Manual cutting equipment
Technical Field
The invention relates to the field of cutting equipment, in particular to manual cutting equipment.
Background
In automobile parts manufacturing enterprises, the use of cutting machine is very frequent, has manual cutting machine and automatic cutout machine, uses manual cutting machine can satisfy production needs when output can reach the requirement, can practice thrift the cost of purchasing automatic cutout machine again, and the structure of manual cutting machine changes everywhere, but the more important requirement is cutting accurate, and work efficiency is high, the operation of being convenient for. In the prior art, the manual cutting equipment is not accurate in cutting, or is complex in operation and low in working efficiency.
Disclosure of Invention
The invention aims to: aiming at the problems in the prior art, the invention provides the manual cutting equipment which not only can accurately cut the workpiece, but also is simple and convenient to operate and high in working efficiency.
The technical scheme is as follows: the invention provides manual cutting equipment which comprises a workbench, a base, a cutting device and a rotary clamping device, wherein the workbench and the base are horizontally arranged; the cutting device consists of a cutting knife and a cutting knife driving mechanism, wherein the cutting knife is fixed on the cutting knife driving mechanism, and the cutting knife driving mechanism drives the cutting knife to advance and retreat; the rotary clamping device consists of an elastic gripper, a rotary rod, a telescopic sleeve handle and a rotary driving mechanism, wherein the tail end of the elastic gripper is fixed at the front end of the rotary rod and is coaxially arranged with the rotary rod, and the rotary rod is driven to rotate by the rotary driving mechanism; the telescopic sleeve is sleeved on the periphery of the rotary rod, and the telescopic sleeve is in sliding connection with the base and the rotary rod; the front end of the telescopic sleeve handle is rotationally connected with the base, the middle part of the telescopic sleeve handle is rotationally connected with the telescopic sleeve, and the tail end of the telescopic sleeve handle is a handheld end.
Further, the cutter driving mechanism consists of a fixed seat and a track advancing and retreating mechanism, the cutter is fixed on the fixed seat, and the cutting edge of the cutter is arranged opposite to the opening end of the elastic gripper; the fixed seat is in sliding connection with the rail fixed on the workbench and is fixedly connected with the driving and reversing mechanism. When the cutter is required to be fed or retracted, the fixing seat is pushed or pulled to advance or retract along the track by the advancing and retracting gold hook, and then the cutter fixed on the fixing seat can also realize the feeding or retracting.
Further, the driving and reversing mechanism consists of a rack, a gear and a driving and reversing handle, one end of the rack is fixedly connected with the fixing seat, and the other end of the rack is meshed with the gear; the gear is rotationally connected with the workbench through a rotating shaft, the gear is fixed on the rotating shaft, and the rotating shaft is perpendicular to the rack and the track; the front end of the advancing and retreating handle is fixedly connected with the rotating shaft, and the tail end of the advancing and retreating handle is a handheld end. The rotating shaft is rotated through the advance and retreat handle, so that the gear is driven to rotate, the rotation of the gear drives the rack to advance and retreat, and the advance and retreat of the rack drives the fixing seat to further drive the cutting knife to advance or retreat along the track.
Further, the manual cutting device further comprises a baffle plate, the baffle plate is vertically fixed at the front end of the fixing seat, and the cutting edge of the cutting knife passes through the baffle plate and then is opposite to the opening end of the elastic gripper. The baffle can block the cut workpiece ejected from the elastic gripper, and the ejected workpiece is prevented from jumping out to hurt operators.
Further, at least one fixed adjusting screw is arranged on the fixed seat, the threaded end of the fixed adjusting screw penetrates through the top surface of the fixed seat and then presses the cutting knife, and the nut end is positioned above the top surface of the fixed seat; the number of the fixed adjusting screws is four. The adjusting and fixing adjusting screw not only can play a role in fixing the cutting knife, but also can adjust the distance between the cutting knife and the elastic gripper, so that the device can be suitable for workpieces with different cutting depths.
Further, the rotary driving mechanism mainly comprises a motor, a rotating shaft, a driving gear and a driven gear, wherein the motor is rotationally connected with the driving gear through the rotating shaft, the driving gear is meshed with the driven gear, the driven gear is fixedly sleeved on the periphery of the middle part of the rotary rod, and the outer diameter of the driven gear is smaller than the inner diameter of the telescopic sleeve. After the motor is started, the driving gear is driven to rotate through the rotating shaft, so that the driven gear rotates to drive the rotating rod to rotate, and the elastic gripper is driven to rotate by the rotation of the rotating rod.
