A double-end milling machine

Abstract

The application relates to the technical field of milling machines, and discloses a double-end milling machine which comprises a base, a top plate, chuck devices installed on the top of the base and two groups of independent milling devices installed on the bottom of the top plate; each group of the independent milling devices comprises two sliding grooves, two longitudinal sliding bases, a longitudinal driving mechanism, a longitudinal frame, a transverse sliding base, a transverse driving mechanism, a vertical plate, a vertical frame, a tool seat and a vertical driving mechanism, the vertical plate is internally provided with a containing cavity, the bottom of the containing cavity is provided with an air inlet hole, a waste gas treatment device is installed in the containing cavity, the waste gas treatment device comprises an activated carbon frame installed in the containing cavity, a UV photolysis device installed in the containing cavity, an air inlet pipe communicated with the UV photolysis device, a first exhaust pipe communicated with the UV photolysis device, a negative pressure pump communicated with the first exhaust pipe and a second exhaust pipe communicated with the negative pressure pump; one end of the second exhaust pipe away from the negative pressure pump penetrates through the side wall of the containing cavity and is arranged. The application facilitates oil fume treatment.

Description

Technical Field

[0001] This application relates to the technical field of milling machines, and in particular to a double-head milling machine. Background Technology

[0002] Currently, a double-head milling machine, simply put, is a machine tool with an independent milling spindle (two milling heads) on each side. The two milling heads can simultaneously cut the left and right sides of the workpiece synchronously, and can process two opposite surfaces of the workpiece in one pass, which is different from a regular single-head milling machine with only one milling cutter head.

[0003] Existing double-head milling machines generally include a base, a top plate, a chuck device mounted on the top of the base, and two sets of independent milling devices mounted on the bottom of the top plate. The chuck device is used to position the shaft blank and drive the shaft blank to rotate; the chuck device is a conventional technology. Each set of independent milling devices includes two slides opened at the bottom of the top plate, two longitudinal slides slidably connected to the two slides, a longitudinal drive mechanism mounted on the two slides to drive the two longitudinal slides to move, a longitudinal frame mounted on the bottom of the two longitudinal slides, a transverse slide slidably connected to the longitudinal frame, a transverse drive mechanism mounted on the longitudinal frame to drive the transverse slides to move, a vertical plate mounted on the bottom of the transverse slide, a vertical frame mounted on one side of the vertical plate, a tool holder slidably connected to the vertical frame, and a vertical drive mechanism mounted on the vertical frame to drive the tool holder to move. The longitudinal drive mechanism, transverse drive mechanism, and vertical drive mechanism are all conventional linear drive structures such as lead screw motors.

[0004] However, when the milling cutter on the aforementioned tool holder processes the shaft blank, it generates oil fumes due to the lubricating oil cooling and lubrication, and the aforementioned structure is inconvenient for treating the oil fumes. Summary of the Invention

[0005] To facilitate the treatment of oil fumes, this application provides a double-head milling machine, employing the following technical solution:

[0006] A double-head milling machine includes a base, a top plate, a chuck device mounted on the top of the base, and two sets of independent milling devices mounted on the bottom of the top plate. Each set of independent milling devices includes two slides, two longitudinal slides, a longitudinal drive mechanism, a longitudinal frame, a transverse slide, a transverse drive mechanism, a vertical plate, a vertical frame, a tool holder, and a vertical drive mechanism. The vertical plate has a built-in receiving cavity, and the bottom of the receiving cavity has an air inlet. An exhaust gas treatment device is installed in the receiving cavity. The exhaust gas treatment device includes an activated carbon frame installed in the receiving cavity, a UV photolysis device installed in the receiving cavity, an air inlet pipe connected to the UV photolysis device, a first exhaust pipe connected to the UV photolysis device, a negative pressure pump connected to the first exhaust pipe, and a second exhaust pipe connected to the negative pressure pump. The end of the second exhaust pipe away from the negative pressure pump passes through the side wall of the receiving cavity.

[0007] By adopting the above technical solution, when oil fume needs to be treated, the negative pressure pump and UV photolysis device are started first. Then, the oil fume enters the containment cavity through the air inlet and is then treated by the UV photolysis device and activated carbon frame. In summary, the exhaust gas treatment device facilitates the treatment of oil fume.

[0008] Optionally, a first filter plate is provided at the bottom of the activated carbon frame, and the activated carbon frame is detachably installed on the first filter plate; a filter sliding sleeve is installed at the bottom of the first filter plate, and a transmission mechanism for driving the filter sliding sleeve to move is installed in the receiving cavity; a first through hole is opened on the side wall of the receiving cavity for the activated carbon frame and the first filter plate to pass through, and a sealing mechanism for sealing the first through hole is installed on the outer side wall of the first through hole.

