CN112872727A - Processing technology and equipment for rear axle connecting flange - Google Patents

Processing technology and equipment for rear axle connecting flange Download PDF

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Publication number
CN112872727A
CN112872727A CN202110046134.7A CN202110046134A CN112872727A CN 112872727 A CN112872727 A CN 112872727A CN 202110046134 A CN202110046134 A CN 202110046134A CN 112872727 A CN112872727 A CN 112872727A
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CN
China
Prior art keywords
connecting flange
spline
expansion sleeve
face
flange blank
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CN202110046134.7A
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Chinese (zh)
Inventor
李启荣
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Chongqing Qixin Auto Parts Co ltd
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Chongqing Qixin Auto Parts Co ltd
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Priority to CN202110046134.7A priority Critical patent/CN112872727A/en
Publication of CN112872727A publication Critical patent/CN112872727A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40—Expansion mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

The invention discloses a processing technology and equipment of a rear axle connecting flange, which comprises the following steps of forging to obtain a connecting flange blank, and processing the connecting flange blank by electrophoretic paint: step 1: processing the small end face of the connecting flange blank; step 2: a broaching machine is adopted, a small end face positioning block is arranged on the broaching machine, the small end face of the connecting flange blank processed in the step 1 is used as a positioning face and is arranged on the small end face positioning block of the broaching machine, and a broach of the broaching machine is used for broaching a spline of an inner hole of the connecting flange blank to process an inner spline of the connecting flange blank; and step 3: and (2) clamping the connecting flange blank on a lathe by using the small end face of the connecting flange blank processed in the step (2) as a positioning face by adopting the lathe, and processing the large end face and the large end face seam allowance of the connecting flange blank by using a lathe tool of the lathe. The invention improves the processing precision and the working efficiency of the connecting flange.

Description

Processing technology and equipment for rear axle connecting flange
Technical Field
The invention relates to the field of machining, in particular to a machining process and equipment for a rear axle connecting flange.
Background
The rear axle connecting flange is used for connecting the transmission shaft and the main speed reducer gear, and both the transmission shaft and the main speed reducer gear are in a high-speed operation condition, so that the precision requirement on the connecting flange is high in order to ensure the connection reliability. The existing rear axle connecting flange is usually made of a forged piece, and in order to protect the connecting flange, the end face and the garland key of each connecting flange are machined after electrophoretic paint treatment. The manufacturing and processing method of the end face and the pull spline is as follows, and is shown in figure 1: positioning by using the large end face of the connecting flange, and drawing a spline on the forged piece by using a broaching machine; and then a lathe is adopted to firstly machine the large end face of the connecting flange, and finally the small end face of the connecting flange is lathed. Because the big end face of the connecting flange is in an electrophoretic paint state, and the locating surface is uneven, the processing method has the following problems:
1. after the spline is pulled, the large end face of the connecting flange is out of specification due to jumping, so that the small end face of the connecting flange is out of specification due to jumping.
2. The axial reference of the product can not be ensured to be consistent, and the precision of the processed connecting flange is low.
3. When the large end face and the large end face seam allowance of the connecting flange are machined, the connecting flange is sleeved on the taper spline mandrel, then the tip of the double-tip mechanism is used for jacking on the taper spline mandrel, and finally the large end face and the large end face seam allowance of the connecting flange are respectively machined through a turning tool, as shown in fig. 2. But each connecting flange needs to be subjected to tool setting before turning, so that the working efficiency is low.
Disclosure of Invention
The invention aims to provide a processing technology and equipment of a rear axle connecting flange aiming at the defects of the prior art, and the processing precision and the working efficiency of the connecting flange are improved.
The technical scheme of the invention is as follows:
the utility model provides a processing technology of rear axle flange, includes that the adoption forges and obtains the flange blank, will the flange blank carries out the electrophoresis lacquer processing, the flange blank adopts following step after carrying out the electrophoresis lacquer processing:
step 1: machining the small end face of the connecting flange blank by adopting a lathe;
step 2: a broaching machine is adopted, a small end face positioning block is arranged on the broaching machine, the small end face of the connecting flange blank processed in the step 1 is used as a positioning face and is arranged on the small end face positioning block of the broaching machine, and a broach of the broaching machine is used for broaching a spline of an inner hole of the connecting flange blank to process an inner spline of the connecting flange blank;
and step 3: and (2) clamping the connecting flange blank on a lathe by using the small end face of the connecting flange blank processed in the step (2) as a positioning face by adopting the lathe, and processing the large end face and the large end face seam allowance of the connecting flange blank by using a lathe tool of the lathe.
