CN207447834U - Rear axle shaft bolt pressing machine - Google Patents
Rear axle shaft bolt pressing machine Download PDFInfo
- Publication number
- CN207447834U CN207447834U CN201721466368.2U CN201721466368U CN207447834U CN 207447834 U CN207447834 U CN 207447834U CN 201721466368 U CN201721466368 U CN 201721466368U CN 207447834 U CN207447834 U CN 207447834U
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- CN
- China
- Prior art keywords
- fixture
- rear axle
- axle shaft
- tracheae
- elongation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of rear axle shaft bolt pressing machines, including rack, it is provided with to clamp the fixture of rear axle shaft in rack, multiple cylinders are provided in the rack, the quantity of the cylinder is identical with the quantity of bolt hole, the shortening inlet end that the cylinder includes the elongation inlet end of ventilation elongation and ventilation is shortened, the tailpiece of the piston rod of each cylinder is both provided with to place the fixture block of fastening bolt, multiple fixture blocks are right against multiple bolts hole respectively, Zhi Shenchang tracheaes are connected on each elongation inlet end, the other end of the more Zhi Shenchang tracheaes is connected with principal elongation tracheae, the principal elongation tracheae connects all Zhi Shenchang tracheaes.The press fitting process of this rear axle shaft bolt pressing machine is steady, reliable, significantly improves the success rate of press fitting fastening bolt, while easy to operate, press fitting precision height.
Description
Technical field
The utility model is related to a kind of component assembly equipment, particularly a kind of rear axle shaft bolt pressing machine.
Background technology
As shown in Figure 1, a kind of rear axle shaft of electric vehicle, for by the trailing wheel of the output terminal of car deceleration device and automobile
It is connected and transfers torque, including transmission shaft 1, is arranged on the terminal pad 11 of 1 one end of transmission shaft, terminal pad 11 is close to transmission shaft 1
Locating ring 12 is provided on end face, offers multiple bolts hole 111 in terminal pad 11, interference is matched somebody with somebody respectively in each bolt hole 111
Conjunction has fastening bolt 13, and fastening bolt 13 is used to fix the wheel hub of wheel and terminal pad 11.It is fixed to be offered in fastening bolt 13
Plane 131, positioning surface 131 are used to offset to limit fastening bolt 13 with locating ring 12 to rotate in terminal pad 11.By
It is interference fitted in fastening bolt 13 and bolt hole 111, so being difficult to be completed the installation of fastening bolt 13 with manpower, in the prior art
The process that fastening bolt 13 is pressed into corresponding bolt hole 111 is generally completed by pressing machine.
Existing publication No. is that the application for a patent for invention of CN105058038A discloses a kind of automatic screw fixing machine, including work
Platform, the cylinder for being right against workbench, cylinder bottom are provided with the head that screws.Workpiece is placed in work stage, opens cylinder, cylinder
The head that screws is driven to move downward the screw for making to screw on head to squeeze among workpiece.The operation principle of pressing machine screws with this
Machine is similar.
When general pressing machine is pressed multiple fastening bolt 13 at the same time, generally use list cylinder is pressed multiple fastenings
The mode of bolt 13, since the tightness that each fastening bolt 13 penetrates corresponding bolt hole 111 has difference, so press fitting process
In screw the easy run-off the straight of head, it is understood that there may be the situation of multiple 13 unbalance stress of fastening bolt, fastening bolt 13 are difficult to together
When be press-fit into place, the success rate of press fitting is relatively low.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of press fittings of rear axle shaft bolt
Machine can improve the success rate of press fitting fastening bolt.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of rear axle shaft bolt
Pressing machine including rack, is provided with to clamp the fixture of rear axle shaft in the rack, multiple gas is provided in the rack
Cylinder, the quantity of the cylinder is identical with the quantity of bolt hole, and the cylinder includes the elongation inlet end of ventilation elongation and ventilation is contracted
Short shortening inlet end, the tailpiece of the piston rod of each cylinder is both provided with to place the fixture block of fastening bolt, multiple described
Fixture block is right against multiple bolts hole respectively, and Zhi Shenchang tracheaes, the more branch are connected on each elongation inlet end
The other end of elongation tracheae is connected with principal elongation tracheae, and the principal elongation tracheae connects all Zhi Shenchang tracheaes.
