CN215786775U

CN215786775U - Automatic processing device for outer diameter of valve sleeve

Info

Publication number: CN215786775U
Application number: CN202121255587.2U
Authority: CN
Inventors: 殷栋
Original assignee: Wuxi Maytag Precision Machinery Co ltd
Current assignee: Wuxi Maytag Precision Machinery Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-02-11
Anticipated expiration: 2031-06-04

Abstract

The utility model provides an automatic processing device for the outer diameter of a valve sleeve, which comprises a chuck and a movable center which are arranged in a collinear manner, wherein the chuck is fixedly arranged on a main shaft flange, the movable center is arranged on a fixed frame through a horizontal adjusting mechanism, and the movable center can move axially under the driving of the horizontal adjusting mechanism to push the valve sleeve to be processed to be tightly pressed on the chuck; still include knife rest and fixed mounting the lathe tool on the knife rest, the knife rest is installed through horizontal feed mechanism and vertical cutter relieving mechanism in the frame, carries out the clamping of valve barrel through live center and chuck cooperation from both ends, compares in the unilateral clamping mode of internal expanding chuck, and positioning accuracy is better, can avoid the valve barrel to keep away from the position of anchor clamps and appear the too big problem of radial circle beat at the rotation in-process, has guaranteed the precision of follow-up car processing, simultaneously through the mode that horizontal adjustment mechanism drive live center removed, the work piece of being convenient for more goes up unloading.

Description

Automatic processing device for outer diameter of valve sleeve

Technical Field

The utility model relates to the field of machining, in particular to an automatic machining device for the outer diameter of a valve sleeve.

Background

In the process of turning the outer diameter of the valve sleeve, a single-end internal expansion mode is generally adopted to position, clamp and drive the valve sleeve to rotate in the prior art, then the turning tool is used for machining the outer diameter of the valve sleeve, the mode has higher precision for machining a shorter valve sleeve, however, when the length of the valve sleeve is longer, the problem of overlarge radial circular runout can occur at one end, far away from a clamp, of the valve sleeve in the rotating process, and in the subsequent turning process, the outer diameter of the valve sleeve is machined to be tapered, so that the problem of workpiece machining scrapping is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, a single-end internal expansion mode is generally adopted for positioning and clamping a valve sleeve, when the length of the valve sleeve is longer, the radial circular run-out problem occurs at one end, far away from a clamp, of the valve sleeve in the rotating process, and the outer diameter of the valve sleeve is processed into a cone shape in the subsequent turning process, so that a workpiece is processed and scrapped.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an automatic processing device for the outer diameter of a valve sleeve comprises a chuck and a movable center which are arranged in a collinear manner, wherein the chuck is fixedly arranged on a main shaft flange and can rotate along with the main shaft flange; the lathe tool is fixedly arranged on the tool rest, the tool rest is arranged on the rack through a transverse feed mechanism and a longitudinal cutter relieving mechanism, and the lathe tool can move transversely under the driving of the transverse feed mechanism to perform turning processing on the periphery of the valve sleeve; the longitudinal cutter relieving mechanism can drive the turning tool to switch between the states of approaching to or leaving from the valve sleeve.

Further: the automatic processing device further comprises a first air cylinder, a material rack and a transfer rack, wherein the material rack is obliquely arranged in the left-high-right direction, the valve sleeves are arranged on the material rack, the transfer rack is arranged between the material rack and the chuck, the transfer rack is formed by a bearing seat and a baffle which are fixedly connected, the valve sleeve on the rightmost side of the material rack can slide into the bearing seat, a cylinder body of the first air cylinder is fixedly arranged on the rack, a piston rod of the first air cylinder is obliquely arranged in the left-low-right direction and is fixedly connected with the baffle, the bearing seat is driven by the piston rod of the first air cylinder to move between the material rack and the chuck, and the baffle can be abutted against the right side of the material rack so as to prevent the valve sleeves on the material rack from falling.