Further, the method comprises the step of sampling and detecting the processed products by using the detection tool after each processing step, wherein the sampling and detecting comprises first detection, timing self-detection and periodic inspection.
Further, a spline expansion sleeve fixture is arranged on a main shaft of the lathe in the step 3, the connecting flange blank is sleeved on the spline expansion sleeve fixture, and the large end face seam allowance of the connecting flange are machined through a turning tool of the lathe.
Further, the spline expansion sleeve clamp comprises an expansion sleeve body, a spline expansion sleeve, a mandrel and a hydraulic push rod, a bolt hole used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body, the spline expansion sleeve is arranged at the small-diameter end of the expansion sleeve body through the mandrel, external spline teeth are arranged outside the spline expansion sleeve, the external spline teeth of the spline expansion sleeve are used for being meshed with an internal spline of the connecting flange blank, the mandrel is connected with the hydraulic push rod in a pushing mode, the hydraulic push rod is used for pushing the spline expansion sleeve to clamp the connecting flange blank, strip-shaped anti-rotation grooves are formed in the mandrel and the hydraulic push rod, a mounting hole is formed in the expansion sleeve body, a locking piece is arranged in the mounting hole, and the locking piece is inserted into the strip-shaped anti-rotation grooves.
Further, the expansion sleeve body is provided with a gasket through a locking bolt.
And 3, before the connecting flange blank is clamped on the lathe, blowing sundries on a positioning surface of the tool by using an air gun to clean the positioning surface and the spline hole of the connecting flange blank.
Furthermore, the broaching tool of the broaching machine is flushed by cutting fluid during feeding and retracting.
Furthermore, before the broaching of the spline, the jumping of the broaching tool needs to be detected, and the spline is pulled after the detection is qualified.
Furthermore, a positioning groove for positioning the small end face of the connecting flange is arranged on a small end face positioning block of the broaching machine.
The other technical scheme of the invention is as follows:
the utility model provides a processing equipment of rear axle connecting flange, includes lathe and the broaching machine that is used for drawing the spline, the main shaft of lathe is equipped with the spline and rises set anchor clamps, the spline rises set anchor clamps and is used for pressing from both sides tight connecting flange blank.
Further, the spline expansion sleeve clamp comprises an expansion sleeve body, a spline expansion sleeve, a mandrel and a hydraulic push rod, a bolt hole used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body, the spline expansion sleeve is arranged at the small-diameter end of the expansion sleeve body through the mandrel, external spline teeth are arranged outside the spline expansion sleeve, the external spline teeth of the spline expansion sleeve are used for being meshed with an internal spline of the connecting flange blank, the mandrel is connected with the hydraulic push rod in a pushing mode, the hydraulic push rod is used for pushing the spline expansion sleeve to clamp the connecting flange blank, strip-shaped anti-rotation grooves are formed in the mandrel and the hydraulic push rod, a mounting hole is formed in the expansion sleeve body, a locking piece is arranged in the mounting hole, and the locking piece is inserted into the strip-shaped anti-rotation grooves.
Furthermore, a positioning block for positioning the small end face of the connecting flange blank is arranged on the broaching machine.
Adopt above-mentioned technical scheme to have following beneficial effect:
the improved process flow of the invention is that after electrophoretic paint is carried out on a connecting flange blank, the small end face of the connecting flange is firstly lathed, and then the inner hole of the connecting flange is subjected to spline drawing by taking the small end face of the connecting flange as a positioning face; and finally, processing a large end face and a large end face spigot in the same process by taking the small end face of the connecting flange as a positioning face. The processing method can ensure the size of the spigot of the large end face of the connecting flange and the runout of the large end face and the small end face, and has high processing precision and the requirement on the parallelism of the large end face and the small end face of the connecting flange.
And a spline expansion sleeve clamp is arranged on a main shaft of the lathe, the blank of the connecting flange is sleeved on the spline expansion sleeve clamp to be clamped, and the large end face seam allowance of the connecting flange are machined by a turning tool of the lathe. The spline expansion sleeve clamp is high in manufacturing precision, the small end face of the connecting flange abuts against the axial reference surface of the clamp, the axial reference of products is guaranteed to be consistent, tool setting is not needed to be carried out during each processing, and working efficiency is improved.
