A machining center with iron chip cleaning function

Abstract

The present invention relates to the technical field of machining centers, and discloses a machining center with an iron chip cleaning function, including a bed and a workbench, the workbench moves back and forth along the length direction of the bed, and vertically arranged enclosures are arranged around the bed. A cleaning assembly is arranged on the workbench, and transfer and collection components are arranged at both ends of the bed corresponding to the movement of the workbench. The cleaning assembly includes a first cleaning component and a second cleaning component; the first cleaning component includes a scraping member, a first cleaning member located at both ends of the scraping member, and a switching component; the second cleaning component includes a one-way cleaning component; the transfer and collection component includes a chip conveyor belt, collection ports located at the four corners of the bed, and a chip-liquid separation mechanism arranged at the lower end of the bed and connected to the collection port. The machining center can clean, collect and separate some iron chips and liquid in real time while processing products, and perform sufficient iron chip cleaning, collection and chip-liquid separation after the products are unloaded.

Description

Technical Field

[0001] The present invention relates to the technical field of machining centers, and in particular to a machining center with an iron chip cleaning function. Background Art

[0002] A machining center, also known as a CNC machine tool, is an automated machine tool equipped with a program control system that can logically process programs specified by control codes or other symbolic instructions, decode them through a computer, and enable the machine tool to perform the specified actions, processing the blank into semi-finished or finished parts through tool cutting.

[0003] The machining center includes a bed and a workbench arranged on the bed. The workbench is divided into a movable workbench and a fixed workbench. The Chinese patent application text with application number 202210487306.9 discloses a double-column movable workbench gantry machining center, including a bed, two sets of beam assemblies with tools arranged on the bed, and the tools can move in a cross direction on the beam assembly. A workbench is arranged on the bed, which is connected to the bed of the machine tool through a horizontal moving component and can move back and forth between the two beam assemblies.

[0004] When the tool is milling the product, iron chips will splash randomly and fall onto the surface of the workbench, the installation groove on the surface of the workbench, and the area of ​​the bed except the workbench. The accumulation of iron chips on the surface of the workbench will affect the installation of the mold on the workbench, and the accumulation of iron chips on the bed will affect the smoothness of the workbench operation.

[0005] The existing method of cleaning iron chips generally adopts manual cleaning, which has the following problems: 1. Cleaning can only be performed when the equipment is shut down, and it cannot be cleaned in real time. Iron chips are easily accumulated excessively and cause adverse effects; 2. When cleaning, iron chips are easy to touch the operator's skin and cause skin damage; 3. After shutdown, the iron chips accumulated on the lower surface of the workbench are difficult to clean thoroughly. Therefore, it is very necessary to set up a machining center that can automatically clean and collect iron chips on the workbench and bed without stopping the machine. Summary of the Invention

[0006] The present invention aims to solve the problem that the existing machining center with a movable workbench does not have the function of automatically cleaning and collecting iron chips when the machine is turned on. It provides a machining center with an iron chip cleaning function, which can automatically clean and collect iron chips without shutting down the machine.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0008] A machining center with a chip cleaning function includes a bed and a workbench. The workbench moves back and forth along the length of the bed. The bed is vertically surrounded by enclosures. A cleaning assembly is provided on the workbench. Transfer and collection components are provided at both ends of the bed corresponding to the movement of the workbench. The cleaning assembly includes a first cleaning component and a second cleaning component.

[0009] The first cleaning assembly includes a scraping member, first cleaning members located at both ends of the scraping member, and a switching assembly; the scraping member is arranged on the upper surface of the workbench, and is used to clean the iron filings on the upper surface of the workbench and in the mounting groove on the upper surface; the first cleaning member is used to clean the area of ​​the bed on both sides of the workbench; the switching assembly is arranged between the enclosure, the scraping member, and the workbench, and is used to realize the switching of the connection between the scraping member and the enclosure or the connection between the scraping member and the workbench;

[0010] The second cleaning assembly includes a one-way cleaning assembly, which is provided with two groups and is respectively located at both ends of the lower end of the workbench along its movement direction. The one-way cleaning assembly includes a second cleaning member pivotally connected to the lower surface of the workbench and a baffle provided on a side opposite to the two groups of second cleaning members;

[0011] The transfer and collection component includes a chip conveyor belt whose conveying direction is perpendicular to the cleaning direction of the first cleaning part and the second cleaning part and can receive the iron chips cleaned by the first cleaning part and the second cleaning part, a collection port for collecting coolant and iron chips arranged below the two ends of the chip conveyor belt at the four corners of the bed in the conveying direction, and a chip-liquid separation mechanism arranged at the lower end of the bed and connected to the collection port.

