An automatic trimming machine bed suitable for multi-specification material rods

Abstract

This invention relates to the field of cutting machine technology and discloses an automatic cutting machine tool suitable for multi-specification bars. It includes a feeding mechanism, a planar trimming mechanism, a step trimming mechanism, a conveyor rack, a loading trolley, and an unloading trolley. The planar trimming mechanism and the step trimming mechanism are respectively located at both ends of the feeding mechanism. Both mechanisms include cutting cutter heads, which are used to cut the neutral plane and step of the bar spindle, respectively. The conveyor rack is located at the front end of the feeding mechanism, and a conveying structure is installed above it. The loading trolley is located at the front end of the conveyor rack, and the unloading trolley is located at the rear end of the feeding mechanism. This invention, through its symmetrical planar trimming and step trimming mechanisms, significantly outperforms the eccentricity error of traditional lathes, meets the requirements for multiple specifications, maintains structural stability even during high-speed cutting, extends tool life by 50%, reduces the surface roughness to Ra1.6μm, adapts to bars of different lengths, and achieves a closed-loop loading and unloading system.

Description

Technical Field

[0001] This invention relates to the field of material trimming machine technology, specifically to an automatic trimming machine tool suitable for multi-specification bars. Background Technology

[0002] In the field of hardware raw material processing, bar trimming is a key pre-processing step, and its trimming quality and efficiency have a crucial impact on the smoothness of the entire production process and the quality of the final product.

[0003] Increased working hours and frequent repairs can lead to worker fatigue and increase the risk of production safety accidents. Large-volume repairs can be inefficient and fail to meet the production demands of downstream processes. Large dimensional inaccuracies in the repaired material ends negatively impact the precision of downstream processes. Traditional equipment requires time-consuming and potentially damaging operations such as changing tools or adjusting tool holder angles on traditional lathes by loosening nuts and changing locking teeth. Traditional manual clamping suffers from uneven clamping force, leading to vibration, affecting cutting stability, and posing a risk of operator hand contact with the tool. Traditional material feeding mechanisms often use cylinders, which can cause jamming due to uneven bar weight. Traditional material racks require manual measurement of bar length and adjustment of limit blocks, and traditional loading and unloading rely on forklifts, making operations cumbersome. Therefore, corresponding technical solutions are needed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic trimming machine tool suitable for multi-specification bars, thus solving its technical problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an automatic trimming machine tool suitable for multi-specification bars, including a feeding mechanism, a flat surface trimming mechanism, a step trimming mechanism, a conveyor rack, a loading trolley, and a unloading trolley. The flat surface trimming mechanism and the step trimming mechanism are respectively located at both ends of the feeding mechanism. Both the flat surface trimming mechanism and the step trimming mechanism include a cutting disc. The cutting discs located at both ends are used to cut the neutral surface of the bar spindle and the step, respectively.

[0006] The conveyor frame is located at the front end of the feeding mechanism, and a conveying structure is installed and distributed above the conveyor frame;

[0007] The loading trolley is located at the front end of the conveyor rack;

[0008] The feeding trolley is located at the rear end of the feeding mechanism.

[0009] Preferably, the feeding mechanism includes a fixed frame, a support plate, a pad, a feeding plate, a horizontal motor, and a hexagonal connecting rod. A movable support structure is installed at the bottom of the fixed frame. The pad is symmetrically installed at the upper end of the fixed frame. The support plate is fixedly installed at the top inner end of the pad. The feeding plate is movably connected to the inner end of the support plate. A slot 2 is provided above the feeding plate, and a slot 1 is provided above the support plate.

[0010] The first movable support structure is used for stable support or movable fixed frame; the first pad is used to install the support plate at the upper end; the support plate is used to adjust the material feeding plate at the inward end; and both the second and first slots are used to hold the bar stock.

[0011] Preferably, a gasket is installed on the upper end of the pad plate, the horizontal motor is installed on the upper end of the gasket, the output end of the horizontal motor is connected to a coupling, the right end of the hexagonal connecting rod is installed on the left end of the coupling, a fixed gear and a drive sprocket are fixedly provided at both ends of the hexagonal connecting rod, and a shaft seat is rotatably connected at both ends of the hexagonal connecting rod, the shaft seat is installed on the inner end of the support plate;

[0012] A driven sprocket is provided at the front end of the outer side of the support plate located at the right end. The inner end of the driven sprocket is connected to a movable shaft plate three. The inner end of the movable shaft plate three is rotatably connected to a movable shaft. A movable shaft plate four is provided at the rear end of the outer side of the support plate located at the right end. Both the movable shaft and the movable shaft plate four are connected to the outer end of the feeding plate.

[0013] The outer end of the material feeding plate located on the right end is fixedly provided with a longitudinal slide rail, the outer end of the longitudinal slide rail is slidably connected with a second slider, the outer end of the second slider is fixedly provided with a first slider, and the outer end of the first slider is slidably connected with a transverse slide rail.

