Rotating shaft supporting structure of numerical control machine tool

Abstract

The utility model discloses a numerically-controlled machine tool rotating shaft supporting structure and relates to the technical field of machine tools. The device structurally comprises a mounting block, a supporting block is fixedly mounted at the upper end of the mounting block, a rotating shaft body is arranged on the side wall of the supporting block, a mounting stabilizing assembly in contact with the surface of the rotating shaft body is mounted on the side wall of the supporting block, and a damping assembly is fixedly mounted on the side wall of the other end of the supporting block. According to the utility model, when the rotating shaft main body is placed in the insertion hole for auxiliary stable support, the contact block is firstly pulled towards the outer side, and then the external force knob is rotated, the plurality of groups of racks are driven to move close to each other relatively, so that the outer wall of the rotating shaft main body can be supported and fixed in an auxiliary manner, and then the contact block is loosened. And the telescopic force of the second telescopic spring can drive the contact block to make contact with the rack, the rotating shaft body is prevented from loosening and falling, the service life of the rotating shaft body is prolonged, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tools, in particular to a rotating shaft supporting structure of a numerical control machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing.

[0003] At present, the rotary axis used more in CNC machine tools is the geometric straight line on which rotationally symmetrical actions are performed. The rotary axis is the geometric straight line on which rotationally symmetrical actions are performed. In modern mechanical processing, when CNC machine tools use rotary axes to work, they will cause certain damage to the rotary axes of mechanical transmission during long-term working processes. When the rotary axis is installed and disassembled quickly, it is necessary to manually support the rotary axis all the time, and the rotary axis cannot have large disassembly actions during disassembly, which reduces the installation and disassembly efficiency of the rotary axis in disguise. Utility Model Content

[0004] The utility model aims to provide a rotating shaft supporting structure for a numerically controlled machine tool, which can improve the service life of a rotating shaft main body by reducing the shaking of the rotating shaft main body and solve the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a support structure for a rotating shaft of a numerically controlled machine tool, comprising a mounting block, a support block fixedly mounted on the upper end of the mounting block, a rotating shaft body provided on the side wall of the support block, a mounting and stabilizing component installed on the side wall of the support block at a position in contact with the surface of the rotating shaft body, and a damping component fixedly mounted on the side wall of the other end of the support block. The mounting and stabilizing component comprises an inner gear ring with a bearing mounted in a cavity of the side wall of the support block, a plurality of planetary gears in contact with the surface of the inner gear ring are mounted on the bearing in the cavity of the side wall of the support block, an insertion hole in contact with the surface of the rotating shaft body is opened on the side wall of the support block at the middle of the inner gear ring, a dust cover located outside the insertion hole is installed on the side wall of the support block, an external force knob penetrating and extending to the outside of the dust cover is fixedly mounted on the side wall of one group of the planetary gears, a contact block in contact with the surface of the rack is installed on the side wall of the dust cover, and two groups of connecting plates are fixedly mounted on the side wall of the contact block, and a positioning rod is installed inside each group of the connecting plates.

[0007] As a preferred technical solution of the utility model, the shock absorbing assembly includes multiple groups of bearing rings fixedly installed on the inner wall of the insertion hole and in contact with the surface of the rotating shaft body, a shock-absorbing force-bearing inner ring is provided on the side of the inner wall of the insertion hole close to the bearing ring, multiple groups of inclined gaskets are fixedly installed on the inner wall of the shock-absorbing force-bearing inner ring, multiple groups of limit blocks are fixedly installed on the inner wall of the shock-absorbing force-bearing inner ring on both sides below the inclined gasket, and the upper end of each group of the limit blocks is fixedly installed with a first telescopic spring fixed to the end of the inclined gasket.

[0008] As a preferred technical solution of the utility model, a second telescopic spring is sleeved on the outer wall of the positioning rod, and two ends of the second telescopic spring are respectively fixed to the positioning rod and the end of the contact block.