[0009] By adopting the above technical solution, when the activated carbon frame needs to be replaced, the filter sleeve is first driven to move towards the first through hole through the transmission mechanism. The movement of the filter sleeve towards the first through hole causes the activated carbon frame to move towards the first through hole, and then the activated carbon frame can be replaced. In summary, this application facilitates the replacement of the activated carbon frame.

[0010] Optionally, the transmission mechanism includes a servo motor mounted on the side wall of the receiving cavity, a transmission screw mounted on the output shaft of the servo motor, and a first guide rod fixed to the side wall of the receiving cavity; the filter sleeve is threadedly connected to the transmission screw, and the filter sleeve is slidably connected to the first guide rod.

[0011] By adopting the above technical solution, when it is necessary to drive the filter sleeve to move, the servo motor is started first. At this time, the output shaft of the servo motor drives the transmission screw to rotate, and the rotation of the transmission screw can drive the filter sleeve to move. In summary, the transmission mechanism is designed to facilitate the movement of the filter sleeve.

[0012] Optionally, the top of the first filter plate is provided with a first dovetail groove, the bottom of the activated carbon frame is bolted with a first dovetail plate, the first dovetail plate is slidably connected to the first dovetail groove, and a fixing device for fixing the first dovetail plate is installed inside the first filter plate.

[0013] By adopting the above technical solution, when it is necessary to fix the activated carbon frame, the first dovetail plate is first slidably connected to the first dovetail groove by moving the activated carbon frame, and then the first dovetail plate is fixed by the fixing device, thereby fixing the activated carbon frame; when it is necessary to loosen the activated carbon frame, the first dovetail plate is first loosened by the fixing device, and then the activated carbon frame is pulled out; in summary, this application facilitates the disassembly and assembly of the activated carbon frame, and thus facilitates the replacement of the activated carbon frame.

[0014] Optionally, the fixing device includes a second through hole formed at the bottom of the first dovetail groove, a fixing plate slidably connected to the second through hole, a third through hole formed at the bottom of the second through hole, a second dovetail groove formed on the side wall of the third through hole, and a second dovetail plate slidably connected to the second dovetail groove; the second dovetail plate is fixed to the side wall of the fixing plate, and a first spring is fixed to the bottom of the second dovetail plate, with one end of the first spring away from the second dovetail plate fixed to the bottom of the second dovetail groove; one end of the second dovetail plate abuts against one end of the first dovetail groove, and the other end abuts against the fixing plate; a first inclined surface is provided at the end of the fixing plate near the first through hole, and the first dovetail plate can drive the fixing plate to move downward under the action of the first inclined surface; the fixing device also includes a separation mechanism for driving the fixing plate to separate from the first dovetail plate.

[0015] By adopting the above technical solution, when it is necessary to fix the first dovetail plate, the first dovetail plate is first slid in the first dovetail groove by moving the activated carbon frame. Then, the first dovetail plate drives the fixing plate to move downward under the action of the first inclined surface. The downward movement of the fixing plate presses against the first spring. After the first dovetail plate passes the top of the fixing plate, the fixing plate moves upward under the action of the first spring to fix the first dovetail plate. When it is necessary to loosen the first dovetail plate, the fixing plate can be separated from the first dovetail plate by the separation mechanism. In summary, the fixing device is designed to facilitate the fixing of the first dovetail plate.

[0016] Optionally, the separation mechanism includes a baffle bolted to the bottom of the third through hole, a second guide rod fixed to the baffle, a separation sleeve slidably connected to the second guide rod, a second spring fixed between the separation sleeve and the baffle, a push plate fixed to the top of the separation sleeve, and a drive plate bolted to the bottom of the first through hole; the drive plate can drive the push plate to move, a receiving plate is fixedly connected to the side of the fixed plate near the drive plate, and a second inclined surface is provided at the end of the receiving plate near the push plate, and the push plate can drive the receiving plate to move downward under the action of the second inclined surface; the elastic force of the second spring is much greater than the elastic force of the first spring.

[0017] By adopting the above technical solution, when the activated carbon frame needs to be replaced, the servo motor is first started. At this time, the output shaft of the servo motor drives the transmission screw to rotate. The rotation of the transmission screw drives the filter sleeve to move towards the first through hole. The movement of the filter sleeve towards the first through hole drives the first filter plate to move towards the first through hole. The movement of the first filter plate towards the first through hole drives the push plate to move towards the first through hole. Then, under the action of the drive plate, the push plate moves towards the receiving plate. Next, under the action of the second inclined surface, the push plate drives the receiving plate to move downward. The downward movement of the receiving plate drives the fixing plate to move downward. The downward movement of the fixing plate can separate it from the first dovetail plate. In summary, the separation mechanism facilitates the separation of the fixing plate from the first dovetail plate.

