CN112536487A

CN112536487A - Gear end face turning device and method

Info

Publication number: CN112536487A
Application number: CN202011377815.3A
Authority: CN
Inventors: 黎梅; 孙龙; 朱加平
Original assignee: Chongqing Xingji Gear Co ltd
Current assignee: Chongqing Xingji Gear Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-23
Anticipated expiration: 2040-11-30
Also published as: CN112536487B

Abstract

The invention relates to the field of gear machining, and particularly discloses a gear end face turning device and a gear end face turning method. This scheme stopper can be covered the meshing tooth of gear, and when cutting add man-hour, the cutting sword can not contact with the meshing tooth, reduces the risk of cutting sword fracture damage.

Description

Gear end face turning device and method

Technical Field

The invention belongs to the field of gear machining, and particularly relates to a gear end face turning device and method.

Background

In the machining process of the gear, the meshed teeth need to be machined firstly, and after the machining of the gear is completed, the end face of the gear needs to be turned.

When the end face of the gear is turned, the end face of the gear and the end face of the meshing tooth are synchronously cut in a common machining mode, the contact part of a cutter and the meshing tooth is in an intermittent cutting state in the cutting process, the meshing tooth is continuously cut and separated, and the local part of the cutter is easy to break and damage; meanwhile, when the end face of the gear is cut, the end face of the meshing tooth needs to be synchronously cut, so that the cutting time of the gear is prolonged, the machining efficiency of the gear is reduced, and the machining cost of the gear is increased.

Disclosure of Invention

The invention aims to provide a gear end face turning device and a gear end face turning method, which aim to solve the problem that when the end face of a gear is cut, meshing teeth of the gear are synchronously cut by a cutting knife, the cutting knife continuously cuts and separates the meshing teeth, and the cutting knife has the risk of fracture and damage.

In order to achieve the above object, the basic scheme of the invention is as follows: the utility model provides a gear face lathe work device, cutting unit including turning platform and cutting gear face, still include the centre gripping unit of centre gripping gear, the centre gripping unit is including the installation arm, the linking arm, location axle and the stopper of fixed gear shaft hole department, installation arm and linking arm are all installed on the turning platform, location axle horizontal rotation is installed on the installation arm of turning platform, stopper fixed mounting is on the linking arm, and be equipped with the spacing groove with the meshing tooth sliding contact of gear on the stopper, the quantity of cutting unit is two, and two cutting units set up along the vertical axis symmetry of spacing groove, the lateral wall of stopper is less than the terminal surface of gear.

The principle and advantages of the basic scheme are as follows: when the gear is installed, the positioning shaft can be used for preliminarily positioning the gear; then, a limiting block is arranged on the gear, so that the meshing teeth on the gear are embedded into the limiting groove, the gear is further positioned, meanwhile, the side wall of the limiting block is lower than the end face of the gear, the limiting block can cover the meshing teeth of the gear after the limiting block is arranged on the gear, and the cutting knife cannot contact with the meshing teeth during cutting, so that the risk of fracture and damage of the cutting knife is reduced; when the end face of the gear is cut, the cutting blades of the two cutting units can simultaneously cut the two end faces of the gear, the cutting efficiency is effectively improved, the cutting blades cannot cut the meshed teeth, and the cutting efficiency of the end face of the gear can be further improved.

Further, the linking arm horizontal sliding mount is on the turning platform, and the linking arm is "L" type of invering, the upside and the linking arm fixed connection of stopper, and the spacing groove in the spacing block is the arc, and spacing groove and the coaxial setting of location axle.

Through the arrangement, the L-shaped connecting arm can stably support the limiting block, and the limiting block is convenient to be opposite to the gear; meanwhile, the arc-shaped limiting groove can fully limit the progress of the meshing teeth of the gear, and the gear is conveniently and fully positioned.

Further, the cutting unit comprises a cutting knife and a clamping arm for clamping the cutting knife, the cutting knife clamp is detachably mounted at one end of the clamping arm, and the other end of the clamping arm is horizontally and slidably mounted on the turning table.

