Cutting equipment and cutting method for shell type workpiece

Abstract

The invention discloses cutting equipment and a cutting method for shell type workpieces. The cutting equipment comprises a feeding device, a clamping device, a positioning device, a cutting-off device and a pushing device. During machining, the feeding device conveys a to-be-cut workpiece to the clamping position, the clamping device clamps the to-be-cut workpiece at the clamping position, the pushing device pushes the to-be-cut workpiece from the clamping position to the positioning device, the positioning device positions the to-be-cut workpiece to ensure that the to-be-cut workpiece is located at the cut-off position, and the cut-off device cuts the to-be-cut workpiece at the cut-off position. And after cutting, the pushing device pushes the cut workpiece out of the positioning device. In the whole cutting process, the actions of feeding, clamping, positioning, cutting-off and discharging are continuously carried out, manual participation is reduced to a certain extent, machining errors caused by manual participation are reduced, time and labor are saved in the operation process, and the machining quality and machining efficiency of shell type workpieces are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shell-type workpiece processing, and in particular to a shell-type workpiece cutting device and a shell-type workpiece cutting method. Background Art

[0002] During the processing of shell-type workpieces, the workpiece needs to be cut after the deep drawing process is completed to ensure that the workpiece meets the dimensional requirements of subsequent processes.

[0003] However, the existing processing technology for shell-type workpieces still has many defects. For example, the semi-finished product after deep drawing needs to be unloaded from the molding equipment, manually transferred to the cutting station, and after secondary clamping and positioning on the processing machine, the workpiece can be cut. During the whole process, the operator needs to repeatedly adjust the position of the fixture to adapt to the contour of the workpiece, and manually calibrate the cutting reference point. Since the positioning of the fixture is completely dependent on manual experience, the consistency of clamping between different batches or different operators is difficult to ensure, and it is very easy to cause the cutting path to deviate due to slight deviations, resulting in a high scrap rate, which seriously affects the workpiece quality of shell-type workpieces. Moreover, frequent manual intervention prolongs the process connection time, and the whole process is time-consuming and labor-intensive, resulting in a decrease in the processing efficiency of the workpiece.

[0004] Therefore, how to improve the processing quality and efficiency of shell-type workpieces is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a cutting device and a cutting method for shell-type workpieces, in which the loading, clamping, positioning, cutting and unloading actions are carried out continuously, thereby solving the technical problems of low processing quality and efficiency of existing shell-type workpieces.

[0006] To achieve the above-mentioned purpose, the present invention provides a shell-type workpiece cutting device, including a feeding device, a clamping device, a positioning device, a cutting device and a pushing device;

[0007] The loading device is used to transport the workpiece to be cut to the clamping position;

[0008] The clamping device is used to clamp the workpiece to be cut at the clamping position;

[0009] The positioning device is used to position the workpiece to be cut so that the workpiece to be cut is in the cutting position;

[0010] The cutting device is used to cut the workpiece to be cut at the cutting position;

[0011] The pushing device is used to push the workpiece to be cut from the clamping position to the positioning device before the cutting device cuts, and is used to push the cut workpiece from the positioning device after the cutting device cuts.

[0012] In some embodiments, the pusher device includes a driving spindle, a pusher reduction box mounted on one end of the driving spindle, at least one set of pusher transmission mechanisms connected to the pusher reduction box, and at least one set of crank rocker mechanisms connected to all the pusher transmission mechanisms;

[0013] The pusher transmission mechanism includes a pusher driving wheel connected to the terminal output shaft of the pusher reduction box, a pusher driven wheel connected to the crank rocker mechanism, a pusher synchronous belt connected between the pusher driving wheel and the pusher driven wheel, and a pusher tensioning wheel abutting against the pusher synchronous belt;

[0014] The crank rocker mechanism comprises a push crank coaxially connected to the push driven wheel, a push connecting rod hinged to the push crank, a push slider hinged to one end of the push connecting rod away from the push crank, and a push slide rail slidably matched with the push slider; the push slider is fixed with a push ejector pin.

[0015] In some embodiments, the material clamping device includes a fixed material clamping plate, a material clamping cam fixed to the driving spindle, a first clamping jaw and a second clamping jaw slidably disposed at the bottom of the material clamping plate, and a first shifting fork and a second shifting fork respectively hinged to the material clamping plate;

[0016] The clamping cam forms a cam groove, a first roller arranged at one end of the first shift fork is embedded in the cam groove and the other end is connected to the first clamping claw; a second roller arranged at one end of the second shift fork is embedded in the cam groove and the other end is connected to the second clamping claw.

[0017] In some embodiments, the first clamping jaw and the second clamping jaw each include a clamping slide seat slidably matched with the bottom of the clamping fixing plate, and a fixed clamping finger is integrally provided at the end of the clamping slide seat; the clamping slide seat is hinged with a movable clamping finger, and a reset torsion spring is provided between the clamping slide seat and the movable clamping finger;

[0018] The reset torsion spring is used to provide elastic force to the movable clamping fingers when the workpiece to be cut enters between the fixed clamping fingers and the movable clamping fingers so that the fixed clamping fingers and the movable clamping fingers clamp the workpiece to be cut, and is used to assist the movable clamping fingers to reset when the workpiece to be cut separates from the fixed clamping fingers and the movable clamping fingers.