[0018] Optionally, the sealing mechanism includes a sealing seat bolted to the outer wall of the first through hole, a first rotating shaft rotatably connected to the sealing seat, and a sealing plate fixed to the side wall of the first rotating shaft; the sealing plate can seal the first through hole, a torsion spring is sleeved on the first rotating shaft, one end of the torsion spring is fixed to the sealing plate, and the other end is fixed to the sealing seat; a ferromagnetic plate is fixed to the top of the sealing plate, and a magnet is installed on the outer wall of the receiving cavity, and the ferromagnetic plate can be attracted to the magnet.

[0019] By adopting the above technical solution, the torsion spring can make the sealing plate fit tightly against the first through hole, thereby facilitating the sealing of the first through hole; the ferromagnetic plate and magnet can further make the sealing plate fit tightly against the first through hole.

[0020] Optionally, a push rod is fixedly connected to the side of the filter sleeve near the sealing plate, and a fourth through hole is opened in the side wall of the receiving cavity. The push rod is slidably connected to the fourth through hole, and the push rod can drive the sealing plate to rotate.

[0021] By adopting the above technical solution, the movement of the filter sleeve drives the push rod to move, and the movement of the push rod can separate the sealing plate from the first through hole, which makes it easier for the activated carbon frame to be moved out of the first through hole.

[0022] Optionally, a filter device is installed on the inner wall of the air inlet. The filter device includes two vertical grooves formed on the inner wall of the air inlet, two first fixing blocks respectively bolted to the top of the two vertical grooves, a second filter plate slidably connected to the two vertical grooves, and two second fixing blocks respectively bolted to the bottom of the two vertical grooves. A third spring is installed between each first fixing block and the second filter plate. An impact block is fixed to the top of each second fixing block. A reciprocating mechanism for driving the second filter plate to move downward is installed in the receiving cavity.

[0023] By adopting the above technical solution, the second filter plate can reduce the amount of debris entering the receiving cavity; the reciprocating mechanism and the third spring can make the second filter plate reciprocate, and the impact block can facilitate the cleaning of the second filter plate.

[0024] Optionally, the reciprocating mechanism includes a second rotating shaft rotatably connected to the bottom of the receiving cavity, a cam eccentrically fixed to one end of the second rotating shaft, and a third rotating shaft rotatably connected to the inner wall of the receiving cavity; the cam can drive the second filter plate to move downward, a first bevel gear is fixedly connected to the side wall of the transmission screw, a second bevel gear is fixedly connected to the top of the third rotating shaft, the first bevel gear meshes with the second bevel gear, a third bevel gear is fixedly connected to the bottom of the third rotating shaft, and a fourth bevel gear is fixedly connected to one end of the second rotating shaft near the third rotating shaft, the third bevel gear meshes with the fourth bevel gear.

[0025] By adopting the above technical solution, the rotation of the transmission screw drives the first bevel gear to rotate, the rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the third shaft to rotate, the rotation of the third shaft drives the third bevel gear to rotate, the rotation of the third bevel gear drives the fourth bevel gear to rotate, the rotation of the fourth bevel gear drives the second shaft to rotate, the rotation of the second shaft drives the cam to rotate, and the rotation of the cam drives the second filter plate to move downward. In summary, the reciprocating mechanism facilitates the downward movement of the second filter plate.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] When oil fume treatment is required, the negative pressure pump and UV photolysis device are started first. Then, the oil fume enters the containment cavity through the air inlet and is then treated by the UV photolysis device and activated carbon frame. In summary, the exhaust gas treatment device facilitates the treatment of oil fume. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0029] Figure 2 yes Figure 1 A schematic diagram of the vertical plate from the perspective of the A direction.

[0030] Figure 3 This is a schematic diagram of the structure highlighting the fixing device in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram highlighting the separation mechanism in the embodiments of this application.

[0032] Figure 5 This is a schematic diagram highlighting the structure of the filtering device in the embodiments of this application.