Through the arrangement, the clamping arm can stably support the cutting tool, and the position of the cutting tool relative to the end face of the gear is controlled through the sliding relation between the clamping arm and the turning table, so that stable cutting machining is performed.

Furthermore, a first slide rail for the connecting arm to horizontally slide and a second slide rail for the clamping arm to horizontally slide are arranged on the turning table, and the horizontal axes of the first slide rail and the second slide rail are parallel to the horizontal axis of the positioning shaft.

Through the arrangement, the connecting arm can horizontally slide along the first sliding rail, the clamping arm can horizontally slide along the second sliding rail, the cutting knife and the limiting block are convenient to be close to or far away from the gear, and the gear can be effectively limited or cut.

Furthermore, the number of the limiting blocks is two, the limiting grooves in the two limiting blocks can be spliced into a ring shape, and the two limiting blocks can cover the meshing teeth on the gear.

Through the arrangement, the cutting knife is prevented from impacting the meshing teeth, meanwhile, metal scraps can be effectively prevented from impacting the meshing teeth, and then the limiting blocks can effectively protect the meshing teeth of the gear.

Further, the cutting method of the gear end face comprises the following steps:

step 1: mounting a gear on a positioning shaft, wherein a shaft hole of the gear is abutted against the side wall of the positioning shaft, and the gear and the positioning shaft are coaxially arranged to finish primary positioning of the gear;

step 2: sliding a connecting arm on a first sliding rail, enabling a limiting block to be opposite to meshing teeth of the gear, clamping the meshing teeth on the gear in limiting grooves of two limiting blocks, splicing the two limiting grooves together to wrap the gear, and enabling the limiting blocks to position the gear again;

and step 3: sliding two clamping arms on a second sliding rail, wherein the two clamping arms are positioned on the left side and the right side of the movable gear, so that the cutting knives on the two clamping arms are opposite to the part to be cut on the end surface of the gear, and the two cutting knives are symmetrically arranged along the vertical surface of the gear;

and 4, step 4: the positioning shaft drives the gear, the fixing ring, the limiting rod and the supporting rod to rotate at the rotating speed of 80-130r/min, the two cutters cut the positions to be cut on the end surfaces on the two sides of the gear, and the gear can finish the cutting processing of the end surfaces after rotating for 20-30 s;

and 5: the rotation of the positioning shaft is stopped, the limiting block moves towards the direction far away from the gear, and then the gear after cutting processing is taken down.

Through the arrangement, in the step 1, the shaft hole of the gear can be abutted against the side wall of the positioning shaft, so that the gear is initially limited; meanwhile, the gear is matched with the limiting block in the step 2, and the limiting block can further position the gear, so that the gear is stably installed on the positioning shaft; meanwhile, the meshing teeth on the gear are wrapped in the limiting grooves, so that in the step 4, the limiting blocks can protect the meshing teeth on the gear; in the step 3, the positions of the two cutting knives can be quickly controlled through the matching of the clamping arm and the second sliding rail, so that the two cutting knives can simultaneously cut and process two end faces of the gear in the step 4; in step 5, the gear after the cutting is completed can be quickly disassembled.

Drawings

FIG. 1 is a schematic structural view of a gear face turning device according to the present invention;

FIG. 2 is a cross-sectional view of the positioning shaft, gears and stop blocks A-A of FIG. 1;

fig. 3 is a process flow chart of the turning method of the gear end face of the invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the turning table 10, the mounting arm 201, the connecting arm 301, the limiting block 302, the first sliding rail 303, the third sliding rail 304, the limiting groove 305, the connecting rod 306, the positioning shaft 401, the limiting hole 402, the threaded hole 412, the tapered hole 422, the guide hole 432, the limiting rod 403, the threaded section 413, the tapered section 423, the guide rod section 433, the support rod 404, the rubber sheet 405, the fixing ring 406, the clamping arm 501, the second sliding rail 502, the cutting knife 503, the gear 60 and the meshing teeth 601.

In an embodiment, a gear face turning apparatus substantially as shown in figures 1 and 2: a gear face turning device comprises a turning table 10, a cutting unit for cutting the face of a gear 60 and a clamping unit for clamping the gear 60.