[0014] The shim is used to mount the horizontal motor at the upper end. The horizontal motor is used to drive and control the rotation of coupling one. Coupling one is used to drive the hexagonal connecting rod, the drive sprocket, and the fixed gear to rotate. The bearing seat is used to install on the inner end of the support plate to stably support the rotation of the hexagonal connecting rod. The drive sprocket is used to drive the driven sprocket through the chain, thereby driving the movable shaft plate three and the movable shaft to rotate. At the same time, the movable shaft plate four is used to assist in the movable adjustment of the material feeding plate at the right end. The material feeding plate at the right end is located at the outer end of slider two and slider one through the inner horizontal slide rail and the longitudinal slide rail for stable support and sliding adjustment. The fixed gear is used to rotate the gear through the chain drive.

[0015] Preferably, a rotating gear is provided at the front end of the outer side of the support plate at the left end, and a second movable shaft plate is connected through the inner end of the rotating gear. A first movable shaft plate is provided at the rear end of the outer side of the support plate at the left end. Both the second movable shaft plate and the first movable shaft plate are connected to the outer end of the feeding plate.

[0016] An extension plate is fixedly connected to the lower end of the feeding plate;

[0017] The rotating gear is used to drive the second movable shaft plate to rotate, the first movable shaft plate is used to assist the adjustment of the material feeding plate at the left end, and the extension plate is used for downward vertical support.

[0018] Preferably, a protective cover is installed on the outside of the driving sprocket and the driven sprocket, a protective cover is installed on the outside of the rotating gear and the fixed gear, a protective frame is installed on the outside of the coupling, and a protective frame is installed on the outside of the hexagonal connecting rod.

[0019] The support plate is equipped with hooks on its side ends;

[0020] Protective cover one is used to protect the driving sprocket and the driven sprocket. Protective cover two is used to protect the rotating gear and the fixed gear. Protective frame one and protective frame two are used to protect the coupling one and the hexagonal connecting rod. The hook is used to position and lock the unloading trolley.

[0021] Preferably, the plane repair mechanism and the step repair mechanism are symmetrically structured and include a control panel, a second pad, a storage box, a first drive motor, a moving block, a sliding plate, a base frame, a second moving support structure, a lower clamp, the second drive motor, and a bracket. The second pad is installed at the upper end of the storage box, the base frame is installed at the lower end of the storage box, the second moving support structure is installed at the bottom corner of the base frame, and the control panel is installed at the top corner of the second pad.

[0022] The movable block is installed on the top of the pad plate two near the inner end, the slide plate is slidably connected to the upper end of the movable block, the second drive motor is installed on the outer end of the bracket, the bracket is fixedly installed on the top of the slide plate near the rear end, the first drive motor is installed on the outer end of the movable block, and the cutting disc is installed on the inner end of the slide plate.

[0023] The cutting waste is directly discharged into the collection box through the guide troughs of the flat surface repair mechanism and the step repair mechanism, avoiding the accumulation of waste and interfering with the processing, realizing unmanned operation and reducing downtime by 20%. Drive motor one is used to drive and control the sliding plate to move and adjust its position at the upper end of the moving block, and drive motor two is used to drive and control the cutting disc.

[0024] Preferably, the outer end of the cutting disc is connected to a connecting shaft, the inner end of the cutting disc is provided with an adjustment groove, and the middle of the adjustment groove is provided with a first cutting tool fixing seat and a second cutting tool fixing seat. The outer ends of the first cutting tool fixing seat and the second cutting tool fixing seat are equipped with an adjustment fixing block and a pressure block by locking screws. The inner side of the adjustment fixing block is equipped with a chamfered cutting tool, the upper end of the first cutting tool fixing seat is equipped with a triangular slotted cutting tool, and the outer end of the pressure block is equipped with a pressure plate.

[0025] A protective box is installed at the top inner end of the second pad, an electric telescopic device is installed at the upper end of the protective box, an upper clamp is connected to the lower end of the electric telescopic device, and the lower clamp is fixedly installed at the top inner end of the second pad.

[0026] The protective box is equipped with auxiliary sliding plates at both ends of its inner side;

[0027] The upper and lower chucks are used to control the clamping of both ends of the bar stock. For bars with different cutting steps and diameters, the cutting tools can be adjusted quickly, conveniently and flexibly, effectively preventing the parts from deforming due to excessive cutting force during the cutting process.

[0028] Preferably, the conveyor rack includes a rack, connecting corner plates, casters, support legs, push rods, push plates, and an electro-hydraulic device. The push rods are fixedly distributed at the upper end of the rack. Guide plates are installed at both ends of the top of the rack. Extended support plates are installed at the front end of the rack. A mounting frame three is installed at the outer end of the rack. The electro-hydraulic device is fixedly located at the outer end of the mounting frame three. A hydraulic rod is connected through the inner end of the electro-hydraulic device. The push plate is fixedly located at the inner end of the hydraulic rod.

[0029] The conveying structure includes a fixed rod, a connecting plate, and a conveyor belt. The connecting plate is fixedly distributed on the side end of the fixed rod. Mounting frame one and mounting frame two are installed at both ends of the fixed rod. Mounting frame one, mounting frame two, and the connecting plate are fixedly located on the side end of the top rod. A coupling two is connected through the side end of mounting frame one. A motor is connected to the outer end of coupling two. A toothed cylinder is connected through the inner end of coupling two. The conveyor belt is sleeved between the toothed cylinders.

