A spliced ​​CNC machining machine with fine-tuning function

Abstract

The present invention relates to the field of machine tools, and discloses a spliced ​​CNC machining machine with a fine-tuning function, comprising a base and multiple groups of machine tool monomers installed on the base, a docking mechanism is arranged between two adjacent groups of machine tool monomers, the docking mechanism comprises a hydraulic cylinder and a first docking component and a second docking component respectively arranged on the 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; this scheme adopts a spliced ​​structural design, which can conveniently and quickly assemble and disassemble the machine tool, significantly reducing the design, assembly and debugging cycle of the machine tool, and at the same time can adapt to the position deviation between the machine tool monomers, automatically correct, and improve precision.

Description

Technical Field

[0001] The present 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 workpieces that can be processed by 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, since large machine tools cannot be formed in one piece in the existing technology, a splicing process is generally required to assemble several modules into a complete CNC machine tool. Based on this, the following concept is proposed in the existing technology: multiple machine tool units can be spliced ​​in series to form 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, under normal circumstances, 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 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 center with fine-tuning function. During the process of assembling into a large machine tool, it can automatically adjust itself 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 with a fine-tuning function.

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

[0006] A spliced ​​CNC machining center with a fine-tuning function comprises a base and a plurality of machine tool units mounted on the base and arranged side by side. The machine tool units are capable of moving along the length of the base, and a docking mechanism is provided between two adjacent machine tool units.

[0007] 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. 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.

[0008] Furthermore, a slide rail is provided on the base along the length direction, the machine tool unit and the slide rail form a sliding connection, and a driving component for driving the machine tool unit to move on the slide rail is provided between the machine tool unit and the base.

[0009] Furthermore, the first docking member includes a first fixing seat provided on the machine tool body, the first fixing seat is provided with a first protruding shaft in the shape of a hollow shaft and coaxial with the docking hole, the hole wall of the first protruding 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;

[0010] A first slide is installed in the first fixed seat in a sliding manner along the axial center line 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. A first connecting member is provided on each of the four inner walls of the first slide. A first guide rail is provided at the end of the first connecting member. The guiding direction of the first guide rail is parallel to the length direction of the corresponding inner wall of 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 to the four first guide rails. The first connecting member is a telescopic rod structure.

[0011] Furthermore, the first connecting member includes a sliding sleeve vertically arranged on the inner wall of the first slide and a guide rod mounted in the sliding sleeve and connected to the outer wall of the first suspension bracket. The outer portion of the sliding sleeve is mounted with a spring 2 located between the first slide and the first suspension bracket.

[0012] Furthermore, the first suspension bracket is located on the side of the first protruding shaft away from the docking hole, and a second protruding shaft is provided on the first suspension bracket, which is coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the second protruding shaft is set to 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 protruding shaft can fit with the hole wall of the first protruding shaft.

[0013] 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. The output end of the hydraulic cylinder is provided with a connecting seat, and the connecting seat is provided with a docking shaft in a ball hinge. Initially, the end of the docking shaft passes through the second convex shaft and the first convex shaft, and 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.

[0014] Furthermore, the second docking member includes a second fixed seat provided on the machine tool body, the second fixed seat is provided with a third protruding shaft in the shape of a hollow shaft and coaxial with the docking hole, the hole wall of the third protruding 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;

[0015] A second slide is slidably installed in the second fixed seat along the axial centerline direction of the docking hole, a spring three is provided on the side of the second slide facing the docking hole, the second slide is in the shape of a hollow rectangle, the four inner walls of the second slide are respectively provided with a second connecting member, a second guide rail is provided at the end of the second connecting member, the guiding direction of the second guide rail is parallel to the length direction of the corresponding inner wall of the second slide, a second suspension bracket is provided between the four second guide rails, the second suspension bracket is in the shape of a rectangular frame and the four outer walls are respectively slidably connected to the four second guide rails, and the second connecting member is a telescopic rod structure;

[0016] The second suspension bracket is located on the side of the third protrusion away from the docking hole. The second suspension bracket is provided with a fourth protrusion coaxial with the docking hole and in the shape of a hollow shaft. The outer cylindrical surface of the fourth protrusion is set to 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 protrusion can fit with the hole wall of the third protrusion.

[0017] Furthermore, a third slide is slidably mounted in the second suspension bracket along the axis of the docking hole. A spring four is provided 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 provided on each of the four inner walls of the third slide. An arc block is provided 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.

[0018] 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 in the shape of a truncated cone outer cylindrical surface. The hole wall of the fourth convex shaft is set to be 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 moves along the axial centerline of the docking hole, the outer cylindrical surface of the suspension shaft can fit together with the hole wall of the fourth convex shaft.