Through the above technical solutions, after by fixture, rear axle shaft clamping is stablized, placed respectively on each fixture block
Then fastening bolt to be pressed connects the source of the gas of compressed air on principal elongation tracheae, then the elongation of each cylinder, and by each fastening
Bolt is pressed into corresponding bolt hole, since each fastening bolt is by independent cylinder and fixture block drive motion, even if fixture block is sent out
Raw to tilt, each fastening bolt also can directly afford the pressing force being transmitted to from corresponding cylinder, until completely into bolt hole
It is interior, and multiple elongation inlet ends are interconnected, and can balance the pressure in each cylinder, make each cylinder action in each fastening bolt
Power it is more balanced, press fitting process is steady, reliable, significantly improves the success rate of press fitting fastening bolt.
Preferably, clip slot, cross-sectional shape and fastening bolt and its positioning surface of the clip slot are offered on the fixture block
Match.
Through the above technical solutions, fastening bolt is positioned on clip slot, and its positioning surface is made to be stuck in the correspondence position of clip slot
It puts, clip slot is used to limit the direction of fastening bolt, and each positioning surface is precisely directed in locating ring after enabling press fitting fastening bolt.
Preferably, the fixture includes the first fixture and the second fixture that are slidably arranged in rack, first fixture
It is arranged oppositely, offers on first fixture and the second fixture for the card slot for terminal pad insertion with the second fixture.
Through the above technical solutions, during clamping, rear axle shaft is placed between the first fixture and the second fixture, is then slided
First fixture and the second fixture are close to each other, two card slots are finally made to be clamped in the both sides of terminal pad, by rear axle shaft reliably
It clamps, this clamp structure is simple and convenient to operate.
Preferably, the oral area of the card slot is provided with chamfering.
Through the above technical solutions, when terminal pad offsets with chamfering, chamfering plays an important role of to be oriented to terminal pad, facilitates connection
Disk is caught in along chamfering in card slot.
Preferably, set in the rack there are two clamping cylinder, two clamping cylinders are used to respectively drive first
Fixture and the second fixture slide.
Through the above technical solutions, the first fixture and the second clamp terminal pad are driven after two clamping cylinder elongations,
Terminal pad is subject to the pressing force from two clamping cylinders always, and clamping is more firm.
Preferably, the fixture includes the 3rd fixture being fixed in rack, and the 3rd fixture is located at the first folder
Have the homonymy with the second fixture, offer to be caught in the fixing groove of terminal pad on the 3rd fixture.
Through the above technical solutions, during clamping, first the terminal pad of rear axle shaft is caught in fixing groove, and make terminal pad with
Fixing groove is correctly bonded, and completes the Primary Location of rear axle shaft, after the first fixture and the second fixture is made to be slided to terminal pad direction
Can directly clamp the correspondence position of terminal pad, clamping it is more efficient.
Preferably, pressure switch is provided on the 3rd fixture, the pressure switch is located at the slot bottom of fixing groove, described
Pressure switch controls the action of two clamping cylinders by circuit, and the first fixture and the second fixture is made to be slided toward direction adjacent to each other
It is dynamic.
Through the above technical solutions, while terminal pad is caught in fixing groove completely, terminal pad presses pressure switch, and pressure is opened
It closes and the actions of two clamping cylinders is controlled by circuit, make that two clamping cylinders respectively drive the first fixture and the second fixture mutually leans on
Closely, two card slots is finally made to be clamped in the both sides of terminal pad, pressure switch realizes the first fixture and the second fixture slides from
Dynamicization saves manpower.
Preferably, solenoid directional control valve is further included, each described shorten is connected to branch shortening tracheae on inlet end, more
The other end that the branch shortens tracheae is connected with main shortening tracheae, and the main shortening tracheae shortens tracheae connection, institute by all
It states main shortening tracheae and principal elongation tracheae is connected to two output terminals of solenoid directional control valve.
