A vertical machine tool

Abstract

The application discloses a vertical machine tool, which comprises a workbench and a chip separation device arranged below the workbench, the workbench comprises a workbench body, a plurality of T-shaped supports and a plurality of blanking holes, the workbench body is provided with a plurality of T-shaped supports arranged in a strip shape and spaced uniformly from front to back, a convex character-shaped fixing groove is formed between two adjacent T-shaped supports, the bottom of the convex character-shaped fixing groove is provided with a blanking hole penetrating through the bottom surface of the workbench body, the blanking holes are arranged in a row along the length direction of the convex character-shaped fixing groove, the cross section of the blanking hole gradually decreases from top to bottom, and the upper ends of the blanking holes are connected together, the chip separation device comprises a collecting hopper, a chip filtering and conveying mechanism and a liquid storage tank, the liquid storage tank is provided with the collecting hopper and the chip filtering and conveying mechanism arranged below the collecting hopper and extending out of the liquid storage tank at the front end, compared with the prior art, the vertical machine tool can improve work efficiency, reduce manual work load and is convenient to clean.

Description

Technical Field

[0001] This invention relates to the technical field of mechanical equipment, and in particular to the technical field of a vertical machine tool. Background Technology

[0002] A vertical machine tool is a type of machine tool in which the machining spindle is set vertically. During machining, it is used with a material clamping table to cut and process workpieces with large diameters or cross-sections. When using a vertical CNC machine tool, the material table is the main carrier for carrying the workpiece. In order to achieve high machining accuracy, the surface of the material table is mostly set horizontally. To facilitate the clamping of the workpiece, several fixture mounting slots are opened on the top of the material table.

[0003] When the workpiece is being processed on the table, the metal chips cut off from the workpiece will fall naturally onto the material table and into the fixture mounting slot with the cutting fluid. During continuous processing, some chips will be washed away from the material table by the cutting fluid, while others will accumulate on the surface of the material table and in the fixture mounting slot, requiring manual cleaning, which increases the workload and is extremely inconvenient.

[0004] In addition, machine tools often use coolant to cool the cutting head when milling workpieces to increase the cutting head's service life. This causes the coolant to mix with the metal shavings generated during the machining process. Directly recycling the coolant can easily cause the coolant circulation system to malfunction due to the metal shavings. If the coolant is not recycled, it will lead to waste and increase production costs.

[0005] Chinese Patent Publication No. CN215691973U discloses a chip filtering device for machining center machine tools, relating to the field of chip filtering technology for machining center machine tools. The device includes a cutting fluid tank, a motor mounting base on the side of the tank, a motor bracket mounted on the mounting base, a motor mounted on the bracket, a gear mounted on the motor, and a rack engaging with the gear. The rack is positioned below a pad, which is fixed to a movable chassis. Wheels are mounted on the side of the movable chassis and positioned on top of the cutting fluid tank. The movable chassis is equipped with coarse and fine filter screens. Although the aforementioned patent can filter debris from the cutting fluid, the filtered debris remains stationary on the filter screens during the filtration process, causing the filter screens to become clogged and affecting the filtration effect. This necessitates periodic shutdowns for manual cleaning, thus impacting work efficiency and increasing manual workload. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a vertical machine tool that can improve work efficiency, reduce manual workload, and facilitate cleaning.

[0007] To achieve the above objectives, this invention proposes a vertical machine tool, including a worktable and a chip separation device disposed below the worktable. The worktable includes a worktable body, several T-shaped supports, and several discharge holes. The worktable body is provided with elongated T-shaped supports evenly spaced from front to back. Adjacent T-shaped supports form a U-shaped fixing groove. The bottom of each U-shaped fixing groove is provided with a discharge hole penetrating the bottom surface of the worktable body. The discharge holes are arranged in a row along the length of the U-shaped fixing groove, and the cross-section of the discharge holes gradually decreases from top to bottom. The upper ends of the discharge holes are connected together sequentially. The chip separation device... The device includes a collection hopper, a chip filtering and conveying mechanism, and a liquid storage tank. The liquid storage tank contains the collection hopper and the chip filtering and conveying mechanism located below the collection hopper and extending out of the liquid storage tank. The chip filtering and conveying mechanism includes a support, a conveying filter belt, a liquid receiving trough, a drain pipe, and a chip receiving trough. The support has a liquid receiving trough located below the upper layer of the conveying filter belt. One end of the drain pipe is connected to the bottom of the liquid receiving trough, and the other end has a backwashing mechanism located above the rear of the lower layer of the conveying filter belt. The support has an inclined chip receiving trough located below the lower layer of the conveying filter belt, and the lower end of the chip receiving trough has a secondary filtration and cleaning mechanism.