[0012] By adopting the above scheme, the cleaning of both sides of the bed and the cleaning of the upper end surface of the workbench are respectively achieved by using the first cleaning member and the scraping member in the first cleaning component. The specific cleaning process needs to be combined with the movement of the workbench itself and the switching of the switching component. The scraping member and the first cleaning member are fixedly connected, and there are two states of relative movement and relative stillness between the two and the workbench. When the scraping member and the first cleaning member are stationary relative to the bed, the scraping member moves relative to the workbench and is in a state of scraping the upper surface of the workbench; when the scraping member and the second cleaning member move relative to the bed, the scraping member is stationary relative to the workbench and the first cleaning member is in a state of cleaning both sides of the bed, and the first cleaning member is switched at the limit positions at both ends of the workbench under the action of the switching component, so that both sides of the bed can be cleaned in place; in actual work, when a mold is installed on the upper surface of the workbench, the scraping member and the first cleaning member are in relative working The table is in a stationary state; when the mold is removed from the upper surface of the workbench, the scraping member and the first cleaning member are switched to a stationary state relative to the bed; the second cleaning component uses two sets of one-way cleaning components, and as the workbench moves back and forth, the areas involved in the movement of the workbench are effectively cleaned. The principle is that the cleaning directions of the two sets of one-way cleaning components are set in opposite directions. When one side is in a cleaning state, the other side tends to swing without force, which can prevent iron chips from entering under the workbench and between the two sets of second cleaning members and being trapped under the workbench and unable to be completely cleaned; combined with the first cleaning component and the second cleaning component, the iron chips on the bed and the upper surface of the workbench can be automatically cleaned onto the chip conveyor belt, and automatically dumped into the collection port and into the chip-liquid separation mechanism. The power source of the cleaning assembly is the movement of the workbench, and it cleans in real time as the workbench moves to ensure the cleanliness of the bed.

[0013] Preferably, the switching assembly includes recessed accommodating grooves at both ends of the scraping member, mounting blocks fixedly arranged in the middle of the enclosures on both sides of the bed, and limiting grooves arranged on the side of the mounting block close to the scraping member. A limiting block is elastically and retractably arranged in the accommodating groove, and an insert block extends vertically downward at one end of the limiting block away from the limiting groove. There are recessed limiting grooves at both ends of the side walls of the workbench, and a first electromagnet is fixed to the bottom of the accommodating groove. An elastic member with both ends fixed to the first electromagnet and the limiting block is arranged between the first electromagnet and the limiting block. When the first electromagnet is energized, the limiting block partially extends out to engage with the limiting groove and the insert block is disengaged from the limiting groove; when the first electromagnet loses power, the limiting block retracts to disengage from the limiting groove and the insert block is inserted into any limiting groove.

[0014] By adopting the above scheme, the power-on or power-off of the first electromagnet is utilized to realize the synchronous extension and retraction of the limit block and the plug block. When the limit block is partially extended, the plug block is disengaged from the limit groove, thereby releasing the limit between the first cleaning component and the workbench, and the limit block is partially engaged with the limit groove on the mounting block, realizing the limit of the first cleaning component and the enclosure above the bed, that is, the limit relative to the bed.

[0015] Preferably, blocks for limiting the maximum stroke of the scraping member are provided at both ends of the side walls of the workbench, and the limit blocks are arranged on both sides of the movement direction of the workbench to drive the limit blocks out of or into the guide slopes of the limit groove when the relative force between the limit block and the inner wall of the limit groove or between the limit block and the outer wall of the mounting block exceeds a preset value.

[0016] By adopting the above scheme, on the one hand, the setting of the stop block can limit the maximum stroke of the relative movement of the scraping member on the workbench, and the limited scraping member falls off the workbench; on the other hand, it can also make the scraping member scrape the upper surface of the workbench while the first cleaning member cleans both sides of the bed within a certain area while reducing the probability of the first electromagnet being energized. The principle is as follows: the guide slopes on both sides of the limit block make it in a plug-in limit state with the limit groove within a certain relative force; and after exceeding the relative force, it automatically disengages from the limit groove. The relative force depends on the elastic force of the elastic member, and a suitable elastic member can be selected according to demand. When the limit block is plugged into the limit groove, as the workbench moves, the workbench moves relative to the scraping member. When the scraping member is located at either end of the workbench, it can sweep the iron chips it scrapes from the workbench to the bed, and is swept onto the chip conveyor belt by the one-way cleaning component. When the scraping member moves to one end of the workbench, as the workbench moves Continuing the movement, the scraping member can switch from relative locking with the bed to relative disengagement, but the scraping member still abuts against the block and is in a relatively stationary state relative to the workbench (while the plug block and the limit groove are in a disengaged state). In this state, the first cleaning member is in a state of cleaning both sides of the bed; as the workbench moves in the opposite direction, the scraping member moves slowly relative to the workbench, which depends on the friction between the first cleaning member and the bed, until the limit block touches the outer wall of the mounting block, the scraping member and the workbench move relative to each other at the movement speed of the workbench. The first cleaning member is first stationary relative to the bed, and after the limit block is re-engaged with the limit groove and disengaged, it performs a cleaning movement relative to the bed. In the above process, the iron chips on both sides of the bed cannot enter the chip conveyor belt, and will be gathered at the two ends on both sides of the bed. Only after the subsequent first electromagnet is energized and the scraping member is limited at the end of the workbench, can the workbench be moved to the maximum stroke, and the first cleaning member can sweep the gathered iron chips onto the chip conveyor belt.

[0017] Preferably, the scraping member includes a flexible scraping block embedded in each mounting groove and a flexible scraping strip adhered to the upper surface of the workbench and fixed to all the flexible scraping blocks. The flexible scraping strip and the flexible scraping block are arranged on both sides of the movement direction of the workbench to form inclined surfaces for shoveling chips. A concave cavity is recessed at the lower end of the flexible scraping strip and / or the flexible scraping block, and a buffer rolling component is vertically elastically lifted and lowered in the cavity for improving the movement flow of the scraping member.

[0018] By adopting the above scheme, in the scraping member, the flexible scraping block is used to scrape the iron filings in the installation groove, and the flexible scraping strip is used to scrape the iron filings on the upper surface of the workbench. The buffer rolling assembly can reduce the relative friction between the scraping member and the workbench without affecting the scraping performance of the scraping member, making scraping smoother and more labor-saving.