Through the above technical solutions, being passed through the source of the gas of compressed air in the input terminal of solenoid directional control valve in advance, then need to only cut
Change the switch of solenoid directional control valve, you can change compressed air and be input into the direction of each cylinder, while realizing each cylinder elongation or
Shorten, high degree of automation.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：This rear axle shaft bolt pressing machine
Press fitting process is steady, reliable, significantly improves the success rate of press fitting fastening bolt, while easy to operate, press fitting precision height.
Description of the drawings
Fig. 1 is the stereogram of rear axle shaft in background technology and embodiment, mainly protrusion rear axle shaft and fastening bolt
Structure；
Fig. 2 is the stereogram of this rear axle shaft bolt pressing machine, mainly protrudes the entirety of this rear axle shaft bolt pressing machine
Structure；
Fig. 3 is the conduit line map of each cylinder in embodiment, mainly protrudes the pipeline layout of each cylinder；
Fig. 4 is enlarged drawing at the A of Fig. 2, the structure of fixture in main prominent embodiment；
Fig. 5 is the cooperation figure of this pressing machine and rear axle shaft, after the completion of main prominent fastening bolt press fitting this pressing machine and
The connection structure of rear axle shaft.
Reference numeral：1st, transmission shaft；11st, terminal pad；12nd, locating ring；111st, bolt hole；13rd, fastening bolt；131st, position
Face；2nd, rack；21st, workbench；3rd, fixture；4th, cylinder；211st, feeding groove；41st, inlet end is extended；42nd, inlet end is shortened；511、
Zhi Shenchang tracheaes；51st, principal elongation tracheae；521st, branch shortens tracheae；52nd, main shortening tracheae；6th, solenoid directional control valve；61st, arrival end；
62nd, the port of export；7th, fixture block；71st, clip slot；31st, the first fixture；32nd, the second fixture；33rd, the 3rd fixture；8th, clamping cylinder；311、
Card slot；331st, fixing groove；332nd, pressure switch.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model be subject to Patent Law.
As shown in Fig. 2, a kind of rear axle shaft bolt pressing machine, including rack 2, the upper surface of rack 2 is workbench 21.Work
Make to be provided with the fixture 3 for clamping rear axle shaft on platform 21, also set up that there are four for being pressed fastening bolt on workbench 21
13 cylinder 4, in the present embodiment, 111 quantity of bolt hole of rear axle shaft is four.
The feeding groove 211 with the perforation of 2 one side of rack is offered on workbench 21, four cylinders 4 are divided into two pairs of difference positions
In the both sides of feeding groove 211, the tailpiece of the piston rod of four cylinders 4 is set up, and the arrangement mode and four bolts of four cylinders 4
The arrangement mode in hole 111 is identical.As shown in figure 3, each cylinder 4 includes the elongation inlet end 41 of ventilation elongation and ventilation is shortened
Shortening inlet end 42, each extend be connected to Zhi Shenchang tracheaes 511 on inlet end 41, four Zhi Shenchang tracheaes 511
The other end is connected with principal elongation tracheae 51, and principal elongation tracheae 51 connects all Zhi Shenchang tracheaes 511.It is each to shorten inlet end 42
On be connected to branch and shorten tracheae 521, the other end that more branch shorten tracheaes 521 is connected with main shortening tracheae 52, main shortening
Tracheae 52 connects all shortening tracheaes 521.Solenoid directional control valve 6 is additionally provided in rack 2, solenoid directional control valve 6 is two five
General formula, including an arrival end 61 and two ports of export 62, arrival end 61 is used to connect the source of the gas of compressed air, two ports of export
62 end respectively with main shortening tracheae 52 and principal elongation tracheae 51 is connected, and the switch of switching solenoid directional control valve 6 can change pressure
The conducting direction of contracting air, so as to elongating or shortening for four cylinders 4 of control simultaneously.
The tailpiece of the piston rod of each cylinder 4 is both provided with to place the fixture block 7 of fastening bolt 13, is opened on each fixture block 7
Equipped with clip slot 71, cross-sectional shape and the fastening bolt 13 and its positioning surface 131 of clip slot 71 match.
