Milling machine equipment

Abstract

The utility model discloses milling machine equipment, relates to the technical field of machining, solves the problem of low machining precision, and comprises a machine body, the machine body comprises a frame, a cross beam arranged on the frame and a milling head used for grinding machining; the milling machine is characterized in that the machine body further comprises a mounting plate for assembling the milling head, the mounting plate is arranged on the cross beam in a left-right sliding mode, and the cross beam is provided with a driving part used for controlling the mounting plate to slide; a detection assembly is arranged on one side of the mounting plate and comprises a lifting air cylinder arranged on the mounting plate, a connecting plate arranged on a piston rod of the lifting air cylinder, a servo motor arranged on the connecting plate and a detection sensor used for measuring displacement and position, and the detection sensor is arranged on a motor shaft of the servo motor; a feeding assembly used for conveying products is arranged at the position, located on the frame, of the machine body. The frame is provided with a limiting assembly used for positioning the machining position of a product. The grinding device has the effect of improving the grinding precision.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to a milling machine. Background Technology

[0002] A milling machine is an important machining tool, mainly used to machine various surfaces of a workpiece. Its main working principle is to combine a rotating cutting tool (milling cutter) with a fixed or moving workpiece, removing excess material from the workpiece by cutting, thereby changing its shape and size.

[0003] Milling machines can be classified by structure into bench milling machines, cantilever milling machines, and gantry milling machines. Among them, the gantry milling machine is a type of milling machine with a frame (including columns and beams) and a horizontal long bed, typically equipped with a CNC system. A milling head with a vertical spindle is usually mounted on the beam, which can move laterally along the beam guide rails to machine the surface of the product. It is suitable for machining flat and inclined surfaces of large workpieces. Especially when dealing with weld excess, milling machines and other mechanical equipment can be used for grinding to remove excess weld metal, making the weld surface smoother, reducing stress concentration, and improving the strength and fatigue life of the weld joint. At the same time, grinding can also improve the appearance quality of the weld, enhancing the overall aesthetics of the product.

[0004] However, in the existing gantry milling machine, the milling head directly processes the surface of the product according to the pre-set parameters, and the vertical machining feed is mainly completed by the spindle box. It is difficult to adjust the grinding parameters each time, which easily leads to low machining accuracy. Utility Model Content

[0005] To improve the problem of low machining accuracy, this application provides a milling machine.

[0006] This application provides a milling machine, which adopts the following technical solution:

[0007] A milling machine includes a body, the body comprising a frame and a crossbeam mounted on the frame, and a milling head for grinding operations; characterized in that: the body further includes a mounting plate for assembling the milling head, the mounting plate being slidably mounted on the crossbeam, the crossbeam being provided with a driving component for controlling the sliding of the mounting plate; a detection assembly is provided on one side of the mounting plate, the detection assembly including a lifting cylinder mounted on the mounting plate, a connecting plate mounted on the piston rod of the lifting cylinder, a servo motor mounted on the connecting plate, and a detection sensor for measuring displacement and position, the detection sensor being mounted on the motor shaft of the servo motor;

[0008] The machine body is equipped with a feeding assembly for conveying products at the frame.

[0009] The frame is provided with a limiting assembly for positioning a product processing position.

[0010] Preferably, the machine body comprises a chassis arranged on the frame, the chassis being located below the cross beam; the feeding assembly comprises a rotating rod rotatably arranged on the chassis, a roller chain plate for conveying the product, and a sprocket meshingly connected to the roller chain plate, the sprocket and the rotating rod being coaxially fixedly connected, and the chassis is provided with a control member for driving the rotating rod to rotate.

[0011] Preferably, the limiting assembly comprises a rotating plate arranged on the chassis, two rotating blocks arranged on the rotating plate, a rotating rod rotatably connected between the two rotating blocks, a limiting block fixedly arranged on the rotating rod, a turnover strip coaxially fixed to one end of the rotating rod, and a limiting cylinder obliquely arranged on the fixed plate, the rotating plate is provided with a fixed block, one end of the limiting cylinder is rotatably connected to the fixed block, and a piston rod of the limiting cylinder is rotatably connected to one end of the turnover strip away from the rotating rod.

[0012] Preferably, the rotating plate is provided with a Z-shaped check block, the Z-shaped check block is provided with a limiting bolt, and the axial direction of the limiting bolt is vertically arranged; when the limiting block abuts against the product for limiting, the turnover strip abuts against the limiting bolt.