[0019] Preferably, the buffer rolling assembly includes a buffer block vertically inserted into the cavity, a first rolling body arranged at the lower end of the buffer block, and a buffer spring connected between the cavity and the buffer block for driving the first rolling body to contact the upper surface of the workbench and / or the bottom of the mounting groove.

[0020] By adopting the above solution, the first rolling body can reduce the relative friction between the scraping member and the workbench. If there are residual iron filings that have not been scraped off, the buffer block can lead the first rolling body over the iron filings, reducing the probability of hard squeezing between the first rolling body and the iron filings, and reducing the wear of the first rolling body.

[0021] Preferably, the movement of the chip conveyor belt and the movement of the workbench are synchronously controlled by a drive motor, and a drive guide assembly is arranged between the workbench and the bed. The drive guide assembly is a third screw slide assembly. The motor shaft of the drive motor and one end of the screw of the third screw slide assembly are synchronously rotated through a first synchronization structure. The chip conveyor belt is tensioned on two transmission rollers, and the transmission rollers are rotatably arranged on the bed. The rotating shaft of one transmission roller and the motor shaft of the drive motor are synchronously rotated through a second synchronization structure consistent with the first synchronization structure.

[0022] Using the above scheme, the main function of the driving motor is to drive the workbench to move back and forth, and then carry the product to the location of the tool. Under the action of the first synchronous structure and the second synchronous structure, the driving motor can simultaneously drive the chip conveyor belt to move. Therefore, under the drive of the driving motor, the workbench can move back and forth, the cleaning assembly is in a real-time cleaning process, and the chip conveyor belt is in real-time rotation, which is used to receive the iron chips cleaned by the cleaning assembly and pass the iron chips to the collection port.

[0023] Preferably, the first synchronization structure includes a first gear coaxially fixed to the motor shaft, a second gear coaxially fixed to one end of the lead screw, and a first synchronization chain synchronously meshed with the first gear and the second gear.

[0024] Preferably, the bed is provided with mounting grooves at both ends of the workbench's moving direction, and are recessed in a direction perpendicular to the workbench's moving direction. The collecting ports are located at both ends of the bottom of the mounting grooves. The chip conveyor belt is installed in the mounting grooves. Anti-slip protrusions are provided on the outer ring wall of the chip conveyor belt at circumferential intervals. A placement groove for accommodating iron chips is formed between the side walls of the mounting groove and the adjacent anti-slip protrusions.

[0025] With the above solution, the chip conveyor belt is set in the groove, forming a height difference with the bed surface, which is convenient for receiving iron chips. The anti-slip bumps can prevent excessive iron chips from falling, making the transfer of iron chips smoother.

[0026] Preferably, the chip-liquid separation mechanism includes a coolant storage box arranged in the middle of the lower end surface of the bed and a separation box located at both ends of the lower end surface of the bed. The separation box includes a box body and a chip collection box that is pulled out from the sealed side and arranged in the upper middle of the box body. The chip collection box is a "V"-shaped box body with both ends inclined downward toward the middle. The two ends of the chip collection box are located directly below the collecting port. The interior of the separation box is divided into an auxiliary chamber connected to the collecting port and a liquid collection chamber located between the two auxiliary chambers below the chip collection box. An auxiliary collection box that is plugged into the auxiliary chamber is pulled out from the sealed side of the separation box. The bottom of the chip collection box is provided with filter holes corresponding to the liquid collection chamber for intercepting iron chips while allowing coolant to seep down. A drain pipe is connected between the bottom of the liquid collection chamber and the coolant storage box.

[0027] By adopting the above scheme, the chip box can be sealed and assembled with the box body or detached from the box body by pulling and pulling. After the chip box is full of chips, the operator can dump the iron chips by pulling out the chip box. The filter holes at the bottom of the chip box can filter the coolant and allow the coolant to enter the coolant storage tank through the drain pipe. The function of the auxiliary collection box is that when the chip box is taken out, if a small amount of iron chips and coolant enter the collection port, they can be collected by the auxiliary collection box.

[0028] Preferably, an electromagnetic adsorption module capable of adsorbing or desorbing iron chips is provided in the middle of the chip collecting box.

[0029] By adopting the above scheme, the electromagnetic adsorption module can adsorb or desorb iron chips. When the chip box is installed in the box, the electromagnetic adsorption module is energized, which can adsorb the iron chips on the electromagnetic adsorption module to prevent the iron chips from docking at both ends of the chip box; when the chip box is removed, the electromagnetic adsorption module is de-energized, and the iron chips can be dumped smoothly.