As shown in fig. 1, the clamping unit comprises a mounting arm 201, a connecting arm 301, a positioning shaft 401 at an axle hole of the fixed gear 60, a fixing ring 406 and a limiting block 302, the lower end of the mounting arm 201 is welded with the rear end of the turning table 10, the positioning shaft 401 is horizontally and rotatably mounted on the front side of the mounting arm 201 of the turning table 10, as shown in fig. 2, a mounting groove which can be opposite to the axle hole of the gear 60 is formed in the right end of the positioning shaft 401, threads are formed in the inner ring of the fixing ring 406, the right end of the positioning shaft 401 is connected with the fixing ring 406, and the fixing ring 406 is located on; meanwhile, the positioning shaft 401 is retracted, a fixing ring 406 is coaxially and threadedly mounted on the right end of the positioning shaft 401, a limiting hole 402 is coaxially arranged in the right end of the fixing ring 406, the limiting hole 402 sequentially comprises a threaded hole 412, a tapered hole 422 and a guide hole 432 which are sequentially communicated from left to right, a limiting rod 403 is detachably connected in the limiting hole 402 through threads, the limiting rod 403 sequentially comprises a threaded section 413, a tapered section 423 and a guide rod section 433 which are integrally formed from left to right, the threaded section 413 is in threaded connection with the threaded hole 412, four supporting rods 404 are vertically mounted in the tapered hole 422, the supporting rods 404 are arranged in the positioning shaft 401 in a sliding manner along the radial direction, one end of each supporting rod 404 penetrates through the positioning shaft 401 and is located in the mounting groove and can abut against the side wall of the shaft hole of the gear 60, and the; the end of the support bar 404 near the gear 60 is hinged with a rubber sheet 405.

As shown in fig. 1, the cutting unit includes a cutting blade 503 and a clamping arm 501 for clamping the cutting blade 503, the clamping arm 501 and the connecting arm 301 are both in an inverted "L" shape, a first slide rail 303 for the connecting arm 301 to horizontally slide and a second slide rail 502 for the clamping arm 501 to horizontally slide are welded on the turning table 10, and horizontal axes of the first slide rail 303 and the second slide rail 502 are both parallel to a horizontal axis of the positioning shaft 401; the number of the limiting blocks 302 is two, limiting grooves 305 in sliding contact with the meshing teeth 601 of the gear 60 are formed in the limiting blocks 302, the limiting grooves 305 in the limiting blocks 302 are arc-shaped, the limiting grooves 305 and the positioning shaft 401 are coaxially arranged, the limiting grooves 305 in the two limiting blocks 302 can be spliced into a ring shape, the two limiting blocks 302 can cover the meshing teeth 601 on the gear 60, connecting rods 306 horizontally arranged are welded on the right sides of the limiting blocks 302, third sliding rails 304 are vertically welded on the upper ends of the connecting arms 301, and the right ends of the connecting rods 306 are connected with the sliding clamping positions of the third sliding rails 304; simultaneously cutting sword 503 snap-fit is on the upper right end of centre gripping arm 501, and the quantity of cutting unit is two, and two cutting units set up along the vertical axis symmetry of spacing groove 305, and then can carry out lathe work simultaneously to the both sides of gear 60.

In addition, as shown in fig. 2, the thickness of the limiting block 302 is smaller than the thickness of the portion to be cut on the end surface of the gear 60.

When a gear face turning device is used for turning the face of a gear, the processing flow is basically as shown in the attached figure 3, and the method specifically comprises the following steps:

step 1: the gear 60 is installed on a positioning shaft 401, and the installation grooves on the positioning shaft 401 are opposite to the shaft hole of the gear 60; then the limiting rod 403 is screwed into the limiting hole 402, the threaded hole 412 at the left end of the limiting hole 402 is meshed and locked with the threaded section 413 of the limiting rod 403, the limiting rod 403 synchronously moves leftwards, the side wall of the conical section 423 of the limiting rod 403 abuts against one end of the supporting rod 404, which is located in the conical hole 422, when the end parts of the four supporting rods 404 contact with the conical section 423, the diameter of the longitudinal section of the contact part is sequentially increased, the supporting rod 404 is further pushed to move towards the direction of the gear 60, the supporting rod 404 locks the shaft hole of the gear 60, and the rubber sheet 405 tightly abuts against the shaft hole of the gear 60, so that the radial positioning of the gear 60 is realized;

