Machining center with circulating cooling system

Abstract

The utility model discloses a machining center with a circulating cooling system. The machining center comprises a machining center body, a circulating cooling device and a chip collecting mechanism. In the machining process, chippings containing cooling liquid are guided to the surface of the filtering plate through the chipping guiding plate, the cooling liquid contained in the chippings is drained downwards through the draining holes and returns to the water tank located at the bottom of the machining center body, so that the cooling liquid can be recycled, the filtering plate judges the weight of the chippings through the weighing sensor, and when the set weight is reached, the chippings are conveyed to the chipping guiding plate. An extending shaft of the air cylinder extends out to drive the push plate to push chippings on the surface of the filter plate out of the chipping discharging opening, the chippings are prevented from being accumulated in the machining center body, the chippings pushed out by the push plate are collected through the chipping collecting box, four sets of idler wheels are arranged on the lower wall of the chipping collecting box, the chippings can be pulled away easily, and the empty chipping collecting box can be replaced easily. The chip collecting box full of the chips can be pushed away and then recycled in a centralized mode, shutdown is not needed in the replacement process, and the influence on the machining efficiency is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to a machining center with a circulating cooling system. Background Art

[0002] The machining center is developed from the CNC milling machine. The biggest difference between the machining center and the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changing device in one clamping to achieve multiple machining functions. The machining center has high production efficiency. The machining center generally does not need to use special process equipment such as special fixtures. When replacing the workpiece, it only needs to call the machining program, clamping tools and adjust the tool data stored in the CNC device, thereby greatly shortening the production cycle. When the machining center is working, due to the continuous operation of its internal drive motor, main chassis and machining head, a large amount of heat will be generated. This requires a circulating cooling device to cool these electrical components to ensure machining efficiency. However, the general circulating cooling device cannot effectively dissipate the heat of the electrical components, cannot cool its own coolant, and the cooling effect is not obvious, and the normal operation of the electrical components cannot be guaranteed. Operation reduces the processing efficiency. For this reason, there are many public technologies on the market that propose improvement plans, such as a machining center with a circulating cooling function, which includes a casing and a circulating cooling mechanism; the casing: the left and right ends of its lower surface are symmetrically provided with diagonal bracing plates, a slide is provided between the left and right inner walls of the casing, the upper end of the slide is slidably connected to a workbench, the inner upper wall of the casing is provided with a motor, the outer arc surface of the motor is sleeved with a cavity plate, the upper and lower ends of the front side of the casing are symmetrically provided with slide plates, a frame plate is slidably connected between the two slide plates corresponding to the upper and lower longitudinal directions, and a protective door is provided inside the frame plate; the circulating cooling mechanism: arranged at the upper end of the casing; wherein: it also includes a control switch group, the control switch group is arranged at the front end of the upper surface of the casing, the input end of the control switch group is electrically connected to an external power supply, and the input end of the motor is electrically connected to the output end of the control switch group, the machining center with a circulating cooling function continuously takes away the surface temperature of the motor, performs a circulating cooling operation on the device, and improves the cooling efficiency;

