CN111451817A - General positioning tool for numerical control machining of rear axle assembly - Google Patents
General positioning tool for numerical control machining of rear axle assembly Download PDFInfo
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- CN111451817A CN111451817A CN202010394247.1A CN202010394247A CN111451817A CN 111451817 A CN111451817 A CN 111451817A CN 202010394247 A CN202010394247 A CN 202010394247A CN 111451817 A CN111451817 A CN 111451817A
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- fixing
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- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- 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
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Abstract
The utility model provides a general location frock of rear axle assembly numerical control processing, relates to a rear axle assembly processing frock, and including fixing base, bottom plate, two sets of clamping components, two sets of movable supporting block subassemblies, two sets of axle sleeve location compress tightly the subassembly, and two sets of axle sleeve location compress tightly the subassembly symmetry and install on the bottom plate, and two sets of clamping components, two sets of movable supporting block subassemblies are respectively symmetrically installed on fixing base and bottom plate. The shaft sleeve positioning and pressing component can realize positioning and pressing of the shaft sleeve of the workpiece; the clamping assembly can be used for clamping the longitudinal arm beam on one side of the disc ancient support of the workpiece, and the movable supporting block assembly is used for supporting the bottom of the longitudinal arm beam at the mounting position of the disc ancient support of the workpiece. The invention can realize automatic and rapid positioning and clamping of the rear axle assembly, does not need manual local clamping, local adjustment and local processing, can meet the requirements of rapid adjustment of workpieces and processing of rear axle assemblies with different wheel bases, has the characteristics of simple operation, high production efficiency and reliable structure, and is easy to popularize and use.
Description
Technical Field
The invention relates to a rear axle assembly processing tool, in particular to a universal positioning tool for numerical control processing of a rear axle assembly.
Background
The rear axle assembly is an important transmission component of the automobile chassis, and is composed of a cross arm beam 1001 and a longitudinal arm beam 1002 (see fig. 10) positioned at the left end and the right end of the cross arm beam 1001, wherein a shaft sleeve 1003 and a disc-shaped bracket 1004 are welded at the front end and the rear end of the longitudinal arm beam 1002 respectively. After the whole welding of rear axle assembly is accomplished, need to process dish ancient support installation face. Because the rear shaft assembly is irregular in shape and difficult to position and clamp, local clamping, local adjustment and local machining are adopted at present, so that the operation is very troublesome, the machining efficiency is low, and the requirement of mass production cannot be met.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a general location frock of rear axle assembly numerical control processing to solve the shortcoming that prior art exists troublesome poeration, machining efficiency hang down.
The technical scheme for solving the technical problems is as follows: a rear axle assembly numerical control machining general positioning tool comprises a fixed seat, a bottom plate, two sets of clamping components, two sets of movable supporting block components and two sets of shaft sleeve positioning and pressing components, wherein the bottom plate is installed at the top end of the fixed seat; the two sets of clamping assemblies and the two sets of movable supporting block assemblies are respectively and symmetrically arranged on the fixed seat and the bottom plate, and the clamping assemblies are used for clamping a longitudinal arm beam on one side of the disc ancient support of the workpiece; the movable supporting block assembly is used for supporting the bottom of the longitudinal arm beam at the mounting position of the disc ancient support of the workpiece.
The further technical scheme of the invention is as follows: the shaft sleeve positioning and compressing assembly comprises a first air cylinder, a first air cylinder fixing seat, a movable pin sleeve, a shaft sleeve positioning reference plate, a shaft sleeve positioning pin, a compressing block movable pin, a second air cylinder fixing seat and a second air cylinder; the first air cylinder is installed at one end of the fixed seat through the first air cylinder fixed seat, and the fixed seat is installed on the bottom plate; the movable pin is arranged in the fixed seat through a movable pin sleeve, and one end of the movable pin is connected with the extending end of the first air cylinder; the other end of the movable pin is connected with a shaft sleeve positioning pin which is used for being positioned in a shaft sleeve inner hole of the workpiece; the shaft sleeve positioning reference plate is used for positioning one end face of a shaft sleeve of a workpiece and is connected to the end face of the movable pin sleeve; the second cylinder pass through the second cylinder fixing base and install at the fixing base other end relative with first cylinder, the compact heap movable pin is installed in the second cylinder fixing base, and the one end of compact heap movable pin and the end connection that stretches out of second cylinder, the other end of compact heap movable pin is connected with the compact heap that is used for compressing tightly the axle sleeve other end terminal surface of work piece.
The further technical scheme of the invention is as follows: and a supporting block II is also arranged at the bottom of the shaft sleeve of the workpiece and is fixed on the bottom plate through a cushion block.
