CN107297611B - Connecting rod bushing press-fitting system and press-fitting method - Google Patents
Connecting rod bushing press-fitting system and press-fitting method Download PDFInfo
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- CN107297611B CN107297611B CN201710611491.7A CN201710611491A CN107297611B CN 107297611 B CN107297611 B CN 107297611B CN 201710611491 A CN201710611491 A CN 201710611491A CN 107297611 B CN107297611 B CN 107297611B
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- bushing
- connecting rod
- press
- block
- splicing
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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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- 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
- B23P19/001—Article feeders for assembling machines
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a connecting rod bushing press-fitting system which comprises an automatic bushing receiving device, an automatic connecting rod feeding and discharging device, a connecting rod press-fitting positioning bottom plate and a bushing press-fitting device, wherein the automatic bushing receiving device is arranged on the connecting rod; the automatic bushing receiving device is used for sending the bushing to the bushing press-fitting device; the automatic connecting rod feeding and discharging device is used for feeding the connecting rod to the connecting rod press-fitting positioning bottom plate; the connecting rod press-fitting positioning bottom plate is positioned below the bushing press-fitting device and used for positioning the connecting rod before press-fitting; the bushing press-fitting device is used for grabbing the bushing and pressing the bushing into a small-end hole of the connecting rod; the automatic loading and unloading device for the connecting rod is used for taking away the pressed connecting rod. The invention also discloses a press fitting method of the press fitting system of the connecting rod bushing. According to the invention, the automatic conveying of the bushing and the connecting rod and the press fitting of the bushing onto the connecting rod are realized through the connecting rod bushing press fitting system, so that the labor intensity is reduced and the working efficiency is improved.
Description
Technical field
The present invention relates to the technical field of process equipment more particularly to a kind of connecting rob bushing press mounting systems and pressing method.
Background technique
The press fitting of existing engines connecting rod bushing generallys use the mode of artificial loading and unloading, and bushing and connecting rod are all by artificial
The angle position of conveying, positioning manually, bushing is confirmed by manually visualizing, and be easy to cause bushing angle position to deviate, to product
Quality has an impact；There are the large labor intensities of artificial loading, ineffective problem for existing equipment simultaneously.
Therefore, in order to overcome the problems, such as the large labor intensity, ineffective of artificial loading, it is necessary to design a kind of reduction
Labor intensity, the connecting rob bushing press mounting system and pressing method for improving working efficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of reduction labor intensity, improve working efficiency
Connecting rob bushing press mounting system and pressing method.
The present invention provides a kind of connecting rob bushing press mounting system, including bushing automatic material connection device, connecting rod automatic loading/unloading dress
It sets, connecting rod is pressed positioning plate and bushing press-mounting device；
The bushing automatic material connection device is for bushing to be sent at the bushing press-mounting device；
The connecting rod automatic loading and unloading device is used to for connecting rod being sent at the connecting rod press fitting positioning plate；
The connecting rod press fitting positioning plate is located at the lower section of the bushing press-mounting device, for positioning the company before being pressed
Bar；
The bushing is pressed into the small stomidium of the connecting rod for grabbing the bushing by the bushing press-mounting device
In；
The connecting rod automatic loading and unloading device is used to take away on the connecting rod after press fitting.
Further, bushing automatic material connection device, including discharging raceway, splicing unit and lift unit；
The discharging raceway includes inlet port and outlet port；
The splicing unit includes block and locating piece, and the locating piece is equipped with splicing entrance；
When the discharge port is aligned with the splicing entrance, the lift unit promotes the block, and the block allows
The splicing entrance out, the bushing are entered in the locating piece from the discharge port by the splicing entrance；
The splicing unit is removed, and the lift unit is separated with the block, and the block declines and blocks described connect
Expect entrance.
Further, the splicing unit further includes installation axle, return spring and bottom plate, and the bottom end of the installation axle is fixed
On the bottom plate, the block be equipped with through-hole, the installation axle pass through the through-hole, the top of the installation axle with it is described
Return spring is equipped between block, the block can be along the installation axle oscilaltion.
Further, the splicing unit further includes rotary cylinder, and the rotary cylinder drives the locating piece and described
Block rotation.
Further, the lift unit includes wedge block,
When the discharge port is aligned with the splicing entrance, the wedge block contacts with the block and promotes the gear
Block；
The splicing unit is removed, and the wedge block is separated with the block, the block decline.
Further, the bushing press-mounting device includes servo electric cylinders, main shaft and pressure head；
The servo electric cylinders are able to drive the main shaft and stretch up and down, and the pressure head is mounted on the bottom end of the main shaft；
The pressure head, including pedestal, and the crawl section axially extended in the middle part of the pedestal, the crawl section are
Cylindricality radially offers at least three mounting holes on the crawl section, the plunger that can be stretched is equipped in the mounting hole；
In the inner hole that the crawl section is inserted into bushing, the plunger holds out against the inner wall of the bushing, the pressure head
Grab the bushing.
Further, the end face of the crawl section offers at least three top holes, each top hole vertically
It is corresponding to be connected to a mounting hole, Top fastening screw is installed, the Top fastening screw is for holding out against the column in the top hole
The side of plug.
Further, at least three unthreaded holes, each corresponding connection of the unthreaded hole are radially also provided on the crawl section
One mounting hole.
Further, the bushing press-mounting device further includes angular transducer and servo motor, and the angular transducer is used
In the notch for detecting the bushing, the servo motor drives the main shaft rotation, when the angular transducer detect it is described
When notch, main shaft described in the Serve Motor Control stops operating.
