Shaping machine and method for shaping

Abstract

The application relates to a gear shaping type trimming machine and a trimming method thereof. The gear shaping type trimming machine comprises a frame, a lower die assembly, an upper die assembly and a driving assembly; the lower die assembly comprises a lower workbench and a lower cutter die fixed above the lower workbench; the upper die assembly comprises an upper workbench, an upper cutter die fixed below the upper workbench and an upper linear driving mechanism; the driving assembly comprises an eccentric shaft, a rack, a lower linear driving mechanism and an auxiliary linear driving mechanism; the eccentric shaft is rotatably connected to the frame around the axis of the eccentric shaft, the lower end of the eccentric shaft is provided with engaging teeth, the rack is engaged with the engaging teeth on the eccentric shaft, and the upper end of the eccentric shaft is connected to the lower workbench. The lower linear driving mechanism and the rack replace the motor in the prior art to drive the rotation of the lower workbench, compared with the motor, the vibration of the lower linear driving mechanism is smaller, the vibration during the movement of the trimming machine is reduced, the vibration and displacement of the upper cutter die and the lower cutter die relative to the workpiece are reduced, and the trimming precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical processing, in particular to a gear shaping type trimming machine and a trimming method thereof. BACKGROUND

[0002] For blanking, stamping or stretch forming of shell or cover box products, such as lunch boxes, lithium battery shells, barrels, basins, door handles and various regular or irregular objects, after forming, whether metal parts, plastic parts or other materials, due to the uneven edges of the parts after stamping, the parts with excess material often need to be trimmed, and the excess material that needs to be cut off is the waste edge of the workpiece.

[0003] In the prior art, when cutting the workpiece, a motor is usually used to drive the cutter die to rotate, but during operation, the motor has a certain vibration, which will cause the cutter die to vibrate, affecting the precision of the cut workpiece. SUMMARY

[0004] The purpose of the present application is to provide a gear shaping type trimming machine to improve the precision of trimming.

[0005] To solve the above technical problems, the present application adopts the following technical scheme:

[0006] According to one aspect of the present application, the present application provides a gear shaping trimming machine, comprising a frame, a lower die assembly, an upper die assembly and a driving assembly; the lower die assembly comprises a lower workbench arranged on the frame and a lower cutter die fixed above the lower workbench; the upper die assembly comprises an upper workbench arranged on the frame, an upper cutter die fixed below the upper workbench and an upper linear driving mechanism fixed on the frame; the upper linear driving mechanism is connected to the upper workbench to drive the upper workbench to move towards or away from the lower workbench; the vertical projection of the upper cutter die falls on the lower cutter die, and a cutter gap is arranged between the upper cutter die and the lower cutter die; the driving assembly comprises an eccentric shaft, a rack, a lower linear driving mechanism and an auxiliary linear driving mechanism; the eccentric shaft is rotatably connected to the frame about its own axis, the eccentric shaft is provided with engaging teeth on its side, the rack is matched with the engaging teeth on the eccentric shaft, the eccentric shaft is connected to the lower workbench, the lower linear driving mechanism has a lower driving shaft which can linearly extend in the horizontal direction, and the lower driving shaft is connected to the rack; the auxiliary linear driving mechanism is fixed on the frame and located outside the lower workbench, the auxiliary linear driving mechanism has an auxiliary driving shaft which can linearly extend in the horizontal direction, and the auxiliary driving shaft abuts against the lower workbench to drive the lower workbench to move horizontally, so that the upper cutter die collides with the workpiece to break the workpiece; the lower linear driving mechanism drives the rack to move horizontally, the rack drives the engaging teeth to rotate to drive the eccentric shaft to rotate with the engaging teeth, the rotation of the eccentric shaft drives the lower workbench to rotate, the lower cutter die moves with the lower workbench, so as to drive the workpiece on the lower cutter die to move relative to the upper cutter die to make the upper cutter die trim the workpiece.

