A CNC machine tool for orbital grinding

Abstract

The present invention discloses a track grinding CNC machine tool, which belongs to the technical field of grinding machine tools. It comprises: a horizontal base, a vertical base, which is arranged perpendicularly to the horizontal base and fixed in the middle of the horizontal base, an adjustment frame, which is arranged on the vertical base, a grinding module, which is arranged on the adjustment frame, a processing adjustment block, which is arranged on the horizontal base, and an adjustment structure, which is arranged on the vertical base and connected to the adjustment frame, and the adjustment structure is used to change the distance between the adjustment frame and the horizontal base. The present invention provides a sealing component on the sealing block, so that when the processing adjustment block slides on the guide rail groove, the sealing component can prevent the paste formed by the mixture of coolant and grinding particles from invading the connection between the processing adjustment block and the guide rail groove, thereby ensuring that the processing adjustment block can slide normally on the guide rail groove for a long time.

Description

Technical Field

[0001] The invention relates to a track grinding numerical control machine tool, belonging to the technical field of grinding machine tools. Background Art

[0002] CNC grinding machines are one of the core equipment in modern precision manufacturing. They use computer digital control technology to achieve precise programming control of the grinding wheel and workpiece movement, completing high-precision, high-efficiency and high-consistency grinding processes.

[0003] In actual working conditions, CNC grinders will produce a large amount of fine powder when grinding workpieces. After the fine powder is fully mixed with the coolant, it will form a paste. The paste can easily invade the moving pair gap between the guide rail and the slider, causing abnormal wear of the guide rail and causing the machine tool to malfunction. Therefore, there are certain problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a CNC machine tool for track grinding, which solves the problem in the prior art that the micropowder produced by processing will form a paste after being fully mixed with the coolant, and the paste can easily invade the moving pair gap between the guide rail and the slider, causing abnormal wear, creeping, loss of precision and even jamming of the guide rail.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: A CNC machine tool for track grinding, comprising:

[0006] Horizontal base,

[0007] The vertical base is perpendicular to the horizontal base and fixed in the middle of the horizontal base.

[0008] Adjustable frame, set on a vertical base,

[0009] Grinding module, set on the adjustment frame,

[0010] Processing adjustment block, set on the horizontal base,

[0011] The adjustment structure is arranged on the vertical base and connected to the adjustment frame. The adjustment structure is used to change the distance between the adjustment frame and the horizontal base.

[0012] The working structure is arranged on the adjustment frame and connected to the grinding module. The working structure is used to change the distance between the grinding module and the processing adjustment block.

[0013] The sealing block is set at the connection between the end of the processing adjustment block and the horizontal base.

[0014] Among them, a first fixed guide rail is fixedly set on the horizontal base, and a guide rail groove is opened on the first fixed guide rail. The middle part of the processing adjustment block extends into the guide rail groove and slides into the guide rail groove. A sealing component for tightly abutting the guide rail groove is set in the sealing block.

[0015] By adopting the above technical solution, through the adjustment structure and the working structure, the grinding module can be moved toward and away from the horizontal base in the horizontal and vertical directions, thereby improving the degree of freedom during the grinding operation. At the same time, a sealing assembly is provided on the sealing block, so that when the processing adjustment block slides on the guide rail groove, the sealing assembly can prevent the paste formed by the mixture of coolant and grinding particles from invading the connection between the processing adjustment block and the guide rail groove, thereby ensuring that the processing adjustment block can slide normally on the guide rail groove for a long time, avoiding the paste from invading the connection between the processing adjustment block and the guide rail groove, greatly reducing the abnormal wear of the paste on the guide rail, and helping to reduce the failure rate of machine tools.

[0016] The present invention is further configured as follows: the regulating structure includes:

[0017] The clamping seat is fixed on the vertical base.

[0018] Adjust the threaded shaft, rotate it on the clamping seat, and adjust the threaded shaft to extend towards the horizontal base.

[0019] The adjusting motor is fixed on the vertical base and is connected to the end of the adjusting threaded shaft away from the horizontal base.

[0020] The adjusting thread block is sleeved on the adjusting thread shaft and is threadedly connected to the adjusting thread shaft. The adjusting thread block extends toward the adjusting frame and is fixedly connected to the adjusting frame.

[0021] By adopting the above technical solution, after the adjusting motor is started, it drives the adjusting thread shaft to rotate, and under the action of the thread structure, it drives the adjusting thread block to slide along the axial direction of the adjusting thread shaft, so that the adjusting thread block drives the adjusting frame to move toward the horizontal base or close to the horizontal base, thereby achieving the purpose of adjusting the position of the grinding module.

[0022] The present invention is further configured as follows: the working structure includes:

[0023] The lifting threaded shaft is rotated and set on the adjustment frame.

[0024] The lifting motor is fixed on the adjustment frame and is connected to the end of the lifting threaded shaft.

[0025] The second fixed guide rail is fixed on the adjustment frame and extends in the same direction as the axial direction of the lifting thread shaft. A lifting sliding block is slidably provided on the second fixed guide rail.

[0026] The lifting plate is fixed on the lifting sliding block, and the lifting plate is partially sleeved on the lifting thread shaft and is threadedly connected to the lifting thread shaft.

[0027] The connecting frame is fixed on the side of the lifting plate facing the horizontal base, and the connecting frame is fixedly connected to the grinding module.