And after each processing step, sampling detection is carried out on the processed product by adopting the detection tool, wherein the sampling detection comprises first detection, timing self-detection and periodic inspection. The precision of the processed product is ensured through multiple detection, and the rate of unqualified products is avoided.
And blowing impurities on the positioning surface of the tool by using an air gun, and cleaning the positioning surface and the spline hole of the connecting flange blank. The processing precision of the large section and the large end surface seam allowance of the connecting flange is improved.
The broaching tool is cleaned by the cutting fluid, and the jumping of the broaching tool is detected before the broaching tool of the broaching machine is used for broaching the spline, so that the machining precision of the inner spline of the connecting flange is ensured.
According to the processing equipment of the rear axle connecting flange, the main shaft of the lathe is provided with the spline expanding sleeve clamp, and the spline expanding sleeve clamp is used for clamping and connecting a flange blank. The small end face of the connecting flange is close to the axial reference surface of the clamp, so that the axial reference of the product is consistent, tool setting is not required to be carried out during each processing, and the working efficiency is improved.
The broaching machine of the processing equipment is provided with the positioning block for positioning the small end face of the connecting flange blank, adopts the small end face of the connecting flange as the most positioning surface, can ensure the size of a spigot of the large end face of the connecting flange and the jumping of the large end face and the small end face, and has high processing precision and the requirement on the parallelism of the large end face and the small end face of the connecting flange.
The following description is further described in conjunction with the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of an assembly of a connecting flange and a broaching machine tool in pulling a spline in the prior art;
FIG. 2 is a schematic view of the assembly of a connecting flange with a tapered spline mandrel of a lathe according to the prior art;
FIG. 3 is a schematic structural view of a positioning block of a broaching machine in the processing apparatus of the present invention;
FIG. 4 is a schematic view of the assembly of the connecting flange blank with the locating block of the broaching machine according to the present invention;
FIG. 5 is a schematic structural view of the spline expanding sleeve clamp of the present invention;
FIG. 6 is an assembly diagram of the small end face of the connecting flange blank and the spline expanding sleeve clamp of the invention;
FIG. 7 is an assembly diagram of the large end face of the connecting flange blank and the spline expanding sleeve clamp according to the invention;
FIG. 8 is a flow chart of the process of the present invention.
In the attached drawing, 1 is a positioning block, 1-1 is a positioning groove, 2 is a spline expansion sleeve clamp, 2-1 is an expansion sleeve body, 2-1-1 is a bolt hole, 2-2 is a spline expansion sleeve, 2-3 is a mandrel, 2-4 is a hydraulic push rod, 2-5 is a locking piece, 2-6 is a gasket, and 3 is a connecting flange blank.
Detailed Description
Specific example 1:
referring to fig. 3 to 7, the processing equipment for the rear axle connecting flange comprises a lathe and a broaching machine for broaching the spline, wherein the broaching machine is provided with a positioning block 1 for positioning the small end face of the connecting flange blank 3, the positioning block 1 replaces a positioning block positioned on the existing broaching machine by the large end face of the connecting flange blank 3, and the positioning block 1 for positioning the small end face of the connecting flange blank 3 is arranged on the small end face positioning block 1 of the broaching machine. The broach and other structures of the broaching machine are the same as those of the conventional broaching machine, so that the embodiment is omitted.
