CN112025261B - Motor support rod node press-fitting tool and press-fitting method for bogie - Google Patents
Motor support rod node press-fitting tool and press-fitting method for bogie Download PDFInfo
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- CN112025261B CN112025261B CN202010914889.XA CN202010914889A CN112025261B CN 112025261 B CN112025261 B CN 112025261B CN 202010914889 A CN202010914889 A CN 202010914889A CN 112025261 B CN112025261 B CN 112025261B
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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
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- 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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Abstract
The invention provides a motor support rod node press-fitting tool and a press-fitting method for a bogie, and the press-fitting tool comprises a bottom plate, a plurality of supports, a positioning pin and a pressure head unit, wherein the supports, the positioning pin and the pressure head unit are fixed on the bottom plate; the number of the plurality of supports is the same as that of the node holes; each support is provided with a positioning hole; during press mounting, the motor supporting rod is arranged on the plurality of supports; each node hole is correspondingly arranged right above one positioning hole one by one; the positioning pin comprises an upper positioning part and a lower positioning part fixed at the lower end of the upper positioning part; the lower positioning part of the positioning pin is inserted in the positioning hole in a clearance fit manner, and the upper positioning part is inserted in the node hole of the positioning hole in a clearance fit manner; the pressing head unit comprises a pressing head and a guide rail; the pressure head is used for pressing the node into the node hole; the guide rail is used for guiding and limiting the pressure head to move along a straight line direction parallel to the axis of the node hole. The invention realizes the accurate positioning of the motor supporting rod and the node, prevents the node from rotating and improves the qualification rate and the working efficiency of press mounting.
Description
Technical Field
The invention belongs to the field of tools, and particularly relates to a tool and a method for press mounting a motor support rod node of a bogie.
Background
The motor of the magnetic direct-drive type bogie is suspended on the bogie by virtue of the motor supporting rod, three nodes in the motor supporting rod are connected and fixed with the supporting rod by virtue of interference fit, the precision requirement is met on the angle deflected in the axial direction after the nodes are installed, and the deflection is generally required to be not more than 1 degree.
The existing installation mode is that the side of a node corresponding to a support rod is marked, then the positions of the marked lines on the two sides are aligned, and press mounting is carried out by using a press mounting machine, so that certain error exists in manual marking, if the manual marking is carried out directly, the size after pressing can not be guaranteed to meet the standard, and the node can rotate due to uneven stress during press mounting.
Through tests, the directly pressed product has high rejection rate after detection, the node deflection exceeds 2 degrees, large-batch reworking is caused, and the node can be scratched or even scrapped when being taken out in the reworking process. Therefore, the working efficiency is low, the rework rate is high, manpower and material resources are wasted, and the production cost is increased.
Disclosure of Invention
In order to solve the problems, the invention provides a motor support rod node press-fitting tool and a press-fitting method for a bogie, which can realize the accurate positioning of a motor support rod and a node, prevent the node from rotating in the press-fitting process and improve the pass percent and the working efficiency of press-fitting.
The technical scheme is as follows: the invention provides a motor support rod node press-fitting tool of a bogie, wherein a plurality of node holes are formed in a motor support rod, the node holes are all round through holes, and the axial leads of the node holes are parallel; the number of the nodes is the same as the number of the node holes; each node comprises a round shaft and a double-sided flat shaft fixed on one end face of the round shaft; the circular shaft of each node is inserted in a node hole in an interference fit manner; the double-sided flat shaft is positioned outside the upper end of the node hole; the press-fitting tool comprises
A base plate;
a plurality of supports fixed to the base plate; the number of the plurality of supports is the same as that of the node holes; each support is provided with a positioning hole; the diameter of the positioning hole is not larger than that of the node hole; during press mounting, the motor supporting rod is arranged on the plurality of supports; each node hole is correspondingly arranged right above one positioning hole one by one;
positioning pins; the positioning pin comprises an upper positioning part and a lower positioning part fixed at the lower end of the upper positioning part; after each node hole is correspondingly arranged right above one positioning hole one by one, a positioning pin is respectively inserted in at least two node holes without nodes; the lower positioning part of the positioning pin is inserted into the positioning hole in a clearance fit manner, and the upper positioning part is inserted into the node hole of the positioning hole in a clearance fit manner; when a node hole is subjected to node press mounting, the positioning pin in the node hole is extracted;
a ram unit; the pressure head unit comprises a pressure head and a guide rail; the pressure head is used for pressing the node into the node hole; the guide rail is used for guiding and limiting the pressure head to move along a straight line direction parallel to the axis of the node hole.
