Splicing type numerical control machining tool with fine adjustment function

Abstract

The invention relates to the field of machine tools, and discloses a splicing type numerical control machining tool with a fine adjustment function, which comprises a base and a plurality of groups of machine tool single bodies mounted on the base, and a butt joint mechanism is arranged between every two adjacent groups of machine tool single bodies; the butt-joint mechanism comprises a hydraulic cylinder, a first butt-joint component and a second butt-joint component, the first butt-joint component and the second butt-joint component are arranged on the two adjacent machine tool single bodies correspondingly and located on the sides, opposite to the butt-joint holes, of the two adjacent machine tool single bodies correspondingly, and the hydraulic cylinder and the first butt-joint component are arranged on the same machine tool single body. Butt joint holes are formed in the machine tool single bodies, and at the beginning, the butt joint holes in the two adjacent machine tool single bodies are coaxially formed; according to the scheme, the splicing type structural design is adopted, the machine tool can be conveniently and rapidly assembled and disassembled, the design, assembly and debugging period of the machine tool is remarkably shortened, meanwhile, the position deviation between the machine tool single bodies can be self-adapted, automatic correction is conducted, and the precision is improved.

Description

Technical Field

[0001] The invention relates to the field of machine tools, and in particular to a spliced ​​CNC machining machine tool with a fine-tuning function. Background Art

[0002] CNC machine tools are common mechanical equipment in mechanical processing. Due to the length of the CNC machine tools themselves, the length of the workpiece that can be processed by the CNC machine tools is limited to a maximum value. Therefore, if you encounter a large workpiece, you need a corresponding large CNC machine tool to process it. The factory needs to purchase the corresponding machine tool production line, which is too costly. In addition, in the prior art, large machine tools cannot be formed in one piece. Therefore, it is generally necessary to use a splicing process to assemble several modules into a completed CNC machine tool. Based on this, the following concept is proposed in the prior art: multiple machine tool units can be spliced ​​in series into a large machine tool to perform CNC processing on large workpieces; refer to the attached Figure 1 With attached Figure 2 The existing technology displayed is to splice two machine tool units into one, but this splicing and assembly method has some shortcomings. For example, in general, multiple machine tool units are used to process workpieces separately. When encountering large workpieces, they will be assembled and spliced ​​into a large machine tool to realize the processing of large workpieces. During assembly and splicing, the alignment accuracy between the machine tool units is one of the important factors affecting the processing quality of large workpieces. In the existing technology, alignment is generally achieved by driving the machine tool units to move and continuously adjust them, and then fixed connection is achieved through fasteners such as bolts. This method is not only complicated and difficult to align and adjust, but also the accuracy of the final alignment result is limited by the accuracy of the alignment operation and there is a certain error, which needs to be improved.

[0003] Based on the above, the present invention proposes a splicing type CNC machining machine with fine-tuning function. During the process of assembling into a large machine tool, it can automatically adjust itself according to the position deviation between two adjacent machine tool units, so that the two adjacent machine tool units can be automatically aligned with high alignment accuracy. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides a splicing type CNC machining machine tool with a fine-tuning function.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A spliced ​​CNC machining machine with a fine-tuning function, comprising a base and a plurality of machine tool monomers mounted on the base and arranged side by side, wherein the machine tool monomers can move along the length direction of the base, and a docking mechanism is provided between two adjacent machine tool monomers; The docking mechanism includes a hydraulic cylinder and a first docking component and a second docking component respectively arranged on two adjacent groups of machine tool monomers. The first docking component and the second docking component are respectively located on the opposite sides of the docking holes on the two adjacent groups of machine tool monomers. The hydraulic cylinder and the first docking component are arranged on the same machine tool monomer, and the machine tool monomer is provided with a docking hole. Initially, the docking holes on the two adjacent groups of machine tool monomers are coaxially arranged.

[0007] Furthermore, a slide rail is arranged on the base along the length direction, the machine tool unit is slidably connected with the slide rail, and a driving component for driving the machine tool unit to move on the slide rail is arranged between the machine tool unit and the base.

[0008] Furthermore, the first docking component includes a first fixed seat arranged on the machine tool body, the first fixed seat is provided with a first convex shaft in the shape of a hollow shaft and coaxial with the docking hole, the hole wall of the first convex shaft is in the shape of a truncated cone outer circular surface and the end with the smallest diameter is close to the docking hole; A first slide is slidably installed in the first fixed seat along the axial centerline direction of the docking hole, a spring is provided on the side of the first slide facing the docking hole, the first slide is in a rectangular shape with a hollow interior, four inner walls of the first slide are respectively provided with a first connecting member, a first guide rail is provided at the end of the first connecting member, a guiding direction of the first guide rail is parallel to the length direction of the inner wall corresponding to the first slide, a first suspension bracket is provided between the four first guide rails, the first suspension bracket is in a rectangular frame shape, and the four outer walls are respectively slidably connected with the four first guide rails, and the first connecting member is a telescopic rod structure.