[0033] Reference numerals: 1. Base; 11. Chuck assembly; 2. Top plate; 21. Slide groove; 3. Independent milling device; 31. Longitudinal slide; 32. Longitudinal drive mechanism; 33. Longitudinal frame; 34. Transverse slide; 35. Transverse drive mechanism; 36. Vertical plate; 361. Receiving cavity; 362. Air inlet; 363. First through hole; 364. Fourth through hole; 37. Vertical frame; 38. Tool holder; 39. Vertical drive mechanism; 4. Exhaust gas treatment device ; 411 Activated carbon frame; 412 First dovetail plate; 413 Pull rod; 42 UV photolysis unit; 43 Inlet pipe; 44 First exhaust pipe; 45 Negative pressure pump; 46 Second exhaust pipe; 47 First filter plate; 48 First dovetail groove; 49 Filter sleeve; 481 Push rod; 49 Transmission mechanism; 492 Servo motor; 493 Transmission screw; 494 First guide rod; 495 Sealing connection plate 5. Fixing device; 51. Second through hole; 511. Third through hole; 512. Second dovetail groove; 52. Fixing plate; 521. Second dovetail plate; 522. First inclined surface; 53. First spring; 54. Separation mechanism; 541. Baffle; 542. Second guide rod; 543. Separation sleeve; 544. Second spring; 545. Push plate; 546. Drive plate; 547. Receiving plate; 548. Second inclined surface; 6. Sealing mechanism; 61. 62. Sealing seat; 63. First rotating shaft; 64. Sealing plate; 65. Ferromagnetic plate; 7. Magnet; 8. Filtering device; 71. Vertical groove; 72. First fixing block; 73. Second filter plate; 74. Second fixing block; 75. Third spring; 76. Impact block; 8. Reciprocating mechanism; 81. Second rotating shaft; 82. Cam; 83. Third rotating shaft; 84. First bevel gear; 85. Second bevel gear; 86. Third bevel gear; 87. Fourth bevel gear. Detailed Implementation

[0034] The embodiments of this application are described in detail below, and examples of the embodiments are shown in the accompanying drawings.

[0035] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] This application discloses a double-head milling machine, referring to... Figure 1The assembly includes a base 1, a top plate 2, a chuck device 11 mounted on the top of the base 1, and two sets of independent milling devices 3 mounted on the bottom of the top plate 2. The chuck device 11 is used to position the shaft blank and drive the shaft blank to rotate; the chuck device 11 is a conventional technology. Each set of independent milling devices 3 includes two slides 21 formed at the bottom of the top plate 2, two longitudinal slides 31 slidably connected to the two slides 21, a longitudinal drive mechanism 32 mounted on the two slides 21 for driving the two longitudinal slides 31 to move, and a mechanism mounted on the bottom of the two longitudinal slides 31. The system includes a longitudinal frame 33, a transverse slide block 34 slidably connected to the longitudinal frame 33, a transverse drive mechanism 35 mounted on the longitudinal frame 33 for driving the transverse slide block 34 to move, a vertical plate 36 mounted on the bottom of the transverse slide block 34, a vertical frame 37 mounted on one side of the vertical plate 36, a tool holder 38 slidably connected to the vertical frame 37, and a vertical drive mechanism 39 mounted on the vertical frame 37 for driving the tool holder 38 to move; the longitudinal drive mechanism 32, the transverse drive mechanism 35, and the vertical drive mechanism 39 are all conventional linear drive structures such as lead screw motors.

[0037] Reference Figure 2 The vertical plate 36 has a built-in cavity 361. The vertical plate 36 is detachably and sealedly connected by multiple plates, which enclose the cavity 361. An air inlet 362 is provided at the bottom of the cavity 361. An exhaust gas treatment device 4 is installed in the cavity 361. The exhaust gas treatment device 4 includes an activated carbon frame 41 installed in the cavity 361, a UV photolysis device 42 installed in the cavity 361, an air inlet pipe 43 connected to the UV photolysis device 42, a first exhaust pipe 44 connected to the UV photolysis device 42, a negative pressure pump 45 connected to the end of the first exhaust pipe 44 away from the UV photolysis device 42, and a second exhaust pipe 46 connected to the negative pressure pump 45. The activated carbon frame 41 is filled with activated carbon, and the filling density of the activated carbon frame 41 is sufficient to allow flue gas to pass through. The end of the second exhaust pipe 46 away from the negative pressure pump 45 is arranged through the side wall of the cavity 361. When oil fumes need to be treated, the negative pressure pump 45 and UV photolysis device 42 are started first. Then, the oil fumes enter the receiving cavity 361 through the air inlet 362. Subsequently, the oil fumes can be treated under the action of the UV photolysis device 42 and the activated carbon frame 41. In summary, the exhaust gas treatment device 4 is set up to facilitate the treatment of oil fumes.