[0003] However, in many other existing technologies including the above-mentioned improved technology, when the coolant is circulated, the coolant containing debris is filtered through a filter device and then circulated. The filter device is arranged inside the equipment, and it is inconvenient to open the equipment for maintenance. In addition, the internal storage capacity of debris is limited when the processing volume is large, and it is necessary to stop the machine frequently for processing, which affects the processing efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a machining center with a circulating cooling system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a machining center with a circulating cooling system, comprising a machining center body, a circulating cooling device and a chip collection mechanism, the left wall of the machining center body is provided with a chip discharge port which is through-through inside and outside, the chip collection mechanism comprises a chip guide plate, a filter plate and a chip collection box, the chip collection box is arranged on the left side of the machining center body, the chip guide plate is fixedly connected to the inner side wall of the machining center body in a shape of high on the right and low on the left, the inner side wall of the machining center body and located below the chip guide plate are fixedly connected to three groups of fixed frames in left and right distribution in sequence, and the three groups of fixed frames are arranged on the upper and lower sides of the three fixed frames. The walls are fixedly connected with support columns, the upper walls of the three groups of support columns are slidably connected with support sleeves, the filter plates are fixedly connected to the upper ends of the three groups of support sleeves, a sealing structure for sealing is arranged between the support columns and the support sleeves, and a weighing structure for detecting the weight of the filter plates is also arranged between the support columns and the support sleeves. The filter plates are higher on the left and lower on the right, and the left end passes through the chip discharge port and extends to the left side of the machining center body. The end of the filter plate extending to the left side of the machining center body is opposite to the chip box in upper and lower directions, and a pushing structure for pushing debris above the filter plate into the chip box is arranged on the upper wall of the filter plate.

[0006] As a further description of the above technical solution:

[0007] The sealing structure comprises two groups of sealing rings, both of which are sleeved on the circumferential outer wall of the support column and are distributed up and down, and the outer walls of the two groups of sealing rings are slidably connected to the inner wall of the support sleeve.

[0008] As a further description of the above technical solution:

[0009] The weighing structure is a weighing sensor, and the weighing sensor is arranged between the upper end of the support column and the inner upper wall of the support sleeve.

[0010] As a further description of the above technical solution:

[0011] The pushing structure includes a cylinder and a pushing plate. The cylinder is fixedly connected to the upper wall of the filter plate through a first fixing plate and a second fixing plate. The cylinder is opposite to the right half of the filter plate in the length direction. The pushing plate is fixedly connected to the end of the cylinder's extended shaft. The lower wall of the pushing plate is slidably connected to the upper wall of the filter plate.

[0012] As a further description of the above technical solution:

[0013] Baffles are arranged on the upper wall of the filter plate and near the front and rear sides, and a plurality of groups of drainage holes are arranged on the inner wall of the left half of the filter plate in the length direction and are connected vertically.

[0014] As a further description of the above technical solution:

[0015] A protective cover is fixedly connected to the left wall of the machining center body. The side view cross-section of the protective cover is in a U-shape with the opening facing downwards, and the outer wall of the chip collection box is slidably connected to the inner side wall of the protective cover.

[0016] As a further description of the above technical solution:

[0017] Four groups of rollers are arranged on the lower wall of the chip collection box. Between the side of the chip collection box facing the machining center body, a first permanent magnet block and a second permanent magnet block for mutual adsorption and fixation are respectively arranged. The opposite sides of the first permanent magnet block and the second permanent magnet block have opposite magnetic polarities.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, in the machining center with a circulating cooling system, during the machining process, the chips containing coolant are diverted to the surface of the filter plate through the chip guide plate. The coolant contained in the chips drains downward through the water drainage holes and returns to the water tank located at the bottom of the machining center body, enabling the coolant to be recycled. The filter plate judges the weight of the chips through the weighing sensor. When the set weight is reached, the extending shaft of the cylinder extends, driving the push plate to push the chips on the surface of the filter plate out from the chip discharge port, preventing the chips from accumulating inside the machining center body.

[0020] 2. Compared with the prior art, in the machining center with a circulating cooling system, the chips pushed out by the push plate are collected by the chip collection box. Four groups of rollers are arranged on the lower wall of the chip collection box, and the full chip collection box can be easily pulled away and replaced with an empty one. The full chip collection box can be pushed away and centrally recycled. The replacement process does not require the machine to stop, avoiding the impact on the machining efficiency. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of a machining center with a circulating cooling system proposed by the utility model;

[0022] Figure 2 It is a partial cross-sectional view of the internal structure of the machining center body of a machining center with a circulating cooling system proposed by the utility model;

[0023] Figure 3 It is of a machining center with a circulating cooling system proposed by the utility model Figure 2 Partial enlarged view at A in;

[0024] Figure 4 It is a partial top view structural diagram of the filter plate of a machining center with a circulating cooling system proposed by the utility model;

[0025] Figure 5 It is a partial cross-sectional view of the connection structure between the support column and the support sleeve of a machining center with a circulating cooling system proposed by the utility model.