The further technical scheme of the invention is as follows: the clamping assembly comprises a guide sleeve, a connecting pin, a clamping block supporting seat, a rotating pin, a rotating cylinder fixing seat and a rotating cylinder; the rotary cylinder pass through the rotary cylinder fixing base and install in the fixing base, the uide bushing fix on the bottom plate, the one end of rotatory round pin and rotary cylinder's piston end connection, the other end of rotatory round pin stretches out the fixing base to pass through connecting pin and press from both sides tight piece after bottom plate, the uide bushing in proper order and be connected, press from both sides the one end of tight piece and install on the bottom plate through pressing from both sides tight piece supporting seat, press from both sides the other end of pressing from both sides tight piece and press from both sides tightly on the longitudinal arm roof beam of dish ancient support.
The invention has the further technical scheme that: and a supporting block III is further installed at the bottom of the position of the longitudinal arm beam where the clamping block clamps the workpiece, and the supporting block III is fixed on the bottom plate.
The further technical scheme of the invention is as follows: the movable supporting block assembly comprises a supporting block I, a telescopic pin guide sleeve, a supporting cylinder connecting pin, a stroke movable plate, a telescopic pin check ring, a stroke movable plate fixing sleeve and a stroke movable plate check ring; the support cylinder and the stroke movable plate fixing sleeve are respectively fixed at the top of the fixing seat, the extending end of the support cylinder is connected with one end of a support cylinder connecting pin, the other end of the support cylinder connecting pin is connected with the stroke movable plate, the stroke movable plate is provided with a tapered wedge surface, the middle lower part of the telescopic pin is provided with a through hole, and the through hole is provided with a tapered wedge inner wall; the stroke movable plate is arranged in the stroke movable plate fixing sleeve and transversely penetrates through the through hole of the telescopic pin, and the tapered surface of the stroke movable plate is in sliding fit with the tapered inner wall of the through hole; the stroke movable plate check ring is used for limiting the stroke of the stroke movable plate and is arranged on the fixed seat at the end part of the stroke movable plate fixed sleeve; the telescopic pin guide sleeve is arranged on the bottom plate, the telescopic pin sequentially penetrates through the stroke movable plate fixing sleeve, the fixing seat, the bottom plate and the telescopic pin guide sleeve, and then the top of the telescopic pin guide sleeve is connected with a supporting block I, and the supporting block I is supported at the bottom of a longitudinal arm beam at the mounting position of a disc ancient support of a workpiece; the bottom of the telescopic pin is limited by a telescopic pin check ring arranged at the bottom end of the stroke movable plate fixing sleeve.
The further technical scheme of the invention is as follows: the bottom plate is transversely provided with a guide rail installation groove; the pressing anti-vibration assembly comprises a hydraulic cylinder, a guide rail sliding block connecting block, a pressing fixed seat, a pressing adjusting device, a connecting support, a fastening fixed plate and a fastening connecting pin; the guide rail is arranged in the guide rail mounting groove of the bottom plate; the hydraulic cylinders, the guide rail sliding blocks, the guide rail sliding block connecting blocks, the pressing fixing seats, the pressing adjusting devices, the connecting supports, the fastening fixing plates and the fastening connecting pins are arranged symmetrically; the pneumatic cylinder install in the bottom of bottom plate, the one end that stretches out the end and the fastening connection round pin of pneumatic cylinder is connected, the other end of fastening connection round pin passes the fastening fixed plate and locks through the nut on the fastening fixed plate terminal surface, the bottom fixed connection of fastening fixed plate and connection support, the guide rail slider install on the guide rail and with guide rail sliding fit, the bottom of guide rail slider and the top fixed connection of connection support, the guide rail slider still is connected with the one end that compresses tightly the fixing base through the guide rail slider connecting block, the other end that compresses tightly the fixing base is connected with compressing tightly adjusting device, compressing tightly adjusting device compresses tightly on the ancient support of dish of work piece.
The invention has the further technical scheme that: the pressing adjusting device comprises a pressing screw and a locking nut, and the pressing screw is connected to the end face of the pressing fixing seat in a locking mode through the locking nut.
The further technical scheme of the invention is as follows: the tool further comprises a coarse positioning guide assembly, wherein the coarse positioning guide assembly comprises a fixing pin, a nylon protective sleeve, a pressing block and a screw; the fixed pin be the type of falling T structure that constitutes by base and pin, the base fixed mounting of ni fixed pin is on the bottom plate at work piece horizontal arm roof beam both sides and both ends, nylon protective sheath cover on the pin of fixed pin, the briquetting pass through the screw rod compress tightly and install at the pin top of fixed pin.