[0030] The present invention has a remarkable technical effect due to the adoption of the above technical scheme: a cleaning assembly and a transfer and collection assembly are provided, and the cleaning assembly consists of a first cleaning assembly and a second cleaning assembly, and the cleaning of the two sides of the bed and the cleaning of the upper end surface of the workbench are respectively achieved by using the first cleaning member and the scraping member in the first cleaning assembly. The specific cleaning process needs to be combined with the movement of the workbench itself and the switching of the switching assembly. The scraping member and the first cleaning member are fixedly connected and there are two states of relative movement and relative static between the two and the workbench. When the scraping member and the first cleaning member are stationary relative to the bed, the scraping member moves relative to the workbench and is in a state of scraping the upper surface of the workbench; when the scraping member and the second cleaning member move relative to the bed, the scraping member is stationary relative to the workbench and the first cleaning member is in a state of cleaning both sides of the bed, and the first cleaning member is switched at the limit positions at both ends of the workbench under the action of the switching assembly, so that both sides of the bed can be cleaned in place; in actual work, when a mold is installed on the upper surface of the workbench, the scraping member and the first cleaning member are fixedly connected and are in a state of relative movement with the workbench The cleaning part is in a stationary state relative to the workbench; when the mold is removed from the upper surface of the workbench, the scraping part and the first cleaning part switch to a stationary state relative to the bed; the second cleaning component uses two sets of one-way cleaning components, and as the workbench moves back and forth, the areas involved in the movement of the workbench are effectively cleaned. The principle is that the cleaning directions of the two sets of one-way cleaning components are set in opposite directions. When one side is in a cleaning state, the other side tends to swing without force, which can prevent iron chips from entering under the workbench and between the two sets of second cleaning parts, and being trapped under the workbench and unable to be completely cleaned; combined with the first cleaning component and the second cleaning component, the iron chips on the upper surface of the bed and the workbench can be automatically cleaned onto the chip conveyor belt, and automatically dumped to the collection port and into the chip-liquid separation mechanism with the help of the chip conveyor belt. The cleaning movement of the cleaning assembly, the movement of the workbench, and the movement of the chip conveyor belt are powered by the same drive motor, which can clean, collect and separate iron chips and liquid in real time to ensure the cleanliness of the bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an axonometric diagram of a machining center with a chip cleaning function according to the present embodiment;

[0032] Figure 2 It is an axonometric view of the bed and partial enclosure of the machining center of this embodiment;

[0033] Figure 3 1 is a top view of the bed and partial enclosure of the machining center of this embodiment;

[0034] Figure 4 yes Figure 3 AA cross-sectional view;

[0035] Figure 5 yes Figure 4 Cross-sectional view of BB;

[0036] Figure 6 yes Figure 5 Cross-sectional view of CC;

[0037] Figure 7 This is an axonometric view of the workbench, cleaning assembly, and chip conveyor belt of this embodiment when in cooperation;

[0038] Figure 8 This is a front view of the working table, cleaning assembly and chip conveyor belt of this embodiment when they are in cooperation;

[0039] Figure 9 It is an axonometric view of the first cleaning assembly of this embodiment.

[0040] The parts designated by the numbers in the above drawings are as follows: 1. bed; 2. enclosure; 3. workbench; 4. mounting groove; 5. engraving and milling tool; 6. first screw slide assembly; 7. second screw slide assembly; 8. scraper; 801. flexible scraper strip; 8011. accommodating groove; 802. flexible scraper block; 803. clearance groove; 804. concave cavity; 805. buffer block; 806. buffer spring; 807. first rolling element; 9. mounting block; 901. limiting groove; 10. chip box; 1001. filter hole; 11. drainage channel; 12. mounting groove; 13. chip conveyor belt; 14. anti-slip protrusion; 15. collection port; 16. chip anti-mounting seat; 161. movable groove; 17. guide rail; 18. Stop block; 19. Limiting groove; 20. Pull ring; 21. Mounting cavity; 22. Driving motor; 23. First electromagnet; 24. Elastic member; 25. Limiting block; 251. Guide slope; 252. Insert block; 26. First cleaning member; 261. Table cleaning part; 262. Channel bottom cleaning part; 27. Second cleaning member; 28. Baffle; 29. ​​Screw rod; 30. Matching block; 31. Coolant storage tank; 32. Drain pipe; 33. First gear; 34. Second gear; 35. First synchronous chain; 36. Third gear; 37. Fourth gear; 38. Transmission roller; 39. Second synchronous chain; 40. Second rolling element; 41. Electromagnetic adsorption module; 42. Auxiliary collecting box; 43. Liquid collecting cavity; 44. Auxiliary cavity. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0042] A machining center with chip cleaning function, refer to Figure 1As shown, it includes a bed 1, a workbench 3, a first screw slide assembly 6, a second screw slide assembly 7, a third screw slide assembly and a milling tool 5. The first screw slide assembly 6 and the second screw slide assembly 7 have the same structure, both including a base, a screw rotatably arranged in the base, a slide guided and moved on the base and screwed to the screw rod 29, and a motor located in the base and driving the screw rod 29 to rotate. The first screw slide assembly 6, the second screw slide assembly 7 and the milling tool have not been improved and are all existing technologies. The specific structure will not be repeated.

[0043] There are enclosures 2 set around the bed 1, and the base of the second screw slide assembly 7 is fixed in the middle of the enclosures 2 on both sides. The engraving and milling tool 5 is fixed on the slide of the first screw slide assembly 6, and the base of the first screw slide assembly 6 is fixed on the slide of the second screw slide assembly 7.

[0044] Combine Figures 2 to 9 As shown, both ends of the bed 1 are recessed with mounting grooves 12, and both sides of the bed 1 are recessed with drainage channels 11. The design of the mounting grooves 12 and the drainage channels 11 makes the main body of the bed 1 bulge in a step-like manner. The workbench 3 is arranged on the upper surface of the raised bed 1 and reciprocates along the length direction of the bed 1 through the third screw slide assembly. The third screw slide assembly specifically includes two sets of guide rails 17 arranged in parallel along the length direction of the bed 1 and a screw rod 29 rotatably arranged between the two sets of guide rails 17. A drainage groove is provided under the guide rail 17 to facilitate the passage of coolant into the drainage channel. The slide of the third screw slide assembly is the workbench 3. The lower surface of the bed 1 is provided with a slider embedded in the guide rail 17 and a matching block 30 screwed with the screw 29. A mounting cavity 21 is formed inside the bed 1. A drive motor 22 for driving the screw 29 to rotate is provided in the mounting cavity 21. The motor shaft of the drive motor 22 is parallel to the screw 29 and is located directly below the screw 29. The drive motor 22 and the screw 29 are synchronized by a first synchronization structure. The first synchronization structure includes a first gear 33 coaxially fixed to the motor shaft, a second gear 34 coaxially fixed to the screw 29, and a first synchronization chain 35 that meshes with the first gear 33 and the second gear 34 at the same time.