[0030] The guide plate is used to precisely guide the conveying bar stock. The electro-hydraulic device and hydraulic rod are used for automated control of the push plate extension and adjustment. The push plate is used to clamp and position the bar stock to prevent it from scattering. The motor is used to control the rotation of the coupling and the gear cylinder, which drives the conveyor belt to output the bar stock forward.

[0031] Preferably, the loading trolley includes a frame and a pallet, a movable wheel is installed at the bottom corner of the frame, the pallet is fixedly distributed at the upper end of the frame, and a bar placement groove is opened at the middle of the upper end of the pallet;

[0032] The bar stock placement slot has a certain depth to facilitate the storage of multiple bars.

[0033] Preferably, the unloading trolley includes a lower frame, an upper frame, a partition, a front rod, a rear rod, a fixed rod, and a stop bar. A second movable wheel is installed at the bottom corner of the lower frame. The front rod is fixedly installed at the front end of the lower frame and the upper frame. The rear rod is fixedly installed at the rear end of the lower frame and the upper frame. The partition is fixedly installed in the middle of the lower frame and the upper frame.

[0034] The fixing rod is fixedly installed at the upper end between the rear rods, the stop rod is fixedly installed at the upper end of the upper frame and the upper end of the front rod in an oblique structure, and reinforcing rods are fixedly distributed between the front rod, the rear rod and the lower frame;

[0035] The slanted bar structure allows the bar stock to be stored at the top of the upper frame, accommodating multiple trimmed bars and reducing the frequency of manual handling.

[0036] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting up a symmetrical planar trimming mechanism and a step trimming mechanism, the double-layer positioning design ensures that the spindle neutral plane and the slide neutral plane are completely coincident, controlling the concentricity of the bar stock step within 0.25mm, which is significantly better than the eccentricity error caused by the single-layer fixation of traditional lathes; by using 25mm long triangular cutting tools in the planar trimming mechanism, the cutting range is expanded to Φ10-Φ23mm through cutting tool length optimization, eliminating the end face center boss in one go and avoiding secondary processing; by configuring 16mm long triangular cutting tools in the step trimming mechanism, combined with the tool holder side set screw and M5 socket head cap screw adjustment, it can flexibly cut Φ7mm, Φ12mm, and Φ14mm steps to meet multiple specification requirements. Through the cutting tool length and adjustment mechanism, "one tool for multiple uses" is achieved, reducing downtime for tool changing by more than 30%; the structure can still maintain stability during high-speed cutting, the tool life is extended by 50%, and the surface roughness of the cutting surface is reduced to Ra1.6μm;

[0037] The clamp can be changed simply by plugging and unplugging, which realizes automatic clamping of bar stock. The single operation time is reduced from 2 minutes to 5 seconds, and the efficiency is improved by 95%. Compared with the traditional manual vise clamping, this design eliminates the vibration caused by uneven clamping force, improves cutting stability by 40%, and avoids the risk of the operator's hand coming into contact with the tool.

[0038] The automated control of the feeding mechanism enables the feeding of bars one by one, adapting to bars of different lengths;

[0039] By using the conveyor rack at the front end of the feeding mechanism and the two sets of conveying structures at the top inside, the electric push plate and guide plate work together to push bars of different lengths to the same processing position, ensuring that the cutting starting point of the machine head is consistent.

[0040] The loading trolley and unloading trolley are designed in a coordinated manner to achieve a closed loop of "loading-processing-unloading". Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall front upper right view of the bar stock laying structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the overall front upper left view of the bar stock laying structure of the present invention;

[0043] Figure 3This is a schematic diagram of the overall rear-top view of the bar stock laying structure of the present invention;

[0044] Figure 4 This is a schematic diagram of the feeding mechanism from the upper right view of the present invention;

[0045] Figure 5 This is a schematic diagram of the feeding mechanism of the present invention from the upper left perspective;

[0046] Figure 6 This is a partial structural diagram of the feeding mechanism of the present invention;

[0047] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0048] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B;

[0049] Figure 9 This is a schematic diagram of the drive structure of the feeding mechanism of the present invention;

[0050] Figure 10 This is a schematic diagram of the internal structure of one end of the feeding mechanism of the present invention;

[0051] Figure 11 This is a schematic diagram of the driven structure of the feeding mechanism of the present invention;

[0052] Figure 12 This is a schematic diagram of the inner end of the plane trimming mechanism of the present invention from the perspective of the upper part;

[0053] Figure 13 This is a schematic diagram of the structure from the upper view of the outer end of the plane trimming mechanism of the present invention;

[0054] Figure 14 This is a schematic diagram of the cutting head structure of the present invention;

[0055] Figure 15 This is a schematic diagram of the explosive structure of the cutting head of the present invention;

[0056] Figure 16 This is a schematic diagram of the conveyor rack and loading trolley structure of the present invention;

[0057] Figure 17 This is a schematic diagram of the conveyor rack structure of the present invention;

[0058] Figure 18 This is a schematic diagram of the conveying structure of the present invention;

[0059] Figure 19 For the present invention Figure 17 Enlarged structural diagram at point C;

[0060] Figure 20 This is a schematic diagram of the material loading trolley structure of the present invention;

[0061] Figure 21 This is a schematic diagram of the unloading trolley structure of the present invention.

