CN109175942B - Piston connecting rod assembling device - Google Patents
Piston connecting rod assembling device Download PDFInfo
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- CN109175942B CN109175942B CN201811358651.2A CN201811358651A CN109175942B CN 109175942 B CN109175942 B CN 109175942B CN 201811358651 A CN201811358651 A CN 201811358651A CN 109175942 B CN109175942 B CN 109175942B
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- piston
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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
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Abstract
The invention belongs to the field of assembly of automobile engine parts, and discloses a piston connecting rod assembling device which comprises a piston pin centering device and a piston fixing clamping fixture; the piston fixing mould is provided with a piston pin; the piston pin righting device comprises a telescopic rack, a swinging arm and a transition gear, wherein a reset spring is arranged below the telescopic rack, a piston pin compression block matched with the shape of a piston pin is arranged at the top of the swinging arm, a swinging arm gear is arranged at the tail end of the swinging arm, the telescopic rack is connected with the swinging arm gear through the transition gear in a transmission manner, the telescopic rack vertically moves to drive the swinging arm gear to rotate, and after the swinging arm swings, the piston pin compression block is tightly pressed on the piston pin. The device can be used for quickly, effectively and accurately fixing the piston and the piston pin, is convenient for the pushing-out of the piston pin and the assembling process of the connecting rod, and has the advantages of quick and simple assembling rhythm and low labor intensity.
Description
Technical Field
The invention belongs to the field of assembly of automobile engine parts, and particularly relates to a piston connecting rod assembling device.
Background
Currently in the field of engine assembly, piston pin assembly is a labor intensive and relatively time consuming assembly station throughout the assembly line. In order to realize quick completion of the work, some manufacturers have completed the process in two steps, and the steel wire collar of the piston pin on one side is already pressed and assembled when the piston of a supplier is fed, so that the labor intensity and the beat on the assembly line are saved.
The existing common manual assembly technology is an assembly mode that only one assembly can be assembled at a time when the piston pin is assembled. Firstly, an operator firstly places the piston on the clamp for positioning, then places the connecting rod in the piston by one hand, and inserts the piston pin downwards by the other hand to shake the connecting rod simultaneously, and when the pin holes of the piston and the connecting rod are coaxial, the piston pin is completely inserted at one time to complete the assembly. In the prior art, only one piston connecting rod can be assembled at a time, and the clamp is required to be switched when the production of various mixed lines is performed. The defects are mainly long beat time, complex assembly and high labor intensity of operators.
Disclosure of Invention
According to the defects existing in the prior art, the invention aims to solve the problem that a piston pin is penetrated quickly when a piston and a connecting rod are assembled in the process of assembling an engine, realize the quick alignment of a piston pin hole and a connecting rod pin hole, and realize the quick switching of multiple varieties.
In order to achieve the purpose, the technical scheme adopted by the invention is that the piston connecting rod assembling device comprises a piston pin righting device and a piston fixing clamping fixture; the piston fixing mould is provided with a piston pin; the piston pin centering device comprises a telescopic rack, a swing arm and a transition gear, and a reset spring is arranged below the telescopic rack. The top of the swing arm is provided with a piston pin compressing block matched with the piston pin in shape, the tail end of the swing arm is provided with a swing arm gear, the telescopic rack is connected with the swing arm gear through a transition gear in a transmission manner, the telescopic rack vertically moves to drive the swing arm gear to rotate, and the piston pin compressing block is compressed on the piston pin after the swing arm swings.
Further, the telescopic rack is cylindrical, one side of the telescopic rack is provided with a rack matched with the transition gear, and the cylindrical part is used as telescopic guide.
Further, the piston connecting rod assembling device further comprises a mounting bottom plate and a sliding plate; the piston pin centering device is characterized in that a guide shaft and a sliding bearing are arranged on the mounting bottom plate, the piston pin centering device and the piston fixing clamping fixture are arranged on the sliding plate, the sliding plate is in sliding connection with the mounting bottom plate through the guide shaft and the sliding bearing, a pushing pin shaft is arranged on the mounting bottom plate along the direction of the guide shaft, and the pushing pin shaft is aligned with a piston pin of the piston.
