CN112621668B - Tool and method for disassembling and assembling spindle broach spring of machining center - Google Patents
Tool and method for disassembling and assembling spindle broach spring of machining center Download PDFInfo
- Publication number
- CN112621668B CN112621668B CN202011517043.9A CN202011517043A CN112621668B CN 112621668 B CN112621668 B CN 112621668B CN 202011517043 A CN202011517043 A CN 202011517043A CN 112621668 B CN112621668 B CN 112621668B
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- China
- Prior art keywords
- pressing plate
- spindle
- spring
- main shaft
- tail
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 48
- 208000010727 head pressing Diseases 0.000 claims abstract description 22
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
- B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
- B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a machining center spindle broach spring dismounting tool which comprises a spindle head pressing plate, wherein a head positioning device which is matched with a spindle head is arranged on the spindle head pressing plate, a yielding hole for avoiding a spindle broach sleeve is formed in the spindle head pressing plate, a plurality of screws are arranged on the spindle head pressing plate, nuts which are screwed with the screws are arranged on the screws, a spindle tail pressing plate is arranged on the screws below the nuts in a sliding mode, and a tail positioning device which is matched with the tail of the spindle is arranged on the spindle tail pressing plate. The invention also discloses a method for dismounting the spindle broach spring of the machining center, which can safely and quickly dismount the spindle broach spring, and can be used for measuring the broach spring force by installing a chest expander on site, thereby improving the maintenance quality and efficiency and having the characteristics of strong practicability and convenient use.
Description
Technical Field
The invention relates to the technical field of maintenance and disassembly, in particular to a tool and a method for disassembling and assembling a spindle broach spring of a machining center.
Background
The German HELLER machining center spindle broach spring is arranged in the spindle and is mainly used for tensioning the tool sleeve to firmly machine the tool, the broach force is within a certain range, and the product machined by the tool can be processed with high precision and the service life of the tool can be ensured; when the deviation of the main shaft broach occurs and the required pulling force is not achieved, or parts on the main shaft broach device fail, the main shaft is disassembled, the broach device is disassembled and overhauled, the main shaft broach spring force of the HELLER machining center is large and is up to 500 kg, the spring is required to be compressed when the broach spring is disassembled, the spring force pressed on the inner clamp spring is eliminated, the inner clamp spring can be taken down by the clamp spring pliers, and then the compressed spring is slowly loosened until the spring returns to a natural state, and the parts such as the spring on the broach device can be taken out. The prior art commonly used methods are as follows: 1. the main shaft is erected on a workbench of a rocker arm drilling machine tool, and the rocker arm is utilized to move the compression spring downwards; 2. standing the main shaft on a press, and compressing the spring by the tail of the main shaft against the positive pressure head; 3. one end of the main shaft is fixed, and the other end compresses the spring by a jack; the methods have great potential safety hazards, and the methods need to be cooperated by a plurality of persons, have long disassembly time, and especially have no method for measuring the broaching force after the broaching device is installed, the broaching force can be measured only by installing the main shaft on a machine tool, and if the broaching force is not proper, the main shaft can be disassembled again, the efficiency is low, the production is influenced, and the potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and one of the purposes is to provide a tool for disassembling and assembling a spindle broach spring of a machining center, which can safely and quickly disassemble and assemble the spindle broach spring.
The second purpose is a method for disassembling and assembling the spindle broach spring of the machining center, so that the spindle broach spring can be disassembled and assembled quickly, and meanwhile, a chest expander can be installed on site to measure the broach spring force, so that the maintenance quality and efficiency are improved, and meanwhile, potential safety hazards are eliminated.
The first technical scheme of the invention is as follows: the utility model provides a machining center main shaft broach spring assembly and disassembly tools, includes main shaft head clamp plate, main shaft head clamp plate on be equipped with the head positioner who suits with the main shaft head, main shaft head clamp plate on be equipped with the hole of stepping down of dodging the main shaft knife holder, main shaft head clamp plate on be equipped with many screws, the screw rod on be equipped with rather than the nut that connects soon, the screw rod of nut below on slide and be equipped with main shaft afterbody clamp plate, main shaft afterbody clamp plate on be equipped with the afterbody positioner who suits with the main shaft afterbody.
