CN213080712U

CN213080712U - Clamping and transmission device for machining long shaft parts

Info

Publication number: CN213080712U
Application number: CN202021202788.1U
Authority: CN
Inventors: 徐进; 陈翔; 仲嘉嘉
Original assignee: CSSC MES Diesel Co Ltd
Current assignee: CSSC MES Diesel Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-04-30
Anticipated expiration: 2030-06-28

Abstract

A clamping and transmission device for machining long shaft parts is arranged on a chuck of a machine tool, the long shaft parts are provided with a center hole and a process hole, and the clamping and transmission device comprises a tip body, a transmission rod, a protective sleeve and a cover plate; wherein, top body centre gripping is on the jack catch of chuck, including the disk body with be located the apical part at this disk body center, this apical part supports in the centre bore of major axis class part, the one end of driving rod is passed through mounting bolt and mounting nut and is connected on the disk body and can follow the radial adjusting position of this disk body, the protective sheath passes through the apron and connects in the periphery of the other end of driving rod and insert the fabrication hole of major axis class part together with this driving rod, the chuck is rotatory to drive clamping and transmission, and then the driving rod drives major axis class part and rotates together. The utility model has the advantages of simple structure, easy and simple to handle, application scope are wide, have gained the effect that improves automatic level, guarantee safety in production, can extensively be used for the processing of large-scale major axis class part.

Description

Clamping and transmission device for machining long shaft parts

Technical Field

The utility model relates to a process units is used in major axis class parts machining, in particular to clamping and transmission for processing major axis class part belongs to machining technical field.

Background

The piston rod is one of important moving parts of a high-power low-speed marine diesel engine, and is long in length, heavy in mass and complex in appearance. Referring to fig. 1 and 13, the conventional method for processing the shape of the piston rod is to clamp the circular end of the piston rod a by using a four-jaw chuck on a semi-automatic common machine tool, support the center hole a1 at the other end by using a tailstock center of the machine tool, and drive the piston rod a to rotate by a spindle. However, the clamping mode has many disadvantages, the rod body needs to be calibrated after the piston rod is loaded on the vehicle every time, the diameter of the four-jaw chuck is 1.6 meters, an operator cannot directly operate and clamp the clamping jaws at the upper part, but needs to rotate the clamping jaws to be clamped by the four-jaw chuck to the operation position of the side surface, and the rotating chuck is moved in the process, so that the head is easily rotated carelessly, the piston rod falls off, and quality, equipment or personal safety accidents are caused. Therefore, the existing processing mode has low working efficiency, high labor intensity and numerous accident hidden dangers such as quality, equipment, safety and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping and transmission for processing long axis class part is installed on the lathe, plays reliable supporting location and the rotatory effect of drive to large-scale major axis work piece, reaches easy and simple to handle, guarantees product quality, eliminates the potential safety hazard, improves the effect of operating efficiency and processingquality.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a clamping and transmission for processing major axis class part installs on the chuck of numerical control lathe, grinding machine or polishing lathe, the both ends of major axis class part are equipped with the centre bore, are close to circumference edge and are equipped with fabrication hole, its characterized in that: the clamping and transmission device comprises a tip body, a transmission rod, a protective sleeve and a cover plate; the center body is clamped on a clamping jaw of the chuck and comprises a disc body and a top point part located at the center of the disc body, the top point part is supported in a center hole at one end of the long shaft part, one end of a transmission rod is connected to the disc body of the center body through a mounting bolt and a mounting nut and can be adjusted in position along the radial direction of the disc body, the protective sleeve is connected to the periphery of the other end of the transmission rod through the cover plate and is inserted into a technical hole of the long shaft part together with the transmission rod, the chuck rotates to drive the clamping and transmission device, and the transmission rod drives the long shaft part to rotate together.

Furthermore, the lower part of the disc body of the centre body is provided with a waist-shaped groove facing to the outside, a T-shaped long groove for penetrating the mounting bolt is arranged in the waist-shaped groove, and the T-shaped long groove is communicated with the waist-shaped groove and the inner side surface of the disc body.

Further, the long axis of the waist-shaped groove is along the radial direction of the disc body, and the length direction of the T-shaped long groove is parallel to the long axis of the waist-shaped groove.

Furthermore, the mounting bolt comprises a bolt head and a threaded part, and two parallel side planes are processed on the bolt head, so that the shape of the bolt head is matched with the shape of the T-shaped long groove.

Further, the transmission rod comprises a disc part and a circular shaft part, wherein the disc part and the circular shaft part are mutually connected through axes, the disc part is arranged in the waist-shaped groove of the tip body, a connecting through hole for penetrating the mounting bolt is formed in the disc part, and a threaded blind hole is formed in the center of the end face of the circular shaft part.

Further, the protective sheath be cylindrical sleeve, the cover is arranged in the periphery of the round shaft portion of driving rod, the apron includes axis interconnect's round cap portion and screw rod portion, this screw rod portion screw in the screw thread blind hole of driving rod, round cap portion is with this protective sheath clamping on this driving rod.