[0019] A step is provided on the inner side of the end portion 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.

[0020] 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 protrusion shaft, the second protrusion shaft, the third protrusion shaft and the fourth protrusion shaft, and the side edges of the end of the main shaft section and the side edges of the end of the clamping shaft section are chamfered.

[0021] Furthermore, a clamping groove is provided on a side of the arc block away from the third convex shaft, and a clamping bracket is slidably installed on a side of the second fixing seat away from the docking hole along the axis 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. A clamping pin extends from the clamping bracket toward the docking hole. Initially, the clamping pin contacts the side of the arc block provided with the clamping groove and the spring five is compressed.

[0022] A deflection rod is hingedly provided on the side of the second fixing seat facing 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, the end of the deflection rod facing away from the axis of the docking hole is magnetically attracted by the magnet;

[0023] 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.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This solution adopts a splicing structure design, which can facilitate and quickly assemble and disassemble the machine tool, significantly reducing the design, assembly and commissioning cycle of the machine tool, improving the precision and efficiency of splicing assembly, and effectively reducing production costs, thereby improving customer satisfaction and market competitiveness. On this basis:

[0026] With reference to the alignment and splicing process between two adjacent sets of machine tool units in the specific embodiment, it can be seen 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 unit 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 unit provided with the first docking member;

[0027] Furthermore, since the axis lines of the docking holes on the two sets of machine tool monomers are parallel to each other after the two sets of machine tool monomers are attached, the docking axis and the hydraulic cylinder are parallel to each other;

[0028] Since the docking shaft and the hydraulic cylinder are in a ball-hinged 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 coincide. 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 and correct the position deviation, so that the alignment of the machine tool units is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 For the illustration of the prior art Figure 1 ;

[0030] Figure 2 For the prior art Figure 2 ;

[0031] Figure 3 It is a structural schematic diagram of the present invention;

[0032] Figure 4 It is a structural diagram of the docking mechanism;

[0033] Figure 5 Cross-section of the docking mechanism Figure 1 ;

[0034] Figure 6 Cross-section of the docking mechanism Figure 2 ;

[0035] Figure 7 Cross-section of the docking mechanism Figure 3 ;

[0036] Figure 8 is a cross-sectional view of the first docking member;

[0037] Figure 9 is a cross-sectional view of the second docking member;

[0038] Figure 10 It is a cross-sectional view of the limit assembly and the suspension shaft;

[0039] Figure 11 Schematic diagram of the docking shaft.

[0040] The reference numerals in the accompanying drawings are:

[0041] 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. Spindle section; 2034. Connecting section 1; 2035. Clamping shaft section; 2036. Connecting section 2; 2037. Unlocking section; 204. First fixing seat; 205. First protruding shaft; 206. First slide seat; 207. Spring 1; 208. First connecting member; 209. First guide Rail; 210, first suspension bracket; 211, second protruding shaft; 212, rubber ring; 213, second fixed seat; 214, third protruding shaft; 215, second slide; 216, spring three; 217, second connecting member; 218, second guide rail; 219, second suspension bracket; 220, fourth protruding shaft; 221, third slide; 222, spring four; 223, suspension shaft; 2231, slot; 224, third connecting member; 225, snap-on bracket; 226, spring five; 227, deflection rod; 228, magnet. DETAILED DESCRIPTION

[0042] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0043] Reference Figure 3-Figure 11 A spliced ​​CNC machining center with a 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 assembly 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 assembly can adopt the existing hydraulic driving technology, the existing screw linear motion technology, the existing hub motor technology, etc., which will not be elaborated.

[0044] Since the machine tool monomer 101 will vibrate when processing the workpiece, in the process of splicing multiple groups of machine tool monomers 101 into a large machine tool, it is very easy for position deviations to occur between two adjacent groups of machine tool monomers 101, and the position deviations need to be corrected. Therefore, in this solution, a docking mechanism 200 is provided between the two adjacent groups of machine tool monomers 101. The docking mechanism 200 is used to adapt to the position deviations between the two adjacent groups of machine tool monomers 101 and perform corresponding corrections, so that the docking of the two adjacent groups of machine tool monomers 101 is more precise. After the docking is completed, the machine tool monomer 101 is further reinforced by existing fastener technology, such as bolts.

[0045] 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, docking holes are also provided on the machine tool monomer 101. Before being put into use, the two adjacent groups of machine tool monomers 101 are precisely 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.

[0046] The first docking member 201 and the second docking member 202 are respectively located on opposite sides of two adjacent docking holes.

