Numerical control machine tool and center frame thereof

Abstract

The utility model discloses a numerical control machine tool and a center frame thereof, the center frame of the numerical control machine tool comprises a base, a support and a plurality of telescopic assemblies, and a supporting area is formed above the base; one end of the support is fixedly connected with the base, and the other end of the support is wound around the supporting area along the axis in the front-back direction and is spaced from the base, so that an avoiding notch allowing a workpiece to be machined to pass through is formed. The multiple telescopic assemblies are arranged on the support, located on the peripheral side of the supporting area and used for supporting the workpiece to be machined. When the long-axis parts need to be installed, the long-axis parts enter the supporting area from the receding notch, then the long-axis parts are supported through the multiple telescopic assemblies, the structure is simple, operation is convenient, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely relates to a numerical control machine tool and its center frame. BACKGROUND

[0002] When installing long shaft type parts, generally through the clamping device of numerical control machine tool clamping and fixing one end of long shaft type parts, the clamping device drives long shaft type parts to rotate, in order to prevent long shaft type parts from shaking when rotating, need through the center frame to support the other end of long shaft type parts, the existing center frame is mostly two supports spliced, two supports are hinged in a section, and the other end is fixedly connected through a through hole, when placing long shaft type parts, need to open two supports, then put in long shaft type parts, finally fixedly connect through bolt, it is troublesome to operate, and the efficiency is low. SUMMARY

[0003] The utility model discloses a numerical control machine tool and its center frame, aiming at solving the problems that the center frame of numerical control machine tool can only detect the fixed position of the pin in the prior art, and cannot detect other positions of the pin when needing to detect other positions of the pin, and the universality of the center frame of numerical control machine tool is poor.

[0004] In order to realize the above-mentioned purpose, the utility model provides a center frame of numerical control machine tool, which comprises:

[0005] A base forms a support area on the top;

[0006] A support is fixedly connected with the base at one end, and is arranged along the axis of the front and back direction around the support area and is spaced apart from the base to form an avoiding gap for the workpiece to pass through; and

[0007] A plurality of telescopic components are arranged on the support and located on the circumferential side of the support area to support the workpiece.

[0008] Optionally, a through hole is formed in the support towards the support area, and an installation cavity is formed in the base to communicate with the through hole, and the telescopic component arranged in the through hole comprises:

[0009] A sleeve is rotatably installed in the through hole along the depth direction of the through hole, and a thread is arranged in the sleeve;

[0010] A movable rod is provided with a thread corresponding to the sleeve, one end of the movable rod is threadedly connected with the sleeve, and the other end of the movable rod extends towards the support area along the depth direction of the through hole;

[0011] A driving mechanism is connected with the sleeve to drive the sleeve to rotate.

[0012] Optionally, the driving mechanism further comprises:

[0013] a rotating shaft rotatably mounted in the mounting cavity along the depth direction of the through hole and fixedly connected to the sleeve, wherein a worm gear is further provided on the rotating shaft;

[0014] The worm is rotatably mounted in the mounting cavity and meshes with the worm wheel.

[0015] Optionally, one end of the worm away from the worm wheel extends outwardly to the outside of the mounting cavity to form an adjusting knob.

[0016] Optionally, there are three telescopic components, which are evenly distributed around the supporting area.

[0017] Optionally, a threaded hole connected to the installation cavity is further provided on the outside of the base, and the center frame of the CNC machine tool also includes a screw, which is threadedly connected to the threaded hole. One end of the screw close to the installation cavity abuts against the worm to limit the rotation of the worm.

[0018] Optionally, a plurality of grooves are provided on the circumferential side of the worm corresponding to the screw, for the screw to be inserted into and connected to the grooves.

[0019] The present invention further provides a CNC machine tool, comprising the center frame of the CNC machine tool, wherein the center frame of the CNC machine tool comprises:

[0020] a base, forming a support area on top;

[0021] a bracket, one end of which is fixedly connected to the base, and the other end of which is arranged around the support area along the axis in the front-to-back direction and spaced apart from the base to form an avoidance gap for the workpiece to be processed to pass through; and

[0022] A plurality of telescopic components are provided on the bracket and located around the supporting area to support the workpiece to be processed.

[0023] In the technical solution provided by the present invention, when long-axis components need to be installed, the long-axis components are moved into the support area from the avoidance gap, and then the long-axis components are supported by abutment through multiple telescopic components. The structure is simple, the operation is convenient, and the practicality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0025] Figure 1 The structure diagram of an embodiment of the center frame of the numerical control machine tool provided by the present application is shown in the figure.

[0026] Figure 2 For Figure 1 The structure diagram of the local part A of the center frame of the numerical control machine tool is shown in the figure.

[0027] Explanation of reference numerals:

[0028] Reference Name Reference Name 100 Headstock of a numerically controlled machine tool 31 Sleeve 1 Base 32 Movable lever 11 Support area 33 Drive mechanism 12 Mounting cavity 331 Rotary shaft 2 Bracket 332 Worm wheel 21 Relief gap 333 Worm 22 Through hole 334 Adjustment knob 3 Telescopic assembly

[0029] The implementation, functional features and excellent effects of the present application will be further described below in combination with specific embodiments and drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] It should be noted that if the present application embodiments involve directional indications, the directional indications are only used to explain the relative position relationship, movement condition and the like between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, if the present application embodiments involve descriptions of "first", "second" and the like, the descriptions of "first", "second" and the like are only for description purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0033] When installing long shaft parts, one end of the long shaft part is generally clamped and fixed by a clamping device of a numerical control machine tool, and the clamping device drives the long shaft part to rotate. In order to prevent the long shaft part from shaking during rotation, the other end of the long shaft part needs to be supported by a center stand. The existing center stand is usually composed of two supports which are hingedly connected at one end and fixedly connected at the other end by a through hole. When placing the long shaft part, the two supports need to be opened, the long shaft part is then placed, and finally the two supports are fixedly connected by bolts. The operation is troublesome and the efficiency is low.

[0034] Therefore, the utility model provides a center stand of numerical control machine tool, Figures 1 to 2 An embodiment of the center stand of numerical control machine tool is provided.

[0035] As Figure 1 shown, the center stand of numerical control machine tool 100 comprises a support area 111, a support 2 and a plurality of telescopic assemblies 3. The support area 111 is formed above a support area. One end of the support 2 is fixedly connected with the support area 111, and the other end is arranged along the axis of the front and back direction around the support area and is spaced apart from the support area 111 to form an avoiding gap 21 for the workpiece to pass through. The plurality of telescopic assemblies 3 are arranged on the support 2 and located on the circumferential side of the support area to support the workpiece.

[0036] In the technical scheme, when the long shaft part needs to be installed, the long shaft part is placed from the avoiding gap 21 into the support area, and then the plurality of telescopic assemblies 3 abut and support the long shaft part. The structure is simple, the operation is convenient, and the practicability is good.

[0037] Specifically, please refer to Figure 2At the connection between the support area 111 and the support 2, a through hole 22 is provided on the support 2 towards the support area, an installation cavity 12 is formed in the support area 111 and communicates with the through hole 22, in the telescopic assembly 3 provided in the through hole 22, the telescopic assembly 3 comprises a sleeve 31, a movable rod 32 and a driving mechanism 33, the sleeve 31 is rotatably installed in the through hole 22 along the depth direction of the through hole 22, and the sleeve 31 is provided with a thread; the movable rod 32 is provided with a thread corresponding to the sleeve 31, one end of the movable rod 32 is threadedly connected with the sleeve 31, and the other end extends towards the support area along the depth direction of the through hole 22; the driving mechanism 33 is connected with the sleeve 31 to drive the sleeve 31 to rotate. In this embodiment, since the movable rod 32 is threadedly connected with the sleeve 31 and the movable rod 32 is not rotatable, when the sleeve 31 rotates in the through hole 22, the sleeve 31 gradually approaches or moves away from the movable rod 32, so that the telescopic range of the movable rod 32 towards the support area can be controlled to adapt to long shaft parts of different sizes.

