CN219078829U

CN219078829U - Hoist device of milling cutter dish

Info

Publication number: CN219078829U
Application number: CN202222963150.5U
Authority: CN
Inventors: 汪磊; 李春娟; 陈铭; 谭永红
Original assignee: Shaanxi North Dynamic Co ltd
Current assignee: Shaanxi North Dynamic Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-05-26
Anticipated expiration: 2032-11-08

Abstract

The application discloses hoist device of milling cutter dish belongs to the machining field, and the degree of difficulty is great when having solved present milling cutter dish assembly, leads to the preparation time overlength before the bent axle milling process to and the higher problem of milling cutter dish's assembly risk. The concrete upper portion of hanging clamp is provided with the lifting hole, and the lifting hole is used for being connected with lifting device. The positioning step circle is fixed on the hanging clamp body. One end of the positioning step circle, which is away from the concrete end of the lifting clamp, is used for being connected with an inner hole of the milling cutter disc. The hoisting clamp is specifically provided with two fixing holes, the fixing holes are matched with threaded holes in the milling cutter disc, and the fixing bolts penetrate through the fixing holes and are connected with the threaded holes in the milling cutter disc. The adjusting screw is arranged on the lifting clamp body, and one end of the adjusting screw passes through the lifting clamp body and the positioning step circle and then contacts with the end face of the main shaft of the machine tool. The method and the device not only reduce the assembly difficulty of the milling cutter disc and shorten the preparation time before milling the crankshaft, but also reduce the assembly risk of the milling cutter disc.

Description

Hoist device of milling cutter dish

Technical Field

The application relates to the technical field of machining, in particular to a lifting device of a milling cutter disc.

Background

After the blank is manufactured, the main journal and the connecting rod journal of the crankshaft are required to be milled on a numerical control external milling machine of the crankshaft by utilizing a crankshaft milling cutter disc. Generally, during milling of a main journal and a connecting rod journal of a crankshaft, a milling cutter with a larger cutter disc diameter is selected, the weight of the milling cutter disc is concentrated between 100Kg and 300Kg, if the milling cutter disc is directly assembled on a main shaft of a machine tool by using a travelling crane, the difficulty coefficient is larger, the preparation time before the milling of the crankshaft is too long, and the risk is also very high, and even the life safety of an operator is endangered in serious cases.

Disclosure of Invention

According to the lifting device of the milling cutter disc, the problems that the difficulty is high, the preparation time before milling of a crankshaft is overlong, and the assembly risk of the milling cutter disc is high in the prior art are solved.

The embodiment of the utility model provides a lifting device of a milling cutter disc, which comprises a lifting clamp body, a positioning step circle, an adjusting screw and a fixing bolt, wherein the lifting clamp body is fixedly arranged on the lifting clamp body; the hoisting device comprises a hoisting clamp, a hoisting device and a hoisting device, wherein a hoisting hole is formed in the upper portion of the hoisting clamp body and is used for being connected with the hoisting device; the positioning step circle is fixed on the hanging clamp body; one end of the positioning step circle, which is far away from the hoisting clamp body, is used for being connected with an inner hole of a milling cutter disc; the hoisting clamp is specifically provided with two fixing holes, the fixing holes are matched with threaded holes in the milling cutter disc, and the fixing bolts penetrate through the fixing holes and are connected with the threaded holes in the milling cutter disc; the adjusting screw is arranged on the lifting clamp body, one end of the adjusting screw penetrates through the lifting clamp body and the positioning step circle to be in contact with the end face of the machine tool spindle, and the adjusting screw can drive the lifting clamp body to be far away from or close to the machine tool spindle.

In one possible implementation, the lifting device of the milling cutter disc further comprises a handle; the handle is fixed at one end of the adjusting screw, which is far away from the hanging clamp body.

In one possible embodiment, the handle is fixed to the adjusting screw by a fixing element.

In one possible implementation, the fixing comprises a screw.

In one possible implementation, the lifting device of the milling cutter disc further comprises a fastener; a plurality of mounting holes are formed in the positioning step circle; one fastener is arranged in each mounting hole; one end of the fastener penetrates through the positioning step circle and then is connected with the hoisting clamp body.