[0009] As a preferred technical solution of the utility model, a plurality of mounting plates are fixedly mounted on the outer wall of the bottom end of the mounting block, and locking rods are threadedly mounted inside the mounting block.

[0010] As a preferred technical solution of the utility model, the side wall of the dust cover is provided with multiple groups of travel grooves at positions in contact with the surface of the rack, and the shape of the travel grooves is consistent with the shape of the rack.

[0011] As a preferred technical solution of the utility model, the shape of the inclined gasket is in contact with the side wall of the rotating shaft body, and travel cavities are provided below both sides of the inclined gasket.

[0012] As a preferred technical solution of the utility model, a toggle rod is fixedly mounted on the side wall of the contact block, and the toggle rod is close to the external force knob.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model places the rotating shaft body into the insertion hole for auxiliary stable support, first pulls the contact block outward, and then rotates the external force knob to drive multiple sets of racks to move relatively close to each other, so that the outer wall of the rotating shaft body can be auxiliary supported and fixed, and when the contact block is released, the telescopic force of the second telescopic spring can drive the contact block to contact the rack to prevent the rotating shaft body from loosening and falling, thereby improving the service life of the rotating shaft body and the installation and disassembly efficiency.

[0015] 2. The utility model buffers the movement of the rotating shaft body, and multiple sets of bearing rings can reduce the friction coefficient between the rotating shaft body and the inner wall of the insertion hole. The inclined gasket can buffer the shaking force, and the first telescopic spring can further buffer and release the shaking force, thereby increasing the service life of the rotating shaft body by reducing the shaking of the rotating shaft body.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a structural schematic diagram of a rotating axis supporting structure of a CNC machine tool.

[0019] Figure 2 It is a front view structural diagram of the installation block.

[0020] Figure 3 It is a schematic diagram of the rear side structure of the mounting block.

[0021] Figure 4 for Figure 2 A partial enlarged view of point A in the middle.

[0022] Figure 5 It is a front view structural diagram of the shock absorbing component.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 100-mounting block; 110-support block; 120-rotating shaft body; 130-installation stabilization component; 140-shock absorbing component; 131-inner gear ring; 132-planetary gear; 133-insertion hole; 134-rack; 135-dust cover; 136-external force knob; 137-contact block; 138-connecting plate; 139-positioning rod; 141-bearing ring; 142-shock-absorbing inner ring; 143-tilted gasket; 144-first telescopic spring; 145-limit block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment one:

[0027] See also Figure 1-5As shown, the utility model is a rotating shaft support structure for a CNC machine tool, comprising a mounting block 100, a supporting block 110 is fixedly mounted on the upper end of the mounting block 100, a rotating shaft body 120 is provided on the side wall of the supporting block 110, a mounting stabilizing component 130 is mounted on the side wall of the supporting block 110 at a position in contact with the surface of the rotating shaft body 120, and a shock absorbing component 140 is fixedly mounted on the other end side wall of the supporting block 110.

[0028] The mounting and stabilizing component 130 includes an inner gear ring 131 with a bearing mounted in a cavity of a side wall of a support block 110, a plurality of planetary gears 132 are mounted on the bearing in the cavity of the side wall of the support block 110 at a surface contact position with the inner gear ring 131, an insertion hole 133 is provided in the middle of the inner gear ring 131 on the side wall of the support block 110 at a surface contact position with the rotating shaft body 120, a dust cover 135 is mounted on the side wall of the support block 110 at the outside of the insertion hole 133, an external force knob 136 penetrating through and extending to the outside of the dust cover 135 is fixedly mounted on the side wall of one group of planetary gears 132, a contact block 137 is mounted on the side wall of the dust cover 135 at a surface contact position with the rack 134, two groups of connecting plates 138 are fixedly mounted on the side wall of the contact block 137, and a positioning rod 139 is installed inside each group of connecting plates 138.