[0062] In the diagram: 1. Material feeding mechanism; 11. Fixed frame; 111. Movable support structure one; 12. Support plate; 121. Slot one; 122. Movable shaft plate one; 123. Movable shaft plate two; 1231. Rotating gear; 124. Driven sprocket; 125. Movable shaft plate three; 1251. Movable shaft; 126. Movable shaft plate four; 13. Pad plate one; 131. Shim; 14. Material feeding plate; 140. Slot 2; 141. Extension plate; 15. Horizontal motor; 151. Hexagonal connecting rod; 152. Coupling 1; 153. Shaft seat; 154. Drive sprocket; 155. Fixed gear; 16. Protective frame 1; 161. Protective cover 1; 162. Protective cover 2; 163. Protective frame 2; 17. Hook; 18. Horizontal slide rail; 181. Slider 1; 182. Slider 2; 183. Longitudinal slide rail;

[0063] 2. Flat surface repair mechanism; 20. Control panel; 21. Pad II; 22. Storage box; 23. Drive motor I; 231. Moving block; 232. Slide plate; 24. Protective box; 241. Auxiliary slide plate; 25. Base frame; 251. Moving support structure II; 26. Electric telescopic device; 261. Upper chuck; 27. Lower chuck; 28. Cutting disc; 281. Connecting shaft; 282. Cutting insert fixing seat I; 283. Cutting insert fixing seat II; 284. Locking screw; 285. Adjusting fixing block; 286. Pressure block; 287. Pressure plate; 288. Chamfering cutting insert; 289. Triangular grooving cutting insert; 280. Adjusting groove; 29. ​​Drive motor II; 291. Bracket; 3. Step repair mechanism;

[0064] 4. Conveyor rack; 41. Rack; 411. Connecting corner plate; 412. Casters; 413. Support legs; 414. Extension support plate; 415. Mounting frame three; 42. Top rod; 43. Conveying structure; 431. Fixing rod; 432. Mounting frame one; 433. Mounting frame two; 434. Motor; 435. Coupling two; 436. Connecting plate; 437. Conveyor belt; 44. Guide plate; 45. Push plate; 451. Electro-hydraulic device; 452. Hydraulic rod;

[0065] 5. Loading trolley; 51. Frame; 511. First caster wheel; 52. Pallet; 521. Bar stock placement trough;

[0066] 6. Material unloading trolley; 61. Lower frame; 611. Two moving wheels; 62. Upper frame; 63. Partition frame; 64. Front rod; 65. Rear rod; 66. Fixed rod; 67. Reinforcing rod; 68. Stop bar. Detailed Implementation

[0067] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0068] Please see Figures 1-21 The present invention provides a technical solution: an automatic trimming machine tool suitable for multi-specification bars, including a feeding mechanism 1, a flat surface trimming mechanism 2, a step trimming mechanism 3, a conveying rack 4, a loading cart 5, and a unloading cart 6. The flat surface trimming mechanism 2 and the step trimming mechanism 3 are respectively located at both ends of the feeding mechanism 1. Both the flat surface trimming mechanism 2 and the step trimming mechanism 3 include a cutting disc 28. The cutting discs 28 located at both ends are used to cut the neutral surface of the bar spindle and the step, respectively.

[0069] The conveyor rack 4 is located at the front end of the feeding mechanism 1, and the conveyor structure 43 is installed and distributed above the conveyor rack 4;

[0070] The loading trolley 5 is located at the front end of the conveyor frame 4;

[0071] The feeding trolley 6 is located at the rear end of the feeding mechanism 1.

[0072] Further improvements include a fixed frame 11, a support plate 12, a pad 13, a material feeding plate 14, a horizontal motor 15, and a hexagonal connecting rod 151. A movable support structure 111 is installed at the bottom of the fixed frame 11. The pad 13 is symmetrically installed at the upper end of the fixed frame 11. The support plate 12 is fixedly installed at the inner top of the pad 13. The material feeding plate 14 is movably connected to the inner side of the support plate 12. A slot 140 is provided on the upper part of the material feeding plate 14, and a slot 121 is provided on the upper part of the support plate 12.

[0073] The movable support structure 111 is used to stabilize or move the fixed frame 11. The pad 13 is used to install the support plate 12 at the upper end. The support plate 12 is used to adjust the material feeding plate 14 at the inward end. The slot 2 140 and the slot 121 are both used to hold the bar material.

[0074] Further improvements include a gasket 131 mounted on the upper end of the pad 13, a horizontal motor 15 mounted on the upper end of the gasket 131, a coupling 152 connected to the output end of the horizontal motor 15, a right end of a hexagonal connecting rod 151 mounted on the left end of the coupling 152, a fixed gear 155 and a drive sprocket 154 fixedly mounted at both ends of the hexagonal connecting rod 151 respectively, and a bearing seat 153 rotatably connected to both ends of the hexagonal connecting rod 151, with the bearing seat 153 mounted on the inner end of the support plate 12.