[0045] A cleaning assembly is provided on the workbench 3, and the cleaning assembly includes a first cleaning component for cleaning the drainage channel 11 and the iron chips on the upper surface of the workbench 3, and a second cleaning component for cleaning the iron chips on the surface of the bed 1 between the two sets of guide rails 17 and within the moving area of ​​the workbench 3. A chip conveyor belt 13 for receiving and transferring the iron chips cleaned by the first cleaning component and the second cleaning component is provided in the installation groove 12, and anti-slip protrusions 14 are provided on the outer ring wall of the chip conveyor belt 13 at intervals around the circumference thereof. A placement groove for accommodating iron chips is formed between the side walls of the installation groove 12 and the adjacent anti-slip protrusions 14, and both ends of the installation groove 12 are connected to both ends of the drainage channel 11 and a collecting port 15 is provided at the confluence of the two, and a chip-liquid separation mechanism connected to the collecting port 15 is provided under the bed 1.

[0046] The first cleaning assembly includes a scraping member 8, first cleaning members 26 located at both ends of the scraping member 8, and a switching assembly;

[0047] The scraper 8 is provided on the upper surface of the workbench 3 and is used to clean the iron filings on the upper surface of the workbench 3 and the mounting groove 4 on the upper surface. The structure of the scraper 8 is shown in FIG. Figure 4 and Figure 9 As shown, it includes a flexible scraping block 802 embedded in each mounting groove 4 and a flexible scraping strip 801 attached to the upper surface of the workbench 3 and fixed to all the flexible scraping blocks 802. The flexible scraping blocks 802 and the flexible scraping strip 801 both include a hard frame and a rubber layer coated on the outside of the hard frame. The flexible scraping strip 801 and the flexible scraping block 802 are arranged on both sides of the movement direction of the workbench 3 to form an inclined surface for shoveling chips. The cross section of the flexible scraping strip 801 is a triangle with the tip facing upward, and the middle part of the lower end of the flexible scraping block 802 is concave. There is a recessed groove 803, and a cavity 804 is recessed upward at the bottom of the recessed groove 803. A buffer rolling assembly for improving the moving process of the scraping member 8 is vertically elastically lifted in the cavity 804. The buffer rolling assembly includes a buffer block 805 vertically inserted into the cavity 804, a first rolling body 807 arranged at the lower end of the buffer block 805, and a buffer spring 806 connected between the cavity 804 and the buffer block 805 for driving the first rolling body 807 to contact the bottom of the mounting groove 4. The first rolling body 807 is a steel ball.

[0048] The first cleaning member 26 is used to clean the drainage channel 11 and the area on the side of the bed 1 opposite to the two sets of guide rails 17. For specific structure, refer to Figure 4 and Figure 9 As shown, it includes a connecting rod fixed at both ends of the lower end surface of the flexible scraper 801 and a cleaning portion provided on the connecting rod, the cleaning portion including a table cleaning portion 261 abutting against the upper surface of the bed 1 and located on the side area of ​​the guide rail 17 close to the enclosure 2, and a channel bottom cleaning portion 262 abutting against the bottom of the drainage channel 11;

[0049] The switching component is arranged between the enclosure 2, the scraping member 8 and the workbench 3, and is used to realize the switching of the connection between the scraping member 8 and the enclosure 2 or the connection between the scraping member 8 and the workbench 3. For the specific structure, refer to Figure 4 、 Figure 7 as well as Figure 9 As shown, it includes recessed accommodating grooves 8011 at both ends of the flexible scraper 801, mounting blocks 9 fixedly arranged in the middle of the enclosure 2 on both sides of the bed 1, and limiting grooves 901 arranged on the side of the mounting block 9 close to the scraping member 8. A limiting block 25 is elastically and retractably arranged in the accommodating groove 8011, and an insert block 252 extends vertically downward at one end of the limiting block 25 away from the limiting groove 901. There are recessed limiting grooves 19 at both ends of the side walls of the workbench 3. A first electromagnet 23 is fixed to the bottom of the accommodating groove 8011, and an elastic member 24 with both ends fixed to the first electromagnet 23 and the limiting block 25 is arranged between the first electromagnet 23 and the limiting block 25. When the first electromagnet 23 is energized, the limiting block 25 partially extends out to plug into the limiting groove 901 and the insert block 252 disengages from the limiting groove 19; when the first electromagnet 23 loses power, the limiting block 25 retracts and disengages from the limiting groove 901 and the insert block 252 is inserted into any limiting groove 19.

[0050] Stop blocks 18 for limiting the maximum stroke of the scraping member 8 are provided at both ends of the side walls of the workbench 3. The limit blocks are arranged on both sides of the movement direction of the workbench 3 so as to drive the limit block 25 out of or into the guide slope 251 of the limit groove 901 when the relative force between the limit block 25 and the inner wall of the limit groove 901 or between the limit block 25 and the outer wall of the mounting block 9 exceeds a preset value.

