CN215201002U

CN215201002U - Milling machine capable of accurately measuring movement amount

Info

Publication number: CN215201002U
Application number: CN202121327514.XU
Authority: CN
Inventors: 陈汉祥
Original assignee: Jiangmen Jianghai Bailu Mould Steel Co ltd
Current assignee: Jiangmen Jianghai Bailu Mould Steel Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-17
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a milling machine of accurate measurement amount of movement, include: a body; the guide rail assembly is arranged on one side of the machine body and comprises a fixed plate fixedly connected with the machine body and a vertical guide rail connected with the fixed plate, one side of the vertical guide rail is matched with the fixed plate to form a protection cavity, the other side of the vertical guide rail is provided with a vertical guide groove, and the vertical guide rail is also provided with a vertical channel communicated with the protection cavity and the vertical guide groove; the workbench assembly comprises a lifting driving piece and a workbench in driving connection with the lifting driving piece, and the workbench is in guiding fit with the vertical guide groove; and the displacement measurement assembly comprises a grating ruler arranged in the protective cavity and a reading head connected with the workbench, at least part of the reading head is positioned in the vertical channel, and the reading head and the grating ruler are arranged oppositely. The milling machine for accurately measuring the movement quantity avoids the grating ruler from being easily damaged due to exposure.

Description

Milling machine capable of accurately measuring movement amount

Technical Field

The utility model belongs to the technical field of the processing equipment technique and specifically relates to a milling machine of accurate measurement amount of movement is related to.

Background

Milling machines are common machining equipment in machining. In a conventional milling machine, in order to increase the machining accuracy of the milling machine, a displacement sensor is provided on the milling machine to measure the amount of movement of the table.

As one type of displacement sensor, a grating ruler sensor is a measuring device that works by using the optical principle of a grating, and generally, the grating ruler sensor is composed of a grating ruler and a reading head, generally speaking, the grating ruler is installed on a machine body, the reading head is installed on a movable workbench, and the grating ruler on a traditional milling machine is generally exposed outside and is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a milling machine of accurate measurement amount of movement for solve the problem of traditional grating chi easy damage.

According to the utility model discloses a milling machine of accurate measurement amount of movement, include: a body; the guide rail assembly is arranged on one side of the machine body and comprises a fixed plate fixedly connected with the machine body and a vertical guide rail connected with the fixed plate, one side of the vertical guide rail is matched with the fixed plate to form a protective cavity, the other side of the vertical guide rail is provided with a vertical guide groove, and the vertical guide rail is further provided with a vertical channel communicated with the protective cavity and the vertical guide groove; the workbench assembly comprises a lifting driving piece and a workbench in driving connection with the lifting driving piece, and the workbench is in guiding fit with the vertical guide groove; and the displacement measurement assembly comprises a grating ruler arranged in the protective cavity and a reading head connected with the workbench, at least part of the reading head is positioned in the vertical channel, and the reading head and the grating ruler are arranged oppositely.

According to the utility model discloses milling machine of accurate measurement amount of movement has following technological effect at least:

in the milling machine for accurately measuring the movement amount, when the lifting driving piece drives the workbench to move vertically, the reading head can also move vertically along with the workbench, so that the vertical displacement of the workbench can be obtained through the grating ruler. In addition, because the grating ruler is arranged in the protective cavity formed by matching the vertical guide rail and the fixed plate, the vertical guide rail and the fixed plate can play a protective role on the grating ruler, and the grating ruler is prevented from being easily damaged due to exposure.

According to some embodiments of the utility model, the milling machine of accurate measurement amount of movement still include the connecting piece, the both ends of connecting piece respectively with the reading head and the workstation is connected.

According to some embodiments of the present invention, the vertical channel comprises a first side wall and a second side wall spaced apart and disposed opposite to each other in a transverse direction, the first side wall being formed with a first positioning protrusion, the second side wall being formed with a second positioning protrusion;

the reading head comprises a third side wall close to the first side wall and a fourth side wall close to the second side wall, a third positioning protrusion is formed on the third side wall, a fourth positioning protrusion is formed on the fourth side wall, the third positioning protrusion is in positioning fit with one side, away from the grating ruler, of the first positioning protrusion, and the fourth positioning protrusion is in positioning fit with one side, away from the grating ruler, of the second positioning protrusion.