[0009] Furthermore, the first connecting member includes a sliding sleeve vertically arranged on the inner wall of the first sliding seat and a guide rod sleeved in the sliding sleeve and connected to the outer wall of the first suspension bracket, and the outer part of the sliding sleeve is sleeved with a spring 2 located between the first sliding seat and the first suspension bracket.

[0010] Furthermore, the first suspension bracket is located on the side of the first convex shaft away from the docking hole, and a second convex shaft which is coaxial with the docking hole and in the shape of a hollow shaft is provided on the first suspension bracket. The outer cylindrical surface of the second convex shaft is set to be in the shape of a truncated cone outer cylindrical surface and when the first suspension bracket moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the second convex shaft can fit with the hole wall of the first convex shaft.

[0011] Furthermore, the hydraulic cylinder is located on the side of the first docking component away from the docking hole and is coaxial with the docking hole. The hydraulic cylinder is connected to the first suspension bracket through the bracket body. A connecting seat is provided at the output end of the hydraulic cylinder. A docking shaft is provided on the connecting seat in a ball joint. Initially, the end of the docking shaft passes through the second convex shaft and the first convex shaft. A rubber ring is coaxially provided on the hole wall of the second convex shaft and the rubber ring is coaxially sleeved on the outside of the docking shaft.

[0012] Furthermore, the second docking component includes a second fixed seat arranged on the machine tool body, and a third convex shaft in the shape of a hollow shaft and coaxial with the docking hole is arranged on the second fixed seat, and the hole wall of the third convex shaft is in the shape of a truncated cone outer circular surface and the end with the smallest diameter is close to the docking hole; A second slide is slidably installed in the second fixed seat along the axis direction of the docking hole, a spring three is arranged on the side of the second slide facing the docking hole, the second slide is in a rectangular shape with a hollow interior, four inner walls of the second slide are respectively provided with a second connecting member, a second guide rail is arranged at the end of the second connecting member, the guiding direction of the second guide rail is parallel to the length direction of the inner wall corresponding to the second slide, a second suspension bracket is arranged between the four second guide rails, the second suspension bracket is in a rectangular frame shape, and the four outer walls are respectively slidably connected with the four second guide rails, and the second connecting member is a telescopic rod structure; The second suspension bracket is located on the side of the third cam away from the docking hole, and a fourth cam is provided on the second suspension bracket, which is coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the fourth cam is set to be in the shape of a truncated cone outer cylindrical surface, and when the second suspension bracket moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the fourth cam can fit with the hole wall of the third cam.

[0013] Further, a third slide is slidably installed in the second suspension bracket along the axis direction of the docking hole, a spring four is arranged on the side of the third slide facing the docking hole, the third slide is in a rectangular shape with a hollow interior, a third connecting member is arranged on each of the four inner walls of the third slide, an arc block is arranged at the end of the third connecting member, the third connecting member is in a telescopic rod structure, and the telescopic direction is perpendicular to the corresponding inner wall of the third slide; Initially, two adjacent arc blocks fit together, and the four arc blocks form a suspension shaft. The suspension shaft is in the shape of a hollow shaft coaxial with the docking hole. The outer cylindrical surface of the suspension shaft is set to be a truncated cone outer cylindrical surface shape. The hole wall of the fourth convex shaft is set to be a truncated cone outer cylindrical surface shape, and the end with a small diameter is close to the docking hole. When the third slide seat moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the suspension shaft can fit with the hole wall of the fourth convex shaft. A step is arranged on the inner side of the end of the suspension shaft close to the docking hole, and the inner diameter of the step is smaller than the inner diameter of the suspension shaft.

[0014] Furthermore, the docking shaft includes a main shaft section that is ball-hinged with the connecting seat, the end of the main shaft section is coaxially connected to the connecting section one, the end of the connecting section one is coaxially connected to the clamping shaft section, the diameter of the main shaft section is larger than the diameter of the clamping shaft section, the diameter of the connecting section one is equal to the initial inner diameter of the step set on the suspension shaft, the main shaft section can pass through the first cam, the second cam, the third cam and the fourth cam, and the side edges of the end of the main shaft section and the end of the clamping shaft section are chamfered.