[0038] Reference Figure 2 and Figure 3A pull rod 412 is installed on one side of the activated carbon frame 41, and a first filter plate 47 is provided at the bottom of the activated carbon frame 41. The activated carbon frame 41 is detachably installed on the first filter plate 47. A filter sleeve 48 is installed at the bottom of the first filter plate 47, and a transmission mechanism 49 for driving the filter sleeve 48 to move is installed in the receiving cavity 361. A first through hole 363 is opened on the side wall of the receiving cavity 361 for the activated carbon frame 41 and the first filter plate 47 to pass through. A sealing mechanism 6 for sealing the first through hole 363 is installed on the outer side wall of the first through hole 363. When the activated carbon frame 41 needs to be replaced, the filter sleeve 48 is first driven to move towards the first through hole 363 through the transmission mechanism 49. The movement of the filter sleeve 48 towards the first through hole 363 drives the activated carbon frame 41 to move towards the first through hole 363, and then the activated carbon frame 41 can be replaced. In summary, this application facilitates the replacement of the activated carbon frame 41.

[0039] Reference Figure 2 The transmission mechanism 49 includes a servo motor 491 mounted on the side wall of the receiving cavity 361, a transmission screw 492 mounted on the output shaft of the servo motor 491, and a first guide rod 493 bolted to the side wall of the receiving cavity 361. The side wall of the receiving cavity 361 has a mounting groove 494, and a sealing connecting plate 495 is bolted to the opening of the mounting groove 494. The servo motor 491 is mounted on the sealing connecting plate 495, and one end of the transmission screw 492 passes through the sealing connecting plate 495 and is fixedly connected to the output shaft of the servo motor 491. A filter sleeve 48 is threaded to the transmission screw 492 and slides horizontally to the first guide rod 493. When it is necessary to drive the filter sleeve 48 to move, the servo motor 491 is started first. At this time, the output shaft of the servo motor 491 drives the transmission screw 492 to rotate, and the rotation of the transmission screw 492 drives the filter sleeve 48 to move. In summary, the transmission mechanism 49 facilitates the movement of the filter sleeve 48.

[0040] Reference Figure 2 and Figure 3 The first filter plate 47 has a first dovetail groove 471 at its top, and the bottom of the activated carbon frame 41 is bolted with a first dovetail plate 411. The first dovetail plate 411 slides horizontally and is connected to the first dovetail groove 471. A fixing device 5 for fixing the first dovetail plate 411 is installed inside the first filter plate 47. When it is necessary to fix the activated carbon frame 41, the first dovetail plate 411 is first slidably connected to the first dovetail groove 471 by moving the activated carbon frame 41, and then the first dovetail plate 411 is fixed by the fixing device 5, thereby fixing the activated carbon frame 41. When it is necessary to loosen the activated carbon frame 41, the first dovetail plate 411 is first loosened by the fixing device 5, and then the activated carbon frame 41 is pulled out. In summary, this application facilitates the disassembly and assembly of the activated carbon frame 41, and thus facilitates the replacement of the activated carbon frame 41.

[0041] Reference Figure 3 and Figure 4 The fixing device 5 includes a second through hole 51 formed at the bottom of the first dovetail groove 471, a fixing plate 52 vertically slidably connected to the second through hole 51, a third through hole 511 formed at the bottom of the second through hole 51, a second dovetail groove 512 formed on the side wall of the third through hole 511, and a second dovetail plate 521 vertically slidably connected to the second dovetail groove 512; the second dovetail plate 521 is fixedly connected to the side wall of the fixing plate 52, and a first spring 53 is vertically fixedly connected to the bottom of the second dovetail plate 521. One end of the second dovetail plate 521 is fixed to the bottom of the second dovetail groove 512; one end of the second dovetail plate 521 abuts against one end of the first dovetail groove 471, and the other end abuts against the fixing plate 52; the fixing plate 52 is provided with a first inclined surface 522 at one end near the first through hole 363, and the first dovetail plate 411 can drive the fixing plate 52 to move downward under the action of the first inclined surface 522. The fixing device 5 also includes a separation mechanism 54 for driving the fixing plate 52 to separate from the first dovetail plate 411. When it is necessary to fix the first dovetail plate 411, the first dovetail plate 411 is first slid in the first dovetail groove 471 by moving the activated carbon frame 41. Then, the first dovetail plate 411 drives the fixing plate 52 to move downward under the action of the first inclined surface 522. The fixing plate 52 moves downward and presses against the first spring 53. After the first dovetail plate 411 passes the top of the fixing plate 52, the fixing plate 52 moves upward under the action of the first spring 53 to fix the first dovetail plate 411. When it is necessary to loosen the first dovetail plate 411, the fixing plate 52 can be separated from the first dovetail plate 411 by the separation mechanism 54. In summary, the fixing device 5 is provided to facilitate the fixing of the first dovetail plate 411.