The present invention also provides a kind of pressing methods for connecting rob bushing press mounting system, comprising the following steps:
Bushing is sent at the bushing press-mounting device by the bushing automatic material connection device；
Connecting rod is sent at the connecting rod press fitting positioning plate by the connecting rod automatic loading and unloading device；
The bushing press-mounting device grabs the bushing, and the bushing is pressed into the small stomidium of the connecting rod；
The connecting rod automatic loading and unloading device takes the connecting rod after press fitting away.
Further, the bushing press-mounting device includes servo electric cylinders, main shaft and pressure head；
The servo electric cylinders are able to drive the main shaft and stretch up and down, and the pressure head is mounted on the bottom end of the main shaft；
The pressure head, including pedestal, and the crawl section axially extended in the middle part of the pedestal, the crawl section are
Cylindricality radially offers at least three mounting holes on the crawl section, the plunger that can be stretched is equipped in the mounting hole；
In the inner hole that the crawl section is inserted into bushing, the plunger holds out against the inner wall of the bushing, the pressure head
Grab the bushing；
The bushing press-mounting device grabs the bushing, and the bushing is pressed into the step in the small stomidium of the connecting rod
Suddenly further comprise:
The servo electric cylinders drive the main shaft decline；
The pressure head is inserted into the inner hole of the bushing；
The plunger holds out against the inner wall of the bushing, and the pressure head grabs the bushing；
The servo electric cylinders drive the main shaft to rise；
The servo electric cylinders drive the main shaft to decline again；
The bushing is pressed into the small stomidium of the connecting rod by the pressure head；
The pressure head discharges the bushing；
The servo electric cylinders drive the main shaft to rise again.
Further, the bushing press-mounting device further includes angular transducer and servo motor；
Before the step of servo electric cylinders drive the main shaft to decline again, further includes:
The servo motor drives the main shaft rotation, while the angular transducer detects the described of the bushing and lacks
Mouthful；
When the angular transducer detects the notch, main shaft described in the Serve Motor Control stops operating.
Further, the bushing automatic material connection device includes discharging raceway, splicing unit and lift unit；
The discharging raceway includes inlet port and outlet port；
The splicing unit includes block and locating piece, and the locating piece is equipped with splicing entrance；
The step of bushing is sent at the bushing press-mounting device by the bushing automatic material connection device further comprises:
The discharge port is aligned with the splicing entrance；
The lift unit promotes the block, and the block concedes the splicing entrance, and the bushing is from the discharging
Mouth is entered in the locating piece by the splicing entrance；
The splicing unit, which is removed, is sent to the bushing at the bushing press-mounting device, the lift unit with it is described
Block separation, the block decline and block the splicing entrance.
After adopting the above technical scheme, having the following beneficial effects:
The present invention by connecting rob bushing press mounting system realize it is automatic transport bushing, connecting rod and by bushing press-mounting to connecting rod,
It reduces labor intensity, improve work efficiency.
Detailed description of the invention
Referring to attached drawing, the disclosure of the present invention will become more readily understood.It is understood that these attached drawings are merely illustrative
Purpose, and be not intended to limit the scope of protection of the present invention.In figure:
Fig. 1 is the local general assembly drawing of connecting rob bushing press mounting system in one embodiment of the invention；
Fig. 2 is the main view of bushing automatic material connection device in one embodiment of the invention；
Fig. 3 is the top view of bushing automatic material connection device in one embodiment of the invention；
Fig. 4 is the top view of the block of bushing automatic material connection device in one embodiment of the invention；
Fig. 5 is the left side view of bushing automatic material connection device in one embodiment of the invention；
Fig. 6 is the main view of pressure head in one embodiment of the invention；
Fig. 7 is the side view of pressure head in one embodiment of the invention；
Fig. 8 is the cross-sectional view in Fig. 6 at A-A；
Fig. 9 is the sectional view in Fig. 6 at B-B；
Figure 10 is the sectional view in Fig. 6 at C-C；
Figure 11 is the structural schematic diagram that plunger is equipped in Figure 10；
Figure 12 is the main view of bushing press-mounting device in another embodiment of the present invention；
Figure 13 is the partial enlarged view of the angular transducer of bushing press-mounting device and pressure head in another embodiment of the present invention；
Figure 14 is the partial enlarged view of the pressure head of bushing press-mounting device and main shaft in another embodiment of the present invention.
The appended drawing reference table of comparisons:
1 '-discharging raceway 2 '-splicing 3 '-lift unit of unit
11 '-feed inlet 12 '-discharge port, 13 '-positioning pins
21 '-block 22 '-locating piece, 23 '-installation axles
24 '-return spring 25 '-bottom plate, 26 '-rotary cylinders
27 '-bolt 31 '-wedge block, 211 '-through-holes
212 '-operand 213 '-occlusion part, 214 '-mounting holes
221 '-splicing 222 '-positioning grooves of entrance
The crawl section 1- pedestal 2- 3- through-hole
11- limits heavy platform 12- stage portion 13- connecting hole
21- mounting hole 22- plunger 21a- first layer mounting hole
21b- second layer mounting hole 23- top hole 24- unthreaded hole
25- rotary table 10- pressure head 20- servo electric cylinders
30- main shaft 40- angular transducer 50- servo motor
51- retarder 52- driving gear 53- driven gear
60- bolt 301- boss 100- bushing
200- bushing automatic material connection device 300- connecting rod automatic loading and unloading device
400- bushing press-mounting device 500- connecting rod
600- vibrating disk
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.