The main shaft of lathe is equipped with spline cover anchor clamps 2 that rise, spline cover anchor clamps 2 that rise is used for cooperateing with the internal spline of flange blank 3, presss from both sides tight flange blank. The spline expansion sleeve clamp 2 comprises an expansion sleeve body 2-1, a spline expansion sleeve 2-2, a mandrel 2-3 and a hydraulic push rod 2-4, the expansion sleeve body 2-1 is in a step shape, a bolt hole 2-1-1 used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body 2-1, and the expansion sleeve body 2-1 is fixed on the lathe spindle through the bolt and the bolt hole 2-1-1 in a matched mode. A stepped through hole is formed in the expansion sleeve body 2-1, the spline expansion sleeve 2-2 is inserted into the stepped through hole of the expansion sleeve body 2-1 through the mandrel 2-3, the spline expansion sleeve 2-2 is arranged at the small-diameter end of the expansion sleeve body 2-1, and external spline teeth are arranged outside the spline expansion sleeve 2-2 and are used for being meshed with an internal spline of the connecting flange blank 3, in the specific embodiment: the spline tensioning sleeve 2-2 adopts an external spline clamp spring. The connecting end of the mandrel 2-3 is provided with an external thread, the hydraulic push rod 2-4 is provided with a threaded hole, the mandrel 2-3 is matched with the threaded hole of the hydraulic push rod 2-4 through the external thread and is connected with the hydraulic push rod 2-4, and the hydraulic push rod 2-3 is used for jacking the spline tensioning sleeve 2-2 to clamp and connect the flange blank 3. The hydraulic push rod 2-3 is connected with a hydraulic system, the hydraulic system of the existing machine tool is adopted, the pressure of the hydraulic system is 30-40 Mpa, the pressure of the hydraulic push rod is 20-23 Mpa, the pressure can push the spline tensioning sleeve to tension a workpiece, and the spline tensioning sleeve is prevented from being damaged due to too large force. Further, bar-shaped anti-rotation grooves are further formed in the mandrel 2-3 and the hydraulic push rod 2-4, a mounting hole communicated with the stepped through hole is formed in the expansion sleeve body 2-1, a locking piece 2-5 is arranged in the mounting hole, the locking piece 2-5 is inserted into the bar-shaped anti-rotation grooves of the mandrel 2-3 and the hydraulic push rod 2-4 and used for preventing the mandrel 2-3 and the hydraulic push rod 2-4 from rotating and does not influence the axial forward and backward movement of the mandrel 2-3 and the hydraulic push rod 2-4, in the specific embodiment: the locking pieces 2-5 adopt locking bolts. Furthermore, the expansion sleeve body 1 is provided with gaskets 2-6 through locking bolts, and the end face of the connecting flange blank 3 abuts against the gaskets 2-6 of the expansion sleeve body 1. The locking bolts are adopted for connection, so that gaskets 2-6 with different thicknesses can be adopted according to different connecting flange blanks 3, and the end faces of the connecting flange blanks 3 are protected by the gaskets 2-6. The turning tool and other structures of the lathe are the same as those of the existing lathe, so the embodiment is omitted here. The spline expansion sleeve clamp 2 is connected with a flange blank 3 in an expansion mode through a spline expansion sleeve 2-2 in an expansion mode, and the large end face and the small end face of the flange blank 3 can be connected in a turning mode. The small end face of the connecting flange blank 3 is the end face of the small-diameter end of the connecting flange blank 3, and the large end face of the connecting flange blank 3 is the end face of the large-diameter end of the connecting flange blank 3.
The invention adopts a hydraulic spline expansion sleeve clamp to replace a taper spline mandrel to process a large end surface and a spigot. The spline expansion sleeve fixture is arranged on a lathe spindle, the spline expansion sleeve is pushed by the hydraulic push rod to expand a machined workpiece, and the small end face of the workpiece is close to the axial reference surface of the spline expansion sleeve fixture, so that the axial reference of the product is consistent, and the tool setting of each workpiece is not required. The spline expanding sleeve clamp is high in manufacturing precision, and the size and the jumping of a workpiece spigot and the parallelism requirement of a large end face and a small end face can be guaranteed after machining. The spline expanding sleeve clamp can also be used for clamping other workpieces for processing, and the spline expanding sleeve clamp adopting the structure of the invention belongs to the protection scope of the invention.
Further, the pneumatic gun is connected with the hydraulic system. This clean frock locating surface of air gun and the locating surface and the splined hole of flange blank have avoided iron fillings to influence flange's location, have improved the machining precision.
Referring to fig. 8, a processing technology of a rear axle connecting flange, which adopts the processing equipment of the rear axle connecting flange of the present invention, and referring to fig. 1 to 7, the processing technology of the present invention includes forging to obtain a connecting flange blank, performing electrophoretic paint processing on the connecting flange blank, and performing electrophoretic paint processing on the connecting flange blank, wherein the following steps are adopted:
step 1: adopt the little terminal surface of lathe processing flange blank, when the little terminal surface of processing flange blank, can adopt three claw chucks to press from both sides the main aspects excircle or adopt spline cover anchor clamps 2 that rise to press from both sides tight flange blank car processing flange blank's little terminal surface, in this embodiment: and (3) clamping the outer circle of the large end of the three-jaw chuck clamp to tightly connect the flange blank and turning the small end face of the flange blank.