[0015] Further, a clamping groove is provided on one side of the arc block away from the third convex shaft, a clamping bracket is slidably installed on one side of the second fixing seat away from the docking hole along the axial centerline direction of the docking hole, a spring five is provided between the clamping bracket and the second fixing seat, the elastic force of the spring five drives the clamping bracket away from the docking hole, and a clamping pin is extended on one side of the clamping bracket toward the docking hole, and initially, the clamping pin contacts the side of the arc block provided with the clamping groove and the spring five is compressed; A deflection rod is hingedly provided on one side of the second fixing seat away from the docking hole, and a magnet is provided on the side of the clamping bracket facing the deflection rod. The deflection rod is made of iron. Initially, one end of the deflection rod away from the axis of the docking hole is magnetically attracted by the magnet; The end of the clamping shaft section of the docking shaft is coaxially connected to the connecting section 2, and the end of the connecting section 2 is coaxially provided with an unlocking section. The unlocking section is in the shape of a truncated cone and the end with the largest diameter is connected to the connecting section 2. The outer diameter of the connecting section 2 and the maximum outer diameter of the unlocking section are both smaller than the initial inner diameter of the step set on the suspension shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This solution adopts a splicing structure design, which can conveniently and quickly assemble and disassemble the machine tool, significantly reduce the design, assembly and commissioning cycle of the machine tool, improve the precision and efficiency of splicing assembly, effectively reduce production costs, thereby improving customer satisfaction and market competitiveness. On this basis: Referring to the alignment and splicing process between two adjacent sets of machine tool monomers in the specific implementation, it can be known that the cooperation between the hydraulic cylinder and the second docking member can make the docking axis coaxial with the docking hole on the machine tool monomer provided with the second docking member, and the cooperation between the hydraulic cylinder and the first docking member can make the hydraulic cylinder coaxial with the docking hole on the machine tool monomer provided with the first docking member; Furthermore, after the two sets of machine tool monomers are attached, the axis lines of the docking holes on the two sets of machine tool monomers are parallel to each other, so the docking axis and the hydraulic cylinder are parallel to each other; Since the docking shaft and the hydraulic cylinder are in a ball-jointed relationship, the axis line of the docking shaft and the axis line of the hydraulic cylinder are in a parallel and overlapping relationship, that is, the axis lines of the docking holes on the two sets of machine tool units overlap. That is, this solution can adapt to the position deviation between two adjacent machine tool units during the splicing and movement of the machine tool units, and automatically drive the machine tool units to fine-tune, correct the position deviation, and make the alignment of the machine tool units more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 For the prior art Figure 1 ; Figure 2 For the prior art Figure 2 ; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 It is a structural schematic diagram of the docking mechanism; Figure 5 Cross-section view of the docking mechanism Figure 1 ; Figure 6 Cross-section view of the docking mechanism Figure 2 ; Figure 7 Cross-section view of the docking mechanism Figure 3 ; Figure 8 is a cross-sectional view of a first docking member; Fig. 9 is a cross-sectional view of a second docking member; Fig.10 It is a cross-sectional view of the limit assembly and the suspension shaft; Fig.11 Schematic diagram of the docking shaft.

[0018] The reference numerals in the accompanying drawings are: 100, base; 101, machine tool unit; 102, slide rail; 200, docking mechanism; 201, first docking member; 202, second docking member; 203, hydraulic cylinder; 2031, connecting seat; 2032, docking shaft; 2033, main shaft section; 2034, connecting section 1; 2035, clamping shaft section; 2036, connecting section 2; 2037, unlocking section; 204, first fixed seat; 205, first convex shaft; 206, first slide seat; 207, spring 1; 208, first connecting member; 209, first guide Rail; 210, first suspension bracket; 211, second convex shaft; 212, rubber ring; 213, second fixed seat; 214, third convex shaft; 215, second slide seat; 216, spring three; 217, second connecting piece; 218, second guide rail; 219, second suspension bracket; 220, fourth convex shaft; 221, third slide seat; 222, spring four; 223, suspension shaft; 2231, slot; 224, third connecting piece; 225, clamping bracket; 226, spring five; 227, deflection rod; 228, magnet. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] Reference Figure 3-Figure 11A spliced ​​CNC machining machine with fine-tuning function includes a base 100 and a plurality of machine tool units 101 mounted on the base 100 and arranged side by side. Furthermore, a slide rail 102 is provided on the base 100 along the length direction. The machine tool units 101 and the slide rail 102 form a sliding connection. A driving component is provided between the machine tool units 101 and the base 100 for driving the machine tool units 101 to move on the slide rail 102. The driving component can adopt the existing hydraulic driving technology or the existing screw linear motion technology or the existing hub motor technology, etc., which will not be elaborated.

[0021] Since the machine tool monomer 101 will vibrate when processing a workpiece, in the process of splicing multiple groups of machine tool monomers 101 into a large machine tool, it is very easy to have a position deviation between two adjacent groups of machine tool monomers 101, and the position deviation needs to be corrected. Therefore, in this solution, a docking mechanism 200 is arranged between the two adjacent groups of machine tool monomers 101. The docking mechanism 200 is used to adapt to the position deviation between the two adjacent groups of machine tool monomers 101 and perform corresponding corrections to make the docking of the two adjacent groups of machine tool monomers 101 more accurate. After the docking is completed, the machine tool monomer 101 is further reinforced by existing fastener technology, such as bolts.

