CN114029567B

CN114029567B - Turning device for processing inner threads of annular shaft sleeve

Info

Publication number: CN114029567B
Application number: CN202111503226.XA
Authority: CN
Inventors: 王二杰
Original assignee: Anhui Weiye Machinery Co ltd
Current assignee: Anhui Weiye Machinery Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-11-04
Anticipated expiration: 2041-12-10
Also published as: CN114029567A

Abstract

The invention relates to the technical field of machining equipment, and particularly discloses a cutting device for processing an inner thread of an annular shaft sleeve; the lathe tool feeding device is arranged at one end of the upper surface of the machine base, a bearing ring is arranged at the other end of the upper surface of the machine base, a rotary feeding and discharging mechanism is arranged in the bearing ring, a vertical shaft penetrating through a hollow rotating shaft and a regular polygon connecting seat is fixedly arranged in the machine base, a rotating seat is fixed at the upper end of the vertical shaft, the triangular chuck is connected to the rotating seat, a jacking device is arranged below the triangular chuck, and a butting wheel abutted against the lower surface of a swing arm is connected to the jacking device; the turning device disclosed by the invention realizes the continuous internal thread turning of the annular shaft sleeve, does not need operators to carry out manual feeding and discharging, not only greatly improves the internal thread turning efficiency of the annular shaft sleeve, but also effectively reduces the labor intensity of the operators, and has excellent use effect.

Description

Turning device for processing inner threads of annular shaft sleeve

Technical Field

The invention relates to the technical field of machining equipment, and particularly discloses a turning device for machining an inner thread of an annular shaft sleeve.

Background

The annular shaft sleeve is a common hardware, generally used with a shaft rod, and when the annular shaft sleeve is used with a threaded rod, internal threads need to be turned on the inner wall of the annular shaft sleeve, so that the annular threaded shaft sleeve is obtained through machining (as shown in the attached figure 8).

The existing numerical control thread turning device consists of a bed body, a triangular chuck, a turning tool and a turning tool feeding device. For example, the invention patent with application number CN2012103965178 discloses a numerical control threading device which is installed between a chuck and a tool rest of a large end face lathe and extends into a nut internal thread bottom hole, and comprises a bracket part, a beam fixing part, a bracket part and a numerical control cutting system, wherein the numerical control cutting system comprises a PLC controlling the cutting part and a servo motor driving the cutting system. The numerical control thread turning device disclosed by the invention has the advantages that when the chuck drives the workpiece to rotate, the cutting system controlled by the PLC program and driven by the servo motor completes the axial and radial cutting actions, so that the numerical control thread turning device is mature and wide in application at present and has higher machining precision. However, when the annular shaft sleeve is machined by the conventional numerical control thread turning device, manual feeding and discharging are needed, an operator manually aligns the annular shaft sleeve before turning and then fixes the annular shaft sleeve in a triangular chuck, and manual feeding is needed after turning is completed, so that not only is the labor intensity high, but also when the size of the turned annular shaft sleeve is large, only one operator cannot complete feeding and discharging. In addition, the general surface temperature can be higher after the turning of annular axle sleeve internal thread, and operating personnel is scalded easily when carrying out the unloading. Therefore, to current numerical control threading device need the manual not enough of unloading of going up in carrying out internal thread lathe work to annular shaft sleeve, this application provides a whole annular shaft sleeve internal thread of automatic feeding, unloading is with cutting device in processing.

Disclosure of Invention

The invention aims to design a turning device for processing internal threads of an annular shaft sleeve, which can automatically feed and discharge in the whole process, aiming at the defect that the conventional numerical control turning device needs manual feeding and discharging when the internal threads of the annular shaft sleeve are turned.