[0028] By adopting the above technical solution, after the lifting motor is started, it drives the lifting threaded shaft to rotate, and under the action of the threaded structure, the lifting plate slides along the extension direction of the second fixed guide rail. During the sliding process of the lifting plate, the sliding direction of the lifting plate is limited by the sliding of the lifting sliding block on the second fixed guide rail, so that the lifting plate drives the grinding module to move through the connecting frame, thereby achieving the purpose of adjusting the position of the grinding module.

[0029] The present invention is further configured as follows: a processing threaded shaft extending in the same direction as the first fixed guide rail is rotatably arranged on the horizontal base, a processing motor poweredly connected to the end of the processing threaded shaft is fixedly arranged on the horizontal base, and the part of the processing adjustment block facing the processing threaded shaft is sleeved on the processing threaded shaft and threadedly connected to the processing threaded shaft.

[0030] By adopting the above technical solution, after the processing motor is started, it drives the processing thread shaft to rotate, and under the action of the thread structure, it drives the processing adjustment block to slide, thereby achieving the purpose of adjusting the position of the processing adjustment block.

[0031] The present invention is further configured as follows: the sealing assembly comprises:

[0032] The sealing cavity is opened in the sealing block and the sealing cavity penetrates the sealing block toward the side of the guide rail groove to form a through channel.

[0033] The sealing adjustment block is arranged in the sealing cavity and slides toward the through channel. A switching cavity is opened in the sealing adjustment block.

[0034] The pressure block is fixed in the switching cavity. One end of the pressure block extends into the sealed cavity. The outer contour of the pressure block in the sealed cavity is the same as the inner contour of the guide rail groove.

[0035] The sealing belt is arranged in the switching chamber, and the sealing belt is arranged in an annular shape and surrounds the pressure block.

[0036] The portion of the sealing belt that bypasses the pressure block is located between the guide rail groove and the pressure block. The sealing block is provided with an inspection channel connected to the sealing cavity, and the sealing block is provided with a driving structure for driving the sealing adjustment block to slide.

[0037] The present invention is further configured as follows: the driving structure includes:

[0038] The sliding groove is opened on the side of the sealing block opposite to the through channel, and the sliding groove is connected to the sealing cavity

[0039] The pressing plate has one end fixed on the sealing adjustment block, and the other end of the pressing plate passes through the sliding slot and extends to the outside of the sealing block.

[0040] The electric push rod is fixed on the processing adjustment block, and the output end of the electric push rod is connected to the pressing plate power.

[0041] By adopting the above technical solution, after the electric push rod is started, it drives the pressing plate to slide in the sliding groove, thereby driving the sealing adjustment block to slide, and then changing the distance between the pressure block and the guide rail groove wall. When sealing is required, the electric push rod drives the pressing plate to move toward the guide rail groove, and then drives the pressure block to move toward the guide rail groove through the sealing adjustment block, so that the sealing belt is filled between the pressure block and the guide rail groove. At this time, the sealing belt can fill the gap between the pressure block and the guide rail groove to achieve the purpose of sealing, avoiding paste objects from invading the middle of the processing adjustment block through the gap between the guide rail groove and the processing adjustment block, and reducing the impact of the paste objects on the processing adjustment block.

[0042] The present invention is further configured as follows: a driving wheel is provided in the switching chamber and is bypassed by the sealing belt's circumferential path; a switching motor is provided in the through channel and is connected to the driving wheel's rotating shaft; the switching motor is fixed to the outer side surface of the sealing adjustment block; and the driving wheel is engaged with the sealing belt.

[0043] By adopting the above technical solution, after the sealing belt is pressed between the guide rail groove and the pressure block, as the processing adjustment block slides, the sealing belt and the guide rail groove will wear. After a processing cycle, the electric push rod starts to drive the pressing plate to move away from the guide rail groove, thereby releasing the squeezing of the sealing belt, and then the switch motor starts to drive the driving wheel to rotate, and under the action of the tooth engagement, the insertion groove moves in the circumferential direction, so that the part of the sealing belt that is squeezed and worn is transferred in the circumferential direction of the sealing belt, and the part of the sealing belt that is not squeezed and worn is replaced to the side of the pressure block facing the guide rail groove, and then the switch motor stops moving and the electric push rod starts to drive the pressing plate to move in the direction of the guide rail groove, so that the replaced part of the sealing belt is squeezed between the guide rail groove and the pressure block for sealing. In this way, the various parts of the sealing belt can maintain approximately the same degree of wear, avoid uneven wear, and help to increase the service life of the sealing belt.

[0044] The present invention is further configured as follows: a sealing plate is provided at the maintenance channel, a fixing plate is fixedly provided on the side of the sealing plate away from the guide rail groove, a scraper abutting the guide rail groove is provided on the side of the sealing plate facing the guide rail groove, a connecting structure is provided between the fixing plate and the sealing block, and the fixing plate is fixedly connected to the sealing block through the connecting structure.

[0045] The present invention is further configured as follows: the connection structure includes:

[0046] Insert block, fixed on the side of the fixing plate facing the sealing block,

[0047] The insertion groove is provided on the outer side of the sealing block, and the end of the insertion block away from the fixing plate extends into the insertion groove.

[0048] The limit slot is opened on the insert block.

[0049] The recovery cavity is provided on the inner wall of the insertion groove and can be aligned and connected with the limiting groove.

[0050] The abutment block is slidably arranged in the recovery cavity and the end of the abutment block can extend into the limiting groove. The end of the abutment block extending to the limiting groove is arranged in an arc shape.