[0007] Optionally, the driving mechanism further comprises a sliding block, the upper end of the eccentric shaft is rotatably connected to the sliding block about its own axis; the bottom surface of the lower workbench is provided with a sliding groove extending along the axis direction of the driving shaft of the auxiliary linear driving mechanism, and the sliding block is arranged in the sliding groove and can move along the extension direction of the sliding groove.

[0008] Optionally, the driving assembly further comprises an elastic return member, the elastic return member is arranged outside the lower workbench and connected to the lower workbench to reset the lower workbench after being pushed by the auxiliary linear driving mechanism.

[0009] Optionally, the frame has a fixing seat, the fixing seat is provided with a through hole, the eccentric shaft is installed in the through hole through a bearing, and the lower end of the eccentric shaft penetrates out of the fixing plate.

[0010] Optionally, the rack further has a frame which is a hollow structure open upward and downward, the frame being fixed to the upper surface of the fixed base; the lower end of the lower workbench is located in the frame, and the elastic return member is located on the side of the lower workbench away from the auxiliary linear driving mechanism, one end of the elastic return member being fixed to the frame and the other end abutting against the lower workbench.

[0011] Optionally, the driving assembly further comprises a backing plate and balls, the backing plate being provided with mounting holes, the balls being located in the mounting holes and protruding from the upper and lower surfaces of the backing plate, the backing plate and the balls being located between the fixed base and the lower workbench and abutting against the upper surface of the fixed base and the lower surface of the lower workbench.

[0012] Optionally, the driving assembly further comprises a jacking rod and a jacking mechanism for driving the jacking rod to move vertically; the fixed base, the lower workbench and the lower die are provided with through jacking holes in the vertical direction, the jacking rod being located in the jacking holes and used for jacking the workpiece upward.

[0013] Optionally, the rack further has vertically arranged guide rails and a top plate fixed to the top ends of the guide rails, the guide rails being fixed to the upper surface of the fixed base and extending vertically upward, the upper workbench being movably mounted on the guide rails in the extending direction of the guide rails, the upper linear driving mechanism having an upper driving body and an upper driving shaft which is telescopic in the vertical direction, the upper driving body of the upper linear driving mechanism being fixed to the top plate, and the upper driving shaft of the upper linear driving mechanism being fixed to the upper workbench.

[0014] According to one aspect of the present application, the present application provides a trimming method of a gear shaping trimming machine, and provides the above-mentioned gear shaping trimming machine; a workpiece is placed and fixed on the lower die; the upper linear driving mechanism drives the upper workbench to move vertically downward, so that the upper die and the lower die are combined; the auxiliary linear driving mechanism drives the lower workbench to move horizontally, and the lower die moves with it, so that the workpiece on the lower die moves relative to the upper die, the upper die and the workpiece collide, and the workpiece is sheared to form a break; the lower linear driving mechanism drives the eccentric shaft to rotate, so that the lower workbench moves in a circular motion relative to the upper die, and the workpiece is trimmed.

[0015] From the above technical solutions, the present application has at least the following advantages and positive effects:

[0016] In the present application, the workpiece is fixed on the lower cutter die, the lower linear drive mechanism drives the rack to move, the rack drives the meshing gear to rotate, so as to drive the eccentric shaft to rotate with the meshing gear, the rotation of the eccentric shaft drives the lower workbench to move in a circle, and the lower cutter die moves with the lower workbench, so as to drive the workpiece on the lower cutter die to move relative to the upper cutter die, so as to trim the workpiece; in the present application, the lower linear drive mechanism and the rack replace the motor in the prior art to drive the rotation of the lower workbench, compared with the motor, the vibration of the lower linear drive mechanism is smaller, the vibration of the trimming machine during movement is reduced, so that the vibration and displacement of the upper cutter die and the lower cutter die relative to the workpiece are reduced, and the trimming precision is improved.