Further, the opening end of the elastic gripper consists of a plurality of elastic sheets distributed circumferentially, the tail end of the elastic gripper is of an elastic truncated cone structure, the large-caliber end of the truncated cone structure is in seamless connection with each elastic sheet, and the small-caliber end of the truncated cone structure is in seamless connection with the rotating rod. The end of the elastic gripper is designed into a cone frustum structure, the open end of the elastic gripper is designed to be composed of a plurality of circumferentially distributed elastic sheets, when the telescopic sleeve moves forwards along the rotary rod, the telescopic sleeve applies a extrusion force from the periphery to the circle center to the cone frustum structure of the elastic gripper, the extrusion force enables a plurality of elastic sheets of the elastic gripper to shrink from the periphery to the circle center, and therefore workpieces to be cut in the elastic sheets can be clamped, and therefore the workpiece is prevented from being unstable in position and affecting cutting precision during subsequent cutting.
The beneficial effects are that: according to the invention, after a workpiece to be cut is placed into the elastic gripper, the telescopic sleeve handle is pulled to move the telescopic sleeve towards the direction close to the elastic gripper, after the end of the telescopic sleeve extrudes the elastic gripper, the elastic gripper contracts to clamp the workpiece to be cut, the rotary rod is driven to rotate at a high speed by the rotary driving mechanism, the high-speed rotation of the rotary rod drives the elastic gripper to rotate at a high speed, then the cutting knife is driven to move towards the direction of the elastic gripper by the cutting knife driving mechanism, and after the cutting knife moves to a preset position, the cutting edge of the cutting knife contacts with the workpiece to be cut, which rotates at the high speed, in the elastic gripper, so that the workpiece to be cut can be cut; after cutting is finished, the rotation of the rotary rod is stopped, namely the elastic gripper also stops rotating, the cutting knife is moved to a preset position in the direction away from the elastic gripper through the cutting knife driving mechanism, then the telescopic sleeve is moved to one end away from the elastic gripper along the rotary rod through the telescopic sleeve handle, and the elastic gripper opens to loosen and pop up the cut workpiece. Therefore, in the device, the elastic gripper plays a role in positioning a workpiece to be cut, the cutter driving mechanism plays a role in positioning the cutter, the position of the workpiece to be cut and the position of the cutter are relatively fixed, the size of the workpiece to be cut is accurate, the device is convenient to operate, and the cutting efficiency is high.
Drawings
FIG. 1 is a schematic view of the overall structure of a manual cutting apparatus;
Fig. 2 is a schematic structural view of the manual cutting device after the rotary driving mechanism is matched with the rotary shaft and the telescopic sleeve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The embodiment provides a manual cutting device, as shown in fig. 1, which mainly comprises a workbench 1 arranged horizontally, a base 2 fixed on the workbench 1, a cutting device arranged on the workbench 1 and a rotary clamping device arranged on the base 2, wherein the cutting device comprises a cutting knife 8 and a cutting knife driving mechanism, the cutting knife 8 is fixed on the cutting knife driving mechanism, and the cutting knife driving mechanism drives the cutting knife 8 to advance and retreat; the cutter driving mechanism consists of a fixed seat 9, a track 10 and a advancing and retreating mechanism 11, the cutter 8 is fixed in the fixed seat 9 through four fixed adjusting screws 12, the threaded ends of the fixed adjusting screws 12 penetrate through the top surface of the fixed seat 9 and then are pressed on the cutter 8 to fix the position of the cutter 8, and the nut ends are positioned on the top surface of the fixed seat 9 so as to be convenient for manual screwing; a baffle 13 is vertically fixed at one end of the fixed seat 9 close to the elastic gripper 3, the cutting edge of the cutting knife 8 passes through the baffle 13 and is arranged opposite to the elastic gripper 3, the bottom of the fixed seat 9 is in sliding connection with a rail 10, the rail 10 is fixed on the workbench 1, and the rail 10 is arranged in parallel with the central axis of the elastic gripper 3; the advancing and retreating mechanism 11 is composed of a rack 1101, a gear 1102 and an advancing and retreating handle 1103, one end of the rack 1101 is fixedly connected with the fixed seat 9, the side edge of the other end is provided with teeth meshed with the gear 1102, the gear 1102 is positioned on one side of the rack 1101 with the teeth and is meshed with the rack 1101 at the teeth, the gear 1102 is rotationally connected to the workbench 1 through a rotation shaft 1104 perpendicular to the rack 1101, namely the gear 1102 is fixed on the rotation shaft 1104, the rotation shaft 1104 is rotationally connected to the workbench 1, the front end of the advancing and retreating handle 1103 is fixedly connected to the top end of the rotation shaft 1104, and the tail end is a handheld free end.