[0051] The switching structure is arranged on a side of the recovery cavity away from the insertion groove, and the switching structure is used to limit the sliding of the abutment block in the recovery cavity.

[0052] The present invention is further configured as follows: the switching structure includes:

[0053] The limited sliding cavity is connected to the recovery cavity at one end.

[0054] The limiting plate is slidably arranged in the limiting sliding cavity and its end extends into the recovery cavity and is fixed to the abutment block.

[0055] The plug-in channel is opened through the limit plate.

[0056] The limiting bolt has one end inserted into the sealing block and is threadedly connected to the sealing block, and the other end of the limiting bolt extends to the outside of the sealing block. The end of the limiting bolt inserted into the sealing block can extend into the insertion channel.

[0057] The elastic element is arranged at one end of the limiting plate away from the abutting block, and the elastic element is respectively fixed to the inner wall of the limiting sliding cavity and the limiting plate.

[0058] By adopting the above technical solution, the sealing plate closes the inspection channel, and the scraper abuts against the guide rail groove. At this time, the insertion block is inserted into the insertion groove, the limit groove is aligned with the recovery chamber, the end of the abutment block is inserted into the limit groove, and one end of the limit bolt inserted into the sealing block is located in the insertion channel, and the insertion block cannot fall out of the insertion groove. At this time, during the reciprocating sliding of the machining adjustment block, the scraper can scrape off the mixture of cutting powder and coolant that has not formed a paste. When the machining adjustment block moves to the end of the first fixed guide rail, the mixture scraped by the scraper falls into the horizontal base, avoiding the mixture from remaining in the guide rail groove for a long time to form a paste. The scraper needs to be replaced after long-term use, or the switching motor and seal need to be switched. When the sealing belt is being maintained and repaired, the limiting bolt is turned so that one end of the limiting bolt inserted into the sealing block is moved out of the insertion channel. At this time, the limiting plate can slide in the limiting sliding cavity, and the fixing plate is forcibly moved in the direction away from the sealing block so that the insertion block has a tendency to move toward and away from the sealing block. At this time, the arc-shaped end of the abutment block is squeezed by the limiting groove so that the abutment block retracts toward the recovery cavity, thereby compressing the elastic element through the limiting plate. When the abutment block is completely out of the limiting groove, the insertion block can be out of the insertion groove, thereby completing the disassembly of the sealing plate. At this time, the scraper, switching motor and sealing belt can be maintained without the help of special tools, thereby improving the maintenance convenience of the sealing assembly.

[0059] The beneficial effects of the present invention are as follows: through the adjustment structure and the working structure, the grinding module can be moved toward and away from the horizontal base in the horizontal direction and the vertical direction, thereby improving the degree of freedom during the grinding operation. At the same time, a sealing component is arranged on the sealing block, so that when the processing adjustment block slides on the guide rail groove, the sealing component can prevent the paste formed by the mixture of coolant and grinding particles from invading the connection between the processing adjustment block and the guide rail groove, thereby ensuring that the processing adjustment block can slide normally on the guide rail groove for a long time, avoiding the paste from invading the connection between the processing adjustment block and the guide rail groove, greatly reducing the abnormal wear of the paste on the guide rail, and helping to reduce the failure rate of machine tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a structural schematic diagram of the present invention;

[0061] Figure 2 It is a schematic diagram of the structure inside the machine tool housing in the present invention;

[0062] Figure 3 It is a schematic diagram of the local structure of the sealing block in the present invention;

[0063] Figure 4 This is a cross-sectional view of the structure of the sealing block in the present invention;

[0064] Figure 5 for Figure 4 A magnified view of the structure at point A;

[0065] Figure 6 Schematic diagram of the structure of the horizontal base and the vertical base in the present invention;

[0066] Figure 7 It is a cross-sectional view of the structure inside the horizontal base and the vertical base in the present invention.

[0067] In the figure: 10, machine tool housing; 11, closed casement door; 12, operating terminal; 13, horizontal base; 14, vertical base; 15, clamping seat; 16, mounting seat; 17, first fixed guide rail; 18, guide rail groove; 19, drainage trough; 20, machining adjustment block; 21, machining clamping block; 22, machining motor; 23, machining threaded shaft; 24, adjustment motor; 25, adjustment thread block; 26, adjustment threaded shaft; 27, lifting threaded shaft; 28, adjustment frame; 29, lifting motor; 30, second fixed guide rail; 31, lifting slide block; 32, lifting plate; 33, connecting frame; 3 4. Grinding module; 35. Scraper; 36. Sealing plate; 37. Fixed plate; 38. Sealing block; 39. Insert block; 40. Sealing adjustment block; 41. Driving wheel; 42. Pressure block; 43. Sealing belt; 44. Sliding groove; 45. Pressing plate; 46. Electric push rod; 47. Switching chamber; 48. Inserting groove; 49. Recovery chamber; 50. Abutment block; 51. Limiting groove; 52. Limiting plate; 53. Insertion channel; 54. Limiting sliding chamber; 55. Elastic element; 56. Limiting bolt; 57. Sealing chamber; 58. Switching motor; 60. Arc-shaped rib plate; 61. Box-type support structure. DETAILED DESCRIPTION

[0068] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to specific illustrations.