Further: the horizontal adjusting mechanism comprises a supporting sleeve and a second air cylinder, a first mounting hole arranged along the horizontal direction is arranged on the frame, the supporting sleeve is movably arranged in the first mounting hole, the live center is rotatably arranged at the right end of the supporting sleeve, a second mounting hole with an opening at the left end is arranged in the support sleeve, a connecting rod is arranged in the second mounting hole, the right end of the connecting rod is connected with the bottom of the second mounting hole through a spring, the cylinder body of the second cylinder is mounted on the frame, the piston rod of the cylinder is fixedly connected with the left end of the connecting rod, the piston rod of the second cylinder can drive the connecting rod to move left and right along the horizontal direction, the right end of the support sleeve is provided with a limiting clamping table protruding outwards along the circumferential direction, and the outer diameter of the limiting clamping table is larger than the aperture of the first mounting hole.

Further: the head of the chuck is provided with a guide step, and the guide step is conical.

The automatic processing device for the outer diameter of the valve sleeve has the advantages that the valve sleeve is clamped from two ends through the cooperation of the movable center and the chuck, compared with a one-way clamping mode of an inner expanding chuck, the automatic processing device for the outer diameter of the valve sleeve is better in positioning accuracy, the problem that the position, far away from the clamp, of the valve sleeve is overlarge in radial circular runout in the rotating process can be avoided, the subsequent turning accuracy is guaranteed, and meanwhile, the movable center is driven to move through the horizontal adjusting mechanism, so that a workpiece can be more conveniently loaded and unloaded.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of an automatic valve sleeve outer diameter machining device according to the present invention;

FIG. 2 is a schematic view of the carrier moving to the rack position;

FIG. 3 is a schematic structural diagram of the carrier moving between the rack collet and the live center;

FIG. 4 is a schematic view of the structure of the horizontal adjustment mechanism;

fig. 5 is a schematic view of the valve sleeve clamped between the live center and the collet.

In the figure, the clamping head comprises a clamping head 1, a clamping head 2, a movable center 3, a spindle flange 4, a frame 5, a valve sleeve 6, a tool rest 7, a turning tool 10, a first air cylinder 11, a material rest 12, a bearing seat 13, a baffle plate 14, a supporting sleeve 15, a second air cylinder 16, a first mounting hole 17, a second mounting hole 18, a connecting rod 19, a spring 20, a limiting clamping table 21 and a guiding step.

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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

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 and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

As shown in fig. 1, the utility model provides an automatic processing device for the outer diameter of a valve sleeve, which comprises a chuck 1 and a live center 2 which are arranged in a collinear manner, wherein the chuck 1 is fixedly installed on a spindle flange 3 and can rotate along with the spindle flange 3, the live center 2 is installed on a fixed frame 4 through a horizontal adjusting mechanism, and the live center 2 can move axially under the driving of the horizontal adjusting mechanism to push a valve sleeve 5 to be processed to be tightly pressed on the chuck 1; the lathe tool is characterized by further comprising a tool rest 6 and a lathe tool 7 fixedly mounted on the tool rest 6, wherein the tool rest 6 is mounted on the rack 4 through a transverse feeding mechanism and a longitudinal cutter relieving mechanism, and the lathe tool 7 can be driven by the transverse feeding mechanism to move transversely to perform turning processing on the periphery of the valve sleeve 5; the longitudinal cutter relieving mechanism can drive the turning tool 7 to switch the state of approaching to or departing from the valve sleeve 5.

