Inverted trapezoidal horizontal machining center

Abstract

The application discloses an inverted ladder horizontal machining center, which comprises a fixing table, a machining table and a workbench, the machining table comprises a sliding frame, a rotating wheel, a working tool head and a clamp, the fixing table is fixedly connected with the side surface of the workbench, the bottom of the fixing table is horizontally aligned with the bottom of the workbench, the inside of the fixing table is provided with a cavity, the machining table is arranged in the cavity of the fixing table and slides up and down and is parallel to the workbench, the sliding frame is slidably connected to the upper surface of the machining table, the rotating wheel is installed on the side wall of the sliding frame, the working tool head is nestedly installed on the rotating wheel and faces the workbench, and the clamp is installed on the machining table and is located at the two sides of the end close to the workbench and corresponds to the position of the rotating wheel. The application adjusts the tool feed angle by rotating the tool, improves the machining precision, is provided with a spare tool, ensures continuous work of the device when the tool is replaced, can be transformed between the vertical structure and the horizontal structure, and has the advantages of the two machining centers.

Description

Technical Field

[0001] This invention relates to the field of machining center technology, specifically to an inverted ladder horizontal machining center. Background Technology

[0002] As a relatively advanced type of CNC machine tool, the machining center evolved from the CNC milling machine. According to the structure of the machining center, it can be divided into vertical machining centers and horizontal machining centers. A vertical machining center is a machining center whose spindle axis is perpendicular to the worktable. It is mainly suitable for machining complex parts such as plates, discs, molds, and small shells. Vertical machining centers generally do not have a rotary table and are only used for top surface machining. A horizontal machining center is a machining center whose spindle axis is parallel to the worktable. It is mainly suitable for machining box-shaped parts. Compared with vertical machining centers, horizontal machining centers are easier to remove chips during workpiece machining and are more advantageous for machining complex concave parts and mold cavities. Due to the structural advantages of horizontal machining centers, they can machine large workpieces. Simply put, workpieces that are difficult or impossible to machine on vertical machining centers can be machined on horizontal machining centers. However, the disadvantages of horizontal machining centers are that they occupy a large area, have a complex structure, are more expensive than vertical machining centers, are inconvenient to debug programs on horizontal machining centers, are difficult to observe the tool movement trajectory during machining, are inconvenient to load and unload workpieces, and are difficult to measure the machined workpieces. In order to improve machining efficiency and machining accuracy, a horizontal machining center with the advantages of vertical machining centers is needed.

[0003] In the prior art, Chinese patent CN215967424U discloses an inverted movable slide for a vertical machining center, including a machining table and machining equipment, and a movable slide for placing the part to be machined and for driving the part to move axially. The movable slide includes a first lead screw slide mounted on the machining table, a second lead screw slide mounted on the first lead screw slide, and a placement plate mounted on the second lead screw slide. This device achieves stable part machining by using a different mounting method and driving direction between the first and second lead screw slides compared to traditional movable slides, and also ensures that the second lead screw slide remains securely mounted on the first lead screw slide even during part machining.

[0004] However, the cutting tools on vertical machining centers are limited by their straight-up-down structure and can only perform simple top surface machining. They lack the ability to adjust the tool angle and cannot perform complex machining processes. Furthermore, when changing tools, the machining process must be stopped first, and machining can only continue after the tool is changed, which seriously slows down the machining efficiency. Summary of the Invention

[0005] To address the problems of existing technologies, this invention provides an inverted ladder horizontal machining center, comprising a fixed table, a machining table, and a worktable. The machining table includes a carriage, a rotary wheel, a working tool head, and a clamp. The fixed table is fixedly connected to the side of the worktable, and the bottom of the fixed table is horizontally aligned with the bottom of the worktable. The fixed table has an internal cavity, and the machining table is disposed in the cavity of the fixed table and slides up and down parallel to the worktable. The carriage is slidably connected to the upper surface of the machining table. The rotary wheel is mounted on the side wall of the carriage. The working tool head is nested on the rotary wheel with the working tool head facing the worktable. The clamp is mounted on both sides of the machining table near one end of the worktable and corresponds to the position of the rotary wheel.