[0047] 1. First docking member 201 and hydraulic cylinder 203:

[0048] Reference Figure 8The first docking component 201 includes a first fixed seat 204 arranged on the machine tool unit 101, and a first protruding shaft 205 in the shape of a hollow shaft and coaxial with the docking hole is provided on the first fixed seat 204. The hole wall of the first protruding 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.

[0049] A first slide 206 is slidably mounted in the first fixing seat 204 along the axis of the docking hole. A spring 207 is provided on the side of the first slide 206 facing the docking hole.

[0050] 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. The end of the first connecting member 208 is provided with a first guide rail 209. 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 within 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 arranged in the sliding sleeve and connected to the outer wall of the first suspension bracket 210. The outer side of the sliding sleeve is provided with a spring 2 located between the first slide 206 and the first suspension bracket 210.

[0051] The first suspension bracket 210 is located on the side of the first protruding shaft 205 away from the docking hole. The first suspension bracket 210 is provided with a second protruding shaft 211 which is coaxial with the docking hole and is in the shape of a hollow shaft. The outer circular surface of the second protruding shaft 211 is set to be in the shape of a truncated cone outer circular surface. When the first suspension bracket 210 moves along the axial centerline direction of the docking hole, the outer circular surface of the second protruding shaft 211 can fit into the hole wall of the first protruding shaft 205.

[0052] 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 is coaxial with the docking hole. The hydraulic cylinder 203 is connected to the first suspension bracket 210 through the bracket body.

[0053] The output end of the hydraulic cylinder 203 is provided with a connecting seat 2031, and a docking shaft 2032 is provided on the connecting seat 2031 in a ball hinge. Initially, the end of the docking shaft 2032 passes through the second protruding shaft 211 and the first protruding shaft 205. The hole wall of the second protruding shaft 211 is coaxially provided with a rubber ring 212, 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 protruding shaft 211, the first protruding shaft 205 and the docking hole are coaxial.

[0054] 2. Second docking member 202 and hydraulic cylinder 203:

[0055] Reference Figure 9 and Figure 10 The second docking component 202 includes a second fixed seat 213 arranged on the machine tool unit 101, and a third protruding shaft 214 in the shape of a hollow shaft and coaxial with the docking hole is provided 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.

[0056] A second slide 215 is slidably mounted in the second fixing seat 213 along the axis of the docking hole. A spring 216 is provided on a side of the second slide 215 facing the docking hole.

[0057] The second slide 215 is in the shape of a rectangle with a hollow interior. 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 within 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.

[0058] The second suspension bracket 219 is located on the side of the third protruding shaft 214 away from the docking hole. The second suspension bracket 219 is provided with a fourth protruding shaft 220 which is coaxial with the docking hole and in the shape of a hollow shaft. The outer circular surface of the fourth protruding shaft 220 is set to be in the shape of a truncated cone outer circular surface. When the second suspension bracket 219 moves along the axial centerline direction of the docking hole, the outer circular surface of the fourth protruding shaft 220 can fit into the hole wall of the third protruding shaft 214.

[0059] A third slide 221 is slidably mounted in the second suspension bracket 219 along the axis of the docking hole. A spring 222 is provided on the side of the third slide 221 facing the docking hole.

[0060] The third slide 221 is in the shape of a hollow rectangle. Each of the four inner walls of the third slide 221 is provided with a third connecting member 224. The end of the third connecting member 224 is provided with an arc block. The third connecting member 224 is 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 provided inside the sliding sleeve and the guide rod, which will not be repeated.

[0061] Initially, two adjacent arc blocks are fitted together, and the four arc blocks form a suspended shaft 223. The suspended shaft 223 is in the shape of a hollow shaft coaxial with the docking hole. The outer cylindrical surface of the suspended shaft 223 is set to be in the shape of a truncated cone outer cylindrical surface. The hole wall of the fourth convex shaft 220 is set to be in the shape of a truncated cone outer cylindrical surface and the end with a smaller diameter is close to the docking hole. During the movement of the third slide 221 along the axial centerline direction of the docking hole, the outer cylindrical surface of the suspended shaft 223 can fit together with the hole wall of the fourth convex shaft 220.

[0062] A step is provided on the inner side of the end portion 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 .

[0063] Reference Figure 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 to the connecting section 1 2034, and the end of the connecting section 1 2034 is coaxially connected to the clamping shaft section 2035, wherein the diameter of the main shaft section 2033 is larger than the diameter of the clamping shaft section 2035, which is larger than the diameter of the connecting section 1 2034, and the diameter of the connecting section 1 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.

[0064] 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 formed with arc surfaces.