During working, the valve sleeve 5 is placed on the chuck 1, the horizontal adjusting mechanism drives the movable center 2 to move so as to press the valve sleeve 5 on the chuck 1, the spindle flange 3 rotates to drive the valve sleeve 5 to rotate, the longitudinal cutter relieving mechanism drives the turning tool 7 to be close to the valve sleeve 5, the transverse cutter feeding mechanism drives the turning tool 7 to perform peripheral turning on the valve sleeve 5 from left to right along transverse movement, after the machining is completed, the longitudinal cutter relieving mechanism drives the turning tool 7 to be far away from the valve sleeve 5, the horizontal adjusting mechanism drives the movable center 2 to be far away from the valve sleeve 5, and the machined valve sleeve 5 falls into a finished product box; then the valve sleeve 5 is clamped between the chuck 1 and the live center 2 again, the transverse feed mechanism drives the turning tool 7 to move along the transverse direction, and the external diameter turning is carried out on the valve sleeve 5 from right to left, and the process is repeated. This kind of through live center 2 and chuck 1 cooperation from the one-way clamping mode of internal expanding chuck 1, the positioning accuracy is better in the mode that valve barrel 5 clamping was carried out from both ends, can avoid valve barrel 5 to beat too big problem at the rotation in-process radial circle simultaneously, and the machining precision is higher, the unloading of being convenient for simultaneously.

Referring to fig. 2 and 3, the automatic processing apparatus further includes a first cylinder 10, a stack 11 and a transfer stand, the material rest 11 is obliquely arranged in a left-high and right-low manner, the valve sleeves 5 are arranged on the material rest 11, the transfer frame is arranged between the material frame 11 and the chuck 1, the transfer frame is formed by fixedly connecting a bearing seat 12 and a baffle 13, the rightmost valve sleeve 5 on the material rack 11 can slide into the bearing seat 12, the cylinder body of the first cylinder 10 is fixedly arranged on the frame 4, the piston rod of the first cylinder 10 is obliquely arranged with the left lower part and the right higher part upwards, and is fixedly connected with the baffle 13, while the bearing seat 12 is driven by the piston rod of the first cylinder 10 to move between the material rack 11 and the chuck 1, the baffle 13 can be abutted against the right side of the material rack 11, so that the valve sleeve 5 on the material rack 11 is prevented from falling.

The valve sleeves 5 are sequentially arranged on the material rest 11, the material rest 11 is arranged in an inclined mode, when the bearing seat 12 moves to the position of the material rest 11, the valve sleeve 5 on the rightmost side slides into the bearing seat 12, the piston rod of the first air cylinder 10 extends to move the bearing seat 12 to a position between the chuck 1 and the movable center 2, the movable center 2 is driven by the horizontal adjusting mechanism to move to tightly press the valve sleeve 5 on the bearing seat 12 onto the chuck 1, then the piston rod of the first air cylinder 10 contracts to drive the bearing seat 12 to return to the position of the material rest 11, the valve sleeve 5 on the rightmost side of the material rest 11 falls into the bearing seat 12 again, and the operation is circulated in this mode, so that automatic control over feeding of the valve sleeves 5 is achieved, and workload of manual feeding is saved.

Referring to fig. 4, the horizontal adjusting mechanism includes a supporting sleeve 14 and a second cylinder 15, a first mounting hole 16 is formed in the frame 4 in the horizontal direction, the supporting sleeve 14 is movably mounted in the first mounting hole 16, the movable center 2 is rotatably mounted at the right end of the supporting sleeve 14, a second mounting hole 17 with an opening at the left end is formed in the supporting sleeve 14, a connecting rod 18 is mounted in the second mounting hole 17, the right end of the connecting rod 18 is connected with the bottom of the second mounting hole 17 through a spring 19, the cylinder body of the second cylinder 15 is mounted on the frame 4, the piston rod of the cylinder is fixedly connected with the left end of the connecting rod 18, the piston rod of the second cylinder 15 works to drive the connecting rod 18 to move left and right in the horizontal direction, and a limiting clamping table 20 protruding outward in the circumferential direction is arranged at the right end of the supporting sleeve 14, the outer diameter of the limiting clamping table 20 is larger than the aperture size of the first mounting hole 16.