In one possible implementation, the fastener comprises a bolt.

One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:

the embodiment of the utility model provides a lifting device of a milling cutter disc. The concrete upper portion of hanging clamp is provided with the lifting hole, and the lifting hole is used for being connected with lifting device. The positioning step circle is fixed on the hanging clamp body. One end of the positioning step circle, which is away from the concrete end of the lifting clamp, is used for being connected with an inner hole of the milling cutter disc. The hoisting clamp is specifically provided with two fixing holes, the fixing holes are matched with threaded holes in the milling cutter disc, and the fixing bolts penetrate through the fixing holes and are connected with the threaded holes in the milling cutter disc. The adjusting screw is arranged on the lifting clamp body, one end of the adjusting screw passes through the lifting clamp body and the positioning step circle and then contacts with the end face of the machine tool spindle, and the adjusting screw can drive the lifting clamp body to be far away from or close to the machine tool spindle. In practical application, when the milling cutter disc needs to be installed, the milling cutter disc is fixed on the milling cutter disc lifting device, then the lifting device is used for lifting the mounting distance from the milling cutter disc lifting device to the machine tool spindle, then the milling cutter disc is assembled and positioned through the key groove on the milling cutter disc and the key groove on the machine tool spindle, so that the inner hole of the milling cutter disc is in clearance fit with the machine tool spindle, then the fixing bolt is loosened, so that the milling cutter disc is assembled on the machine tool spindle, and finally the lifting device is lifted away from the machine tool spindle by using the lifting device, so that the assembly difficulty of the milling cutter disc is reduced, the preparation time before the crankshaft milling is shortened, and the assembly risk of the milling cutter disc is also reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments of the present utility model will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a hoisting device provided with a milling cutter disc according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a lifting device with a milling cutter disc according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a lifting device of a milling cutter disc according to an embodiment of the present application;

fig. 4 is a schematic structural diagram II of a lifting device of a milling cutter disc provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a milling cutter disc according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a milling cutter disc according to an embodiment of the present disclosure.

Icon: 1-hanging the concrete; 1 a-a lifting hole; 2-positioning a step circle; 3-adjusting the screw; 4-milling cutter disc; 5-fixing bolts; 6-a machine tool spindle; 7-a handle; 8-fixing pieces; 9-fasteners.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

As shown in fig. 1 to 6, the embodiment of the utility model provides a lifting device of a milling cutter disc, which comprises a lifting clamp body 1, a positioning step circle 2, an adjusting screw 3 and a fixing bolt 5. The upper portion of the hoisting clamp body 1 is provided with a hoisting hole 1a, and the hoisting hole 1a is used for being connected with hoisting equipment. In practical application, when the lifting device of the milling cutter disc needs to be moved, the lifting device of the milling cutter disc is connected with lifting equipment such as a crane through the lifting hole 1a arranged on the lifting clamp body 1, so that the crane can drive the lifting device of the milling cutter disc to move, the safe movement of the milling cutter disc 4 is ensured, and the safety performance and reliability of the milling cutter disc 4 in the loading and unloading process are improved.

With continued reference to fig. 1, the positioning step circle 2 is fixed on the lifting clamp body 1. One end of the positioning step circle 2, which is far away from the lifting clamp body 1, is used for being connected with an inner hole of the milling cutter disc 4. When the milling cutter disc 4 is installed, the positioning step circle 2 is utilized to perform clearance fit with the inner hole of the milling cutter disc 4, and the clearance is 0.08-0.12 mm for centering and positioning. Fig. 5 and 6 show schematic structural views of the milling cutter disc 4. As shown in fig. 4, the distance L2 is greater than the sum of the radius of the milling cutter 4 and the safety distance, so as to prevent the lifting clamp body 1 from interfering with the cutter protecting shell of the milling cutter 4 when the milling cutter 4 is assembled; h is the total height of the lifting device of the milling cutter disc, the lifting device is required to be lightened as much as possible in design, L1 is the positioning depth of the positioning step circle 2, and the design is specifically based on the lengths of the inner holes of the main shaft 6 of the machine tool and the milling cutter disc 4. As shown in fig. 3, L is the distance between the two fixing bolts 5, and corresponds to the distance between the screw holes in the milling cutter head 4.