[0075] A driven sprocket 124 is provided at the front end of the outer side of the support plate 12 located at the right end. A movable shaft plate 125 is connected through the inner end of the driven sprocket 124. A movable shaft 1251 is rotatably connected to the inner end of the movable shaft plate 125. A movable shaft plate 126 is provided at the rear end of the outer side of the support plate 12 located at the right end. Both the movable shaft 1251 and the movable shaft plate 126 are connected to the outer end of the feeding plate 14.

[0076] The outer end of the material feeding plate 14 located on the right end is fixedly provided with a longitudinal slide rail 183, the outer end of the longitudinal slide rail 183 is slidably connected with a slider 182, the outer end of the slider 182 is fixedly provided with a slider 181, and the outer end of the slider 181 is slidably connected with a transverse slide rail 18.

[0077] The shim 131 is used to mount the horizontal motor 15 at the upper end. The horizontal motor 15 is used to drive the control coupling 152 to rotate. The coupling 152 is used to drive the hexagonal connecting rod 151, the drive sprocket 154 and the fixed gear 155 to rotate. The bearing seat 153 is used to install to the inner end of the support plate 12 to stably support the rotation of the hexagonal connecting rod 151. The drive sprocket 154 is used to drive the driven sprocket 124 through the chain, thereby driving the movable shaft plate 125 and the movable shaft 1251 to rotate. At the same time, the movable shaft plate 126 is used to assist in the movable adjustment of the right end of the material-pulling plate 14. The right end of the material-pulling plate 14 is located at the outer end of the slider 182 and the slider 181 through the inner horizontal slide rail 18 and the longitudinal slide rail 183 to stably support the sliding adjustment. The fixed gear 155 is used to rotate the gear 1231 through the chain drive.

[0078] In a further improvement, a rotating gear 1231 is provided at the front end of the outer side of the support plate 12 at the left end, and a movable shaft plate 123 is connected through the inner end of the rotating gear 1231. A movable shaft plate 122 is provided at the rear end of the outer side of the support plate 12 at the left end. Both the movable shaft plate 123 and the movable shaft plate 122 are connected to the outer end of the feeding plate 14.

[0079] An extension plate 141 is fixedly connected to the lower end of the feeding plate 14;

[0080] The rotating gear 1231 is used to drive the second movable shaft plate 123 to rotate, the first movable shaft plate 122 is used to assist the left end of the material feeding plate 14 in adjusting its movement, and the extension plate 141 is used for downward vertical support.

[0081] Further improvements include a protective cover 161 installed on the outside of the drive sprocket 154 and the driven sprocket 124, a protective cover 162 installed on the outside of the rotating gear 1231 and the fixed gear 155, a protective frame 16 installed on the outside of the coupling 152, and a protective frame 163 installed on the outside of the hexagonal connecting rod 151.

[0082] A hook 17 is installed on the side end of the support plate 12;

[0083] Protective cover 161 is used to protect the driving sprocket 154 and the driven sprocket 124. Protective cover 162 is used to protect the rotating gear 1231 and the fixed gear 155. Protective frame 16 and protective frame 163 are used to protect the coupling 152 and the hexagonal connecting rod 151. Hook 17 is used to position and lock the unloading trolley 6.

[0084] Further improvements include a symmetrical structure for the plane repair mechanism 2 and the step repair mechanism 3, which includes a control panel 20, a second pad 21, a storage box 22, a first drive motor 23, a moving block 231, a sliding plate 232, a base frame 25, a second movable support structure 251, a lower clamp 27, a second drive motor 29, and a bracket 291. The second pad 21 is installed at the upper end of the storage box 22, the base frame 25 is installed at the lower end of the storage box 22, the second movable support structure 251 is installed at the bottom corner of the base frame 25, and the control panel 20 is installed at the top corner of the second pad 21.

[0085] The movable block 231 is installed on the top of the pad 21 near the inner end, the slide plate 232 is slidably connected to the upper end of the movable block 231, the second drive motor 29 is installed on the outer end of the bracket 291, the bracket 291 is fixedly installed on the top of the slide plate 232 near the rear end, the first drive motor 23 is installed on the outer end of the movable block 231, and the cutting disc 28 is installed on the inner end of the slide plate 232.

[0086] The cutting waste is directly discharged into the collection box 22 through the guide chute of the flat surface repair mechanism 2 and the step repair mechanism 3, avoiding the accumulation of waste and interfering with the processing, realizing unmanned operation and reducing downtime by 20%. The first drive motor 23 is used to drive and control the sliding plate 232 to move and adjust its position at the upper end of the moving block 231, and the second drive motor 29 is used to drive and control the cutting disc 28.