Further, a pin pushing shaft support and a guide shaft support are arranged on the mounting bottom plate, one end of the guide shaft is connected to the guide shaft support, the other end of the guide shaft is connected to the lower portion of the pin pushing shaft support, a pin pushing shaft is mounted on the upper portion of the pin pushing shaft support, the pin pushing shaft is fixedly adjusted in length through a pin pushing shaft clamping sleeve, a sliding plate reset spring is sleeved on the guide shaft, one end of the sliding plate reset spring is fixed to the pin pushing shaft support through a spring spacer, and the other end of the sliding plate reset spring is fixed to the bottom of the sliding plate through a spring spacer.
Further, the bottom of the sliding plate is provided with a buffer stop rod, the mounting bottom plate is provided with a limit bolt which is matched with the buffer stop rod and limits the movement of the sliding plate, the limit bolt is fixed on the mounting bottom plate through a bolt seat, and the limit bolt is horizontally arranged on the mounting bottom plate and is adjustable in length along the movement direction of the sliding plate.
Further, a supporting wheel sizing block is arranged on the mounting bottom plate, an auxiliary supporting wheel is arranged at the bottom of the sliding plate through a supporting wheel seat, and the auxiliary supporting wheel is in rolling connection with the supporting wheel sizing block.
Further, a piston pin limiting block is arranged on the sliding plate along the ejection direction of the piston pin.
Further, a guide sleeve is arranged on one side, far away from the swing arm, of the telescopic rack.
Further, a spring limiting bracket is arranged at the position of the reset spring below the telescopic rack.
Further, the transition gear and the swing arm gear are fixed through the gear support and the gear shaft sleeve, and a dust cover is arranged outside the transition gear and the swing arm gear.
Further, the piston pin righting device and the piston fixing clamping fixture are two groups, the top ends of the two telescopic racks are connected through the handle rod, and the two swing arms are respectively arranged on one side, far away from the handle rod, of the telescopic racks.
The beneficial effects of the invention are as follows: the device can be used for quickly, effectively and accurately fixing the piston and the piston pin, is convenient for the pushing-out of the piston pin and the assembling process of the connecting rod, and has the advantages of quick and simple assembling rhythm and low labor intensity.
Drawings
FIG. 1 is a perspective view of the structure of the present invention
Figure 2 is a cross-sectional view of the structure of the present invention,
figure 3 is a schematic view of the piston prior to compression,
figure 4 is a schematic view of the piston after compression,
figure 5 is a schematic view of the connecting rod prior to assembly,
figure 6 is a schematic view of the assembled connecting rod,
in the figure: 1. the piston pin, 2, the piston, 3, the telescopic rack, 4, the swing arm, 5, the transition gear, 6, the reset spring, 7, the piston pin compact heap, 8, the swing arm gear, 9, the mounting plate, 10, the sliding plate, 11, the guiding axle, 12, the sliding bearing, 13, the pushing pin axle, 14, the pushing pin axle support, 15, the guiding axle support, 16, the pushing pin axle jacket, 17, the slide reset spring, 18, the spring spacer, 19, the buffering gear lever, 20, the limit bolt, 21, the bolt seat, 22, the supporting wheel sizing block, 23, the supporting wheel seat, 24, the auxiliary supporting wheel, 25, the piston pin limit block, 26, the guiding sleeve, 27, the spring limit support, 28, the gear support, 29, the gear shaft sleeve, 30, the dust cover, 31, the handle lever, 32, the piston fixing clamping fixture, 33 and the connecting rod.
Detailed Description
In order to make the technical scheme of the invention clearer, the technical scheme of the invention is further described below with reference to the attached drawings and the specific embodiments.