Step 2: the method comprises the following steps of adopting a broaching machine in the machining equipment of the rear axle connecting flange, wherein a small end face positioning block 1 is arranged on the broaching machine, a positioning groove 1-1 for positioning the small end face of the connecting flange 3 is arranged on the small end face positioning block 1 of the broaching machine, taking the small end face of the connecting flange blank machined in the step 1 as a positioning surface, installing the connecting flange blank 3 on the small end face positioning block 1 of the broaching machine, and machining the internal spline of the connecting flange blank 3 by drawing the spline of the inner hole of the connecting flange blank through a broaching tool of the broaching machine. Before the broaching of the spline, the jumping of the broaching tool needs to be detected, and the spline is pulled after the detection is qualified, so that the processing precision is effectively improved. Furthermore, when the broach of the broaching machine is fed and withdrawn, cutting fluid is adopted to flush the broach, and the broach is cleaned, so that the spline precision of the inner hole of the connecting flange is ensured.
And step 3: the method is characterized in that a lathe in machining equipment for a rear axle connecting flange is adopted, a spline expansion sleeve clamp 2 is arranged on a main shaft of the lathe, a connecting flange blank 3 is installed on the spline expansion sleeve clamp 2, the spline expansion sleeve clamp 2 is matched with an internal spline of the connecting flange blank 3, and a large end face spigot of the connecting flange are machined through a turning tool of the lathe in the same process. The spline expansion sleeve clamp 2 comprises an expansion sleeve body 2-1, a spline expansion sleeve 2-2, a mandrel 2-3 and a hydraulic push rod 2-4, the expansion sleeve body 2-1 is in a step shape, a bolt hole 2-1-1 used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body 2-1, and the expansion sleeve body 2-1 is connected with the lathe spindle through a bolt. A stepped through hole is formed in the expansion sleeve body 2-1, the spline expansion sleeve 2-2 is inserted into the stepped through hole of the expansion sleeve body 2-1 through the mandrel 2-3, the spline expansion sleeve 2-2 is arranged at the small-diameter end of the expansion sleeve body 2-1, external spline teeth are arranged outside the spline expansion sleeve 2-2 and are used for being meshed with an internal spline of the connecting flange blank 3, and a spline snap spring is arranged outside the spline expansion sleeve 2-2. The mandrel 2-3 is provided with external threads, the hydraulic push rod 2-4 is provided with a threaded hole, the external threads of the mandrel 2-3 are matched and connected with the threaded hole of the hydraulic push rod 2-4, and the hydraulic push rod 2-3 is used for jacking the spline tensioning sleeve 2-2 to clamp and connect the flange blank 3. The hydraulic push rod 2-3 is connected with a hydraulic system, the hydraulic system of the existing machine tool is adopted, the pressure of the hydraulic system is 30-40 Mpa, and the pressure of the hydraulic push rod is 20-23 Mpa. Further, the mandrel 2-3 and the hydraulic push rod 2-4 are both provided with a bar-shaped anti-rotation groove, the expansion sleeve body 2-1 is provided with a mounting hole communicated with the stepped through hole, a locking piece 2-5 is arranged in the mounting hole, and the locking piece 2-5 is inserted into the bar-shaped anti-rotation groove of the mandrel 2-3 and the hydraulic push rod 2-4 to prevent the mandrel 2-3 and the hydraulic push rod 2-4 from rotating, in the specific embodiment: the locking pieces 2-5 adopt locking bolts. Furthermore, the expansion sleeve body 1 is provided with gaskets 2-6 through locking bolts, the end face of the connecting flange blank 3 abuts against the gaskets 2-6 of the expansion sleeve body 1, and the gaskets 2-6 with different thicknesses are adopted according to different connecting flange blanks 3. And (3) taking the small end face of the connecting flange blank processed in the step (2) as a positioning face, mounting the connecting flange blank on the lathe, and processing the large end face and the large end face spigot of the connecting flange blank by using the lathe tool of the lathe.
The processing technology of the invention does not need to carry out tool setting in each processing, improves the working efficiency, uses the small end surface of the connecting flange blank as a positioning surface, processes the internal spline of the connecting flange blank firstly, and processes the large end surface and the large end surface seam allowance of the connecting flange blank, thereby effectively ensuring the jumping requirements of the large end surface and the small end surface of the connecting flange blank.