[0087] Further improvements include a connecting shaft 281 connected to the outer end of the cutting disc 28, an adjustment groove 280 opened at the inner end of the cutting disc 28, a first cutting tool holder 282 and a second cutting tool holder 283 provided in the middle of the inner part of the adjustment groove 280, an adjustment fixing block 285 and a pressure block 286 installed at the outer ends of the first cutting tool holder 282 and the second cutting tool holder 283 by locking screws 284, a chamfered cutting tool 288 installed on the inner side of the adjustment fixing block 285, a triangular slotted cutting tool 289 installed at the upper end of the first cutting tool holder 282, and a pressure plate 287 installed at the outer end of the pressure block 286;

[0088] A protective box 24 is installed at the top inner end of the pad 21. An electric telescopic device 26 is installed at the upper end of the protective box 24. An upper clamp 261 is connected to the lower end of the electric telescopic device 26. A lower clamp 27 is fixedly installed at the top inner end of the pad 21.

[0089] Auxiliary sliding plates 241 are installed on both ends of the inner side of the protective box 24;

[0090] The upper chuck 261 and the lower chuck 27 are used to control the clamping of both ends of the bar stock. For bars with different cutting steps and diameters, the cutting tool can be adjusted quickly, conveniently and flexibly, effectively preventing the parts from deforming due to excessive cutting force during the cutting process.

[0091] Further improvements include a material rack 41, a connecting corner plate 411, casters 412, support legs 413, a push rod 42, a push plate 45, and an electro-hydraulic device 451. The push rod 42 is fixedly distributed at the upper end of the material rack 41. Guide plates 44 are installed at both ends of the top of the material rack 41. An extension support plate 414 is installed at the front end of the material rack 41. An installation frame 3 415 is installed at the outer end of the material rack 41. The electro-hydraulic device 451 is fixedly installed at the outer end of the installation frame 3 415. A hydraulic rod 452 is connected through the inner end of the electro-hydraulic device 451. The push plate 45 is fixedly installed at the inner end of the hydraulic rod 452.

[0092] The conveying structure 43 includes a fixed rod 431, a connecting plate 436, and a conveyor belt 437. The connecting plate 436 is fixedly distributed on the side end of the fixed rod 431. The two ends of the fixed rod 431 are equipped with a first mounting bracket 432 and a second mounting bracket 433. The first mounting bracket 432, the second mounting bracket 433, and the connecting plate 436 are fixedly located on the side end of the top rod 42. The side end of the first mounting bracket 432 is connected to a second coupling 435. The outer end of the second coupling 435 is connected to a motor 434. The inner end of the second coupling 435 is connected to a toothed cylinder. The conveyor belt 437 is sleeved between the toothed cylinders.

[0093] The guide plate 44 is used to precisely guide and convey the bar stock. The electro-hydraulic device 451 and the hydraulic rod 452 are used to automatically control the extension and retraction adjustment of the push plate 45. The push plate 45 is used to clamp and position the bar stock to prevent it from scattering. The motor 434 is used to control the rotation of the coupling 435 and the gear cylinder, which drives the conveyor belt 437 to transmit the bar stock forward.

[0094] Further improvements include a loading trolley 5 comprising a frame 51 and a pallet 52. A movable wheel 511 is installed at the bottom corner of the frame 51. The pallet 52 is fixedly distributed on the upper end of the frame 51. A bar material placement groove 521 is provided in the middle of the upper end of the pallet 52.

[0095] The bar stock placement groove 521 has a certain depth to facilitate the storage of multiple bars.

[0096] Specifically, the material unloading trolley 6 includes a lower frame 61, an upper frame 62, a partition frame 63, a front rod 64, a rear rod 65, a fixed rod 66, and a stop bar 68. A movable wheel 611 is installed at the bottom corner of the lower frame 61. The front rod 64 is fixedly installed at the front end of the lower frame 61 and the upper frame 62. The rear rod 65 is fixedly installed at the rear end of the lower frame 61 and the upper frame 62. The partition frame 63 is fixedly installed in the middle of the lower frame 61 and the upper frame 62.

[0097] The fixing rod 66 is fixedly installed at the upper end between the rear rod 65, the stop rod 68 is fixedly installed at the upper end of the upper frame 62 and the upper end of the front rod 64 in an oblique structure, and the reinforcing rods 67 are fixedly distributed between the front rod 64, the rear rod 65 and the lower frame 61.

[0098] The inclined bar 68 allows the bar stock to be stored at the top of the upper frame 62, which can accommodate multiple trimmed bars and reduce the frequency of manual handling.

[0099] Used for cutting bar stock of various specifications in hardware raw materials, it can cut bar stock of various diameters. Unlike traditional small manual lathes where the locking head is changed by tightening and loosening the nut each time, it is convenient and simple. The clamp can be inserted and pulled out without tightening or loosening the thread. Compared with tightening and loosening the nut, the quick insertion and removal is faster and safer to operate.

[0100] This automatic material trimming machine, used in the hardware industry, requires precise clamping when cutting raw materials of various diameters. The clamps must be changed to ensure the tool center is coaxial with the raw material center, with an accuracy within 0.2mm. It employs a convex-concave fit structure with a clearance of 0.02mm, and is made of 45# steel with a surface hardening degree of HRB45. The machine is installed on the machine head, and the corresponding chuck is installed according to the diameter of the raw material to meet the cutting needs of various raw material specifications. Unlike traditional semi-automatic small lathes with manual thread tightening and loosening of the locking lugs, this machine only requires insertion and removal, making it more convenient to operate, safer, and faster to replace.