The piston connecting rod assembling device comprises a piston pin centering device and a piston fixing clamping fixture 32; the piston 2 with the piston pin 1 is assembled on the piston fixing mould 32; the piston pin righting device comprises a telescopic rack 3, a swinging arm 4 and a transition gear 5, wherein a reset spring 6 is arranged below the telescopic rack 3, the telescopic rack 3 is cylindrical, one side of the telescopic rack is provided with a rack, and a cylindrical part is used as telescopic guide. The top of the swing arm 4 is provided with a piston pin compressing block 7 matched with the piston pin 1 in shape, the tail end of the swing arm 4 is provided with a swing arm gear 8, the telescopic rack 3 is in transmission connection with the swing arm gear 8 through the transition gear 5, the telescopic rack 3 vertically moves to drive the swing arm gear 8 to rotate, and after the swing arm 4 swings, the piston pin compressing block 7 is compressed on the piston pin 1. The piston pin righting device and the piston fixing clamping fixture 32 are two groups, the top ends of the two telescopic racks 3 are connected through the handle rod 31, and the two swing arms 4 are respectively arranged on one side, far away from the handle rod 31, of the telescopic racks 3.
Further, the piston connecting rod assembling device further comprises a mounting bottom plate 9 and a sliding plate 10; the guide shaft 11 and the sliding bearing 12 are arranged on the mounting bottom plate 9, the piston pin centering device and the piston fixing clamping fixture 32 are arranged on the sliding plate 10, the sliding plate 10 is in sliding connection with the mounting bottom plate 9 through the guide shaft 11 and the sliding bearing 12, the pushing pin shaft 13 is arranged on the mounting bottom plate 9 along the direction of the guide shaft 11, and the pushing pin shaft 13 is aligned with the piston pin 1 of the piston.
Further, a pin pushing shaft support 14 and a guide shaft support 15 are arranged on the mounting bottom plate 9, one end of the guide shaft 11 is connected to the guide shaft support 15, the other end of the guide shaft 11 is connected to the lower portion of the pin pushing shaft support 14, a pin pushing shaft 13 is arranged on the upper portion of the pin pushing shaft support 14, the pin pushing shaft 13 is fixed in length through a pin pushing shaft jacket 16, a slide plate return spring 17 is sleeved on the guide shaft 11, one end of the slide plate return spring 17 is fixed to the pin pushing shaft support 14 through a spring spacer 18, and the other end of the slide plate return spring is fixed to the bottom of the slide plate 10 through the spring spacer 18.
Further, a buffer stop rod 19 is arranged at the bottom of the sliding plate 10, a limit bolt 20 which is matched with the buffer stop rod 19 and used for limiting the movement of the sliding plate 10 is arranged on the mounting bottom plate 9, the limit bolt 20 is fixed on the mounting bottom plate 9 through a bolt seat 21, and the limit bolt 20 is horizontally arranged on the mounting bottom plate 9 and is adjustable in length along the movement direction of the sliding plate 10.
Further, a supporting wheel sizing block 22 is arranged on the mounting bottom plate 9, an auxiliary supporting wheel 24 is arranged at the bottom of the sliding plate 10 through a supporting wheel seat 23, and the auxiliary supporting wheel 24 is in rolling connection with the supporting wheel sizing block 22.
Further, a piston pin stopper 25 is provided on the sliding plate 10 along the piston pin ejection direction.
Further, a guide sleeve 26 is arranged on one side of the telescopic rack 3 away from the swing arm.
Further, a spring limiting bracket 27 is arranged at the position of the return spring 6 below the telescopic rack 3.
Further, the transition gear 5 and the swing arm gear 8 are fixed through a gear support 28 and a gear shaft sleeve 29, and a dust cover 30 is arranged outside the transition gear 5 and the swing arm gear 8.
The device is operated by manual driving, and an operator can operate with smaller force. The handle bar 31 is manually pressed down, the swing arm 4 is converted into a compressed state from an expanded state through gear-rack transmission, and the swing arm 4 automatically returns to the expanded state through the return spring 6 after the handle bar 31 is released. The sliding plate 10 is manually pushed backwards, and is slid on the guide shaft 11 through the sliding bearing 12, and after the hands are loosened, the sliding plate 10 returns to the original position through the sliding plate return spring 17. After the sliding plate 10 is in place, the buffer stop lever 19 is blocked by the limit bolt 20 to limit, and the length of the limit bolt 20 is adjustable. The piston pin 1 is pushed out of the piston 2 by a push pin shaft 13, and the push pin shaft 13 is fixed on a push pin shaft bracket 14 and is subjected to length adjustment by a push pin shaft jacket 16. After the length of the pushing pin shaft 13 is adjusted, clamping and positioning are performed through the pushing pin shaft jacket 16, when the length of the pushing pin shaft 13 is changed, the pushing pin shaft jacket 16 is loosened, and after the length of the pushing pin shaft is adjusted again, the clamping and positioning are performed. The piston pin 1 performs the function of compressing and centering the piston by a piston pin compressing block 7. Two sets of auxiliary supporting wheels 24 are arranged below the sliding plate 10 and rotate on the supporting wheel sizing block 22 so as to prevent the sliding plate 10 from being unbalanced.
