Automatic face milling and piercing apparatus

Abstract

The application discloses an automatic milling and punching device, which comprises a milling device, a punching device, a milling conveying module, a punching conveying module and a conveying device. The milling conveying module can reciprocate between the milling device and the conveying device, and is used for conveying the workpiece on the conveying device to the milling device. The milling device is used for milling the workpiece conveyed by the milling conveying module. The milling conveying module is also used for conveying the workpiece with completed milling back to the conveying device. The punching conveying module can reciprocate between the punching device and the conveying device, and is used for conveying the workpiece with completed milling on the conveying device to the punching device. The punching device is used for punching the workpiece conveyed by the punching conveying module. The punching conveying module is also used for conveying the workpiece with completed punching back to the conveying device. The application can realize full-automatic milling and punching operation of the workpiece, improve production efficiency, simplify processing technology and save labor cost.

Description

Technical Field

[0001] This invention relates to the field of workpiece processing equipment technology, and in particular to an automatic milling and punching equipment. Background Technology

[0002] In workpiece manufacturing, various processing steps are required to meet the diverse functional needs of the workpiece, with punching being a common operation. For some workpieces with specific applications, not only are through holes machined, but steps are also machined around the through holes. (See the attached diagram in the instruction manual.) Figure 1 As shown, the workpiece 100 is an explosion-proof aluminum shell with an explosion-proof groove on one side. The explosion-proof groove has a through hole 102 in the middle and a step 101 is formed around the outer periphery of the through hole. When the electrolytic capacitor expands due to overload or other reasons, the explosion-proof groove will crack, which can release heat and high pressure in time, so as not to damage the surrounding electrical components and improve safety performance.

[0003] Currently, the processing of this type of workpiece is generally completed on a stamping press. Because the workpiece has a certain wall thickness and requires the machining of steps, stamping requires multiple processes, namely repeated punching and flattening. Each process requires manual handling of the workpiece, making the process very inconvenient and inefficient. Therefore, it is necessary to improve the existing technology to overcome its shortcomings. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide an automatic milling and punching device to overcome the shortcomings of the prior art in terms of cumbersome workpiece processing procedures, high labor costs and low efficiency.

[0005] The technical solution adopted by this invention to solve its technical problem is: an automatic milling and punching device, comprising: a milling device, a punching device, a milling transport module, a punching transport module, and a conveying device for sequentially transferring workpieces between the milling transport module and the punching transport module; the milling transport module is capable of reciprocating between the milling device and the conveying device, and is used to transport workpieces from the conveying device to the milling device; the milling device is used to mill the workpieces transported to the position by the milling transport module, and the milling transport module is also used to transport the milled workpieces back to the conveying device; the punching transport module is capable of reciprocating between the punching device and the conveying device, and is used to transport milled workpieces from the conveying device to the punching device; the punching device is used to punch the workpieces transported to the position by the punching transport module, and the punching transport module is also used to transport the punched workpieces back to the conveying device.

[0006] As a further improvement of the present invention, the milling device includes a milling platform for receiving workpieces transported by the milling transport module, a milling positioning mechanism for positioning the workpieces on the milling platform, and a milling module. The milling module includes a milling cutter module, an X-axis drive module, a Y-axis drive module, and a Z-axis drive module. The X-axis drive module, the Y-axis drive module, and the Z-axis drive module are used to jointly drive the milling cutter module to perform three-dimensional motion to mill the workpieces positioned on the milling platform.

[0007] As a further improvement of the present invention, the milling device further includes a milling support, and the milling platform is fixed to the top of the milling support; the milling positioning mechanism includes two milling positioning cylinders fixed to the milling support and two positioning plates slidably mounted on the milling support and distributed on the outer sides of both ends of the milling platform, the two positioning plates being respectively connected to the two milling positioning cylinders, and the two milling positioning cylinders being used to drive the two positioning plates to move closer to the middle, so that the two positioning plates are inserted into both ends of the workpiece on the milling platform;

[0008] The milling positioning mechanism further includes a milling side push cylinder disposed on one side of the milling platform and a milling positioning block connected to the milling side push cylinder. The milling side push cylinder is used to drive the milling positioning block to abut against one side of the workpiece on the milling platform.

[0009] As a further improvement of the present invention, the automatic milling and punching equipment also includes a cooling device, which includes a cooling water tank containing coolant, a water outlet pipe installed on the milling module, and a water pump for pumping the coolant inside the cooling water tank into the water outlet pipe. A filter screen is installed on the top of the cooling water tank, and a return channel is provided above the filter screen. The coolant sprayed from the water outlet pipe toward the milling module can return to the cooling water tank through the return channel and the filter screen.

[0010] As a further improvement of the present invention, the punching device includes a punching support, a punching positioning mechanism, and a punching module. The top of the punching support is provided with a punching platform, which is used to receive the workpiece transported by the punching transport module. The punching positioning mechanism is used to position the workpiece on the punching platform. The punching module includes a support plate, a push rod slidably inserted into the support plate, a punching drive device connected to the push rod, a transmission assembly movably disposed on the support plate, and an upper cutter and a lower cutter distributed on both sides of the part of the workpiece to be punched. The punching drive device is used to drive the push rod to move and push the upper cutter to cooperate with the lower cutter to punch the workpiece through the transmission assembly.

[0011] As a further improvement of the present invention, the punching module is slidably mounted on the punching support, and the punching support is fixed with a push-in driving device connected to the punching module. The push-in driving device is used to drive the punching module to move toward the workpiece, and to make the support plate and the push rod, the transmission assembly and the upper cutter on it extend into the workpiece.