[0019] In some embodiments, the cutting device includes a fixed cutting baffle and at least one set of cutting components hinged to the cutting baffle, and all the cutting components are arranged between the driving spindle and the positioning device;

[0020] Each cutting assembly includes a cutting cam fixed to the driving spindle, a lifting rod with one end hinged to the cutting baffle and the other end abutting against the cutting cam through a cutting roller, a lifting spring connected between the lifting rod and a fixing pin provided on the cutting baffle, and a cutting tool fixed to the lifting rod and opposite to the positioning device.

[0021] In some embodiments, the positioning device includes a positioning bracket, at least one positioning rotating mechanism fixed to the positioning bracket, a positioning drive motor, and at least one positioning transmission mechanism connected between the positioning drive motor and the positioning rotating mechanism;

[0022] The positioning and rotating mechanism comprises a rotatable rotating support and a positioning shaft fixed to the rotating support, and a positioning hole for clamping a workpiece to be cut is formed at the center of the positioning shaft;

[0023] The positioning transmission mechanism comprises a positioning driving wheel connected to the output shaft of the positioning driving motor, a positioning driven wheel coaxially fixedly connected to the rotary support, and a positioning synchronous belt connected between the positioning driving wheel and the positioning driven wheel.

[0024] In some embodiments, a material blocking device is further included on the feeding device, and the material blocking device is used to block the workpiece to be cut from moving along with the feeding device when the workpiece to be cut is transported to the clamping position.

[0025] In some embodiments, the material blocking device includes a fixed material blocking support, a driving shaft and a driven shaft rotatably disposed on the material blocking support, a driving gear fixed to the driving shaft, a driven gear fixed to the driven shaft and meshing with the driving gear, a driving roller fixed to one end of the driving shaft away from the driving gear, and a material blocking block fixed to one end of the driven shaft away from the driven gear;

[0026] When the driving roller abuts against the clamping device, the driving roller drives the driving gear to rotate through the driving shaft, and the driving gear drives the blocking block to rotate through the driven gear until the blocking block blocks the feeding channel of the feeding device.

[0027] In some embodiments, it also includes a fixed frame, the fixed frame includes a fixed bottom plate, the fixed bottom plate is fixedly provided with a stepped support, and the pushing device and the clamping device are both fixedly provided on the stepped support;

[0028] The supporting legs of the fixed frame are provided with height adjustment blocks, and the supporting legs are threadedly connected with the height adjustment blocks.

[0029] The present invention also provides a method for cutting a shell-like workpiece, which is applied to the above-mentioned shell-like workpiece cutting device, and the steps include:

[0030] The loading device transports the workpiece to be cut to the clamping position;

[0031] The clamping device clamps the workpiece to be cut at the clamping position;

[0032] The pushing device pushes the workpiece to be cut from the clamping position to the positioning device;

[0033] The positioning device positions the workpiece to be cut so that the workpiece to be cut is in a cutting position;

[0034] The cutting device cuts the workpiece to be cut at the cutting position;

[0035] The push device pushes the cut workpiece from the positioning device.

[0036] Compared with the background technology, the shell-type workpiece cutting device provided by the present invention includes a feeding device, a clamping device, a positioning device, a cutting device and a pushing device.

[0037] During processing, the loading device first transports the workpiece to be cut to the clamping position, the clamping device clamps the workpiece to be cut at the clamping position, the pushing device pushes the workpiece to be cut from the clamping position to the positioning device, the positioning device positions the workpiece to be cut to ensure that the workpiece to be cut is in the cutting position, the cutting device cuts the workpiece to be cut at the cutting position, and after cutting, the pushing device pushes the cut workpiece from the positioning device.

[0038] During the entire cutting process, the actions of loading, clamping, positioning, cutting and unloading are carried out continuously, which reduces manual participation to a certain extent, reduces the processing errors caused by manual participation, saves time and effort in the operation process, and improves the processing quality and efficiency of shell-type workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0040] Figure 1 A schematic diagram of a shell-like workpiece cutting device provided by a specific embodiment of the present invention;

[0041] Figure 2 for Figure 1 Assembly diagram of the remaining device after removing part of the fixed frame;

[0042] Figure 3 for Figure 1 Schematic diagram of the middle pusher;

[0043] Figure 4 for Figure 3 Assembly drawing of the middle drive spindle, clamping cam and cutting cam;

[0044] Figure 5 for Figure 1 Schematic diagram of the middle clamping device;

[0045] Figure 6 for Figure 5 Schematic diagram of the first gripper;

[0046] Figure 7 for Figure 1 Schematic diagram of the cutting device;

[0047] Figure 8 for Figure 1 Schematic diagram of the positioning device;

[0048] Fig. 9 for Figure 1 Schematic diagram of the middle stop device.