[0069] like Figure 2 、 Figure 6 and Figure 7As shown, a CNC machine tool for track grinding includes a horizontal base 13, a vertical base 14, a machining adjustment block 20, an adjustment frame 28, a grinding module 34, a sealing block 38, an adjustment structure and a working structure. Two mounting seats 16 with the same extension direction as the horizontal base 13 are prefabricated on the horizontal base 13. A first fixed guide rail 17 is fixedly provided on the mounting seat 16. A guide rail groove 18 is provided on the first fixed guide rail 17. The extension direction of the first fixed guide rail 17 and the guide rail groove 18 is the same as that of the mounting seat 16. The vertical base 14 and the horizontal base 13 are arranged perpendicular to each other and fixed in the middle of the horizontal base 13. The horizontal base 13 and the vertical base 14 are integrated, and a box-type support structure 61 for strengthening the horizontal load capacity is provided inside the horizontal base 13 and the vertical base 14. The vertical base 14 is provided with arc-shaped ribs 60 on both sides of the box-type support structure 61. A drainage trough 19, connected to an external water collection device, is fixedly mounted at the junction of the horizontal base 13 and the vertical base 14. The drainage trough 19 extends in the same direction as the horizontal base 13. A machining adjustment block 20 is mounted on the horizontal base 13. The central portion of the machining adjustment block 20 extends into and abuts the guide rail groove 18. A machining clamping block 21 is fixedly mounted on the machining adjustment block 20. The machining clamping block 21 is tilted toward the drainage trough 19 and is connected to the drainage trough 19. The central portion of the vertical base 14 is hollow, and an adjustment frame 28 is mounted within this hollow portion of the vertical base 14. The grinding module 34 is set on the adjustment frame 28 through the working structure, and the working structure is used to change the distance between the grinding module 34 and the processing adjustment block 20. The adjustment frame 28 is set on the vertical base 14 through the adjustment structure, and the adjustment structure is used to change the distance between the adjustment frame 28 and the horizontal base 13. The sealing blocks 38 are set at both ends of the processing adjustment block 20 in the extension direction of the guide rail groove 18, and a sealing component for tightly abutting the guide rail groove 18 is set in the sealing block 38.

[0070] like Figure 2 As shown, the adjustment structure includes a clamping seat 15 fixed to the vertical base 14. The clamping seats 15 are respectively arranged at both ends of the vertical base 14 in the extension direction. An adjustment threaded shaft 26 is rotatably mounted on the clamping seat 15, and the adjustment threaded shaft 26 extends toward the horizontal base 13. The adjustment motor 24 is fixed to the vertical base 14 and is in power connection with the end of the adjustment threaded shaft 26 away from the horizontal base 13. The adjustment threaded block 25 is sleeved on the adjustment threaded shaft 26 and threadedly connected to the adjustment threaded shaft 26. The adjustment threaded block 25 extends toward the adjustment frame 28 and is fixedly connected to the adjustment frame 28. Also fixed to the vertical base 14 is a guide rail located radially on the adjustment threaded shaft 26, which is slidably connected to the adjustment threaded block 25.

[0071] like Figure 2As shown, the working structure includes a lifting threaded shaft 27, a lifting motor 29, a second fixed guide rail 30, a lifting plate 32, and a connecting frame 33. The lifting threaded shaft 27 is rotatably mounted on the adjustment frame 28. The lifting motor 29 is fixed to the adjustment frame 28 and is power-connected to the end of the lifting threaded shaft 27. The second fixed guide rail 30 is fixed to the adjustment frame 28 and extends in the same direction as the axial direction of the lifting threaded shaft 27. A lifting slide block 31 is slidably mounted on the second fixed guide rail 30. The lifting plate 32 is fixedly mounted on the lifting slide block 31. The lifting plate 32 partially sleeves on the lifting threaded shaft 27 and is threadedly connected to the lifting threaded shaft 27. The connecting frame 33 is fixed to the side of the lifting plate 32 facing the horizontal base 13. The connecting frame 33 is fixedly connected to the grinding module 34.

[0072] like Figure 2 As shown, a processing threaded shaft 23 with the same extension direction as the first fixed guide rail 17 is rotatably provided on the horizontal base 13, a processing motor 22 which is power-connected to the end of the processing threaded shaft 23 is fixedly provided on the horizontal base 13, and the part of the processing adjustment block 20 facing the processing threaded shaft 23 is sleeved on the processing threaded shaft 23 and is threadedly connected to the processing threaded shaft 23.

[0073] like Figures 2 to 5 As shown, the sealing assembly includes a sealing adjustment block 40, a pressure block 42, a sealing strip 43, and a sealing chamber 57. The sealing chamber 57 is provided in the sealing block 38 and the sealing chamber 57 penetrates the sealing block 38 toward the side of the guide rail groove 18 to form a through-channel. The sealing adjustment block 40 is disposed in the sealing chamber 57 and is slidably disposed toward the through-channel. A switching chamber 47 is provided in the sealing adjustment block 40, and the pressure block 42 is fixed in the switching chamber 47. One end of the pressure block 42 extends into the sealing chamber 57. The outer contour of the pressure block 42 within the sealing chamber 57 is the same as the inner contour of the guide rail groove 18. The sealing strip 43 is disposed in the switching chamber 47. The sealing strip 43 is annular and surrounds the pressure block 42. The portion of the sealing strip 43 that surrounds the pressure block 42 is located between the guide rail groove 18 and the pressure block 42. The sealing block 38 is provided with an inspection passage communicating with the sealing cavity 57 , the opening of the inspection passage faces away from the processing adjustment block 20 , and the sealing block 38 is provided with a driving structure for driving the sealing adjustment block 40 to slide.