[0012] The punching module also includes a mounting plate, and the lower cutter is fixed on the mounting plate; a gap is left between the mounting plate and the support plate so that the part of the workpiece to be punched can be inserted, so that the part of the workpiece to be punched can be located between the upper cutter and the lower cutter.

[0013] As a further improvement of the present invention, the transmission assembly includes a pressure plate and an upper tool holder. The upper tool holder is fixedly connected to the pressure plate, and the upper tool is fixed on the upper tool holder. When the push rod is extended by the punching drive device, the push rod can apply pressure to the pressure plate and drive the upper tool holder and the upper tool to move toward the lower tool. A return spring is installed between the pressure plate and the support plate. The return spring is used to apply an elastic force to the pressure plate in the direction opposite to the upper tool holder. A floating stripper block and a stripper spring for applying an elastic force to the stripper block in the direction of the lower tool are installed on the upper tool holder. The stripper block is used to press the workpiece when the upper tool is reset.

[0014] The pressure plate has a roller on its upper shaft, and the push rod has an inclined surface. The roller makes rolling contact with the inclined surface, and the push rod applies pressure to the pressure plate by cooperating with the roller on the inclined surface.

[0015] As a further improvement of the present invention, the punching positioning mechanism includes a first positioning cylinder arranged on one side of the punching platform, a first push block mounted on the first positioning cylinder, and a first positioning block fixed on the other side of the punching platform. The first positioning cylinder is used to drive the first push block to push the workpiece on the punching platform to abut against the first positioning block.

[0016] The punching positioning mechanism further includes a second positioning cylinder arranged on the other side of the punching platform and a second push block installed on the second positioning cylinder. The mounting plate is provided with a second positioning block, and the second positioning cylinder is used to drive the second push block to push the workpiece on the punching platform to abut against the second positioning block.

[0017] As a further improvement of the present invention, the conveying device includes a milling feed line, a milling punch transfer line and a punch unloading line. The milling transport module includes two transport suction cup groups, both of which can perform lifting and lateral movements. One of the transport suction cup groups is used to adsorb the workpiece on the milling feed line and move it to the milling device. The other transport suction cup group is used to adsorb the workpiece milled by the milling device and move it to the milling punch transfer line.

[0018] The punching and transporting module has the same structure as the milling and transporting module. One of the transporting suction cups in the punching and transporting module is used to pick up the workpiece on the milling and punching conveyor line and move it to the punching device. The other transporting suction cup in the punching and transporting module is used to pick up the workpiece punched by the punching device and move it to the punching and unloading conveyor line.

[0019] As a further improvement of the present invention, the conveying device further includes a workpiece loading flow line disposed upstream of the milling loading flow line and a workpiece unloading flow line disposed downstream of the punching unloading flow line. The automatic milling and punching equipment further includes a loading transfer module and an unloading transfer module. The loading transfer module is capable of reciprocating between the workpiece loading flow line and the milling loading flow line, and is used to transport the workpiece conveyed on the workpiece loading flow line to the milling loading flow line. The unloading transfer module is capable of reciprocating between the punching unloading flow line and the workpiece unloading flow line, and is used to transport the workpiece conveyed on the punching unloading flow line to the workpiece unloading flow line.

[0020] The beneficial effects of this invention are as follows: This invention provides an automatic milling and punching equipment. By placing the workpiece into a conveying device, the workpiece is automatically transported to a milling device for milling, and then automatically transported to a punching device for punching. Finally, the finished product flows out, realizing fully automatic milling and punching operations, greatly improving production efficiency, simplifying the processing technology, and saving labor costs. At the same time, when using this technical solution to mill and punch workpieces, the workpiece can be easily clamped and positioned, the milling and punching effects are good, it is not easy to deform, and the processing accuracy and quality can be guaranteed. Attached Figure Description

[0021] Figure 1 A 3D view of the workpiece after machining;

[0022] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0023] Figure 3 This is a perspective view of the automatic milling and punching equipment of the present invention;

[0024] Figure 4This is a perspective view of the workpiece loading flow line of the automatic milling and punching equipment of the present invention;

[0025] Figure 5 This is a perspective view of the loading and transfer module of the automatic milling and punching equipment of the present invention;

[0026] Figure 6 This is a perspective view of the milling and punching flow lines of the automatic milling and punching equipment of the present invention.

[0027] Figure 7 This is a perspective view of the milling and handling module of the automatic milling and punching equipment of the present invention;

[0028] Figure 8 This is a perspective view of the milling module of the automatic milling and punching equipment of the present invention;

[0029] Figure 9 This is a perspective view of the milling positioning mechanism and cooling device of the automatic milling and punching equipment of the present invention;

[0030] Figure 10 This is a perspective view of the punching device of the automatic milling and punching equipment of the present invention;

[0031] Figure 11 For the present invention Figure 10 Enlarged view of B in the middle;

[0032] Figure 12 This is a perspective view of the punching module of the automatic milling and punching equipment of the present invention;

[0033] Figure 13 This is a cross-sectional view of the punching module of the automatic milling and punching equipment of the present invention;

[0034] Figure 14 For the present invention Figure 13 A magnified view of C.