[0022] Reference Figure 4-Figure 7 The docking mechanism 200 includes a hydraulic cylinder 203 and a first docking component 201 and a second docking component 202 respectively arranged on two adjacent groups of machine tool monomers 101. The hydraulic cylinder 203 and the first docking component 201 are arranged on the same machine tool monomer 101. In addition, a docking hole is also arranged on the machine tool monomer 101. Before being put into use, the two adjacent groups of machine tool monomers 101 are accurately docked through the docking mechanism 200, and the two adjacent docking holes are coaxial. Afterwards, the two adjacent groups of machine tool monomers 101 are disassembled and put into use separately. Therefore, when they need to be assembled into a large machine tool again, the two adjacent docking holes are still coaxial, but there is a deviation in the accuracy of the coaxiality, which needs to be corrected and overcome.

[0023] The first docking member 201 and the second docking member 202 are respectively located on opposite sides of two adjacent docking holes.

[0024] 1. First docking member 201 and hydraulic cylinder 203: Reference Figure 8 The first docking component 201 includes a first fixed seat 204 arranged on the machine tool body 101, and a first convex shaft 205 in the shape of a hollow shaft and coaxial with the docking hole is arranged on the first fixed seat 204. The hole wall of the first convex shaft 205 is in the shape of a truncated cone outer circular surface and the end with the smallest diameter is close to the docking hole.

[0025] A first slide seat 206 is slidably mounted in the first fixed seat 204 along the axis direction of the docking hole, and a spring 207 is provided on one side of the first slide seat 206 facing the docking hole.

[0026] The first slide 206 is in the shape of a rectangle with a hollow interior. The four inner walls of the first slide 206 are each provided with a first connecting member 208. A first guide rail 209 is provided at the end of the first connecting member 208. The guiding direction of the first guide rail 209 is parallel to the length direction of the corresponding inner wall of the first slide 206. A first suspension bracket 210 is provided between the four first guide rails 209. The first suspension bracket 210 is in the shape of a rectangular frame and the four outer walls are respectively slidably connected to the four first guide rails 209. Since the first connecting member 208 is a telescopic rod structure, the first suspension bracket 210 can move arbitrarily in the plane coordinate system. Furthermore, the first connecting member 208 includes a sliding sleeve vertically arranged on the inner wall of the first slide 206 and a guide rod sleeved in the sliding sleeve and connected to the outer wall of the first suspension bracket 210. The outer part of the sliding sleeve is sleeved with a spring 2 located between the first slide 206 and the first suspension bracket 210.

[0027] The first suspension bracket 210 is located on the side of the first convex shaft 205 away from the docking hole. The first suspension bracket 210 is provided with a second convex shaft 211 which is coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the second convex shaft 211 is set to be in the shape of a truncated cone outer cylindrical surface. When the first suspension bracket 210 moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the second convex shaft 211 can fit with the hole wall of the first convex shaft 205.

[0028] Reference Figure 4 and Figure 8 The hydraulic cylinder 203 is located on a side of the first docking component 201 away from the docking hole and the hydraulic cylinder 203 is coaxial with the docking hole. The hydraulic cylinder 203 is connected to the first suspension bracket 210 through the bracket body.

[0029] A connecting seat 2031 is provided at the output end of the hydraulic cylinder 203, and a docking shaft 2032 is provided on the connecting seat 2031 in a ball-hinged manner. Initially, the end of the docking shaft 2032 passes through the second convex shaft 211 and the first convex shaft 205, and a rubber ring 212 is coaxially provided on the hole wall of the second convex shaft 211, and the rubber ring 212 is coaxially sleeved on the outside of the docking shaft 2032. Therefore, initially, under the support of the rubber ring 212, the docking shaft 2032, the hydraulic cylinder 203, the second convex shaft 211, the first convex shaft 205 and the docking hole are coaxial.

[0030] 2. Second docking member 202 and hydraulic cylinder 203: Reference Fig. 9 and Fig.10The second docking component 202 includes a second fixed seat 213 arranged on the machine tool body 101, and a third protruding shaft 214 in the shape of a hollow shaft and coaxial with the docking hole is arranged on the second fixed seat 213. The hole wall of the third protruding shaft 214 is in the shape of a truncated cone outer circular surface and the end with the smallest diameter is close to the docking hole.

[0031] A second slide seat 215 is slidably mounted in the second fixed seat 213 along the axis direction of the docking hole, and a spring 3 216 is provided on one side of the second slide seat 215 facing the docking hole.