step 2: the fixing ring 406 is installed on the right end of the positioning shaft 401 in a threaded mode, the left side of the fixing ring 406 abuts against the right end face of the gear 60, and the fixing ring 406 does not cover the position to be cut of the end face of the gear 60;

and step 3: sliding the connecting arm 301 on the first slide rail 303 to make the limiting block 302 opposite to the meshing teeth 601 of the gear 60; then, the right end of the connecting rod 306 is slid along the third slide rail 304, the two limit blocks 302 move oppositely, the engaging tooth 601 at the upper side of the gear 60 is clamped in the limit groove 305 of the upper limit block 302, the engaging tooth 601 at the lower side of the gear 60 is clamped in the limit groove 305 of the lower limit block 302, and then the right end of the connecting rod 306 is locked with the third slide rail 304, so that the gear 60 is axially positioned;

and 4, step 4: sliding the two clamping arms 501 on the second slide rail 502, wherein the two clamping arms 501 are positioned on the left side and the right side of the movable gear 60, so that the cutting knives 503 on the two clamping arms 501 are opposite to the positions to be cut on the end surface of the gear 60, and the two cutting knives 503 are symmetrically arranged along the vertical surface of the gear 60;

and 5: the positioning shaft 401 drives the gear 60, the fixing ring 406, the limiting rod 403 and the supporting rod 404 to rotate at the rotating speed of 100r/min, the two cutting knives 503 cut the positions to be cut of the end surfaces of the two sides of the gear 60, and the gear 60 rotates for 20-30s to finish the cutting processing of the end surfaces;

step 6: the positioning shaft 401 stops rotating, the connecting rod 306 is vertically moved along the third slide rail 304, and the limiting block 302 moves in a direction away from the gear 60; then, the gear 60 after cutting can be removed by unscrewing the stopper rod 403 and the fixing ring 406.

Claims

1. The utility model provides a gear face lathe work device, includes the cutting unit of turning platform and cutting gear face, its characterized in that still includes the centre gripping unit of centre gripping gear, the centre gripping unit is including location axle and the stopper of installation arm, linking arm, fixed gear shaft hole department, and installation arm and linking arm are all installed on the turning platform, and location axle level is rotated and is installed on the installation arm of turning platform, and stopper fixed mounting is on the linking arm, and be equipped with the spacing groove with the meshing tooth sliding contact of gear on the stopper, and the quantity of cutting unit is two, and two cutting units set up along the vertical axis symmetry of spacing groove, and the lateral wall of stopper is less than the terminal surface of gear.

2. The gear end face turning device according to claim 1, wherein the connecting arm is horizontally slidably mounted on the turning table, the connecting arm is in an inverted "L" shape, the upper side of the limiting block is fixedly connected with the connecting arm, the limiting groove in the limiting block is in an arc shape, and the limiting groove and the positioning shaft are coaxially arranged.

3. The gear face turning device according to claim 2, wherein the cutting unit comprises a cutting blade and a holding arm for holding the cutting blade, the cutting blade holder is detachably mounted on one end of the holding arm, and the other end of the holding arm is horizontally slidably mounted on the turning table.

4. The gear end face turning device of claim 3, wherein the turning table is provided with a first slide rail for the connecting arm to horizontally slide and a second slide rail for the clamping arm to horizontally slide, and horizontal axes of the first slide rail and the second slide rail are parallel to a horizontal axis of the positioning shaft.

5. The gear end face turning device according to claim 4, wherein the number of the limiting blocks is two, the limiting grooves in the two limiting blocks can be spliced into a ring shape, and the two limiting blocks can cover the meshing teeth on the gear.

6. The gear face turning machine of claim 5, wherein the method of machining a gear face comprises the steps of: