CN108177004A - Clamping mechanism and the lathe using the mechanism - Google Patents

Abstract

The present invention relates to numerically-controlled machine tool auxiliary device technical field, the lathe more particularly, to a kind of clamping mechanism and using the mechanism, which includes：Briquetting clamps plate and power plant；Briquetting is set to the top for clamping plate, and the middle part for clamping plate has bathtub construction, and annular table is circumferentially provided with along the inside of bathtub construction；Power plant is used to that briquetting to be driven to move to close to the direction of upper surface for clamping plate, so that outline border to be fixed is clipped between the lower face of briquetting and the table top of annular table.The lathe is fixed on including board and the clamping mechanism, clamping mechanism on board.The phenomenon that present invention can prevent outline border to be displaced clamps condition so as to improve the outline border in process, is conducive to improve the manufacturing yield and processing benefit of outline border.

Description

Clamping mechanism and machine tool using the mechanism

technical field

The invention relates to the technical field of auxiliary devices for numerical control machine tools, in particular to a clamping mechanism and a machine tool using the mechanism.

Background technique

Thin-walled outer frames, such as those made of zirconia minerals, are usually clamped by vacuum suction to fix the outer frame during the processing of the side walls. The installation method is prone to the phenomenon of displacement of the outer frame, which will cause a certain deformation of the side wall of the outer frame during the processing, and finally cause the processing size of the outer frame to fail to meet the processing requirements.

Contents of the invention

The purpose of the present invention is to provide a clamping mechanism and a machine tool using the mechanism to solve the technical problem in the prior art that the outer frame is easily displaced due to the vacuum suction clamping method.

The invention provides a clamping mechanism, comprising: a pressing block, a clamping plate and a power device; the pressing block is arranged above the clamping plate, the middle part of the clamping plate has a groove structure, and An annular platform is arranged in the inner circumference of the groove-shaped structure; the power device is used to drive the pressing block to move in a direction close to the upper end surface of the clamping plate, so that the outer frame to be fixed is clamped on the clamping plate. Between the lower end face of the pressing block and the table top of the ring table.

Further, the power device is located under the clamping plate, and the power device is connected to the pressing block through a tie rod assembly.

Further, the clamping plate is provided with a guide groove, and the pull rod assembly is arranged in the guide groove for moving the pull rod assembly along the guiding direction of the guide groove.

Further, the pressing block includes a first split body and a second split body, and the tie rod assembly includes a first strut and a second strut;

One end of the first strut is connected to the first split body, and the other end of the first strut is hinged to the power output end of the power device;

One end of the second strut is connected to the second split body, and the other end of the second strut is hinged to the power output end of the power device.

Further, the guiding direction of the guiding groove is inclined to the vertical plane.

Further, there are multiple annular platforms, and the heights of the multiple annular platforms are different from each other;

A plurality of annular platforms with different heights are distributed in a step-like order from low to high, and the annular platform with the highest height surrounds the annular platform with the lowest height.

Further, a support plate is also included, and the lower end surface of the clamping plate is fixedly connected with the support plate.

Further, a base plate is also included, the support plate is fixed on the base plate, and the power device is arranged on the base plate.

Further, the power device is an air cylinder, an electric cylinder or a hydraulic cylinder.

The present invention also provides a machine tool, comprising: a machine table and the clamping mechanism, and the clamping mechanism is fixed on the machine table.

Compared with prior art, the beneficial effect of the present invention is:

The clamping mechanism provided by the present invention includes: a pressing block, a clamping plate and a power device; the pressing block is arranged above the clamping plate, and the middle part of the clamping plate has a groove structure, which is arranged along the inner circumference of the groove structure There is an annular table; the power device is used to drive the pressing block to move close to the upper end surface of the clamping plate, so that the outer frame to be fixed is clamped between the lower end surface of the pressing block and the table surface of the annular table. By setting up a groove structure on the clamping plate, and setting up a ring platform inside the groove structure, when in use, after placing the outer frame on the table of the ring platform, use the power device to press down the pressure block, even if the outside The upper edge of the frame is in contact with the lower end surface of the pressing block, the lower edge of the outer frame is in contact with the table top of the ring platform, and the outer wall of the outer frame is in contact with the groove wall of the groove structure, so that the formed tight state can be The displacement phenomenon of the outer frame is prevented, thereby improving the clamping condition of the outer frame in the processing process, and helping to improve the manufacturing yield and processing efficiency of the outer frame.