[0049] The reference numerals are as follows:

[0050] A feeding device 1, a clamping device 2, a positioning device 3, a cutting device 4, a pushing device 5, a workpiece to be cut 6, a blocking device 7, a fixed frame 8 and a discharging device 9;

[0051] A material clamping fixing plate 21, a material clamping cam 22, a first clamping jaw 23, a second clamping jaw 24, a first shifting fork 25 and a second shifting fork 26;

[0052] Cam groove 221;

[0053] A material clamping slide 231, a fixed clamping finger 232, a movable clamping finger 233 and a return torsion spring 234;

[0054] A positioning bracket 31, a positioning rotary mechanism 32, a positioning drive motor 33, a positioning transmission mechanism 34 and a material discharge chute 35;

[0055] A swivel support 321 and a positioning shaft 322;

[0056] Positioning driving wheel 341, positioning driven wheel 342 and positioning synchronous belt 343;

[0057] A cutting baffle 41 and a cutting assembly 42;

[0058] A cutting cam 421, a lifting rod 422, a lifting spring 423 and a cutting tool 424;

[0059] A driving spindle 51, a material pushing reduction box 52, a material pushing transmission mechanism 53 and a crank rocker mechanism 54;

[0060] Main drive motor 511;

[0061] A material pushing driving wheel 531, a material pushing driven wheel 532, a material pushing synchronous belt 533, a material pushing tensioning wheel 534, a tensioning fixing block 535 and a tensioning support plate 536;

[0062] A push crank 541, a push connecting rod 542, a push slider 543, a push rail 544 and a push pin 545;

[0063] A material blocking support 71, a driving shaft 72, a driven shaft 73, a driving gear 74, a driven gear 75, a driving roller 76 and a material blocking block 77;

[0064] The base plate 81 , the step support 82 and the height adjustment block 83 are fixed. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0067] The present invention provides a shell-type workpiece cutting device, such as the attached Figure 1 and 2 As shown, it includes a feeding device 1, a clamping device 2, a positioning device 3, a cutting device 4 and a pushing device 5.

[0068] The feeding device 1 is used to transport the workpiece 6 to be cut to the clamping position. The feeding device 1 includes a feeding drive motor, a feeding active wheel, a feeding driven wheel, and a feeding synchronous belt wound between the feeding active wheel and the feeding driven wheel. Protective plates are fixed on the two opposite sides of the upper layer of the feeding synchronous belt to prevent the threat caused by falling materials and improve production safety. As a preferred embodiment, the feeding device 1 includes two groups, which are symmetrically arranged on two opposite sides of the fixed frame 8. The racking position in the text specifically refers to the position where the feeding device 1 is aligned with the clamping device 2.

[0069] The clamping device 2 is used to clamp the workpiece 6 to be cut at the clamping position. The positioning device 3 is used to position the workpiece 6 to be cut so that the workpiece 6 to be cut is at the cutting position. The cutting device 4 is used to cut the workpiece 6 to be cut at the cutting position. The cutting device 4 is opposite to the clamping device 2. The pushing device 5 is used to push the workpiece 6 to be cut from the clamping position to the positioning device 3 before the cutting device 4 cuts, and is used to push the cut workpiece from the positioning device 3 after the cutting device 4 cuts.

[0070] During processing, the loading device 1 first transports the workpiece 6 to be cut to the clamping position, the clamping device 2 clamps the workpiece 6 to be cut at the clamping position, the pushing device 5 pushes the workpiece 6 to be cut from the clamping position to the positioning device 3, the positioning device 3 positions the workpiece 6 to be cut to ensure that the workpiece 6 to be cut is in the cutting position, the cutting device 4 cuts the workpiece 6 to be cut at the cutting position, and after cutting, the pushing device 5 pushes the cut workpiece from the positioning device 3.

[0071] During the entire cutting process, the actions of loading, clamping, positioning, cutting and unloading are carried out continuously, which reduces manual participation to a certain extent, reduces the processing errors caused by manual participation, saves time and effort in the operation process, and improves the processing quality and efficiency of shell-type workpieces.

[0072] As attached Figure 3 and 4 As shown, the pusher device 5 includes a driving spindle 51, a pusher reduction box 52 installed at one end of the driving spindle 51, at least one set of pusher transmission mechanisms 53 connected to the pusher reduction box 52, and at least one set of crank rocker mechanisms 54 connected to all the pusher transmission mechanisms 53. Among them, the driving spindle 51 is parallel to the feeding device 1, and the pusher reduction box 52 is a gear reduction box, which ensures that the driving spindle 51 and the crank rocker mechanism have a high transmission accuracy, so that the pusher pin 545 is accurately aligned with the positioning hole of the pusher device 5. As a preferred example, a set of pusher transmission mechanisms 53 are symmetrically arranged on both sides of the pusher reduction box 52, and a set of crank rocker mechanisms 54 are connected to the ends of the two sets of pusher transmission mechanisms 53, so as to achieve simultaneous pushing of two workpieces 6 to be cut, thereby improving processing efficiency.

[0073] It should be noted that a main driving motor 511 is installed at one end of the driving spindle 51 away from the pushing reduction box 52, so that the pushing device 5, the clamping device 2 and the cutting device share a set of driving devices, which is more energy-efficient and occupies less space.