[0006] Preferably, the carriage includes a guide rail and baffles. The baffles are installed at both ends of the processing table. The guide rail passes through the carriage and the two ends of the guide rail are fixedly connected to the baffles at both ends of the processing table. The guide rail restricts the movement direction of the carriage on the processing table. The baffles are used to prevent the carriage from sliding off the processing table. Therefore, the height of the baffles needs to be greater than the diameter of the guide rail. The two sets of carriages on the processing table are opposite to each other and move together.

[0007] Preferably, the rotary wheel includes a first spur gear, a second spur gear, a first bevel gear, and a second bevel gear. The first spur gear is mounted on the side wall of the machining table, the second spur gear is mounted on the side of the rotary wheel and meshes with the first spur gear, the first bevel gear is mounted on the side wall of the machining table and is located inside the rotary wheel, the second bevel gear is located inside the rotary wheel and meshes with the first bevel gear, and the second bevel gear is also connected to the working tool head.

[0008] Preferably, the working cutter head includes a fixed interface and a reinforcing pin. The fixed interface is disposed on the wheel surface of the rotary wheel, and the reinforcing pin is mounted around the surface of the fixed interface. At the same time, the front end of the reinforcing pin passes through the fixed interface and the working cutter head. The working cutter head is nested with the fixed interface for quick replacement of the working cutter head. The fixed interface is used to fix the working cutter head to the second bevel gear on the rotary wheel, and the reinforcing pin is used to prevent the nested working cutter head from falling out of the fixed interface.

[0009] Preferably, the clamp includes a spring, a telescopic rod, and a contact pad. One end of the telescopic rod is connected to the clamp, and the other end is connected to the contact pad. The spring is positioned between the clamp and the contact pad and surrounds the telescopic rod. The clamp adjusts the distance between the contact pad and the rotating wheel through the telescopic rod. When the angle of the rotating wheel is adjusted, the telescopic rod retracts to firmly lock the contact pad into the rotating wheel and prevent the rotating wheel from rotating.

[0010] Preferably, the fixed platform is provided with a lifting frame, a support frame, a positioning hole and a reinforcing rod. The lifting frame is installed on the top of the fixed platform and passes through the processing table and is connected to the processing table. The support frame is installed on the fixed platform and is located below the processing table. The positioning hole is located on the side of the fixed platform and the reinforcing rod is installed on the processing table.

[0011] Preferably, the worktable includes a first slide, a second slide, and a placement table. The first slide is installed on the upper surface of the worktable, the second slide is installed above the first slide and slidably connected to the first slide, and the placement table is installed above the second slide and slidably connected to the second slide. The first slide and the second slide are installed in a cross shape on the worktable. The placement table is used to place the workpiece to be processed. The first slide is used to move the placement table laterally on the worktable, and the second slide is used to move the placement table longitudinally on the worktable, so that the placement table can drive the workpiece to be processed to contact the processing table at any position on the plane of the worktable.

[0012] Preferably, the first slide includes a transverse guide rail and a first slide plate. Two first slide plates are installed on both sides of the first slide. The upper surface of the first slide plate is provided with a transverse guide rail. The length of the transverse guide rail is the same as the length of the first slide plate. The first slide plate is used to reinforce the connection between the transverse guide rail and the second slide, bear various forces from the transverse guide rail, and elastically transmit the forces to the worktable, while effectively maintaining the track gauge, direction and position of the track.

[0013] Preferably, the second slide includes a transverse guide rail and a second slide plate. The two second slide plates are installed on both sides of the second slide. The upper surface of the second slide plate is provided with a longitudinal guide rail. The second slide plate is used to reinforce the connection between the longitudinal guide rail and the placement platform and to reduce the dynamic impact of the placement platform on the first slide.

[0014] Preferably, the placement table is provided with slots and mounting holes. The slot array is distributed on the upper surface of the placement table, and a mounting hole is provided between every two slots. The slots are used to install clamping components to strengthen the connection between the workpiece and the placement table. When the device forms a vertical processing structure, the force exerted by the processing table on the workpiece is vertically downward. When the device forms a horizontal processing structure, the processing table generates a lateral thrust on the workpiece. The mounting holes provide force points for the clamping components to assist the clamping components in strengthening the fixation of the workpiece, so as to ensure that the workpiece does not shift.