According to the utility model discloses a some embodiments, the connecting piece is elastic connecting piece, elastic connecting piece can do the effort is applyed to the reading head, so that the protruding orientation that possesses of third location the protruding trend that removes of first location, just the protruding orientation that possesses of fourth location the protruding trend that removes of second location.

According to some embodiments of the utility model, elastic connection spare includes sleeve, first connecting axle, second connecting axle and elastic component, first connecting axle and the second connecting axle is followed respectively telescopic both ends are movably worn to locate in the sleeve, the elastic component set up in the sleeve and support hold in first connecting axle with between the second connecting axle, first connecting axle is kept away from the one end of second connecting axle is followed the sleeve stretches out and with reading head fixed connection, the second connecting axle is kept away from the one end of first connecting axle is followed the sleeve stretches out and with workstation fixed connection.

According to some embodiments of the invention, the elastic member is an elastic ball.

According to some embodiments of the utility model, the milling machine of accurate measurement amount of movement still include the dust keeper, the dust keeper set up in the vertical passageway, and be located reading head rest is close one side of workstation, the dust keeper is equipped with the vertical passageway of dodging, the connecting piece is movably worn to locate in the vertical passageway of dodging.

According to some embodiments of the present invention, the guide rail assembly is further provided with a dust suction hole communicating with the protection cavity; the milling machine for accurately measuring the movement amount further comprises a sealing element which is matched with the dust suction hole in an opening and closing mode.

According to some embodiments of the invention, the sealing member is a sealing plug, which is detachably plugged into the dust suction hole.

According to some embodiments of the utility model, the milling machine of accurate measurement amount of movement still include the display screen, the display screen with reading head communication connection.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a milling machine for accurately measuring a movement amount according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along section A-A of the graph of FIG. 1;

FIG. 3 is a schematic view of a partially enlarged structure at the position of the graph B shown in FIG. 2;

fig. 4 is a schematic structural diagram of a connecting member according to an embodiment of the present invention.

Reference numerals:

100. a body; 200. a machine base; 300. a table assembly; 310. a lifting drive member; 320. a work table; 400. a guide rail assembly; 401. a protective cavity; 402. a dust collection hole; 410. a fixing plate; 420. a vertical guide rail; 421. a first positioning protrusion; 422. a second positioning projection; 500. a displacement measuring assembly; 510. a grating scale; 520. a reading head; 521. a third positioning boss; 522. a fourth positioning boss; 600. a dust-proof member; 700. a connecting member; 710. a sleeve; 720. a first connecting shaft; 730. a second connecting shaft; 740. an elastic member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, a milling machine for accurately measuring a movement amount according to an embodiment includes a body 100, a base 200, a table assembly 300, a rail assembly 400, and a displacement measuring assembly 500.

As shown in fig. 1, the body 100 is disposed on the base 200; the housing 200 is the primary load-bearing carrier for carrying the fuselage 100 and other components.

As shown in fig. 1 and 2, the guide rail assembly 400 is disposed on one side of the body 100, the guide rail assembly 400 includes a fixing plate 410 fixedly connected to the body 100 and a vertical guide rail 420 connected to the fixing plate 410, one side of the vertical guide rail 420 cooperates with the fixing plate 410 to form a protection cavity 401, the other side of the vertical guide rail 420 is formed with a vertical guide groove, and the vertical guide rail 420 is further provided with a vertical channel communicating the protection cavity 401 with the vertical guide groove.

Specifically, the guide rail assembly 400 is disposed at the front side of the body 100, the fixing plate 410 is fixed at the front side of the body 100, one side of the vertical guide rail 420 is fixedly connected to the fixing plate 410, the vertical guide rail 420 is matched with the fixing plate 410 to form the protection cavity 401, and the other side of the vertical guide rail 420 is formed with a vertical guide groove for guiding a component matched with the vertical guide groove to move vertically.