It is readily appreciated that, according to the technique and scheme of the present invention, in the case where not changing true spirit, the general skill of this field
The various structures mode and implementation that art personnel can be replaced mutually.Therefore, following specific embodiments and attached drawing are only
To the exemplary illustration of technical solution of the present invention, and it is not to be construed as whole of the invention or is considered as to inventive technique scheme
It defines or limits.
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
As shown in Figure 1, connecting rob bushing press mounting system, including bushing automatic material connection device 200, connecting rod automatic loading and unloading device
300, connecting rod press fitting positioning plate and bushing press-mounting device 400；
Bushing automatic material connection device 200 is for bushing 100 (referring to Fig. 3) to be sent at bushing press-mounting device 400；
Connecting rod automatic loading and unloading device 300 is used to for connecting rod 500 being sent at connecting rod press fitting positioning plate；
Connecting rod press fitting positioning plate is located at the lower section of bushing press-mounting device 400, for positioning the connecting rod 500 before being pressed；
Bushing 100 is pressed into the small stomidium of connecting rod 500 by bushing press-mounting device 400 for grabbing bushing 100；
Connecting rod automatic loading and unloading device 300 is used to take away on the connecting rod 500 after press fitting.
Further, connecting rob bushing press mounting system further includes vibrating disk 600, vibrating disk 600 and bushing automatic material connection device
Bushing 100 is sent in bushing automatic material connection device 200 by 200 connections, vibrating disk 600 one by one.
Further, connecting rod automatic loading and unloading device 300 includes at least raceway and picking unit, and raceway transports connecting rod 500
After being sent to position, picking unit grabs connecting rod 500, connecting rod 500 is put at connecting rod press fitting positioning plate, bushing 100 is pressed into connecting rod
After 500, picking unit again takes the connecting rod 500 after press fitting away.Then aforesaid operations are repeated.
Further, connecting rod press fitting positioning plate realizes determining for connecting rod by big end rhombus pin and the movable positioning pin of small end
Position, and the positive and negative detection that big end oilhole detection switch realizes connecting rod is installed, guarantee to carry out to formulate end face as positioning surface always
Bushing press-mounting, to guarantee that bushing press-mounting height is errorless.When pressure head drives the broached bushing of fixed angle to push, guarantee connecting rod
The movable positioning pin of small end of small stomidium positioning declines under the action of the spring, and bushing is fitted in pinpoint small stomidium.
Automatic bushing, connecting rod and by bushing press-mounting to company are transported since the present invention is realized by connecting rob bushing press mounting system
On bar, reduces labor intensity, improves work efficiency.
Bushing automatic material connection device
As Figure 2-3, bushing automatic material connection device, including discharging raceway 1 ', splicing unit 2 ' and lift unit 3 '；
The raceway 1 ' that discharges includes feed inlet 11 ' and discharge port 12 '；
Splicing unit 2 ' includes block 21 ' and locating piece 22 ', and locating piece 22 ' is equipped with splicing entrance 221 '；
When discharge port 12 ' is aligned with splicing entrance 221 ', lift unit 3 ' promotes block 21 ', and block 21 ' concedes splicing
Entrance 221 ', bushing 100 are entered in locating piece 22 ' from discharge port 12 ' by splicing entrance 221 '；
Splicing unit 2 ' is removed, and lift unit 3 ' is separated with block 21 ', and block 21 ' declines and blocks splicing entrance 221 '.
Specifically, multiple bushings 100 are entered on discharging raceway 1 ' by feed inlet 11 ', on discharging raceway 1 ' successively
Arrangement, then one by one by discharge port 12 ', waiting is entered in splicing unit 2 '.
Block 21 ' in splicing unit 2 ' is used to cooperate with lift unit 3 ', when splicing unit 2 ' moves to discharge port 12 '
When being aligned with splicing entrance 221 ', lift unit 3 ' promotes block 21 '；After splicing unit 2 ' is removed, lift unit 3 ' also with
Block 21 ' separates, and block 21 ' declines.
Block 21 ' also acts as the effect for opening or closing splicing entrance 221 ', when block 21 ' rises, splicing entrance 221 '
It opens, when block 21 ' declines, splicing entrance 221 ' is closed.
Locating piece 22 ' in splicing unit 2 ' plays the role of being positioned into bushing 100 therein.
In the present embodiment, the course of work of bushing automatic material connection device approximately as:
Bushing 100 is transported to close to splicing unit 2 ' by discharging raceway 1 ' to be located；
After the movement in place of splicing unit 2 ', lift unit 3 ' promotes block 21 ', and block 21 ' opens splicing entrance 221 ', lining
Set 100 enters in locating piece 22 ', so that splicing unit 2 ' takes in a bushing 100 wherein；
Bushing 100 is transported at press-loading apparatus by splicing unit 2 ', is prepared for the press fitting operation of next step.Splicing unit
After 2 ' leave, lift unit 3 ' is separated with block 21 ', and block 21 ' declines, and bushing 100 is enclosed in locating piece 22 '；
After bushing 100 in splicing unit 2 ' is taken by press-loading apparatus, splicing unit 2 ' turns again to discharging raceway 1 ' and locates,
Repeat above-mentioned movement.
Further, as shown in Fig. 2, discharging raceway 1 ' is the channel of strip, multiple bushings 100 are in discharging raceway 1 '
It is arranged in a row.