[0015] The advantages of this invention compared to the prior art are:

[0016] 1. This invention improves machining accuracy by adjusting the feed angle of the cutting tool by rotating the cutting tool. Specifically, the working tool head is moved on the worktable by the slide, and the working tool head is rotated by the rotating wheel to process the workpiece on the worktable.

[0017] 2. The present invention is equipped with a spare tool to ensure continuous operation of the device when changing the tool. Specifically, it is equipped with two sets of slides, one set for processing and the other set for backup. The two sets of slides on the processing table are opposite to each other to avoid the two sets of slides processing at the same time and affecting the processing efficiency.

[0018] 3. This invention can switch between vertical and horizontal structures, and has the advantages of both machining centers. Specifically, the rotary wheel adjusts the contact angle between the working head and the workpiece by rotating. When the working head is perpendicular to the fixed table, it forms a horizontal machining position. When the working head rotates to be parallel to the fixed table, the device forms a vertical machining position. Attached Figure Description

[0019] Figure 1 This is a 3D view of an inverted ladder horizontal machining center.

[0020] Figure 2 This is a three-dimensional view of an inverted ladder horizontal machining center from another perspective.

[0021] Figure 3 This is a three-dimensional view of the machining table in an inverted ladder horizontal machining center.

[0022] Figure 4 This is a 3D diagram of a clamp in an inverted ladder horizontal machining center.

[0023] Figure 5 This is a three-dimensional view of the rotary wheel in an inverted ladder horizontal machining center.

[0024] Figure 6 This is a three-dimensional view of the lifting frame and support frame in an inverted ladder horizontal machining center.

[0025] Figure 7 This is a front view of the fixed table in an inverted ladder horizontal machining center.

[0026] Figure 8 This is a three-dimensional view of the worktable in an inverted ladder horizontal machining center.

[0027] Figure 9 This is a three-dimensional view of the second slide in an inverted ladder horizontal machining center.

[0028] Figure 10 This is a three-dimensional view of the platform placed in an inverted ladder horizontal machining center.

[0029] The following are the labels in the diagram: 1. Fixed table; 2. Machining table; 21. Slide; 211. Guide rail; 212. Baffle; 22. Rotary wheel; 221. First spur gear; 222. Second spur gear; 223. First bevel gear; 224. Second bevel gear; 23. Working cutter head; 231. Fixed interface; 232. Reinforcing nail; 24. Clamp; 241. Spring; 242. Telescopic rod; 243. Contact pad; 3. Worktable; 31. First slide; 311. Transverse guide rail; 312. First slide plate; 32. Second slide; 321. Longitudinal guide rail; 322. Second slide plate; 33. Placement table; 331. Slot; 332. Mounting hole; 4. Lifting frame; 5. Support frame; 6. Positioning hole; 7. Reinforcing rod. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1-10 As shown, an inverted ladder horizontal machining center includes a fixed table 1, a machining table 2, and a worktable 3. The machining table 2 includes a slide 21, a rotary wheel 22, a working tool head 23, and a clamp 24. The fixed table 1 is fixedly connected to the side of the worktable 3, and the bottom of the fixed table 1 is horizontally aligned with the bottom of the worktable 3. The fixed table 1 has a cavity inside. The machining table 2 is set in the cavity of the fixed table 1 and slides up and down parallel to the worktable 3. The slide 21 is slidably connected to the upper surface of the machining table 2. The rotary wheel 22 is installed on the side wall of the slide 21. The working tool head 23 is nested on the rotary wheel 22 and faces the worktable 3. The clamp 24 is installed on both sides of the machining table 2 near the end of the worktable 3 and corresponds to the position of the rotary wheel 22.