[0035] Referring to the accompanying drawings, the following explanations are provided:

[0036] 1. Milling device; 11. Milling platform; 12. Milling cutter module; 13. X-axis drive module; 14. Y-axis drive module; 15. Z-axis drive module; 16. Milling support; 17. Milling positioning cylinder; 18. Positioning plate; 19. Milling side push cylinder; 110. Milling positioning block; 111. Tool setter; 2. Punching device; 21. Punching support; 211. Punching platform; 22. Punching positioning mechanism; 221. First positioning cylinder; 222. First push block; 22 3. First positioning block; 224. Second positioning cylinder; 225. Second push block; 23. Punching module; 231. Bearing plate; 2311. Third positioning block; 232. Push rod; 2321. Inclined surface; 233. Punching drive device; 234. Transmission assembly; 2341. Pressure plate; 2342. Upper knife holder; 2343. Roller; 2344. Guide post; 2345. Return spring; 2346. Stripping block; 2347. Stripping spring; 235. Upper knife; 236. Lower... 237. Tool; 2371. Mounting plate; 2371. Second positioning block; 238. Lower tool holder; 239. Cylinder fixing plate; 2310. Guide block; 24. Push-in drive device; 3. Milling surface handling module; 31. Handling suction cup assembly; 32. Handling linear module; 33. Handling lifting cylinder; 34. Bracket; 35. Pick-up and unplacing cylinder; 4. Punching handling module; 5. Conveying device; 51. Milling surface loading flow line; 52. Milling surface punching flow line; 53. Punching unloading flow line; 54. Workpiece 541. Loading flow line; 542. Synchronous belt flow line; 543. Width adjustment mechanism; 544. Workpiece positioning block; 55. Workpiece unloading flow line; 6. Cooling device; 61. Cooling water tank; 62. Water outlet pipe; 63. Filter screen; 64. Return channel; 7. Loading transfer module; 71. Transfer linear module; 72. Transfer lifting cylinder; 73. Rotary cylinder; 74. Transfer suction cup assembly; 8. Unloading transfer module; 9. Frame; 100. Workpiece; 101. Step; 102. Through hole. Detailed Implementation

[0037] The preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] The present invention provides an automatic milling and punching device, the purpose of which is to achieve fully automatic machining of through holes 102 of the required size and steps 101 distributed around the outer periphery of the through holes 102 on the side wall of the workpiece 100.

[0039] like Figure 1 and Figure 2As shown, in this embodiment, the workpiece 100 is a rectangular thin-walled metal tube, and the part of the workpiece 100 to be punched is located on one side wall. It should be noted that although the workpiece 100 in this embodiment is a rectangular thin-walled metal tube, it does not mean that the present invention is limited to this specific implementation. Without departing from the scope of the technical solution of the present invention, many possible changes and modifications can be made to the technical solution of the present invention, or equivalent embodiments with equivalent changes can be modified to clamp and position the same type of workpiece.

[0040] See Figures 1 to 14 The automatic milling and punching equipment of the present invention includes: a milling device 1, a punching device 2, a milling conveying module 3, a punching conveying module 4, a conveying device 5, a loading transfer module 7, a unloading transfer module 8, and a frame 9. Figure 3 As shown, the directions of the long side, wide side, and high side of the frame 9 are defined as the X-axis, Y-axis, and Z-axis, respectively. The loading transfer module 7, milling transport module 3, punching transport module 4, and unloading transfer module 8 are sequentially and spaced apart on the frame 9 along the X-axis. The milling device 1 and the punching device 2 are also installed on the frame 9, with the milling device 1 arranged next to the milling transport module 3 and the punching device 2 arranged next to the punching transport module 4. The conveying device 5 is also installed on the frame 9 and passes through the loading transfer module 7, milling transport module 3, punching transport module 4, and unloading transfer module 8. The conveying device 5 is used to sequentially transfer the workpiece 100 between the loading transfer module 7, milling transport module 3, punching transport module 4, and unloading transfer module 8.

[0041] Furthermore, the milling and conveying module 3 can reciprocate between the milling device 1 and the conveying device 5 to transport the workpiece 100 from the conveying device 5 to the milling device 1. The milling device 1 is used to mill the workpiece 100 transported by the milling and conveying module 3 to create grooves on the sidewall of the workpiece 100. In addition, the milling and conveying module 3 is also used to transport the milled workpiece 100 back to the conveying device 5. The punching and conveying module 4 can reciprocate between the punching device 2 and the conveying device 5 to transport the milled workpiece 100 from the conveying device 5 to the punching device 2. The punching device 2 is used to punch holes in the workpiece 100 transported by the punching and conveying module 4. The punched hole is located in the groove of the workpiece 100, and the size of the punched through hole 102 is smaller than the size of the groove, thereby forming a step 101 around the outer circumference of the through hole 102. In addition, the punching and handling module 4 is also used to transport the punched workpiece 100 back to the conveying device 5, and the conveying device 5 transports the processed workpiece 100 for unloading.

[0042] As can be seen, the automatic milling and punching equipment of the present invention puts the workpiece 100 to be processed into the conveying device 5, the workpiece 100 is automatically transported to the milling device 1 for milling processing, and then automatically transported to the punching device 2 for punching processing, and finally the finished product flows out, realizing the fully automatic milling and punching operation of the workpiece 100, which greatly improves production efficiency, simplifies the processing technology of the workpiece 100, saves labor costs, and also reduces processing costs compared with traditional processes.

[0043] See Figure 3 , Figure 4 and Figure 6 The conveying device 5 includes a milling surface loading flow line 51, a milling surface punching flow line 52, a punching unloading flow line 53, a workpiece loading flow line 54, and a workpiece unloading flow line 55, all arranged along the X-axis.