The device comprises the following specific operation steps:
with one side of the piston as the front, two pistons 2 with piston pins 1 and clamp springs on one side are manually placed on a piston fixing clamping fixture 32 according to the backward direction of the clamp springs, a rubber handle rod 31 is pressed by one hand, a telescopic rack 3 moves downwards, a swing arm gear 8 is driven to rotate through transmission of a transition gear 5, the swing arm 4 rotates with the swing arm gear 8 as two axial sides, and a piston pin compressing block 7 centers the pistons 2 and compresses the piston pins 1. The handle rod 31 is pushed backwards, the sliding plate 10 moves towards the direction of the pushing pin shaft 13, the pushing pin shaft 13 pushes two piston pins 1 to the position of the piston pin limiting block 25 at the same time, the sliding plate 10 automatically resets through the sliding plate return spring 17 after the hand is loosened, meanwhile, the swing arm 4 automatically opens through the return spring 6, one connecting rod 33 is manually taken by one hand to be placed in the piston 2, the piston 2 is manually held by the other hand and simultaneously pushed backwards by the thumb, the two hands cooperate in the operation process, the piston pin 1 is smoothly pushed into the piston connecting rods to complete the assembly, the assembly is manually taken out, the other group of piston connecting rods are completed through repeated actions after the connecting rods are taken out, the assembly work of the other two groups of piston connecting rods is completed through repeated actions, and the assembly work of one group of piston connecting rods of a four-cylinder engine is completed.
The device mainly aims at the occasion with quick beat requirement of the engine assembly line, the piston connecting rod assembly work is completed in two steps, the first step is completed manually by only putting the piston pin into the piston, and the second step is completed by the device, and the multi-variety quick replacement work can be completed. Has the advantages of high assembly speed, simple operation, labor intensity reduction and the like.
The foregoing list is only the preferred embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (7)
1. Piston connecting rod closes dress device, its characterized in that: comprises a piston pin centering device and a piston fixing clamping fixture; the piston fixing mould is provided with a piston pin; the piston pin centering device comprises a telescopic rack, a swinging arm and a transition gear, wherein a reset spring is arranged below the telescopic rack, the telescopic rack is cylindrical, teeth are arranged on one side of the telescopic rack, the cylindrical part is used for telescopic guiding, a piston pin compression block matched with the shape of a piston pin is arranged at the top of the swinging arm, the tail end of the swinging arm is provided with the swinging arm gear, the telescopic rack is in transmission connection with the swinging arm gear through the transition gear, the telescopic rack vertically moves to drive the swinging arm gear to rotate, and the piston pin compression block is compressed on the piston pin after the swinging arm swings; the device also comprises a mounting bottom plate and a sliding plate; the mounting bottom plate is provided with a guide shaft and a sliding bearing, the piston pin centering device and the piston fixing clamping fixture are arranged on the sliding plate, the sliding plate is in sliding connection with the mounting bottom plate through the guide shaft and the sliding bearing, the mounting bottom plate is provided with a push pin shaft along the direction of the guide shaft, and the push pin shaft is aligned with a piston pin of the piston; the installation bottom plate is provided with a pin pushing shaft support and a guide shaft support, one end of the guide shaft is connected to the guide shaft support, the other end of the guide shaft is connected to the lower part of the pin pushing shaft support, a pin pushing shaft is installed on the upper part of the pin pushing shaft support, the pin pushing shaft is fixed and adjusted in length through a pin pushing shaft clamping sleeve, a sliding plate reset spring is sleeved on the guide shaft, one end of the sliding plate reset spring is fixed on the pin pushing shaft support through a spring spacer, and the other end of the sliding plate reset spring is fixed at the bottom of the sliding plate through a spring spacer; the piston pin righting device and the piston fixing clamping fixture are two groups, the top ends of the two telescopic racks are connected through the handle rod, and the two swing arms are respectively arranged on one side, far away from the handle rod, of the telescopic racks.