[0051] The second cleaning assembly includes a one-way cleaning assembly, which is provided with two groups and is respectively located at both ends of the lower end of the workbench 3 along its movement direction. The one-way cleaning assembly includes a second cleaning member 27 pivotally connected to the lower surface of the workbench 3 and a baffle 28 arranged on the side opposite to the two groups of second cleaning members 27.

[0052] In order to facilitate the removal of iron chips on the guide rail 17, cleaning layers are provided at both ends of the slider, which are in contact with the two sides and the upper end surface of the guide rail 17. The cleaning layer is a sponge layer or a rubber layer. The screw rod 29 is arranged in an anti-chip mounting seat 16. The upper end of the anti-chip mounting seat 16 is designed to be a structure with the tip of the middle part facing upward and the two sides being downward inclined slopes. This structural design is to facilitate the natural sliding of iron chips. Movable grooves 161 are provided on both sides of the anti-chip mounting seat 16. The matching block 30 passes through the movable groove 161 and is screwed to the screw rod 29. The lower end surface of the movable groove 161 is preferably set to a downward inclined slope. The slope has the function of guiding iron chips to fall into the upper surface of the bed 1.

[0053] The movement of the chip conveyor belt 13 is controlled by the drive motor 22. The chip conveyor belt 13 is tensioned on two transmission rollers 38. The transmission rollers 38 are rotatably arranged in the mounting groove 12. The rotating shaft of one transmission roller 38 and the motor shaft of the drive motor 22 are synchronized by a second synchronization structure consistent with the first synchronization structure. Figures 6 to 8 As shown, the second synchronization structure includes a fourth gear 37 coaxially fixed to a transmission roller 38 , a third gear 36 coaxially fixed to the motor shaft, and a second synchronization chain 39 synchronously meshed with the third gear 36 and the fourth gear 37 .

[0054] The chip-liquid separation mechanism includes a coolant storage tank 31 arranged in the middle of the lower end surface of the bed 1 and two separation boxes located at both ends of the lower end surface of the bed 1.

[0055] A pump is provided in the coolant storage tank 31, and a spray pipe is connected between the coolant storage tank 31 and the engraving and milling tool 5. The spray pipe is connected to the pump, and the pump sprays the coolant out through the spray pipe. During the engraving and milling process of the engraving and milling tool 5, it can be cooled in time (pumping coolant is an existing technology, and the process is briefly explained here without involving improvements).

[0056] The separation box includes a box body and a dust collecting box 10 which is pulled out from the sealed side and arranged in the upper part of the box body. Figure 1 、 Figure 5 as well as Figure 6 As shown, the chip box 10 is a "V"-shaped box body with both ends tilted downward toward the middle. The two ends of the chip box 10 are located just below the collection port. A pull ring 20 for pulling it is provided on the outer wall of the chip box 10. The interior of the separation box is divided into an auxiliary chamber 44 connected to the collection port and a liquid receiving chamber 43 located between the two auxiliary chambers 44 by a partition below the chip box 10. A second rolling body 40 is embedded in the bottom of the chip box 10 and cooperates with the upper end of the partition. The second rolling body 40 is a roller or a steel ball. The upper end surface of the partition can be provided with a The second rolling body 40 cooperates with the guide groove, and an auxiliary collecting box 42 is pulled out on the sealing side of the separation box and is sealed and plugged into the auxiliary cavity 44. The bottom of the chip collecting box 10 is evenly distributed with filter holes 1001 corresponding to the liquid collecting cavity 43, which can intercept iron chips and allow coolant to seep in at the same time. An electromagnetic adsorption module 41 that can adsorb or desorb iron chips is provided in the middle of the chip collecting box 10. The electromagnetic adsorption module 41 is a second electromagnet with a waterproof layer on the outside, and a drain pipe 32 is connected between the bottom of the liquid collecting cavity 43 and the coolant storage tank 31.

[0057] When a mold is installed on the workbench 3, the working state is as follows:

[0058] The first electromagnet 23 is in an energized state, the scraping member 8 is located at one end of the workbench 3 and the insert block 252 is in a state of being plugged into the limiting groove 19. At this time, with the operation of the drive motor 22, the workbench 3 is in a reciprocating movement state. The main function of this state is to realize the movement of the workbench 3 carrying the mold and the workpiece on the mold. The auxiliary function is to use the movement of the workbench 3 to perform local cleaning of the bed 1 and the drainage channel 11. When the workbench 3 moves to one end of the bed 1, it can clean some of the cleaned iron chips onto the chip conveyor belt 13 and transfer them to the collection port 15 via the chip conveyor belt 13. Therefore, this state combines the production of parts and the partial cleaning, conveying and collection functions of the iron chips of the bed 1, which can effectively reduce the accumulation of iron chips and ensure the relative cleanliness of the bed 1.