[0074] As a preferred embodiment, the pusher transmission mechanism 53 is a belt transmission mechanism, which includes a pusher driving wheel 531 connected to the terminal output shaft of the pusher reduction box 52, a pusher driven wheel 532 connected to the crank rocker mechanism 54, a pusher synchronous belt 533 connected between the pusher driving wheel 531 and the pusher driven wheel 532, and a pusher tensioning wheel 534 abutting against the pusher synchronous belt 533. The setting of the pusher tensioning wheel 534 can keep the pusher synchronous belt 533 at the set tension force, thereby ensuring the efficient transmission of the pusher transmission mechanism 53. The pusher tensioning wheel 534 is mounted on a tensioning fixed block 535, the tensioning fixed block 535 is fixed on a tensioning support plate 536, and the tensioning support plate 536 is fixed on a stepped support 82. Specifically, the tensioning fixed block 535 is connected to the tensioning support plate 536 by an adjusting screw. When the adjusting screw is rotated, the tensioning fixed block 535 drives the pusher tensioning wheel 534 to move along the tensioning support plate 536 to adjust the position of the pusher tensioning wheel 534, thereby achieving flexible adjustment of the tensioning force of the pusher synchronous belt 533.

[0075] As a preferred embodiment, the crank-rocker mechanism 54 includes a pusher crank 541 coaxially connected to the pusher driven wheel 532, a pusher connecting rod 542 hinged to the pusher crank 541, a pusher slider 543 hingedly connected to one end of the pusher connecting rod 542 away from the pusher crank 541, and a pusher slide rail 544 slidably matched with the pusher slider 543; the pusher slider 543 is fixed with a pusher ejector pin 545. The pusher crank 541 is disc-shaped, and the pusher connecting rod 542 is set away from the center line of the pusher crank 541. The crank-rocker mechanism 54 converts the circular motion of the pusher crank 541 into the linear motion of the pusher slider 543. Preferably, the moving trajectory of the pusher slider 543 is parallel to the center line of the positioning shaft 322. The pusher slide rail 544 is fixed on the stepped support 82.

[0076] When the driving spindle 51 rotates, the torque of the driving spindle 51 is transmitted to the pushing active wheel 531 through the pushing reduction box 52, and then transmitted to the pushing driven wheel 532 by the pushing synchronous belt 533. The pushing driven wheel 532 drives the pushing crank 541 to rotate synchronously. The pushing crank 541 pushes the pushing slider 543 to make a linear motion along the pushing track through the pushing connecting rod 542, so that the pushing slider 543 drives the pushing ejector pin 545 to make a linear motion, so that the pushing ejector pin 545 is inserted into or disengaged from the positioning hole, and the workpiece is correspondingly installed in the positioning hole or disengaged from the positioning hole.

[0077] As attached Figure 5 As shown, the material clamping device 2 includes a material clamping fixed plate 21, a material clamping cam 22, a first clamping jaw 23, a second clamping jaw 24, a first shifting fork 25 and a second shifting fork 26; wherein the material clamping fixed plate 21 is fixedly mounted on the stepped support 82. The material clamping cam 22 is fixedly mounted on the driving spindle 51, so that the material clamping cam 22 rotates synchronously with the driving spindle 51. The material clamping cam 22 is disc-shaped, and a cam groove 221 is provided on one side of the material clamping cam 22. The first clamping jaw 23 and the second clamping jaw 24 are respectively slidably mounted on the bottom of the material clamping fixed plate 21. Specifically, a T-shaped slide rail is provided on the bottom side of the clamping and fixing plate 21, and a T-shaped slide groove is provided on the top of the first clamping jaw 23 and the second clamping jaw 24. The T-shaped slide rail and the T-shaped slide groove can be slidably matched, which can not only guide the first clamping jaw 23 and the second clamping jaw 24 to move closer to or separate from each other in a direction perpendicular to the feeding device 1, but also provide support force for the first clamping jaw 23 and the second clamping jaw 24 to overcome the gravity of the two clamping jaws, so that the two clamping jaws can be slidably hung on the bottom of the clamping and fixing plate 21.

[0078] Both the first fork 25 and the second fork 26 are V-shaped structures, that is, a V-shaped protrusion is formed in the middle section of the first fork 25 and the second fork 26. The opening sides of the V-shaped protrusions of the first fork 25 and the second fork 26 are opposite to each other, and the V-shaped protrusions of the first fork 25 and the second fork 26 are respectively hinged to the material clamping fixing plate 21 by means of a rotating shaft. One end of the first fork 25 is provided with a first roller and the other end is connected to the first clamping claw 23, and one end of the second fork 26 is provided with a second roller and the other end is connected to the second clamping claw 24. The first roller and the second roller are both embedded in the cam groove 221 of the material clamping cam 22.

[0079] When the driving spindle 51 rotates, the clamping cam 22 rotates synchronously with the driving spindle 51; when the first roller and the second roller are separated from each other in the cam groove 221, the first fork 25 and the second fork 26, one end away from the clamping cam 22, move closer to each other, the first clamping jaw 23 and the second clamping jaw 24 slide along the clamping fixing plate 21, and the two clamping jaws move closer to each other to clamp the workpiece 6 to be cut; when the first roller and the second roller are close to each other in the cam groove 221, the first fork 25 and the second fork 26, one end away from the clamping cam 22, move closer to each other, the first clamping jaw 23 and the second clamping jaw 24 slide along the clamping fixing plate 21, and the two clamping jaws separate from each other to release the workpiece 6 to be cut.