[0026] Legend Explanation:

[0027] 1. Machining center body; 2. Protective cover; 3. Chip collection box; 4. Roller; 5. First permanent magnet; 6. Second permanent magnet; 7. Chip guide plate; 8. Fixed frame; 9. Support column; 10. Support sleeve; 11. Filter plate; 12. Baffle; 13. First fixing plate; 14. Second fixing plate; 15. Cylinder; 16. Pushing plate; 17. Drainage hole; 18. Weighing sensor; 19. Sealing ring; 20. Chip discharge port. Specific Embodiment

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to Figures 1 to 5 , a machining center provided by the present invention having a circulating cooling system: including a machining center body 1, a circulating cooling device, and a chip collection mechanism. The circulating cooling device is consistent with the prior art and circulates and cools the heat-generating part of the machining center body 1;

[0030] As Figure 1 , Figure 2 , Figure 3 , and Figure 4 shown, in order to facilitate chip collection, a chip discharge port 20 that penetrates inside and outside is provided on the left wall of the machining center body 1. The chip collection mechanism includes a chip guide plate 7, a filter plate 11, and a chip collection box 3. The chip collection box 3 is arranged on the left side of the machining center body 1. The left wall of the machining center body 1 is fixedly connected with a protective cover 2. The side view cross-section of the protective cover 2 is in a U shape with the opening facing downwards. The outer wall of the chip collection box 3 is slidably connected with the inner side wall of the protective cover 2. Four groups of rollers 4 are provided on the lower wall of the chip collection box 3. Between the side of the chip collection box 3 opposite to the machining center body 1, a first permanent magnet 5 and a second permanent magnet 6 for mutual adsorption and fixation are respectively provided. The opposite sides of the first permanent magnet 5 and the second permanent magnet 6 have opposite magnetic polarities. Multiple chip collection boxes 3 can be provided so that an empty one can be replaced in time after one chip collection box 3 is full. The rollers 4 are provided to facilitate the movement of the chip collection box 3. The first permanent magnet 5 and the second permanent magnet 6 can make the chip collection box 3 and the machining center body 1 mutually adsorb and fix, avoiding displacement during use;

[0031] As Figure 2As shown, in order to guide the chips generated after processing to the top of the filter plate 11, the chip guide plate 7 is fixedly connected to the inner wall of the machining center body 1 in a shape of high on the right and low on the left. The chips containing coolant generated during the machining process fall on the upper wall of the chip guide plate 7 and slide to the top of the filter plate 11 under the guidance of the slope of the chip guide plate 7.

[0032] like Figure 2 , Figure 4 As shown, in order to separate the chips containing coolant into solid and liquid, the inner wall of the machining center body 1 and below the chip guide plate 7 are fixedly connected with three groups of fixing frames 8 in a left-right distribution in sequence, the upper walls of the three groups of fixing frames 8 are fixedly connected with support columns 9, the upper walls of the three groups of support columns 9 are slidably connected with support sleeves 10, and the filter plate 11 is fixedly connected to the upper ends of the three groups of support sleeves 10. Baffles 12 are arranged on the upper wall of the filter plate 11 and near the front and rear sides. The inner wall of the left half of the filter plate 11 in the length direction is provided with a plurality of groups of drain holes 17 that are through-through from top to bottom. The filter plate 11 is The left side is higher than the right side, and the left end passes through the chip discharge port 20 and extends to the left side of the machining center body 1. The end of the filter plate 11 extending to the left side of the machining center body 1 is opposite to the chip collection box 3. After the chips are guided by the slope of the chip guide plate 7 and slide to the top of the filter plate 11, the coolant contained in the chips is drained downward through the drain hole 17 and finally flows into the coolant tank on the lower wall of the inner side of the machining center body 1 for recycling. The left side of the filter plate 11 is higher than the right side, so that the coolant will not flow into the chip collection box 3 along the filter plate 11 during drainage, thereby reducing the loss of coolant.