As shown in Fig. 2, fixture 3 includes the first fixture 31 being slidably arranged on workbench 21 and the second fixture 32, fixes
The 3rd fixture 33 on workbench 21.First fixture 31 and the second fixture 32 respectively positioned at the both sides of feeding groove 211 and to
It setting, the 3rd fixture 33 is located at the homonymy of the first fixture 31 and the second fixture 32, and positioned at the position of 211 inner end of feeding groove.The
One fixture 31, the second fixture 32 are slidably connected by the fit system of sliding block sliding slot with realizing with workbench 21, and sliding
Dynamic direction is located along the same line.It is also set up on workbench 21 there are two clamping cylinder 8, two clamping cylinders 8 are located at the respectively
One fixture 31 and the opposite both sides of the second fixture 32, the tailpiece of the piston rod of two clamping cylinders 8 are individually fixed in 31 He of the first fixture
On second fixture 32.Clamping cylinder 8 for respectively driving the first fixture 31 and the second fixture 32 slides, two clamping cylinders 8
Source of the gas mutually passes to realization simultaneous retractable.
As shown in figure 4, offer card slot 311, the 3rd fixture 33 on the first fixture 31 and the opposite face of the second fixture 32
Fixing groove 331 is offered towards the centre position of the first fixture 31 and the second fixture 32, fixing groove 331 and two card slots 311
Height is opened up to be located in same level.Fixing groove 331 is identical with the flute profile of two card slots 311, and with 11 corresponding position of terminal pad
The shape and thickness put match.The oral area of fixing groove 331 and two card slots 311 be both provided with terminal pad 11 is facilitated to be caught in fall
Angle.Pressure switch 332 is provided on 3rd fixture 33, pressure switch 332 is located at the slot bottom of fixing groove 331, and pressure switch 332 is
Push switch, pressure switch 332 controls the source of the gas direction of clamping cylinder 8 by circuit, so as to which clamping cylinder 8 be controlled to extend.
During clamping, the transmission shaft 1 of rear axle shaft is put into feeding groove 211, terminal pad 11 is then caught in fixing groove 331
It is interior, and terminal pad 11 is made correctly to be bonded with fixing groove 331.While terminal pad 11 is caught in fixing groove 331 completely, terminal pad 11 is pressed
Lower pressure switch 332, pressure switch 332 are extended by two clamping cylinders 8 of circuit indirect control, and two clamping cylinders 8 are distinguished
It drives the first fixture 31 and the second fixture 32 close to each other, two card slots 311 is finally made to be clamped in the both sides of terminal pad 11, first
Fixture 31, the second fixture 32 and 33 collective effect of the 3rd fixture, rear axle shaft is reliably clamped.
After the completion of clamping, four fastening bolts 13 to be pressed are placed on four clip slots 71 respectively, and make the end of thread
Vertically upward.Then switch the conducting direction of solenoid directional control valve 6, make external compressed air turn on elongation in each cylinder 4 into
Gas end 41, then each cylinder 4 extends, and each fastening bolt 13 is pressed into corresponding bolt hole 111.Due to each fastening bolt 13
By 7 drive motion of independent cylinder 4 and fixture block, even if 7 run-off the straight of fixture block, each fastening bolt 13 also can be afforded directly from right
The pressing force that cylinder 4 is answered to be transmitted to, until completely into bolt hole 111.And multiple elongation inlet ends 41 are interconnected, energy
The pressure in each cylinder 4 is enough balanced, makes the power that each cylinder 4 is acted in each fastening bolt 13 more balanced, press fitting process is steady, can
It leans on, and it is high to be pressed precision.
After the completion of fastening bolt 13 is pressed, the cooperation of this pressing machine and rear axle shaft is as shown in Figure 5.Then switching electromagnetism changes
To the conducting direction of valve 6, external compressed air is made to turn in the shortening inlet end 42 of each cylinder 4, then each cylinder 4 shortens, often
A fixture block 7 sets back.Then two clamping cylinders 8 are operated to shorten, the first fixture 31 and the second fixture 32 is separated, finally takes
Go out rear axle shaft and complete entire press fitting process.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the scope of protection of the utility model is determined by appended claim.