[0008] Preferably, the upper width of the discharge hole is equal to the bottom width of the convex-shaped fixing groove, and the discharge holes in adjacent rows are staggered.

[0009] Preferably, the upper end of the cross head of the T-shaped support is an arc-shaped surface, and the upper end of the cross head of the T-shaped support is provided with grooves spaced apart along its length. Each groove is provided with a wear-resistant pad that matches it, and the upper end of the wear-resistant pad extends beyond the groove opening.

[0010] Preferably, the upper end of the workbench body is provided with a connecting groove corresponding to the T-shaped support, and the lower end of the vertical head of the T-shaped support is provided with a connector that mates with the connecting groove. The connector is fixed in the connecting groove by a number of bolts.

[0011] Preferably, the lower port of the hopper is close to the conveying filter belt, and the front side of the lower port of the hopper is open.

[0012] Preferably, the backwashing mechanism includes a water spray pipe and several nozzles, with two rows of nozzles at the lower end of the water spray pipe, the front row of nozzles and the rear row of nozzles being staggered.

[0013] Preferably, the secondary filtration and cleaning mechanism includes a collection box, an arc-shaped filter screen, a rotating magnetic roller, and a scraper. The upper end of the collection box is provided with an arc-shaped filter screen, the bottom of the collection box is connected to a liquid storage tank through a connecting pipe, the collection box is provided with a rotating magnetic roller located inside the arc-shaped filter screen, and the front end of the collection box is provided with an inclined scraper. The upper end of the scraper is in contact with the surface of the rotating magnetic roller.

[0014] Preferably, the front end of the collection box is provided with a connecting rod, the front end of the connecting rod is hinged to the scraper, and a support mechanism is provided between the scraper and the connecting rod.

[0015] Preferably, the support mechanism includes a support rod, a sliding sleeve, an adjusting nut, and a spring. The connecting rod is fitted with a sliding sleeve, a spring, and a threaded adjusting nut in sequence from back to front. The two ends of the support rod are respectively hinged to the sliding sleeve and the scraper. The upper end of the scraper is provided with a scraper blade by screws.

[0016] Preferably, the device also includes a workpiece fixing mechanism, which includes a slider, an internal threaded sleeve, a fixing bolt, and a clamping body. The slider is located inside the large end of the U-shaped fixing groove. The upper end of the slider is provided with an internal threaded sleeve, and a clamping body is fitted on the internal threaded sleeve. A fixing bolt is provided inside the internal threaded sleeve for threaded connection with it.

[0017] The beneficial effects of this invention are as follows: By setting a convex-shaped fixing groove between adjacent T-shaped supports and simultaneously setting continuously arranged material drop holes with a cross-section gradually decreasing from top to bottom at the bottom of the fixing groove, the invention completely eliminates the dead corner for material drop. The chips generated during processing can fall directly into the fixing groove and quickly drop through the material drop holes, eliminating the need for repeated manual cleaning, greatly reducing the difficulty of chip cleaning and improving cleaning efficiency. By setting a conveyor filter belt, the chips and cutting fluid are initially separated. With the backwashing mechanism, the filtered cutting fluid can be used to backwash the filter belt, automatically cleaning the fine chips that clog the filter screen. This eliminates the need for frequent manual cleaning, effectively ensuring filtration efficiency, extending the service life of the filter screen, and reducing maintenance costs. The invention also includes a secondary filtration and cleaning mechanism to achieve secondary fine filtration of the cutting fluid, thoroughly removing impurities from the cutting fluid, greatly improving the purity of the recovered cutting fluid, which can be directly recycled for machine tool processing, saving cutting fluid resources, and preventing impurities from wearing down machine tool equipment. Compared with the prior art, this invention improves work efficiency, reduces manual workload, and is easy to clean.

[0018] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a vertical machine tool according to the present invention; Figure 2 yes Figure 1Sectional view of AA; Figure 3 yes Figure 1 A magnified view of B in the middle.

