CN210878852U

CN210878852U - Protective cover of numerical control machine tool

Info

Publication number: CN210878852U
Application number: CN201921634833.8U
Authority: CN
Inventors: 陈思敏
Original assignee: Kunshan Ketian Precision Machinery Co ltd
Current assignee: Kunshan Ketian Precision Machinery Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-30
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a digit control machine tool protection casing relates to digit control machine tool technical field, aims at solving the inconvenient problem of dismantling of current digit control machine tool protection casing. The technical scheme is characterized in that mounting holes are formed in the side walls, facing the machine tool protective door, of the workbench and the fixed block, one ends of the mounting rods penetrate through the mounting holes and are hemispherical, abdicating grooves matched with the corresponding mounting rods in a clamping and embedding manner are formed in the inner side walls of the protective units at the two ends of the protective device, and elastic pieces for preventing the mounting rods from being separated from the mounting holes are arranged in the mounting holes; the top of workstation and fixed block all is provided with the locating hole that communicates with the mounting hole, and the top of the protection unit at protector both ends all runs through and is provided with the guiding hole that is linked together with the locating hole, inserts jointly in locating hole and the guiding hole and is equipped with the locating lever. When the protective device needs to be detached, the positioning rod is firstly pulled, and after the positioning rod is separated from the guide hole, the protective device can be taken down by pulling the protective device upwards, so that the effect of convenient detachment is achieved.

Description

Protective cover of numerical control machine tool

Technical Field

The utility model belongs to the technical field of the digit control machine tool technique and specifically relates to a digit control machine tool protection casing is related to.

Background

With the continuous development of the numerical control machine tool industry, the requirements of the processing industry on various aspects of the numerical control machine tool are higher and higher. The protection device of important parts on the numerical control machine tool is very important, and if the protection device of some important parts cannot play a good protection role, the processing precision of the numerical control machine tool and even the service life of the numerical control machine tool can be influenced. The protective cover is a protective device used for protecting a moving shaft screw rod, a bearing, a motor and a sliding guide rail of a numerical control machine tool.

The prior protective cover of the numerical control machine tool with the authorization notice number of CN205057662U comprises more than two sections of protective cover units, wherein adjacent protective cover units are nested with each other and are connected through a sliding device, so that the adjacent protective cover units can slide with each other, the protective cover units are rectangular, and the protective cover units gradually become smaller from the protective cover unit with the largest end part; the sliding device comprises a sliding rail and a sliding block, the sliding rail is arranged on the machine tool, the sliding block is arranged on the protective cover unit, and the protective cover unit can slide on the sliding rail. A first fixing plate is welded on the first section of protective cover unit and is connected with the workbench; the last protective cover unit is welded with a second fixing plate, the second fixing plate is connected with a protective cover support, and the protective cover support is fixed on the saddle. When each shaft of the machine tool performs feed motion, each section of the protective cover performs extension and contraction motion on the sliding rail.

However, the above prior art solutions have the following drawbacks: when the protective cover does feed motion along with the three shafts of the machine tool, the sliding surface is always kept in a sealing state, and after the protective cover is used for a long time, the sliding surface of the protective cover is abraded, so that the protective cover needs to be replaced. When the protection cover is replaced, the worker takes down the fixed plate and the bolts between the workbench and the protection cover bracket, and the bolts need to be taken down by one worker, so that the protection cover is inconvenient to detach.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a digit control machine tool protection casing, it has the effect of convenient dismantlement.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a protective cover of a numerical control machine tool comprises protective devices arranged at two ends of a workbench along the length direction of the machine tool, wherein each protective device comprises a plurality of protective units which are sequentially arranged along the length direction of the machine tool, each protective unit is in an inverted U shape, two adjacent protective units are mutually nested and can slide relatively, a connecting structure for fixing the protective units is arranged between the two adjacent protective units, a working cavity is arranged in the machine tool, and fixed blocks are arranged on two side walls of the working cavity along the length direction of the machine tool in a sliding manner along the width direction of the machine tool; mounting holes are formed in the side walls, facing the machine tool protective door, of the workbench and the fixed block, mounting rods are slidably arranged in the mounting holes, one ends of the mounting rods penetrate through the mounting holes and are hemispherical, abdicating grooves matched with the corresponding mounting rods in a clamping and embedding manner are formed in the inner side walls of the protective units at the two ends of the protective device, and elastic pieces for preventing the mounting rods from being separated from the mounting holes are arranged in the mounting holes; the top ends of the workbench and the fixed block are respectively provided with a positioning hole communicated with the corresponding mounting hole, the top ends of the protection units at the two ends of the protection device are respectively provided with a guide hole communicated with the corresponding positioning hole in a penetrating manner, the positioning holes and the corresponding guide holes are internally provided with positioning rods in an inserted manner, and the positioning rods are abutted against the corresponding mounting rods.

Through adopting above-mentioned technical scheme, insert the in-process of establishing at protector, protector's inside wall offsets with the installation pole, under the hemispherical guide effect of installation pole, the installation pole is to keeping away from protector's one end removal and locating lever offset, and when the groove of stepping down and installation pole correspond, the installation pole stretches into the inslot of stepping down under the effect of elastic component, and the installation pole no longer removes to firmly fix protector. When the protective device needs to be detached, the positioning rod is firstly lifted, the protective device is lifted upwards after the positioning rod is separated from the guide hole, the mounting rod is separated from the abdicating groove under the hemispherical guide effect of the mounting rod, and the protective device can be taken down by continuing to lift upwards, so that the effect of convenient detachment is achieved.

The utility model discloses further set up to: the mounting rod is provided with a limiting ring, the limiting ring is located in the mounting hole, the elastic piece comprises a spring, one end of the spring is connected with the limiting ring, and the other end of the spring is connected with the side wall of the mounting hole.

Through adopting above-mentioned technical scheme, inserting the in-process of establishing protector, protector's inside wall offsets with the installation pole, and the installation pole removes to the one end of keeping away from protector, and at this moment, the spring is compressed. When the groove of stepping down corresponded with the installation pole, the installation pole resumes to initial condition under the elastic force of spring to make the installation pole fix in the groove of stepping down, improved work efficiency.

The utility model discloses further set up to: the bottom end of the positioning rod is hemispherical.

Through adopting above-mentioned technical scheme, the bottom of locating lever is hemispherical, makes the locating lever have the effect of direction, is convenient for pass the guiding hole with the locating lever and inserts in the locating hole to the effect of the operation of being convenient for has been reached.

The utility model discloses further set up to: the corresponding locating lever of workstation is worn out the guiding hole and is connected with the guide ring, the corresponding locating lever of fixed block is worn out the guiding hole and is connected with the guide bar, the guide ring is slided the cover and is established on the guide bar.

Through adopting above-mentioned technical scheme, at the in-process of dismantling protector, to lifting upward and pulling the guide bar and can make two locating levers break away from corresponding guiding hole to further convenient to detach's effect has been reached.

The utility model discloses further set up to: a plurality of balls are distributed on the inner side wall of the guide ring along the circumferential direction of the inner side wall.

By adopting the technical scheme, the corresponding positioning rod on the workbench moves along with the workbench in the moving process, so that the guide ring moves on the guide rod. Be provided with a plurality of balls on the inside wall of guide ring, can reduce the resistance between guide ring and the guide bar to it is more smooth to make the guide ring slide on the guide bar. On the other hand, the friction force generated between the guide ring and the guide rod is reduced, so that the guide ring and the guide rod can be prevented from being abraded due to mutual contact between the guide ring and the guide rod.

The utility model discloses further set up to: and a limiting block is arranged at one end of the guide rod, which is far away from the corresponding fixed block.

Through adopting above-mentioned technical scheme, after dismantling protector, the stopper can restrict the position of guide ring and the corresponding locating lever of workstation, can avoid losing of guide ring to the cost has been saved.

The utility model discloses further set up to: the side wall of the working cavity along the length direction of the machine tool is provided with a sliding groove, the fixing block is arranged in the sliding groove in a sliding mode, the side wall of the sliding groove along the height direction of the machine tool is provided with a limiting groove, and the fixing block is provided with a clamping block which is matched with the limiting groove in a clamping and embedding mode.

Through adopting above-mentioned technical scheme, the fixture block is located the spacing inslot for the fixed block can only slide along the width direction of lathe in the spout, has further increased the connection stability between fixed block and the spout.

The utility model discloses further set up to: the protection unit is characterized in that a rubber pad is arranged on the inner side wall of the protection unit along the circumferential direction of the inner side wall, and the rubber pad extends to one end, far away from the workbench, of the protection unit.

Through adopting above-mentioned technical scheme, be provided with the rubber pad on the inside wall of protection unit, can prevent that iron fillings and coolant liquid from getting into the space between the protection unit and influencing the slip between the protection unit. On the other hand, can avoid iron fillings and coolant liquid to get into in the protector and influence the life of guide rail.

To sum up, the utility model discloses a beneficial technological effect does:

1. the installation rod, the positioning rod and the abdication groove are arranged, so that the effect of convenient disassembly is achieved;

2. the guide rod and the guide ring are arranged, so that the effect of further facilitating disassembly is achieved;

3. through the setting of rubber pad, can prevent that iron fillings and coolant liquid from getting into the space between the protection unit and influencing the slip between the protection unit.

Drawings

Fig. 1 is a schematic view of the overall structure of a protective cover of a numerically-controlled machine tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another numerically-controlled machine tool protective cover according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a sectional view of a protection unit and a fixing block according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a cross-sectional view of a guide ring according to an embodiment of the present invention.

In the figure, 1, a workbench; 11. a working chamber; 12. a chute; 13. a fixed block; 14. a limiting groove; 15. a clamping block; 2. a guard; 21. a protection unit; 22. mounting holes; 221. connecting holes; 222. a sliding hole; 223. a limiting hole; 23. mounting a rod; 24. a yielding groove; 25. a limiting ring; 26. a spring; 3. positioning holes; 31. a guide hole; 32. positioning a rod; 33. a guide ring; 331. a ball bearing; 34. a guide bar; 35. a limiting block; 4. and (7) a rubber pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a digit control machine tool protection casing, including setting up at workstation 1 along the protector 2 at lathe length direction both ends, protector 2 includes a plurality of protective unit 21 that set gradually along lathe length direction, and in this embodiment, protector 2 comprises three protective unit 21 and protective unit 21 all is the shape of falling the U. Two adjacent protection units 21 are nested with each other and can slide relatively, and a connecting structure for fixing the protection units 21 is arranged between the two adjacent protection units 21. Specifically, the connecting structure is a scissor type telescopic structure, the scissor type telescopic structure is formed by connecting four rod pieces with the same length end to form a parallelogram, and the connecting position of the four rod pieces is a hinged structure. The inner side wall of the protection unit 21 is provided with a rubber pad 4 along the circumferential direction of the inner side wall, and the rubber pad 4 extends to one end of the protection unit 21 far away from the workbench 1.

Referring to fig. 2 and 3, a working chamber 11 (refer to fig. 1) is arranged in the machine tool, sliding grooves 12 are arranged on two side walls of the working chamber 11 along the length direction of the machine tool, a fixing block 13 is arranged in the sliding grooves 12 in a sliding manner along the width direction of the machine tool, limiting grooves 14 are arranged on two side walls of the sliding grooves 12 along the height direction of the machine tool, and a clamping block 15 matched with the limiting grooves 14 in a sliding manner is arranged on the fixing block 13.

Referring to fig. 4 and 5, the top ends of the workbench 1 (see fig. 2) and the fixed block 13 are provided with positioning holes 3, the top ends of the protection units 21 at the two ends of the protection device 2 are provided with guide holes 31 communicated with the corresponding positioning holes 3 in a penetrating manner, the positioning holes 3 and the corresponding guide holes 31 are inserted with positioning rods 32 together, and the bottom ends of the positioning rods 32 are hemispherical. The positioning rod 32 corresponding to the worktable 1 penetrates through the corresponding guide hole 31 to be connected with a guide ring 33, the positioning rod 32 corresponding to the fixed block 13 penetrates through the corresponding guide hole 31 to be connected with a guide rod 34, and the guide ring 33 is slidably sleeved on the guide rod 34. The positioning rods 32 on the protection units 21 at the two ends of the protection device 2 are both located at one end of the top surface of the corresponding protection unit 21 away from the middle protection unit 21, so that the sliding of the protection device 2 is not affected.

Referring to fig. 4 and 5, mounting holes 22 communicated with corresponding positioning holes 3 are formed in the side walls, facing the machine tool protective door, of the workbench 1 (see fig. 2) and the fixing block 13, the mounting holes 22 include a connecting hole 221, a sliding hole 222 and a limiting hole 223 which are sequentially arranged from inside to outside, a mounting rod 23 is arranged in the mounting holes 22 in a sliding mode, one end of the mounting rod 23 penetrates through the limiting hole 223 and is hemispherical, and the other end of the mounting rod 23 extends into the connecting hole 221 to abut against the positioning rod 32. Fixedly connected with spacing ring 25 on the lateral wall of installation pole 23, and spacing ring 25 is located mounting hole 22, is provided with the elastic component in the hole 222 that slides, and in this embodiment, the elastic component is spring 26, and spring 26 cover is established on installation pole 23, and the one end of spring 26 is connected with spacing ring 25, and the other end of spring 26 and the one end that the hole 222 that slides is close to locating lever 32 are connected. The inner side walls of the protection units 21 at the two ends of the protection device 2 are provided with abdicating grooves 24 which are matched with the corresponding mounting rods 23 in a clamping and embedding manner.

Referring to fig. 6, a plurality of balls 331 are uniformly distributed on the inner sidewall of the guide ring 33 along the circumferential direction thereof, and the balls 331 are embedded on the inner sidewall of the guide ring 33 and abut against the outer sidewall of the guide rod 34. One end of the guide rod 34 away from the corresponding fixed block 13 is provided with a limit block 35.

The implementation principle of the embodiment is as follows:

when the protection device 2 needs to be installed, the protection device 2 is firstly inserted on the fixing block 13, and then the protection device 2 is connected with the workbench 1. In the process that the protection device 2 is inserted on the fixed block 13, the protection unit 21 at one end of the protection device 2 close to the fixed block 13 abuts against the inner wall of the working cavity 11 and moves downwards to be inserted on the fixed block 13, when the protection unit 21 is inserted, the inner side wall of the protection unit 21 abuts against the hemispherical end of the installation rod 23, and the installation rod 23 moves towards one end far away from the protection device 2 under the guiding effect of the hemispherical end of the installation rod 23. When the abdicating groove 24 corresponds to the mounting rod 23, the mounting rod 23 extends into the abdicating groove 24 under the action of the spring 26, at this time, the mounting rod 23 is not moved any more, thereby firmly fixing the protection device 2 and the fixing block 13.

After the protection device 2 is inserted on the fixed block 13, the protection unit 21 at one end of the protection device 2 close to the workbench 1 is pulled towards the workbench 1, and the installation rod 23 in the protection unit 21 is inserted into the corresponding abdicating groove 24. After the protection device 2 is installed, the positioning rods 32 penetrate through the corresponding guide holes 31 and extend into the corresponding positioning holes 3 to abut against the corresponding mounting rods 23, so that the mounting rods 23 are firmly limited, and the protection device 2 is firmly fixed.

When the protection device 2 needs to be disassembled, the guide rod 34 is firstly pulled upwards to make the two positioning rods 32 separated from the corresponding guide holes 31 together, and then the protection device 2 is pulled upwards to be disassembled. In the process of lifting the protection device 2, under the hemispherical guiding action of the installation rod 23, one end of the installation rod 23, which is dirty and far away from the protection device 2, moves and extends into the positioning hole 3, and meanwhile, the installation rod 23 is separated from the abdicating groove 24. The protective device 2 can be taken down by continuously lifting the protective device 2 upwards, so that the effect of convenient disassembly is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a digit control machine tool protection casing, is including setting up protector (2) at workstation (1) along lathe length direction both ends, protector (2) are including a plurality of protective unit (21) that set gradually along lathe length direction, protective unit (21) are the shape of falling U, adjacent two nested each other between protective unit (21) and can the relative slip, adjacent two be provided with the connection structure of fixed protective unit (21) between protective unit (21), its characterized in that: a working cavity (11) is arranged in the machine tool, and fixed blocks (13) are arranged on two side walls of the working cavity (11) along the length direction of the machine tool in a sliding manner along the width direction of the machine tool; mounting holes (22) are formed in the side walls, facing the machine tool protective door, of the workbench (1) and the fixing block (13), mounting rods (23) are arranged in the mounting holes (22) in a sliding mode, one ends of the mounting rods (23) penetrate through the mounting holes (22) and are hemispherical, abdicating grooves (24) matched with the corresponding mounting rods (23) in a clamping and embedding mode are formed in the inner side walls of the protective units (21) at the two ends of the protective device (2), and elastic pieces for preventing the mounting rods (23) from being separated from the mounting holes (22) are arranged in the mounting holes (22); the top of workstation (1) and fixed block (13) all is provided with locating hole (3) that are linked together with corresponding mounting hole (22), the top of the protection unit (21) at protector (2) both ends all runs through and is provided with guiding hole (31) that are linked together with corresponding locating hole (3), it is equipped with locating lever (32) to insert jointly in locating hole (3) and the guiding hole (31) that correspond, locating lever (32) offset with corresponding installation pole (23).

2. The protective cover for the numerical control machine tool according to claim 1, wherein: the mounting rod (23) is provided with a limiting ring (25), the limiting ring (25) is located in the mounting hole (22), the elastic piece comprises a spring (26), one end of the spring (26) is connected with the limiting ring (25), and the other end of the spring (26) is connected with the side wall of the mounting hole (22).

3. The protective cover for the numerical control machine tool according to claim 1, wherein: the bottom end of the positioning rod (32) is hemispherical.

4. The protective cover for the numerical control machine tool according to claim 3, wherein: the positioning rod (32) corresponding to the workbench (1) penetrates through the guide hole (31) and is connected with the guide ring (33), the positioning rod (32) corresponding to the fixing block (13) penetrates through the guide hole (31) and is connected with the guide rod (34), and the guide ring (33) is slidably sleeved on the guide rod (34).

5. The protective cover for the numerical control machine tool according to claim 4, wherein: a plurality of balls (331) are distributed on the inner side wall of the guide ring (33) along the circumferential direction of the inner side wall.

6. The protective cover for the numerical control machine tool according to claim 4, wherein: and a limiting block (35) is arranged at one end of the guide rod (34) far away from the corresponding fixed block (13).

7. The protective cover for the numerical control machine tool according to claim 1, wherein: all be provided with spout (12) on working chamber (11) two lateral walls along lathe length direction, fixed block (13) slide and set up in spout (12), be provided with spacing groove (14) on spout (12) along the arbitrary lateral wall of lathe direction of height, be provided with on fixed block (13) and slide complex fixture block (15) with spacing groove (14).

8. The protective cover for the numerical control machine tool according to claim 1, wherein: be provided with rubber pad (4) along its circumference on the inside wall of protection unit (21), rubber pad (4) extend to protection unit (21) keep away from the one end of workstation (1).