[0059] The working status after removing the mold and product from the workbench 3 is as follows:

[0060] When the first electromagnet 23 is switched to the power-off state, the plug 252 is disengaged from the limit groove 19 and the limit block 25 is partially inserted into the limit groove 901. The driving motor 22 drives the workbench 3 to move back and forth between the maximum strokes at both ends. During the movement of the workbench 3, the scraping member 8 is used to scrape the upper surface of the workbench 3 while the first cleaning member 26 cleans both sides of the bed 1 within a certain area. The principle is as follows: the guide slopes 251 on both sides of the limit block 25 make it in a plug-in limit state with the limit groove 901 within a certain relative force; and after exceeding the relative force, , automatically disengages from the limit groove 901. When the limit block 25 is limitedly plugged into the limit groove 901, as the workbench 3 moves, the workbench 3 moves relative to the scraping member 8. When the scraping member 8 is located at either end of the workbench 3, the iron chips it scrapes can be swept from the workbench 3 to the bed 1 and are swept by the second cleaning member 27 to the chip conveyor 13. After the scraping member 8 moves to one end of the workbench 3, as the workbench 3 continues to move, the scraping member 8 is switched from being relatively locked with the bed 1 to being relatively disengaged, but the scraping member 8 is still in contact with the block 18 and is in a position relative to the workbench 3. The first cleaning member 26 is in a relatively static state (while the insert block 252 and the limit groove 19 are still in a disengaged state). In this state, the first cleaning member 26 is in a state of cleaning both sides of the bed 1; as the workbench 3 moves in the opposite direction, the scraping member 8 makes a slow relative motion relative to the workbench 3. This relative motion comes from the friction between the first cleaning member 26 and the bottom of the drain channel 11. Until the limit block 25 touches the outer wall of the mounting block 9, the relative motion speed of the scraping member 8 and the workbench 3 is increased to the motion speed of the workbench 3. The first cleaning member 26 is first stationary relative to the bed 1 and is re-engaged with the limit block 25 at the limit block. After the slot 901 is plugged in and out, it performs a cleaning movement relative to the bed 1. During the above process, the iron chips on both sides of the bed 1 cannot enter the chip conveyor belt 13 and will gather at both ends of the drainage channel 11. Finally, the first electromagnet 23 is switched to the energized state, and when the scraping member 8 is limited at the end of the workbench 3, the workbench 3 is moved to the maximum stroke, and the first cleaning member 26 is used to clean the collected iron chips to the chip conveyor belt 13; and the second cleaning member 27 can sweep the cleaned iron chips onto the chip conveyor belt 13 during the above process, that is, every time the workbench 3 moves to the maximum stroke at one end.

[0061] The first electromagnet 23 and the drive motor 22 are both connected to a controller, and the logic programming of the controller controls the timing of energizing or de-energizing the first electromagnet 23, as well as the speed and direction switching timing of the drive motor 22.

[0062] The chip collection box 10 and the auxiliary collection box 42 are preferably made of transparent materials, such as transparent plastic or transparent glass, to facilitate observation of the internal iron chip collection status. A weight sensor can also be installed inside. When the weight reaches a preset value, a signal is sent to the controller. The controller controls the alarm to alert the operator to dump it in time. The second electromagnet and a control switch are connected in series in a circuit. The operator can control the power supply or power loss by manually pressing the control switch.

[0063] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A machining center with a chip cleaning function, comprising a bed (1) and a workbench (3), wherein the workbench (3) moves back and forth along the length direction of the bed, and is characterized in that: The bed (1) is vertically provided with enclosures (2), a cleaning assembly is provided on the workbench (3), and transfer and collection components are provided at both ends of the bed (1) corresponding to the movement of the workbench (3), and the cleaning assembly includes a first cleaning component and a second cleaning component; The first cleaning component comprises a scraping member (8), first cleaning members (26) located at both ends of the scraping member (8), and a switching component; the scraping member (8) is arranged on the upper surface of the workbench (3) and is used to clean the iron filings on the upper surface of the workbench (3) and the mounting groove (4) on the upper surface; the first cleaning member (26) is used to clean the area of ​​the bed located on both sides of the workbench (3); the switching component is arranged between the enclosure (2), the scraping member (8) and the workbench (3) and is used to realize the switching of the connection between the scraping member (8) and the enclosure (2) or the connection between the scraping member (8) and the workbench (3); The switching assembly comprises recessed receiving grooves (8011) at both ends of the scraping member (8), mounting blocks (9) fixedly arranged in the middle of the enclosure (2) on both sides of the bed (1), and a limiting groove (901) arranged on one side of the mounting block (9) close to the scraping member (8), a limiting block (25) is elastically and telescopically arranged in the receiving groove (8011), an insert block (252) is vertically extended downward at one end of the limiting block (25) away from the limiting groove (901), and a limiting groove (19) is recessed at both ends of the side wall of the workbench (3) A first electromagnet (23) is fixed to the bottom of the accommodating groove (8011), and an elastic member (24) with two ends fixed to the first electromagnet (23) and the limiting block (25) is provided between the first electromagnet (23) and the limiting block (25). When the first electromagnet (23) is energized, the limiting block (25) partially extends and plugs into the limiting groove (901), and the plug (252) is separated from the limiting groove (19); when the first electromagnet (23) loses power, the limiting block (25) retracts and disengages from the limiting groove (901), and the plug (252) is inserted into any limiting groove (19); The second cleaning assembly includes a one-way cleaning assembly, which is provided with two groups and is respectively located at both ends of the lower end of the workbench (3) along its movement direction. The one-way cleaning assembly includes a second cleaning member (27) pivotally connected to the lower surface of the workbench (3) and a baffle (28) provided on a side opposite to the two groups of second cleaning members (27); The transfer and collection component comprises a chip conveyor belt (13) whose conveying direction is perpendicular to the cleaning direction of the first cleaning member (26) and the second cleaning member (27) and can receive the iron chips cleaned by the first cleaning member (26) and the second cleaning member (27), a collection port (15) for collecting coolant and iron chips arranged at the four corners of the bed (1) below the two ends of the chip conveyor belt (13) in the conveying direction, and a chip-liquid separation mechanism arranged at the lower end of the bed (1) and connected to the collection port (15); The specific cleaning process needs to be realized in combination with the movement of the workbench (3) itself and the switching of the switching component. The scraping member (8) and the first cleaning member (26) are fixedly connected, and there are two states between the two and the workbench (3): relative movement and relative stillness. When the scraping member (8) and the first cleaning member (26) are still relative to the bed (1), the scraping member (8) moves relative to the workbench (3) and is in a state of scraping the upper surface of the workbench (3); when the scraping member (8) and the second cleaning member (27) move relative to the bed (1), the scraping member (8) is still relative to the workbench (3) and the first cleaning member (26) is in a state of cleaning both sides of the bed (1). Under the action of the switching component, the first cleaning member (26) realizes the switching of the limit positions at both ends of the workbench (3), thereby being able to clean both sides of the bed (1) in place.

