Oscillating head debugging structure and method and machine tool

Abstract

The invention discloses a swing head debugging structure and method and a machine tool. The swing head debugging structure comprises a swing head mounting seat, a first end is provided with a first annular end face, a second end is provided with a second annular end face, the swing head mounting seat is provided with threaded holes, and the threaded holes are distributed in the circumferential direction of the swing head mounting seat; the C-axis machine body is installed at the first end of the swing head installation base, and an axial interval is formed between the C-axis machine body and the first annular end face; the adjusting assembly comprises cushion blocks and a stud, the cushion blocks are supported between the C-axis machine body and the first annular end face, each cushion block is provided with a first open groove and a sinking groove, the stud is installed in the threaded hole through a second end thread, and the tail end of the stud extends out of the first annular end face and penetrates through the first open groove. The tail end of the stud is provided with an axial locking structure used for being matched with the sinking groove so as to lock the cushion block in the axial direction. According to the invention, the debugging difficulty during mounting of the swing head is greatly reduced, the plane does not need to be repeatedly shoveled until the C-axis axis of the swing head is parallel to the Z-axis axis of a machine tool, and the mounting and debugging efficiency of the swing head is improved.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and in particular to a tilting head adjustment structure, method, and machine tool. Background Technology

[0002] The direct-drive swivel head is a key component of a five-axis CNC machining center. Its A / C axes are directly driven by torque motors, offering high precision. However, due to this high precision, it's crucial to ensure the machine tool's Z-axis is parallel to the swivel head's axis during installation. Ensuring parallelism between the machine tool's Z-axis and the swivel head's C-axis has always been a major challenge during installation and debugging. Current machine tool manufacturers typically perform repeated installation and testing of the swivel head's axes, sometimes even scraping the mounting surface to achieve the required precision. This undoubtedly increases debugging time and labor costs significantly.

[0003] In summary, the problems existing in the relevant technologies urgently need to be solved. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a tilting head adjustment structure, method and machine tool.

[0005] The technical solution adopted by this invention to solve its technical problem is: Firstly, a head-swinging adjustment structure includes: The swivel head mounting base extends axially from a first end to a second end along the Z-axis of the machine tool. The first end is provided with a first annular end face, and the second end is provided with a second annular end face. The swivel head mounting base is provided with threaded holes extending axially from the first annular end face to the second annular end face, and a plurality of the threaded holes are distributed circumferentially along the swivel head mounting base. A C-axis body is installed at the first end of the swing head mounting seat, and an axial gap is formed between the C-axis body and the first annular end face. The adjustment assembly includes pads and studs. A plurality of pads are arranged circumferentially at axial intervals and supported between the C-axis body and the first annular end face. Each pad has a first opening groove on the side facing the Z-axis of the machine tool, and a countersunk groove on the side facing the C-axis body. The stud is threaded into the threaded hole by the second end, and the end of the stud extends out from the first annular end face and passes through the first opening groove. The end of the stud has an axial locking structure for engaging with the countersunk groove to lock the pad axially.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the first opening slot is a T-shaped slot.

[0007] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the settling trough is located at the end of the first open trough.

[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the end of the stud is provided with a threadless cylindrical surface, the axial locking structure includes a retaining ring and a countersunk screw, the retaining ring is fitted onto the end of the stud and locked into the countersunk groove by the countersunk screw, and the end of the retaining ring is provided with a tapered surface that mates with the countersunk screw.

[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the oscillating head mounting base is provided with a through hole extending axially from the first annular end face to the second annular end face, and a plurality of the through holes are distributed circumferentially along the oscillating head mounting base, and the C-axis body is mounted to the oscillating head mounting base by screws passing through the through holes.

[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the pad has a second opening groove on the side facing the Z-axis of the machine tool for the screw to pass through.

[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the axes of the first annular end face and the second annular end face are coaxial with the axis of the machine tool's Z-axis.

[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the through hole and the threaded hole are located on the same circumference with the axis of the machine tool Z-axis as the center, the pad extends in an arc shape, and the first opening groove and the second opening groove both extend radially along the pad.

[0013] In a second aspect, a machine tool includes the head-swivel adjustment structure described in any implementation of the first aspect.