The movable center 2 is driven to move by extending the piston rod of the second cylinder 15 to press the valve sleeve 5 on the chuck 1, and the arrangement of the connecting rod 18, the spring 19 and the supporting sleeve 14 can prevent the movable center 2 from excessively pushing the valve sleeve 5 to damage the valve sleeve 5. The limiting clamping table 20 is arranged to prevent the support sleeve 14 from moving excessively leftwards and separating from the first mounting hole 16.

As shown in fig. 5, the head of the chuck 1 is provided with a guide step 21, and the guide step 21 is tapered. The tapered guide step 21 provides guidance when the valve sleeve 5 is mounted on the collet 1, avoiding improper mounting or tilting of the valve sleeve 5.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 utility model. In this specification, a schematic representation of the term does 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.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a valve barrel external diameter automatic processing device which characterized in that: the machining fixture comprises a chuck (1) and a movable center (2) which are arranged in a collinear manner, wherein the chuck (1) is fixedly arranged on a main shaft flange (3) and can rotate along with the main shaft flange (3), the movable center (2) is arranged on a fixed rack (4) through a horizontal adjusting mechanism, and the movable center (2) can axially move under the driving of the horizontal adjusting mechanism to push a valve sleeve (5) to be machined to be pressed on the chuck (1);

the lathe tool is characterized by further comprising a tool rest (6) and a lathe tool (7) fixedly mounted on the tool rest (6), wherein the tool rest (6) is mounted on the rack (4) through a transverse feeding mechanism and a longitudinal cutter relieving mechanism, and the lathe tool (7) can be driven by the transverse feeding mechanism to perform turning processing on the periphery of the valve sleeve (5) along transverse movement; the longitudinal cutter relieving mechanism can drive the turning tool (7) to switch the state of being close to or far away from the valve sleeve (5).

2. The automatic valve sleeve outer diameter machining device according to claim 1, wherein: the automatic processing device further comprises a first air cylinder (10), a material rack (11) and a transfer rack, wherein the material rack (11) is obliquely arranged in a left-high and right-low mode, the material rack (11) is provided with the valve sleeves (5), the transfer rack is arranged between the material rack (11) and the chuck (1), the transfer rack is formed by fixedly connecting a bearing seat (12) and a baffle (13), and the valve sleeve (5) on the rightmost side of the material rack (11) can slide into the bearing seat (12);

the cylinder body fixed mounting of first cylinder (10) in on frame (4), the piston rod low left side right side height slope setting up of first cylinder (10) up, and with baffle (13) fixed connection, bear seat (12) through under the piston rod drive of first cylinder (10) work or material rest (11) with when moving between chuck (1), baffle (13) can support and hold the right side of work or material rest (11), avoid valve barrel (5) whereabouts on the work or material rest (11).

3. The automatic valve sleeve outer diameter machining device according to claim 1, wherein: the horizontal adjusting mechanism comprises a supporting sleeve (14) and a second air cylinder (15), a first mounting hole (16) arranged along the horizontal direction is formed in the rack (4), the supporting sleeve (14) is movably mounted in the first mounting hole (16), the movable center (2) is rotatably mounted at the right end of the supporting sleeve (14), a second mounting hole (17) with an opening at the left end is formed in the supporting sleeve (14), a connecting rod (18) is mounted in the second mounting hole (17), the right end of the connecting rod (18) is connected with the bottom of the second mounting hole (17) through a spring (19), a cylinder body of the second air cylinder (15) is mounted on the rack (4), a piston rod of the air cylinder is fixedly connected with the left end of the connecting rod (18), and a piston rod of the second air cylinder (15) can drive the connecting rod (18) to move left and right along the horizontal direction when working, the right end of the support sleeve (14) is provided with a limiting clamping table (20) protruding outwards along the circumferential direction, and the outer diameter of the limiting clamping table (20) is larger than the aperture size of the first mounting hole (16).

4. The automatic valve sleeve outer diameter machining device according to claim 1, wherein: the head of the chuck (1) is provided with a guide step (21), and the guide step (21) is conical.