[0038] Further, please refer to Figure 2 The driving mechanism 33 comprises a transmission shaft and a worm 333, the rotating shaft 331 is rotatably installed in the installation cavity 12 along the depth direction of the through hole 22 and is fixedly connected with the sleeve 31, and the rotating shaft 331 is further provided with a worm wheel 332; the worm 333 is rotatably installed in the installation cavity 12 and is engaged with the worm wheel 332. Through the self-locking of the worm wheel 332 and the worm 333, not only can the sleeve 31 and the movable rod 32 be reset, but also the driving direction can be changed, so that the designer can design according to the actual space of the machine tool.

[0039] In order to facilitate the on-site personnel to adjust the telescopic range of the movable rod 32, in this embodiment, one end of the worm 333 away from the worm wheel 332 extends outward to the outside of the installation cavity 12 to form an adjusting knob 334, and the on-site personnel can drive the worm 333 to rotate through the adjusting knob 334.

[0040] In order to ensure the stability of supporting the long shaft parts, in this embodiment, a plurality of telescopic assemblies 3 are provided with three (please refer to Figure 1 They are uniformly arranged on the side of the support area.

[0041] In order to further ensure that the movable rod 32 of the telescopic assembly 3 does not deviate, in the embodiment, a threaded hole communicating with the mounting cavity 12 is further arranged outside the support area 111, and the center frame 100 of the numerical control machine tool further comprises a screw rod which is threadedly connected with the threaded hole, and an end of the screw rod close to the mounting cavity 12 abuts against the worm 333 (not shown in the figure) to limit the rotation of the worm 333.

[0042] Further, a plurality of grooves corresponding to the screw rod are arranged on the periphery of the worm 333, so that the screw rod is inserted into the grooves to connect the grooves, and the stability is better.

[0043] The utility model also provides a numerical control machine tool which comprises the center frame 100 of the numerical control machine tool as described above. Since the numerical control machine tool adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0044] The above-mentioned is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures made by using the content of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A headstock of a numerically controlled machine tool, characterized by, The utility model relates to a center rest of a numerical control machine tool, which comprises: a base, which forms a support area on top; a support, one end of which is fixedly connected with the base, the other end of which is arranged along the axis of the front-back direction around the support area and is spaced apart from the base to form a gap for the workpiece to pass through; and a plurality of telescopic assemblies, which are arranged on the support and located on the periphery of the support area to support the workpiece.

2. The headstock of claim 1, wherein At the connection between the base and the support, a through hole is arranged on the support towards the support area, and a mounting cavity is formed in the base to communicate with the through hole. In the telescopic assembly arranged in the through hole, the telescopic assembly comprises: a sleeve, which is rotatably mounted in the through hole along the depth direction of the through hole, and a thread is arranged in the sleeve; a movable rod, which is provided with a thread corresponding to the sleeve, one end of the movable rod is threadedly connected with the sleeve, and the other end of the movable rod extends towards the support area along the depth direction of the through hole; 3. The headstock of claim 2, wherein a driving mechanism, which is connected with the sleeve to drive the sleeve to rotate. The driving mechanism comprises: a rotating shaft, which is rotatably mounted in the mounting cavity along the depth direction of the through hole and is fixedly connected with the sleeve, and a worm wheel is further arranged on the rotating shaft; 4. The headstock of claim 3, wherein a worm, which is rotatably mounted in the mounting cavity and is engaged with the worm wheel.

5. The headstock of claim 1, wherein One end of the worm away from the worm wheel extends outward to the outside of the mounting cavity to form an adjusting knob.

6. The headstock of claim 3, wherein Three telescopic assemblies are arranged on the periphery of the support area.

7. The headstock of claim 6, wherein A threaded hole is further arranged on the outside of the base to communicate with the mounting cavity, and a screw rod is further arranged on the center rest of the numerical control machine tool, the screw rod is threadedly connected with the threaded hole, and one end of the screw rod close to the mounting cavity abuts against the worm to limit the rotation of the worm.

8. A numerically controlled machine tool, characterized by comprising: A plurality of grooves are arranged on the periphery of the worm corresponding to the screw rod to allow the screw rod to be inserted into the grooves. The utility model relates to a center rest of a numerical control machine tool, which comprises: a base, which forms a support area on top; a support, one end of which is fixedly connected with the base, the other end of which is arranged along the axis of the front-back direction around the support area and is spaced apart from the base to form a gap for the workpiece to pass through; and a plurality of telescopic assemblies, which are arranged on the support and located on the periphery of the support area to support the workpiece. At the connection between the base and the support, a through hole is arranged on the support towards the support area, and a mounting cavity is formed in the base to communicate with the through hole. In the telescopic assembly arranged in the through hole, the telescopic assembly comprises: a sleeve, which is rotatably mounted in the through hole along the depth direction of the through hole, and a thread is arranged in the sleeve; a movable rod, which is provided with a thread corresponding to the sleeve, one end of the movable rod is threadedly connected with the sleeve, and the other end of the movable rod extends towards the support area along the depth direction of the through hole; a driving mechanism, which is connected with the sleeve to drive the sleeve to rotate. The driving mechanism comprises: a rotating shaft, which is rotatably mounted in the mounting cavity along the depth direction of the through hole and is fixedly connected with the sleeve, and a worm wheel is further arranged on the rotating shaft; a worm, which is rotatably mounted in the mounting cavity and is engaged with the worm wheel. One end of the worm away from the worm wheel extends outward to the outside of the mounting cavity to form an adjusting knob. Three telescopic assemblies are arranged on the periphery of the support area. A threaded hole is further arranged on the outside of the base to communicate with the mounting cavity, and a screw rod is further arranged on the center rest of the numerical control machine tool, the screw rod is threadedly connected with the threaded hole, and one end of the screw rod close to the mounting cavity abuts against the worm to limit the rotation of the worm. A plurality of grooves are arranged on the periphery of the worm corresponding to the screw rod to allow the screw rod to be inserted into the grooves. The utility model relates to a center rest of a numerical control machine tool, which comprises: a base, which forms a support area on top; a support, one end of which is fixedly connected with the base, the other end of which is arranged along the axis of the front-back direction around the support area and is spaced apart from the base to form a gap for the workpiece to pass through; and a plurality of telescopic assemblies, which are arranged on the support and located on the periphery of the support area to support the workpiece. At the connection between the base and the support, a through hole is arranged on the support towards the support area, and a mounting cavity is formed in the base to communicate with the through hole. In the telescopic assembly arranged in the through hole, the telescopic assembly comprises: a sleeve, which is rotatably mounted in the through hole along the depth direction of the through hole, and a thread is arranged in the sleeve; a movable rod, which is provided with a thread corresponding to the sleeve, one end of the movable rod is threadedly connected with the sleeve, and the other end of the movable rod extends towards the support area along the depth direction of the through hole; a driving mechanism, which is connected with the sleeve to drive the sleeve to rotate. The driving mechanism comprises: a rotating shaft, which is rotatably mounted in the mounting cavity along the depth direction of the through hole and is fixedly connected with the sleeve, and a worm wheel is further arranged on the rotating shaft; a worm, which is rotatably mounted in the mounting cavity and is engaged with the worm wheel. One end of the worm away from the worm wheel extends outward to the outside of the mounting cavity to form an adjusting knob. Three telescopic assemblies are arranged on the periphery of the support area. A threaded hole is further arranged on the outside of the base to communicate with the mounting cavity, and a screw rod is further arranged on the center rest of the numerical control machine tool, the screw rod is threadedly connected with the threaded hole, and one end of the screw rod close to the mounting cavity abuts against the worm to limit the rotation of the worm. A plurality of grooves are arranged on the periphery of the worm corresponding to the screw rod to allow the screw rod to be inserted into the grooves. The utility model relates to a center rest of a numerical control machine tool, which comprises:

Images