[0065] The alignment and splicing process between two adjacent sets of machine tool units 101 is specifically as follows:

[0066] It should be noted that, although position deviation is very likely to exist between two adjacent machine tool units 101, the position deviation is relatively small.

[0067] First, the machine tool unit 101 is moved so that the end of the clamping shaft segment 2035 passes through the third protruding shaft 214 and the fourth protruding shaft 220. Then, 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 inside the suspension shaft 223. At this time, if there is no positional deviation, the arc blocks move closer to each other, so that the connecting segment 2034 of the suspension shaft 223 fits into the step provided on the suspension shaft 223. If there is a positional deviation, some arc blocks may be able to complete the reset, while the remaining arc blocks may be almost reset. However, in either case, the clamping shaft segment 2035 and the step are locked.

[0068] Then, the hydraulic cylinder 203 is activated to pull back the docking shaft 2032. During this process:

[0069] a. The clamping shaft section 2035 cooperates with the step to move with the suspension shaft 223, which in turn moves with the third slide 221. 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. During the contact, the third protruding shaft 214 makes the fourth protruding shaft 220 fit with itself, and the fourth protruding shaft 220 makes the suspension shaft 223 fit with itself. Therefore, the docking shaft 2032 is coaxial with the docking hole on the machine tool unit 101 provided with the second docking member 202;

[0070] b. After the two adjacent sets of machine tool units 101 are aligned, the hydraulic cylinder 203 continues to be activated. During this process, the hydraulic cylinder 203 moves closer 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 surface of the second protruding shaft 211 contacts the hole wall of the first protruding shaft 205. During this contact, the first protruding shaft 205 causes the second protruding shaft 211 to align with itself, thereby making the hydraulic cylinder 203 coaxial with the first protruding shaft 205, that is, the hydraulic cylinder 203 is coaxial with the docking hole on the machine tool unit 101 provided with the first docking member 201;

[0071] Combining a and b, since the axis lines of the docking holes on the two sets of machine tool units 101 are parallel to each other after the two sets of machine tool units 101 are attached, the docking shaft 2032 and the hydraulic cylinder 203 are parallel to each other. Since the docking shaft 2032 and the hydraulic cylinder 203 are in a ball-hinged relationship, the axis line of the docking shaft 2032 and the axis line of the hydraulic cylinder 203 are in a parallel relationship and coincide with each other, that is, the axis lines of the docking holes on the two sets of machine tool units 101 coincide with each other, thus correcting the positional deviation between the two sets of machine tool units 101 and ensuring that they are precisely aligned.

[0072] Finally, the two sets of machine tool units 101 are connected and reinforced using existing fastener technology.

[0073] 3. Loosening after splicing:

[0074] Reference Figure 10 A clamping groove 2231 is provided on the side of the arc block away from the third protruding shaft 214.

[0075] A clamping bracket 225 is slidably mounted on one side of the second fixing seat 213 away from the docking hole along the axis of the docking hole. A spring 5 226 is provided 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.

[0076] A latch is extended from one side of the latch bracket 225 toward the docking hole. Initially, the latch contacts the side of the arc block where the latch groove 2231 is provided, and the spring five 226 is compressed.

[0077] A deflection rod 227 is hingedly provided on the side of the second fixing seat 213 facing 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 facing away from the axis of the docking hole is magnetically attracted by the magnet 228.

[0078] Reference Figure 11 The end of the clamping shaft section 2035 of the docking shaft 2032 is coaxially connected to the connecting section 2036, and the end of the 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 connecting section 2036.

[0079] 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 .

[0080] The clamping bracket 225, the clamping pin, the spring 226, the magnet 228 and the deflection rod 227 form a limit assembly, and there are four limit assemblies corresponding to the number of arc blocks.

[0081] The disassembly process of the machine tool unit 101 after splicing is as follows:

[0082] During the assembly process of the machine tool unit 101, the unlocking section 2037 comes into contact with the yaw rod 227, causing it to yaw. After the unlocking section 2037 passes over the yaw rod 227, the magnetic attraction of the magnet 228 resets the yaw rod 227. That is, after the assembly is completed, the unlocking section 2037 is located on the side of the yaw rod 227 that is away from the docking hole.

[0083] 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 locking groove 2231 is aligned with the locking pin, and the spring 5 226 releases its elastic force, allowing the locking pin to extend into the locking groove 2231.

[0084] 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 drives the deflection rod 227 to deflect. This deflection action can push the clamping bracket 225 to move away from the docking hole, thereby causing the latch to leave the slot 2231 and the suspension shaft 223 to return to its original position. 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 units 101 can move away from each other.