Furthermore, a double-sided flat hole is formed in the end face of the bottom of the pressure head; during press fitting, the double-sided flat hole of the pressure head is sleeved outside the double-sided flat shaft of the node, the node is limited to rotate relative to the pressure head, and the node hole are coaxial.
Further, the guide rail comprises a dovetail-shaped rail fixed on the bottom plate and a dovetail groove fixed on the pressure head; the dovetail-shaped rail is parallel to the axis of the node hole; the dovetail grooves are correspondingly connected to the dovetail-shaped rails.
Further, the locating pin still includes the handle of fixing in last location portion upper end.
Furthermore, the number of the node holes on the motor supporting rod is three.
A motor support rod node press-fitting method of a bogie is characterized in that a plurality of node holes are formed in a motor support rod, the node holes are all round through holes, and the axial leads of the node holes are parallel; the number of the nodes is the same as the number of the node holes; each node comprises a round shaft and a double-sided flat shaft fixed on one end face of the round shaft; the circular shaft of each node is inserted in a node hole in an interference fit manner; the double-sided flat shaft is positioned outside the upper end of the node hole; a motor support rod node press-fitting tool of the bogie is used; the method comprises the following steps:
s1, placing the bottom plate on a horizontal table top;
s2, arranging the motor supporting rods on a plurality of supports; inserting a positioning pin into the node holes without the nodes; the lower positioning part of the positioning pin is inserted into the positioning hole in a clearance fit manner, and the upper positioning part is inserted into the node hole of the positioning hole in a clearance fit manner; enabling each node hole to be correspondingly arranged right above one positioning hole one by one;
s3, placing the first node on a node hole without a positioning pin, and connecting a pressure head on a corresponding guide rail; sleeving the double-sided flat hole of the pressure head outside the double-sided flat shaft of the node;
s4, pressing the pressure head until the circular shaft of the node is inserted into the node hole in an interference fit manner;
s5, selecting a positioning pin of any one node hole from the node holes provided with the positioning pins, and repeating the steps S3 and S4 to complete the press mounting of the next node;
and S6, repeating the step S5 until the press mounting of all the nodes is completed, and lifting all the press heads.
Has the advantages that:
in the invention, the lower positioning part of the positioning pin is inserted in the positioning hole in a clearance fit manner, and the upper positioning part is inserted in the node hole of the positioning hole in a clearance fit manner; through the positioning pins, each node hole is arranged right above one positioning hole in a one-to-one correspondence mode, and accurate positioning of the motor supporting rod is achieved.
Through the matching of the double-sided flat hole and the double-sided flat shaft, the node and the node hole have the same axial lead, and the node positioning is realized; but also can limit the node from rotating relative to the pressure head; in addition, the dovetail-shaped rail is matched with the dovetail groove to limit the rotation of the pressure head.
Drawings
FIG. 1 is a schematic structural view of the present invention in a press-fitting operation state;
FIG. 2 is a schematic structural diagram of a motor support rod according to the present invention;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic structural view of the indenter of the present invention;
fig. 5 is a schematic structural view of the positioning pin of the present invention.