The invention is realized by the following technical scheme:

a cutting device for processing threads in an annular shaft sleeve comprises a base, a triangular chuck, a turning tool feeding device and a control box, wherein the turning tool feeding device is arranged at one end of the upper surface of the base;

the rotary feeding and discharging mechanism comprises a hollow rotating shaft connected with the inner wall of a bearing ring, a driving device used for driving the hollow rotating shaft to rotate is arranged in the base, a hollow regular polygon connecting base is connected to the upper end of the hollow rotating shaft, a swing arm is rotatably connected to each side face of the regular polygon connecting base, the end portion of the swing arm is connected with a fixing disc, a positioning groove and a key block groove are formed in the upper surface and the lower surface of the fixing disc respectively, a key block which is a guide inclined plane and faces one end of the regular polygon connecting base is arranged in the key block groove, an elastic piece is arranged between the key block and the key block groove, a connecting rod extending into the positioning groove is connected onto the key block, and the top end of the connecting rod is connected with a magnetic adsorption top plate located in the positioning groove;

the rotary motor is characterized in that a vertical shaft penetrating through the hollow rotating shaft and the regular polygon connecting seat is fixedly arranged in the base, a rotating seat is fixed at the upper end of the vertical shaft, the triangular chuck is connected to the rotating seat, a rotary motor driving the triangular chuck to rotate is arranged on the rotating seat, a jacking device is arranged below the triangular chuck, and the jacking device is connected with a butting wheel abutted to the lower surface of the swing arm.

The turning device disclosed by the invention is used for processing the annular shaft sleeve, the annular shaft sleeve is sequentially placed in a fixed material disc and is adsorbed and fixed through a magnetic adsorption top plate, then the abutting wheel is pushed upwards through the jacking action of the jacking device when the swinging arm rotates to the position below a triangular chuck, the swinging arm is firstly jacked to be vertical in the process of upwards moving the abutting wheel, the fixed material disc is aligned and attached to the triangular chuck, then the jacking device is continuously extended, the abutting wheel is abutted to a guide inclined plane on a key block in the process of vertically upwards moving, so that the key block is pressed to the triangular chuck, the annular shaft sleeve is pushed into the triangular chuck through the action of a connecting rod and the magnetic adsorption top plate, then the triangular chuck clamps and fixes the annular shaft sleeve, the jacking device retracts to be reset to be horizontal, and then the turning tool feeding device and the rotary motor are started to turn internal threads of the annular shaft sleeve. After the machining is completed, the swing arm is abutted to the vertical part in a second time in an extending mode by the jacking device, so that the material fixing plate is aligned and attached to the triangular chuck, after the triangular chuck loosens the clamping acting force on the annular shaft sleeve, the annular shaft sleeve after machining is taken down due to the adsorption effect of the magnetic adsorption top sheet, and finally, the rotary setting angle of the feeding and discharging mechanism is realized through the driving device, so that the annular shaft sleeve on the next station is repeatedly processed by the actions.

As a specific arrangement of the above scheme, the turning tool feeding device comprises a fixed frame, a sliding block is arranged in the fixed frame, a turning tool bit assembly is arranged on the sliding block, a first pushing device for realizing transverse feeding of the sliding block is arranged on the fixed frame, and a second pushing device for realizing longitudinal adjustment of the turning tool bit assembly is arranged on the sliding block; the turning depth and the turning total length of the internal thread of the annular shaft sleeve can be adjusted and processed at will through the first pushing device and the second pushing device.

As a specific arrangement of the above scheme, the driving device comprises a stepping motor arranged in the base, an output shaft of the stepping motor is connected with a driving gear, and the lower end of the hollow rotating shaft is provided with a ring gear meshed with the driving gear; the angle of each rotation of the rotary feeding and discharging mechanism can be accurately controlled by the pulse signals for controlling the stepping motor, so that each station on the rotary feeding and discharging mechanism can be aligned with the triangular chuck.

As a specific arrangement of the above scheme, the section of the regular polygon connecting seat is a regular hexagon or a regular octagon; the cross-section of specific regular polygon connecting seat still is not only limited to above-mentioned two kinds, still can set more regular decagon or dodecagon of station according to whole equipment size.