Further, the outer diameter of the circular cover part of the cover plate is larger than the inner hole diameter of the protective sleeve.

Furthermore, the apical part of the apical body is replaced according to the size of the central hole of the long shaft part.

Compared with the prior art, the beneficial effects of the utility model are that:

the clamping and transmission device is matched with the top of a machine tool to support large-scale long shaft parts, and the transmission rod of the clamping and transmission device drives the long shaft parts to rotate through a chuck of the machine tool, so that the reliable positioning and the driving rotation of the long shaft parts are realized, the correcting and adjusting operation of workpieces during loading is facilitated, the manual labor of operators is effectively reduced, the processing efficiency and the product quality are improved, and the accident potential is eliminated; the utility model has the advantages of simple structure, easy and simple to handle, low cost, application scope are wide, have gained the beneficial effect that improves automation level, guarantee safety in production, reduce intensity of labour, can extensively be used for the processing of marine diesel piston rod and other large-scale major axis class parts.

Drawings

Fig. 1 is a schematic structural diagram of a piston rod long-axis part.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the tip body.

Fig. 4 is a sectional view B-B of fig. 3.

FIG. 5 is a schematic view of the actuator stem.

Fig. 6 is a right side view of fig. 5.

Fig. 7 is a schematic view of the structure of the mounting bolt.

Fig. 8 is a left side view of fig. 7.

Figure 9 is a cross-sectional view of the protective sheath.

Fig. 10 is a schematic structural view of the cover plate.

Fig. 11 is a right side view of fig. 10.

Fig. 12 is an installation schematic of the present invention.

Fig. 13 is a use state diagram of the present invention.

In the figure, 1-protective sleeve, 2-transmission rod, 21-disk part, 22-circular shaft part, 23-connecting through hole, 24-threaded blind hole, 3-cover plate, 31-circular cover part, 32-screw part, 4-mounting bolt, 41-bolt head, 42-threaded part, 5-tip body, 51-disk body, 52-tip part, 53-kidney-shaped groove, 54-T-shaped long groove, 6-mounting nut, A-piston rod, A1-central hole, A2-fabrication hole, C-clamping and transmission device, and D-tip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, which should not be construed as limiting the scope of the invention.

The utility model discloses install on the chuck of numerical control lathe, grinding machine or burnishing machine tool for processing large-scale major axis class part, like marine diesel engine's piston rod, please refer to fig. 1, piston rod A's both ends are equipped with centre bore A1, are close to circumference edge and are equipped with fabrication hole A2.

Referring to fig. 2, the clamping and driving device includes a tip body 5, a driving rod 2, a protecting sleeve 1 and a cover plate 3.

The tip body 5 is clamped on the jaws of a machine tool chuck, and referring to fig. 3 and 4, the tip body 5 includes a circular disk body 51 and a tip portion 52. The tip part 52 is located at the center of the disc body 51 and supported in the center hole a1 at one end of the long shaft part, and the tip part 52 can be replaced according to the size of the center hole a1 of the long shaft part so as to adapt to the processing of the long shaft parts with different specifications. The lower part of the disc body 51 is provided with a waist-shaped groove 53 facing to the outside and used for connecting the driving rod 2, two T-shaped long grooves 54 are arranged in the waist-shaped groove 53, and the T-shaped long grooves 54 are communicated with the groove bottom of the waist-shaped groove 53 and the inner side surface of the disc body 51. The long axis of the waist-shaped groove 53 is along the radial direction of the disc body 51, and the length direction of the T-shaped long groove 54 is parallel to the long axis of the waist-shaped groove 53.

Referring to fig. 12, one end of the driver rod 2 is connected to the kidney-shaped groove 53 of the circular disc body 51 through the mounting bolt 4 and the mounting nut 6, and the position of the driver rod can be adjusted in the kidney-shaped groove 53 along the radial direction of the circular disc body 51 to adapt to different long-axis parts, and the other end of the driver rod 2 is inserted into the fabrication hole a2 of the long-axis part to transmit the rotation motion.

Referring to fig. 5 and 6 in combination, the transmission rod 2 includes a disk portion 21 and a circular shaft portion 22 connected to each other, and the circular shaft portion 22 is coaxial with the disk portion 21. The disc part 21 is accommodated in the waist-shaped groove 53 of the tip body 5, and a plurality of connecting through holes 23 for the mounting bolts 4 to pass through are formed in the disc part 21; the center of the end face of the round shaft part 22 is provided with a threaded blind hole 24 for connecting the cover plate 3.

Referring to fig. 7 and 8, the mounting bolt 4 includes a bolt head 41 and a threaded portion 42, and the bolt head 41 is provided with two parallel side planes, so that the outer shape of the bolt head 41 matches the shape of the T-shaped slot 54. Referring to fig. 12, the mounting bolt 4 penetrates through the T-shaped long groove 54 of the tip body 5 and the connecting through hole 23 of the disc portion 21 accommodated in the kidney-shaped groove 53 from the inside, and cooperates with the mounting nut 6 connected to the threaded portion 42 to fixedly connect the driver rod 2 to the tip body 5. The bolt head 41 of the mounting bolt 4 is received in the T-shaped slot 54.