[0032] The machining center has two sets of carriages 21 on the machining table 2, one set for machining and the other set for standby. This device uses the carriages 21 to move the working head 23 on the worktable 3, while simultaneously using a rotating wheel 22 to rotate the working head 23 to machine the workpiece on the worktable 3. During machining, the rotating wheel 22 adjusts the contact angle between the working head 23 and the workpiece by rotating. The working head 23 is perpendicular to the fixed table 1, forming a horizontal machining position. When the working head 23 rotates to be parallel to the fixed table 1, the device… In vertical machining, the rotary wheel 22 is also used to change the model of the working head 23 on the spare slide 21. The spare slide 21 is moved to the side of the fixed table 1 away from the worktable 3, and then the rotary wheel 22 on the spare slide 21 is rotated to make the spare working head 23 flip horizontally to complete the replacement. During this process, the machining center continues to work without stopping and affecting efficiency. The clamp 24 is used to reinforce the stopping angle of the rotary wheel 22 when it stops, so as to avoid the reaction force generated when the working head 23 contacts the workpiece and causes the rotary wheel 22 to deviate.

[0033] See Figures 1-3 As shown, the carriage 21 includes a guide rail 211 and a baffle 212. The baffle 212 is installed at both ends of the processing table 2. The guide rail 211 passes through the carriage 21 and the two ends of the guide rail 211 are fixedly connected to the baffles 212 at both ends of the processing table 2.

[0034] The guide rail 211 restricts the movement direction of the carriage 21 on the processing table 2. The baffle 212 is used to prevent the carriage 21 from sliding out of the processing table 2. Therefore, the height of the baffle 212 needs to be greater than the diameter of the guide rail 211. The two sets of carriages 21 on the processing table 2 are opposite to each other and move together. When one set is working at the front end of the processing table 2, the other set is on standby at the rear end of the processing table 2 so that the operator can change the working tool head 23. The movement of the two sets of carriages 21 together can avoid the situation where the two sets of carriages 21 are processing at the same time.

[0035] See Figures 1-5 As shown, the rotary wheel 22 includes a first spur gear 221, a second spur gear 222, a first bevel gear 223, and a second bevel gear 224. The first spur gear 221 is mounted on the side wall of the machining table 2. The second spur gear 222 is mounted on the side of the rotary wheel 22 and meshes with the first spur gear 221. The first bevel gear 223 is mounted on the side wall of the machining table 2 and is located inside the rotary wheel 22. The second bevel gear 224 is located inside the rotary wheel 22 and meshes with the first bevel gear 223. At the same time, the second bevel gear 224 is also connected to the working cutter head 23.

[0036] The first spur gear 221 acts as the driving gear, driving the second spur gear 222, which acts as the driven gear, to rotate, thereby controlling the rotation angle of the rotary wheel 22. The first bevel gear 223 acts as the driving gear, driving the second bevel gear 224 to rotate, which in turn drives the working cutter head 23 to rotate. Since the rotation of the rotary wheel 22 caused by the second spur gear 222 will cause rotation between the first bevel gear 223 and the second bevel gear 224, when adjusting the angle of the rotary wheel 22, the working cutter head 23 should be kept away from the workpiece to avoid insufficient rotation of the working cutter head 23, which would affect the machining accuracy.

[0037] See Figure 5 As shown, the working head 23 includes a fixed interface 231 and a reinforcing nail 232. The fixed interface 231 is disposed on the wheel surface of the rotating wheel 22, and the reinforcing nail 232 is mounted around the surface of the fixed interface 231. At the same time, the front end of the reinforcing nail 232 passes through the fixed interface 231 and the working head 23.

[0038] The working cutter head 23 is nested with the fixed interface 231 for quick replacement. The fixed interface 231 is used to fix the working cutter head 23 to the second bevel gear 224 on the rotary wheel 22. The reinforcing nail 232 is used to prevent the nested working cutter head 23 from falling out of the fixed interface 231. When replacing the working cutter head 23, unscrew all the reinforcing nails 232 on the fixed interface 231 to directly remove the working cutter head 23 nested in the fixed interface 231 for replacement.

[0039] See Figures 1-4As shown, the clip 24 includes a spring 241, a telescopic rod 242 and a contact pad 243. One end of the telescopic rod 242 is connected to the clip 24 and the other end is connected to the contact pad 243. The spring 241 is disposed between the clip 24 and the contact pad 243 and surrounds the telescopic rod 242.