[0044] The workpiece loading flow line 54 is located upstream of the milling surface loading flow line 51. For example... Figure 3 As shown, the workpiece loading flow line 54 includes a width adjustment mechanism 542 and two synchronous belt flow lines 541 arranged along the X-axis. One synchronous belt flow line 541 is fixedly mounted on the frame 9, and the other synchronous belt flow line 541 is slidably mounted on the frame 9 and connected to the width adjustment mechanism 542. By operating the width adjustment mechanism 542, the corresponding synchronous belt flow line 541 is driven to move, thereby changing the distance between the two synchronous belt flow lines 541, so as to be applicable to workpieces 100 of different lengths.

[0045] Optionally, the width adjustment mechanism 542 can be a hand-cranked lead screw sub-module.

[0046] Furthermore, on each synchronous belt streamline 541, multiple workpiece positioning blocks 543 are installed at equal intervals along the X-axis, and the workpiece 100 is placed between two adjacent workpiece positioning blocks 543 along the Y-axis.

[0047] Optionally, the workpiece 100 can be placed on the synchronous belt streamline 541 by manual labor or a robotic arm.

[0048] See Figure 5 The loading transfer module 7 can reciprocate between the workpiece loading flow line 54 and the milling surface loading flow line 51, and is used to transport the workpiece 100 conveyed on the workpiece loading flow line 54 to the milling surface loading flow line 51. The loading transfer module 7 includes a transfer linear module 71 mounted on the frame 9 along the Y-axis, a transfer lifting cylinder 72 mounted on the transfer linear module 71, a rotary cylinder 73 driven by the transfer lifting cylinder 72 to perform lifting motion, and a transfer suction cup assembly 74 connected to the rotary cylinder 73.

[0049] After the workpiece loading flow line 54 delivers the workpiece 100 to its position, the transfer linear module 71 drives the transfer lifting cylinder 72, the rotary cylinder 73, and the transfer suction cup assembly 74 to reach directly above the workpiece 100. The transfer lifting cylinder 72 drives the rotary cylinder 73 and the transfer suction cup assembly 74 to descend, and the transfer suction cup assembly 74 picks up the workpiece 100. Then, it is lifted and moved above the milling surface loading flow line 51. The rotary cylinder 73 drives the transfer suction cup assembly 74 and the workpiece 100 to rotate 90°, so that the workpiece 100 is distributed along the X-axis. The transfer lifting cylinder 72 then drives the rotary cylinder 73 and the transfer suction cup assembly 74 to descend, placing the workpiece 100 on the milling surface loading flow line 51.

[0050] See Figure 3 and Figure 6 The milling surface loading streamline 51, the milling surface punching flow line 52, and the punching unloading streamline 53 can all be, but are not limited to, flat belt streamlines. The milling surface loading streamline 51 and the punching unloading streamline 53 are distributed on the outer side, while the milling surface punching flow line 52 is distributed on the inner side.

[0051] See Figure 7 The milling and conveying module 3 includes two conveying suction cup groups 31, both of which can perform lifting and lateral movements. One conveying suction cup group 31 is used to pick up the workpiece 100 conveyed to the milling feed line 51 and move it to place on the milling device 1. The other conveying suction cup group 31 is used to pick up the workpiece 100 that has been milled by the milling device 1 and move it to place on the milling and punching conveyor line 52.

[0052] During operation, the right-side suction cup assembly 31 (with) Figure 7 (The orientation shown is for reference) A workpiece 100 is adsorbed from the milling feed line 51 and moved to the milling device 1. The left-side transfer suction cup group 31 adsorbs the milled workpiece 100 and removes it from the milling device 1. Then, the right-side transfer suction cup group 31 places the workpiece 100 onto the milling device 1. Afterward, the left-side transfer suction cup group 31 places the milled workpiece 100 onto the milling and punching transfer line 52. The milled workpiece 100 is then transported by the milling and punching transfer line 52 to the punching device 2, and this process is repeated. It can be seen that the present invention can further improve work efficiency by adopting the above-mentioned handling and transfer methods.

[0053] Continue reading Figure 7The milling and conveying module 3 also includes a conveying linear module 32 mounted on the frame 9 along the Y-axis, a vertical plate fixed on the conveying linear module 32, a conveying lifting cylinder 33 fixed on the vertical plate, a bracket 34 slidably mounted on the vertical plate along the Z-axis, and two pick-and-place cylinders 35 mounted on the bracket 34. The conveying lifting cylinder 33 is connected to the bracket 34 and is used to drive the bracket 34 to perform lifting and lowering movements. Two conveying suction cup assemblies 31 are respectively fixedly connected to the two pick-and-place cylinders 35. Under the joint drive of the conveying linear module 32, the conveying lifting cylinder 33, and the pick-and-place cylinders 35, the lifting and lowering and lateral (i.e., Y-axis) movements of the two conveying suction cup assemblies 31 are realized to perform automatic pick-and-place operations.

[0054] See Figure 8 and Figure 9 The milling device 1 includes a milling platform 11 for receiving the workpiece 100 transported by the milling transport module 3, a milling positioning mechanism for positioning the workpiece 100 on the milling platform 11, and a milling module. The milling module includes a milling cutter module 12, an X-axis drive module 13, a Y-axis drive module 14, and a Z-axis drive module 15. The X-axis drive module 13, the Y-axis drive module 14, and the Z-axis drive module 15 are used to jointly drive the milling cutter module 12 to perform three-dimensional motion in order to mill the workpiece 100 positioned on the milling platform 11.

[0055] Optionally, the X-axis drive module 13, Y-axis drive module 14, Z-axis drive module 15, transport linear module 32, and transfer linear module 71 in this invention can be any one of a ball screw linear module, a synchronous pulley linear module, and a linear motor module. In this embodiment, a ball screw linear module is preferred.