Referring to fig. 12, the protective sleeve 1 is connected to the outer periphery of the other end of the actuator rod 2 through the cover plate 3, and is inserted into the fabrication hole a2 of the long shaft type part together with the actuator rod 2.

Referring to fig. 9, the protective sleeve 1 is a cylindrical sleeve. Referring to fig. 10 and 11, the cover plate 3 includes a dome portion 31 and a screw portion 32 connected to each other, and the dome portion 31 and the screw portion 32 are coaxial. Referring to fig. 12, the protective sleeve 1 is sleeved on the periphery of the round shaft portion 22 of the driver rod 2, the screw portion 32 of the cover plate 3 is screwed into the threaded blind hole 24 of the driver rod 2, and the round cover portion 31 clamps the protective sleeve 1 on the driver rod 2. In order to securely fix the protective sleeve 1, the outer diameter of the dome portion 31 of the cover plate 3 must be larger than the inner hole diameter of the protective sleeve 1.

Use the processing of piston rod as the example, the utility model discloses an installation use as follows:

referring to fig. 12 and 13, before the piston rod a is shaped, the center body 5 of the clamping and driving device C is clamped by a chuck of a lathe, the apical part 52 of the center body 5 is pushed into the center hole a1 of the flat end of the piston rod a, and the center D of the lathe tailstock is pushed into the center hole a1 of the other end of the piston rod a, so as to support and position the piston rod a; then the assembled driving rod 2, the protective sleeve 1 and the cover plate 3 are inserted into the fabrication hole A2 of the piston rod A together; and finally, the clamping and transmission device C is driven by the rotation of the chuck of the machine tool, and then the transmission rod 2 drives the piston rod A to rotate together, so that the processing of the piston rod A is completed.

The utility model discloses increased substantially machining efficiency and quality, on-the-spot actual operation is also more simple and convenient, has reduced intensity of labour effectively, has reduceed process cost when guaranteeing operator personal safety.

The above-mentioned embodiment is not used for limiting the scope of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiment, and should include other right as well the obvious transformation and substitution scheme of the present invention, all the changes and modifications made by the contents of the present invention belong to the scope of the present invention.

Claims

1. The utility model provides a clamping and transmission for processing major axis class part installs on the chuck of numerical control lathe, grinding machine or polishing lathe, the both ends of major axis class part are equipped with the centre bore, are close to circumference edge and are equipped with fabrication hole, its characterized in that: the clamping and transmission device comprises a tip body, a transmission rod, a protective sleeve and a cover plate; the center body is clamped on a clamping jaw of the chuck and comprises a disc body and a top point part located at the center of the disc body, the top point part is supported in a center hole at one end of the long shaft part, one end of a transmission rod is connected to the disc body of the center body through a mounting bolt and a mounting nut and can be adjusted in position along the radial direction of the disc body, the protective sleeve is connected to the periphery of the other end of the transmission rod through the cover plate and is inserted into a technical hole of the long shaft part together with the transmission rod, the chuck rotates to drive the clamping and transmission device, and the transmission rod drives the long shaft part to rotate together.

2. The clamping and transmission device for processing long-shaft parts according to claim 1, characterized in that: the lower part of the disc body of the tip body is provided with a waist-shaped groove facing the outside, a T-shaped long groove for penetrating the mounting bolt is arranged in the waist-shaped groove, and the T-shaped long groove is communicated with the waist-shaped groove and the inner side face of the disc body.

3. The clamping and transmission device for processing long-shaft parts according to claim 2, characterized in that: the long axis of the waist-shaped groove is along the radial direction of the disc body, and the length direction of the T-shaped long groove is parallel to the long axis of the waist-shaped groove.

4. The clamping and transmission device for processing long-shaft parts according to claim 2, characterized in that: the mounting bolt comprises a bolt head and a threaded part, two parallel side planes are processed on the bolt head, and the shape of the bolt head is matched with the shape of the T-shaped long groove.

5. The clamping and transmission device for processing long-shaft parts according to claim 2, characterized in that: the transmission rod comprises a disc part and a round shaft part, wherein the disc part and the round shaft part are mutually connected through an axis, the disc part is arranged in the waist-shaped groove of the tip body, the disc part is provided with a connecting through hole for the installation bolt to penetrate through, and the center of the end surface of the round shaft part is provided with a threaded blind hole.

6. The clamping and transmission device for processing long-shaft parts according to claim 5, is characterized in that: the protective sheath be cylindrical sleeve, the cover is arranged in the periphery of the round shaft portion of driving rod, the apron includes axis interconnect's round cap portion and screw rod portion, this screw rod portion screw in the screw thread blind hole of driving rod, round cap portion will this protective sheath clamping on this driving rod.

7. The clamping and transmission device for processing long-shaft parts according to claim 6, wherein: the outer diameter of the round cover part of the cover plate is larger than the diameter of the inner hole of the protective sleeve.

8. The clamping and transmission device for processing long-shaft parts according to claim 1, characterized in that: the center part of the center body is replaced according to the size of the center hole of the long shaft part.