Specifically, discharging raceway 1 ' is arranged in the horizontal direction, the width of discharging raceway 1 ' is slightly larger than the diameter of bushing 100,
Multiple bushings 100 are arranged successively one by one in discharging raceway 1 ', by the direction pushed one by one forward (i.e. to splicing unit 2 ')
Direction it is mobile.
Further, as shown in Figure 2 and Figure 4,12 ' place of discharge port is provided with positioning pin 13 ', when positioning pin 13 ' rises, uses
First bushing 100-1 in positioning discharging raceway 1 '；When positioning pin 13 ' declines, first bushing 100-1 can be by connecing
Material entrance 221 ' enters in locating piece 22 '.
Here " first bushing " refers to that bushing that the middle discharge port 12 ' of discharging raceway 1 ' is located.In first bushing
There are one bushing 100, the bushings 100 to have been introduced into locating piece 22 ' on the right side (in Fig. 3) of 100-1.At this point, positioning pin
13 ' rise, and limit the position of first bushing 100-1, also limit subsequent bushing (i.e. other bushings in left side in Fig. 3)
Position, prevent discharging raceway 1 ' in bushing continuation elapse forward.
After the bushing 100 in locating piece 22 ' is removed, locating piece 22 ' again returns to the place of discharge port 12 ', fixed at this time
There is no bushing 100 in the block 22 ' of position, positioning pin 13 ' declines, and for first bushing 100-1 under the pushing of subsequent bushing, it is fixed to enter
In the block 22 ' of position.
Positioning pin 13 ' can drive lifting by cylinder.
Further, as illustrated in figures 4-5, splicing unit 2 ' further includes installation axle 23 ', return spring 24 ' and bottom plate 25 ',
The bottom end of installation axle 23 ' is fixed on bottom plate 25 ', and block 21 ' is equipped with through-hole 211 ', and installation axle 23 ' passes through through-hole 211 ', peace
It fills and is equipped with return spring 24 ' between the top and block 21 ' of axis 23 ', block 21 ' can be along 23 ' oscilaltion of installation axle.
Specifically, the bottom end of installation axle 23 ' is fixedly connected by bolt with bottom plate 25 ', installation axle 23 ' passes through block 21 '
On through-hole 211 ', block 21 ' is above additionally provided with four mounting holes 214 ', and bolt 27 ' passes through mounting hole 214 ' and connect with a cushion block,
The bottom end of return spring 24 ' contacts cushion block, the top of the tip contact installation axle 23 ' of return spring 24 '.
When lift unit 3 ' promotes block 21 ', block 21 ' is moved up along installation axle 23 ', compresses return bullet at this time
Spring 24 '；When lift unit 3 ' is separated with block 21 ', block 21 ' is returned to initial bit under the action of return spring 24 '
It sets, when initial position, block 21 ' is contacted with bottom plate 25 '.
Further, as illustrated in figures 4-5, block 21 ' further comprises operand 212 ' and occlusion part 213 ', lift unit
3 ' can act on operand 212 ', and occlusion part 213 ' is for blocking or conceding splicing entrance 221 '.
Block 21 ' from the perspective of side view, form a step structure, operand 212 ' above offers through-hole
211 ', operand 212 ' is set in installation axle 23 '.When splicing unit 2 ' is moved to discharge port 12 ' and splicing entrance 221 ' is right
On time, lift unit 3 ' can just act on operand 212 ', and operand 212 ' is promoted, at this time occlusion part 213 '
Also it is driven promotion, so that splicing entrance 221 ' be made to open.
Further, as shown in figure 3, locating piece 22 ' above offers positioning groove 222 ', on the side wall of positioning groove 222 '
It opens up notch and forms splicing entrance 221 '.
Preferably, the cross section of positioning groove 222 ' is U-shaped.
Specifically, the straight line side of positioning groove 222 ', which opens up notch, forms splicing entrance 221 ', positioning groove 222 '
Circular arc side surrounds U-shaped, and the diameter of circular arc is just matched with the diameter of bushing 100.Bushing 100 enters positioning groove 222 '
In, the part side of bushing 100 is limited.After block 21 ' declines, the occlusion part 213 ' of block 21 ' just blocks splicing and enters
Mouth 221 ', is limited in the surrounding of bushing 100 in positioning groove 222 ', realizes the positioning of bushing 100.
Further, as shown in Figure 3 and Figure 5, splicing unit 2 ' further includes rotary cylinder 26 ', and rotary cylinder 26 ' drives fixed
Position block 22 ' and block 21 ' rotate.
In the present embodiment, rotary cylinder 26 ' drives entire splicing unit 2 ' to make 90 ° to carry out back rotation.In Fig. 3, work as splicing
After unit 2 ' accesses bushing 100, rotary cylinder 26 ' makes splicing unit 2 ' rotate clockwise 90 °, turns to where press-loading apparatus
Position.Press-loading apparatus is taken bushing 100, and bushing 100 is pressed into the small stomidium of connecting rod 500.Rotary cylinder 26 ' drives splicing again
Unit 2 ' rotates counterclockwise 90 °, and splicing unit 2 ' is made to return to position shown in Fig. 3, i.e. discharge port 12 ' and splicing entrance 221 ' is right
Quasi- position.
Optionally, splicing unit 2 ' can also be docked or be separated with discharging raceway 1 by translation, or the mode of lifting.