Detailed Description
Referring to fig. 1, the invention provides a press-fitting tool for a motor support rod node of a bogie. As shown in fig. 2, three node holes 101 are formed in the motor support rod 1, the three node holes 101 are all circular through holes, and the axial leads of the three node holes 101 are parallel; the number of the nodes 102 is the same as that of the node holes 101; each node 102 includes a circular shaft 102a and a double-sided flat shaft 102b fixed to one end surface of the circular shaft 102 a; the circular shaft 102a of each node 102 is inserted into one node hole 101 in an interference fit manner; the double-sided flat shaft 102b is located outside the upper end of the node hole 101.
As shown in fig. 3, the press-fitting tool includes a base plate 2, a plurality of holders 3 fixed to the base plate 2, positioning pins 4, and a press head unit.
The number of the plurality of seats 3 is the same as the number of the node holes 101; each support 3 is provided with a positioning hole 301; the diameter of the positioning hole 301 is not larger than that of the node hole 101; during press mounting, the motor supporting rod 1 is arranged on the plurality of supports 3; and each node hole 101 is correspondingly arranged right above one positioning hole 301.
As shown in fig. 5, the positioning pin 4 includes an upper positioning part 401, a lower positioning part 402 fixed to a lower end of the upper positioning part 401, and a pull 403 fixed to an upper end of the upper positioning part 401. After each node hole 101 is correspondingly arranged right above one positioning hole 301, one positioning pin 4 is respectively inserted into at least two node holes 101 without nodes 102; the lower positioning part 402 of the positioning pin 4 is inserted into the positioning hole 301 in a clearance fit manner, and the upper positioning part 401 is inserted into the node hole 101 of the positioning hole 301 in a clearance fit manner; when a node hole 101 is subjected to press fitting of a node 102, the positioning pin 4 in the node hole 101 is extracted.
The pressing head unit comprises a pressing head 501 and a guide rail 502; the pressing head 501 is used for pressing the node 102 into the node hole 101; the guide rails 502 are used for guiding and limiting the movement of the pressing head 501 along a straight line direction parallel to the axis of the node hole 101.
As shown in fig. 4, a double-sided flat hole 501a is formed in the bottom end face of the pressing head 501; during press fitting, the double-sided flat hole 501a of the pressure head 501 is sleeved outside the double-sided flat shaft 102b of the node 102, so that the node 102 is limited from rotating relative to the pressure head 501, and the node 102 and the node hole 101 are coaxial.
The guide rail 502 comprises a dovetail-shaped rail 502a fixed on the bottom plate 2 and a dovetail groove 502b fixed on the pressure head 501; the dovetail rail 502a is parallel to the axis of the node hole 101; the dovetail grooves 502b are correspondingly connected to the dovetail rails 502 a.
A motor support rod node press-fitting method of a bogie uses the motor support rod node press-fitting tool of the bogie; the method comprises the following steps:
and S1, placing the bottom plate 2 on a horizontal table top.
S2, the motor supporting rod 1 is arranged on the plurality of supports 3; a positioning pin 4 is respectively inserted into the node holes 101 without the nodes 102; the lower positioning part 402 of the positioning pin 4 is inserted into the positioning hole 301 in a clearance fit manner, and the upper positioning part 401 is inserted into the node hole 101 of the positioning hole 301 in a clearance fit manner; through locating pin 4, make every node hole 101 one-to-one place directly over a locating hole 301, realize the accurate positioning of motor support pole 1.
S3, placing the first node 102 on the node hole 101 without the positioning pin 4, and connecting the pressure head 501 to the corresponding guide rail 502; sleeving a double-sided flat hole 501a of the pressure head 501 outside a double-sided flat shaft 102b of the node 102; through the matching of the double-sided flat hole 501a and the double-sided flat shaft 102b, the node 102 and the node hole 101 have the same axis, and the node positioning is realized; but also restrict the node 102 from rotating relative to the ram 501; further, the rotation of the ram 501 is restricted by the engagement of the dovetail rail 502a and the dovetail groove 502 b.