[0074] like Figure 4 As shown, the drive structure includes a sliding groove 44, a pressing plate 45, and an electric push rod 46. The sliding groove 44 is located on the side of the sealing block 38 opposite the through-channel. The sliding groove 44 communicates with the sealing cavity 57, and the opening of the sliding groove 44 faces the middle of the processing and adjustment block 20. One end of the pressing plate 45 is fixed to the sealing and adjustment block 40, and the other end of the pressing plate 45 passes through the sliding groove 44 and extends to the outside of the sealing block 38. The electric push rod 46 is fixed to the processing and adjustment block 20, and the output end of the electric push rod 46 is in power connection with the pressing plate 45.

[0075] like Figure 4 As shown, a driving wheel 41 is rotatably provided in the switching chamber 47 and is bypassed by the surrounding path of the sealing belt 43. At least two driving wheels 41 are provided in the switching chamber 47. The surrounding path of the sealing belt 43 bypasses two sealing belts 43 respectively, and the inner side of the sealing belt 43 and the outer curved surface of the driving wheel 41 are both tooth-like structures. The driving wheel 41 is meshed with the sealing belt 43. A switching motor 58 connected to the rotating shaft power of the driving wheel 41 is provided in the through channel. The switching motor 58 is fixed to the outer side of the sealing adjustment block 40.

[0076] like Figures 3 to 5 As shown, a sealing plate 36 is provided at the inspection channel to close the opening of the inspection channel, a fixing plate 37 is fixedly provided on the side of the sealing plate 36 away from the guide rail groove 18, and a scraper 35 is provided on the side of the sealing plate 36 facing the guide rail groove 18 to abut against the guide rail groove 18. The scraper 35 can be a scraper made of rubber material or a brush made of nylon material. When the scraper 35 is made of rubber material, the scraper 35 is not easy to undergo elastic deformation. At this time, the scraper 35 has a strong scraping effect on the mixture of cutting chips and coolant attached to the guide rail groove 18. It is generally used in working conditions where the surface flatness of the guide rail groove 18 is high and the surface cleanliness of the guide rail groove 18 is high during processing. When the scraper 35 is made of nylon, the scraper 35 is prone to elastic deformation during movement, so it is easy to produce a gap with the guide rail groove 18, and the scraping effect on the mixture of cutting chips and coolant attached to the guide rail groove 18 is weak. It is generally used in working conditions where the surface flatness of the guide rail groove 18 is not high and the surface cleanliness of the guide rail groove 18 is not high during processing.

[0077] During use, the coolant used to cool the workpiece can cool the scraper 35 and the sealing belt 43 due to friction with the guide rail groove 18 when flowing to the guide rail groove 18, thereby preventing the sealing belt 43 and the scraper 35 from overheating and accelerating loss.

[0078] like Figure 3 and Figure 5As shown, a connecting structure is provided between the fixed plate 37 and the sealing block 38, and the fixed plate 37 is fixedly connected to the sealing block 38 via the connecting structure. The connecting structure includes an insertion block 39, an insertion slot 48, a recovery chamber 49, an abutment block 50, a limiting slot 51, and a switching structure. The insertion block 39 is fixed to the side of the fixed plate 37 facing the sealing block 38. The insertion slot 48 is provided on the outer side of the sealing block 38. The end of the insertion block 39 away from the fixed plate 37 extends into the insertion slot 48, and the insertion block 39 slides along the direction of the insertion slot 48. The limiting slot 51 is provided on the insertion block 39 and is located on the side of the insertion block 39 away from the guide groove 18. The recovery chamber 49 is provided on the inner wall of the insertion slot 48 and can be aligned and connected to the limiting slot 51. The abutment block 50 is slidably arranged in the recovery chamber 49, and the end of the abutment block 50 can extend into the limiting slot 51. The end of the abutment block 50 extending into the limiting slot 51 is arranged in an arc shape. The switching structure is provided on a side of the recovery cavity 49 away from the insertion slot 48 , and the switching structure is used to limit the sliding of the abutment block 50 in the recovery cavity 49 .

[0079] like Figure 5 As shown, the switching structure includes a limit plate 52, an insertion channel 53, a limit sliding cavity 54, an elastic element 55, and a limit bolt 56. One end of the limit sliding cavity 54 is connected to the recovery cavity 49. The limit plate 52 is slidably disposed within the limit sliding cavity 54, and its end extends into the recovery cavity 49 and is fixed to the abutment block 50. The insertion channel 53 extends through the limit plate 52 in the same direction as the insertion slot 48. One end of the limit bolt 56 is inserted into the sealing block 38 and is threadedly connected to the sealing block 38. The other end of the limit bolt 56 extends outside the sealing block 38. The end of the limit bolt 56 inserted into the sealing block 38 can extend into the insertion channel 53 and limit the sliding of the limit plate 52. The elastic element 55 is disposed at the end of the limit plate 52 away from the abutment block 50. The elastic element 55 is fixed to the inner wall of the limit sliding cavity 54 and the limit plate 52 respectively. The elastic element 55 includes but is not limited to an elastic telescopic rod, a spring, an elastic rubber block, etc. The elastic element 55 provides pressure for the limiting plate 52 toward the abutting block 50 .