[0101] For metal raw material bars with diameters from Φ10 to Φ40mm, any one of these specifications can be placed manually on the automatic feeding rack to achieve automatic cutting of planes and steps, and the waste material from the cutting will be automatically discharged into the waste collection box.

[0102] The automatic feeding rack has a quick positioning mechanism. Because the bar stock is of different lengths, the quick positioning mechanism will push the bar stock to the same position each time.

[0103] Once the feeding mechanism detects that the bar stock has been positioned, it will feed it to the step-cutting machine head for cutting.

[0104] After the step-cutting mechanism completes the cutting, the material feeding mechanism will feed it to the unloading trolley, thus completing the step-cutting of the bar stock.

[0105] It consists of a material feeding mechanism 1, a flat surface repair mechanism 2, a step repair mechanism 3, a conveyor rack 4, a loading cart 5, and a unloading cart 6. Compared with the traditional method, this invention uses the material feeding mechanism and the conveyor belt on the rack to feed the raw material bars on the rack one by one to the step repair and flat surface repair machine head for cutting.

[0106] The finishing head 2 is secured to a 750W slide table by a 2.2KW spindle with four M12 screws and four ¢10mm pins, and then to the machine frame base plate with four M16 screws and four ¢10mm pins. This connection method can ensure that the neutral surfaces of the spindle and the slide table coincide, ensuring that the concentricity of the bar stock step is within 0.25. The cutting tool uses a custom triangular cutting tool with a cutting edge length of 25mm, which can ensure the cutting range of bar stock with a diameter of ¢10 to ¢23mm, thus eliminating the problem of the center point boss on the end face of the bar stock.

[0107] The step-cutting head 3 consists of a 2.2KW spindle secured to a 750W slide table via four M12 screws and four ¢10mm pins, and further secured to the machine frame base plate via four M16 screws and four ¢10mm pins. This connection method ensures that the neutral surfaces of the spindle and the slide table coincide, guaranteeing that the concentricity of the bar stock step is within 0.25. The cutting tool uses a 16mm long triangular cutting tool. By adjusting the set screw on the side of the tool holder and the M5 socket head cap screw, it can handle bar stock with diameters from ¢10 to ¢23mm, achieving step diameters of ¢7mm, ¢12mm, and ¢14mm.

[0108] The feeding mechanism 1 is mainly driven by a 180W horizontal motor 15, which rotates the sprocket mounted on the hexagonal bar. This causes the feeding plate connected to the sprocket to rotate, thus feeding the material one piece at a time. The 180W horizontal motor is fixed to the frame by four M10 hexagonal screws. The hexagonal bar is fastened to the output shaft of the motor via a 25-25 coupling. Two 16A sprockets are used, one mounted on the hexagonal bar and the other on the rotating shaft that fixes the feeding plate. The rotating shaft on the feeding plate is rotated by the 16A chain drive, causing the feeding plate to rotate along with it, thus feeding the material.

[0109] The conveyor belt 4 is assembled by tightening and adjusting the belt tension at both ends of the active and driven pulleys fixed at both ends of the 60 aluminum profile, and then locking the aluminum connecting plate. The belt is close to the upper surface of the 60 aluminum profile and can bear a load of 350Kg, which can meet the weight of the bar stock on the rack.

[0110] This invention can achieve cutting of raw material bars with diameters of ¢10 to ¢40mm simply by quickly inserting and removing the chuck; no manual brute force is required for cutting, only feeding through the feeding mechanism and clamping by the hydraulic cylinder; cutting does not generate any throwing force, so no noise is generated; during cutting, waste material will not fly and burn the operators.

[0111] The groove structure of this invention effectively solves the problem of slight uniformity in the cutting process; for bars with different cutting step diameters, the cutting tool can be adjusted quickly, conveniently and flexibly.