[0056] See Figure 9 The milling device 1 also includes a milling support 16, and a milling platform 11 is fixed to the top of the milling support 16. The milling positioning mechanism includes two milling positioning cylinders 17 fixed on the milling support 16 and two positioning plates 18 slidably mounted on the milling support 16 along the X-axis and distributed on the outer sides of both ends of the milling platform 11. The two positioning plates 18 are respectively connected to the two milling positioning cylinders 17. The two milling positioning cylinders 17 are used to drive the two positioning plates 18 to move towards the middle, so that the two positioning plates 18 are inserted into both ends of the workpiece 100 on the milling platform 11, thereby achieving preliminary positioning of the workpiece 100.

[0057] Meanwhile, the milling positioning mechanism also includes a milling side-push cylinder 19 disposed on one side of the milling platform 11 and a milling positioning block 110 connected to the milling side-push cylinder 19. When the two milling positioning cylinders 17 drive the two positioning plates 18 to move towards the middle and insert into both ends of the workpiece 100, the milling side-push cylinder 19 drives the milling positioning block 110 to abut against the side wall of the workpiece 100 and pushes the workpiece 100 so that the side wall of the workpiece 100 to be processed is tightly attached to the positioning plate 18, ensuring the stability of the milled surface.

[0058] In this invention, the milling cutter module 12 consists of a spindle motor and a single-edged mirror milling cutter connected to the spindle motor. A tool setting device 111 is fixed on one side of the milling platform 11. Each time the equipment is turned on or the single-edged mirror milling cutter is replaced, the single-edged mirror milling cutter finds its origin by touching the tool setting device 111 to ensure the accuracy of the milling surface.

[0059] In addition, the automatic milling and punching equipment of the present invention also includes a cooling device 6, which is used to cool down the workpiece 100 during milling and improve the milling effect. The cooling device 6 includes a cooling water tank 61 containing coolant, a water outlet pipe 62 installed on the milling module, and a water pump for pumping the coolant inside the cooling water tank 61 into the water outlet pipe 62. A filter screen 63 is installed on the top of the cooling water tank 61, and a return channel 64 made of protective sheet metal is provided above the filter screen 63. The coolant sprayed from the water outlet pipe 62 toward the milling cutter module 12 can return to the cooling water tank 61 through the return channel 64 and the filter screen 63, realizing the recycling of coolant.

[0060] See Figure 3 In this invention, the punching and transporting module 4 has the same structure as the milling and transporting module 3. One of the transporting suction cups 31 of the punching and transporting module 4 is used to adsorb the workpiece 100 transported to the milling and punching conveyor line 52 and move it to the punching device 2. The other transporting suction cup 31 of the punching and transporting module 4 is used to adsorb the workpiece 100 punched by the punching device 2 and move it to the punching and unloading conveyor line 53.

[0061] Furthermore, the workpiece unloading flow line 55 is located downstream of the punching unloading flow line 53. In this invention, the workpiece unloading flow line 55 has the same structure as the workpiece loading flow line 54, and the unloading transfer module 8 has the same structure as the loading transfer module 7. The unloading transfer module 8 can reciprocate between the punching unloading flow line 53 and the workpiece unloading flow line 55 to transport the workpiece 100 conveyed on the punching unloading flow line 53 to the workpiece unloading flow line 55, and the workpiece unloading flow line 55 conveys the processed finished product out of the equipment.

[0062] See Figures 10 to 14The punching device 2 includes a punching support 21, a punching positioning mechanism 22, and a punching module 23. The top of the punching support 21 is provided with a punching platform 211, which is used to receive the workpiece 100 transported by the punching transport module 4. The punching positioning mechanism 22 is used to position the workpiece 100 on the punching platform 211. The punching module 23 includes a support plate 231, a push rod 232 slidably inserted into the support plate 231, a punching drive device 233 connected to the push rod 232, a transmission assembly 234 movably disposed on the support plate 231, and an upper blade 235 and a lower blade 236 distributed on both sides of the part of the workpiece 100 to be punched. The punching drive device 233 is used to drive the push rod 232 to move, and pushes the upper blade 235 to cooperate with the lower blade 236 to punch the workpiece 100 through the transmission assembly 234. This invention uses this technical solution to punch holes in workpiece 100, which facilitates the clamping and positioning of workpiece 100. The workpiece 100 is not easily deformed by punching, which can ensure the accuracy and quality of punching. Moreover, the punching efficiency is high and the cost is low. It can be used in conjunction with milling device 1 to achieve automated processing of workpiece 100.

[0063] See Figure 10 A slide rail is fixed on the punching support 21 along the X-axis, and the punching module 23 is slidably mounted on the slide rail of the punching support 21. In addition, a push-in drive device 24 connected to the punching module 23 is fixed on the punching support 21. The push-in drive device 24 is used to drive the punching module 23 to move along the slide rail toward the workpiece 100, so that the support plate 231 and its push rod 232, transmission assembly 234 and upper cutter 235 extend into the workpiece 100, while the lower cutter 236 is located outside the workpiece 100.

[0064] See Figure 12 The punching module 23 also includes a mounting plate 237 and a cylinder fixing plate 239. The lower cutter 236 is fixed to the mounting plate 237 via a lower cutter holder 238, and the punching drive device 233 is fixed to the cylinder fixing plate 239. The mounting plate 237 and the cylinder fixing plate 239 are both distributed vertically and connected perpendicularly to each other. The bearing plate 231 is distributed horizontally and located at the right angle formed by the mounting plate 237 and the cylinder fixing plate 239, and the bearing plate 231 is simultaneously fixedly connected to both the mounting plate 237 and the cylinder fixing plate 239.