Further, as shown in Figure 3 and Figure 5, lift unit 3 ' includes wedge block 31 ',
When discharge port 12 ' is aligned with splicing entrance 221 ', wedge block 31 ' contacts with block 21 ' and promotes block；
Splicing unit 2 ' is removed, and wedge block 31 ' is separated with block 21 ', and block 21 ' declines.
Wherein, wedge block 31 ' includes an inclined surface, after which contacts with block 21 ', guidance or promotion block 21 '
It is promoted.
Optionally, lift unit can also be lifting cylinder, when discharging oral account splicing entrance alignment, lifting cylinder and gear
Block contact, lifting cylinder are able to drive block rising.When splicing unit is removed, lifting cylinder is separated with block, block decline.
Optionally, lifting cylinder also may be mounted in splicing unit, and lifting cylinder is contacted with block always, work as discharge port
When being aligned with the splicing entrance, control lifting cylinder promotes block, and when splicing unit is removed, control lifting cylinder will be under block
It moves.
Optionally, splicing unit 2 ' further includes being to switch is penetrated for detecting in locating piece 22 ' to switch (not shown) is penetrated
It is no to have bushing 100.
When to penetrating switch and detecting bushing 100, issue signal, positioning pin 13 ' rises at this time, discharge on raceway 1 ' the
One bushing 100-1 is fixed.Then splicing unit 2 ' rotates counterclockwise, and bushing 100 is transported at bushing press-mounting device.
Bushing press-mounting device
It is the structural schematic diagram of pressure head in one embodiment of the invention referring to Fig. 6-11.
As shown in fig. 6, pressure head 10, including pedestal 1, and the crawl section 2 axially extended from the middle part of pedestal 1, crawl
Portion 2 is cylindricality, radially offers at least three mounting holes 21 on crawl section 2, is equipped with the column that can be stretched in mounting hole 21
Plug 22；
In the inner hole that crawl section 2 is inserted into bushing 100, plunger 22 holds out against the inner wall of bushing 100, the crawl lining of pressure head 10
Set 100.
Specifically, the diameter or cross-sectional width of crawl section 2 are less than the diameter or cross-sectional width of pedestal 1.Crawl section 2
The diameter of bore of diameter or cross-sectional width again smaller than bushing 100.Crawl section 2 is inserted into the inner hole of bushing 100 in this way.
At least three mounting holes 21 are radially offered on crawl section 2, three mounting holes 21, which are spaced apart, respectively corresponds difference
Direction, when plunger 22 is stretched out from mounting hole 21, formed three-point fix, the three of the inner wall of bushing 100 can be held out against simultaneously
Place realizes the crawl to bushing 100.Since plunger 22 can stretch, during crawl section 2 is inserted into, plunger 22 is retracted into
In mounting hole 21, in the inner hole that crawl section 2 is inserted into bushing 100, mounting hole 21 is stretched out on the top of plunger 22, with bushing 100
Inner wall hold out against.
After grabbing bushing 100, bushing 100 can be pressed into the small stomidium of connecting rod 500 by pressure head 10, realized bushing 100 and connected
The assembly of bar.Therefore, the pressure head 10 in the present embodiment is the crawl for being able to achieve bushing, and is able to achieve the press fitting of bushing.And it is existing
Pressure head be only able to achieve the press fitting to bushing.
Further, as shown in Figure 6 and Figure 8, mounting hole 21 is axially disposed has two layers, and mounting hole 21 is pacified including first layer
There are three dress hole 21a and second layer mounting hole 21b, first layer mounting hole 21a and second layer mounting hole 21b is equal, first layer installation
Hole 21a is radially staggeredly arranged relative to second layer mounting hole 21b.
Specifically, altogether there are six mounting hole 21, six mounting holes 21 are from the center of crawl section 2 towards different directional divergences
Out, 120 ° are spaced between every layer of adjacent mounting hole, be staggered between the mounting hole of different layers 60 °.In this manner it is achieved that lining
6 points of crawls of set, grasp force is bigger, more stable.Figures 4-6 it can be seen that it is certain to be staggered between the mounting hole of different layers
Angle.But the angle is not limited to 60 °, or other angles make plunger 22 respectively to lining as long as can mutually stagger
The different location of set 100 is held out against, and reaches enough grasp forces and stability.
Optionally, in order to obtain bigger grasp force, mounting hole is also arranged so that three layers, and every layer can be two, or
Three or more.
Further, as Figure 7-8, the end face of crawl section 2 offers at least three top holes 23 vertically, each
Top hole 23 is corresponding to be connected to a mounting hole 21, Top fastening screw (not shown) is equipped in top hole 23, Top fastening screw is for pushing up
The side of tight plunger 22.
In the present embodiment, there are six top holes 23, is provided on the end face of crawl section 2, the center direction from crawl section 2
Different directional divergences go out, and 60 ° are spaced between adjacent top hole 23.But since wherein three top holes 23 and first layer are installed
Hole 21a is communicated, and the other three top hole 23 is communicated with second layer mounting hole 21b, therefore the depth of two groups of top holes is different, and two groups
The length of Top fastening screw in top hole 23 is not also identical.Top fastening screw is used to hold out against the side of plunger 22, prevents plunger 22 from existing
Play occurs in mounting hole 21.
Preferably, top hole 23 is threaded hole, for being screwed into Top fastening screw.
Further, as shown in figs. 9-10, at least three unthreaded holes 24, each unthreaded hole are radially also provided on crawl section 2
24 one mounting hole 21 of corresponding connection.