[0080] As attached Figure 6 As shown, the first clamping jaw 23 and the second clamping jaw 24 both include a clamping slide 231 that can slideably cooperate with the bottom of the clamping fixed plate 21, and a fixed clamping finger 232 is integrally provided at the end of the clamping slide 231. The fixed clamping finger 232 is specifically an L-shaped structure fixed to the bottom of the clamping slide 231 in an interference connection manner. The clamping slide 231 is hinged with a movable clamping finger 233, and a reset torsion spring 234 is provided between the clamping slide 231 and the movable clamping finger 233. Specifically, the clamping slide 231 is provided with a clamping finger groove, and a clamping finger rotation pin is provided in the clamping finger groove. The movable clamping finger 233 is provided on the clamping finger rotation pin. The reset torsion spring 234 is sleeved on the clamping finger rotation pin and its two torsion arms are respectively against the clamping finger groove and the movable clamping finger 233.

[0081] When the workpiece 6 to be cut enters between the fixed clamping finger 232 and the movable clamping finger 233, the reset torsion spring 234 is twisted, and the reset torsion spring 234 provides elastic force for the movable clamping finger 233, so that the fixed clamping finger 232 and the movable clamping finger 233 clamp the workpiece 6 to be cut. When the workpiece 6 to be cut is separated from the fixed clamping finger 232 and the movable clamping finger 233, the reset torsion spring 234 restores elastic deformation, assists the movable clamping finger 233 to automatically reset, and the operation is more convenient.

[0082] As attached Figure 7As shown, the cutting device 4 includes a fixed cutting baffle 41 and at least one group of cutting components 42 hinged to the cutting baffle 41, and all the cutting components 42 are arranged between the driving spindle 51 and the positioning device 3. Specifically, the cutting baffle 41 is vertically fixed to the end of the fixed bottom plate 81 away from the feeding device 1, and each group of cutting components 42 provides support. All the cutting components 42 are arranged between the driving spindle 51 and the positioning device 3, so that the cutting device 4 can achieve precise cutting. Specifically, the cutting baffle 41 is symmetrically provided with two groups of cutting components 42.

[0083] As a preferred embodiment, each cutting assembly 42 includes a cutting cam 421, a lifting rod 422, a lifting spring 423 and a cutting tool 424, and the cutting cam 421 is fixed to the driving spindle 51. Specifically, the driving spindle 51 is equipped with two cutting cams 421, and the outer contour curves of the two cutting cams 421 are arranged oppositely. One end of the lifting rod 422 is hinged to the cutting baffle 41 and the other end is provided with a cutting roller, and the cutting roller is against the cutting cam 421. The cutting baffle 41 is fixed with a fixing pin, and the lifting spring 423 is connected between the lifting rod 422 and the fixing pin. The lifting spring 423 is used to pull the lifting rod 422 to prevent the lifting rod 422 from swinging downward under the action of gravity and affecting the cutting accuracy. The lifting spring 423 can be a common cylindrical spring. The cutting tool 424 is fixed to the lifting rod 422, and the lifting rod 422 is provided with a quick-release knife seat. The cutting tool 424 is installed on the disassembly knife seat, which is convenient for quick replacement of the cutting tool 424. The cutting tool 424 is opposite to the positioning shaft 322 of the positioning device 3 , ensuring that the cutting tool 424 accurately cuts the workpiece 6 to be cut clamped by the positioning shaft 322 .

[0084] When the driving spindle 51 rotates, the cutting cam 421 rotates synchronously with the driving spindle 51. The cutting cam 421 pushes the lifting rod 422 through the cutting roller to overcome the elastic force of the lifting spring 423 and rotate downward, so that the lifting rod 422 drives the cutting tool 424 to move vertically downward, and cuts the workpiece 6 to be cut clamped by the positioning shaft 322; when the driving spindle 51 reverses, the thrust force between the cutting cam 421 and the cutting roller is less than the elastic force of the lifting spring 423, and the lifting spring 423 restores its elastic deformation. The lifting rod 422 drives the cutting tool 424 to move upward and away from the positioning shaft 322 according to the elastic force of the lifting spring 423 to complete the cutting.

[0085] As attached Figure 8As shown, the positioning device 3 includes a positioning bracket 31, at least one group of positioning rotary mechanisms 32 fixed to the positioning bracket 31, a positioning drive motor 33, and at least one group of positioning transmission mechanisms 33 connected between the positioning drive motor 33 and the positioning rotary mechanism 32. As a preferred embodiment, the positioning bracket 31 is fixed to one end of the fixed floor, and the positioning bracket 31 is specifically fixed with two groups of positioning rotary mechanisms 32, and each group of positioning rotary mechanisms 32 is correspondingly connected to a group of positioning transmission mechanisms 33. The two groups of positioning transmission mechanisms 33 share a set of positioning drive motors 33, which is more energy-saving, more compact in structure, and occupies less space.