[0065] See Figure 13There is a gap between the mounting plate 237 and the support plate 231. When the driving device 24 pushes the punching module 23 to move toward the workpiece 100, the support plate 231 and its push rod 232, transmission assembly 234 and upper blade 235 all extend into the workpiece 100. The mounting plate 237 and its lower blade 236 and lower blade holder 238 are still outside the workpiece 100, while the part of the workpiece 100 to be punched (i.e. the side wall of the workpiece 100) is inserted into the gap, so that the part of the workpiece 100 to be punched can be between the upper blade 235 and the lower blade 236.

[0066] It is worth mentioning that a guide block 2310 is fixed at the end of the support plate 231 facing the workpiece 100. Under the guidance of the guide block 2310, the support plate 231 can smoothly enter the workpiece 100.

[0067] Optionally, both the punching drive device 233 and the pushing drive device 24 are cylinders.

[0068] In this embodiment, two punching modules 23 are provided, symmetrically distributed on the outer sides of the left and right ends of the punching platform 211; correspondingly, two pushing drive devices 24 are fixed at the left and right ends of the punching support 21, respectively connected to the two punching modules 23. Figure 14 As shown, a third positioning block 2311 is fixedly installed on each of the support plates 231. The two punching modules 23 are driven by two push-in drive devices 24 to extend into the workpiece 100 from the left and right ends, so as to punch two through holes in the workpiece 100 at the same time, thereby improving efficiency. At the same time, the third positioning blocks 2311 on the two support plates 231 abut against the two ends of the workpiece 100 to position the workpiece 100 in the X-axis.

[0069] See Figure 13 and Figure 14 The transmission assembly 234 includes a pressure plate 2341 and an upper cutter holder 2342. The front and rear sides of the support plate 231 are provided with receiving grooves. The pressure plate 2341 and the upper cutter holder 2342 are respectively disposed in the two receiving grooves, and the pressure plate 2341 and the upper cutter holder 2342 are fixedly connected by a guide post 2344. The guide post 2344 slides through the support plate 231 to improve the stability of the movement. The upper cutter 235 is fixed on the upper cutter holder 2342 and is positioned opposite to the lower cutter 236. When the push rod 232 is extended by the punching drive device 233, the push rod 232 can apply pressure to the pressure plate 2341 and drive the upper cutter holder 2342 and the upper cutter 235 towards the lower cutter 236 through the guide post 2344.

[0070] Furthermore, the pressure plate 2341 has a roller 2343 on its upper shaft, and the push rod 232 has an inclined surface 2321, with the roller 2343 rolling in contact with the inclined surface 2321. When the push rod 232 is extended by the punching drive device 233, the push rod 232 applies pressure to the pressure plate 2341 by cooperating with the roller 2343 through the inclined surface 2321, thereby pushing the pressure plate 2341, the upper cutter holder 2342, and the upper cutter 235 to move. This method can provide greater punching force and ensure the reliability of punching.

[0071] In this embodiment, the direction of movement of push rod 232 is perpendicular to the direction of movement of upper blade 235.

[0072] In addition, a return spring 2345 is installed between the pressure plate 2341 and the support plate 231. The return spring 2345 applies an elastic force to the pressure plate 2341 in the direction opposite to the upper tool holder 2342. After punching is completed, when the push rod 232 is driven to retract backward by the punching drive device 233, the pressure plate 2341 drives the upper tool holder 2342 and the upper tool 235 to reset under the elastic force of the return spring 2345.

[0073] Furthermore, the upper cutter holder 2342 is also equipped with a back-and-forth floating stripper block 2346. A stripper spring 2347 is installed between the stripper block 2346 and the upper cutter holder 2342. The stripper spring 2347 always applies an elastic force to the stripper block 2346 in the direction of the lower cutter 236. The stripper block 2346 has a receiving hole in the middle, and the upper cutter 235 is located in the receiving hole. In its natural state, the side of the stripper block 2346 facing the lower cutter 236 protrudes beyond the side of the upper cutter 235 facing the lower cutter 236. In this way, when the push rod 232 is extended by the punching drive device 233 and drives the transmission component 234 to move, the stripper block 2346 will first abut against the inner wall of the workpiece 100. Then, the upper blade 235 will contact the workpiece 100 and cooperate with the lower blade 236 to start punching. During this period, the stripper spring 2347 will be further compressed. The stripper block 2346 and the mounting plate 237 will clamp and position the workpiece 100, improving the punching effect. After punching is completed, the pressure plate 2341 will drive the upper blade holder 2342 and the upper blade 235 to reset for a short distance under the elastic force of the return spring 2345. The stripper block 2346 will keep pressing the workpiece 100 under the elastic force of the stripper spring 2347 so that the upper blade 235 can be removed from the workpiece 100.

[0074] See Figure 10 and Figure 11The punching positioning mechanism 22 includes a first positioning cylinder 221 arranged on the rear side of the punching platform 211, a first push block 222 mounted on the first positioning cylinder 221, and a first positioning block 223 fixed on the front side of the punching platform 211. The first positioning cylinder 221 is used to drive the first push block 222 to push the workpiece 100 on the punching platform 211 to abut against the first positioning block 223. In this state, the left and right ends of the workpiece 100 are aligned with the support plate 231.