Specifically, unthreaded hole 24 is also classified into two layers, the corresponding one layer of mounting hole 21 of every layer of unthreaded hole 24, each unthreaded hole 24 also corresponds to one
A mounting hole 21.
As shown in figure 4, the extending direction of the first mounting hole 21a is correspondingly arranged on a unthreaded hole 24, and with the unthreaded hole 24
It communicates, unthreaded hole 24 behind plunger 22 for protruding into Allen wrench, the height of pilot plunger 22.
Further, as shown in figure 8, the center of pressure head 10 is offered along axial through-hole 3, through-hole 3 and mounting hole 21 connect
It is logical.
Specifically, through-hole 3 is located at the central axial direction of entire pressure head 10, through-hole 3 is not only connected to each mounting hole 21,
Also it is connected to each unthreaded hole 24.As shown in figs. 9-10, it needs to connect by through-hole 3 between unthreaded hole 24 and corresponding mounting hole 21
It is logical.
It is of course also possible to be not provided with through-hole 3, directly it is connected between unthreaded hole 24 and mounting hole 21.
Further, as shown in figure 8, in the top (right side that " top " here refers to the pedestal 1 in Fig. 8) of pedestal 1
The heart offers limit heavy platform 11.Limit heavy platform 11 is connected to through-hole 3, and the diameter of limit heavy platform 11 is greater than the diameter of through-hole 3.Limit
When bushing press-mounting device is described below in the effect of heavy platform 11, it will detailed description.
Further, as Figure 7-8, uniform intervals being gone back on pedestal 1 and offering four connecting holes 13, connecting hole 13 is used for
It is connect with the main shaft 30 in bushing press-mounting device by bolt 60.It can also be discussed in detail below.
Further, as shown in Figure 6 and Figure 8, the bottom surface of pedestal 1 is downward (" downward " here refers to the left side in Fig. 1)
Extend stage portion 12, the diameter or cross-sectional width of stage portion 12 are greater than the diameter or cross-sectional width of crawl section 2.
When crawl section 2 grabs bushing 100, bushing 100 is set in the periphery of crawl section 2, and bushing 100 is resisted against stage portion
On 12, bushing 100 is axially positioned in the stage portion 12 of pressure head 10, to guarantee the compression distance of bushing 100 during press fitting.
Alternatively it is also possible to be not provided with stage portion 12, bushing 100 is abutted directly against on the end face of pedestal 1.
Further, as shown in figs. 9-11, crawl section 2 is cylinder.At this point, the two sides of mounting hole 21 are arc surface, circle
Cambered surface plays the role of protection to plunger 22, not easy to wear when plunger 22 stretches.
Preferably, plunger 22 is spring-loaded plunger.Mounting hole 21 can be threaded hole, and spring-loaded plunger screws in mounting hole 21.
Referring to shown in Figure 12-14, for the structural schematic diagram for inventing bushing press-mounting device in another embodiment.
Bushing press-mounting device, including servo electric cylinders 20, main shaft 30 and pressure head 10；
Servo electric cylinders 20 are able to drive about 30 main shaft and stretch, and pressure head 10 is mounted on the bottom end of main shaft 30.
Specifically, servo electric cylinders 20 are connect with the top of main shaft 30, and servo electric cylinders 20 drive about 20 main shaft flexible, main shaft
20 is flexible with about 10 dynamic head again, realizes crawl of the pressure head 10 to bushing 100, moreover it is possible to realize and bushing 100 is pressed into connecting rod.
Further, as illustrated by figs. 12-13, bushing press-mounting device further includes angular transducer 40 and servo motor 50, angle
Degree sensor 40 is used to detect the notch of bushing 100, and servo motor 50 drives 30 rotation of main shaft, when angular transducer 40 detects
When notch, servo motor 50 controls main shaft 30 and stops operating.
Specifically, servo motor 50 is located at the side of main shaft 30, servo motor 50 is connect with retarder 51, servo motor 50
Drive retarder 51 rotate, 51 output shaft of retarder drive driving gear 51 rotate, by gear engagement impart power to from
Moving gear 52, driven gear 52 is connected by flat key again drives main shaft 30 to rotate.
When work:
Servo electric cylinders 20 drive main shaft 30 to decline, and main shaft 30 declines with dynamic head 10, and pressure head 10 grabs bushing 100；
Servo electric cylinders 20 drive main shaft 30 to rise again, and main shaft 30 rises with dynamic head 10, and pressure head 10 drives bushing 100 to rise
It is located in same level to angular transducer 40；
Servo motor 50 drives main shaft 30 to rotate, and main shaft 30 is rotated with dynamic head 10 and bushing 100；
When angular transducer 40 detects the notch of bushing 100, signal is passed into PLC controller, servo motor 50
Rotation stops, and realizes the positioning of bushing 100, prepares for the press fitting of next step.
Since the angle between the notch position and connecting rod big small end line position of technique requirement bushing 100 is
15°-35°.Therefore, as shown in figure 13, the position where angular transducer 40 relative to connecting rod big small end line position (i.e.
Horizontal line in Figure 13) between angle be chosen for 25 ° it is more appropriate.
Further, as shown in figure 14, the bottom end of main shaft 30 extends downwardly out boss 301, and the top center of pedestal 1 opens up
There is limit heavy platform 11, boss 301 is inserted into limit heavy platform 11, realizes the positioning to pressure head 10.Then, pressure head 10 and main shaft 30
Between pass through connecting hole 13 by four bolts 60 again and be attached.