[0032] The second slide 215 is in the shape of a hollow rectangle. Each of the four inner walls of the second slide 215 is provided with a second connecting member 217. A second guide rail 218 is provided at the end of the second connecting member 217. The guiding direction of the second guide rail 218 is parallel to the length direction of the corresponding inner wall of the second slide 215. A second suspension bracket 219 is provided between the four second guide rails 218. The second suspension bracket 219 is in the shape of a rectangular frame and the four outer walls are respectively slidably connected to the four second guide rails 218. Since the second connecting member 217 is a telescopic rod structure, the second suspension bracket 219 can move arbitrarily in the plane coordinate system. Furthermore, the structure of the second connecting member 217 is consistent with that of the first connecting member 208, and will not be repeated here.

[0033] The second suspension bracket 219 is located on the side of the third cam 214 away from the docking hole. The second suspension bracket 219 is provided with a fourth cam 220 which is coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the fourth cam 220 is arranged in the shape of a truncated cone outer cylindrical surface. When the second suspension bracket 219 moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the fourth cam 220 can fit with the hole wall of the third cam 214.

[0034] A third slide seat 221 is slidably mounted in the second suspension bracket 219 along the axis direction of the docking hole, and a spring 222 is disposed on one side of the third slide seat 221 facing the docking hole.

[0035] The third slide 221 is in the shape of a hollow rectangle. The four inner walls of the third slide 221 are each provided with a third connecting member 224. An arc block is provided at the end of the third connecting member 224. The third connecting member 224 is in the form of a telescopic rod structure and the telescopic direction is perpendicular to the corresponding inner wall of the third slide 221. The structure of the third connecting member 224 is consistent with that of the first connecting member 208, except that the size is different and the spring 2 is arranged inside the sliding sleeve and the guide rod, which will not be elaborated.

[0036] Initially, two adjacent arc blocks fit together, and the four arc blocks form a suspension shaft 223. The suspension shaft 223 is in the shape of a hollow shaft coaxial with the docking hole. The outer cylindrical surface of the suspension shaft 223 is set to be a truncated cone outer cylindrical surface shape. The hole wall of the fourth convex shaft 220 is set to be a truncated cone outer cylindrical surface shape and the end with a small diameter is close to the docking hole. During the movement of the third slide seat 221 along the axial centerline direction of the docking hole, the outer cylindrical surface of the suspension shaft 223 can fit with the hole wall of the fourth convex shaft 220.

[0037] A step is provided on the inner side of the end of the suspension shaft 223 close to the docking hole, and the inner diameter of the step is smaller than the inner diameter of the suspension shaft 223 .

[0038] Reference Fig.11 The docking shaft 2032 includes a main shaft section 2033 ball-jointed with the connecting seat 2031, the end of the main shaft section 2033 is coaxially connected with a connecting section 2034, and the end of the connecting section 2034 is coaxially connected with a clamping shaft section 2035, wherein the diameter of the main shaft section 2033 is greater than the diameter of the clamping shaft section 2035, which is greater than the diameter of the connecting section 2034, and the diameter of the connecting section 2034 is equal to the initial inner diameter of the step set on the suspension shaft 223, and the main shaft section 2033 can pass through the first protruding shaft 205, the second protruding shaft 211, the third protruding shaft 214 and the fourth protruding shaft 220.

[0039] The side edges at the end of the main shaft section 2033 and the side edges at the end of the clamping shaft section 2035 are rounded and have arc surfaces.