Due to the adoption of the structure, compared with the prior art, the numerical control machining universal positioning tool for the rear shaft assembly has the following beneficial effects:
1. simple operation
The invention comprises a fixed seat, a bottom plate, two sets of clamping assemblies, two sets of movable supporting block assemblies and two sets of shaft sleeve positioning and pressing assemblies, wherein the two sets of shaft sleeve positioning and pressing assemblies are symmetrically arranged on the bottom plate, and the two sets of clamping assemblies and the two sets of movable supporting block assemblies are respectively and symmetrically arranged on the fixed seat and the bottom plate. The invention can realize the positioning and the pressing of the shaft sleeve of the workpiece through two sets of shaft sleeve positioning and pressing components; the clamp can be clamped on the longitudinal beam on one side of the disc ancient support of the workpiece through two sets of clamping assemblies, and can be supported at the bottom of the longitudinal beam at the mounting position of the disc ancient support of the workpiece through two sets of movable support block assemblies. Therefore, the invention can realize automatic and rapid positioning and clamping of the rear axle assembly, does not need manual local clamping, local adjustment and local processing, and has simpler operation.
2. High production efficiency
The invention can realize automatic and rapid positioning and clamping of the rear axle assembly, does not need manual local clamping, local adjustment and local processing, can be completed by one-time clamping, and has higher production efficiency.
3. Can meet the requirement of rapid adjustment of workpieces
When the tool is used, the rear shaft assembly is placed on the tool, the first air cylinder in the shaft sleeve positioning and pressing assembly moves, the shaft sleeve positioning pin is inserted into a shaft sleeve of a workpiece, the second air cylinder moves to press the pressing block to press the shaft sleeve end face of the workpiece, the shaft sleeve end face of the workpiece is attached to the end face of a shaft sleeve positioning datum, the supporting air cylinder in the movable supporting block assembly moves, the telescopic pin rises, the supporting block I supports against the workpiece, the clamping block in the clamping assembly automatically rotates 45 degrees to clamp the workpiece, and meanwhile, the hydraulic cylinder in the pressing anti-vibration assembly moves in place to press the adjusting device to support against the workpiece to prevent the workpiece from vibrating during numerical control machining. When the workpiece adjusting device is used, if the adjustment is locally needed, the air cylinder or the hydraulic cylinder of the part can be controlled to move, so that the workpiece can be quickly adjusted.
In addition, the movable supporting block assembly is provided with a gasket below the supporting block I, so that the movable supporting block assembly can be suitable for adjusting the diameters of different longitudinal arm beams, namely, can be quickly adjusted, and when a workpiece is installed in place, the supporting block I can automatically move to prop against the workpiece through an oil cylinder.
4. Rear axle assembly processing capable of meeting different wheelbases
According to the invention, the shaft sleeves of rear shaft assemblies with different wheelbases can be positioned and compressed by controlling the extension lengths of the first cylinder and the second cylinder in the shaft sleeve positioning and compressing assembly; the rear axle assemblies with different wheelbases can be clamped by controlling different rotating angles of the clamping blocks in the clamping assembly. In addition, the compression adjusting device in the compression anti-vibration assembly comprises a compression screw and a locking nut, and the compression screw is connected to the end face of the compression fixing seat in a locking mode through the locking nut. The compression of the rear axle assemblies with different wheelbases can be adjusted by adjusting the length of the compression screws at the two ends exposed out of the end faces of the compression fixing seats.
Therefore, the rear axle assembly processing tool can meet the requirements of rear axle assembly processing with different wheel bases, and has a wider application range.
5. Reliable structure
In the movable support block assembly, the extending end of a support cylinder is connected with one end of a support cylinder connecting pin, the other end of the support cylinder connecting pin is connected with a stroke movable plate, the stroke movable plate is provided with a tapered wedge surface, the middle lower part of a telescopic pin is provided with a through hole, and the through hole is provided with a tapered wedge inner wall; the stroke movable plate is arranged in the stroke movable plate fixing sleeve and transversely penetrates through the through hole of the telescopic pin, and the tapered surface of the stroke movable plate is in sliding fit with the tapered inner wall of the through hole; the stroke movable plate is driven to move left and right through the supporting cylinder, and then the left and right movement of the stroke movable plate is converted into the up-and-down movement of the telescopic pin through the sliding fit between the tapered surface of the stroke movable plate and the tapered inner wall of the telescopic pin, so that the telescopic pin is extended and retracted, and the bottom of the longitudinal beam at the mounting position of the ancient support of the workpiece is reliably supported.