Bushing press-mounting device in the present embodiment can complete the crawl of bushing, positioning, press fitting a series of actions, have at
This is low, easy to operate, the advantages that occupying little space.
The pressing method of connecting rob bushing press mounting system, comprising the following steps:
Step S101: discharge port 12 ' is aligned with splicing entrance 221 '；
Step S102: lift unit 3 ' promotes block 21 ', and block 21 ' concedes splicing entrance 221 ', and bushing 100 is from discharging
Mouth 12 ' is entered in locating piece 22 ' by splicing entrance 221 '；
Step S103: splicing unit 2 ' removes the underface that bushing 100 is transported to pressure head 10, lift unit 3 ' and block
21 ' separation, block 21 ' decline and block splicing entrance 221 '；
Step S104: servo electric cylinders 20 drive main shaft 30 to decline；
Step S105: pressure head 10 is inserted into the inner hole of bushing 100；
Step S106: plunger 22 holds out against the inner wall of bushing 100, and pressure head 10 grabs bushing 100；
Step S107: servo electric cylinders 20 drive main shaft 30 to rise；
Step S108: servo motor 50 drives 30 rotation of main shaft, while angular transducer 40 detects the notch of bushing 100；
Step S109: when angular transducer 40 detects notch, servo motor 50 controls main shaft 30 and stops operating；
Step S110: connecting rod 500 is sent at connecting rod press fitting positioning plate by connecting rod automatic loading and unloading device 300, so that
The small stomidium and pressure head 10 of connecting rod 500 are located on same central axis；
Step S111: servo electric cylinders 20 drive main shaft 30 to decline again；
Step S112: bushing 100 is pressed into the small stomidium of connecting rod 500 by pressure head 10；
Step S113: pressure head 10 discharges bushing 100；
Step S114: servo electric cylinders 20 drive main shaft 30 to rise again.
Step S115: connecting rod automatic loading and unloading device 300 takes the connecting rod 500 after press fitting away.
Wherein, step S S101-S103 is the splicing process of a bushing, and the splicing of next bushing repeats above-mentioned step
Suddenly；
Step S104-S109, S111-S114 are the process for completing a bushing press-mounting, and the press fitting of next bushing repeats
Above-mentioned steps.
By implementing the pressing method in the present embodiment, splicing, crawl, positioning, the press fitting that can complete bushing are a series of
Operation, required time is short, at low cost.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as protection model of the invention
It encloses.
Claims (12)
1. a kind of connecting rob bushing press mounting system, which is characterized in that filled including bushing automatic material connection device, connecting rod automatic loading/unloading
It sets, connecting rod is pressed positioning plate and bushing press-mounting device；
The bushing automatic material connection device is for bushing to be sent at the bushing press-mounting device；
The connecting rod automatic loading and unloading device is used to for connecting rod being sent at the connecting rod press fitting positioning plate；
The connecting rod press fitting positioning plate is located at the lower section of the bushing press-mounting device, for positioning the connecting rod before being pressed；
The bushing is pressed into the small stomidium of the connecting rod by the bushing press-mounting device for grabbing the bushing；
The connecting rod automatic loading and unloading device is used to take away on the connecting rod after press fitting；Wherein bushing automatic material connection device, packet
Include material raceway, splicing unit and lift unit；
The discharging raceway includes inlet port and outlet port；
The splicing unit includes block and locating piece, and the locating piece is equipped with splicing entrance；
When the discharge port is aligned with the splicing entrance, the lift unit promotes the block, and the block concedes institute
Splicing entrance is stated, the bushing is entered in the locating piece from the discharge port by the splicing entrance；
The splicing unit is removed, and the lift unit is separated with the block, and the block declines and block the splicing
Mouthful.
2. connecting rob bushing press mounting system according to claim 1, which is characterized in that the splicing unit further includes installation
Axis, return spring and bottom plate, the bottom end of the installation axle are fixed on the bottom plate, and the block is equipped with through-hole, the peace
It fills axis and passes through the through-hole, return spring is equipped between the top of the installation axle and the block, the block can be along institute
State installation axle oscilaltion.
3. connecting rob bushing press mounting system according to claim 1, which is characterized in that the splicing unit further includes rotary pneumatic
Cylinder, the rotary cylinder drive the locating piece and block rotation.
4. connecting rob bushing press mounting system according to claim 1, which is characterized in that the lift unit includes wedge block,
When the discharge port is aligned with the splicing entrance, the wedge block contacts with the block and promotes the block；
The splicing unit is removed, and the wedge block is separated with the block, the block decline.
5. connecting rob bushing press mounting system according to claim 1, which is characterized in that the bushing press-mounting device includes servo
Electric cylinders, main shaft and pressure head；
The servo electric cylinders are able to drive the main shaft and stretch up and down, and the pressure head is mounted on the bottom end of the main shaft；
The pressure head, including pedestal, and the crawl section axially extended in the middle part of the pedestal, the crawl section are column
Shape radially offers at least three mounting holes on the crawl section, the plunger that can be stretched is equipped in the mounting hole；
In the inner hole that the crawl section is inserted into bushing, the plunger holds out against the inner wall of the bushing, the pressure head crawl
The bushing.
6. connecting rob bushing press mounting system according to claim 5, which is characterized in that the end face of the crawl section is vertically
At least three top holes are offered, each top hole is corresponding to be connected to a mounting hole, is equipped in the top hole
Top fastening screw, the Top fastening screw are used to hold out against the side of the plunger.