[0080] like Figure 1 As shown, a machine tool housing 10 is fixedly mounted on the outside of the horizontal base 13 and the vertical base 14, enclosing the horizontal base 13 and the vertical base 14. The machine tool housing 10 is provided with a closed swing door 11 that connects the horizontal base 13 and the vertical base 14 to the environment outside the machine tool housing 10. An operation terminal 12 is fixedly mounted on the closed swing door 11. The operation terminal 12 is electrically connected to the processing motor 22, the adjustment motor 24, the lifting motor 29, the electric push rod 46, and the switching motor 58 via wires.

[0081] By integrating the horizontal base 13 and the vertical base 14, the processing time of the horizontal base 13 and the vertical base 14 is reduced, and the flatness of the processed surface is high, which can minimize the degree of distortion of the guide rails of each part during installation. At the same time, a box-type support structure 61 is set inside the horizontal base 13 and the vertical base 14, which can shift the overall center of gravity of the horizontal base 13 and the vertical base 14 from the middle to the surrounding areas, thereby improving the overall support of the horizontal base 13 and the vertical base 14. In addition, an arc-shaped rib plate 60 is set inside the part of the horizontal base 13 where the clamping seat 15 is installed, which can ensure the rigidity of the horizontal base 13 while reducing the weight, so that when the guide rail is installed on the horizontal base 13, the stress deformation of each part of the guide rail is reduced.

[0082] By adjusting the structure and the working structure, the grinding module 34 can be moved in the horizontal and vertical directions toward and away from the horizontal base 13, thereby improving the degree of freedom during the grinding operation. At the same time, a sealing assembly is provided on the sealing block 38, so that when the processing adjustment block 20 slides on the guide rail groove 18, the sealing assembly can prevent the paste formed by the mixture of coolant and grinding particles from invading the connection between the processing adjustment block 20 and the guide rail groove 18, thereby ensuring that the processing adjustment block 20 can slide normally on the guide rail groove 18 for a long time, avoiding the paste from invading the connection between the processing adjustment block 20 and the guide rail groove 18, affecting the normal sliding of the processing adjustment block 20, and helping to reduce the failure rate of machine tools.

[0083] When the adjustment motor 24 is activated, it rotates the adjustment threaded shaft 26. The threaded structure causes the adjustment threaded block 25 to slide axially along the adjustment threaded shaft 26, thereby causing the adjustment threaded block 25 to move the adjustment frame 28 toward or near the horizontal base 13, thereby adjusting the position of the grinding module 34. When the lifting motor 29 is activated, it rotates the lifting threaded shaft 27. The threaded structure causes the lifting plate 32 to slide along the extension direction of the second fixed guide rail 30. As the lifting plate 32 slides, the sliding direction of the lifting plate 32 is restricted by the sliding of the lifting slide block 31 on the second fixed guide rail 30. This causes the lifting plate 32 to move the grinding module 34 via the connecting frame 33, thereby adjusting the position of the grinding module 34. When the machining motor 22 is activated, it rotates the machining threaded shaft 23. The threaded structure causes the machining adjustment block 20 to slide, thereby adjusting the position of the machining adjustment block 20.

[0084] After the electric push rod 46 is started, it drives the pressing plate 45 to slide in the sliding groove 44, thereby driving the sealing adjustment block 40 to slide, and then changing the distance between the pressure block 42 and the wall of the guide rail groove 18. When sealing is required, the electric push rod 46 drives the pressing plate 45 to move toward the guide rail groove 18, and then drives the pressure block 42 to move toward the guide rail groove 18 through the sealing adjustment block 40, so that the sealing belt 43 is filled between the pressure block 42 and the guide rail groove 18. At this time, the sealing belt 43 can fill the gap between the pressure block 42 and the guide rail groove 18 to achieve the purpose of sealing, preventing paste objects from invading the middle of the processing adjustment block 20 through the gap between the guide rail groove 18 and the processing adjustment block 20, thereby reducing the impact of the paste objects on the processing adjustment block 20.

[0085] Since the sealing belt 43 is pressed between the guide rail groove 18 and the pressure block 42, as the processing adjustment block 20 slides, the sealing belt 43 and the guide rail groove 18 will wear out. After a processing cycle or according to the actual working conditions and the material of the sealing belt 43, the replacement cycle of the sealing belt 43 is determined. When the sealing belt 43 is replaced, the electric push rod 46 starts to drive the pressing plate 45 to move away from the guide rail groove 18, thereby releasing the squeeze on the sealing belt 43, and then the switching motor 58 is started to drive the driving wheel 41 to rotate, and under the action of the tooth meshing, the insertion groove 48 is moved in the circumferential direction, thereby The portion of the sealing belt 43 that is squeezed and worn is transferred along the circumferential direction of the sealing belt 43, and the portion of the sealing belt 43 that is not squeezed and worn is replaced to the side of the pressure block 42 facing the guide rail groove 18, and then the switching motor 58 stops moving and the electric push rod 46 starts to drive the pressing plate 45 to move in the direction of the guide rail groove 18, so that the replaced portion of the sealing belt 43 is squeezed between the guide rail groove 18 and the pressure block 42 for sealing. In this way, the various parts of the sealing belt 43 can maintain approximately the same degree of wear, avoid uneven wear, and help to increase the service life of the sealing belt 43.