[0040] The clamp 24 adjusts the distance between the contact pad 243 and the rotary wheel 22 via the telescopic rod 242. When the angle of the rotary wheel 22 is adjusted, the telescopic rod 242 retracts, causing the contact pad 243 to firmly lock the rotary wheel 22 and prevent it from rotating. When machining a workpiece, the working cutter head 23 receives the reaction force from the workpiece and transmits it to the rotary wheel 22, driving it to rotate. Since the clamp 24 fixes the rotary wheel 22, the telescopic rod 242 on the clamp 24 will bear a large reaction force from the rotary wheel 22. The spring 241 is used to buffer the reaction force of the rotary wheel 22 on the telescopic rod 242, thereby improving the service life of the clamp 24.

[0041] See Figures 6-7 As shown, the fixed platform 1 is equipped with a lifting frame 4, a support frame 5, a positioning hole 6, and a reinforcing rod 7. The lifting frame 4 is installed on the top of the fixed platform 1 and passes through the processing table 2 and is connected to the processing table 2. The support frame 5 is installed on the fixed platform 1 and is located below the processing table 2. The positioning hole 6 is located on the side of the fixed platform 1, and the reinforcing rod 7 is installed on the processing table 2.

[0042] The lifting frame 4 is used to pull the processing table 2 to adjust the distance between the working cutter head 23 on the processing table 2 and the workpiece to be processed on the worktable 3. The support frame 5 is used to prevent the sliding carriage 21 from sliding on the processing table 2 and causing the center of gravity of the processing table 2 to shift, so that the processing table 2 always remains parallel to the worktable 3, and ensures that the contact angle between the working cutter head 23 and the workpiece to be processed does not change. The size of the positioning hole 6 corresponds to the size of the reinforcing rod 7. After the height of the processing table 2 is adjusted, the reinforcing rod 7 is used to lock the positioning hole 6 to ensure that the processing table 2 will not vibrate due to the reaction force of the working cutter head 23.

[0043] See Figures 1-2 As shown, the worktable 3 includes a first slide 31, a second slide 32 and a placement platform 33. The first slide 31 is installed on the upper surface of the worktable 3, the second slide 32 is installed above the first slide 31 and is slidably connected to the first slide 31, and the placement platform 33 is installed above the second slide 32 and is slidably connected to the second slide 32.

[0044] The first slide 31 and the second slide 32 are installed in a cross shape on the worktable 3. The placement table 33 is used to place the workpiece to be processed. The first slide 31 is used to move the placement table 33 laterally on the worktable 3, and the second slide 32 is used to move the placement table 33 longitudinally on the worktable 3. Finally, the placement table 33 drives the workpiece to contact the processing table 2 at any position on the plane of the worktable 3.

[0045] See Figure 8 As shown, the first slide 31 includes a transverse guide rail 311 and a first slide plate 312. Two first slide plates 312 are installed on both sides of the first slide 31, and the transverse guide rail 311 is provided on the upper surface of the first slide plate 312.

[0046] The length of the transverse guide rail 311 is the same as the length of the first slide plate 312. The first slide plate 312 is used to reinforce the connection between the transverse guide rail 311 and the second slide table 32, bear various forces from the transverse guide rail 311, and elastically transmit the forces to the worktable 3, while effectively maintaining the track gauge, direction and position.

[0047] See Figures 1-9 As shown, the second slide 32 includes a transverse guide rail 311 and a second slide plate 322. The two second slide plates 322 are installed on both sides of the second slide 32, and a longitudinal guide rail 321 is provided on the upper surface of the second slide plate 322.

[0048] The second slide plate 322 is used to reinforce the connection between the longitudinal guide rail 321 and the placement platform 33, and to reduce the dynamic impact of the placement platform 33 on the first slide plate 31.

[0049] See Figure 10 As shown, the placement platform 33 is provided with slots 331 and mounting holes 332. The slots 331 are arranged in an array on the upper surface of the placement platform 33, and a mounting hole 332 is provided between every two slots 331.

[0050] The slot 331 is used to install clamping components to reinforce the connection between the workpiece and the placement table 33. When the device forms a vertical processing structure, the force exerted by the processing table 2 on the workpiece is vertically downward. At this time, the clamping components on the slot 331 can be used for simple fixation to perform processing. When the device forms a horizontal processing structure, the processing table 2 generates a lateral pushing force on the workpiece. At this time, the mounting hole 332 provides a force point for the clamping components to assist the clamping components in reinforcing the fixation of the workpiece, so as to ensure that the workpiece will not shift.