With continued reference to fig. 2, the lifting fixture body 1 is provided with two fixing holes, the fixing holes are matched with threaded holes on the milling cutter disc 4, and the fixing bolts 5 penetrate through the fixing holes and then are connected with the threaded holes on the milling cutter disc 4. Specifically, when the milling cutter disc 4 is assembled on the positioning step circle 2, two fixing bolts 5 are fixedly connected with two threaded holes on the milling cutter disc 4 through two fixing holes on the lifting clamp body 1, and then the fixing bolts 5 are screwed by using an inner hexagonal wrench so as to fix the milling cutter disc 4 and the lifting clamp body 1. After the milling cutter disc 4 is fixed, a lifting rope penetrates into a lifting hole 1a on a lifting clamp body 1 to connect the lifting clamp body 1 with lifting hooks on lifting equipment such as a crane, and then the lifting equipment such as the crane is started, the lifting equipment moves the lifting clamp body 1 to enable the lifting clamp body 1 to move to drive the milling cutter disc 4 to move to a safe distance of a machine tool spindle 6, then the lifting clamp body 1 is assembled and positioned through a key groove on the milling cutter disc 4 and a key groove on the machine tool spindle 6, an inner hole of the milling cutter disc 4 is in clearance fit with the machine tool spindle 6, and then two fixing bolts 5 connected with the lifting clamp body 1 and the milling cutter disc 4 are loosened, so that the milling cutter disc 4 is assembled on the machine tool spindle 6.

With continued reference to fig. 1, the adjusting screw 3 is disposed on the lifting clamp body 1, one end of the adjusting screw 3 passes through the lifting clamp body 1 and the positioning step circle 2 and then contacts with the end surface of the machine tool spindle 6, and the adjusting screw 3 rotates to drive the lifting clamp body 1 to be far away from or close to the machine tool spindle 6. Specifically, when the milling cutter disc 4 is to be detached from the machine tool spindle 6, a crane and other lifting equipment are started to move the lifting device of the milling cutter disc to the safe distance of the machine tool spindle 6, the positioning step circle 2 and the inner hole of the milling cutter disc 4 are centered and positioned for clearance assembly, then two fixing bolts 5 are fixedly connected with two threaded holes on the milling cutter disc 4 through two fixing holes on the lifting clamp body 1, then the fixing bolts 5 are tightened by using an inner hexagonal wrench to fix the milling cutter disc 4 with the lifting clamp body 1, then the adjusting screw 3 is in matched connection with threads on the lifting clamp body 1, then the adjusting screw 3 is rotated to lengthen the length of one end, close to the machine tool spindle 6, of the adjusting screw 3, so that the milling cutter disc 4 is smoothly separated from the machine tool spindle 6 by utilizing the pulling force action of the adjusting screw 3, and the milling cutter disc 4 is detached when the machine tool spindle 6 is completely separated from the position, so that the safety of the milling cutter disc 4 is improved.

The embodiment of the utility model provides a lifting device of a milling cutter disc, which comprises a lifting clamp body 1, a positioning step circle 2, an adjusting screw 3 and a fixing bolt 5. The upper portion of the hoisting clamp body 1 is provided with a hoisting hole 1a, and the hoisting hole 1a is used for being connected with hoisting equipment. The positioning step circle 2 is fixed on the lifting clamp body 1. One end of the positioning step circle 2, which is far away from the lifting clamp body 1, is used for being connected with an inner hole of the milling cutter disc 4. Two fixing holes are formed in the hoisting clamp body 1 and matched with threaded holes in the milling cutter disc 4, and fixing bolts 5 penetrate through the fixing holes and are connected with the threaded holes in the milling cutter disc 4. The adjusting screw 3 is arranged on the lifting clamp body 1, one end of the adjusting screw 3 passes through the lifting clamp body 1 and the positioning step circle 2 and then contacts with the end face of the machine tool spindle 6, and the adjusting screw 3 rotates to drive the lifting clamp body 1 to be far away from or close to the machine tool spindle 6. In practical application, when the milling cutter 4 needs to be installed, the milling cutter 4 is fixed on the milling cutter lifting device, then the lifting device is used for lifting the installation distance from the milling cutter lifting device to the machine tool spindle 6, then the milling cutter 4 is assembled and positioned with the key slot on the machine tool spindle 6 through the key slot on the milling cutter 4, so that the inner hole of the milling cutter 4 is in clearance fit with the machine tool spindle 6, then the fixing bolt 5 is loosened, so that the milling cutter 4 is assembled on the machine tool spindle 6, and finally the lifting device is lifted off the machine tool spindle 6 by using the lifting device, so that the assembly difficulty of the milling cutter 4 is reduced, the preparation time before the crankshaft milling is shortened, and the assembly risk of the milling cutter 4 is also reduced.