As a further improvement, the tail positioning device comprises a cylinder and a blind hole, wherein the blind hole is formed in the middle of the cylinder, and the blind hole and the yielding hole are positioned on the same axis.
Further, the head positioning device comprises a positioning column and a positioning groove, the positioning groove is formed in the middle of the positioning column, the positioning groove is communicated with the yielding hole, and the positioning groove and the yielding hole are located on the same axis.
Further, the diameter of the abdication hole is smaller than the width of the positioning groove, and the diameter of the abdication hole is larger than the outer diameter of the spindle tool sleeve.
Further, the screw and the nut are connected by adopting fine threads.
Further, the main shaft head pressing plate is provided with a plurality of pressing plate screw holes, the screw rod is screwed in the pressing plate screw holes, the main shaft tail pressing plate is provided with a plurality of pressing plate through holes, and the screw rod is inserted into the pressing plate through holes in a sliding mode.
The second technical scheme of the invention is as follows: a method for disassembling and assembling a spindle broach spring of a machining center includes the steps that a spindle is placed between a spindle tail pressing plate and a spindle head pressing plate which are connected through a screw, then a nut on the screw is rotated to drive the spindle tail pressing plate to extrude the spindle tail, the spring in the spindle is compressed and far away from an inner clamping spring, and finally the inner clamping spring is taken out, so that the spring of the spindle broach can be disassembled and replaced quickly.
As a further improvement, the specific operating steps are as follows:
step one, placing a main shaft between a main shaft head pressing plate and a main shaft tail pressing plate, enabling the main shaft head to be positioned on a head positioning device, and then rotating a nut on a screw rod to drive the main shaft tail pressing plate to extrude the main shaft tail, so that a spring in the main shaft is compressed and far away from an inner clamping spring;
taking out the inner clamping spring by using clamping spring pliers, slowly balancing and loosening the nut until no spring force exists, taking away the pressing plate at the tail part of the main shaft, and taking out the spring;
thirdly, placing the overhauled or replaced spring into the main shaft, rotating a nut on the screw rod to drive a pressing plate at the tail part of the main shaft to extrude the tail part of the main shaft, compressing the spring in the main shaft, and installing an inner clamping spring by using clamping spring pliers;
and fourthly, after the spring is installed, the nut is rotated to overcome the spring force by utilizing the tension of the screw rod through the pressing plate, the clamping jaw ejector rod is ejected out until the clamping jaw is opened to be capable of being assembled into the chest expander, then the nut is loosened, the chest expander is clamped and tensioned until the nut is not acted by the spring force, and the reading of the chest expander is read at the moment, namely the broaching force of the main shaft.
Advantageous effects
Compared with the prior art, the invention has the following advantages:
the tool and the method have the advantages that the main shaft is placed between the main shaft tail pressing plate and the main shaft head pressing plate which are connected through the screw, and then the nut on the screw is rotated to drive the main shaft tail pressing plate to extrude the main shaft tail, so that the main shaft broach spring force is overcome, the main shaft broach device is safely, quickly and accurately detached or installed, meanwhile, the chest expander can be installed on site to measure the broach spring force, the tool is simple and portable to use, the main shaft is not damaged and the precision of the main shaft is not affected, the potential safety hazard is eliminated while the maintenance quality and efficiency are improved, the labor intensity is effectively reduced, the working efficiency is improved, and the tool has the characteristics of strong practicability and convenience in use.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic diagram of the front view of the spring of the present invention;
FIG. 3 is a schematic view of the structure of the present invention for measuring spring force;
fig. 4 is a schematic diagram of a spindle structure in the prior art.
Wherein: the clamping device comprises a 1-nut, a 2-pressing plate through hole, a 3-spindle tail pressing plate, a 4-tail positioning device, a 5-screw, a 6-head positioning device, a 7-yielding hole, an 8-pressing plate screw hole, a 9-spindle head pressing plate, a 10-cylinder, an 11-blind hole, a 12-inner clamping spring, a 13-spring, a 14-clamping jaw, a 15-spindle tail, a 16-spindle head, a 17-positioning column, an 18-positioning groove, a 19-chest expander and a 20-spindle knife sleeve.