As a further arrangement of the scheme, the lower end of each side surface of the regular polygon connecting seat is connected with a base plate which supports the swing arm to be horizontal; the backing plate that sets up can play the bearing effect to the tip of swing arm for the swing arm is the horizontality under not receiving the exogenic action.

As a further arrangement of the scheme, the lower surface of the swing arm is provided with a roller groove matched with the abutting wheel; the roller groove can prevent the abutting wheel and the swing arm from offsetting when the abutting wheel and the swing arm are abutted.

Has the beneficial effects that:

the cutting device for processing the internal thread of the annular shaft sleeve disclosed by the invention realizes continuous internal thread turning processing of the annular shaft sleeve, wherein the butting wheel acts on the lower surface of the swing arm through the arranged jacking device, so that the swing arm is rotated to be vertical to be aligned and attached with the triangular chuck, the annular shaft sleeve in the positioning disc can be automatically pushed into the triangular chuck, and the annular shaft sleeve can be automatically sucked into the triangular chuck during blanking.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of the present invention;

FIG. 3 is a schematic view of the internal plan structure of the housing of the present invention;

FIG. 4 is a schematic perspective view of a rotary loading and unloading mechanism according to the present invention;

FIG. 5 is a schematic perspective view of the swing arm, the material fixing plate and the key block of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 7 is a schematic perspective view of the circular top plate, permanent magnets, key blocks, etc. of the present invention;

fig. 8 is a schematic perspective view of the processed annular bushing.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "coupled" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 8, in conjunction with examples.

Example 1

Embodiment 1 discloses a turning device for processing a thread in an annular shaft sleeve, and referring to fig. 1 and fig. 2, a main body of the turning device comprises a base 100, a rotary loading and unloading mechanism 200, a triangular chuck 300, a turning tool feeding device 400 and a control box 500 arranged on the front side surface of the base 100.

Referring to fig. 3 and 4, a bearing ring 101 is disposed at the right end of the upper surface of the base 100, and the rotary loading and unloading mechanism 200 is rotatably disposed in the bearing ring 101. Wherein, rotatory last unloading mechanism 200 includes the cavity pivot 201 with bearing ring 101 inner wall looks welded, cavity pivot 201 stretches into and is provided with ring gear 202 on the outer disc of the lower extreme of frame 100 inner chamber, the fixed driving motor 203 that is provided with in the inner chamber of frame 100 simultaneously, specific this driving motor 203 optional step motor, be connected with driving gear 204 on step motor's output shaft, and set up driving gear 204 and ring gear 202 mutually meshing, the pulse signal through control input step motor can realize the rotatory angle of settlement at every turn of cavity pivot 201.

A regular polygon connecting base 205 is connected to the upper end of the hollow rotating shaft 201, and the connecting base 205 is also hollow and connected to the hollow rotating shaft 201. In a specific arrangement, the connecting base 202 in this embodiment is a regular octagon, the swing arms 206 are connected to eight sides of the connecting base 202 through the rotating members, and the base plates 207 for supporting the swing arms 206 to a horizontal shape are welded to the connecting base 202 below the rotating members.

Referring to fig. 5, 6 and 7, a material fixing plate 208 is connected to an end of each swing arm 206, and a positioning groove 2081 is formed on an upper surface of the material fixing plate 208, so that the annular shaft sleeve 600 to be processed or after being processed can be placed therein. A key block groove 2082 is formed in the lower surface of the material fixing disc 208, a through hole is formed between the positioning groove 2081 and the key block groove 2082, a connecting rod 209 penetrates through the through hole, a circular top plate 210 located in the positioning groove 2081 is connected to the upper end of the connecting rod 209, and a permanent magnet 211 is arranged in the circular top plate 210. The lower end of the connecting rod 209 is connected with a key block 212 positioned in a key block groove 2082, a compression spring 213 is connected between the upper surface of the key block 212 and the top wall of the key block groove 2082, and the compression spring 213 can be sleeved on the lower end of the connecting rod 209. Meanwhile, an inclined guide slope 2121 is provided at an end of the key block 212 facing the coupling holder 205.