And 3, before the connecting flange blank is clamped on the lathe, blowing sundries on a positioning surface of the tool by using an air gun to clean the positioning surface and the spline hole of the connecting flange blank. The air gun is connected with the hydraulic system. Through the locating surface and the splined hole of clean frock locating surface and flange blank, avoided iron fillings to influence flange's location, improved the machining precision.
Possibly, after the operations of the steps 1, 2 and 3 are finished, sampling detection is carried out on the processed product by using the detection tool, and the sampling detection comprises first detection, timing self-detection and periodic inspection. The gauge adopts a common size detection tool in the existing machining. The first detection is to detect the first connecting flange blank processed when the cutter is switched or the first processing is carried out. The timing self-checking is to detect the machined connecting flange blank within a set time period. The regular inspection is to sample and detect the machined connecting flange blank after a period of time. In this particular embodiment: the first detection adopts the first connecting flange blank processed when the cutter is switched to detect, the positioning self-detection adopts the connecting flange blank processed at the moment after every other hour, and the regular inspection adopts the sampling detection of one processed connecting flange blank every two hours. The problems are found and solved in time through sampling detection at each time interval, so that the accuracy consistency of processed products is ensured. And recording the detection result in a check table, and adjusting or quickly positioning to find out unqualified products in the subsequent processing process according to the data information in the check table, for example: and connecting the unqualified products of tooth breakage, tooth decay and step depression of the tooth side, the large diameter, the small diameter and the large and small end faces of the flange spline. When debugging personnel debug the size, the debugging personnel should debug the size close to the middle size.
The processing technology is also suitable for processing the workpiece with the large end face and the small end face and the inner spline hole or the workpiece with the large end face and the small end face and the inner hole.

Claims (10)

1. The utility model provides a processing technology of rear axle flange, includes adopts and forges and obtains the flange blank, will the flange blank carries out electrophoresis lacquer processing, its characterized in that: the method comprises the following steps of processing a connecting flange blank by electrophoretic paint:
step 1: processing the small end face of the connecting flange blank;
step 2: a broaching machine is adopted, a small end face positioning block is arranged on the broaching machine, the small end face of the connecting flange blank processed in the step 1 is used as a positioning face and is arranged on the small end face positioning block of the broaching machine, and a broach of the broaching machine is used for broaching a spline of an inner hole of the connecting flange blank to process an inner spline of the connecting flange blank;
and step 3: and (2) clamping the connecting flange blank on a lathe by using the small end face of the connecting flange blank processed in the step (2) as a positioning face by adopting the lathe, and processing the large end face and the large end face seam allowance of the connecting flange blank by using a lathe tool of the lathe.
2. The process of claim 1 wherein the rear axle connecting flange is: the method also comprises the step of sampling and detecting the processed products by adopting the detection tool after each processing step, wherein the sampling and detecting comprises first detection, timing self-detection and periodic inspection.
3. Process for the production of a rear axle connecting flange according to claim 1 or 2, characterized in that: and 3, arranging a spline expansion sleeve clamp on a main shaft of the lathe, sleeving the connecting flange blank on the spline expansion sleeve clamp, and machining the large end face and the large end face seam allowance of the connecting flange by using a turning tool of the lathe.
4. The process of claim 3 wherein the rear bridge connecting flange is: the spline expansion sleeve clamp comprises an expansion sleeve body, a spline expansion sleeve, a mandrel and a hydraulic push rod, wherein a bolt hole used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body, the spline expansion sleeve is arranged at the small-diameter end of the expansion sleeve body through the mandrel, external spline teeth are arranged outside the spline expansion sleeve, the external spline teeth of the spline expansion sleeve are used for being meshed with an internal spline of a connecting flange blank, the mandrel is connected with the hydraulic push rod in a pushing mode, the hydraulic push rod is used for pushing the spline expansion sleeve to clamp the connecting flange blank, bar-shaped anti-rotation grooves are formed in the mandrel and the hydraulic push rod, a mounting hole is formed in the expansion sleeve body, a locking piece is arranged in the mounting hole, and the locking piece is inserted into the bar-shaped anti-rotation grooves.
5. The process of claim 4 wherein the rear bridge connecting flange is: the expansion sleeve body is provided with a gasket through a locking bolt.
6. The process of claim 1 wherein the rear axle connecting flange is: the broaching tool of the broaching machine is flushed by cutting fluid during feeding and retracting.