Detailed Description
The invention will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-4, the invention relates to a tool for disassembling and assembling a spindle broach spring in a machining center, which comprises a spindle head pressing plate 9, wherein a head positioning device 6 which is suitable for a spindle head 16 is arranged on the spindle head pressing plate 9, a yielding hole 7 which is used for avoiding a spindle broach sleeve 20 is arranged on the spindle head pressing plate 9, a plurality of screws 5 are arranged on the spindle head pressing plate 9, a nut 1 which is screwed with the screws 5 is arranged on the screws 5, a spindle tail pressing plate 3 is arranged on the screws 5 below the nuts 1 in a sliding manner, and a tail positioning device 4 which is suitable for a spindle tail 15 is arranged on the spindle tail pressing plate 3, so that the spindle broach spring is disassembled or assembled safely, rapidly and accurately by tightening the screws 5 of the nuts 1 and overcoming the broach spring force.
Specifically, the tail positioning device 4 comprises a cylinder 10 and a blind hole 11, the blind hole 11 is formed in the middle of the cylinder 10, the blind hole 11 and the yielding hole 7 are located on the same axis, axial and radial force is limited, the tail of the spindle is prevented from being deviated when the spindle spring is compressed, safety accidents are avoided, and the spindle can be transversely placed.
Preferably, the head positioning device 6 comprises a positioning column 17 and a positioning groove 18, the positioning groove 18 is arranged at the middle position of the positioning column 17, the positioning groove 18 is communicated with the yielding hole 7, the positioning groove 18 and the yielding hole 7 are positioned on the same axis, and the spindle head 16 is placed on the head positioning device 6 to prevent the spindle head from shifting when the spindle spring is compressed.
Further, the diameter of the relief hole 7 is smaller than the width of the positioning groove 18, and the diameter of the relief hole 7 is larger than the outer diameter of the spindle sleeve 20, and the relief hole 7 is mainly used for installing the sleeve and measuring the spring force.
Further, the screw 5 and the nut 1 are connected by adopting fine threads, so that the screw can rotate easily and has stronger self-locking capability.
Further, a plurality of pressing plate screw holes 8 are formed in the pressing plate 9 at the head of the main shaft, the screw rod 5 is connected to the pressing plate screw holes 8 in a screwed mode, a plurality of pressing plate through holes 2 are formed in the pressing plate 3 at the tail of the main shaft, and the screw rod 5 is connected to the pressing plate through holes 2 in a sliding mode.
A method for disassembling and assembling a spindle broach spring of a machining center comprises the steps of placing a spindle between a spindle tail pressing plate 3 and a spindle head pressing plate 9 which are connected through a screw 5, then rotating a nut 1 on the screw 5 to drive the spindle tail pressing plate 3 to extrude a spindle tail 15, enabling a spring 13 in the spindle to be compressed and far away from an inner clamping spring 12, and finally taking out the inner clamping spring 12, so that the spring 13 of the spindle broach can be disassembled and replaced quickly.
When the tool for disassembling and assembling the spindle broach spring of the machining center is used, firstly, the disassembled spindle head 16 is placed on the head positioning device 6 of the spindle head pressing plate 9, the screw 5 is screwed on the head positioning device 6, the screw 5 penetrates through the pressing plate through hole 2 of the spindle tail pressing plate 3, the tail positioning device 4 is aligned with the spindle tail 15, the nut 1 is screwed on in balance, the nut 1 is strongly twisted, when the spring 13 is compressed, the inner clamping spring 12 on the spindle is not acted by the spring force, the inner clamping spring 12 is taken out by the clamping spring pliers, the nut 1 is slowly balanced and loosened until no spring force exists, the spindle tail pressing plate 3 is taken away, the spring 13 is taken out, then the overhauled or replaced spring 13 is placed in the spindle, the nut 1 on the screw 5 is rotated to drive the spindle tail pressing plate 3 to extrude the spindle head tail 15, the spring 13 in the spindle is compressed, the inner clamping spring 12 is installed by the clamping pliers, after the spring 13 is installed, the nut 1 is rotated, the clamping jaws are ejected by the pressing plate through the tension of the screw 5 until 14 can be assembled into a puller 19, then the puller 1 is loosened, the puller jaw 19 is not acted by the clamping jaws, and the puller jaw 19 is not stressed by the spring force, and the puller jaw 19 can be read, and the puller is also can be disassembled, so that the spindle broach can be disassembled, and the puller tool can be stably, and the puller tool can be disassembled.
While only the preferred embodiments of the present invention have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (5)
1. The method for disassembling and assembling the spindle broach spring of the machining center is characterized by comprising a spindle head pressing plate (9), wherein a head positioning device (6) which is matched with a spindle head (16) is arranged on the spindle head pressing plate (9), a yielding hole (7) for avoiding a spindle broach sleeve (20) is formed in the spindle head pressing plate (9), a plurality of screws (5) are arranged on the spindle head pressing plate (9), a nut (1) screwed with the screws (5) is arranged on the screws (5), a spindle tail pressing plate (3) is slidably arranged on the screws (5) below the nuts (1), a tail positioning device (4) which is matched with a spindle tail (15) is arranged on the spindle tail pressing plate (3), the tail positioning device (4) comprises a cylinder (10) and a blind hole (11), the blind hole (11) is formed in the middle position of the cylinder (10), the blind hole (11) and the yielding hole (7) are positioned on the same axis, the head positioning device (6) comprises a positioning post (17) and a positioning groove (18), the positioning post (18) is formed in the middle position of the positioning post (18), the positioning groove (18) and the abdication hole (7) are positioned on the same axis; the method comprises the steps of placing a main shaft between a main shaft tail pressing plate (3) and a main shaft head pressing plate (9) which are connected through a screw rod (5), then rotating a nut (1) on the screw rod (5) to drive the main shaft tail pressing plate (3) to extrude a main shaft tail (15), enabling a spring (13) in the main shaft to be compressed away from an inner clamp spring (12), and finally taking out the inner clamp spring (12), so that the spring (13) of a main shaft broach can be rapidly disassembled and replaced.
2. The method for assembling and disassembling the spindle broach spring of the machining center according to claim 1, wherein the diameter of the relief hole (7) is smaller than the width of the positioning groove (18), and the diameter of the relief hole (7) is larger than the outer diameter of the spindle sleeve (20).
3. The method for dismounting the spindle broach spring of the machining center according to claim 1, wherein the screw (5) and the nut (1) are connected by adopting fine threads.
4. The method for disassembling and assembling the spindle broach spring of the machining center according to claim 1, wherein a plurality of pressing plate screw holes (8) are formed in a spindle head pressing plate (9), the screw rod (5) is screwed to the pressing plate screw holes (8), a plurality of pressing plate through holes (2) are formed in a spindle tail pressing plate (3), and the screw rod (5) is slidably inserted into the pressing plate through holes (2).