[0086] The positioning rotary mechanism 32 includes a rotatable rotary support 321 and a positioning shaft 322 fixed to the rotary support 321; a positioning hole for clamping the workpiece 6 to be cut is formed at the center of the positioning shaft 322. Before the cutting device 4 cuts, one end of the workpiece 6 to be cut is inserted into the positioning hole; after the cutting is completed, the cut workpiece passes through the positioning hole under the push of the ejector pin 545 until it is completely ejected from the positioning hole.

[0087] The positioning transmission mechanism 33 includes a positioning driving wheel 331 connected to the output shaft of the positioning drive motor 33, a positioning driven wheel 332 coaxially fixedly connected to the rotary support 321, and a positioning synchronous belt 333 connected between the positioning driving wheel 331 and the positioning driven wheel 332. It should be noted that the positioning synchronous belts 333 of the two sets of positioning transmission mechanisms 33 are arranged in a V shape, which can not only ensure that the two sets of positioning transmission mechanisms 33 can transmit a larger torque, but also reduce the occupied space of the two sets of positioning transmission mechanisms 33, so that the structure of the entire positioning device 3 is more compact.

[0088] As attached Fig. 9 As shown, the cutting equipment for shell-type workpieces also includes a material blocking device 7 arranged on the feeding device 1. The material blocking device 7 is used to block the workpiece 6 to be cut from moving with the feeding device 1 when the workpiece 6 to be cut is conveyed to the clamping position, control the conveying amount of the feeding device 1, and avoid material accumulation to affect the cutting accuracy.

[0089] As a preferred embodiment, the material blocking device 7 includes a material blocking support 71, a driving shaft 72, a driven shaft 73, a driving gear 74, a driven gear 75, a driving roller 76 and a material blocking block 77, wherein the material blocking support 71 is fixed above the feeding device 1. The driving shaft 72 and the driven shaft 73 are parallel to each other, and both are arranged perpendicular to the feeding device 1, and both are rotatably arranged on the material blocking support 71. The driving gear 74 is fixed to the driving shaft 72, and the driving roller 76 is fixed to the end of the driving shaft 72 away from the driving gear 74, that is, the driving gear 74 and the driving roller 76 are respectively fixed to the two ends of the driving shaft 72. The driven gear 75 is fixed to the driven shaft 73, and the material blocking block 77 is fixed to the end of the driven shaft 73 away from the driven gear 75, that is, the driven gear 75 and the material blocking block 77 are respectively fixed to the two ends of the driven shaft 73. The driving gear 74 meshes with the driven gear 75, and both gears are spur gears. Specifically, the cross section of the stopper block 77 is waist-shaped, and is formed by two arc surfaces and two plane surfaces being alternately connected.

[0090] When the driving roller 76 abuts against the clamping device 2, the driving roller 76 drives the driving gear 74 to rotate through the driving shaft 72, and the driving gear 74 drives the blocking block 77 to rotate through the driven gear 75. When the long side of the blocking block 77 is perpendicular to the feeding device 1, the blocking block 77 reaches the blocking position, the blocking block 77 blocks the feeding channel of the feeding device 1, and the feeding device 1 stops feeding. On the contrary, when the long side of the blocking block 77 is parallel to the feeding device 1, the blocking block 77 reaches the material-release position, the feeding device 1 releases the stop, and the feeding device 1 feeds normally.

[0091] The cutting device for shell-type workpieces also includes a fixed frame 8, which includes a fixed base plate 81, and the fixed base plate 81 is supported by multiple supporting beams. The fixed base plate 81 is fixed with a stepped support 82, and the pusher device 5 and the clamping device 2 are fixed on the stepped support 82 to ensure that the driving spindle 51 keeps the feeding device 1 parallel. The support legs of the fixed frame 8 are provided with a height adjustment block 83, and the support legs are threadedly connected to the height adjustment block 83, so that the fixed frame 8 can adjust the length of the support legs at ground height to ensure that the feeding device 1 remains horizontal and prevent the workpiece 6 to be cut from rolling accidentally on the feeding device 1.

[0092] A material discharge chute 34 is provided below the positioning device 3 . The cutting equipment for shell-type workpieces also includes a material discharge device 9 . The material discharge device 9 is provided downstream of the positioning device 3 . The cut workpieces cut off by the cutting device 4 fall into the material discharge chute 34 and are then transported to the next process by the material discharge device 9 .

[0093] The present invention also provides a method for cutting shell-type workpieces, which is applied to the above-mentioned cutting equipment for shell-type workpieces, and the steps include: a loading device 1 transports the workpiece 6 to be cut to a clamping position, and a clamping device 2 clamps the workpiece 6 to be cut at the clamping position; a pushing device 5 pushes the workpiece 6 to be cut from the clamping position to a positioning device 3; the positioning device 3 positions the workpiece 6 to be cut so that the workpiece 6 to be cut is in a cutting position; the cutting device 4 cuts the workpiece 6 to be cut at the cutting position; the pushing device 5 pushes the cut workpiece from the positioning device 3; the loading, clamping, positioning, cutting and unloading actions are realized continuously, the degree of manual participation is reduced, and the processing quality and efficiency of shell-type workpieces can be improved.