[0075] In addition, the punching positioning mechanism 22 also includes a second positioning cylinder 224 arranged on the front side of the punching platform 211 and a second push block 225 mounted on the second positioning cylinder 224. The mounting plate 237 is provided with a second positioning block 2371. When the bearing plate 231 and its push rod 232, transmission assembly 234 and upper blade 235 extend into the workpiece 100, the second positioning cylinder 224 drives the second push block 225 to push the workpiece 100 on the punching platform 211 against the second positioning block 2371. At this time, the outer wall of the workpiece 100 is in close contact with the lower blade 236, so that the upper blade 235 and the lower blade 236 can punch holes, thereby improving the punching effect.

[0076] The punching process of this invention is as follows:

[0077] The punching and handling module 4 picks up the workpiece 100 conveyed on the milling and punching conveyor line 52 and moves it onto the punching platform 211 of the punching device 2. Then, the first positioning cylinder 221 drives the first push block 222 to push the workpiece 100 on the punching platform 211 against the first positioning block 223, so that the left and right ends of the workpiece 100 are directly facing the support plates 231 of the two punching modules 23. Next, the two pushing drive devices 24 drive the two punching modules 23 to move along the slide rail toward the workpiece 100, so that the support plate 231 and its push rod 232, transmission assembly 234 and upper cutter 235 all extend into the workpiece 100 until the left and right ends of the workpiece 100 respectively abut against the third positioning blocks 2311 of the two support plates 231. After that, the first positioning cylinder 221 drives the first push block 222 to push the workpiece 100 against the first positioning block 223 of the two support plates 231. When the push block 222 is reset, the second positioning cylinder 224 drives the second push block 225 to push the workpiece 100 against the second positioning block 2371 of the mounting plate 237, so that the outer wall of the workpiece 100 is in close contact with the lower blade 236. Then, the punching drive device 233 drives the push rod 232 to extend. The push rod 232 relies on the inclined surface 2321 and the roller 2343 to apply pressure to the pressure plate 2341, thereby pushing the pressure plate 2341, the upper blade holder 2342 and the upper blade 235 to move. The upper blade 235 cooperates with the lower blade 236 to punch the workpiece 100. After punching is completed, the punching drive device 233, the push drive device 24 and the second positioning block 2371 are reset in sequence. The punching transport module 4 adsorbs the punched workpiece 100 on the punching platform 211 and moves it to be placed on the punching unloading flow line 53.

[0078] In summary, the automatic milling and punching equipment of the present invention, by placing the workpiece 100 into the conveying device 5, automatically transports the workpiece 100 to the milling device 1 for milling, then automatically transports it to the punching device 2 for punching, and finally the finished product flows out, realizes the fully automatic milling and punching operation of the workpiece 100, greatly improves production efficiency, simplifies the processing technology, and saves labor costs. In addition, when using this technical solution to mill and punch the workpiece 100, the workpiece 100 can be easily clamped and positioned, the milling and punching processing effect is good, it is not easy to deform, and the processing accuracy and quality can be guaranteed.

[0079] Many specific details have been set forth in the foregoing description to provide a thorough understanding of the present invention. However, the above description is merely a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. An automatic milling and punching machine, characterized in that, include: The device comprises a milling unit (1), a punching unit (2), a milling transport module (3), a punching transport module (4), and a conveying device (5) for sequentially transferring workpieces (100) between the milling transport module (3) and the punching transport module (4); the milling transport module (3) is capable of reciprocating between the milling unit (1) and the conveying device (5) to transport workpieces (100) from the conveying device (5) to the milling unit (1); the milling unit (1) is used to mill the workpieces (100) transported to the milling unit (3) by the milling transport module (3), and The milling transport module (3) is also used to transport the milled workpiece (100) back to the conveying device (5); the punching transport module (4) can reciprocate between the punching device (2) and the conveying device (5) to transport the milled workpiece (100) on the conveying device (5) to the punching device (2); the punching device (2) is used to punch the workpiece (100) transported to the position by the punching transport module (4), and the punching transport module (4) is also used to transport the punched workpiece (100) back to the conveying device (5). The milling device (1) includes a milling support (16), a milling module, a milling platform (11) for receiving the workpiece (100) transported by the milling transport module (3), and a milling positioning mechanism for positioning the workpiece (100) on the milling platform (11); the milling platform (11) is fixed to the top of the milling support (16); the milling positioning mechanism includes two milling positioning cylinders (17) fixed to the milling support (16) and two positioning plates (18) slidably mounted on the milling support (16) and distributed on the outer sides of both ends of the milling platform (11), the two positioning plates (18) 18) Connected to two milling positioning cylinders (17) respectively, the two milling positioning cylinders (17) are used to drive the two positioning plates (18) to move closer to the middle so that the two positioning plates (18) are inserted into both ends of the workpiece (100) on the milling platform (11); the milling positioning mechanism also includes a milling side push cylinder (19) disposed on one side of the milling platform (11) and a milling positioning block (110) connected to the milling side push cylinder (19), the milling side push cylinder (19) is used to drive the milling positioning block (110) to abut against one side of the workpiece (100) on the milling platform (11); The punching device (2) includes a punching support (21), a punching positioning mechanism (22), and a punching module (23). The top of the punching support (21) is provided with a punching platform (211), which is used to receive the workpiece (100) transported by the punching transport module (4). The punching positioning mechanism (22) is used to position the workpiece (100) on the punching platform (211). The punching module (23) includes a support plate (231) and a push rod slidably inserted into the support plate (231). (232), a punching drive device (233) connected to the push rod (232), a transmission assembly (234) movably mounted on the support plate (231), and an upper cutter (235) and a lower cutter (236) distributed on both sides of the part to be punched on the workpiece (100). The punching drive device (233) is used to drive the push rod (232) to move, and pushes the upper cutter (235) to cooperate with the lower cutter (236) to punch the workpiece (100) through the transmission assembly (234); the transmission assembly (234) includes A pressure plate (2341) and an upper cutter holder (2342) are fixedly connected to the pressure plate (2341). The upper cutter (235) is fixed to the upper cutter holder (2342). When the push rod (232) is extended by the punching drive device (233), the push rod (232) can apply pressure to the pressure plate (2341) and drive the upper cutter holder (2342) and the upper cutter (235) to move toward the lower cutter (236). The pressure plate (2341) and the bearing plate (2342) are connected to the upper cutter holder (2341) and the upper cutter holder (2342). A return spring (2345) is installed between the pressure plate (2341) and the upper tool holder (2342). The return spring (2345) is used to apply an elastic force to the pressure plate (2341) in the direction opposite to the upper tool holder (2342). A floating stripper block (2346) and a stripper spring (2347) are installed on the upper tool holder (2342) to apply an elastic force to the stripper block (2346) in the direction of the lower tool (236). The stripper block (2346) is used to press the workpiece (100) when the upper tool (235) is reset.