5. The method for assembling and disassembling the spindle broach spring of the machining center according to claim 1, wherein the specific operation steps are as follows:
firstly, placing a main shaft between a main shaft head pressing plate (9) and a main shaft tail pressing plate (3), positioning a main shaft head (16) on a head positioning device (6), and then rotating a nut (1) on a screw (5) to drive the main shaft tail pressing plate (3) to extrude a main shaft tail (15), so that a spring (13) in the main shaft is compressed away from an inner clamping spring (12);
taking out the inner clamping spring (12) by using clamping spring pliers, slowly balancing and loosening the nut (1) until no spring force exists, taking away the pressing plate (3) at the tail part of the main shaft, and taking out the spring (13);
thirdly, placing the overhauled or replaced spring (13) into the main shaft, rotating a nut (1) on a screw (5) to drive a main shaft tail pressing plate (3) to squeeze a main shaft tail (15), compressing the spring (13) in the main shaft, and installing an inner clamping spring (12) by using clamping spring pliers;
and fourthly, after the spring (13) is installed, the nut (1) is rotated to overcome the spring force by utilizing the tension of the screw (5) through the pressing plate, the clamping jaw ejector rod is ejected out until the clamping jaw (14) is opened to be capable of being assembled into the chest expander (19), then the nut (1) is loosened, the clamping jaw (14) tightens the chest expander (19) until the nut (1) is not acted by the spring force, and at the moment, the reading of the chest expander (19) is read, namely the broaching force of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517043.9A CN112621668B (en) | 2020-12-21 | 2020-12-21 | Tool and method for disassembling and assembling spindle broach spring of machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517043.9A CN112621668B (en) | 2020-12-21 | 2020-12-21 | Tool and method for disassembling and assembling spindle broach spring of machining center |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112621668A CN112621668A (en) | 2021-04-09 |
| CN112621668B true CN112621668B (en) | 2024-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011517043.9A Active CN112621668B (en) | 2020-12-21 | 2020-12-21 | Tool and method for disassembling and assembling spindle broach spring of machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112621668B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034960A (en) * | 1975-02-07 | 1977-07-12 | Kloster Kenneth D | Spring compressor tool |
| DE102007053937A1 (en) * | 2007-11-13 | 2009-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Assembly device for installing drive chain in body of motor vehicle i.e. car, has compression piece arranged at clamping tool with respect to spindle drive in radially movable manner by suspension arm |
| CN106853623A (en) * | 2015-12-08 | 2017-06-16 | 江西昌河航空工业有限公司 | A kind of instrument of fast assembling-disassembling main spindle broach disc spring |
| CN207087738U (en) * | 2017-05-25 | 2018-03-13 | 上汽通用五菱汽车股份有限公司 | The spring disassembling fixture of main spindle broach bar |
| CN208992629U (en) * | 2018-09-29 | 2019-06-18 | 江苏思维福特机械科技股份有限公司 | Disc spring pressing device |
| CN211728985U (en) * | 2019-09-11 | 2020-10-23 | 中国第一汽车股份有限公司 | Maintenance and disassembly tools for broach rod of machining center |
| CN212146274U (en) * | 2020-05-08 | 2020-12-15 | 广西玉柴机器股份有限公司 | Dismounting tool for disc spring of broach mechanism |
| CN213999346U (en) * | 2020-12-21 | 2021-08-20 | 广西玉柴机器股份有限公司 | Tool for disassembling and assembling broach spring of main shaft of machining center |
-
2020
- 2020-12-21 CN CN202011517043.9A patent/CN112621668B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034960A (en) * | 1975-02-07 | 1977-07-12 | Kloster Kenneth D | Spring compressor tool |
| DE102007053937A1 (en) * | 2007-11-13 | 2009-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Assembly device for installing drive chain in body of motor vehicle i.e. car, has compression piece arranged at clamping tool with respect to spindle drive in radially movable manner by suspension arm |
| CN106853623A (en) * | 2015-12-08 | 2017-06-16 | 江西昌河航空工业有限公司 | A kind of instrument of fast assembling-disassembling main spindle broach disc spring |
| CN207087738U (en) * | 2017-05-25 | 2018-03-13 | 上汽通用五菱汽车股份有限公司 | The spring disassembling fixture of main spindle broach bar |
| CN208992629U (en) * | 2018-09-29 | 2019-06-18 | 江苏思维福特机械科技股份有限公司 | Disc spring pressing device |
| CN211728985U (en) * | 2019-09-11 | 2020-10-23 | 中国第一汽车股份有限公司 | Maintenance and disassembly tools for broach rod of machining center |
| CN212146274U (en) * | 2020-05-08 | 2020-12-15 | 广西玉柴机器股份有限公司 | Dismounting tool for disc spring of broach mechanism |
| CN213999346U (en) * | 2020-12-21 | 2021-08-20 | 广西玉柴机器股份有限公司 | Tool for disassembling and assembling broach spring of main shaft of machining center |
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| Publication number | Publication date |
|---|---|
| CN112621668A (en) | 2021-04-09 |
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