The rotary clamping device consists of an elastic gripper 3, a telescopic sleeve handle 4, a rotary driving mechanism 5, a horizontally arranged rotary rod 6 and a telescopic sleeve 7, wherein the elastic gripper 3 consists of a front end formed by a plurality of circumferentially distributed elastic sheets 301 and a tail end of a truncated cone structure 302, a large-caliber end of the truncated cone structure 302 is in seamless connection with each elastic sheet 301, a small-caliber end is in seamless connection with the front end of the rotary rod 6, the middle part of the rotary rod 6 is positioned in the base 2, and the tail end and the front end respectively extend out to the front side and the rear side of the base 2; the rotary driving mechanism 5 positioned in the base 2 mainly comprises a motor 501, a rotating shaft 502, a driving gear 503 and a driven gear 504, wherein the motor 501 is rotationally connected with the rotating shaft 502, the driving gear 503 is fixedly connected with the rotating shaft 502, the driving gear 503 is meshed with the driven gear 504, and the driven gear 504 is sleeved on the periphery of the middle part of the rotary rod 6 and is fixedly connected with the rotary rod 6; the telescopic sleeve 7 is sleeved on the periphery of the rotary rod 6, the inner diameter of the telescopic sleeve 7 is larger than the outer diameter of the driven gear 504, the front end and the tail end of the telescopic sleeve 7 respectively extend out to the front side and the rear side of the base 2, the front end is close to the smaller caliber end of the truncated cone structure 302 of the elastic gripper 3, the middle part of the telescopic sleeve is positioned in the base 2, a window 701 is arranged above the middle part of the telescopic sleeve, the driven gear 504 is positioned in the window 701, and the motor 501, the rotary shaft 502 and the driving gear 503 are positioned outside the window 701 and in the base 2 (as shown in fig. 2); the front end of the telescopic sleeve handle 4 is rotationally connected with the base 2 through a pin shaft (not shown), the middle part is an annular ring 401, the inner diameter of the annular ring 401 is larger than the outer diameter of the telescopic sleeve 7, the annular ring 401 is arranged on the periphery of the tail end of the telescopic sleeve 7 and is rotationally connected with the tail end of the telescopic sleeve 7 through a bolt 14, and the tail end of the telescopic sleeve 7 is a handheld free end;
The working principle of the invention is as follows:
Putting a workpiece to be cut into the elastic sheet 301 of the elastic gripper 3, pulling the telescopic sleeve handle 4 to enable the telescopic sleeve 7 to move towards the direction close to the elastic gripper 3, extruding the conical frustum structure 302 of the elastic gripper 3 from the periphery to the center at the front end of the telescopic sleeve 7, causing the conical frustum structure 302 to shrink, further causing each elastic sheet 301 to shrink so as to grip the workpiece to be cut, starting the motor 501, driving the driving gear 503 to rotate through the rotating shaft 502, further driving the driven gear 504 to rotate, driving the elastic gripper 3 to rotate at a high speed by the rotating rod 6, pulling the driving and reversing handle 1103, driving the rotating shaft 1104 and the gear 1102 to rotate, driving the fixing seat 9 to push the fixing seat 10 to the direction close to the elastic gripper 3 through the engaged rack 1101, driving the cutting knife 8 to stretch into the workpiece to be cut in the elastic gripper 3, and enabling the cutting knife 8 to contact with the workpiece to be cut when stretching into a preset distance, and realizing cutting along with the high-speed rotation of the workpiece to be cut in the elastic gripper 3; after cutting, the motor 501 is turned off, the rotating shaft 502, the driving gear 503, the driven gear 504, the rotating rod 6 and the elastic gripper 3 all stop rotating, the driving and reversing handle 1103 is pulled in the opposite direction to drive the rotating shaft 1104 and the gear 1102 to rotate, the gear 1102 pulls the fixing seat 9 along the track 10 to a direction far away from the elastic gripper 3 through the rack 1101 meshed with the gear 1102, the cutting knife 8 leaves the cut workpiece, then the telescopic sleeve handle 4 is pulled in the opposite direction to enable the telescopic sleeve 7 to move to a direction far away from the elastic gripper 3, the front end of the telescopic sleeve 7 stops extruding the cone frustum structure 302 of the elastic gripper 3, the cone frustum structure 302 is expanded, then all the elastic sheets 301 are expanded and ejected to cut the workpiece, and the ejected workpiece is ejected and impacted by the elastic sheets 301 to the baffle 13 to fall down for collection.
The foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.