[0042] Reference Figure 3 and Figure 4The separation mechanism 54 includes a baffle 541 bolted to the bottom of the third through hole 511, a second guide rod 542 horizontally fixed to the baffle 541, a separation sleeve 543 slidably connected to the second guide rod 542, a second spring 544 horizontally fixed between the separation sleeve 543 and the baffle 541, a push plate 545 fixed to the top of the separation sleeve 543, and a drive plate 546 bolted vertically to the bottom of the first through hole 363; the drive plate 546 is capable of driving... The push plate 545 moves, and the fixed plate 52 is fixed to the side of the drive plate 546 with a receiving plate 547. The receiving plate 547 is provided with a second inclined surface 548 at the end near the push plate 545. The push plate 545 can drive the receiving plate 547 to move downward under the action of the second inclined surface 548. The elastic force of the second spring 544 is much greater than the elastic force of the first spring 53. So when the drive plate 546 is separated from the push plate 545, the second spring 544 can drive the push plate 545 to reset. When the activated carbon frame 41 needs to be replaced, the servo motor 491 is started first. At this time, the output shaft of the servo motor 491 drives the transmission screw 492 to rotate. The rotation of the transmission screw 492 drives the filter sleeve 48 to move towards the first through hole 363. The movement of the filter sleeve 48 towards the first through hole 363 drives the first filter plate 47 to move towards the first through hole 363. The movement of the first filter plate 47 towards the first through hole 363 drives the push plate 545 to move towards the first through hole 363. Then, under the action of the drive plate 546, the push plate 545 moves towards the receiving plate 547. Next, under the action of the second inclined surface 548, the push plate 545 drives the receiving plate 547 to move downward. The downward movement of the receiving plate 547 drives the fixing plate 52 to move downward. The downward movement of the fixing plate 52 can separate it from the first dovetail plate 411. In summary, the separation mechanism 54 facilitates the separation of the fixing plate 52 from the first dovetail plate 411.

[0043] Reference Figure 2 and Figure 3 The sealing mechanism 6 includes a sealing seat 61 bolted to the outer wall of the first through hole 363, a first rotating shaft 62 rotatably connected to the sealing seat 61 via a bearing, and a sealing plate 63 fixed to the side wall of the first rotating shaft 62. The sealing plate 63 can seal the first through hole 363. A torsion spring (not shown in the figure) is sleeved on the first rotating shaft 62. One end of the torsion spring is fixed to the sealing plate 63, and the other end is fixed to the sealing seat 61. A ferromagnetic plate 64 is fixed to the top of the sealing plate 63, and a magnet 65 is installed on the outer wall of the receiving cavity 361. The ferromagnetic plate 64 can be attracted to the magnet 65. The torsion spring allows the sealing plate 63 to fit tightly against the first through hole 363, thereby facilitating the sealing of the first through hole 363. The ferromagnetic plate 64 and the magnet 65 further ensure that the sealing plate 63 fits tightly against the first through hole 363.

[0044] Reference Figure 2 and Figure 3 A push rod 481 is horizontally fixed to the side of the filter sleeve 48 near the sealing plate 63. A fourth through hole 364 is provided on the side wall of the receiving cavity 361. The push rod 481 is horizontally slidably connected to the fourth through hole 364, and the push rod 481 can drive the sealing plate 63 to rotate. The movement of the filter sleeve 48 causes the push rod 481 to move, and the movement of the push rod 481 can separate the sealing plate 63 from the first through hole 363, which facilitates the removal of the activated carbon frame 41 from the first through hole 363.

[0045] Reference Figure 2 and Figure 5 A filter device 7 is installed on the inner wall of the air inlet 362. The filter device 7 includes two vertical grooves 71 formed in the inner wall of the air inlet 362, two first fixing blocks 72 respectively bolted to the top of the two vertical grooves 71, a second filter plate 73 slidably connected to the two vertical grooves 71, and two second fixing blocks 74 respectively bolted to the bottom of the two vertical grooves 71. A third spring 75 is vertically installed between each first fixing block 72 and the second filter plate 73. An impact block 76 is fixed to the top of each second fixing block 74. A reciprocating mechanism 8 for driving the second filter plate 73 to move downward is installed in the receiving cavity 361. The second filter plate 73 reduces the amount of debris entering the receiving cavity 361. The reciprocating mechanism 8 and the third spring 75 enable the second filter plate 73 to reciprocate, and the impact block 76 facilitates cleaning of the second filter plate 73.