[0020] In the diagram: 1-Workbench, 2-Chip Separation Device, 3-Workpiece Fixing Mechanism, 11-Workbench Body, 12-T-shaped Support, 13-Discharge Hole, 14-U-shaped Fixing Groove, 15-Groove, 16-Wear-resistant Pad, 17-Connecting Groove, 18-Connecting Bolt, 19-Connector, 21-Collection Hopper, 22-Chip Filtering and Conveying Mechanism, 23-Liquid Storage Tank, 220-Support, 221-Conveying Filter Belt, 222-Liquid Receiving Tank, 223-Drainage Pipe, 224-Chip Receiving Groove, 225 - Backwashing mechanism, 2251- Water spray pipe, 2252- Nozzle, 226- Secondary filtration and cleaning mechanism, 2261- Collection box, 2262- Arc-shaped filter screen, 2263- Rotating magnetic roller, 2264- Scraper, 2265- Connecting pipe, 2266- Scraper, 24- Connecting rod, 25- Support mechanism, 251- Support rod, 252- Sliding sleeve, 253- Adjusting nut, 254- Spring, 31- Sliding block, 32- Internal threaded sleeve, 33- Fixing bolt, 34- Pressing body. Detailed Implementation

[0021] See Figure 1 , Figure 2 and Figure 3This invention discloses a vertical machine tool, comprising a worktable 1 and a chip separation device 2 disposed below the worktable 1. The worktable 1 includes a worktable body 11, a plurality of T-shaped supports 12, and a plurality of discharge holes 13. The worktable body 11 is provided with elongated T-shaped supports 12 evenly spaced from front to back. Adjacent T-shaped supports 12 form a U-shaped fixing groove 14. The bottom of each U-shaped fixing groove 14 is provided with a discharge hole 13 penetrating the bottom surface of the worktable body 11. The discharge holes 13 are arranged in a row along the length of the U-shaped fixing groove 14, and the cross-section of the discharge holes 13 gradually decreases from top to bottom. The upper ends of the discharge holes 13 are connected together in sequence. The chip separation device 2 includes a collecting hopper 21, a chip filtering and conveying mechanism 22, and a storage... The liquid tank 23 contains a collection hopper 21 and a chip filtration and conveying mechanism 22 located below the collection hopper 21 and extending outward from the front end of the liquid tank 23. The chip filtration and conveying mechanism 22 includes a support 220, a conveying filter belt 221, a liquid receiving trough 222, a drain pipe 223, and a chip receiving trough 224. The support 220 has a liquid receiving trough 222 located below the upper layer of the conveying filter belt 221. One end of the drain pipe 223 is connected to the bottom of the liquid receiving trough 222, and the other end has a backwashing mechanism 225 located above the rear of the lower layer of the conveying filter belt 221. The support 220 has an inclined chip receiving trough 224 located below the lower layer of the conveying filter belt 221. The lower end of the chip receiving trough 224 has a secondary filtration and cleaning mechanism 226.

[0022] The upper width of the discharge hole 13 is equal to the bottom width of the convex-shaped fixing groove 14, and the discharge holes 13 in two adjacent rows are staggered.

[0023] The upper end of the horizontal head of the T-shaped support 12 is an arc-shaped surface. The upper end of the horizontal head of the T-shaped support 12 is provided with grooves 15 spaced apart along its length. Each groove 15 is provided with a wear-resistant pad 16 that matches it. The upper end of the wear-resistant pad 16 extends beyond the groove opening of the groove 15.

[0024] The upper end of the workbench body 11 is provided with a connecting groove 17 corresponding to the T-shaped support 12. The lower end of the vertical head of the T-shaped support 12 is provided with a connector 19 that cooperates with the connecting groove 17. The connector 19 is fixed in the connecting groove 17 by a number of connecting bolts 18.

[0025] The lower port of the collecting hopper 21 is close to the conveying filter belt 221, and the front side of the lower port of the collecting hopper 21 is open.

[0026] The backwashing mechanism 225 includes a water spray pipe 2251 and a plurality of nozzles 2252. The lower end of the water spray pipe 2251 is provided with two rows of nozzles 2252, and the front row of nozzles 2252 and the rear row of nozzles 2252 are staggered.

[0027] The secondary filtration and cleaning mechanism 226 includes a collection box 2261, an arc-shaped filter screen 2262, a rotating magnetic roller 2263, and a scraper 2264. The upper end of the collection box 2261 is provided with the arc-shaped filter screen 2262. The bottom of the collection box 2261 is connected to the liquid storage tank 23 through a connecting pipe 2265. The collection box 2261 is provided with a rotating magnetic roller 2263 located inside the arc-shaped filter screen 2262. The front end of the collection box 2261 is provided with an inclined scraper 2264. The upper end of the scraper 2264 is in contact with the surface of the rotating magnetic roller 2263.

[0028] The front end of the collection box 2261 is provided with a connecting rod 24, the front end of the connecting rod 24 is hinged to the scraper 2264, and a support mechanism 25 is provided between the scraper 2264 and the connecting rod 24.