In addition, the invention also comprises a rough positioning guide assembly which can be used for rough positioning and guiding the workpiece, and also can protect the workpiece after surface treatment through a nylon protective sleeve on the rough positioning guide assembly so as to prevent the workpiece from being damaged in the machining process.
The technical features of the universal positioning tool for numerical control machining of the rear axle assembly according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1: the invention discloses a front view of a numerical control machining universal positioning tool for a rear shaft assembly,
FIG. 2: in the top view of figure 1 of the drawings,
FIG. 3: in the left-hand cross-sectional view of figure 1,
FIG. 4: the cross-sectional view a-a of figure 2,
FIG. 5: the view in the direction of M of figure 4,
FIG. 6: the cross-sectional view B-B of figure 2,
FIG. 7: the cross-sectional view C-C of figure 2,
FIG. 8: the cross-sectional view D-D of figure 2,
FIG. 9: the invention discloses a three-dimensional structure schematic diagram of a numerical control machining universal positioning tool for a rear axle assembly,
FIG. 10: a schematic three-dimensional structure of the workpiece;
in the above drawings, the reference numerals for the various parts are as follows:
1-a fixed seat is arranged on the base,
2-a bottom plate, 201-a guide rail installation groove,
3-clamping the assembly to the base plate,
301-guide sleeve, 302-connecting pin, 303-clamping block, 304-clamping block supporting seat,
305-rotation pin, 306-rotation cylinder fixing seat, 307-rotation cylinder,
4-a coarse positioning and guiding component is arranged,
401-fixed pin, 4011-base, 4012-pin, 402-nylon protective sleeve, 403-pressing block, 404-screw,
5-pressing the anti-vibration component,
501-hydraulic cylinder, 502-guide rail, 503-guide rail slide block, 504-guide rail slide block connecting block,
505-pressing fixed seat, 506-pressing adjusting device, 5061-pressing screw, 5062-elastic gasket,
507-connecting support, 508-nut, 509-fastening fixing plate, 510-fastening connecting pin,
6-a movable supporting block component, wherein,
601-supporting block I, 602-telescopic pin, 603-telescopic pin guide sleeve, 604-supporting cylinder, 605-supporting cylinder connecting pin,
606-stroke movable plate, 607-telescopic pin retainer ring, 608-stroke movable plate fixing sleeve, 609-stroke movable plate retainer ring,
7-a shaft sleeve positioning and pressing component,
701-a first air cylinder, 702-a first air cylinder fixing seat, 703-a fixing seat, 704-a movable pin, 705-a movable pin sleeve,
706-shaft sleeve positioning reference plate, 707-shaft sleeve positioning pin, 708-pressing block, 709-pressing block movable pin,
710-second cylinder fixing base, 711-second cylinder,
8-supporting block II, 801-cushion block, 9-supporting block III,
10-workpiece, 1001-transverse arm beam, 1002-longitudinal arm beam, 1003-shaft sleeve and 1004-disc ancient support.
Detailed Description
Example one
The utility model provides a general location frock of rear axle assembly numerical control processing, includes fixing base 1, bottom plate 2, two sets of clamping component 3, thick location guide subassembly 4, compresses tightly and prevents quivering subassembly 5, two sets of movable support block subassemblies 6, two sets of axle sleeve location compress tightly subassembly 7, wherein:
fixing base 1 be the hollow box structure that forms by the steel sheet welding, bottom plate 2 install on fixing base 1's top, bottom plate 2 is along transversely being equipped with guide rail mounting groove 201.
The two sets of shaft sleeve positioning and pressing components 7 are symmetrically arranged on the bottom plate 2 and are used for positioning and pressing shaft sleeves 1003 of the workpiece 10; the shaft sleeve positioning and pressing assembly 7 comprises a first air cylinder 701, a first air cylinder fixing seat 702, a fixing seat 703, a movable pin 704, a movable pin sleeve 705, a shaft sleeve positioning reference plate 706, a shaft sleeve positioning pin 707, a pressing block 708, a pressing block movable pin 709, a second air cylinder fixing seat 710 and a second air cylinder 711; the first air cylinder 701 is installed at one end of a fixed seat 703 through a first air cylinder fixed seat 702, and the fixed seat 703 is installed on the bottom plate 2; the movable pin 704 is installed in the fixed seat 703 through a movable pin bushing 705, and one end of the movable pin 704 is connected with the extending end of the first cylinder 701; the other end of the movable pin 704 is connected with a shaft sleeve positioning pin 707 for positioning in an inner hole of a shaft sleeve 1003 of a workpiece; the shaft sleeve positioning datum plate 706 is used for positioning one end face of a shaft sleeve 1003 of a workpiece, and the shaft sleeve positioning datum plate 706 is connected to the end face of the movable pin sleeve 705; the second cylinder 711 is installed at the other end of the fixing seat 703 opposite to the first cylinder 701 through the second cylinder fixing seat 710, the pressing block movable pin 709 is installed in the second cylinder fixing seat 710, one end of the pressing block movable pin 709 is connected with the extending end of the second cylinder 711, and the other end of the pressing block movable pin 709 is connected with the pressing block 708 which is used for pressing the end face of the other end of the shaft sleeve 1003 of the workpiece 10. A supporting block ii 8 is further mounted at the bottom of the bushing 1003 of the workpiece 10, and the supporting block ii 8 is fixed on the bottom plate 2 through a cushion block 801.