[0017] The auxiliary linear drive mechanism is fixed on the rack and located outside the lower workbench, the auxiliary linear drive mechanism has an auxiliary drive shaft which can linearly extend in the horizontal direction, the auxiliary drive shaft abuts against the lower workbench and is used for driving the horizontal movement of the lower workbench, so that the upper cutter die collides with the workpiece and breaks the workpiece. When the auxiliary linear mechanism breaks the workpiece, the upper cutter die starts to cut along one end of the broken part, so that the slippage of the upper cutter die on the workpiece is avoided, and the trimming precision is improved. At the same time, after the workpiece is broken, the workpiece has a tearing structure and tendency at the broken part, when the upper cutter die cuts the workpiece, the workpiece is cut along the broken part by using a smaller force, so that a smaller power lower linear drive mechanism can be used for trimming, and the cost is saved.

[0018] Further, the auxiliary linear drive mechanism is fixed on the rack, the auxiliary drive shaft abuts against the lower workbench, and the auxiliary linear drive mechanism is not connected with the lower workbench, so that the weight of the lower workbench is reduced, the driving force required for the movement of the workbench is reduced, a smaller power lower linear drive mechanism can be used for trimming, and the cost is saved. At the same time, the auxiliary linear drive mechanism does not need to be connected with the lower workbench, so that the installation and production processes are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is an exploded structural schematic view of the gear shaping type trimming machine of the present application;

[0020] Figure 2 is another exploded structural schematic view of the gear shaping type trimming machine of the present application;

[0021] Figure 3 is a sectional structural schematic view of the gear shaping type trimming machine of the present application;

[0022] Figure 4 is another sectional structural schematic view of the gear shaping type trimming machine of the present application;

[0023] Figure 5 is Figure 4 is an enlarged view of A in the figure;

[0024] Figure 6is a work flow chart of the trimming method of the present application.

[0025] Reference signs are explained as follows:

[0026] 1, rack; 11, fixed seat; 12, top plate; 13, guide rail; 14, box body; 15, frame; 111, through hole; 2, upper die assembly; 21, upper workbench; 22, upper cutter die; 23, upper linear driving mechanism; 3, lower die assembly; 31, lower workbench; 311, moving plate; 312, workbench plate; 313, sliding groove; 32, lower cutter die; 4, driving assembly; 40, jacking mechanism; 41, eccentric shaft; 411, bearing; 42, rack; 43, sliding block; 44, lower linear driving mechanism; 45, meshing tooth; 46, auxiliary linear driving mechanism; 47, backing plate; 48, ball; 49, elastic return member; 5, hydraulic power system. DETAILED DESCRIPTION

[0027] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can be varied in a wide range of embodiments, none of which depart from the scope of the present application, and that the description and drawings are to be considered as illustrative in nature, and not as restrictive to the present application.

[0028] Reference Figures 1 to 4 The embodiment provides a gear shaping type trimming machine, which comprises a rack 1, an upper die assembly 2, a lower die assembly 3 and a driving assembly 4 arranged on the rack 1. The upper die assembly 2 and the lower die assembly 3 are arranged in a vertical position, and a cutter edge is arranged between the upper die assembly 2 and the lower die assembly 3. When trimming a workpiece, the workpiece is fixed on the lower die assembly 3, the driving assembly 4 drives the lower die assembly 3 to move relative to the upper die assembly 2, and the cutter edge between the upper die assembly 2 and the lower die assembly 3 is used to trim the workpiece.

[0029] In the embodiment, the trimming machine is a vertical structure, and the up, down, left and right, vertical and horizontal in the text are referred to in a vertical state. In some embodiments, the corresponding reference positions of the horizontal trimming machine are adaptively changed.

[0030] The rack 1 of the embodiment comprises a fixed seat 11, a top plate 12 arranged above the fixed seat 11 at intervals, a plurality of guide rails 13 connected between the fixed seat 11 and the top plate 12, a box body 14 fixed on the bottom surface of the fixed seat 11, and a frame 15 fixed on the upper surface of the fixed seat 11. The fixed seat 11 is provided with a through hole 111 in the vertical direction, and the frame 15 is a hollow structure with an upper opening and a lower opening.