With continued reference to fig. 1, the milling cutter head lifting device further includes a handle 7. The handle 7 is fixed at the end of the adjusting screw 3, which is far away from the hanging clamp body 1. In practical application, the handle 7 is arranged, so that an operator can conveniently rotate the adjusting screw 3, and the operation difficulty is reduced.

With continued reference to fig. 4, the handle 7 is secured to the adjustment screw 3 by a securing member 8. Specifically, the handle 7 is fixed to the adjusting screw 3 by the fixing member 8, ensuring the reliability of the handle 7.

In practice, the fixing element 8 comprises a screw. Specifically, the fixing member 8 may be a bolt or the like. In comparison, the screw has the advantages of convenient assembly, easy material and low cost.

With continued reference to fig. 4, the milling cutter head lifting device further includes a fastener 9. A plurality of mounting holes are arranged on the positioning step circle 2. One fastener 9 is provided in each mounting hole. One end of the fastener 9 passes through the positioning step circle 2 and then is connected with the hoisting clamp body 1. As shown in fig. 2, the positioning step circle 2 and the hanging clamp body 1 are fixed by four fasteners 9. Of course, the positioning step circle 2 may be fixed to the hanging clamp body 1 by welding or the like. In comparison, the fastener 9 has the advantages of convenient installation and reliable fixation.

In practice, the fasteners 9 comprise bolts. Of course, the fastener 9 may be a screw or the like. In comparison, the bolt has the advantages of convenient installation and easy material acquisition.

In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims

1. The lifting device of the milling cutter disc is characterized by comprising a lifting clamp body (1), a positioning step circle (2), an adjusting screw (3) and a fixing bolt (5);

the upper part of the hoisting clamp body (1) is provided with a hoisting hole (1 a), and the hoisting hole (1 a) is used for being connected with hoisting equipment;

the positioning step circle (2) is fixed on the hoisting clamp body (1);

one end of the positioning step circle (2) which is far away from the hoisting clamp body (1) is used for being connected with an inner hole of the milling cutter disc (4);

the lifting fixture body (1) is provided with two fixing holes, the fixing holes are matched with threaded holes in the milling cutter disc (4), and the fixing bolts (5) penetrate through the fixing holes and are connected with the threaded holes in the milling cutter disc (4);

the adjusting screw (3) is arranged on the lifting clamp body (1), one end of the adjusting screw (3) penetrates through the lifting clamp body (1) and is contacted with the end face of the machine tool spindle (6) after positioning the step circle (2), and the adjusting screw (3) rotates to drive the lifting clamp body (1) to be far away from or close to the machine tool spindle (6).

2. The lifting device of a milling cutter disc according to claim 1, further comprising a handle (7);

the handle (7) is fixed at one end of the adjusting screw (3) which is far away from the hoisting clamp body (1).

3. A lifting device for a milling cutter disc according to claim 2, characterized in that the handle (7) is fixed to the adjusting screw (3) by means of a fixing element (8).

4. A lifting device of a milling cutter disc according to claim 3, characterized in that the fixing element (8) comprises a screw.

5. The lifting device of a milling cutter disc according to claim 1, further comprising a fastener (9);

a plurality of mounting holes are formed in the positioning step circle (2);

one fastener (9) is arranged in each mounting hole;

one end of the fastener (9) penetrates through the positioning step circle (2) and then is connected with the hoisting clamp body (1).

6. The lifting device of a milling cutter head according to claim 5, characterized in that the fastening means (9) comprise bolts.