More specifically, the fixing plate 410 is flat, the fixing plate 410 is fixedly connected with the front side of the body 100 through fasteners such as bolts or buckles, the cross section of the vertical guide rail 420 is i-shaped, one side of the vertical guide rail 420 is detachably and fixedly connected with the fixing plate 410 and is matched with the fixing plate to form a rectangular protective cavity 401, a vertical channel is arranged in the middle of the vertical guide rail 420, and the vertical channel is communicated with the protective cavity 401 and the vertical guide groove.

As shown in fig. 1 and 2, the work table assembly 300 includes a lifting driving member 310 and a work table 320 in driving connection with the lifting driving member 310, wherein the work table 320 is in guiding fit with the vertical guide groove.

Specifically, the lifting driving member 310 is disposed on the base 200, the working table 320 is disposed on the lifting driving member 310, the lifting driving member 310 is used for driving the working table 320 to perform lifting movement, and the working table 320 is guided and matched with the vertical guide groove, so that when the lifting driving member 310 drives the working table 320 to lift, the working table 320 can move vertically more precisely under the action of the vertical guide groove.

More specifically, the lifting driving member 310 is a cylinder or a hydraulic cylinder, the working platform 320 is fixedly connected to the lifting driving shaft of the lifting driving member 310, at least a portion of the working platform 320 is disposed in the vertical guide groove, and the working platform 320 can move along the groove wall of the vertical guide groove.

As shown in fig. 2, the displacement measuring assembly 500 includes a grating scale 510 disposed in the protective cavity 401 and a reading head 520 connected to the worktable 320, at least a portion of the reading head 520 is located in the vertical channel, and the reading head 520 is disposed opposite to the grating scale 510.

As shown in fig. 1 and 2, specifically, the grating scale 510 is fixedly connected to the fixing plate 410 and vertically disposed in the protection cavity 401, the grating scale 510 is disposed opposite to the vertical channel, the reading head 520 is disposed opposite to the grating scale 510 through the vertical channel, and when the lifting driving member 310 drives the worktable 320 to vertically move, the reading head 520 can also vertically move along with the worktable 320, so as to obtain a vertical displacement of the worktable 320 through the grating scale 510.

As shown in fig. 2 and 3, in one embodiment, the milling machine for accurately measuring the movement amount further includes a connecting member 700, and both ends of the connecting member 700 are connected to the reading head 520 and the table 320, respectively. The linkage 700 functions to connect the readhead 520 to the table 320 such that when the table 320 is moved vertically, the readhead 520 is also able to move vertically with the table 320.

As shown in fig. 3, further, the vertical channel includes a first side wall and a second side wall which are spaced apart and opposite to each other in the transverse direction, the first side wall is formed with a first positioning protrusion 421, and the second side wall is formed with a second positioning protrusion 422; the reading head 520 comprises a third side wall close to the first side wall and a fourth side wall close to the second side wall, the third side wall is formed with a third positioning projection 521, the fourth side wall is formed with a fourth positioning projection 522, the third positioning projection 521 is in positioning fit with one side of the first positioning projection 421 away from the grating ruler 510, and the fourth positioning projection 522 is in positioning fit with one side of the second positioning projection 422 away from the grating ruler 510. The first positioning projection 421 and the second positioning projection 422 are matched to form a positioning structure for positioning the reading head 520, so that the accuracy of the position of the reading head 520 when the reading head 520 is installed is ensured, and the detection error caused by the fact that the reading head 520 is not installed in place is avoided.

Specifically, the first positioning protrusion 421 is a vertical positioning strip formed on a first side wall of the vertical channel, and the first positioning protrusion 421 is located on one side of the vertical channel close to the protection cavity 401; the second positioning protrusion 422 is a vertical positioning strip formed on the second side wall of the vertical channel, the second positioning protrusion 422 is located on one side of the vertical channel close to the protection cavity 401, and the second positioning protrusion 422 and the first positioning protrusion 421 are arranged oppositely at intervals. The third positioning protrusion 521 is a positioning protrusion formed on a third side wall of the reading head 520, and the third positioning protrusion 521 is attached to one side of the first positioning protrusion 421 away from the grating ruler 510; the fourth positioning protrusion 522 is a positioning protrusion formed on a fourth sidewall of the reading head 520, and the fourth positioning protrusion 522 is attached to one side of the second positioning protrusion 422 away from the grating scale 510.

As shown in fig. 3, the link 700 is an elastic link capable of applying a force to the reading head 520 so that the third positioning protrusion 521 tends to move toward the first positioning protrusion 421 and the fourth positioning protrusion 522 tends to move toward the second positioning protrusion 422. Thus, the elastic connecting piece can ensure that the third positioning projection 521 is attached to one side of the first positioning projection 421 away from the grating ruler 510, and the fourth positioning projection 522 is attached to one side of the second positioning projection 422 away from the grating ruler 510, so as to ensure the accuracy of the position of the reading head 520.

Specifically, when the workbench 320 and the vertical rail 420 rub against each other, so that the workbench 320 and/or the vertical rail 420 are worn, the position accuracy of the reading head 520 can be ensured.

As shown in fig. 3 and 4, the connecting member further includes a sleeve 710, a first connecting shaft 720, a second connecting shaft 730 and an elastic member 740, the first connecting shaft 720 and the second connecting shaft 730 are movably disposed through the sleeve 710 from two ends of the sleeve 710 respectively, the elastic member 740 is disposed in the sleeve 710 and supported between the first connecting shaft 720 and the second connecting shaft, one end of the first connecting shaft 720, which is far away from the second connecting shaft 730, extends from the sleeve 710 and is fixedly connected with the reading head 520, and one end of the second connecting shaft 730, which is far away from the first connecting shaft 720, extends from the sleeve 710 and is fixedly connected with the worktable 320.

The elastic member 740 is used for providing elastic force to the first connecting shaft 720 and the second connecting shaft, so that the third positioning protrusion 521 has a tendency to move towards the first positioning protrusion 421, and the fourth positioning protrusion 522 has a tendency to move towards the second positioning protrusion 422.

Alternatively, the elastic member 740 may be an elastic member such as a spring, a leaf spring, or elastic rubber.

In the present embodiment, the elastic member 740 is an elastic ball made of elastic rubber.

It should be noted that, by selecting the elastic member 740 with a suitable elastic modulus, the third positioning protrusion 521 has a tendency to move toward the first positioning protrusion 421, and the fourth positioning protrusion 522 has a tendency to move toward the second positioning protrusion 422, the reading head 520 can also move vertically with the workbench 320 under the action of the lifting drive 310.

As shown in fig. 2 and 3, in one embodiment, the milling machine for accurately measuring the movement amount further includes a dust-proof member 600, the dust-proof member 600 is disposed in the vertical channel and is located on a side of the reading head 520 close to the worktable 320, the dust-proof member 600 is provided with a vertical avoiding channel, and the connecting member 700 is movably disposed in the vertical avoiding channel. The dust-proof member 600 is used for preventing external pollutants from entering the protection cavity 401 through the vertical channel to pollute the grating ruler 510, and the vertical avoiding channel on the dust-proof member 600 can enable two ends of the connecting member 700 to be respectively connected with the reading head 520 and the workbench 320.

Specifically, the dustproof member 600 is a dustproof pad shaped like a long strip, one side of the dustproof pad abuts against the first side wall of the vertical channel, and the other side of the dustproof pad abuts against the second side wall of the vertical channel, so that the dustproof function is achieved.

As shown in FIG. 2, in one embodiment, the rail assembly 400 is further provided with a dust suction hole 402 communicating with the shielding chamber 401; the milling machine that accurately measures the amount of movement also includes a seal that engages the dust extraction aperture 402 in an opening and closing manner.

The sealing element is in open-close fit with the dust collection hole 402, that is, the sealing element can control the opening and closing of the dust collection hole 402.

Specifically, the sealing member is a sealing plug, which is detachably inserted into the dust suction hole 402, and the sealing plug can be pulled out from the dust suction hole 402.

Under normal conditions, the sealing member seals the suction hole 402 to prevent external contaminants from entering the protection chamber 401 through the suction hole 402. And because protection chamber 401 can't accomplish hundreds of sealed, consequently, use the long time at the milling machine after, still probably have some pollutants in the protection chamber 401, so, when the pollutant in the protection chamber 401 piles up to certain degree, can pull out the sealing member, then utilize devices such as air pump to pass through dust absorption hole 402 with the pollutant suction in the protection chamber 401, avoid the pollutant in the protection chamber 401 to shelter from grating chi 510 and influence measuring accuracy.

In one embodiment, the milling machine that accurately measures the amount of movement further includes a display screen that is communicatively coupled to the read head 520. So, the vertical that reading head 520 read can show through the display screen to make things convenient for operating personnel to obtain work platform's vertical displacement volume.

Specifically, the reading head 520 and the display screen may be connected in communication in a wireless or wired manner.

In the milling machine for accurately measuring the movement amount, as shown in fig. 1 to 4, when the table 320 is driven by the elevating driver 310 to move vertically, the reading head 520 can also move vertically with the table 320, so as to obtain the vertical displacement of the table 320 through the grating ruler 510. In addition, because the grating scale 510 is arranged in the protection cavity 401 formed by matching the vertical guide rail 420 and the fixing plate 410, the vertical guide rail 420 and the fixing plate 410 can protect the grating scale 510, and the grating scale 510 is prevented from being easily damaged due to exposure.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A milling machine for accurately measuring an amount of movement, comprising:

a body;

the guide rail assembly is arranged on one side of the machine body and comprises a fixed plate fixedly connected with the machine body and a vertical guide rail connected with the fixed plate, one side of the vertical guide rail is matched with the fixed plate to form a protective cavity, the other side of the vertical guide rail is provided with a vertical guide groove, and the vertical guide rail is further provided with a vertical channel communicated with the protective cavity and the vertical guide groove;

the workbench assembly comprises a lifting driving piece and a workbench in driving connection with the lifting driving piece, and the workbench is in guiding fit with the vertical guide groove; and

the displacement measurement assembly comprises a grating ruler arranged in the protective cavity and a reading head connected with the workbench, at least part of the reading head is positioned in the vertical channel, and the reading head is arranged opposite to the grating ruler.

2. The milling machine for accurately measuring the amount of movement according to claim 1, further comprising a connecting member, both ends of which are connected to the reading head and the table, respectively.

3. The machine of claim 2, wherein the vertical passageway includes a first side wall and a second side wall spaced apart and opposed in a lateral direction, the first side wall being formed with a first locating projection and the second side wall being formed with a second locating projection;

4. The milling machine for accurately measuring the amount of movement of claim 3, wherein the linkage is an elastic linkage capable of applying a force to the reading head such that the third locating boss has a tendency to move toward the first locating boss and the fourth locating boss has a tendency to move toward the second locating boss.

5. The milling machine for accurately measuring the movement according to claim 4, wherein the elastic connecting member comprises a sleeve, a first connecting shaft, a second connecting shaft and an elastic member, the first connecting shaft and the second connecting shaft are movably inserted into the sleeve from two ends of the sleeve respectively, the elastic member is arranged in the sleeve and abutted between the first connecting shaft and the second connecting shaft, one end of the first connecting shaft, which is far away from the second connecting shaft, extends out of the sleeve and is fixedly connected with the reading head, and one end of the second connecting shaft, which is far away from the first connecting shaft, extends out of the sleeve and is fixedly connected with the worktable.

6. The milling machine for accurately measuring the movement amount according to claim 5, wherein the elastic member is an elastic ball.

7. The milling machine for accurately measuring the movement according to claim 2, further comprising a dust-proof member, wherein the dust-proof member is arranged in the vertical channel and is positioned at one side of the reading head close to the workbench, the dust-proof member is provided with a vertical avoiding channel, and the connecting member is movably arranged in the vertical avoiding channel in a penetrating manner.

8. The milling machine for accurately measuring the movement according to claim 1, wherein the guide rail assembly is further provided with a dust suction hole communicating with the protection chamber;

the milling machine for accurately measuring the movement amount further comprises a sealing element which is matched with the dust suction hole in an opening and closing mode.

9. The milling machine for accurately measuring the amount of movement according to claim 8, wherein the sealing member is a sealing plug which is detachably inserted into the dust suction hole.

10. The milling machine for accurately measuring the amount of movement of claim 1, further comprising a display screen communicatively coupled to the read head.