The two sets of clamping assemblies 3 are symmetrically arranged on the fixed seat 1 and the bottom plate 2 and are used for clamping the trailing arm beam 1002 at one side of the disc-shaped support 1004 of the workpiece 10; the clamping assembly 3 comprises a guide sleeve 301, a connecting pin 302, a clamping block 303, a clamping block supporting seat 304, a rotating pin 305, a rotating cylinder fixing seat 306 and a rotating cylinder 307; the rotary cylinder 307 is installed in the fixed seat 1 through the rotary cylinder fixed seat 306, the guide sleeve is fixed on the bottom plate 2, one end of the rotary pin 305 is connected with the end portion of the piston of the rotary cylinder 307, the other end of the rotary pin 305 extends out of the fixed seat 1, and is connected with the clamping block 303 through the connecting pin 302 after sequentially passing through the bottom plate 2 and the guide sleeve 301, one end of the clamping block 303 is installed on the bottom plate 2 through the clamping block supporting seat 304, and the other end of the clamping block 303 is clamped on the longitudinal arm beam 1002 on one side of the disc ancient support 1004 of the workpiece 10. A supporting block III 9 is further installed at the bottom of the position of the longitudinal arm beam 1002 where the clamping block 303 clamps the workpiece 10, and the supporting block III 9 is fixed on the bottom plate 2.
The two sets of movable support block assemblies 6 are symmetrically arranged on the fixed seat 1 and the bottom plate 2 and are used for supporting the bottom of the longitudinal arm beam 1002 at the mounting position of the disc-ancient support 1004 of the workpiece 10; the movable supporting block assembly 6 comprises a supporting block I601, a telescopic pin 602, a telescopic pin guide sleeve 603, a supporting cylinder 604, a supporting cylinder connecting pin 605, a stroke movable plate 606, a telescopic pin retainer ring 607, a stroke movable plate fixing sleeve 608 and a stroke movable plate retainer ring 609; the supporting cylinder 604 and the stroke movable plate fixing sleeve 608 are respectively fixed at the top of the fixing seat 1, the extending end of the supporting cylinder 604 is connected with one end of a supporting cylinder connecting pin 605, the other end of the supporting cylinder connecting pin 605 is connected with the stroke movable plate 606, the stroke movable plate 606 has a tapered surface, the middle lower part of the telescopic pin 602 is provided with a through hole, and the through hole has a tapered inner wall; the stroke movable plate 606 is installed in the stroke movable plate fixing sleeve 608 and transversely passes through the through hole of the telescopic pin 602, and the tapered surface of the stroke movable plate 606 is in sliding fit with the tapered inner wall of the through hole; the stroke movable plate check ring 609 is used for limiting the stroke of the stroke movable plate 606, and the stroke movable plate check ring 609 is installed on the fixed seat 1 at the end part of the stroke movable plate fixed sleeve 608; the telescopic pin guide sleeve 603 is arranged on the bottom plate 2, the telescopic pin 602 sequentially passes through the stroke movable plate fixing sleeve 608, the fixed seat 1, the bottom plate 2 and the telescopic pin guide sleeve 603, and then the top of the telescopic pin is connected with a supporting block I601, and the supporting block I601 is supported at the bottom of the trailing arm beam 1002 at the mounting position of the disc ancient support 1004 of the workpiece 10; the bottom of the retractable pin 602 is limited by a retractable pin retainer ring 607 mounted at the bottom of the travel movable plate fixing sleeve 608. A gasket is further installed below the supporting block I601, and the adjusting device can be suitable for adjusting the diameters of different longitudinal arm beams, namely, can be adjusted quickly.
