CN216730894U

CN216730894U - Shaft arm protection device for machine tool

Info

Publication number: CN216730894U
Application number: CN202122854859.7U
Authority: CN
Inventors: 李俊豪
Original assignee: Shenzhen Yiyuxing Plastic Hardware Electronics Co ltd
Current assignee: Shenzhen Yiyuxing Plastic Hardware Electronics Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-06-14
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a shaft arm protection device for a machine tool, which comprises a protection cylinder, wherein a shaft arm body is arranged in the protection cylinder, an arc-shaped plate is pushed to abut against the surface of the shaft arm body by the elasticity of a spring, thereby fixing the protective cylinder on the surface of the shaft arm body to prevent the shaft arm body from being collided, sleeving a spring on the surface of the support rod, the other end of the supporting rod is provided with a pull ring, the lower part of the surface of the protective cylinder is provided with a plurality of groups of pin shaft seats, the interior of each pin shaft seat is movably connected with a control rod, the upper end of the control rod penetrates through the corresponding pull ring, the surface of the control rod is provided with an inclined plate, the lower part of the surface of the protective cylinder is provided with threads, the screw surface spiro union has the nut, the nut surface has cup jointed the locking section of thick bamboo, the locking section of thick bamboo supports on the inclined plane of swash plate, twists the increase of distance between the locking section of thick bamboo control arc, and compatible different shaft arm bodies use the forced air cooling heat dissipation more convenient.

Description

Shaft arm protection device for machine tool

Technical Field

The utility model relates to the technical field of numerical control machine tools, in particular to a shaft arm protection device for a machine tool.

Background

Numerical control machine tool journal arm refers to and drives the rotatory axle of work piece or cutter on the machine tool, and the journal arm is after long-time the use, and surface temperature risees, leads to the journal arm radiating effect relatively poor because of the journal arm is made for the metal material, and can't conveniently reduce surface temperature to the journal arm is applied to mechanical workpiece processing usually, and when using, the surface easily receives the striking, leads to the journal arm outside anticollision effect relatively poor.

Therefore, the publication number is CN213004122U, which discloses a numerical control machine tool shaft arm protection device, which comprises a shaft arm, wherein a main shaft is installed at the lower end of the shaft arm, a water tank is installed at one side of the shaft arm, and a hose penetrates through one side of the water tank.

To foretell digit control machine tool shaft arm protector, it can reduce the main shaft temperature through water-cooling heat dissipation, uses protection frame and spring to improve crashproof effect, still exists following not enoughly: it passes through the rotation bearing installation protection frame, to the armshaft, needs corresponding mounting hole, if the armshaft lacks the mounting hole then can't install the protection frame, and compatibility is relatively poor, uses the water-cooling heat dissipation, when water spouts the main shaft on the drippage, need collect water, uses comparatively inconveniently.

In view of the above, the present invention provides a shaft arm protection device for a machine tool, which is improved in view of the conventional structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shaft arm protection device for a machine tool, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an axle arm protection device for a machine tool comprises a protection cylinder, wherein an axle arm body is arranged in the protection cylinder, a plurality of groups of support rods penetrating through the protection cylinder are arranged on the surface of the protection cylinder, one end, close to the axle arm body, of each support rod is movably connected with the axle arm body, at least six groups of support rods are arranged, the support rods are arranged in a rectangular shape, the support rods are connected with the protection cylinder in a sliding mode, and the rectangular support rods can prevent the support rods from rotating;

the surface of the supporting rod is sleeved with a spring, the spring is positioned in the protective cylinder, one end of the supporting rod, which is close to the shaft arm body, is fixedly connected with an arc-shaped plate, the left end and the right end of the spring respectively abut against the inner wall of the protective cylinder and the surface of the arc-shaped plate, the other end of the supporting rod is provided with a pull ring, the lower part of the surface of the protective cylinder is provided with a plurality of groups of pin shaft seats, the inner parts of the pin shaft seats are movably connected with control rods, the upper ends of the control rods penetrate through the corresponding pull rings, the upper ends of the control rods are fixedly connected with anti-dropping balls, the diameters of the anti-dropping balls are larger than those of the pull rings, and the diameters of the pull rings are larger than those of the control rods, so that the control rods can move in the pull rings within a certain range;

the surface of the control rod is provided with an inclined plate, the lower part of the surface of the protective cylinder is provided with threads, the surface of the threads is in threaded connection with a nut, the surface of the nut is sleeved with a locking cylinder, the locking cylinder abuts against the inclined surface of the inclined plate, and a certain gradient is arranged at the contact point of the locking cylinder and the inclined plate, so that the control rod can conveniently slide along the inclined plate.