[0040] The alignment and splicing process between two adjacent sets of machine tool monomers 101 is specifically performed as follows: It should be noted that, although there is a position deviation between two adjacent machine tool units 101, the position deviation is relatively small. First, the machine tool unit 101 is moved so that the end of the clamping shaft segment 2035 passes through the third convex shaft 214 and the fourth convex shaft 220. After that, the arc surface of the clamping shaft segment 2035 pushes the arc blocks to open away from each other, so that the clamping shaft segment 2035 passes through the step and is located in the suspension shaft 223. At this time: if there is no position deviation, the arc blocks move closer to each other, so that the connecting section 1 2034 of the suspension shaft 223 fits with the step set on the suspension shaft 223. If there is a position deviation, some arc blocks can complete the reset, and the remaining arc blocks are almost reset. However, in either case, the clamping shaft segment 2035 and the step are connected. Then, the hydraulic cylinder 203 is activated to pull back the docking shaft 2032. During this process: a. The clamping shaft section 2035 cooperates with the step to move with the suspension shaft 223, and the suspension shaft 223 moves with the third slide 221, and the third slide 221 moves with the second suspension bracket 219 and the fourth protruding shaft 220, so that the outer cylindrical surface of the suspension shaft 223 contacts the hole wall of the fourth protruding shaft 220, and the outer cylindrical surface of the fourth protruding shaft 220 contacts the hole wall of the third protruding shaft 214. When in contact, the third protruding shaft 214 makes the fourth protruding shaft 220 fit itself, and the fourth protruding shaft 220 makes the suspension shaft 223 fit itself, so that the docking shaft 2032 is coaxial with the docking hole on the machine tool monomer 101 provided with the second docking member 202; b. After the two adjacent sets of machine tool monomers 101 are fitted, the hydraulic cylinder 203 continues to start. During this process, the hydraulic cylinder 203 moves close to the first fixed seat 204, and the hydraulic cylinder 203 moves with the bracket body and the first suspension bracket 210, so that the outer cylindrical surface of the second convex shaft 211 contacts the hole wall of the first convex shaft 205. When in contact, the first convex shaft 205 makes the second convex shaft 211 fit itself, so that the hydraulic cylinder 203 is coaxial with the first convex shaft 205, that is, the hydraulic cylinder 203 is coaxial with the docking hole on the machine tool monomer 101 provided with the first docking member 201; Combining a and b, since after the two sets of machine tool monomers 101 are attached, the axis lines of the docking holes on the two sets of machine tool monomers 101 are parallel to each other, the docking shaft 2032 and the hydraulic cylinder 203 are parallel to each other, and since the docking shaft 2032 and the hydraulic cylinder 203 are in a ball-jointed relationship, the axis line of the docking shaft 2032 and the axis line of the hydraulic cylinder 203 are in a coincident relationship in a parallel relationship, that is, the axis lines of the docking holes on the two sets of machine tool monomers 101 coincide, that is, the positional deviation between the two sets of machine tool monomers 101 is corrected and the two are accurately aligned; Finally, the two sets of machine tool units 101 can be connected and reinforced by using existing fastener technology.

[0041] 3. Loosening after splicing: Reference Fig.10 A clamping groove 2231 is provided on the side of the arc block away from the third protruding shaft 214 .

[0042] A clamping bracket 225 is slidably mounted on one side of the second fixing seat 213 away from the docking hole along the axial direction of the docking hole. A spring 5 226 is arranged between the clamping bracket 225 and the second fixing seat 213. The elastic force of the spring 5 226 drives the clamping bracket 225 away from the docking hole.

[0043] A latch pin is extended from one side of the latch bracket 225 toward the docking hole. Initially, the latch pin contacts the side of the arc block where the latch slot 2231 is provided and the spring five 226 is compressed.

[0044] A deflection rod 227 is hingedly provided on the side of the second fixing seat 213 away from the docking hole, and a magnet 228 is provided on the side of the clamping bracket 225 facing the deflection rod 227. The deflection rod 227 is made of iron. Initially, the end of the deflection rod 227 away from the axis line of the docking hole is magnetically attracted by the magnet 228.

[0045] Reference Fig.11 The end of the clamping shaft section 2035 of the docking shaft 2032 is coaxially connected with the second connecting section 2036, and the end of the second connecting section 2036 is coaxially provided with an unlocking section 2037. The unlocking section 2037 is in the shape of a truncated cone and the end with the largest diameter is connected to the second connecting section 2036.

[0046] The outer diameter of the second connecting section 2036 and the maximum outer diameter of the unlocking section 2037 are both smaller than the initial inner diameter of the step disposed on the suspension shaft 223 .

[0047] The clamping bracket 225, the clamping pin, the spring five 226, the magnet 228 and the deflection rod 227 form a limit assembly, and the limit assembly is provided with four corresponding to the number of arc blocks.

[0048] The disassembly process of the machine tool unit 101 after splicing is specifically as follows: During the assembly process of the machine tool unit 101, the unlocking section 2037 will come into contact with the deflection rod 227, causing it to deflect. After the unlocking section 2037 passes over the deflection rod 227, the magnetic attraction of the magnet 228 resets the deflection rod 227, that is, after the assembly is completed, the unlocking section 2037 is located on the side of the deflection rod 227 away from the docking hole. After the large workpiece is processed, when the large machine tool needs to be disassembled, the hydraulic cylinder 203 pushes the docking shaft 2032 outward. During this process, the main shaft section 2033 of the docking shaft 2032 pushes the arc blocks away from each other. When the step set on the suspension shaft 223 contacts the main shaft section 2033, the slot 2231 is aligned with the bayonet pin, and the spring 5 226 releases its elastic force, so that the bayonet pin extends into the slot 2231. Afterwards, the hydraulic cylinder 203 pulls back the docking shaft 2032. During this process, the clamping shaft section 2035 of the docking shaft 2032 can smoothly pass through the suspension shaft 223. Afterwards, the unlocking section 2037 will drive the deflection rod 227 to deflect. This deflection action can push the clamping bracket 225 to move away from the docking hole, so that the clamping pin leaves the clamping slot 2231 and the suspension shaft 223 is reset. At this time, the docking between the first docking component 201 and the second docking component 202 is also loosened, and the two sets of machine tool monomers 101 can move away from each other.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A spliced ​​CNC machining machine tool with a fine-tuning function, comprising a base (100) and a plurality of machine tool units (101) mounted on the base (100) and arranged side by side, characterized in that: The machine tool units (101) are capable of moving along the length direction of the base (100), and a docking mechanism (200) is provided between two adjacent groups of machine tool units (101); The docking mechanism (200) comprises a hydraulic cylinder (203) and a first docking component (201) and a second docking component (202) respectively arranged on two adjacent groups of machine tool monomers (101); the first docking component (201) and the second docking component (202) are respectively located on opposite sides of docking holes on the two adjacent groups of machine tool monomers (101); the hydraulic cylinder (203) and the first docking component (201) are arranged on the same machine tool monomer (101); a docking hole is arranged on the machine tool monomer (101); and initially, the docking holes on the two adjacent groups of machine tool monomers (101) are coaxially arranged.