[0013] Preferably, the chassis is provided with a positioning assembly on the left and right sides of the product, respectively, the positioning assembly comprises a supporting seat arranged on the chassis, a positioning cylinder arranged on the supporting seat, a mounting block fixedly arranged on a piston rod of the positioning cylinder, and a positioning bolt arranged on the mounting block, and a bolt head of the positioning bolt is arranged downward and in contact with a side wall of the product.

[0014] Preferably, the feeding assembly further comprises a track arranged along the product conveying direction, and the roller chain plate is located in the track; one side of the track is provided with a mounting seat, a top portion of the mounting seat is hingedly connected with a connecting rod, an obliquely arranged locking cylinder is arranged between the connecting rod and the mounting seat, one end of the locking cylinder is rotatably connected to a bottom portion of the mounting seat, and a piston rod of the locking cylinder is rotatably connected to one end of the connecting rod; one end of the connecting rod away from the locking cylinder is provided with a pressing block for limiting the product in the vertical direction.

[0015] Preferably, the mounting plate is slidably provided with a lifting plate for connecting the milling head, the mounting plate is provided with a control member for controlling the sliding of the lifting plate, and the lifting plate has a sliding stroke greater than a piston rod stroke of the lifting cylinder.

[0016] Preferably, two ends of the cross beam are respectively slidably connected to the frame, a moving assembly is arranged between the frame and the cross beam, the moving assembly comprises a rack arranged on the frame, a gear rotatably connected to one end of the cross beam and a power member for driving the gear to rotate, the gear and the rack are in engagement, and the length direction of the rack is arranged along a direction perpendicular to the length direction of the cross beam.

[0017] In summary, the present application has the following advantages:

[0018] The product is conveyed to a position directly below the milling head by the feeding assembly, then the front and rear ends of the product are positioned by the limiting assembly, the detection sensor is lowered by the lifting cylinder, the welding excess height of the welding position of the product is measured, the measured data is fed back to the numerical control system for processing, the grinding thickness and depth of the milling head each time are adjusted in real time, the grinding precision is improved, and the problem of low machining precision is solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the milling machine equipment as a whole in the embodiment of the present application;

[0020] Figure 2 is a structural schematic view of the milling head assembled on the cross beam in the embodiment of the present application;

[0021] Figure 3 is a structural schematic view of the feeding assembly in the embodiment of the present application;

[0022] Figure 4 is a structural schematic view of the connection of the pressing block, the locking cylinder and the connecting rod in the embodiment of the present application

[0023] Figure 5 is a structural schematic view of the positioning assembly in the embodiment of the present application

[0024] Figure 6 is a structural schematic view of the limiting assembly in the embodiment of the present application.

[0025] Explanation of reference signs: 1, machine body; 11, frame; 111, chassis; 1111, first side plate; 12, cross beam; 13, milling head; 2, moving assembly; 21, rack; 22, gear; 23, power piece; 3, mounting plate; 31, driving piece; 4, lifting plate; 5, control piece; 6, detection assembly; 61, lifting cylinder; 62, connecting plate; 63, servo motor; 631, rotating block; 64, detection sensor; 7, feeding assembly; 71, rotating rod; 72, roller chain plate; 73, chain wheel; 74, track; 741, second side plate; 8, operating piece; 81, motor; 82, high-torque synchronous toothed belt; 83, pulley; 9, mounting seat; 91, connecting rod; 92, locking cylinder; 93, pressing block; 10, positioning assembly; 101, support seat; 102, positioning cylinder; 103, mounting block; 1031, L-shaped plate; 104, positioning bolt; 14, limiting assembly; 141, rotating plate; 1411, fixed block; 142, rotating block; 143, rotating rod; 144, turnover strip; 145, limiting cylinder; 146, limiting block; 15, Z-shaped check block; 151, limiting bolt. DETAILED DESCRIPTION

[0026] The application will be further described in detail below in combination with the accompanying drawings of the specification.

[0027] The milling machine equipment disclosed by the embodiment of the application comprises a machine body 1. The machine body 1 comprises a frame 11, a cross beam 12 arranged on the frame 11, and a milling head 13 for grinding processing. In the embodiment, there are two milling heads 13 to realize double-station processing of the equipment and improve the processing efficiency.