S4, pressing the pressure head 501 until the circular shaft 102a of the node 102 is inserted into the node hole 101 in an interference fit manner; the pressure can be applied by using a press machine to align with the pressure head, the pressure machine is enabled to pre-press the nodes in a inching mode, and the pressure is directly applied in one step after the nodes are observed to enter the supporting rod holes and no deflection phenomenon exists; the press machine has a limit measure, and after the press machine is pressed in place, the press machine cannot continue to further compress.
S5, selecting the positioning pin 4 of any one node hole 101 from the node holes 101 provided with the positioning pins 4, and taking out the positioning pin 4, wherein the installed node 102 and the pressure head 501 are still in a connection state and can be used as the limit of the motor supporting rod 1; and repeating the steps S3 and S4 to complete the press fitting of the next node 102.
And S6, repeating the step S5 until the press mounting of all the nodes 102 is completed, and lifting all the press heads 501.
Claims (4)
1. A motor support rod node press-fitting tool of a bogie is characterized in that a plurality of node holes (101) are formed in a motor support rod (1), the node holes (101) are all round through holes, and the axial leads of the node holes (101) are parallel; the number of the nodes (102) is the same as that of the node holes (101); each node (102) comprises a round shaft (102 a) and a double-sided flat shaft (102 b) fixed on one end face of the round shaft (102 a); the round shaft (102 a) of each node (102) is inserted in a node hole (101) in an interference fit manner; the double-sided flat shaft (102 b) is positioned outside the upper end of the node hole (101); the method is characterized in that: the press-fitting tool comprises
A base plate (2);
a plurality of supports (3) fixed on the bottom plate (2); the number of the plurality of supports (3) is the same as the number of the node holes (101); each support (3) is provided with a positioning hole (301); the diameter of the positioning hole (301) is not larger than that of the node hole (101); during press mounting, the motor supporting rod (1) is arranged on the plurality of supports (3); each node hole (101) is correspondingly arranged right above one positioning hole (301);
a positioning pin (4); the positioning pin (4) comprises an upper positioning part (401) and a lower positioning part (402) fixed at the lower end of the upper positioning part (401); after each node hole (101) is correspondingly arranged right above one positioning hole (301), a positioning pin (4) is respectively inserted into at least two node holes (101) without nodes (102); the lower positioning part (402) of the positioning pin (4) is inserted into the positioning hole (301) in a clearance fit manner, and the upper positioning part (401) is inserted into the node hole (101) of the positioning hole (301) in a clearance fit manner; when a node hole (101) is subjected to node (102) press fitting, the positioning pin (4) in the node hole (101) is extracted;
a ram unit; the pressing head unit comprises a pressing head (501) and a guide rail (502); the pressure head (501) is used for pressing the node (102) into the node hole (101); the guide rail (502) is used for guiding and limiting the pressure head (501) to move along a linear direction parallel to the axial lead of the node hole (101);
the bottom end face of the pressure head (501) is provided with a double-sided flat hole (501 a); during press fitting, the double-sided flat hole (501 a) of the pressure head (501) is sleeved outside the double-sided flat shaft (102 b) of the node (102), the node (102) is limited to rotate relative to the pressure head (501), and the node (102) and the node hole (101) are coaxial;
the guide rail (502) comprises a dovetail-shaped track (502 a) fixed on the bottom plate (2) and a dovetail groove (502 b) fixed on the pressure head (501); the dovetail rail (502 a) is parallel to the axis of the node hole (101); the dovetail groove (502 b) is correspondingly connected to the dovetail-shaped track (502 a).
2. The motor support rod node press-fitting tool of the bogie according to claim 1, wherein: the positioning pin (4) further comprises a handle (403) fixed at the upper end of the upper positioning part (401).
3. The motor support rod node press-fitting tool of the bogie according to claim 2, wherein: the number of the node holes (101) on the motor supporting rod (1) is three.