[0085] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. 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 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 the 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); the machine tool monomer (101) is provided with a docking hole; initially, the docking holes on the two adjacent groups of machine tool monomers (101) are coaxially arranged; The first docking component (201) comprises a first fixed seat (204) arranged on the machine tool unit (101); a first protruding 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 protruding 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 (206) is slidably installed in the first fixed seat (204) along the axial centerline direction of the docking hole, and a spring (207) is provided on the side of the first slide (206) facing the docking hole. The first slide (206) is in the shape of a rectangular with a hollow interior, and each of the four inner walls of the first slide (206) is 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). The first connecting member (208) is in the shape of a telescopic rod.

2. The splicing type CNC machining center with fine-tuning function according to claim 1, characterized in that: A slide rail (102) is provided on the base (100) along its length, 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 center with fine-tuning function according to claim 1, characterized in that: The first connecting member (208) includes 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 portion of the sliding sleeve is sleeved with a spring 2 located between the first sliding seat (206) and the first suspension bracket (210).

4. The splicing type CNC machining center with fine-tuning function according to claim 1, 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 configured 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).

5. The splicing type CNC machining center with fine-tuning function according to claim 4, characterized in that: The hydraulic cylinder (203) is located on a side of the first docking member (201) away from the docking hole and is coaxial with the docking hole. The hydraulic cylinder (203) is connected to the first suspension bracket (210) through the bracket body. The output end of the hydraulic cylinder (203) is provided with a connecting seat (2031). The connecting seat (2031) is provided with a docking shaft (2032) in a ball hinge. Initially, the end of the docking shaft (2032) passes through the second protruding shaft (211) and the first protruding shaft (205). The hole wall of the second protruding shaft (211) is coaxially provided with a rubber ring (212), and the rubber ring (212) is coaxially sleeved on the outside of the docking shaft (2032).

6. The splicing type CNC machining center with fine adjustment function according to claim 5, characterized in that: The second docking member (202) includes a second fixed seat (213) arranged on the machine tool unit (101); 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; A second slide (215) is slidably installed in the second fixed seat (213) along the axis direction of the docking hole, and a spring three (216) is provided on the side of the second slide (215) facing the docking hole. The second slide (215) is in the shape of a rectangular with a hollow interior, and 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). 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 configured to be in the shape of a truncated cone outer cylindrical surface. When the second suspension bracket (219) moves along the axial centerline of the docking hole, the outer cylindrical surface of the fourth convex shaft (220) can fit into the hole wall of the third convex shaft (214).

7. The splicing type CNC machining center with fine adjustment function according to claim 6, characterized in that: A third slide (221) is slidably mounted in the second suspension bracket (219) along the axis of the docking hole. A spring (222) is provided on one side of the third slide (221) facing the docking hole. The third slide (221) is in a rectangular shape with a hollow interior. Each of the four inner walls of the third slide (221) is 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 a telescopic rod structure, and the telescopic direction is perpendicular to the corresponding inner wall of the third slide (221). Initially, two adjacent arc blocks are fitted 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 in the shape of a truncated cone outer cylindrical surface. The hole wall of the fourth convex shaft (220) is set to be 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 portion 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).

8. The splicing type CNC machining center with fine adjustment function according to claim 7, characterized in that: The docking shaft (2032) comprises a main shaft section (2033) spherically hinged to the connecting seat (2031); the end of the main shaft section (2033) is coaxially connected to the connecting section 1 (2034); the end of the connecting section 1 (2034) is coaxially connected to the clamping shaft section (2035); the diameter of the main shaft section (2033) is larger than the diameter of the clamping shaft section (2035), which is larger than the diameter of the connecting section 1 (2034); the diameter of the connecting section 1 (2034) is equal to the initial inner diameter of the step provided on the suspension shaft (223); the main shaft section (2033) is capable of passing through the first protruding shaft (205), the second protruding shaft (211), the third protruding shaft (214) and the fourth protruding 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.

9. The splicing type CNC machining center with fine adjustment function according to claim 8, characterized in that: A clamping groove (2231) is provided on the side of the arc block away from the third convex shaft (214), a clamping bracket (225) is slidably installed on the side of the second fixing seat (213) away from the docking hole along the axis direction of the docking hole, a spring five (226) is provided between the clamping bracket (225) and the second fixing seat (213), the elastic force of the spring five (226) drives the clamping bracket (225) away from the docking hole, and a clamping pin extends from the side of the clamping bracket (225) toward the docking hole, and initially, the clamping pin contacts the side of the arc block provided with the clamping groove (2231) and the spring five (226) is compressed; A deflection rod (227) is hingedly provided on one side of the second fixing seat (213) facing 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) facing 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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