[0028] Specifically, the cross beam 12 has two and is installed on the top of the frame 11 in the same horizontal direction. One milling head 13 is assembled with one cross beam 12. The two ends of the cross beam 12 are respectively connected to the top of the frame 11 through a sliding table module. A moving assembly 2 is arranged between the frame 11 and the cross beam 12. The moving assembly 2 comprises a rack 21 arranged on the frame 11, a gear 22 rotatably connected to one end of the cross beam 12, and a power piece 23 for driving the gear 22 to rotate. The power piece 23 is a servo motor (model hf-sp152) installed on one end of the cross beam 12. The gear 22 and the rack 21 are in meshing connection, and the length direction of the rack 21 is arranged along the direction perpendicular to the length direction of the cross beam 12.

[0029] In addition, the mounting plate 3 is slidably connected to the cross beam 12, and the cross beam 12 is provided with a driving member 31 for controlling the sliding of the mounting plate 3. The driving member 31 is a servo motor 63 (model HF-sp102b), the mounting plate 3 is slidably connected to the cross beam 12 through a sliding table module, and the output shaft of the servo motor 63 is coaxially fixed with a lead screw through a shaft coupling, and the lead screw is assembled on the mounting plate 3 through a bearing seat. The lifting plate 4 is fixed with a connecting block (not shown in the figure) screwed on the lead screw. Similarly, the mounting plate 3 is slidably connected with the lifting plate 4 connected with the milling head 13. The lifting plate 4 and the mounting plate 3 are also slidably connected through a sliding table module. The mounting plate 3 is provided with a control member 5 for controlling the sliding of the lifting plate 4, and the control member 5 is also a servo motor 63 (model MSMD082P1).

[0030] Further, one side of the mounting plate 3 is provided with a detection assembly 6 for detecting the thickness and depth of the weld reinforcement of the product to be processed. The detection assembly 6 comprises a lifting cylinder 61 assembled on one side of the mounting plate 3, a connecting plate 62 mounted on the bottom end of the piston rod of the lifting cylinder 61, a servo motor 63 mounted on the connecting plate 62, and a detection sensor 64 for measuring displacement and position. Among them, the detection sensor 64 is a high-precision contact digital sensor (model GT2-H50), which can ensure the accuracy and stability of the grinding process when controlling the grinding of the milling head 13, so as to realize high-precision workpiece processing. The motor 81 shaft of the servo motor 63 is coaxially fixed with a rotating block 631, and the detection sensor 64 is fixed on the side of the rotating block 631 away from the servo motor 63, which can adjust the detection position of the detection sensor 64 according to the grinding position of the product to be processed.

[0031] Further, in this embodiment, the length direction of the detection sensor 64 is vertically arranged, and the bottom end of the detection sensor 64 and the bottom end of the milling head 13 are at the same horizontal line at the initial time; and the up-down sliding stroke of the lifting plate 4 is greater than the piston rod stroke of the lifting cylinder 61.

[0032] In addition, the machine body 1 comprises a base frame 111 mounted on the frame 11 near the bottom of the frame 11, and the base frame 111 is located below the cross beam 12. The machine body 1 is provided with a feeding assembly 7 for conveying products at the frame 11, and the feeding assembly 7 comprises a rotating rod 71 rotatably connected to one side of the base frame 111, two roller chain plates 72 for conveying products, a sprocket 73 meshingly connected to the roller chain plates 72, and two tracks 74 arranged in the conveying direction of the products. Among them, the roller chain plates 72 are located in the tracks 74, and one roller chain plate 72 is assembled with one track 74. The axis of the rotating rod 71 is arranged vertically to the conveying direction of the products, and the sprocket 73 is coaxially fixed with the rotating rod 71.

[0033] Further, two first side plates 1111 are installed on one side of the base frame 111 in intervals, and two second side plates 741 are installed on the two sides of the track 74 respectively, the first side plate 1111 is located between the two tracks 74, and the rotating rod 71 and the first side plate 1111 and the rotating rod 71 and the second side plate 741 are rotationally connected through bearing seats (model HDF35). The base frame 111 is provided with a control member 8 for driving the rotating rod 71 to rotate, and the control member 8 comprises a motor 81, a high-torque synchronous toothed belt 82 and two pulleys 83. Wherein, the motor 81 is installed on one side of the base frame 111 and located between the two first side plates 1111. The motor shaft of the motor 81 is coaxially fixed with one of the pulleys 83, the rotating rod 71 is coaxially fixed with the other pulley 83, and the high-torque synchronous toothed belt 82 is meshed and connected on the two pulleys 83 to realize transmission.