2. The automatic milling and punching equipment according to claim 1, characterized in that: The milling module includes a milling cutter module (12), an X-axis drive module (13), a Y-axis drive module (14), and a Z-axis drive module (15). The X-axis drive module (13), the Y-axis drive module (14), and the Z-axis drive module (15) are used to jointly drive the milling cutter module (12) to perform three-dimensional motion in order to mill the workpiece (100) positioned on the milling platform (11).

3. The automatic milling and punching equipment according to claim 2, characterized in that: It also includes a cooling device (6), which includes a cooling water tank (61) containing coolant, a water outlet pipe (62) installed on the milling module, and a water pump for pumping the coolant inside the cooling water tank (61) into the water outlet pipe (62). A filter screen (63) is installed on the top of the cooling water tank (61), and a return channel (64) is provided above the filter screen (63). The coolant sprayed from the water outlet pipe (62) toward the milling cutter module (12) can return to the cooling water tank (61) through the return channel (64) and the filter screen (63).

4. The automatic milling and punching equipment according to claim 1, characterized in that: The punching module (23) is slidably mounted on the punching support (21), and the punching support (21) is fixed with a push-in drive device (24) connected to the punching module (23). The push-in drive device (24) is used to drive the punching module (23) to move toward the workpiece (100), and to make the support plate (231) and the push rod (232), the transmission assembly (234) and the upper cutter (235) on it extend into the workpiece (100); The punching module (23) also includes a mounting plate (237), and the lower cutter (236) is fixed on the mounting plate (237); a gap is left between the mounting plate (237) and the bearing plate (231) so that the part of the workpiece (100) to be punched can be inserted, so that the part of the workpiece (100) to be punched can be between the upper cutter (235) and the lower cutter (236).

5. The automatic milling and punching equipment according to claim 1, characterized in that: The pressure plate (2341) has a roller (2343) on its upper shaft, and the push rod (232) has an inclined surface (2321). The roller (2343) rolls in contact with the inclined surface (2321), and the push rod (232) applies pressure to the pressure plate (2341) by cooperating with the roller (2343) on the inclined surface (2321).

6. The automatic milling and punching equipment according to claim 4, characterized in that: The punching positioning mechanism (22) includes a first positioning cylinder (221) arranged on one side of the punching platform (211), a first push block (222) mounted on the first positioning cylinder (221), and a first positioning block (223) fixed on the other side of the punching platform (211). The first positioning cylinder (221) is used to drive the first push block (222) to push the workpiece (100) on the punching platform (211) to abut against the first positioning block (223). The punching positioning mechanism (22) further includes a second positioning cylinder (224) arranged on the other side of the punching platform (211) and a second push block (225) mounted on the second positioning cylinder (224). The mounting plate (237) is provided with a second positioning block (2371). The second positioning cylinder (224) is used to drive the second push block (225) to push the workpiece (100) on the punching platform (211) to abut against the second positioning block (2371).

7. The automatic milling and punching equipment according to claim 1, characterized in that: The conveying device (5) includes a milling feed line (51), a milling punching transfer line (52), and a punching unloading line (53). The milling transport module (3) includes two transport suction cup groups (31) that can both lift and move laterally. One of the transport suction cup groups (31) is used to adsorb the workpiece (100) on the milling feed line (51) and move it to the milling device (1). The other transport suction cup group (31) is used to adsorb the workpiece (100) milled by the milling device (1) and move it to the milling punching transfer line (52). The punching and handling module (4) has the same structure as the milling and handling module (3). One of the handling suction cups (31) of the punching and handling module (4) is used to pick up the workpiece (100) on the milling and punching flow line (52) and move it to the punching device (2). The other handling suction cup (31) of the punching and handling module (4) is used to pick up the workpiece (100) punched by the punching device (2) and move it to the punching unloading flow line (53).

8. The automatic milling and punching equipment according to claim 7, characterized in that: The conveying device (5) further includes a workpiece loading flow line (54) located upstream of the milling loading flow line (51) and a workpiece unloading flow line (55) located downstream of the punching unloading flow line (53). The automatic milling and punching equipment further includes a loading transfer module (7) and an unloading transfer module (8). The loading transfer module (7) can reciprocate between the workpiece loading flow line (54) and the milling loading flow line (51) to transport the workpiece (100) conveyed on the workpiece loading flow line (54) to the milling loading flow line (51). The unloading transfer module (8) can reciprocate between the punching unloading flow line (53) and the workpiece unloading flow line (55) to transport the workpiece (100) conveyed on the punching unloading flow line (53) to the workpiece unloading flow line (55).

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