[0033] like Figure 5 As shown, in order to prevent the coolant from invading and affecting the weighing structure, a sealing structure for sealing is provided between the support column 9 and the support sleeve 10, and the sealing structure includes two sets of sealing rings 19, both of which are sleeved on the outer wall of the circumference of the support column 9 and are distributed up and down, and the outer walls of the two sets of sealing rings 19 are slidably connected with the inner wall of the support sleeve 10. The two sets of sealing rings 19 make the support column 9 and the support sleeve 10 maintain both a sliding connection and a sealing state, which can prevent the coolant from entering the support sleeve 10 during use and causing the weighing structure to malfunction;

[0034] like Figure 5 As shown, in order to obtain the weight information of the debris above the filter plate 11, a weighing structure for detecting the weight of the filter plate 11 is further provided between the support column 9 and the support sleeve 10. The weighing structure is a weighing sensor 18, which is provided between the upper end of the support column 9 and the inner upper wall of the support sleeve 10. The weight information of the debris above the filter plate 11 can be obtained through the weighing structure, and the pushing structure is started when the set weight is reached.

[0035] like Figure 2As shown, in order to push the debris above the filter plate 11 into the chip collecting box 3, the upper wall of the filter plate 11 is provided with a pushing structure for pushing the debris above the filter plate 11 into the chip collecting box 3, and the pushing structure includes a cylinder 15 and a pushing plate 16. The cylinder 15 is fixedly connected to the upper wall of the filter plate 11 through the first fixed plate 13 and the second fixed plate 14. The cylinder 15 is opposite to the right half of the length direction of the filter plate 11 up and down, and the pushing plate 16 is fixedly connected to the end of the extended shaft of the cylinder 15. The lower wall of the pushing plate 16 is slidably connected to the upper wall of the filter plate 11. The extended shaft of the cylinder 15 drives the pushing plate 16 to move to the left, thereby pushing the debris above the filter plate 11 out of the chip discharge port 20 and finally falling into the chip collecting box 3. After each shift is completed, the chip collecting box 3 can be replaced in turn. There is no need to open the equipment or shut down for maintenance during the chip cleaning process.