Further, the arc surface is equipped with the silica gel pad that supports on the surface of axle arm body, and the silica gel pad has certain tension, pliability, can be better with the laminating of axle arm body, and the silica gel pad can avoid arc and axle arm body rigid contact, can protect the axle arm body not worn and torn.

Furthermore, a limiting groove is formed in the upper portion of the surface of the protective cylinder, and a limiting block matched with the limiting groove in size is sleeved on the surface of the supporting rod.

Furthermore, three sets of cooling fans are further installed on the surface of the protection cylinder, the air outlet of the air heater penetrates through the protection cylinder, and the air outlet is flush with the inner wall of the protection cylinder, so that the air flow in the protection cylinder can be accelerated, and the shaft arm body can dissipate heat.

Furthermore, the lower end face of the protective cylinder is provided with a rubber protective cylinder, and when a drill bit on the shaft arm body processes a workpiece, the fragments splash onto the rubber protective cylinder, so that the fragments can be prevented from splashing outwards.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the arc-shaped plate is pushed to abut against the surface of the shaft arm body through the elastic force of the spring, so that the protective cylinder is fixed on the surface of the shaft arm body, the shaft arm body is prevented from being collided, when the locking cylinder is screwed, the locking cylinder moves upwards and extrudes the inclined plate, the inclined plate drives the control rod to rotate, the upper end of the control rod drives the support rod through the pull ring, the distance between the arc-shaped plates is increased, the shaft arm bodies with different sizes can be clamped and fixed in the face of the shaft arm bodies with different sizes, different shaft arm bodies are adapted, the compatibility is good, the shaft arm bodies are cooled by using the cooling fan, the trouble of water cooling is avoided, and the use is more convenient.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a top cross-sectional view of the shield cartridge of the present invention attached to a support bar.

In the figure: 1. a shaft arm body; 2. a protective cylinder; 3. a strut; 4. a spring; 5. an arc-shaped plate; 6. a limiting groove; 7. a limiting block; 8. a pull ring; 9. a pin shaft seat; 10. a control lever; 11. anti-drop balls; 12. a sloping plate; 13. a locking cylinder; 14. a nut; 15. a thread; 16. a rubber protective cylinder; 17. a silica gel pad; 18. a heat radiation fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an axle arm protection device for a machine tool comprises a protection cylinder 2, wherein an axle arm body 1 is arranged inside the protection cylinder 2, the protection cylinder 2 surrounds the surface of the axle arm body 1, the axle arm body 1 can be prevented from being collided, a plurality of groups of supporting rods 3 penetrating through the protection cylinder 2 are arranged on the surface of the protection cylinder 2, one end, close to the axle arm body 1, of each supporting rod 3 is movably connected with the axle arm body 1, a spring 4 is sleeved on the surface of each supporting rod 3, the spring 4 is located inside the protection cylinder 2, and under a natural state, the elastic force of the spring 4 pushes an arc-shaped plate 5 to abut against the surface of the axle arm body 1 so as to fix the protection cylinder 2;

the other end of the supporting rod 3 is provided with a pull ring 8, the pull ring 8 can control the supporting rod 3 to slide, the lower part of the surface of the protective cylinder 2 is provided with a plurality of groups of pin shaft seats 9, the pin shaft seats 9 are movably connected with a control rod 10, the control rod 10 is provided with a certain bevel, the control rod 10 can be conveniently stirred, and the protective cylinder 2 is prevented from influencing the rotation of the control rod 10;

the upper end of the control rod 10 penetrates through the corresponding pull ring 8, the inclined plate 12 is arranged on the surface of the control rod 10, threads 15 are arranged on the lower portion of the surface of the protective barrel 2, a nut 14 is screwed on the surface of each thread 15, a locking barrel 13 is sleeved on the surface of each nut 14, the locking barrel 13 abuts against the inclined plane of the inclined plate 12, the nuts 14 can be driven to rotate through the locking barrels 13, and then the nuts 14 are fixed on the surfaces of the threads 15.

During specific implementation, branch 3 sets up six groups at least, and branch 3 is the rectangle setting, and six group's branch 3 is better to the fixed effect of countershaft arm body 1.

During specific implementation, branch 3 is close to one end fixedly connected with arc 5 of

shaft arm body

1, 5 surfaces of arc are equipped with and support the silica gel pad 17 on shaft arm body 1 surface, and the frictional force on silica gel pad 17 surface is great, can prevent that silica gel pad 17 from sliding downwards.