[0014] Thirdly, a head-swinging debugging method, employing the head-swinging debugging structure as described in any implementation of the second aspect, includes the following steps: The yaw angle of the C-axis axis of the C-axis body relative to the Z-axis axis of the machine tool is measured, and the grinding amount required for the pad is calculated based on the yaw angle. Loosen the screws connecting the C-axis body and the swing head mounting base, screw the stud in towards the first end, and lift the C-axis body through the stud, so that the axial locking structure is dislodged from the groove, and remove the pad block; The pad is ground according to the calculated grinding amount; Reinstall the ground pad from its corresponding disassembly position, and align the first slot with the stud and the second slot with the screw. Tighten the stud and the screw. One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of the present invention, the adjustment of the mounting plane of the oscillating head is achieved by adjusting the adjustment component, thereby adjusting the axis of the oscillating head. This significantly reduces the difficulty of debugging during the installation of the oscillating head, eliminating the need for repeated disassembly and assembly of the oscillating head and scraping the plane until the C-axis axis of the oscillating head is parallel to the Z-axis axis of the machine tool. This not only reduces the difficulty of repeated disassembly and assembly for workers and lowers the danger of hoisting the oscillating head during disassembly and assembly, but also increases the efficiency of oscillating head installation and debugging. Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the Z-axis of a machine tool and the C-axis of a swivel head according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a swing head structure according to an embodiment of the present invention; Figure 3 This is an exploded view of the structure of an adjustment component according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the adjustment component structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a pad block structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the pad block before disassembly according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the pad block after disassembly according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the mating structure of the pad block, stud, and screw in one embodiment of the present invention. Detailed Implementation

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0018] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0020] See Figures 1-8 An embodiment of the present invention provides a swivel head adjustment structure, including a swivel head mounting base 100, a C-axis body 200, and an adjustment component 300. The swivel head mounting base 100 defines the Z-axis axis of the machine tool. The swivel head mounting base 100 extends from a first end to a second end along the Z-axis axis of the machine tool. The first end is provided with a first annular end face 101, and the second end is provided with a second annular end face 102. The swivel head mounting base 100 is provided with threaded holes 103 extending axially from the first annular end face 101 to the second annular end face 102. A plurality of threaded holes 103 are distributed circumferentially along the swivel head mounting base 100.

[0021] The C-axis body 200 is mounted on the first end of the swing head mounting base 100. The C-axis body 200 defines the C-axis axis of the swing head, and an axial gap is formed between the C-axis body 200 and the first annular end face 101.

[0022] The adjustment assembly 300 includes pads 301 and studs 302. Multiple pads 301 are arranged circumferentially at axial intervals and supported between the C-axis body 200 and the first annular end face 101. In other words, multiple pads 301 are installed on the first annular end face 101. Furthermore, the top end face of the pads 301 forms a swing head mounting plane that directly supports the C-axis body 200. Thus, the support height of the swing head mounting plane can be adjusted by adjusting the thickness of different pads 301, and finally the adjustment of the swing head C-axis axis can be achieved. The pad 301 has a first opening groove 303 on the side facing the Z-axis of the machine tool, and a countersunk groove 304 on the side facing the C-axis of the machine body 200. A stud 302 is threaded into a threaded hole 103 at its second end. The end of the stud 302 extends from a first annular end face 101 and passes through the first opening groove 303. The end of the stud 302 has an axial locking structure for engaging with the countersunk groove 304 to lock the pad 301 axially. The stud 302 can be rotated and adjusted from the second annular end face 102. Furthermore, by engaging with the threaded hole 103, the axial locking structure can be controlled to move outward from the countersunk groove 304 to release the pad 301 or to lock it within the countersunk groove 304 to secure the pad 301. At the same time, the stud 302 can also be used as a set screw to lift the C-axis body 200, so as to resist the influence of the weight of the swing head C-axis body 200 when it is installed vertically or on the side, and to facilitate the installation of the adjusting pad 301.

[0023] In the technical solution of this invention, the adjustment component 300 is used to adjust the mounting plane of the oscillating head, thereby achieving the effect of adjusting the oscillating head axis. This significantly reduces the difficulty of adjusting the oscillating head during installation, eliminating the need for repeated disassembly and assembly of the oscillating head and scraping the plane until the C-axis of the oscillating head is parallel to the Z-axis of the machine tool. This not only reduces the difficulty of repeated disassembly and assembly for workers and lowers the danger of hoisting the oscillating head during disassembly and assembly, but also increases the efficiency of oscillating head installation and adjustment.

[0024] See Figure 3 , Figure 4 The 100 swivel head mounting bases are configured as one or more components. For example, in some embodiments, the swivel head mounting base 100 includes a bottom connecting base 104 and a top mounting base 105. The connecting base 104 and the mounting base are assembled as a whole along the Z-axis of the machine tool. A second annular end face 102 is disposed at the bottom of the connecting base 104, and a first annular end face 101 is disposed at the top of the mounting base 105. The C-axis body 200 is mounted on the top of the mounting base 105.