7. connecting rob bushing press mounting system according to claim 5, which is characterized in that radially also opened up on the crawl section
There are at least three unthreaded holes, one mounting hole of each corresponding connection of the unthreaded hole.
8. connecting rob bushing press mounting system according to claim 5, which is characterized in that the bushing press-mounting device further includes angle
Sensor and servo motor are spent, the angular transducer is used to detect the notch of the bushing, described in the servo motor drives
Main shaft rotation, when the angular transducer detects the notch, main shaft described in the Serve Motor Control stops operating.
9. a kind of pressing method for connecting rob bushing press mounting system described in claim 1, which is characterized in that including following step
It is rapid:
Bushing is sent at the bushing press-mounting device by the bushing automatic material connection device；
Connecting rod is sent at the connecting rod press fitting positioning plate by the connecting rod automatic loading and unloading device；
The bushing press-mounting device grabs the bushing, and the bushing is pressed into the small stomidium of the connecting rod；
The connecting rod automatic loading and unloading device takes the connecting rod after press fitting away.
10. pressing method according to claim 9, which is characterized in that
The bushing press-mounting device includes servo electric cylinders, main shaft and pressure head；
The servo electric cylinders are able to drive the main shaft and stretch up and down, and the pressure head is mounted on the bottom end of the main shaft；
The pressure head, including pedestal, and the crawl section axially extended in the middle part of the pedestal, the crawl section are column
Shape radially offers at least three mounting holes on the crawl section, the plunger that can be stretched is equipped in the mounting hole；
In the inner hole that the crawl section is inserted into bushing, the plunger holds out against the inner wall of the bushing, the pressure head crawl
The bushing；
The bushing press-mounting device grabs the bushing, and by the bushing be pressed into the step in the small stomidium of the connecting rod into
One step includes:
The servo electric cylinders drive the main shaft decline；
The pressure head is inserted into the inner hole of the bushing；
The plunger holds out against the inner wall of the bushing, and the pressure head grabs the bushing；
The servo electric cylinders drive the main shaft to rise；
The servo electric cylinders drive the main shaft to decline again；
The bushing is pressed into the small stomidium of the connecting rod by the pressure head；
The pressure head discharges the bushing；
The servo electric cylinders drive the main shaft to rise again.
11. pressing method according to claim 10, which is characterized in that the bushing press-mounting device further includes angle sensor
Device and servo motor；
Before the step of servo electric cylinders drive the main shaft to decline again, further includes:
The servo motor drives the main shaft rotation, while the angular transducer detects the notch of the bushing；
When the angular transducer detects the notch, main shaft described in the Serve Motor Control stops operating.
12. pressing method according to claim 9, which is characterized in that the bushing automatic material connection device includes discharge roller
Road, splicing unit and lift unit；
The discharging raceway includes inlet port and outlet port；
The splicing unit includes block and locating piece, and the locating piece is equipped with splicing entrance；
The step of bushing is sent at the bushing press-mounting device by the bushing automatic material connection device further comprises:
The discharge port is aligned with the splicing entrance；
The lift unit promotes the block, and the block concedes the splicing entrance, and the bushing is logical from the discharge port
The splicing entrance is crossed to enter in the locating piece；
The splicing unit, which is removed, is sent to the bushing at the bushing press-mounting device, the lift unit and the block
Separation, the block decline and block the splicing entrance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710611491.7A CN107297611B (en) | 2017-07-25 | 2017-07-25 | Connecting rod bushing press-fitting system and press-fitting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710611491.7A CN107297611B (en) | 2017-07-25 | 2017-07-25 | Connecting rod bushing press-fitting system and press-fitting method |
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| CN107297611B true CN107297611B (en) | 2019-06-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340152B (en) * | 2018-01-19 | 2020-02-21 | 缙云县博新机械有限公司 | Semi-automatic assembly quality of reduction gear |
| CN110977399B (en) * | 2019-12-24 | 2021-11-09 | 潍柴火炬科技股份有限公司 | Automatic press fitting equipment for oil pump copper bush |
| CN111805205A (en) * | 2020-07-07 | 2020-10-23 | 东风本田汽车零部件有限公司 | Automatic press-in device for connecting rod copper sleeve |
| CN112756945A (en) * | 2021-01-29 | 2021-05-07 | 东风汽车集团股份有限公司 | Joint head bush press-fitting equipment |
| CN115026651B (en) * | 2022-05-31 | 2024-03-26 | 玉环普天单向器有限公司 | Full-automatic processing system and processing method of output shaft |
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| CN101362286A (en) * | 2008-09-26 | 2009-02-11 | 广东四会实力连杆有限公司 | Connecting rod bushing press-loading device and method |
| CN102744592A (en) * | 2012-07-23 | 2012-10-24 | 江苏松林汽车零部件有限公司 | Press-fitting and locating mechanism and press-fitting method of wedge-shaped connecting rod bush |
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Effective date of registration: 20200814 Address after: 510800, Fengshen Road, Huadu District, Guangdong, Guangzhou 12 Co-patentee after: DONGFENG MOTER Co.,Ltd. Patentee after: FENGSHEN XIANGYANG AUTOMOBILE Co.,Ltd. Address before: 510800, Fengshen Road, Huadu District, Guangdong, Guangzhou 12 Patentee before: DONGFENG MOTER Co.,Ltd. |