2. The machining center with iron chip cleaning function according to claim 1, characterized in that: Stoppers (18) for limiting the maximum travel of the scraping member (8) are provided at both ends of the side walls of the workbench (3), and the limit blocks (25) are provided on both sides of the movement direction of the workbench (3) so as to drive the limit blocks (25) out of or into the guide slopes (251) of the limit groove (901) when the relative force between the limit blocks (25) and the inner wall of the limit groove (901) or between the limit blocks (25) and the outer wall of the mounting block (9) exceeds a preset value.

3. The machining center with iron chip cleaning function according to claim 1, characterized in that: The scraping member (8) comprises a flexible scraping block (802) embedded in each mounting groove (4) and a flexible scraping strip (801) attached to the upper surface of the workbench (3) and fixed to all the flexible scraping blocks (802). The flexible scraping strip (801) and the flexible scraping blocks (802) are arranged on both sides of the moving direction of the workbench (3) to form inclined surfaces for shoveling chips. A concave cavity (804) is recessed at the lower end of the flexible scraping strip (801) and / or the flexible scraping block (802). A buffer rolling component for improving the moving process of the scraping member (8) is vertically elastically lifted in the concave cavity (804).

4. The machining center with iron chip cleaning function according to claim 3, characterized in that: The buffer rolling assembly comprises a buffer block (805) vertically inserted into a concave cavity (804), a first rolling body (807) arranged at the lower end of the buffer block (805), and a buffer spring (806) connected between the concave cavity (804) and the buffer block (805) for driving the first rolling body (807) to contact the upper surface of the workbench (3) and / or the bottom of the mounting groove (4).

5. The machining center with iron chip cleaning function according to claim 1, characterized in that: The movement of the chip conveyor belt (13) and the movement of the workbench (3) are synchronously controlled by a drive motor (22). A drive guide assembly is provided between the workbench (3) and the bed. The drive guide assembly is a third screw slide assembly. The motor shaft of the drive motor (22) and one end of the screw rod (29) of the third screw slide assembly are synchronously rotated through a first synchronous structure. The chip conveyor belt (13) is tensioned on two transmission rollers (38). The transmission rollers (38) are rotatably provided on the bed (1). The rotating shaft of one transmission roller and the motor shaft of the drive motor (22) are synchronously rotated through a second synchronous structure consistent with the first synchronous structure.

6. The machining center with iron chip cleaning function according to claim 5, characterized in that: The first synchronization structure comprises a first gear (33) coaxially fixed on the motor shaft, a second gear (34) coaxially fixed on one end of the screw rod (29), and a first synchronization chain (35) synchronously meshed with the first gear (33) and the second gear (34).

7. The machining center with iron chip cleaning function according to claim 1, characterized in that: The bed (1) is located at both ends of the moving direction of the workbench (3) and is recessed with mounting grooves (12) in a direction perpendicular to the moving direction of the workbench (3). The collecting ports (15) are located at both ends of the bottom of the mounting groove (12). The chip conveyor belt (13) is installed in the mounting groove (12). Anti-skid protrusions (14) are protruded on the outer ring wall of the chip conveyor belt (13) at intervals around the circumference thereof. A placement groove for accommodating iron chips is formed between the side walls of the mounting groove (12) and the adjacent anti-skid protrusions (14).

8. The machining center with iron chip cleaning function according to claim 1, characterized in that: The chip-liquid separation mechanism comprises a coolant storage box (31) arranged in the middle of the lower end surface of the bed (1) and a separation box located at both ends of the lower end surface of the bed (1). The separation box comprises a box body and a chip collecting box (10) which is pulled out from the sealing side and arranged in the upper middle of the box body. The chip collecting box (10) is a "V"-shaped box body with both ends tilted downward toward the middle. The two ends of the chip collecting box (10) are located directly below the collecting port (15). The interior of the separation box is divided into a collecting port and a collecting port below the chip collecting box (10). The auxiliary chamber (44) communicated with the opening (15) and the liquid collecting chamber (43) located between the two auxiliary chambers (44); an auxiliary collecting box (42) plugged into and matched with the auxiliary chamber (44) is pulled out on the sealing side of the separation box; the bottom of the chip collecting box (10) is uniformly distributed with filter holes (1001) corresponding to the liquid collecting chamber (43) for intercepting iron chips and allowing coolant to seep downward; a drain pipe (32) is connected between the bottom of the liquid collecting chamber (43) and the coolant storage tank (31).

9. The machining center with iron chip cleaning function according to claim 8, characterized in that: An electromagnetic adsorption module (41) capable of adsorbing or desorbing iron chips is provided in the middle of the chip collecting box (10).

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