[0034] Further, two mounting seats 9 are assembled on one side of the track 74 in intervals, and the top of the mounting seat 9 is hingedly connected with a connecting rod 91. An inclined upward locking cylinder 92 is arranged between the connecting rod 91 and the mounting seat 9, one end of the locking cylinder 92 is rotationally connected to the bottom of the mounting seat 9, and the piston rod of the locking cylinder 92 is rotationally connected to one end of the connecting rod 91. A pressing block 93 is installed at the bottom of the end of the connecting rod 91 away from the locking cylinder 92, for cooperating with the roller chain plate 72 to limit the product in the vertical direction.

[0035] Further, the base frame 111 is provided with a positioning assembly 10 on the left and right sides of the product, and the positioning assembly 10 comprises a supporting seat 101 installed on the base frame 111, a positioning cylinder 102 installed on the top of the supporting seat 101, an installation block 103 fixedly arranged on the piston rod of the positioning cylinder 102, and a positioning bolt 104 arranged on the installation block 103. Wherein, the installation block 103 is fixed with an L-shaped plate 1031 on the side away from the positioning cylinder 102, the positioning bolt 104 is provided through the bottom of the L-shaped plate 1031, and the top of the positioning bolt 104 is threadedly connected with a nut abutting against the L-shaped plate 1031. During installation, four positioning bolts 104 are assembled on one L-shaped plate 1031, and the bolt cap of the positioning bolt 104 is arranged downward. During use, the sidewall and the bottom of the bolt cap of the positioning bolt 104 are in contact with the sidewall of the product respectively.

[0036] The frame 11 is provided with a limiting assembly 14 for positioning the product processing position, the limiting assembly 14 is multiple and is arranged at intervals along the product conveying direction. The limiting assembly 14 comprises a rotating plate 141 mounted on the base frame 111, two rotating blocks 142 mounted on the rotating plate 141, a rotating rod 143 rotationally connected between the two rotating blocks 142, a limiting block 146 fixed to the rotating rod 143, a turnover strip 144 coaxially fixed to one end of the rotating rod 143, and a limiting cylinder 145 obliquely upward arranged on the fixed plate. The top of the rotating plate 141 is provided with a fixed block 1411, one end of the limiting cylinder 145 is rotationally connected to the fixed block 1411, and the piston rod of the limiting cylinder 145 is rotationally connected to one end of the turnover strip 144 away from the rotating rod 143.

[0037] Further, the rotating plate 141 is provided with a Z-shaped check block 15, the Z-shaped check block 15 is threadedly connected with a limiting bolt 151, the axial direction of the limiting bolt 151 is vertically arranged; when the limiting block 146 abuts against the product to limit the product, the turnover strip 144 abuts against the bolt cap of the limiting bolt 151 to limit the rotation angle of the turnover strip 144; at this time, one side of the limiting block 146 abuts against the side wall of the product to realize positioning.

[0038] The implementation principle of the milling machine equipment in the embodiment of the application is as follows:

[0039] Before processing, the product is first placed on the roller chain plate 72 to be conveyed to the processing position, and in this process, the positioning bolt 104 in the positioning assembly 10 is used to limit the left-right direction of the product. When the product is conveyed to the processing position, the four limiting blocks 146 in the limiting assembly 14 are used to abut against the front and rear ends of the product respectively to limit the front and rear positions of the product. Then the locking cylinder 92 pushes the connecting rod 91 to overturn, so that the pressing block 93 is pressed downward on the top of the product to limit the vertical direction of the product.

[0040] During processing, the servo motor 63 and the connecting plate 62 and the detection sensor 64 are first lowered by the lifting cylinder 61 to measure the weld excess height on the product, and then the measured data is fed back to the numerical control system for processing, so as to adjust the grinding thickness and depth of the milling head 13 each time in real time, so as to improve the grinding precision and improve the problem of low processing precision.

[0041] The above are preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application shall be covered within the protection scope of the application.