[0031] The upper die assembly 2 comprises an upper worktable 21 slidably connected to the guide rail 13 along the extension direction of the guide rail 13, an upper knife die 22 fixed below the upper worktable 21, and an upper linear driving mechanism 23 fixed to the top plate 12. The upper linear driving mechanism 23 has an upper driving body and an upper driving shaft which is vertically telescopic. The upper driving body of the upper linear driving mechanism 23 is fixed to the top plate 12, and the upper driving shaft of the upper linear driving mechanism 23 is fixed to the upper worktable 21 to drive the upper worktable 21 to slide along the guide rail 13, so that the upper knife die 22 moves towards or away from the lower die assembly 3.

[0032] Further, the upper knife die 22 is provided with a cutting edge for shearing, and the cutting edge is annular in structure.

[0033] In the embodiment, the upper linear driving mechanism 23 is an oil cylinder, and in other embodiments, the upper linear driving mechanism 23 can be a gas cylinder.

[0034] The lower die assembly 3 comprises a lower worktable 31 arranged above the fixed base 11, and a lower knife die 32 fixed above the lower worktable 31.

[0035] The lower worktable 31 of the embodiment comprises a moving plate 311, and a worktable plate 312 fixed above the moving plate 311. The moving plate 311 is located inside the frame 15, the worktable plate 312 is located above the frame 15, and the lower knife die 32 is fixed above the worktable plate 312.

[0036] Further, the lower surface of the lower worktable 31 is provided with a sliding groove 313. Specifically, the lower surface of the moving plate 311 is provided with the sliding groove 313.

[0037] Further, the vertical projection of the upper knife die 22 falls on the lower knife die 32, so as to fix the workpiece between the upper knife die 22 and the lower knife die 32 when the upper knife die 22 and the lower knife die 32 are closed.

[0038] In the embodiment, the driving assembly 4 comprises an eccentric shaft 41, a rack 42, a sliding block 43, and a lower linear driving mechanism 44 for driving the rack 42 to move.

[0039] The eccentric shaft 41 is rotatably connected to the fixed base 11 about its own axis. Specifically, the outer periphery of the eccentric shaft 41 is provided with a bearing 411, and the bearing 411 is fixed to the through hole 111 of the fixed base 11.

[0040] The lower end of the eccentric shaft 41 penetrates through the fixed base 11 and extends into the box body 14. The lower end of the eccentric shaft 41 is provided with a meshing tooth 45. In the embodiment, the meshing tooth 45 on the eccentric shaft 41 is installed on an existing gear. In other embodiments, the meshing tooth 45 can be directly machined on the eccentric shaft 41.

[0041] The rack 42 is mounted in the box 14 and can slide in the box 14, and the rack 42 is engaged with the engaging teeth 45 at the lower end of the eccentric shaft 41.

[0042] The slider 43 is rotatably mounted at the upper end of the eccentric shaft 41 and is arranged in the sliding groove 313.

[0043] The lower linear drive mechanism 44 has a lower drive body fixed to the box 14 and a lower drive shaft telescopically movable in the horizontal direction, and the lower drive shaft of the lower linear drive mechanism 44 is connected to the rack 42 and is used to drive the rack 42 to move along the extension direction of the rack 42. The lower linear drive mechanism 44 can be an oil cylinder or an air cylinder.

[0044] The lower linear drive mechanism 44 drives the rack 42 to move along the extension direction of the rack 42, so as to drive the engaging teeth 45 to rotate, and the eccentric shaft 41 rotates accordingly. The rotation of the eccentric shaft 41 drives the slider 43 to move in a circular motion on the eccentric shaft 41.

[0045] Further, the driving assembly 4 further comprises an auxiliary linear drive mechanism 46, and the auxiliary linear drive mechanism 46 has an auxiliary drive body fixed to the frame 15 and located outside the lower workbench 31 and an auxiliary drive shaft telescopically movable in the horizontal direction. The auxiliary drive shaft of the auxiliary linear drive mechanism 46 abuts against the moving plate 311 of the lower workbench 31, the sliding groove 313 at the bottom surface of the moving plate 311 extends along the axis direction of the auxiliary drive shaft of the auxiliary linear drive mechanism 46, and the slider 43 can slide in the sliding groove 313 along the extension direction of the sliding groove 313.