[0029] A specific application of this embodiment is: when the rotating shaft body 120 is placed inside the insertion hole 133 as an auxiliary stable support, the contact block 137 is first pulled outward to cause the contact block 137 to lose the pushing force on the side wall of the rack 134, and then the external force knob 136 is rotated, causing the planetary gear 132 installed at one end of the external force knob 136 to rotate. When the planetary gear 132 rotates, it can cause the inner gear ring 131 to rotate, and then when the inner gear ring 131 rotates, it can cause The multiple sets of planetary gears 132 are made to rotate synchronously, thereby driving the multiple sets of racks 134 to move relatively close to each other. At this time, the outer wall of the rotating shaft body 120 placed in the insertion hole 133 can be auxiliary supported and fixed. When the contact block 137 is released, the telescopic force of the second telescopic spring can drive the contact block 137 to contact the rack 134, preventing the rotating shaft body 120 from loosening and falling, thereby improving the service life of the rotating shaft body 120 and the installation and disassembly efficiency. Specific embodiment 2:

[0031] On the basis of the specific embodiment one, the difference of this embodiment lies in that the shock absorbing assembly 140 includes a plurality of groups of bearing rings 141 fixedly mounted on the inner wall of the insertion hole 133 and in contact with the surface of the rotating shaft body 120, a shock-absorbing force-bearing inner ring 142 is provided on the side of the inner wall of the insertion hole 133 close to the bearing ring 141, a plurality of groups of inclined gaskets 143 are fixedly mounted on the inner wall of the shock-absorbing force-bearing inner ring 142, a plurality of groups of limit blocks 145 are fixedly mounted on the inner wall of the shock-absorbing force-bearing inner ring 142 on both sides below the inclined gasket 143, and a first telescopic spring 144 fixed to the end of the inclined gasket 143 is fixedly mounted on the upper end of each group of limit blocks 145.

[0032] As shown in Figures 1 and 5, when the movement of the rotating shaft body 120 is buffered, when the rotating shaft body 120 is inserted into the interior of the insertion hole 133 and moves, the multiple sets of bearing rings 141 can reduce the friction coefficient between the rotating shaft body 120 and the inner wall of the insertion hole 133, and the rotating shaft body 120 may shake when rotating, and the inclined gasket 143 can be set to buffer the shaking force, and the first telescopic spring 144 can further buffer and release the shaking force until the bottom of the inclined gasket 143 fits with the limit block 145, completing the limiting work of the rotating shaft body 120, and improving the service life of the rotating shaft body 120 by reducing the shaking of the rotating shaft body 120. Specific embodiment three:

[0034] On the basis of the second specific embodiment, the difference of this embodiment is that a second telescopic spring is sleeved on the outer wall of the positioning rod 139, and two ends of the second telescopic spring are respectively fixed to the positioning rod 139 and the end of the contact block 137.

[0035] A plurality of mounting plates are fixedly mounted on the outer wall of the bottom end of the mounting block 100, and locking rods are threadedly mounted inside the mounting plates.

[0036] The side wall of the dust cover 135 is provided with a plurality of travel grooves at positions in contact with the surface of the rack 134 , and the shape of the travel grooves matches the shape of the rack 134 .

[0037] The shape of the inclined gasket 143 is in close contact with the side wall of the rotating shaft body 120 , and travel cavities are formed below both sides of the inclined gasket 143 .

[0038] A toggle rod is fixedly mounted on the side wall of the contact block 137 , and the toggle rod is close to the external force knob 136 .