[0086] The sealing plate 36 closes the inspection channel, and the scraper 35 abuts against the guide rail groove 18. At this time, the insertion block 39 is inserted into the insertion groove 48, the limiting groove 51 is aligned with the recovery chamber 49, the end of the abutment block 50 is inserted into the limiting groove 51, and one end of the limiting bolt 56 inserted into the sealing block 38 is located in the insertion channel 53, and the insertion block 39 cannot fall out of the insertion groove 48. At this time, during the reciprocating sliding of the processing adjustment block 20, the scraper 35 can scrape off the mixture of cutting powder and coolant that has not formed a paste. When the processing adjustment block 20 moves to the end of the first fixed guide rail 17, the mixture scraped by the scraper 35 falls into the horizontal base 13, preventing the mixture from remaining on the guide rail groove 18 for a long time to form a paste. The scraper 35 needs to be replaced after long-term use, or the switching motor 58 and the sealing belt 43 need to be maintained. During maintenance, the limiting bolt 56 is rotated so that one end of the limiting bolt 56 inserted into the sealing block 38 is moved out from the insertion channel 53. At this time, the limiting plate 52 can slide in the limiting sliding cavity 54. By forcibly pushing the fixing plate 37 in the direction away from the sealing block 38, the insertion block 39 has a tendency to move toward and away from the sealing block 38. At this time, the arc-shaped end of the abutment block 50 is squeezed by the limiting groove 51, causing the abutment block 50 to retract toward the recovery cavity 49, thereby compressing the elastic element 55 through the limiting plate 52. When the abutment block 50 is completely disengaged from the limiting groove 51, the insertion block 39 can be disengaged from the insertion groove 48, thereby completing the disassembly of the sealing plate 36. At this time, the scraper 35, the switching motor 58 and the sealing belt 43 can be maintained without the help of special tools, thereby improving the maintenance convenience of the sealing assembly.

[0087] Under actual working conditions, since the external environment and the processing environment are separated when the CNC machine tool is processing, the state of the scraper 35 cannot be observed in real time during the process of the processing adjustment block 20 driving the sealing block 38 to move. When the scraper 35 uses a structure that is easy to be entangled or stuck, such as a brush, the scraper 35 is likely to be entangled or stuck with foreign objects at the edge of the first fixed guide rail 17 during the movement of the processing adjustment block 20. At this time, when the processing adjustment block 20 moves toward the part away from the entanglement or sticking, the scraper 35 pulls the sealing plate 36 in the direction away from the sealing block 38 and tends to move. At this time, the scraper 35 is easily broken and damaged. Therefore, the limit bolt 56 can be rotated to make the limit bolt 56 stop under the action of the threaded structure. The end of the bolt 56 inserted into the sealing block 38 is pulled out from the insertion channel 53. When the scraper 35 exerts a pulling force on the fixed plate 37 through the sealing plate 36, the insertion block 39 moves in the direction away from the sealing block 38. At this time, under the action of the pulling force, the edge of the limit groove 51 presses the abutment block 50 into the recovery chamber 49, thereby releasing the connection between the insertion block 39 and the abutment block 50, and completing the complete separation of the sealing plate 36 and the fixed plate 37 from the sealing block 38. At this time, the sealing block 38 can follow the normal movement of the processing adjustment block 20, and the scraper 35, sealing plate 36, fixed plate 37 and insertion block 39 stay at the entangled or stuck part and remain stationary, avoiding abnormal damage to the scraper 35, sealing plate 36, fixed plate 37 and insertion block 39.

[0088] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC orbital grinding machine tool, characterized in that: include: Horizontal base (13), The vertical base (14) is arranged perpendicular to the horizontal base (13) and is fixed in the middle of the horizontal base (13). The adjustment frame (28) is arranged on the vertical base (14), The grinding module (34) is arranged on the adjustment frame (28), The processing adjustment block (20) is set on the horizontal base (13), An adjustment structure is provided on the vertical base (14) and connected to the adjustment frame (28), and the adjustment structure is used to change the distance between the adjustment frame (28) and the horizontal base (13). A working structure is provided on the adjustment frame (28) and connected to the grinding module (34). The working structure is used to change the distance between the grinding module (34) and the processing adjustment block (20). The sealing block (38) is provided at the connection between the end of the processing adjustment block (20) and the horizontal base (13). A first fixed guide rail (17) is fixedly provided on the horizontal base (13), a guide rail groove (18) is provided on the first fixed guide rail (17), a middle portion of the processing adjustment block (20) extends into the guide rail groove (18) and is in sliding contact with the guide rail groove (18), and a sealing assembly for tightly contacting the guide rail groove (18) is provided in the sealing block (38); The sealing assembly includes: The sealing cavity (57) is opened in the sealing block (38) and the sealing cavity (57) penetrates the sealing block (38) toward one side of the guide rail groove (18) to form a through channel. The sealing adjustment block (40) is arranged in the sealing cavity (57) and the sealing adjustment block (40) is slidably arranged toward the through-channel. A switching cavity (47) is opened in the sealing adjustment block (40). The pressure block (42) is fixed in the switching chamber (47), one end of the pressure block (42) extends into the sealing chamber (57), and the outer contour of the pressure block (42) in the sealing chamber (57) is the same as the inner contour of the guide rail groove (18). The sealing belt (43) is arranged in the switching chamber (47), and the sealing belt (43) is arranged in an annular shape and has a surrounding path that bypasses the pressure block (42). The portion of the sealing belt (43) that bypasses the pressure block (42) is located between the guide rail groove (18) and the pressure block (42), the sealing block (38) is provided with an inspection channel that communicates with the sealing cavity (57), and the sealing block (38) is provided with a driving structure for driving the sealing adjustment block (40) to slide; A driving wheel (41) is rotatably provided in the switching chamber (47) and is bypassed by the surrounding path of the sealing belt (43). A switching motor (58) is provided in the through channel and is connected to the rotating shaft of the driving wheel (41). The switching motor (58) is fixed to the outer side surface of the sealing adjustment block (40), and the driving wheel (41) is meshed with the sealing belt (43).