[0046] Specifically, in the embodiment, the auxiliary linear drive mechanism 46 is an oil cylinder, the cylinder body of the auxiliary linear drive mechanism 46 is fixed to the frame 15, and the rod body of the auxiliary linear drive mechanism 46 abuts against the outer side surface of the moving plate 311.

[0047] The two eccentric shafts 41 are provided in the embodiment, and one slider 43 is arranged at the upper end of each of the two eccentric shafts 41. The arrangement of the two sliders 43 avoids relative rotation between the lower workbench 31 and the slider 43.

[0048] When the workpiece is trimmed, the auxiliary linear drive mechanism 46 drives the moving plate 311 to relatively move along the extension direction of the sliding groove 313.

[0049] Referring to Figure 5The driving assembly 4 further comprises an elastic return member 49 arranged outside the lower workbench 31, and the thrust direction of the elastic return member 49 is parallel to the axis direction of the auxiliary driving shaft of the auxiliary linear driving mechanism 46. Specifically, the elastic return member 49 can be a spring or an elastic shaft, and the elastic return member 49 is arranged on the side of the lower workbench 31 away from the auxiliary linear driving mechanism 46, one end of the elastic return member 49 is fixed to the frame 15, and the other end abuts against the lower workbench 31.

[0050] In the embodiment, the driving shaft of the auxiliary linear driving mechanism 46 is elongated to push the lower workbench 31 to move, and the lower die 32 moves with the lower workbench 31, so that the workpiece on the lower die 32 moves relative to the upper die 22, the upper die 22 breaks the workpiece, and then the driving shaft of the auxiliary linear driving mechanism 46 is retracted, the lower workbench 31 is pushed back to the initial position under the elastic force of the elastic return member 49, at this time, the side surface of the lower workbench 31 abuts against the frame 15, and the elastic return member 49 resets the lower workbench 31 pushed by the auxiliary linear driving mechanism 46.

[0051] In the embodiment, the axis direction of the driving shaft of the auxiliary linear driving mechanism 46 is perpendicular to the axis direction of the driving shaft of the lower linear driving mechanism 44, and in other embodiments, the axis direction of the driving shaft of the auxiliary linear driving mechanism 46 can be parallel to the axis direction of the driving shaft of the lower linear driving mechanism 44. The auxiliary linear driving mechanism 46 can be an oil cylinder or an air cylinder.

[0052] Further, referring to Figure 5 The driving assembly 4 further comprises a backing plate 47 and a plurality of balls 48, the backing plate 47 is provided with mounting holes, the balls 48 are arranged in the mounting holes and protrude from the upper and lower surfaces of the backing plate 47, the backing plate 47 and the balls 48 are arranged between the fixed seat 11 and the lower workbench 31, and the balls 48 abut against the upper surface of the fixed seat 11 and the lower surface of the lower workbench 31. Specifically, the balls 48 abut against the lower surface of the moving plate 311.

[0053] The backing plate 47 is arranged between the lower surface of the lower workbench 31 and the fixed seat 11, the balls 48 are clamped on the backing plate 47, and the balls 48 are supported between the lower workbench 31 and the fixed seat 11. Specifically, the balls 48 are supported between the bottom surface of the moving plate 311 and the upper surface of the fixed seat 11. The balls 48 are arranged in a plurality of groups, the balls 48 are positioned by the backing plate 47, the balls 48 and the backing plate 47 are located in the frame 15, and the outer side of the backing plate 47 abuts against the frame 15. When the lower workbench 31 moves relative to the fixed seat 11, the lower workbench 31 moves on the balls 48, and the balls 48 rotate in the backing plate 47, thereby reducing the friction of the movement of the lower workbench 31. When the lower workbench 31 moves, the lower workbench 31 and the fixed seat 11 do not contact, and the wear of the lower workbench 31 and the fixed seat 11 caused by friction is avoided.

[0054] Further, the ball 48 is arranged on the base plate 47 so that a gap is formed between the slider 43 and the upper wall of the sliding groove 313, thereby reducing the friction between the slider 43 and the sliding groove 313.