Claims

1. A milling machine apparatus comprising a machine body (1) comprising a frame (11) and a crossbeam (12) arranged on the frame (11) and a milling head (13) for grinding machining; characterized in that: The machine body (1) further comprises a mounting plate (3) for assembling the milling head (13), the mounting plate (3) is arranged to slide left and right on the cross beam (12), the cross beam (12) is provided with a driving member (31) for controlling the sliding of the mounting plate (3); one side of the mounting plate (3) is provided with a detection assembly (6), the detection assembly (6) comprises a lifting cylinder (61) arranged on the mounting plate (3), a connecting plate (62) arranged on the piston rod of the lifting cylinder (61), a servo motor (63) arranged on the connecting plate (62), and a detection sensor (64) for measuring displacement and position, the detection sensor (64) is arranged on the motor (81) shaft of the servo motor (63); The machine body (1) is provided with a feeding assembly (7) for conveying products at the frame (11); The frame (11) is provided with a limiting assembly (14) for positioning the product processing position.

2. A milling machine apparatus according to claim 1, wherein: The machine body (1) comprises a chassis (111) arranged on the frame (11), and the chassis (111) is located below the cross beam (12); the feeding assembly (7) comprises a rotating rod (71) rotatably arranged on the chassis (111), a roller chain plate (72) for conveying products, and a sprocket (73) engagedly connected to the roller chain plate (72), the sprocket (73) and the rotating rod (71) are coaxially fixedly connected, and the chassis (111) is provided with a control member (8) for driving the rotating rod (71) to rotate.

3. A milling machine apparatus as claimed in claim 2, wherein: The limiting assembly (14) is provided in multiple and is arranged at intervals along the product conveying direction; the limiting assembly (14) comprises a rotating plate (141) arranged on the chassis (111), two rotating blocks (142) arranged on the rotating plate (141), a rotating rod (143) rotatably connected between the two rotating blocks (142), a limiting block (146) fixedly arranged on the rotating rod (143), a turnover strip (144) coaxially fixed on one end of the rotating rod (143), and a limiting cylinder (145) obliquely arranged on the fixed plate, the rotating plate (141) is provided with a fixed block (1411), one end of the limiting cylinder (145) is rotatably connected to the fixed block (1411), and the piston rod of the limiting cylinder (145) is rotatably connected to one end of the turnover strip (144) away from the rotating rod (143).

4. A milling machine apparatus according to claim 3, wherein: The rotating plate (141) is provided with a Z-shaped check block (15), the Z-shaped check block (15) is provided with a limiting bolt (151), the axial direction of the limiting bolt (151) is arranged vertically; when the limiting block (146) abuts against the product for limiting, the turnover strip (144) abuts against the limiting bolt (151).

5. A milling machine apparatus as claimed in claim 2, wherein: The bottom frame (111) is provided with a positioning assembly (10) on the left and right sides of the product respectively, the positioning assembly (10) comprises a supporting seat (101) arranged on the bottom frame (111), a positioning cylinder (102) arranged on the supporting seat (101), a mounting block (103) fixedly arranged on the piston rod of the positioning cylinder (102), and a positioning bolt (104) arranged on the mounting block (103), wherein the bolt cap of the positioning bolt (104) is arranged downward and contacts with the side wall of the product.

6. A milling machine apparatus as claimed in claim 2, wherein: The feeding assembly further comprises a track (74) arranged along the conveying direction of the product, and the roller chain plate (72) is arranged in the track (74); one side of the track (74) is provided with a mounting seat (9), the top of the mounting seat (9) is hingedly connected with a connecting rod (91), and an locking cylinder (92) is obliquely arranged between the connecting rod (91) and the mounting seat (9); one end of the locking cylinder (92) is rotatably connected to the bottom of the mounting seat (9), and the piston rod of the locking cylinder (92) is rotatably connected to one end of the connecting rod (91); the end of the connecting rod (91) away from the locking cylinder (92) is provided with a pressing block (93) for limiting the vertical direction of the product.

7. A milling machine apparatus as claimed in claim 1, wherein: The mounting plate (3) is slidably provided with a lifting plate (4) connected with the milling head (13) above and below, and the mounting plate (3) is provided with a control member (5) for controlling the sliding of the lifting plate (4); the up-down sliding stroke of the lifting plate (4) is greater than the piston rod stroke of the lifting cylinder (61).

8. A milling machine apparatus as claimed in claim 1, wherein: Both ends of the cross beam (12) are slidably connected to the frame (11), and a moving assembly (2) is arranged between the frame (11) and the cross beam (12), the moving assembly (2) comprises a rack (21) arranged on the frame (11), a gear (22) rotatably connected to one end of the cross beam (12), and a power member (23) for driving the gear (22) to rotate, the gear (22) and the rack (21) are meshingly connected, and the length direction of the rack (21) is arranged perpendicular to the length direction of the cross beam (12).

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