[0046] Reference Figure 2 and Figure 5The reciprocating mechanism 8 includes a second rotating shaft 81 horizontally rotatably connected to the bottom of the receiving cavity 361 via a bearing, a cam 82 eccentrically fixed to one end of the second rotating shaft 81, and a third rotating shaft 83 vertically rotatably connected to the inner wall of the receiving cavity 361 via a bearing. The cam 82 can drive the second filter plate 73 to move downward. A first bevel gear 84 is fixedly connected to the side wall of the transmission screw 492. A second bevel gear 85 is fixedly connected to the top of the third rotating shaft 83. The first bevel gear 84 meshes with the second bevel gear 85. A third bevel gear 86 is fixedly connected to the bottom of the third rotating shaft 83. A fourth bevel gear 87 is fixedly connected to one end of the second rotating shaft 81 near the third rotating shaft 83. The third bevel gear 86 meshes with the fourth bevel gear 87. The rotation of the transmission screw 492 drives the first bevel gear 84 to rotate, the rotation of the first bevel gear 84 drives the second bevel gear 85 to rotate, the rotation of the second bevel gear 85 drives the third rotating shaft 83 to rotate, the rotation of the third rotating shaft 83 drives the third bevel gear 86 to rotate, the rotation of the third bevel gear 86 drives the fourth bevel gear 87 to rotate, the rotation of the fourth bevel gear 87 drives the second rotating shaft 81 to rotate, the rotation of the second rotating shaft 81 drives the cam 82 to rotate, and the rotation of the cam 82 drives the second filter plate 73 to move downward. In summary, the reciprocating mechanism 8 facilitates the downward movement of the second filter plate 73.

[0047] All other sealing requirements in this application are achieved using conventional structures such as sealing rings, sealing strips, and sealant, which will not be elaborated upon here.

[0048] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A double-head milling machine, comprising a base (1), a top plate (2), a chuck device (11) mounted on the top of the base (1), and two sets of independent milling devices (3) mounted on the bottom of the top plate (2); each set of the independent milling devices (3) comprises two slides (21), two longitudinal slides (31), a longitudinal drive mechanism (32), a longitudinal frame (33), a transverse slide (34), a transverse drive mechanism (35), a vertical plate (36), a vertical frame (37), a tool holder (38), and a vertical drive mechanism (39), characterized in that, The vertical plate (36) has a built-in cavity (361), and an air inlet (362) is provided at the bottom of the cavity (361). An exhaust gas treatment device (4) is installed in the cavity (361). The exhaust gas treatment device (4) includes an activated carbon frame (41) installed in the cavity (361), a UV photolysis device (42) installed in the cavity (361), an air inlet pipe (43) connected to the UV photolysis device (42), a first exhaust pipe (44) connected to the UV photolysis device (42), a negative pressure pump (45) connected to the first exhaust pipe (44), and a second exhaust pipe (46) connected to the negative pressure pump (45). The end of the second exhaust pipe (46) away from the negative pressure pump (45) passes through the side wall of the cavity (361).

2. A double-head milling machine according to claim 1, characterized in that, The activated carbon frame (41) is provided with a first filter plate (47) at its bottom, and the activated carbon frame (41) is detachably installed on the first filter plate (47); a filter sleeve (48) is installed at the bottom of the first filter plate (47), and a transmission mechanism (49) for driving the filter sleeve (48) to move is installed in the receiving cavity (361); a first through hole (363) is opened on the side wall of the receiving cavity (361) for the activated carbon frame (41) and the first filter plate (47) to pass through, and a sealing mechanism (6) for sealing the first through hole (363) is installed on the outer side wall of the first through hole (363).

3. A double-head milling machine according to claim 2, characterized in that, The transmission mechanism (49) includes a servo motor (491) mounted on the side wall of the receiving cavity (361), a transmission screw (492) mounted on the output shaft of the servo motor (491), and a first guide rod (493) fixed to the side wall of the receiving cavity (361); the filter sleeve (48) is threadedly connected to the transmission screw (492), and the filter sleeve (48) is slidably connected to the first guide rod (493).

4. A double-head milling machine according to claim 2, characterized in that, The first filter plate (47) has a first dovetail groove (471) at the top, and the bottom of the activated carbon frame (41) is bolted with a first dovetail plate (411). The first dovetail plate (411) is slidably connected to the first dovetail groove (471), and a fixing device (5) for fixing the first dovetail plate (411) is installed in the first filter plate (47).