[0094] The specific steps are as follows:

[0095] Step 1: The loading device 1 transports the workpiece 6 to be cut to the clamping position, at which time the workpiece 6 to be cut abuts against the stopper block 77 of the stopper device 7;

[0096] Step 2: The driving spindle 51 rotates, and the clamping cam 22 rotates synchronously with the driving spindle 51. The clamping cam 22 drives the first fork 25 and the second fork 26 to swing through the cam groove 221. The first clamping jaw 23 and the second clamping jaw 24 slide along the clamping fixing plate 21 to the front end of the blocking device 7 and clamp the workpiece 6 to be cut. At the same time, the first clamping jaw 23 and the second clamping jaw 24 drive the driving roller 76 to rotate, and the driving roller 76 drives the driving gear 74 to rotate through the driving shaft 72. The driving gear 74 drives the blocking block 77 to rotate through the driven gear 75. The blocking block 77 blocks the feeding channel of the feeding device 1.

[0097] Step 3: The workpiece 6 to be cut enters between the fixed clamping finger 232 and the movable clamping finger 233, the reset torsion spring 234 is twisted, and the fixed clamping finger 232 and the movable clamping finger 233 clamp the workpiece 6 to be cut;

[0098] Step 4: The driving spindle 51 drives the clamping cam 22 to rotate and reset, and at the same time, the driving spindle 51 is transmitted to the pushing driving wheel 531 through the pushing reduction box 52, and then transmitted to the pushing driven wheel 532 by the pushing synchronous belt 533. The pushing driven wheel 532 drives the pushing crank 541 to rotate synchronously. The pushing crank 541 pushes the pushing slider 543 to make a linear motion along the pushing track through the pushing connecting rod 542, and the pushing ejector pin 545 pushes the workpiece 6 to be cut clamped by the first clamp 23 and the second clamp 24 into the positioning hole of the positioning shaft 322;

[0099] Step 5: The positioning drive motor 33 drives the positioning active wheel 331 to rotate, the positioning active wheel 331 drives the positioning driven wheel 332 to rotate through the positioning synchronous belt 333, the positioning driven wheel 332 drives the positioning shaft 322 to rotate through the rotary support 321, and the positioning shaft 322 drives the workpiece 6 to be cut to rotate;

[0100] Step 6: The driving spindle 51 drives the cutting cam 421 to rotate synchronously. The cutting cam 421 drives the lifting rod 422 to rotate through the cutting roller. The lifting rod 422 drives the cutting tool 424 to move down to cut the workpiece 6 to be cut clamped by the positioning shaft 322. At the same time, the driving spindle 51 drives the pushing crank 541 to rotate through the pushing reduction box 52 and the pushing transmission mechanism 53. The pushing crank 541 drives the pushing slider 543 to move linearly along the pushing track through the pushing connecting rod 542. The pushing pin 545 pushes the cutting workpiece out of the positioning hole, and the cutting workpiece falls into the discharging device 9.

[0101] Repeat steps 1 to 5 to achieve continuous cutting of the workpiece.

[0102] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0103] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A cutting device for shell-type workpieces, characterized in that: It comprises a feeding device (1), a clamping device (2), a positioning device (3), a cutting device (4) and a pushing device (5); The loading device (1) is used to transport the workpiece (6) to be cut to a clamping position; The clamping device (2) is used to clamp the workpiece (6) to be cut at the clamping position; The positioning device (3) is used to position the workpiece (6) to be cut so that the workpiece (6) to be cut is in a cutting position; The cutting device (4) is used to cut the workpiece (6) to be cut at the cutting position; The pushing device (5) is used to push the workpiece (6) to be cut from the clamping position to the positioning device (3) before the cutting device (4) cuts, and is used to push the cut workpiece from the positioning device (3) after the cutting device (4) cuts.

2. The shell-type workpiece cutting device according to claim 1, characterized in that: The pusher device (5) comprises a driving spindle (51), a pusher reduction box (52) mounted on one end of the driving spindle (51), at least one pusher transmission mechanism (53) connected to the pusher reduction box (52), and at least one crank rocker mechanism (54) connected to all of the pusher transmission mechanisms (53); The pusher transmission mechanism (53) comprises a pusher driving wheel (531) connected to the terminal output shaft of the pusher reduction box (52), a pusher driven wheel (532) connected to the crank rocker mechanism (54), a pusher timing belt (533) connected between the pusher driving wheel (531) and the pusher driven wheel (532), and a pusher tensioning wheel (534) abutting against the pusher timing belt (533); The crank rocker mechanism (54) comprises a pusher crank (541) coaxially connected to the pusher driven wheel (532), a pusher connecting rod (542) hingedly connected to the pusher crank (541), a pusher slider (543) hingedly connected to one end of the pusher connecting rod (542) away from the pusher crank (541), and a pusher slide rail (544) slidably matched with the pusher slider (543); the pusher slider (543) is fixedly provided with a pusher ejector pin (545).