2. The piston rod assembly device according to claim 1, wherein: the bottom of the sliding plate is provided with a buffer stop rod, the mounting bottom plate is provided with a limit bolt which is matched with the buffer stop rod and limits the movement of the sliding plate, the limit bolt is fixed on the mounting bottom plate through a limit bolt seat, and the limit bolt is horizontally arranged on the mounting bottom plate and is adjustable in length along the movement direction of the sliding plate.
3. The piston rod assembly device according to claim 1, wherein: the mounting bottom plate is provided with a supporting wheel sizing block, the bottom of the sliding plate is provided with an auxiliary supporting wheel through a supporting wheel seat, and the auxiliary supporting wheel is in rolling connection with the supporting wheel sizing block.
4. The piston rod assembly device according to claim 1, wherein: and a piston pin limiting block is arranged on the sliding plate along the ejection direction of the piston pin.
5. The piston rod assembly device according to claim 1, wherein: one side of the telescopic rack, which is far away from the swing arm, is provided with a guide sleeve.
6. The piston rod assembly device according to claim 1, wherein: and a spring limiting bracket is arranged at the position of the reset spring below the telescopic rack.
7. The piston rod assembly device according to claim 1, wherein: the transition gear and the swing arm gear are fixed through the gear support and the gear shaft sleeve, and a dust cover is arranged outside the transition gear and the swing arm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358651.2A CN109175942B (en) | 2018-11-15 | 2018-11-15 | Piston connecting rod assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358651.2A CN109175942B (en) | 2018-11-15 | 2018-11-15 | Piston connecting rod assembling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109175942A CN109175942A (en) | 2019-01-11 |
| CN109175942B true CN109175942B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358651.2A Active CN109175942B (en) | 2018-11-15 | 2018-11-15 | Piston connecting rod assembling device |
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| CN (1) | CN109175942B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125054A (en) * | 2019-05-31 | 2019-08-16 | 国网山东省电力公司临沂供电公司 | Distribution line insulator burnisher |
| CN110916983B (en) * | 2020-01-17 | 2021-09-21 | 河南省中医院（河南中医药大学第二附属医院） | Portable neuromuscular rehabilitation treatment device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3910337B2 (en) * | 2000-03-31 | 2007-04-25 | 本田技研工業株式会社 | Piston and connecting rod assembly jig |
| CN102198585B (en) * | 2010-03-25 | 2013-04-03 | 广西玉柴机器股份有限公司 | Assembly device and method for diesel engine piston pin |
| CN106624733B (en) * | 2016-11-23 | 2018-12-14 | 安徽江淮汽车集团股份有限公司 | A kind of press fitting of piston pin device |
| CN107695659A (en) * | 2017-10-31 | 2018-02-16 | 仪征全新活塞环有限公司 | Piston pin assembly machine |
| CN107775314A (en) * | 2017-10-31 | 2018-03-09 | 仪征全新活塞环有限公司 | Piston pin assembly machine fitting pin machine structure |
| CN207757189U (en) * | 2017-12-12 | 2018-08-24 | 沈阳航天三菱汽车发动机制造有限公司 | A kind of piston pin jack unit |
| CN207606489U (en) * | 2017-12-23 | 2018-07-13 | 浙江麦迪制冷科技股份有限公司 | Piston rod high efficiency assembling mechanism |
| CN209006986U (en) * | 2018-11-15 | 2019-06-21 | 大连德欣新技术工程有限公司 | A kind of piston rod assembling apparatus |
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2018
- 2018-11-15 CN CN201811358651.2A patent/CN109175942B/en active Active
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