Referring to fig. 3, a column 301 is fixedly connected to the base 100 located right below the bearing ring 101, the upper end of the column 301 extends out of the connecting seat 205, a rotating seat 302 is fixed at the top end of the column 301, a rotating motor 303 is installed on the right side surface of the rotating seat 302, the triangular chuck 300 is arranged on the left side of the rotating seat 302, an output shaft of the rotating motor 303 penetrates through the rotating seat 302 to be connected with the triangular chuck 300, and after the triangular chuck 300 clamps and fixes the annular shaft sleeve 600 to be processed, the annular shaft sleeve 600 is rotated by the driving action of the rotating motor 303 in the turning process.

Referring to fig. 1 and 2, the turning tool feeding device 400 is disposed at the left end of the upper surface of the machine base 100, and includes a fixing frame 401 fixedly connected to the upper surface of the machine base 100, a guide rail 403 facing the triangular chuck is disposed on the fixing frame 401, a guide slider 404 is disposed on the guide rail 403, and a turning bit assembly 405 is disposed in the guide slider 404. A first pushing device 406 for pushing the guide slider 404 to transversely feed is arranged on the fixed frame 401, and a second pushing device 407 for pushing the turning cutter head assembly 405 to longitudinally adjust is arranged on the guide slider 404, wherein both the first pushing device 406 and the second pushing device 407 can be a hydraulic cylinder or an air cylinder. The feed rate and total feed distance of the turning bit assembly 405 during internal thread turning can be controlled by controlling the oil or air feed rate and amount of the first and

second pushers

406 and 407.

Referring to fig. 3, the rotary loading and unloading mechanism 200 further includes a jacking device 214 disposed below the line connecting the turning bit assembly 405 and the trigon chuck 300. In specific arrangement, the jacking device 214 is a hydraulic cylinder, the jacking device 214 is fixedly arranged on the left side surface of the upright column 301 in the inner cavity of the machine base 100, and the upper end of a piston rod of the jacking device 214 is connected with a butting wheel 215. Meanwhile, a top outlet is formed in the upper surface of the machine base 100 which is positioned right above the jacking device 214, the abutting wheel 215 extends out of the top outlet through the extension of a piston rod of the jacking device 214, then the abutting wheel is abutted against the lower surface of the swing arm 206, and the swing arm 206 can be jacked to be vertical by the piston rod of the jacking device 214 continuously extending out.

When the turning device for internal thread machining of an annular shaft sleeve disclosed in this embodiment 1 performs internal thread turning on the annular shaft sleeve, a corresponding step program is preset by a control module in the control box 500, and then the annular shaft sleeve 600 is sequentially turned upside down in the positioning groove of each material fixing disc 208 by a mechanical arm or a lifting device.

The whole turning device is started, pulse signals input into the driving motor 203 are controlled, then the rotary loading and unloading mechanism 200 rotates 45 degrees at a time through meshing transmission between the driving gear 204 and the ring gear 202, and then the abutting wheel extends out of the ejection port to act on the lower surface of the swing arm 206 through extending the piston rod of the jacking device 214. Continuing to extend the piston rod of the jacking device 214, the swing arm 206 is jacked to be vertical under the action of the abutting wheel 215, and the material fixing disc 208 is aligned and attached to the triangular chuck. Further extending the piston rod of the jacking device 214 causes the abutting wheel to move vertically along the guide slope 2121 on the key block 212, so as to press the key block 212 towards the inside of the key block groove 2082, and then the annular shaft sleeve 600 is pushed into the triangular chuck 300 under the action of the connecting rod 209 and the circular top plate 210, and then is fixedly clamped by the triangular chuck 300.

After the annular shaft sleeve 600 is fixedly clamped by the triangular chuck 300, the jacking device 214 retracts and resets, the swing arm 206 also rotates horizontally under the action of self gravity, at the moment, the turning tool feeding device 400 extends the turning tool bit assembly 405 into the inner wall, then the rotating motor 303 and the first pushing device 406 are simultaneously started, and the internal thread turning of the annular shaft sleeve 600 is completed through the turning tool bit.