The pressing anti-vibration assembly 5 comprises a hydraulic cylinder 501, a guide rail 502, a guide rail sliding block 503, a guide rail sliding block connecting block 504, a pressing fixing seat 505, a pressing adjusting device 506, a connecting support 507, a fastening fixing plate 509 and a fastening connecting pin 510; the guide rail 502 is arranged in the guide rail installation groove 201 of the bottom plate 2; the hydraulic cylinder 501, the guide rail sliding block 503, the guide rail sliding block connecting block 504, the pressing fixing seat 505, the pressing adjusting device 506, the connecting support 507, the fastening fixing plate 509 and the fastening connecting pin 510 are all provided in two sets and are symmetrically arranged; the hydraulic cylinder 501 is installed at the bottom of the bottom plate 2, the extending end of the hydraulic cylinder 501 is connected with one end of a fastening connecting pin 510, the other end of the fastening connecting pin 510 penetrates through a fastening fixing plate 509 and is locked by a nut 508 on the end face of the fastening fixing plate 509, the fastening fixing plate 509 is fixedly connected with the bottom of a connecting support 507, a guide rail slider 503 is installed on a guide rail 502 and is in sliding fit with the guide rail 502, the bottom end of the guide rail slider 503 is fixedly connected with the top of the connecting support 507, the guide rail slider 503 is also connected with one end of a pressing fixing seat 505 by a guide rail slider connecting block 504, the other end of the pressing fixing seat 505 is connected with a pressing adjusting device 506, and the pressing adjusting device 506 is pressed; the compression adjusting device 506 comprises a compression screw 5061 and a locking nut 5062, the compression screw 5061 is locked and connected to the end face of the compression fixing seat 505 through the locking nut 5062, and compression on rear axle assemblies with different wheelbases can be adjusted by adjusting the length of the compression screws 5061 at two ends exposed out of the end face of the compression fixing seat 505.
The coarse positioning guide assembly 4 comprises a fixing pin 401, a nylon protective sleeve 402, a pressing block 403 and a screw 404; the fixing pin 401 is an inverted T-shaped structure formed by a base 4011 and a stud 4012, the base 4011 of the fixing pin 401 is fixedly installed on the bottom plates 2 at two sides and two ends of the workpiece cross arm beam 1001, and the nylon protective sleeve 402 is sleeved on the stud 4012 of the fixing pin 401 so as to protect the workpiece after surface treatment and prevent the workpiece from being damaged in the machining process; the pressing block 403 is mounted on the top of the pin 4012 of the fixing pin 401 through the screw 404 so as to press the nylon protective sleeve 402.
The input ends of a first cylinder 701 and a second cylinder 711 in the shaft sleeve positioning and compressing assembly 7 and a support cylinder 604 in the movable support block assembly 6 are all connected with the signal output end of a numerical control machine control system, and the signal output end and the signal input end of the numerical control machine control system are respectively connected with a switch button A, a switch button B and a switch button C; the first cylinder 701 is controlled to be started and stopped by a switch button A, the second cylinder 711 is controlled to be started and stopped by a switch button B, and the support cylinder 604 is controlled to be started and stopped by a switch button C. The numerical control machine control system is in the prior art.
The working principle of the invention is as follows:
the rear axle assembly is placed on the tool, the switch button A is pressed, the first air cylinder 701 in the shaft sleeve positioning and pressing assembly 7 moves, the shaft sleeve positioning pin 707 is inserted into a shaft sleeve of a workpiece, the switch button B is pressed, the second air cylinder 711 moves to press the shaft sleeve end face of the workpiece by the pressing block 708, the shaft sleeve end face of the workpiece is attached to the end face of the shaft sleeve positioning datum 706, the switch button C is pressed, the supporting air cylinder 604 in the movable supporting block assembly 6 moves, the telescopic pin 602 rises, the supporting block I601 supports the workpiece, the clamping block 303 in the clamping assembly 3 automatically rotates 45 degrees to clamp the workpiece, meanwhile, the hydraulic cylinder 501 in the compression anti-vibration assembly 5 moves in place to press the adjusting device 506 to support the workpiece to prevent the workpiece from vibrating during numerical control machining, and after the steps are completed, the disc ancient support end face of the workpiece can be machined in the.
Claims (9)
1. The utility model provides a general location frock of rear axle assembly numerical control processing which characterized in that: the clamping device comprises a fixed seat (1), a bottom plate (2), two sets of clamping assemblies (3), two sets of movable supporting block assemblies (6) and two sets of shaft sleeve positioning and pressing assemblies (7), wherein the bottom plate (2) is arranged at the top end of the fixed seat (1), and the two sets of shaft sleeve positioning and pressing assemblies (7) are symmetrically arranged on the bottom plate (2) and are used for positioning and pressing a shaft sleeve (1003) of a workpiece; the two sets of clamping assemblies (3) and the two sets of movable supporting block assemblies (6) are respectively and symmetrically arranged on the fixed seat (1) and the bottom plate (2), and the clamping assemblies (3) are used for clamping a longitudinal arm beam (1002) on one side of a disc ancient support (1004) of a workpiece; the movable supporting block assembly (6) is used for supporting the bottom of the longitudinal arm beam (1002) at the mounting position of the disc ancient support (1004) of the workpiece.