The machine tool also provided by the present invention includes: a machine table and a clamping mechanism, and the clamping mechanism is fixed on the machine table. Based on the above analysis, it can be seen that the machine tool provided by the present invention can prevent the displacement of the outer frame, thereby improving the clamping conditions of the outer frame during processing, which is conducive to improving the manufacturing yield and processing efficiency of the outer frame.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a front view of the clamping mechanism provided by Embodiment 1 of the present invention;

Fig. 2 is a top view of the clamping mechanism provided by Embodiment 1 of the present invention;

Fig. 3 is a perspective view of the clamping mechanism provided by Embodiment 2 of the present invention;

Fig. 4 is a top view of the clamping mechanism provided by Embodiment 2 of the present invention.

In the figure: 102-clamping plate; 103-ring platform; 104-outer frame; 105-guiding groove; 106-first support rod; 107-second support rod; Body; 110-support plate; 111-bottom plate; 112-cylinder; 113-straight edge; 114-curved edge; 115-connecting rod.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Embodiment one

Fig. 1 is a front view of the clamping mechanism provided by the first embodiment of the present invention; Fig. 2 is a top view of the clamping mechanism provided by the first embodiment of the present invention; referring to Fig. 1 and Fig. 2, the first embodiment of the present invention provides a A clamping mechanism, comprising: a briquetting block, a clamping plate 102 and a power unit; the briquetting block is arranged above the clamping plate 102, and the middle part of the clamping plate 102 has a groove structure. A groove with a square cross section. An annular platform 103 is arranged along the inner circumference of the groove structure; the power device is used to drive the pressing block to move in a direction close to the upper end surface of the clamping plate 102, so that the outer frame 104 to be fixed is clamped under the pressing block Between the end surface and the table surface of the ring platform 103 .

In this embodiment, by opening a groove structure on the clamping plate 102, and setting up the ring platform 103 inside the groove structure, when in use, after the outer frame 104 is placed on the table top of the ring platform 103, use the power device Press the briquetting block downwards, even if the upper edge of the outer frame 104 is in contact with the lower end face of the briquetting block, the lower edge of the outer frame 104 is in contact with the table top of the annular platform 103, and the outer side wall of the outer frame 104 is in contact with the grooved structure. The walls of the grooves are attached to each other, so that the tight state formed can prevent the displacement of the outer frame 104, thereby improving the clamping conditions of the outer frame 104 in the processing process, which is conducive to improving the manufacturing yield and processing of the outer frame 104. benefit.

In this embodiment, the power device is located under the clamping plate 102, and the power device is connected to the pressing block through a tie rod assembly. Specifically, the power device moves the pressing block toward the upper end surface of the clamping plate 102 through the pull rod assembly, that is, the pressing block moves downward.

In this embodiment, the clamping plate 102 is provided with a guide groove 105 , and the pull rod assembly is disposed in the guide groove 105 for moving the pull rod assembly along the guiding direction of the guide groove 105 . Specifically, the guide groove 105 penetrates the upper and lower end surfaces of the clip-shaped plate, and the pull rod assembly is passed through the guide groove 105 , and the guiding direction of the guide groove 105 is the length direction of the guide groove 105 .

In this embodiment, the pressing block includes a first split body 108 and a second split body 109, and the tie rod assembly includes a first strut 106 and a second strut 107; one end of the first strut 106 is connected to the first split body 108, The other end of the first strut 106 is hinged to the power output end of the power device; one end of the second strut 107 is connected to the second split body 109, and the other end of the second strut 107 is hinged to the power output end of the power device.

Specifically, the first split body 108 and the second split body 109 are symmetrical structures; the first split body 108 includes a straight edge portion 113 and a bent edge portion 114 arranged at two ends of the straight edge portion; the number of guide grooves 105 is two One, the first strut 106 is penetrated in one of the guide grooves 105, and the second strut 107 is penetrated in the other guide groove 105; the cross-sectional shapes of the first strut 106 and the second strut 107 are both Parallelogram.

It should be noted that the cross-sectional shape of the first strut 106 and the second strut 107 can also be circular, and the cross-sectional shape of the guide groove 105 is also circular. 106 and the second pole 107 can move smoothly along the guiding direction of the guiding groove 105 . One end of the first strut 106 is fixedly connected to the first split body 108 , and one end of the second strut 107 is fixedly connected to the second body. It should also be noted that, in this embodiment, only the specific structure of the first sub-body 108 is described, and the structure of the second sub-body 109 is not described in detail. For details, refer to the specific structure of the first sub-body 108 . In order to ensure the stability of the rising of the briquetting block, two first struts 106 and two second struts 107 can be set, that is, the first split body 108 is jacked up by the two first struts 106, and the second split body 109 is jacked up by two second poles 107. Each strut corresponds to one guide groove 105 , that is, when two first struts 106 and two second struts 107 are provided, the number of guide grooves 105 is four.

In this embodiment, there are buffer pads on the lower end surface of the pressure block and the table surface of the ring platform 103, and the optional buffer pads are rubber pads, so as to ensure that the upper and lower edges of the outer frame 104 will not be damaged.

In this embodiment, the other end of the first strut 106 and the other end of the second strut 107 are connected to the power device through the connecting rod 115, wherein the two ends of the connecting rod 115 have waist-shaped holes respectively, and the first strut The other end of 106 and the hinge shaft of the connecting rod pass through one of the waist-shaped holes, and the other end of the second support rod 107 and the hinge shaft of the connecting rod pass through the other waist-shaped hole.

In this embodiment, the guiding direction of the guiding groove 105 is set obliquely to the vertical plane, which is a plane perpendicular to the horizontal plane. The first strut 106 and the second strut 107 are disposed behind the guide groove 105, and the first strut 106 and the second strut 107 form an expanded structure with a narrow bottom and a wide top.

In this embodiment, the clamping mechanism further includes a support plate 110 , and the lower end surface of the clamping plate 102 is fixedly connected to the support plate 110 . The clamping plate 102 is supported by a support plate 110 .

In this embodiment, the clamping mechanism further includes a bottom plate 111 on which the support plate 110 is fixed, and the power device is arranged on the bottom plate 111 . Specifically, the upper end surface of the support plate 110 is fixedly connected to the lower end surface of the clamping plate 102 , and the lower end surface of the support plate 110 is fixedly connected to the upper end surface of the bottom plate 111 . The number of support plates 110 is two, and the two support plates 110 are arranged at intervals, and the power device is located between the two support plates 110 .

In this embodiment, the power device is an air cylinder 112, an electric cylinder or a hydraulic cylinder. The extension and contraction of the expansion rod of the power device drives the movement of the pull rod assembly to realize the up and down movement of the briquetting block. The connecting rod is fixed on the telescopic rod of the power unit.

Specifically, the power device is a cylinder 112, which is fixedly connected to the telescopic rod of the cylinder 112, and the length direction of the connecting rod is perpendicular to the length direction of the telescopic rod of the cylinder 112.

It should be noted that in this embodiment, a detachable annular ring can also be arranged in the groove structure, and the annular platform 103 is set on the inner wall of the detachable annular ring, so that annular rings of different sizes and shapes can be replaced to match Frames 104 of different shapes and sizes.

The specific working mode of the clamping mechanism in this embodiment is:

The outer frame 104 is placed in the groove structure, the lower edge of the outer frame 104 is in contact with the table top of the ring platform 103, and the outer wall of the outer frame 104 is fitted with the groove wall of the groove structure; then the expansion and contraction of the cylinder 112 The rod moves downward, and the telescopic rod moves downward, thereby driving the connecting rod to move downward. After the connecting rod moves downward, it drives the first pole 106 and the second pole 107 to move along the guide groove 105, and the first pole 106 Then drive the first split body 108 to move downward and contact the upper edge of the outer frame 104, and the second pole 107 drives the second split body 109 to move downward and contact the upper edge of the outer frame 104, thereby The outer frame 104 is pressed tightly between the table top of the annular table 103 and the pressure block, so as to avoid the displacement and deformation of the outer frame 104 during the processing.

Embodiment two

The clamping mechanism in this embodiment is an improvement on the basis of Embodiment 1. The technical content disclosed in Embodiment 1 will not be described repeatedly, and the content disclosed in Embodiment 1 also belongs to the content disclosed in this embodiment.

Fig. 3 is a perspective view of the clamping mechanism provided by Embodiment 2 of the present invention; Fig. 4 is a top view of the clamping mechanism provided by Embodiment 2 of the present invention; see Fig. 3 and Fig. 4, in this embodiment, the ring table 103 The number is multiple, and the heights of the plurality of annular platforms 103 are different from each other; the plurality of annular platforms 103 of different heights are distributed in a step-like manner from low to high, and the highest annular platform 103 surrounds the lowest height annular platform 103 , that is to say, the annular platform 103 with the highest height is located on the periphery of the annular platform 103 with the lowest height. Such arrangement can match the outer frames 104 of different shapes and sizes. The outer frames 104 of different sizes can be placed on the annular platforms 103 of different heights.

Embodiment Three

Embodiment 3 of the present invention provides a machine tool, including: a machine table and the clamping mechanism provided in Embodiment 1 or Embodiment 2, and the clamping mechanism is fixed on the machine table. Wherein, the bottom plate 111 is fixed on the table top of the machine by screws.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope. Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

Claims (10)

1. A clamping mechanism, characterized in that it comprises: a briquetting block, a clamping plate and a power unit; the briquetting block is arranged above the clamping plate, and the middle part of the clamping plate has a groove structure, An annular platform is arranged along the inner circumference of the groove structure; the power device is used to drive the pressing block to move in a direction close to the upper end surface of the clamping plate, so that the outer frame to be fixed is clamped Between the lower end face of the pressing block and the table top of the annular table. 2 . The clamping mechanism according to claim 1 , wherein the power device is located below the clamping plate, and the power device is connected to the pressure block through a tie rod assembly. 3 . 3. The clamping mechanism according to claim 2, wherein the clamping plate is provided with a guide groove, and the pull rod assembly is arranged in the guide groove for making the pull rod assembly along the The guide direction of the guide groove moves. 4. The clamping mechanism according to claim 2 or 3, wherein the pressing block includes a first split body and a second split body, and the tie rod assembly includes a first strut and a second strut; One end of the first strut is connected to the first split body, and the other end of the first strut is hinged to the power output end of the power device; One end of the second strut is connected to the second split body, and the other end of the second strut is hinged to the power output end of the power device. 5 . The clamping mechanism according to claim 3 , wherein the guiding direction of the guiding groove is inclined to the vertical plane. 5 . 6. The clamping mechanism according to any one of claims 1-3, characterized in that, the number of the annular platforms is multiple, and the heights of the multiple annular platforms are different from each other; A plurality of annular platforms with different heights are distributed in a step-like order from low to high, and the annular platform with the highest height surrounds the annular platform with the lowest height. 7. The clamping mechanism according to any one of claims 1-3, further comprising a support plate, the lower end surface of the clamping plate is fixedly connected to the support plate. 8 . The clamping mechanism according to claim 7 , further comprising a bottom plate, the support plate is fixed on the bottom plate, and the power device is arranged on the bottom plate. 9. The clamping mechanism according to any one of claims 1-3, wherein the power device is an air cylinder, an electric cylinder or a hydraulic cylinder. 10. A machine tool, characterized by comprising: a machine table and the clamping mechanism according to any one of claims 1-9, the clamping mechanism being fixed on the machine table.