Finally, after the internal thread turning is completed, the jacking device 214 is continuously controlled to extend to enable the positioning disc 208 to be just aligned and attached to the triangular chuck, then the triangular chuck loosens the clamping state of the annular shaft sleeve 600, the annular shaft sleeve 600 is sucked into the positioning groove again through the magnetic adsorption effect inside the circular top plate 210, then the swing arm 206 is reset to be horizontal, the steps are repeated on the annular shaft sleeve 600 on the next station through the action of the driving motor 203, and the processed annular shaft sleeve 600 can be taken out of the positioning groove through a mechanical arm or a lifting device, and meanwhile the annular shaft sleeve 600 to be processed is placed into the positioning groove.

The turning device for annular shaft sleeve internal thread processing disclosed by embodiment 1 realizes continuous internal thread turning of the annular shaft sleeve, does not need operators to manually feed and discharge materials, greatly improves internal thread turning efficiency of the annular shaft sleeve, and effectively reduces labor intensity of the operators.

Example 2

Embodiment 2 discloses a cutting device for processing an internal thread of an annular shaft sleeve, which has a similar structure to that of embodiment 1, and the same points as embodiment 1 are not explained again, except that:

the connecting seat 202 in this embodiment 2 is a regular hexagon, and the swing arms 206 connected to the side of the connecting seat 202 are totally six, so that the rotary loading and unloading mechanism 200 rotates 60 degrees at a time to switch the stations under the driving action of the stepping motor.

Referring to fig. 5, in this embodiment 2, in order to prevent the abutting wheel 215 and the swing arm 206 from shifting when the abutting wheel 215 is pushed upward by the jacking device 214, a guide roller groove 2061 engaged with the key groove 2082 is further formed on the lower surface of the swing arm 206, and the abutting wheel 215 can move along the direction of the guide roller groove 2061 under the pushing of the jacking device 214, so that the rotation process of the swing arm 206 is more stable.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for processing threads in an annular shaft sleeve comprises a base, a triangular chuck, a turning tool feeding device and a control box, and is characterized in that the turning tool feeding device is arranged at one end of the upper surface of the base, a bearing ring is arranged at the other end of the upper surface of the base, and a rotary feeding and discharging mechanism is arranged in the bearing ring;

the fixed stand that runs through cavity pivot and regular polygon connecting seat that is provided with in the frame, the upper end of stand is fixed with rotates the seat, the triangle chuck is connected on rotating the seat, and is provided with the rotatory rotating electrical machines of drive triangle chuck on rotating the seat, the below of triangle chuck is provided with jacking system, the last butt wheel with swing arm lower surface looks butt that is connected with of jacking system.

2. The turning device for processing the internal thread of the annular shaft sleeve as claimed in claim 1, wherein the turning tool feeding device comprises a fixed frame, a sliding block is arranged in the fixed frame, a turning tool bit assembly is arranged on the sliding block, a first pushing device for realizing transverse feeding of the sliding block is arranged on the fixed frame, and a second pushing device for realizing longitudinal adjustment of the turning tool bit assembly is arranged on the sliding block.

3. The cutting device for processing the internal thread of the annular shaft sleeve as claimed in claim 1, wherein the driving device comprises a stepping motor arranged in the base, a driving gear is connected to an output shaft of the stepping motor, and the lower end of the hollow rotating shaft is provided with a ring gear meshed with the driving gear.

4. The cutting device for processing the internal thread of the annular shaft sleeve as claimed in claim 1, wherein the cross section of the regular polygonal connecting seat is a regular hexagon or a regular octagon.

5. The cutting device for machining the inner thread of the annular shaft sleeve is characterized in that a base plate for supporting the swing arm to be horizontal is connected to the lower end of each side face of the regular polygon connecting base.

6. The cutting device for processing the internal thread of the annular shaft sleeve as claimed in claim 1, wherein the lower surface of the swing arm is provided with a roller groove matched with the abutting wheel.