[0025] In some embodiments, see Figure 5The first opening groove 303 of the pad 301 is a T-shaped groove, that is, the first opening groove 303 has a shallow groove on the edge facing the C-axis body 200 to form a T-shaped cross section. The T-shaped groove is used to avoid the axial locking structure at the end of the stud 302 when the pad 301 is disassembled and assembled, so that when the pad 301 is disassembled and assembled, the axial locking structure at the end of the stud 302 does not need to extend completely from the first opening groove 303 toward the C-axis body 200, and the pad 301 can be pulled out or inserted to the side.

[0026] In some embodiments, see Figure 5 The recess 304 is located at the end of the first open groove 303, ensuring that when the pad 301 is installed in the axial gap, the axial locking structure and the recess 304 can be precisely aligned by the cooperation between the end of the first open groove 303 and the stud 302, reducing the assembly difficulty of the pad 301 and improving the convenience and accuracy of the installation of the pad 301.

[0027] In some embodiments, see Figure 3 , Figure 4 The stud 302 has a threadless cylindrical surface at its end. The axial locking structure includes a retaining ring 305 and a countersunk screw 306. The retaining ring 305 is fitted onto the end of the stud 302 and locked into the countersunk groove 304 by the countersunk screw 306. The end of the retaining ring 305 has a tapered surface that mates with the countersunk screw 306. After the stud 302 is locked along the threaded hole 103, the countersunk screw 306 is embedded in the tapered surface of the retaining ring 305. The retaining ring 305 is engaged in the countersunk groove 304 of the first opening groove 303, and the pad 301 is axially locked to the first annular end face 101.

[0028] Understandably, axial locking structures can also use nuts, limit pins, etc. In some embodiments, see Figure 2 , Figure 5 , Figure 8 The oscillating head mounting base 100 has through holes 106 extending axially from the first annular end face 101 to the second annular end face 102. Multiple through holes 106 are distributed circumferentially along the oscillating head mounting base 100. The C-axis body 200 is mounted to the oscillating head mounting base 100 by screws 107 passing through the through holes 106. In this embodiment, the screws 107 connecting the C-axis body 200 and the oscillating head mounting base 100, as well as the bolts for the mounting pads 301, are all located on the first annular end face 101 and the second annular end face 102. This greatly simplifies the space of the oscillating head adjustment structure and facilitates quick assembly and disassembly of the screws 107 and bolts during adjustment.

[0029] Further, see Figure 5The pad 301 has a second opening groove 307 on the side facing the Z-axis of the machine tool for the screw 107 to pass through. When the pad 301 is disassembled or assembled, the screw 107 can be inserted into the second opening groove 307 of the pad 301, thereby allowing the pad 301 to avoid the screw 107 and forming a larger area and a flatter swing head mounting surface on the first annular end face 101.

[0030] In some embodiments, the axes of the first annular end face 101 and the second annular end face 102 are coaxial with the axis of the machine tool Z-axis.

[0031] In some embodiments, see Figure 5 , Figure 8 The through hole 106 and the threaded hole 103 are located on the same circumference centered on the Z-axis of the machine tool. The pad 301 extends in an arc shape for a certain length, and the first opening groove 303 and the second opening groove 307 both extend radially along the pad 301. For example, in Figure 5 In the embodiment shown, through holes 106 and threaded holes 103 are arranged alternately. A first opening groove 303 is provided in the middle of a pad block 301, and a second opening groove 307 is provided on each side of the first opening groove 303. The entire pad block 301 is comb-shaped.

[0032] Embodiments of the present invention also provide a machine tool including the tilting head adjustment structure of any of the above embodiments.

[0033] Embodiments of the present invention also provide a head-swinging adjustment method, employing the head-swinging adjustment structure in any of the above embodiments, comprising the following steps: The yaw angle of the C-axis axis of the C-axis body 200 relative to the Z-axis axis of the machine tool is measured, and the grinding amount required for the pad 301 is calculated based on the yaw angle. Loosen the screws 107 connecting the C-axis body 200 and the swing head mounting seat 100, screw the stud 302 in the first end direction, and lift the C-axis body 200 through the stud 302, so that the axial locking structure is dislodged from the groove 304, and remove the pad 301. The grinding pads are ground according to the calculated grinding amount; Reinstall the ground pad 301 from the corresponding disassembly position, and align the first opening slot 303 with the stud 302 and the second opening slot 307 with the screw 107. Tighten stud 302 and screw 107, and re-measure the axis parallelism until the required accuracy is achieved.