5. A double-head milling machine according to claim 4, characterized in that, The fixing device (5) includes a second through hole (51) opened at the bottom of the first dovetail groove (471), a fixing plate (52) slidably connected to the second through hole (51), a third through hole (511) opened at the bottom of the second through hole (51), a second dovetail groove (512) opened on the side wall of the third through hole (511), and a second dovetail plate (521) slidably connected to the second dovetail groove (512); the second dovetail plate (521) is fixed to the side wall of the fixing plate (52), and a first spring (53) is fixed to the bottom of the second dovetail plate (521), the first spring (53) being far from the side wall of the fixing plate (521). One end of the second dovetail plate (521) is fixed to the bottom of the second dovetail groove (512); one end of the second dovetail plate (521) abuts against one end of the first dovetail groove (471), and the other end abuts against the fixing plate (52); the fixing plate (52) is provided with a first inclined surface (522) at one end near the first through hole (363), and the first dovetail plate (411) can drive the fixing plate (52) to move downward under the action of the first inclined surface (522). The fixing device (5) also includes a separation mechanism (54) for driving the fixing plate (52) to separate from the first dovetail plate (411).

6. A double-head milling machine according to claim 5, characterized in that, The separation mechanism (54) includes a baffle (541) bolted to the bottom of the third through hole (511), a second guide rod (542) fixed to the baffle (541), a separation sleeve (543) slidably connected to the second guide rod (542), a second spring (544) fixed between the separation sleeve (543) and the baffle (541), a push plate (545) fixed to the top of the separation sleeve (543), and a drive plate (546) bolted to the bottom of the first through hole (363). The drive plate (546) can drive the push plate (545) to move. The fixed plate (52) has a receiving plate (547) fixed to one side near the drive plate (546). The receiving plate (547) has a second inclined surface (548) at one end near the push plate (545). The push plate (545) can drive the receiving plate (547) to move downward under the action of the second inclined surface (548). The elastic force of the second spring (544) is much greater than that of the first spring (53).

7. A double-head milling machine according to claim 2, characterized in that, The sealing mechanism (6) includes a sealing seat (61) bolted to the outer wall of the first through hole (363), a first rotating shaft (62) rotatably connected to the sealing seat (61), and a sealing plate (63) fixed to the side wall of the first rotating shaft (62). The sealing plate (63) can seal the first through hole (363). A torsion spring is sleeved on the first rotating shaft (62). One end of the torsion spring is fixed to the sealing plate (63), and the other end is fixed to the sealing seat (61). A ferromagnetic plate (64) is fixed to the top of the sealing plate (63). A magnet (65) is installed on the outer wall of the receiving cavity (361). The ferromagnetic plate (64) can attract the magnet (65).

8. A double-head milling machine according to claim 7, characterized in that, A ferromagnetic plate (64) is fixedly connected to the top of the sealing plate (63), and a magnet (65) is installed on the outer side wall of the receiving cavity (361). The ferromagnetic plate (64) can be attracted to the magnet (65). A push rod (481) is fixedly connected to the side of the filter sleeve (48) near the sealing plate (63). A fourth through hole (364) is opened on the side wall of the receiving cavity (361). The push rod (481) is slidably connected to the fourth through hole (364), and the push rod (481) can drive the sealing plate (63) to rotate.

9. A double-head milling machine according to claim 3, characterized in that, The inner wall of the air inlet (362) is equipped with a filter device (7). The filter device (7) includes two vertical grooves (71) opened on the inner wall of the air inlet (362), two first fixing blocks (72) respectively bolted to the top of the two vertical grooves (71), a second filter plate (73) slidably connected to the two vertical grooves (71), and two second fixing blocks (74) respectively bolted to the bottom of the two vertical grooves (71). A third spring (75) is installed between each first fixing block (72) and the second filter plate (73). An impact block (76) is fixed to the top of each second fixing block (74). A reciprocating mechanism (8) for driving the second filter plate (73) to move downward is installed in the receiving cavity (361).

10. A double-head milling machine according to claim 9, characterized in that, The reciprocating mechanism (8) includes a second rotating shaft (81) rotatably connected to the bottom of the receiving cavity (361), a cam (82) eccentrically fixed to one end of the second rotating shaft (81), and a third rotating shaft (83) rotatably connected to the inner wall of the receiving cavity (361). The cam (82) can drive the second filter plate (73) to move downward. A first bevel gear (84) is fixed to the side wall of the transmission screw (492). A second bevel gear (85) is fixed to the top of the third rotating shaft (83). The first bevel gear (84) meshes with the second bevel gear (85). A third bevel gear (86) is fixed to the bottom of the third rotating shaft (83). A fourth bevel gear (87) is fixed to one end of the second rotating shaft (81) near the third rotating shaft (83). The third bevel gear (86) meshes with the fourth bevel gear (87).

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