[0051] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A horizontal machining center with an inverted ladder, comprising a fixed table (1), a machining table (2) and a worktable (3); Its features are, The processing table (2) includes a slide (21), a rotary wheel (22), a working cutter head (23), and a clamp (24). The fixed table (1) is fixedly connected to the side of the worktable (3), and the bottom of the fixed table (1) is horizontally aligned with the bottom of the worktable (3). The fixed table (1) has a cavity inside. The processing table (2) is set in the cavity of the fixed table (1) and slides up and down parallel to the worktable (3). The slide (21) is slidably connected to the upper surface of the processing table (2). The rotary wheel (22) is installed on the side wall of the slide (21). The working cutter head (23) is nested on the rotary wheel (22) and faces the worktable (3). The clamp (24) is installed on both sides of the processing table (2) near the end of the worktable (3) and corresponds to the position of the rotary wheel (22). The rotary wheel (22) includes a first spur gear (221), a second spur gear (222), a first bevel gear (223), and a second bevel gear (224). The first spur gear (221) is mounted on the side wall of the machining table (2). The second spur gear (222) is mounted on the side of the rotary wheel (22) and meshes with the first spur gear (221). The first bevel gear (223) is mounted on the side wall of the machining table (2) and is located inside the rotary wheel (22). The second bevel gear (224) is located inside the rotary wheel (22) and meshes with the first bevel gear (223). At the same time, the second bevel gear (224) is also connected to the working head (23). The fixed table (1) is provided with a lifting frame (4), a support frame (5), a positioning hole (6) and a reinforcing rod (7). The lifting frame (4) is installed on the top of the fixed table (1) and passes through the processing table (2) to connect with the processing table (2). The support frame (5) is installed on the fixed table (1) and is located below the processing table (2). The positioning hole (6) is located on the side of the fixed table (1). The reinforcing rod (7) is installed on the processing table (2). The carriage (21) includes a guide rail (211) and a baffle (212). The baffle (212) is installed at both ends of the processing table (2). The guide rail (211) passes through the carriage (21) and the two ends of the guide rail (211) are fixedly connected to the baffles (212) at both ends of the processing table (2). The clip (24) includes a spring (241), a telescopic rod (242) and a contact pad (243). One end of the telescopic rod (242) is connected to the clip (24) and the other end is connected to the contact pad (243). The spring (241) is disposed between the clip (24) and the contact pad (243) and surrounds the telescopic rod (242).

2. The inverted ladder horizontal machining center according to claim 1, characterized in that, The working head (23) includes a fixed interface (231) and a reinforcing nail (232). The fixed interface (231) is set on the wheel surface of the rotating wheel (22), and the reinforcing nail (232) is mounted around the surface of the fixed interface (231). At the same time, the front end of the reinforcing nail (232) passes through the fixed interface (231) and the working head (23).

3. The inverted ladder horizontal machining center according to claim 1, characterized in that, The worktable (3) includes a first slide (31), a second slide (32) and a placement table (33). The first slide (31) is installed on the upper surface of the worktable (3). The second slide (32) is installed above the first slide (31) and is slidably connected to the first slide (31). The placement table (33) is installed above the second slide (32) and is slidably connected to the second slide (32).

4. A horizontal machining center with an inverted ladder configuration according to claim 3, characterized in that, The first slide (31) includes a transverse guide rail (311) and a first slide plate (312). Two first slide plates (312) are installed on both sides of the first slide (31), and the upper surface of the first slide plate (312) is provided with a transverse guide rail (311).

5. A horizontal machining center with an inverted ladder configuration according to claim 3, characterized in that, The second slide (32) includes a transverse guide rail (311) and a second slide plate (322). The two second slide plates (322) are installed on both sides of the second slide (32), and a longitudinal guide rail (321) is provided on the upper surface of the second slide plate (322).

6. A horizontal machining center with an inverted ladder configuration according to claim 3, characterized in that, The placement platform (33) is provided with slots (331) and mounting holes (332). The slots (331) are arranged in an array on the upper surface of the placement platform (33), and a mounting hole (332) is provided between every two slots (331).

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