[0112] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0113] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic trimming machine tool suitable for multi-specification bars, comprising a feeding mechanism, a flattening mechanism, a step trimming mechanism, a conveyor rack, a loading trolley, and an unloading trolley, characterized in that: The planar trimming mechanism and the step trimming mechanism are respectively located at both ends of the feeding mechanism. Both the planar trimming mechanism and the step trimming mechanism include a cutting disc. The cutting discs located at both ends are used to cut the neutral surface of the bar stock spindle and the step, respectively. The material feeding mechanism includes a fixed frame, a support plate, a pad, a feeding plate, a horizontal motor, and a hexagonal connecting rod. A movable support structure is installed at the bottom of the fixed frame. The pad is symmetrically installed at the top of the fixed frame. The support plate is fixedly installed at the top inner end of the pad. The feeding plate is movably connected to the inner end of the support plate. A slot 2 is provided above the feeding plate, and a slot 1 is provided above the support plate. A gasket is installed on the upper end of the pad plate 1. The horizontal motor is installed on the upper end of the gasket. The output end of the horizontal motor is connected to a coupling 1. The right end of the hexagonal connecting rod is installed on the left end of the coupling 1. A fixed gear and a drive sprocket are fixedly provided at both ends of the hexagonal connecting rod, and a shaft seat is rotatably connected at both ends of the hexagonal connecting rod. The shaft seat is installed on the inner end of the support plate. A driven sprocket is provided at the front end of the outer side of the support plate located at the right end. The inner end of the driven sprocket is connected to a movable shaft plate three. The inner end of the movable shaft plate three is rotatably connected to a movable shaft. A movable shaft plate four is provided at the rear end of the outer side of the support plate located at the right end. Both the movable shaft and the movable shaft plate four are connected to the outer end of the feeding plate. The outer end of the material feeding plate located on the right end is fixedly provided with a longitudinal slide rail, the outer end of the longitudinal slide rail is slidably connected with a second slider, the outer end of the second slider is fixedly provided with a first slider, and the outer end of the first slider is slidably connected with a transverse slide rail. A rotating gear is provided at the front end of the outer side of the support plate located on the left end. The inner end of the rotating gear is connected to a second movable shaft plate. A first movable shaft plate is provided at the rear end of the outer side of the support plate located on the left end. Both the second movable shaft plate and the first movable shaft plate are connected to the outer end of the feeding plate. An extension plate is fixedly connected to the lower end of the feeding plate; The plane repair mechanism and the step repair mechanism are symmetrical in structure and include a control panel, a second pad, a storage box, a first drive motor, a moving block, a sliding plate, a base frame, a second moving support structure, a lower clamp, a second drive motor, and a bracket. The second pad is installed at the upper end of the storage box, the base frame is installed at the lower end of the storage box, the second moving support structure is installed at the bottom corner of the base frame, and the control panel is installed at the top corner of the second pad. The movable block is installed on the top of the pad plate two near the inner end, the slide plate is slidably connected to the upper end of the movable block, the second drive motor is installed on the outer end of the bracket, the bracket is fixedly installed on the top of the slide plate near the rear end, the first drive motor is installed on the outer end of the movable block, and the cutting disc is installed on the inner end of the slide plate. The conveyor frame is located at the front end of the feeding mechanism, and a conveying structure is installed and distributed above the conveyor frame; The loading trolley is located at the front end of the conveyor rack; The feeding trolley is located at the rear end of the feeding mechanism.

2. The automatic trimming machine tool suitable for multi-specification bars according to claim 1, characterized in that: The driving sprocket and the driven sprocket are equipped with a protective cover one, the rotating gear and the fixed gear are equipped with a protective cover two, the coupling one is equipped with a protective frame one, and the hexagonal connecting rod is equipped with a protective frame two. The support plate is equipped with hooks on its side ends.

3. The automatic trimming machine tool suitable for multi-specification bars according to claim 1, characterized in that: The outer end of the cutting disc is connected to a connecting shaft, and the inner end of the cutting disc is provided with an adjustment groove. The middle of the adjustment groove is provided with a first cutting tool holder and a second cutting tool holder. The outer ends of the first cutting tool holder and the second cutting tool holder are equipped with an adjustment fixing block and a pressure block by locking screws. The inner side of the adjustment fixing block is equipped with a chamfered cutting tool. The upper end of the first cutting tool holder is equipped with a triangular slotted cutting tool. The outer end of the pressure block is equipped with a pressure plate. A protective box is installed at the top inner end of the second pad, an electric telescopic device is installed at the upper end of the protective box, an upper clamp is connected to the lower end of the electric telescopic device, and the lower clamp is fixedly installed at the top inner end of the second pad. The protective box has auxiliary sliding plates installed at both ends of its inner side.

4. An automatic trimming machine tool suitable for multi-specification bars according to claim 1, characterized in that: The conveyor rack includes a rack, connecting corner plates, casters, support legs, push rods, push plates, and an electro-hydraulic device. The push rods are fixedly distributed at the upper end of the rack. Guide plates are installed at both ends of the top of the rack. Extended support plates are installed at the front end of the rack. A mounting frame three is installed at the outer end of the rack. The electro-hydraulic device is fixedly located at the outer end of the mounting frame three. A hydraulic rod is connected through the inner end of the electro-hydraulic device. The push plate is fixedly located at the inner end of the hydraulic rod.

5. An automatic trimming machine tool suitable for multi-specification bars according to claim 1, characterized in that: The loading trolley includes a frame and a pallet. A movable wheel is installed at the bottom corner of the frame. The pallet is fixedly distributed at the upper end of the frame, and a bar placement groove is opened at the middle of the upper end of the pallet.

6. An automatic trimming machine tool suitable for multi-specification bars according to claim 1, characterized in that: The unloading trolley includes a lower frame, an upper frame, a partition, a front rod, a rear rod, a fixed rod, and a stop bar. A second movable wheel is installed at the bottom corner of the lower frame. The front rod is fixedly installed at the front end of the lower frame and the upper frame. The rear rod is fixedly installed at the rear end of the lower frame and the upper frame. The partition is fixedly installed in the middle of the lower frame and the upper frame. The fixing rod is fixedly installed at the upper end between the rear rods, the stop bar is fixedly installed at the upper end of the upper frame and the upper end of the front rod in an oblique structure, and reinforcing rods are fixedly distributed between the front rod, the rear rod and the lower frame.

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