4. A motor support rod node press-fitting method of a bogie is characterized in that a plurality of node holes (101) are formed in a motor support rod (1), the node holes (101) are all round through holes, and the axial leads of the node holes (101) are parallel; the number of the nodes (102) is the same as that of the node holes (101); each node (102) comprises a round shaft (102 a) and a double-sided flat shaft (102 b) fixed on one end face of the round shaft (102 a); the round shaft (102 a) of each node (102) is inserted in a node hole (101) in an interference fit manner; the double-sided flat shaft (102 b) is positioned outside the upper end of the node hole (101); the method is characterized in that: using the motor strut joint press fitting tool of the bogie as claimed in claim 3; the method comprises the following steps:
s1, placing the bottom plate (2) on a horizontal table top;
s2, arranging the motor supporting rods (1) on the plurality of supports (3); a positioning pin (4) is respectively inserted into the node holes (101) which are not provided with the nodes (102); the lower positioning part (402) of the positioning pin (4) is inserted into the positioning hole (301) in a clearance fit manner, and the upper positioning part (401) is inserted into the node hole (101) of the positioning hole (301) in a clearance fit manner; enabling each node hole (101) to be correspondingly arranged right above one positioning hole (301) one by one;
s3, placing the first node (102) on the node hole (101) without the positioning pin (4) and connecting the pressure head (501) to the corresponding guide rail (502); sleeving a double-sided flat hole (501 a) of the pressure head (501) outside a double-sided flat shaft (102 b) of the node (102);
s4, pressing the pressure head (501) until the circular shaft (102 a) of the node (102) is inserted into the node hole (101) in an interference fit manner;
s5, selecting the positioning pin (4) of any one node hole (101) from the node holes (101) provided with the positioning pins (4) to take out, and repeating the steps S3 and S4 to complete the press mounting of the next node (102);
and S6, repeating the step S5 until the press mounting of all the nodes (102) is completed, and lifting all the press heads (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914889.XA CN112025261B (en) | 2020-09-03 | 2020-09-03 | Motor support rod node press-fitting tool and press-fitting method for bogie |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914889.XA CN112025261B (en) | 2020-09-03 | 2020-09-03 | Motor support rod node press-fitting tool and press-fitting method for bogie |
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| Publication Number | Publication Date |
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| CN112025261A CN112025261A (en) | 2020-12-04 |
| CN112025261B true CN112025261B (en) | 2022-09-02 |
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| CN202010914889.XA Active CN112025261B (en) | 2020-09-03 | 2020-09-03 | Motor support rod node press-fitting tool and press-fitting method for bogie |
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| CN115302242A (en) * | 2022-07-20 | 2022-11-08 | 中车洛阳机车有限公司 | Railway locomotive traction cylinder press-fitting device and press-fitting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6543113B1 (en) * | 2000-04-18 | 2003-04-08 | Cummins Engine Company, Inc. | Tooling components for crankshaft seal removal and installation |
| CN107520594A (en) * | 2016-06-20 | 2017-12-29 | 中兴通讯股份有限公司 | Adjuster and pressing platform |
| CN107813250A (en) * | 2017-10-23 | 2018-03-20 | 中车南京浦镇车辆有限公司 | Bogie drawing pull bar node is pressed unloads integral type frock with moving back |
| CN210024413U (en) * | 2019-05-13 | 2020-02-07 | 中车长春轨道客车股份有限公司 | Traction pull rod rubber node press-mounting device |
| CN110253254B (en) * | 2019-07-05 | 2024-03-15 | 浙江联宜电机有限公司 | Part press-fitting device on planet carrier |
| CN210589045U (en) * | 2019-07-05 | 2020-05-22 | 中车长春轨道客车股份有限公司 | Rubber node press-fitting clamp for traction pull rod |
| CN210389067U (en) * | 2019-08-14 | 2020-04-24 | 广州铁路机车配件厂有限公司 | Locomotive motor jib pressure equipment frock |
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