[0034] For example, in some specific embodiments, see Figures 6-8During disassembly, use a wrench to rotate the bolt, causing it to rotate upward along the threaded hole 103. At this time, the retaining ring 305 exits from the countersunk groove 304 on the pad 301, and the pad 301 can be separated from the retaining ring 305 through the T-slot. At this time, the pad 301 is in a free state and can be removed for grinding. During installation, slowly insert the pad 301 from the corresponding disassembly position. The two second opening grooves 307 on the left and right sides of the pad 301 avoid the screw 107, and the middle T-slot avoids the bolt. Push it to the deepest point until the outer circle of the retaining ring 305 on the bolt fits into the inner hole of the T-slot. Rotate the bolt, causing it to rotate downward along the threaded hole 103, and the retaining ring 305 sinks into the countersunk groove 304 on the pad 301. Continue until the lower end face of the retaining ring 305 fits into the end face of the countersunk groove 304 on the pad 301. Tighten the bolt, at which point the pad 301 fits tightly into the first annular end face 101 of the swing head mounting base 100, restoring the initial state of the swing head. Tighten the oscillating head using the standard torque; this completes one adjustment of the oscillating head axis.

[0035] The embodiments of the present invention have the following advantages: 1. Simple structure, low cost, and easy maintenance. The overall structure is simple and can be disassembled and replaced at any time.

[0036] 2. Easy assembly and disassembly, increasing safety. Unlike conventional swivel head installation methods, this structure eliminates the need to disassemble the swivel head, greatly saving installation time and complexity, and eliminating the hoisting step, thus significantly increasing safety.

[0037] 3. Wide range of applications. This structure is suitable for all flange-mounted swivel heads or spindles. Whether suspended, side-mounted, or vertical, it can meet the working conditions. The assembly formed by the bolts and retaining ring 305 can also be used as a set screw to lift the swivel head, which is convenient for resisting the influence of the swivel head's own weight when vertically or side-mounted, and facilitates the installation of the pad 301.

[0038] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A swing-to-dig configuration, characterized by, The application relates to a swing head adjusting structure. The swing head adjusting structure comprises a swing head mounting base extending along the Z-axis of a machine tool from a first end to a second end, the first end being provided with a first annular end face, the second end being provided with a second annular end face, the swing head mounting base being provided with threaded holes extending along the axial direction from the first annular end face to the second annular end face, a plurality of the threaded holes being distributed along the circumferential direction of the swing head mounting base; a C-axis machine body mounted at the first end of the swing head mounting base, the C-axis machine body being axially spaced apart from the first annular end face; and an adjusting assembly comprising a plurality of shims and a stud, the shims being circumferentially arranged in the axial space between the C-axis machine body and the first annular end face, each of the shims being provided with a first open slot on the side facing the Z-axis of the machine tool, the first open slot being provided with a recess on the side facing the C-axis machine body, the stud being threadedly mounted in the threaded hole of the second end, the end of the stud extending out of the first annular end face and penetrating through the first open slot, the end of the stud being provided with an axial locking structure for cooperating with the recess to axially lock the shims. The first open slot is a T-shaped slot. The recess is arranged at the end of the first open slot.

2. The swing test structure of claim 1, wherein, The end of the stud is provided with a non-threaded cylindrical surface, the axial locking structure comprises a fixing ring and a countersunk screw, the fixing ring being sleeved on the end of the stud and locked in the recess by the countersunk screw, the end of the fixing ring being provided with a tapered surface for cooperating with the countersunk screw.

3. The swing test structure of claim 2, wherein, The swing head mounting base is provided with through holes extending along the axial direction from the first annular end face to the second annular end face, a plurality of the through holes being distributed along the circumferential direction of the swing head mounting base, the C-axis machine body being mounted on the swing head mounting base by a screw penetrating through the through hole.

4. The swing test structure of claim 1, wherein, The shims are provided with a second open slot on the side facing the Z-axis of the machine tool for the screw to penetrate through.

5. The swing test structure according to any one of claims 1 to 4, characterized in that The axes of the first annular end face, the second annular end face and the Z-axis of the machine tool are coaxial.

6. The swing test structure of claim 5, wherein, The through hole and the threaded hole are located on the same circumference with the axis of the Z-axis of the machine tool as the center, the shims extend in an arc shape, and the first open slot and the second open slot extend along the radial direction of the shims.

7. The swing test structure of claim 6, wherein, The swing head adjusting structure comprises the swing head adjusting structure according to any one of claims 1-8.

8. The swing test structure of claim 7, wherein, The swing head adjusting structure according to any one of claims 4-8 comprises the following steps.

9. A machine tool, characterized by The swing head adjusting structure according to any one of claims 4-8 comprises the following steps.

10. A method of swing adjustment, characterized by, The swing head adjusting structure according to any one of claims 4-8 comprises the following steps. The swing head adjusting structure according to any one of claims 4-8 comprises the following steps. The swing head adjusting structure according to any one of claims 4-8 comprises the following steps. The swing head adjusting structure according to any one of claims 4-8 comprises the following steps. The swing head adjusting structure according to any one of claims 4-8 comprises the following steps. ​

Images