[0055] The driving assembly 4 of the embodiment further comprises a jacking rod (not shown in the figure) and a jacking mechanism 40 for driving the jacking rod to move vertically; specifically, the cylinder body of the jacking mechanism 40 is fixed to the box body 14; a through jacking hole (not shown in the figure) is formed among the fixed seat 11, the lower workbench 31 and the lower die 32, and the jacking rod is arranged in the jacking hole and can slide in the jacking hole.

[0056] Specifically, the jacking rod can be a rod body part of the jacking mechanism 40, or can be another structure fixed to the rod body.

[0057] Further, the trimming machine of the embodiment further comprises a hydraulic power system 5 and a control center; the hydraulic power system 5 is connected to the upper linear driving mechanism 23, the lower linear driving mechanism 44, the auxiliary linear driving mechanism 46 and the jacking mechanism 40, and provides power for the upper linear driving mechanism 23, the lower linear driving mechanism 44, the auxiliary linear driving mechanism 46 and the jacking mechanism 40; the control center is electrically connected to the upper linear driving mechanism 23, the lower linear driving mechanism 44, the auxiliary linear driving mechanism 46 and the jacking mechanism 40.

[0058] Based on the structure described above, when trimming, the workpiece is placed and fixed on the lower die 32, the driving shaft of the upper linear driving mechanism 23 extends downward, so that the upper die 22 moves downward and is combined with the lower die 32. The auxiliary linear driving mechanism 46 is elongated to drive the lower workbench 31 to start translation from the initial position, so that the upper die 22 cuts a notch on one side of the workpiece. Then, the auxiliary linear driving mechanism 46 is retracted, and the elastic return member 49 pushes the lower workbench 31 back to the initial position.

[0059] The lower linear driving mechanism 44 drives the rack 42 to move, the rack 42 drives the meshing teeth 45 to rotate, the eccentric shaft 41 rotates accordingly, and drives the lower workbench 31 to make a circular motion, so that the workpiece makes a circular motion relative to the upper die 22, and the upper die 22 starts to cut the workpiece along the notch of the workpiece. When the lower linear driving mechanism 44 starts to move, the upper die 22 starts to cut along one end of the notch, which avoids the slipping of the upper die 22 on the workpiece and improves the trimming accuracy. At the same time, after the workpiece is notched, the workpiece has a tearing structure and tendency at the notch, and when the upper die 22 cuts the workpiece, the upper die 22 cuts the workpiece along the notch by using a smaller force, so that a lower linear driving mechanism 44 with smaller power can be used for trimming, thereby saving costs.

[0060] When the auxiliary linear driving mechanism 46 drives the lower workbench 31 to return to the initial position, the upper die 22 is pushed out of the broken opening of the workpiece, avoiding the upper die 22 from being stuck in the broken opening, and reducing the required force when the lower linear driving mechanism 44 is started.

[0061] After the upper die 22 finishes cutting the edge of the workpiece, the lower linear driving mechanism 44 drives the rack 42 to return to the initial position, so that the lower workbench 31 and the lower die 32 return to the initial position. Then, the upper linear driving mechanism 23 drives the upper workbench 21 and the upper die 22 to move upward and return to the initial position. The jacking mechanism 40 drives the jacking rod to jack up the workpiece after cutting the edge, and the workpiece after cutting the edge is taken off the edge cutting machine.

[0062] In the present application, the lower linear driving mechanism 44 and the rack 42 replace the motor in the prior art to drive the rotation of the lower workbench 31, and compared with the motor, the vibration of the lower linear driving mechanism 44 is lower, reducing the vibration when the edge cutting machine moves, thereby reducing the vibration and displacement of the upper die 22 and the lower die 32 relative to the workpiece, and improving the cutting precision.

[0063] Referring to Figure 6 The embodiment also provides an edge cutting method of the gear shaping type edge cutting machine, and the edge cutting machine is provided above.

[0064] S10: The workpiece is placed and fixed on the lower die 32.