3. The shell-type workpiece cutting device according to claim 2, characterized in that: The material clamping device (2) comprises a fixed material clamping plate (21), a material clamping cam (22) fixed to the driving spindle (51), a first clamping claw (23) and a second clamping claw (24) slidably disposed at the bottom of the material clamping plate (21), and a first shift fork (25) and a second shift fork (26) respectively hinged to the material clamping plate (21); The clamping cam (22) is formed with a cam groove (221); a first roller provided at one end of the first shift fork (25) is embedded in the cam groove (221) and the other end is connected to the first clamping claw (23); a second roller provided at one end of the second shift fork (26) is embedded in the cam groove (221) and the other end is connected to the second clamping claw (24).

4. The shell-type workpiece cutting device according to claim 3, characterized in that: The first clamping jaw (23) and the second clamping jaw (24) each comprise a material clamping slide seat (231) slidably matched with the bottom of the material clamping fixing plate (21), and a fixed clamping finger (232) is integrally provided at the end of the material clamping slide seat (231); a movable clamping finger (233) is hingedly connected to the material clamping slide seat (231), and a return torsion spring (234) is provided between the material clamping slide seat (231) and the movable clamping finger (233); The reset torsion spring (234) is used to provide elastic force for the movable clamping finger (233) when the workpiece (6) to be cut enters between the fixed clamping finger (232) and the movable clamping finger (233), so that the fixed clamping finger (232) and the movable clamping finger (233) clamp the workpiece (6) to be cut, and is used to assist the movable clamping finger (233) in resetting when the workpiece (6) to be cut is separated from the fixed clamping finger (232) and the movable clamping finger (233).

5. The shell-type workpiece cutting device according to claim 2, characterized in that: The cutting device (4) comprises a fixedly arranged cutting baffle (41) and at least one set of cutting components (42) hinged to the cutting baffle (41), and all of the cutting components (42) are arranged between the driving spindle (51) and the positioning device (3); Each group of the cutting components (42) comprises a cutting cam (421) fixed to the driving spindle (51), a lifting rod (422) with one end hinged to the cutting baffle (41) and the other end abutting against the cutting cam (421) via a cutting roller, a lifting spring (423) connected between the lifting rod (422) and a fixing pin provided on the cutting baffle (41), and a cutting tool (424) fixed to the lifting rod (422) and opposite to the positioning device (3).

6. The shell-type workpiece cutting device according to claim 2, characterized in that: The positioning device (3) comprises a positioning bracket (31), at least one positioning rotary mechanism (32) fixed to the positioning bracket (31), a positioning drive motor (33), and at least one positioning transmission mechanism (33) connected between the positioning drive motor (33) and the positioning rotary mechanism (32); The positioning and rotating mechanism (32) comprises a rotatable rotating support (321) and a positioning shaft (322) fixed to the rotating support (321); a positioning hole for clamping a workpiece (6) to be cut is formed at the center of the positioning shaft (322); The positioning transmission mechanism (33) comprises a positioning driving wheel (331) connected to the output shaft of the positioning drive motor (33), a positioning driven wheel (332) coaxially fixedly connected to the rotary support (321), and a positioning synchronous belt (333) connected between the positioning driving wheel (331) and the positioning driven wheel (332).

7. The shell-like workpiece cutting device according to any one of claims 1 to 6, characterized in that: It also includes a material blocking device (7) disposed on the feeding device (1), wherein the material blocking device (7) is used to block the workpiece (6) to be cut from moving along with the feeding device (1) when the workpiece (6) to be cut is transported to the clamping position.

8. The shell-type workpiece cutting device according to claim 7, characterized in that: The material blocking device (7) comprises a fixed material blocking support (71), a driving shaft (72) and a driven shaft (73) rotatably mounted on the material blocking support (71), a driving gear (74) fixed to the driving shaft (72), a driven gear (75) fixed to the driven shaft (73) and meshing with the driving gear (74), a driving roller (76) fixed to one end of the driving shaft (72) away from the driving gear (74), and a material blocking block (77) fixed to one end of the driven shaft (73) away from the driven gear (75); When the driving roller (76) abuts against the clamping device (2), the driving roller (76) drives the driving gear (74) to rotate via the driving shaft (72), and the driving gear (74) drives the blocking block (77) to rotate via the driven gear (75) until the blocking block (77) blocks the feeding channel of the feeding device (1).

9. The shell-like workpiece cutting device according to any one of claims 1 to 6, characterized in that: It also includes a fixed frame (8), the fixed frame (8) includes a fixed base plate (81), the fixed base plate (81) is fixedly provided with a stepped support (82), and the pushing device (5) and the clamping device (2) are both fixedly provided on the stepped support (82); The support legs of the fixed frame (8) are provided with height adjustment blocks (83), and the support legs are threadedly connected to the height adjustment blocks (83).

10. A method for cutting a shell-like workpiece, characterized in that: The cutting device for a shell-like workpiece according to any one of claims 1 to 9 comprises the following steps: The loading device transports the workpiece to be cut to the clamping position; The clamping device clamps the workpiece to be cut at the clamping position; The pushing device pushes the workpiece to be cut from the clamping position to the positioning device; The positioning device positions the workpiece to be cut so that the workpiece to be cut is in a cutting position; The cutting device cuts the workpiece to be cut at the cutting position; The pusher device pushes the cut workpiece out from the positioning device.

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