7. Process for manufacturing a rear axle connection flange according to claim 1 or 6, characterized in that: before the broaching of the spline, the jumping of the broaching tool needs to be detected, and the spline is pulled after the detection is qualified.
8. The utility model provides a processing equipment of rear axle connecting flange, includes lathe and the broaching machine that is used for drawing the spline which characterized in that: a main shaft of the lathe is provided with a spline expansion sleeve clamp, and the spline expansion sleeve clamp is used for clamping and connecting a flange blank.
9. The tooling apparatus for the rear axle connecting flange of claim 8, wherein: the spline expansion sleeve clamp comprises an expansion sleeve body, a spline expansion sleeve, a mandrel and a hydraulic push rod, wherein a bolt hole used for being connected with a connecting flange of a lathe spindle is formed in the large-diameter end of the expansion sleeve body, the spline expansion sleeve is arranged at the small-diameter end of the expansion sleeve body through the mandrel, external spline teeth are arranged outside the spline expansion sleeve, the external spline teeth of the spline expansion sleeve are used for being meshed with an internal spline of a connecting flange blank, the mandrel is connected with the hydraulic push rod in a pushing mode, the hydraulic push rod is used for pushing the spline expansion sleeve to clamp the connecting flange blank, bar-shaped anti-rotation grooves are formed in the mandrel and the hydraulic push rod, a mounting hole is formed in the expansion sleeve body, a locking piece is arranged in the mounting hole, and the locking piece is inserted into the bar-shaped anti-rotation grooves.
10. The processing equipment of the rear axle connecting flange according to claim 8 or 9, wherein: and the broaching machine is provided with a positioning block for positioning the small end face of the connecting flange blank.
CN202110046134.7A 2021-01-14 2021-01-14 Processing technology and equipment for rear axle connecting flange Pending CN112872727A (en)

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CN103028742A (en) * 2012-12-28 2013-04-10 瓦房店轴承集团有限责任公司 Turning technology of tapered roller bearing inner race
CN202984839U (en) * 2012-12-21 2013-06-12 株洲齿轮有限责任公司 Cylindrical gear shaving fixture
CN103707007A (en) * 2013-12-04 2014-04-09 鞠小平 Method for machining bearing block of active bevel gear
CN106271436A (en) * 2016-08-31 2017-01-04 江苏金卡汽车部件有限公司 A kind of gear ring support processing technique
CN107234404A (en) * 2017-07-31 2017-10-10 重庆江增船舶重工有限公司 A kind of manufacture method of vapour compression machine diffuser
CN108637632A (en) * 2018-07-11 2018-10-12 抚州申铃汽车配件有限责任公司 A kind of processing technology and fixture of automobile axle flange
CN108994545A (en) * 2018-09-06 2018-12-14 重庆江增船舶重工有限公司 A kind of processing method and its turning measuring tool of TC bearings shell
CN210046020U (en) * 2019-04-30 2020-02-11 四川联茂机械制造有限公司 Internal spline core expansion type machine tool fixture

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202640140U (en) * 2012-06-08 2013-01-02 株洲齿轮有限责任公司 Grinding fixture
CN202984839U (en) * 2012-12-21 2013-06-12 株洲齿轮有限责任公司 Cylindrical gear shaving fixture
CN103028742A (en) * 2012-12-28 2013-04-10 瓦房店轴承集团有限责任公司 Turning technology of tapered roller bearing inner race
CN103707007A (en) * 2013-12-04 2014-04-09 鞠小平 Method for machining bearing block of active bevel gear
CN106271436A (en) * 2016-08-31 2017-01-04 江苏金卡汽车部件有限公司 A kind of gear ring support processing technique
CN107234404A (en) * 2017-07-31 2017-10-10 重庆江增船舶重工有限公司 A kind of manufacture method of vapour compression machine diffuser
CN108637632A (en) * 2018-07-11 2018-10-12 抚州申铃汽车配件有限责任公司 A kind of processing technology and fixture of automobile axle flange
CN108994545A (en) * 2018-09-06 2018-12-14 重庆江增船舶重工有限公司 A kind of processing method and its turning measuring tool of TC bearings shell
CN210046020U (en) * 2019-04-30 2020-02-11 四川联茂机械制造有限公司 Internal spline core expansion type machine tool fixture

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Application publication date: 20210601