When the protection device is used, the upper part of the surface of the protection barrel 2 is provided with the limiting groove 6, the surface of the support rod 3 is sleeved with the limiting block 7 matched with the size of the limiting groove 6, when the protection device is not used, the limiting block 7 can be clamped into the limiting groove 6, the size of the protection device is reduced, and the transportation is convenient.

During specific implementation, three sets of cooling fans 18 are further installed on the surface of the protective cylinder 2, the air outlet of the cooling fan 18 penetrates through the protective cylinder 2, and the cooling efficiency of the three sets of cooling fans 18 to the shaft arm body 1 is higher.

During specific implementation, the upper end of the control rod 10 is fixedly connected with the anti-dropping ball 11, the diameter of the anti-dropping ball 11 is larger than that of the pull ring 8, and the anti-dropping ball 11 can prevent the control rod 10 from dropping from the pull ring 8.

In specific implementation, the lower end face of the protection cylinder 2 is provided with a rubber protection cylinder 16, and the rubber protection cylinder 16 can avoid fragments from splashing.

Specifically, when in use, the protection cylinder 2 is fixed, the locking cylinder 13 is screwed, the locking cylinder 13 drives the nut 14 to rotate, the nut 14 rotates along the thread 15 and moves, the locking cylinder 13 moves upwards and extrudes the inclined plate 12, the inclined plate 12 drives the control rod 10 to rotate around the pin shaft seat 9, the inclined plate 12 drives the corresponding pull ring 8 to move, the pull ring 8 drives the support rod 3 to move, the arc-shaped plate 5 is close to the protection cylinder 2, the space between the arc-shaped plates 5 is increased, then the shaft arm body 1 is inserted into the space between the arc-shaped plates 5, the position is adjusted, the locking cylinder 13 is screwed reversely, the locking cylinder 13 no longer supports against the inclined plate 12, the arc-shaped plates 5 support against the surface of the shaft arm body 1 under the elastic force of the spring 4, the silica gel pad 17 is extruded to deform, the silica gel pad 17 is completely attached to the surface of the shaft arm body 1, at the moment, the protection cylinder 2 is fixed around the shaft arm body 1, and performing anti-collision protection on the shaft arm body 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an axle arm protector for lathe, includes protection section of thick bamboo (2), its characterized in that: the inner part of the protection cylinder (2) is provided with an axial arm body (1), the surface of the protection cylinder (2) is provided with a plurality of groups of supporting rods (3) penetrating through the protection cylinder (2), one ends of the supporting rods (3) close to the axial arm body (1) are movably connected with the axial arm body (1), the surface of each supporting rod (3) is sleeved with a spring (4), the springs (4) are positioned inside the protection cylinder (2), the other ends of the supporting rods (3) are provided with pull rings (8), the lower part of the surface of the protection cylinder (2) is provided with a plurality of groups of pin shaft seats (9), the inner parts of the pin shaft seats (9) are movably connected with control rods (10), the upper ends of the control rods (10) penetrate through corresponding pull rings (8), the surface of each control rod (10) is provided with inclined plates (12), the lower part of the surface of the protection cylinder (2) is provided with threads (15), and the surface of each thread (15) is screwed with a nut (14), the surface of the nut (14) is sleeved with a locking barrel (13), and the locking barrel (13) abuts against the inclined plane of the inclined plate (12).

2. The shaft-arm protector for a machine tool according to claim 1, wherein: the supporting rods (3) are at least provided with six groups, and the supporting rods (3) are arranged in a rectangular shape.

3. The shaft-arm protector for a machine tool according to claim 1, wherein: one end fixedly connected with arc (5) that branch (3) are close to shaft arm body (1), arc (5) surface is equipped with and supports silica gel pad (17) on shaft arm body (1) surface.

4. The shaft-arm protector for a machine tool according to claim 1, wherein: the upper part of the surface of the protective cylinder (2) is provided with a limiting groove (6), and the surface of the supporting rod (3) is sleeved with a limiting block (7) matched with the limiting groove (6) in size.

5. The shaft-arm protector for a machine tool according to claim 1, wherein: three groups of heat dissipation fans (18) are further mounted on the surface of the protective barrel (2), and an air outlet of each heat dissipation fan (18) penetrates through the protective barrel (2).

6. The shaft-arm protector for a machine tool according to claim 1, wherein: the anti-dropping device is characterized in that the upper end of the control rod (10) is fixedly connected with an anti-dropping ball (11), and the diameter of the anti-dropping ball (11) is larger than that of the pull ring (8).

7. The shaft-arm protector for a machine tool according to claim 1, wherein: the lower end face of the protection cylinder (2) is provided with a rubber protection cylinder (16).