[0065] S20: The upper linear driving mechanism 23 drives the upper workbench 21 to move vertically downward, so that the upper die 22 and the lower die 32 are combined. Specifically, the driving shaft of the upper linear driving mechanism 23 extends downward to drive the upper workbench 21 and the upper die 22 to move downward, so that the upper die 22 and the lower die 32 are combined.

[0066] S30: The auxiliary linear driving mechanism 46 drives the lower workbench 31 to move horizontally, and the lower die 32 moves accordingly, the workpiece on the lower die 32 moves relative to the upper die 22, and the upper die 22 cuts the workpiece to form a broken opening. Specifically, in the embodiment, the auxiliary linear driving mechanism 46 is elongated, so that the lower workbench 31 moves relative to the sliding block 43 along the extension direction of the auxiliary linear driving mechanism 46, so that the workpiece on the lower die 32 moves relative to the upper die 22, and the upper die 22 cuts the workpiece to form a broken opening on the workpiece. The auxiliary linear driving mechanism 46 is retracted, and the elastic return member 49 pushes the lower workbench 31 to return to the initial position.

[0067] S40: The lower linear driving mechanism 44 drives the eccentric shaft 41 to rotate, so that the lower workbench 31 makes a circular motion relative to the upper cutter 22 to cut the edge of the workpiece. Specifically, the lower linear driving mechanism 44 drives the rack 42 to move, the movement of the rack 42 drives the gear 45 to rotate, thereby driving the eccentric shaft 41 to rotate on the fixed base 11, the eccentric shaft 41 drives the slider 43 to make a circular motion and makes the eccentric shaft 41 rotate relative to the slider 43; the movement of the slider 43 drives the lower workbench 31 and the lower cutter 32 to make a circular motion, so that the workpiece on the lower cutter 32 makes a circular motion relative to the upper cutter 22, and the upper cutter 22 cuts the edge of the workpiece.

[0068] S50: After cutting the edge of the workpiece, the lower linear driving mechanism 44 drives the rack 42 to return to the initial position, so that the lower workbench 31 returns to the initial position. Specifically, the lower linear driving mechanism 44 drives the rack 42 to return to the initial position, so that the lower workbench 31 and the lower cutter 32 return to the initial position. Then, the upper linear driving mechanism 23 drives the upper workbench 21 and the upper cutter 22 to move upward and return to the initial position.

[0069] S60: The workpiece is taken off from the lower cutter 32. Specifically, the jacking mechanism 40 drives the jacking rod to jack up the workpiece after cutting the edge upward, and the workpiece after cutting the edge is taken off from the edge cutting machine.

[0070] Although the present application has been described with reference to several exemplary embodiments, it is understood that the words that have been used are words of description and illustration, rather than words of limitation. As the application can be embodied in many different forms without departing from the spirit or essential characteristics thereof, it is understood that the present embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the application should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with their full scope of equivalents to which such claims are entitled.

Claims

1. A gear shaping cutter, characterized in that, The utility model relates to a cutting device for cutting workpiece, comprising: a rack including a fixing base and a frame fixed on the upper surface of the fixing base; a lower die assembly including a lower workbench arranged on the rack and a lower cutter die fixed above the lower workbench; an upper die assembly including an upper workbench arranged on the rack, an upper cutter die fixed below the upper workbench, and an upper linear driving mechanism fixed on the rack; the upper linear driving mechanism is connected to the upper workbench to drive the upper workbench to move towards or away from the lower workbench; the vertical projection of the upper cutter die falls on the lower cutter die, and a cutting edge is arranged between the upper cutter die and the lower cutter die; a driving assembly including an eccentric shaft, a rack, a lower linear driving mechanism, and an auxiliary linear driving mechanism; the eccentric shaft is rotatably connected to the rack about its axis, the eccentric shaft is provided with meshing teeth on its periphery, the rack is matched with the meshing teeth on the eccentric shaft, the eccentric shaft is connected to the lower workbench, the lower linear driving mechanism has a lower driving shaft that can linearly extend in the horizontal direction, and the lower driving shaft is connected to the rack; the auxiliary linear driving mechanism is fixed on the rack and located outside the lower workbench, the auxiliary linear driving mechanism includes an auxiliary driving body, the auxiliary driving body is fixed on the frame, the auxiliary linear driving mechanism has an auxiliary driving shaft that can linearly extend in the horizontal direction, and the auxiliary driving shaft abuts against the lower workbench to drive the lower workbench to move horizontally, so that the upper cutter die collides with the workpiece to break the workpiece; the lower linear driving mechanism drives the rack to move horizontally, the rack drives the meshing teeth to rotate to drive the eccentric shaft to rotate with the meshing teeth, the rotation of the eccentric shaft drives the lower workbench to rotate, the lower cutter die moves with the lower workbench to drive the workpiece on the lower cutter die to move relative to the upper cutter die, so that the upper cutter die cuts the edge of the workpiece; the driving assembly further includes an elastic return member arranged outside the lower workbench and connected to the lower workbench to reset the lower workbench after being pushed by the auxiliary linear driving mechanism; the elastic return member is a spring or an elastic shaft.