2. The splicing type CNC machining machine tool with fine-tuning function according to claim 1, characterized in that: A slide rail (102) is provided on the base (100) along the length direction, the machine tool unit (101) and the slide rail (102) are slidably connected, and a driving component for driving the machine tool unit (101) to move on the slide rail (102) is provided between the machine tool unit (101) and the base (100).

3. The splicing type CNC machining machine tool with fine-tuning function according to claim 1, characterized in that: The first docking component (201) comprises a first fixing seat (204) arranged on the machine tool unit (101); a first convex shaft (205) in the shape of a hollow shaft and coaxial with the docking hole is arranged on the first fixing seat (204); the hole wall of the first convex shaft (205) is in the shape of a truncated cone outer circular surface, and the end with the smallest diameter is close to the docking hole; A first slide seat (206) is slidably mounted in the first fixed seat (204) along the axis direction of the docking hole. A spring (207) is arranged on the side of the first slide seat (206) facing the docking hole. The first slide seat (206) is in a rectangular shape with a hollow interior. Each of the four inner walls of the first slide seat (206) is provided with a first connecting member (208). A first guide rail (209) is arranged at the end of the first connecting member (208). The guiding direction of the first guide rail (209) is parallel to the length direction of the corresponding inner wall of the first slide seat (206). A first suspension bracket (210) is arranged between the four first guide rails (209). The first suspension bracket (210) is in a rectangular frame shape and the four outer walls are respectively slidably connected to the four first guide rails (209). The first connecting member (208) is in a telescopic rod structure.

4. The splicing type CNC machining machine tool with fine adjustment function according to claim 3, characterized in that: The first connecting member (208) comprises a sliding sleeve vertically arranged on the inner wall of the first sliding seat (206) and a guide rod sleeved in the sliding sleeve and connected to the outer wall of the first suspension bracket (210), and the outer part of the sliding sleeve is sleeved with a spring 2 located between the first sliding seat (206) and the first suspension bracket (210).

5. The splicing type CNC machining machine tool with fine adjustment function according to claim 3, characterized in that: The first suspension bracket (210) is located on a side of the first convex shaft (205) away from the docking hole. The first suspension bracket (210) is provided with a second convex shaft (211) coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the second convex shaft (211) is arranged in the shape of a truncated cone outer cylindrical surface. When the first suspension bracket (210) moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the second convex shaft (211) can fit with the hole wall of the first convex shaft (205).

6. The splicing type CNC machining machine tool with fine adjustment function according to claim 5, characterized in that: The hydraulic cylinder (203) is located on a side of the first docking component (201) away from the docking hole and the hydraulic cylinder (203) is coaxial with the docking hole. The hydraulic cylinder (203) is connected to the first suspension bracket (210) via a bracket body. A connecting seat (2031) is provided at the output end of the hydraulic cylinder (203). A docking shaft (2032) is provided on the connecting seat (2031) in a ball-jointed manner. Initially, the end of the docking shaft (2032) passes through the second convex shaft (211) and the first convex shaft (205). A rubber ring (212) is coaxially provided on the hole wall of the second convex shaft (211), and the rubber ring (212) is coaxially sleeved on the outside of the docking shaft (2032).