[0029] The support mechanism 25 includes a support rod 251, a sliding sleeve 252, an adjusting nut 253, and a spring 254. The connecting rod 24 is fitted with the sliding sleeve 252, the spring 254, and the threaded adjusting nut 253 in sequence from back to front. The two ends of the support rod 251 are hinged to the sliding sleeve 252 and the scraper plate 2264, respectively. The upper end of the scraper plate 2264 is provided with a scraper blade 2266 by screws.

[0030] It also includes a workpiece fixing mechanism 3, which includes a slider 31, an internal threaded sleeve 32, a fixing bolt 33, and a clamping body 34. The slider 31 is located inside the large end of the U-shaped fixing groove 14. The upper end of the slider 31 is provided with an internal threaded sleeve 32, and the clamping body 34 is fitted on the internal threaded sleeve 32. The internal threaded sleeve 32 is provided with a fixing bolt 33 that is threadedly connected to it. Different clamping bodies 34 can be replaced as needed. In addition, it avoids the upward torque generated by the clamping body 34 being subjected to force on one side for a long time, which directly acts on the bolt and causes damage to its threads.

[0031] Working process of this invention: In the operation of this vertical machine tool, the workpiece is placed on the wear-resistant pad 16 of the T-shaped support 12 during machining, and then clamped and fixed by the workpiece fixing mechanism 3. The chips and cutting fluid generated during machining fall into the convex-shaped fixing groove 14, and then quickly fall into the collecting hopper 21 through the dropping hole 13. The mixture of chips and cutting fluid falls into the surface of the conveying filter belt 221 through the collecting hopper 21, and is conveyed by the conveying filter belt to achieve preliminary solid-liquid separation and conveying. The conveying filter belt is set on the driving roller and driven roller on the bracket 220. The cutting fluid penetrates the filter screen and falls into the liquid receiving tank 222, and then flows through the drain pipe. 223 is conveyed to the backwashing mechanism 225, where the lower layer of the filter belt is backwashed through staggered nozzles 2252 to clean the filter screen blockage and impurities; the washed impurities and chips fall into the inclined chip collection groove 224, and after collection, flow into the secondary filtration and cleaning mechanism 226; the mixture is filtered a second time through the arc-shaped filter screen 2262, and the fine metal chips are attracted by the rotation of the electrically driven magnetic roller 2263. The clean cutting fluid flows back to the storage tank 23 through the connecting pipe 2265. The chips adsorbed on the surface of the magnetic roller are automatically scraped off and collected by the scraper 2266 and scraper plate 2264 during the rotation process, completing the entire separation, filtration and cleaning operation.

[0032] The workbench of this invention adopts a T-shaped support combined with a convex-shaped fixing groove structure, and is equipped with a connecting material discharge hole that is wider at the top and narrower at the bottom. The material discharge has no dead corners and does not accumulate. It can quickly guide the chips and cutting fluid generated during processing into the separation device below. This invention features a multi-stage filtration and separation structure. It achieves initial separation of chips and cutting fluid by conveying a filter belt, and is equipped with an interlaced dual-nozzle backwashing mechanism to achieve automatic cleaning of the filter belt, preventing filter clogging and eliminating the need for frequent downtime maintenance. This invention adds a secondary filtration and cleaning mechanism, which uses an arc-shaped filter screen in conjunction with a rotating magnetic roller to adsorb and collect fine metal chips, thereby achieving secondary purification of the cutting fluid. This significantly improves the cutting fluid recovery rate and cleanliness, prevents fine chips from circulating and wearing down the equipment and workpiece, and ensures processing quality.

[0033] The T-shaped support of the workbench is detachable and equipped with wear-resistant pads, which greatly improves the wear resistance and service life of the workbench and makes maintenance and replacement convenient; the adjustable support scraping structure can ensure a continuous and stable scraping and cleaning effect and has strong structural stability. Equipped with a flexibly adjustable workpiece fixing mechanism, it can accommodate workpieces of different sizes, making the equipment widely versatile and compact in overall structure.