2. Gear shaping cutter according to claim 1, characterized in that the driving mechanism further includes a sliding block, the upper end of the eccentric shaft is rotatably connected to the sliding block about its axis; the bottom surface of the lower workbench is provided with a sliding groove extending along the axis of the driving shaft of the auxiliary linear driving mechanism, and the sliding block is arranged in the sliding groove and can move along the extension direction of the sliding groove.

3. The gear shaping machine according to claim 2, characterized in that the rack has a fixing base, the fixing base is provided with a through hole, the eccentric shaft is installed in the through hole through a bearing, and the lower end of the eccentric shaft penetrates out of the fixing base.

4. The gear shaping machine according to claim 3, characterized in that the rack further has a frame, the frame is a hollow structure with an upper opening and a lower opening, and the frame is fixed on the upper surface of the fixing base; the lower end of the lower workbench is located in the frame, one end of the elastic return member is fixed on the frame, and the other end of the elastic return member abuts against the lower workbench.

5. The gear shaping machine according to claim 3, wherein The driving assembly further comprises a base plate and balls, the base plate is provided with mounting holes, the balls are arranged in the mounting holes and protrude from the upper and lower surfaces of the base plate, the base plate and the balls are arranged between the fixed seat and the lower workbench, and the balls abut against the upper surface of the fixed seat and the lower surface of the lower workbench.

6. The gear shaping machine according to claim 3, wherein The driving assembly further comprises a jacking rod and a jacking mechanism for driving the jacking rod to move vertically; the fixed seat, the lower workbench and the lower die are provided with through jacking holes in the vertical direction, and the jacking rod is arranged in the jacking holes and used for jacking the workpiece upward.

7. The gear shaping machine according to claim 3, wherein The rack is further provided with vertically arranged guide rails and a top plate fixed to the top ends of the guide rails, the guide rails are fixed to the upper surface of the fixed seat and vertically extend upward, the upper workbench is movably arranged on the guide rails in the extending direction of the guide rails, the upper linear driving mechanism is provided with an upper driving body and an upper driving shaft which can be extended and retracted in the vertical direction, the upper driving body of the upper linear driving mechanism is fixed to the top plate, and the upper driving shaft of the upper linear driving mechanism is fixed to the upper workbench.

8. The gear shaping machine according to claim 2, wherein The axis of the auxiliary driving shaft of the auxiliary linear driving mechanism is perpendicular to the axis of the lower driving shaft of the lower linear driving mechanism.

9. A method of trimming with a gear shaping machine, characterized in that A gear shaping type trimming machine is provided as claimed in any one of claims 1-8; The workpiece is placed and fixed on the lower die; The upper linear driving mechanism drives the upper workbench to move vertically downward, so that the upper die and the lower die are combined; The auxiliary linear driving mechanism drives the lower workbench to move horizontally, and the lower die moves with the lower workbench, so that the workpiece on the lower die moves relative to the upper die, the upper die and the workpiece collide, and the workpiece is sheared to form a break; The lower linear driving mechanism drives the eccentric shaft to rotate, so that the lower workbench moves in a circular motion relative to the upper die, and the workpiece is trimmed.

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