2. The orbital grinding CNC machine tool according to claim 1, characterized in that: The regulatory structure includes: The clamping seat (15) is fixedly mounted on the vertical base (14). The threaded shaft (26) is adjusted and rotatably disposed on the clamping seat (15), and the threaded shaft (26) is adjusted to extend in the direction toward the horizontal base (13). The adjusting motor (24) is fixedly mounted on the vertical base (14) and is connected to the end of the adjusting threaded shaft (26) away from the horizontal base (13). The adjusting thread block (25) is sleeved on the adjusting thread shaft (26) and is threadedly connected to the adjusting thread shaft (26). The adjusting thread block (25) extends toward the adjusting frame (28) and is fixedly connected to the adjusting frame (28).

3. The orbital grinding CNC machine tool according to claim 1, characterized in that: The work structure includes: The lifting threaded shaft (27) is rotatably mounted on the adjustment frame (28). The lifting motor (29) is fixed on the adjustment frame (28) and is connected to the end of the lifting threaded shaft (27). The second fixed guide rail (30) is fixed on the adjustment frame (28) and extends in the same direction as the axial direction of the lifting threaded shaft (27). A lifting sliding block (31) is slidably provided on the second fixed guide rail (30). The lifting plate (32) is fixedly arranged on the lifting sliding block (31), and the lifting plate (32) is partially sleeved on the lifting threaded shaft (27) and is threadedly connected to the lifting threaded shaft (27). The connecting frame (33) is fixed on the side of the lifting plate (32) facing the horizontal base (13), and the connecting frame (33) is fixedly connected to the grinding module (34).

4. The orbital grinding CNC machine tool according to claim 1, characterized in that: A processing threaded shaft (23) extending in the same direction as the first fixed guide rail (17) is rotatably provided on the horizontal base (13), a processing motor (22) connected to the end of the processing threaded shaft (23) is fixedly provided on the horizontal base (13), and a portion of the processing adjustment block (20) facing the processing threaded shaft (23) is sleeved on the processing threaded shaft (23) and is threadedly connected to the processing threaded shaft (23).

5. The orbital grinding CNC machine tool according to claim 1, characterized in that: The drive structure includes: The sliding groove (44) is provided on the side of the sealing block (38) opposite to the through-channel, and the sliding groove (44) is communicated with the sealing cavity (57). A pressing plate (45) is fixed at one end to the sealing adjustment block (40), and the other end of the pressing plate (45) passes through the sliding groove (44) and extends to the outside of the sealing block (38). The electric push rod (46) is fixed on the processing adjustment block (20), and the output end of the electric push rod (46) is connected to the pressing plate (45) in a power manner.

6. The orbital grinding CNC machine tool according to claim 1, characterized in that: A sealing plate (36) is provided at the maintenance passage, a fixing plate (37) is fixedly provided on the side of the sealing plate (36) away from the guide rail groove (18), a scraper (35) abutting against the guide rail groove (18) is provided on the side of the sealing plate (36) facing the guide rail groove (18), a connecting structure is provided between the fixing plate (37) and the sealing block (38), and the fixing plate (37) is fixedly connected to the sealing block (38) through the connecting structure.

7. The orbital grinding CNC machine tool according to claim 6, characterized in that: The connection structure includes: Insert block (39), fixed on the side of the fixing plate (37) facing the sealing block (38), The insertion groove (48) is formed on the outer side of the sealing block (38), and the end of the insertion block (39) away from the fixing plate (37) extends into the insertion groove (48). The limiting groove (51) is provided on the insert block (39). The recovery chamber (49) is provided on the inner wall of the insertion groove (48) and can be aligned and communicated with the limiting groove (51). The abutment block (50) is slidably arranged in the recovery chamber (49) and the end of the abutment block (50) can extend into the limiting groove (51). The end of the abutment block (50) extending to the limiting groove (51) is arranged in an arc shape. The switching structure is arranged on a side of the recovery cavity (49) away from the insertion groove (48), and the switching structure is used to limit the sliding of the abutment block (50) in the recovery cavity (49).

8. The orbital grinding CNC machine tool according to claim 7, characterized in that: The switching structure includes: The limiting sliding cavity (54) is connected to the recovery cavity (49) at one end. The limiting plate (52) is slidably disposed in the limiting sliding cavity (54) and has an end portion extending into the recovery cavity (49) and fixed to the abutment block (50). The plug-in channel (53) is provided through the limiting plate (52). A limiting bolt (56) has one end inserted into the sealing block (38) and threadedly connected to the sealing block (38), and the other end of the limiting bolt (56) extends to the outside of the sealing block (38). The end of the limiting bolt (56) inserted into the sealing block (38) can extend into the insertion channel (53). The elastic element (55) is arranged at one end of the limiting plate (52) away from the abutting block (50), and the elastic element (55) is respectively fixed to the inner wall of the limiting sliding cavity (54) and the limiting plate (52).

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