2. The numerical control machining universal positioning tool for the rear axle assembly according to claim 1, characterized in that: the shaft sleeve positioning and pressing assembly (7) comprises a first air cylinder (701), a first air cylinder fixing seat (702), a fixing seat (703), a movable pin (704), a movable pin sleeve (705), a shaft sleeve positioning reference plate (706), a shaft sleeve positioning pin (707), a pressing block (708), a pressing block movable pin (709), a second air cylinder fixing seat (710) and a second air cylinder (711); the first air cylinder (701) is installed at one end of the fixed seat (703) through the first air cylinder fixed seat (702), and the fixed seat (703) is installed on the bottom plate (2); the movable pin (704) is installed in the fixed seat (703) through a movable pin sleeve (705), and one end of the movable pin (704) is connected with the extending end of the first air cylinder (701); the other end of the movable pin (704) is connected with a shaft sleeve positioning pin (707) which is used for being positioned in an inner hole of a shaft sleeve (1003) of a workpiece; the shaft sleeve positioning reference plate (706) is used for positioning one end face of a shaft sleeve (1003) of a workpiece, and the shaft sleeve positioning reference plate (706) is connected to the end face of the movable pin sleeve (705); the second cylinder (711) is installed at the other end of the fixing seat (703) opposite to the first cylinder (701) through the second cylinder fixing seat (710), the pressing block movable pin (709) is installed in the second cylinder fixing seat (710), one end of the pressing block movable pin (709) is connected with the extending end of the second cylinder (711), and the other end of the pressing block movable pin (709) is connected with the pressing block (708) used for pressing the end face of the other end of the shaft sleeve (1003) of the workpiece.
3. The numerical control machining universal positioning tool for the rear axle assembly according to claim 2, characterized in that: and a supporting block II (8) is further installed at the bottom of the shaft sleeve of the workpiece, and the supporting block II (8) is fixed on the bottom plate (2) through a cushion block (801).
4. The numerical control machining universal positioning tool for the rear axle assembly according to claim 1, characterized in that: the clamping assembly (3) comprises a guide sleeve (301), a connecting pin (302), a clamping block (303), a clamping block supporting seat (304), a rotating pin (305), a rotating cylinder fixing seat (306) and a rotating cylinder (307); revolving cylinder (307) install in fixing base (1) through revolving cylinder fixing base (306), the uide bushing fix on bottom plate (2), the piston end connection of one end and revolving cylinder (307) of swivel pin (305), the other end of swivel pin (305) stretches out fixing base (1) to pass bottom plate (2) in proper order, be connected with clamp piece (303) through connecting pin (302) behind uide bushing (301), the one end of clamp piece (303) is passed through clamp piece supporting seat (304) and is installed on bottom plate (2), the other end clamp of clamp piece (303) is on indulging arm roof beam (1002) of dish ancient support (1004) one side of work piece.
5. The rear axle assembly numerical control machining general positioning tool according to claim 4, characterized in that: the bottom of the position of the longitudinal arm beam (1002) where the clamping block (303) clamps the workpiece is also provided with a supporting block III (9), and the supporting block III (9) is fixed on the bottom plate (2).
6. The numerical control machining universal positioning tool for the rear axle assembly according to claim 1, characterized in that: the movable supporting block assembly (6) comprises a supporting block I (601), a telescopic pin (602), a telescopic pin guide sleeve (603), a supporting cylinder (604), a supporting cylinder connecting pin (605), a stroke movable plate (606), a telescopic pin retaining ring (607), a stroke movable plate fixing sleeve (608) and a stroke movable plate retaining ring (609); the support cylinder (604) and the stroke movable plate fixing sleeve (608) are respectively fixed at the top of the fixing seat (1), the extending end of the support cylinder (604) is connected with one end of a support cylinder connecting pin (605), the other end of the support cylinder connecting pin (605) is connected with the stroke movable plate (606), the stroke movable plate (606) is provided with a wedge-shaped surface, the middle lower part of the telescopic pin (602) is provided with a through hole, and the through hole is provided with a wedge-shaped inner wall; the stroke movable plate (606) is installed in the stroke movable plate fixing sleeve (608) and transversely penetrates through a through hole of the telescopic pin (602), and the tapered surface of the stroke movable plate (606) is in sliding fit with the tapered inner wall of the through hole; the stroke movable plate check ring (609) is used for limiting the stroke of the stroke movable plate (606), and the stroke movable plate check ring (609) is installed on the fixed seat (1) at the end part of the stroke movable plate fixed sleeve (608); the telescopic pin guide sleeve (603) is installed on the bottom plate (2), the telescopic pin (602) sequentially penetrates through the stroke movable plate fixing sleeve (608), the fixing seat (1), the bottom plate (2) and the telescopic pin guide sleeve (603), the top of the telescopic pin guide sleeve is connected with the supporting block I (601), and the supporting block I (601) is supported at the bottom of the longitudinal arm beam (1002) at the mounting position of the disc ancient support of the workpiece; the bottom of the telescopic pin (602) is limited by a telescopic pin retainer ring (607) arranged at the bottom end of the stroke movable plate fixing sleeve (608).