[0036] Working principle: the chips containing coolant generated during the machining process fall on the upper wall of the chip guide plate 7, and slide to the top of the filter plate 11 through the slope of the chip guide plate 7. After the chips slide to the top of the filter plate 11 through the slope of the chip guide plate 7, the coolant contained in the chips drains downward through the drain hole 17 and finally flows into the coolant tank on the inner lower wall of the machining center body 1 for recycling. The filter plate 11 is higher on the left and lower on the right, so that the coolant will not flow into the chip collection box 3 along the filter plate 11 during draining, reducing the loss of coolant. The weight information of the chips above the filter plate 11 can be obtained through the weighing structure. When the set weight is reached, the pushing structure is started, and the cylinder 15 extends the shaft to drive the push plate 16 to move to the left, thereby The debris above the filter plate 11 is pushed out from the chip discharge port 20 and finally falls into the chip collecting box 3. After each shift is completed, the chip collecting box 3 can be replaced in turn. There is no need to open the equipment or shut down for maintenance during chip cleaning. Two sets of sealing rings 19 are used to maintain a sliding connection and a sealed state between the support column 9 and the support sleeve 10, which can prevent the coolant from entering the support sleeve 10 during use and causing the weighing structure to fail. There can be multiple chip collecting boxes 3 so that an empty one can be replaced in time when a chip collecting box 3 is full. The roller 4 is provided to facilitate the movement of the chip collecting box 3. The first permanent magnet block 5 and the second permanent magnet block 6 can make the chip collecting box 3 and the machining center body 1 adsorb and fix each other to avoid displacement during use.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A machining center with a circulating cooling system, characterized in that: It includes a machining center body (1), a circulating cooling device and a chip collecting mechanism. A chip discharging port (20) that penetrates inside and outside is provided on the left wall of the machining center body (1). The chip collecting mechanism includes a chip guiding plate (7), a filter plate (11) and a chip collecting box (3). The chip collecting box (3) is arranged on the left side of the machining center body (1). The chip guiding plate (7) is fixedly connected to the inner side wall of the machining center body (1) in a shape with the right side higher than the left side. Three fixing frames (8) are fixedly connected to the inner side wall of the machining center body (1) and distributed left and right below the chip guiding plate (7) in sequence. Support columns (9) are fixedly connected to the upper walls of the three fixing frames (8). Support sleeves (10) are slidably connected to the upper walls of the three support columns (9). The filter plate (11) is fixedly connected to the upper ends of the three support sleeves (10). A sealing structure for sealing is arranged between the support column (9) and the support sleeve (10). A weighing structure for detecting the weight of the filter plate (11) is also arranged between the support column (9) and the support sleeve (10). The filter plate (11) is in a shape with the left side higher than the right side, and the left end penetrates through the chip discharging port (20) and extends to the left side of the machining center body (1). The end of the filter plate (11) extending to the left side of the machining center body (1) is vertically opposite to the chip collecting box (3). A pushing structure for pushing the chips above the filter plate (11) into the chip collecting box (3) is arranged on the upper wall of the filter plate (11).

2. A machining center with a circulating cooling system according to claim 1, characterized in that: The sealing structure includes two sealing rings (19). The two sealing rings (19) are both sleeved on the circumferential outer wall of the support column (9) and are distributed up and down. The outer walls of the two sealing rings (19) are slidably connected to the inner side wall of the support sleeve (10).

3. A machining center with a circulating cooling system according to claim 1, characterized in that: The weighing structure is a weighing sensor (18). The weighing sensor (18) is arranged between the upper end of the support column (9) and the inner upper wall of the support sleeve (10).

4. A machining center with a circulating cooling system according to claim 1, characterized in that: The pushing structure includes a cylinder (15) and a pushing plate (16). The cylinder (15) is fixedly connected to the upper wall of the filter plate (11) through a first fixing plate (13) and a second fixing plate (14). The cylinder (15) is vertically opposite to the right half part in the length direction of the filter plate (11). The pushing plate (16) is fixedly connected to the end of the extending shaft of the cylinder (15). The lower wall of the pushing plate (16) is slidably connected to the upper wall of the filter plate (11).

5. The machining center with a circulating cooling system according to claim 1, characterized in that: Baffles (12) are arranged on the upper wall of the filter plate (11) and near the front and rear sides. A plurality of groups of water draining holes (17) that penetrate up and down are arranged on the inner wall of the left half part in the length direction of the filter plate (11).

6. The machining center with a circulating cooling system according to claim 1, characterized in that: A protective cover (2) is fixedly connected to the left wall of the machining center body (1). The side view cross section of the protective cover (2) is in a shape of a reversed C with the opening facing downwards. The outer wall of the chip collecting box (3) is slidably connected to the inner side wall of the protective cover (2).

7. The machining center with a circulating cooling system according to claim 1, characterized in that: Four rollers (4) are arranged on the lower wall of the chip collecting box (3). A first permanent magnet block (5) and a second permanent magnet block (6) for mutually adsorbing and fixing are respectively arranged between the side of the chip collecting box (3) opposite to the machining center body (1). The opposite sides of the first permanent magnet block (5) and the second permanent magnet block (6) have opposite magnetic polarities.

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