Claims (8)
1. a kind of rear axle shaft bolt pressing machine, including rack (2), it is characterized in that：It is provided with to clamp on the rack (2)
The fixture (3) of rear axle shaft is provided with multiple cylinders (4), the quantity and bolt hole of the cylinder (4) on the rack (2)
(111) quantity is identical, the shortening inlet end that the cylinder (4) includes the elongation inlet end (41) of ventilation elongation and ventilation is shortened
(42), the tailpiece of the piston rod of each cylinder (4) is both provided with to place the fixture block (7) of fastening bolt (13), multiple described
Fixture block (7) is right against multiple bolts hole (111) respectively, and Zhi Shenchang tracheaes are connected on each elongation inlet end (41)
(511), the other end of the more Zhi Shenchang tracheaes (511) is connected with principal elongation tracheae (51), the principal elongation tracheae (51)
All Zhi Shenchang tracheaes (511) are connected.
2. rear axle shaft bolt pressing machine according to claim 1, it is characterized in that：Clip slot is offered on the fixture block (7)
(71), the cross-sectional shape of the clip slot (71) matches with fastening bolt (13) and its positioning surface (131).
3. rear axle shaft bolt pressing machine according to claim 1, it is characterized in that：The fixture (3), which includes sliding, to be set
The first fixture (31) and the second fixture (32) in rack (2), first fixture (31) and the second fixture (32) are to setting
It puts, is offered on first fixture (31) and the second fixture (32) for for the embedded card slot (311) of terminal pad (11).
4. rear axle shaft bolt pressing machine according to claim 3, it is characterized in that：The oral area of the card slot (311) is set
There is chamfering.
5. rear axle shaft bolt pressing machine according to claim 3, it is characterized in that：There are two being set on the rack (2)
Clamping cylinder (8), two clamping cylinders (8) are slided for respectively driving the first fixture (31) and the second fixture (32).
6. rear axle shaft bolt pressing machine according to claim 5, it is characterized in that：The fixture (3) includes fixed setting
The 3rd fixture (33) in rack (2), the 3rd fixture (33) are located at the same of the first fixture (31) and the second fixture (32)
Side offers to be caught in the fixing groove (331) of terminal pad (11) on the 3rd fixture (33).
7. rear axle shaft bolt pressing machine according to claim 6, it is characterized in that：It is provided on 3rd fixture (33)
Pressure switch (332), the pressure switch (332) are located at the slot bottom of fixing groove (331), and the pressure switch (332) passes through electricity
Road controls the action of two clamping cylinders (8), and the first fixture (31) and the second fixture (32) is made to be slided toward direction adjacent to each other.
8. rear axle shaft bolt pressing machine according to claim 1, it is characterized in that：Solenoid directional control valve (6) is further included, each
Branch is connected on the shortening inlet end (42) and shortens tracheae (521), the more branch shorten the other end of tracheae (521)
Main shortening tracheae (52) is connected with, the main shortening tracheae (52) is shortened tracheae (521) by all and connected, the main shortening gas
Pipe (52) and principal elongation tracheae (51) are connected to two output terminals of solenoid directional control valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466368.2U CN207447834U (en) | 2017-11-06 | 2017-11-06 | Rear axle shaft bolt pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466368.2U CN207447834U (en) | 2017-11-06 | 2017-11-06 | Rear axle shaft bolt pressing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207447834U true CN207447834U (en) | 2018-06-05 |
Family
ID=62254125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721466368.2U Expired - Fee Related CN207447834U (en) | 2017-11-06 | 2017-11-06 | Rear axle shaft bolt pressing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207447834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791052A (en) * | 2020-07-16 | 2020-10-20 | 商江华 | Automobile rear axle half shaft bolt press-fitting equipment |
-
2017
- 2017-11-06 CN CN201721466368.2U patent/CN207447834U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791052A (en) * | 2020-07-16 | 2020-10-20 | 商江华 | Automobile rear axle half shaft bolt press-fitting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20181106 |