7. The numerical control machining universal positioning tool for the rear axle assembly according to claim 1, characterized in that: the bottom plate (2) is transversely provided with a guide rail installation groove (201); the pressing anti-vibration assembly (5) comprises a hydraulic cylinder (501), a guide rail (502), a guide rail sliding block (503), a guide rail sliding block connecting block (504), a pressing fixing seat (505), a pressing adjusting device (506), a connecting support (507), a fastening fixing plate (509) and a fastening connecting pin (510); the guide rail (502) is arranged in a guide rail installation groove (201) of the bottom plate (2); the hydraulic cylinder (501), the guide rail sliding block (503), the guide rail sliding block connecting block (504), the pressing fixing seat (505), the pressing adjusting device (506), the connecting support (507), the fastening fixing plate (509) and the fastening connecting pin (510) are arranged in two sets and are symmetrically arranged; the hydraulic cylinder (501) is arranged at the bottom of the bottom plate (2), the extending end of the hydraulic cylinder (501) is connected with one end of a fastening connecting pin (510), the other end of the fastening connecting pin (510) penetrates through a fastening fixing plate (509) and is locked by a nut (508) on the end face of the fastening fixing plate (509), the fastening fixing plate (509) is fixedly connected with the bottom of a connecting support (507), the guide rail sliding block (503) is installed on the guide rail (502) and is in sliding fit with the guide rail (502), the bottom end of the guide rail sliding block (503) is fixedly connected with the top of the connecting support (507), the guide rail sliding block (503) is further connected with one end of the pressing fixing seat (505) through a guide rail sliding block connecting block (504), the other end of the pressing fixing seat (505) is connected with the pressing adjusting device (506), and the pressing adjusting device (506) is pressed on the disc ancient support (1004) of the workpiece.
8. The numerical control machining universal positioning tool for the rear axle assembly according to claim 7, characterized in that: the compression adjusting device (506) comprises a compression screw (5061) and a locking nut (5062), and the compression screw (5061) is locked and connected to the end face of the compression fixing seat (505) through the locking nut (5062).
9. The rear axle assembly numerical control machining general positioning tool according to any one of claims 1 to 8, characterized in that: the tool further comprises a coarse positioning guide assembly (4), wherein the coarse positioning guide assembly (4) comprises a fixing pin (401), a nylon protective sleeve (402), a pressing block (403) and a screw (404); the fixing pin (401) be the type of falling T structure that comprises base (4011) and pintle (4012), the base (4011) fixed mounting of ni fixed pin (401) is on bottom plate (2) at work piece horizontal arm roof beam (1001) both sides and both ends, nylon protective sheath (402) cover on pintle (4012) of fixing pin (401), briquetting (403) pass through screw rod (404) compress tightly and install pintle (4012) top at fixing pin (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394247.1A CN111451817A (en) | 2020-05-11 | 2020-05-11 | General positioning tool for numerical control machining of rear axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394247.1A CN111451817A (en) | 2020-05-11 | 2020-05-11 | General positioning tool for numerical control machining of rear axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111451817A true CN111451817A (en) | 2020-07-28 |
Family
ID=71674218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010394247.1A Pending CN111451817A (en) | 2020-05-11 | 2020-05-11 | General positioning tool for numerical control machining of rear axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111451817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579813A (en) * | 2021-08-18 | 2021-11-02 | 南京工程学院 | Double-sided sawing and milling machine tool for hub shaft end face of rear shaft assembly |
-
2020
- 2020-05-11 CN CN202010394247.1A patent/CN111451817A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579813A (en) * | 2021-08-18 | 2021-11-02 | 南京工程学院 | Double-sided sawing and milling machine tool for hub shaft end face of rear shaft assembly |
| CN113579813B (en) * | 2021-08-18 | 2022-08-23 | 南京工程学院 | Double-sided sawing and milling machine tool for hub shaft end face of rear shaft assembly |
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