[0039] like Figure 1 and Figure 5As shown, by loosening the toggle rod installed at the end of the contact block 137, the telescopic force of the second telescopic spring is compressed, and at the same time, the contact block 137 is always in contact with the rack 134 and limits the rack 134 to prevent the rack 134 from rotating on its own. The mounting plate mounting block 100 can be quickly installed in the working area of ​​the CNC machine tool through the multiple sets of mounting plates arranged on the side wall of the bottom end of the mounting block 100. The multiple sets of racks 134 are relatively close to and relatively far away from the stroke grooves opened on the side walls of the dust cover 135, so as to achieve the clamping action of the rotating shaft body 120. The shaking of the rotating shaft body 120 can be buffered by the distance between the two sets of stroke cavities opened below the inclined gasket 143.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A CNC machine tool rotary axis support structure, comprising a mounting block (100), characterized in that: A support block (110) is fixedly mounted on the upper end of the mounting block (100); a rotating shaft body (120) is disposed on the side wall of the support block (110); a mounting and stabilizing component (130) is mounted on the side wall of the support block (110) at a position in contact with the surface of the rotating shaft body (120); and a shock absorbing component (140) is fixedly mounted on the other end side wall of the support block (110); The mounting and stabilizing assembly (130) comprises an inner gear ring (131) with a bearing mounted in a cavity on the side wall of a support block (110); a plurality of planetary gears (132) are mounted on the bearing in the cavity on the side wall of the support block (110) at positions contacting the surface of the inner gear ring (131); an insertion hole (133) is provided in the middle of the inner gear ring (131) on the side wall of the support block (110) at a position contacting the surface of the rotating shaft body (120); and a plurality of planetary gears (132) are mounted on the side wall of the support block (110) at a position contacting the surface of the rotating shaft body (120). A dust cover (135) is disposed outside the entry hole (133), wherein a set of the side walls of the planetary gear (132) is fixedly mounted with an external force knob (136) that penetrates through and extends to the outside of the dust cover (135), the side wall of the dust cover (135) is mounted with a contact block (137) at a position that contacts the surface of the rack (134), and the side wall of the contact block (137) is fixedly mounted with two sets of connecting plates (138), and a positioning rod (139) is penetrated and mounted inside each set of the connecting plates (138).

2. The CNC machine tool rotary axis support structure according to claim 1, characterized in that: The shock absorbing assembly (140) comprises a plurality of groups of bearing rings (141) fixedly mounted on the inner wall of the insertion hole (133) and in contact with the surface of the rotating shaft body (120); a shock absorbing inner ring (142) is provided on the inner wall of the insertion hole (133) close to the bearing ring (141); a plurality of groups of inclined gaskets (143) are fixedly mounted on the inner wall of the shock absorbing inner ring (142); a plurality of groups of stop blocks (145) are fixedly mounted on the inner wall of the shock absorbing inner ring (142) and are located on both sides below the inclined gaskets (143); and a first telescopic spring (144) fixed to the end of the inclined gasket (143) is fixedly mounted on the upper end of each group of the stop blocks (145).

3. The CNC machine tool rotary axis support structure according to claim 1, characterized in that: A second telescopic spring is sleeved on the outer wall of the positioning rod (139), and two ends of the second telescopic spring are respectively fixed to the end of the positioning rod (139) and the contact block (137).

4. The CNC machine tool rotary axis support structure according to claim 1, characterized in that: A plurality of mounting plates are fixedly mounted on the outer wall of the bottom end of the mounting block (100), and locking rods are threadedly mounted inside the mounting block.

5. The CNC machine tool rotary axis support structure according to claim 1, characterized in that: The side wall of the dust cover (135) is provided with a plurality of travel grooves at positions in contact with the surface of the rack (134), and the shape of the travel grooves matches the shape of the rack (134).

6. The CNC machine tool rotary axis support structure according to claim 2, characterized in that: The shape of the inclined gasket (143) fits the side wall of the rotating shaft body (120), and travel cavities are provided below both sides of the inclined gasket (143).

7. The CNC machine tool rotary axis support structure according to claim 1, characterized in that: A toggle rod is fixedly mounted on the side wall of the contact block (137), and the toggle rod is close to the external force knob (136).

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