7. The splicing type CNC machining machine tool with fine adjustment function according to claim 6, characterized in that: The second docking component (202) comprises a second fixing seat (213) arranged on the machine tool unit (101); a third convex shaft (214) in the shape of a hollow shaft and coaxial with the docking hole is arranged on the second fixing seat (213); the hole wall of the third convex shaft (214) is in the shape of a truncated cone outer circular surface, and the end with the smallest diameter is close to the docking hole; A second slide seat (215) is slidably installed in the second fixed seat (213) along the axial centerline direction of the docking hole, a spring three (216) is arranged on the side of the second slide seat (215) facing the docking hole, the second slide seat (215) is in a rectangular shape with a hollow interior, four inner walls of the second slide seat (215) are respectively provided with a second connecting member (217), a second guide rail (218) is arranged at the end of the second connecting member (217), the guiding direction of the second guide rail (218) is parallel to the length direction of the corresponding inner wall of the second slide seat (215), a second suspension bracket (219) is arranged between the four second guide rails (218), the second suspension bracket (219) is in a rectangular frame shape, and the four outer walls are respectively slidably connected to the four second guide rails (218), and the second connecting member (217) is a telescopic rod structure; The second suspension bracket (219) is located on a side of the third convex shaft (214) away from the docking hole. A fourth convex shaft (220) coaxial with the docking hole and in the shape of a hollow shaft is provided on the second suspension bracket (219). The outer cylindrical surface of the fourth convex shaft (220) is arranged in the shape of a truncated cone outer cylindrical surface. When the second suspension bracket (219) moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the fourth convex shaft (220) can fit with the hole wall of the third convex shaft (214).

8. The splicing type CNC machining machine tool with fine adjustment function according to claim 7, characterized in that: A third slide seat (221) is slidably mounted in the second suspension bracket (219) along the axis direction of the docking hole, a spring four (222) is arranged on the side of the third slide seat (221) facing the docking hole, the third slide seat (221) is in a rectangular shape with a hollow interior, four inner walls of the third slide seat (221) are respectively provided with a third connecting member (224), an arc block is arranged at the end of the third connecting member (224), and the third connecting member (224) is in a telescopic rod structure, and the telescopic direction is perpendicular to the corresponding inner wall of the third slide seat (221); Initially, two adjacent arc blocks fit together, and the four arc blocks form a suspension shaft (223). The suspension shaft (223) is in the shape of a hollow shaft coaxial with the docking hole. The outer cylindrical surface of the suspension shaft (223) is set in the shape of a truncated cone outer cylindrical surface. The hole wall of the fourth convex shaft (220) is set in the shape of a truncated cone outer cylindrical surface, and the end with a smaller diameter is close to the docking hole. When the third slide seat (221) moves along the axial centerline direction of the docking hole, the outer cylindrical surface of the suspension shaft (223) can fit with the hole wall of the fourth convex shaft (220); A step is provided on the inner side of the end of the suspension shaft (223) close to the docking hole, and the inner diameter of the step is smaller than the inner diameter of the suspension shaft (223).

9. The splicing type CNC machining machine tool with fine adjustment function according to claim 8, characterized in that: The docking shaft (2032) comprises a main shaft section (2033) which is spherically hinged to the connecting seat (2031); the end of the main shaft section (2033) is coaxially connected to a connecting section 1 (2034); the end of the connecting section 1 (2034) is coaxially connected to a clamping shaft section (2035); the diameter of the main shaft section (2033) is greater than the diameter of the clamping shaft section (2035); the diameter of the connecting section 1 (2034) is equal to the initial inner diameter of a step provided on the suspension shaft (223); the main shaft section (2033) can pass through the first convex shaft (205), the second convex shaft (211), the third convex shaft (214) and the fourth convex shaft (220); and the side edges of the end of the main shaft section (2033) and the side edges of the end of the clamping shaft section (2035) are both rounded.

10. The splicing type CNC machining machine tool with fine adjustment function according to claim 9, characterized in that: A clamping groove (2231) is provided on a side of the arc block away from the third convex shaft (214); a clamping bracket (225) is slidably mounted on a side of the second fixing seat (213) away from the docking hole along the axial centerline direction of the docking hole; a fifth spring (226) is provided between the clamping bracket (225) and the second fixing seat (213); the elastic force of the fifth spring (226) drives the clamping bracket (225) away from the docking hole; a clamping pin extends from a side of the clamping bracket (225) toward the docking hole; initially, the clamping pin contacts the side of the arc block where the clamping groove (2231) is provided, and the fifth spring (226) is compressed; A deflection rod (227) is hingedly provided on one side of the second fixing seat (213) away from the docking hole, and a magnet (228) is provided on one side of the clamping bracket (225) facing the deflection rod (227). The deflection rod (227) is made of iron. Initially, one end of the deflection rod (227) away from the axis of the docking hole is magnetically attracted by the magnet (228); The end of the clamping shaft section (2035) of the docking shaft (2032) is coaxially connected to the second connecting section (2036), and the end of the second connecting section (2036) is coaxially provided with an unlocking section (2037). The unlocking section (2037) is in the shape of a truncated cone and the end with the largest diameter is connected to the second connecting section (2036). The outer diameter of the second connecting section (2036) and the maximum outer diameter of the unlocking section (2037) are both smaller than the initial inner diameter of the step provided on the suspension shaft (223).

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