[0034] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A vertical machine tool, characterized in that: The device includes a workbench (1) and a chip separation device (2) located below the workbench (1). The workbench (1) includes a workbench body (11), several T-shaped supports (12), and several discharge holes (13). The workbench body (11) is provided with long strip-shaped T-shaped supports (12) arranged evenly from front to back. Adjacent T-shaped supports (12) form a convex-shaped fixing groove (14). The bottom of the convex-shaped fixing groove (14) is provided with discharge holes (13) penetrating the bottom surface of the workbench body (11). The discharge holes (13) are arranged in a row along the length of the convex-shaped fixing groove (14). The cross-section of the discharge holes (13) gradually decreases from top to bottom. The upper ends of the discharge holes (13) are connected together in sequence. The chip separation device (2) includes a collection hopper (21), a chip filtering and conveying mechanism (22), and a liquid storage tank (23). The storage tank (23) is provided with a collection hopper (21) and a chip filtration and conveying mechanism (22) located below the collection hopper (21) and extending out of the storage tank (23). The chip filtration and conveying mechanism (22) includes a support (220), a conveying filter belt (221), a liquid receiving trough (222), a drain pipe (223), and a chip receiving trough (224). The support (220) is provided with a liquid receiving trough (222) located below the upper belt of the conveying filter belt (221). One end of the drain pipe (223) is connected to the bottom of the liquid receiving trough (222), and the other end is provided with a backwashing mechanism (225) located above the rear of the lower belt of the conveying filter belt (221). The support (220) is inclined to provide a chip receiving trough (224) located below the lower belt of the conveying filter belt (221). The lower end of the chip receiving trough (224) is provided with a secondary filtration and cleaning mechanism (226).

2. A vertical machine tool as described in claim 1, characterized in that: The upper width of the discharge hole (13) is equal to the bottom width of the convex-shaped fixing groove (14), and the discharge holes (13) of adjacent rows are staggered.

3. A vertical machine tool as described in claim 1, characterized in that: The upper end of the cross head of the T-shaped support (12) is an arc-shaped surface. The upper end of the cross head of the T-shaped support (12) is provided with grooves (15) spaced apart along its length. Each groove (15) is provided with a wear-resistant pad (16) that matches it. The upper end of the wear-resistant pad (16) extends beyond the groove (15).

4. A vertical machine tool as described in claim 1, characterized in that: The upper end of the workbench body (11) is provided with a connecting groove (17) corresponding to the T-shaped support (12). The lower end of the vertical head of the T-shaped support (12) is provided with a connector (19) that cooperates with the connecting groove (17). The connector (19) is fixed in the connecting groove (17) by several connecting bolts (18).

5. A vertical machine tool as described in claim 1, characterized in that: The lower port of the hopper (21) is close to the conveying filter belt (221), and the front side of the lower port of the hopper (21) is open.

6. A vertical machine tool as described in claim 1, characterized in that: The backwashing mechanism (225) includes a water spray pipe (2251) and a number of nozzles (2252). The lower end of the water spray pipe (2251) is provided with two rows of nozzles (2252), and the front row of nozzles (2252) and the rear row of nozzles (2252) are staggered.

7. A vertical machine tool as described in claim 1, characterized in that: The secondary filtration and cleaning mechanism (226) includes a collection box (2261), an arc-shaped filter screen (2262), a rotating magnetic roller (2263), and a scraper (2264). The upper end of the collection box (2261) is provided with an arc-shaped filter screen (2262). The bottom of the collection box (2261) is connected to the liquid storage tank (23) through a connecting pipe (2265). The collection box (2261) is provided with a rotating magnetic roller (2263) located inside the arc-shaped filter screen (2262). The front end of the collection box (2261) is provided with an inclined scraper (2264). The upper end of the scraper (2264) is in contact with the surface of the rotating magnetic roller (2263).

8. A vertical machine tool as described in claim 7, characterized in that: The front end of the collection box (2261) is provided with a connecting rod (24), the front end of the connecting rod (24) is hinged to the scraper (2264), and a support mechanism (25) is provided between the scraper (2264) and the connecting rod (24).

9. A vertical machine tool as described in claim 8, characterized in that: The support mechanism (25) includes a support rod (251), a sliding sleeve (252), an adjusting nut (253), and a spring (254). The connecting rod (24) is fitted with the sliding sleeve (252), the spring (254), and the threaded adjusting nut (253) in sequence from back to front. The two ends of the support rod (251) are hinged to the sliding sleeve (252) and the scraper plate (2264) respectively. The upper end of the scraper plate (2264) is provided with a scraper blade (2266) by screws.

10. A vertical machine tool as described in any one of claims 1 to 9, characterized in that: It also includes a workpiece fixing mechanism (3), which includes a slider (31), an internal threaded sleeve (32), a fixing bolt (33) and a clamping body (34). The slider (31) is located inside the large end of the U-shaped fixing groove (14). The upper end of the slider (31) is provided with an internal threaded sleeve (32). The clamping body (34) is fitted on the internal threaded sleeve (32). The fixing bolt (33) is threadedly connected to the internal threaded sleeve (32).

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