CN206702653U

CN206702653U - A kind of cam axial end boring grab

Info

Publication number: CN206702653U
Application number: CN201720254513.4U
Authority: CN
Inventors: 杜诗雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-15
Filing date: 2017-03-15
Publication date: 2017-12-05
Anticipated expiration: 2027-03-15

Abstract

The utility model discloses a kind of cam axial end boring grab, including bottom plate, the riser being vertically arranged is installed on the bottom plate, one end of the riser is provided with stationary positioned seat, the other end is provided with activity orientation seat, the stationary positioned seat includes the fixed locating stud set towards the activity orientation seat, and the end of the fixed locating stud has the frustum that the taper hole with the end of camshaft one end to be positioned matches；The activity orientation seat includes being capable of the vertically flexible telescoping mechanism in direction, there is loose pin that is relative with the fixed locating stud and being coaxially disposed, the end of the loose pin has the frustum that the taper hole with the end of the camshaft other end to be positioned matches on the telescoping mechanism.There is the utility model the Form and position error of periphery that can avoid camshaft machining accuracy is had an impact, and is advantageous to improve machining accuracy, simplifies manufacturing procedure, be advantageous to save production cost, simple in construction, it is easy to operate the advantages that.

Description

A kind of cam axial end boring grab

Technical field

Engine component processing technique field is the utility model is related to, drills and presss from both sides in particular to a kind of cam axial end Tool.

Background technology

As shown in FIG. 1 to 3,60 ° of taper holes are respectively provided with the both ends axle center of camshaft, are now required in the outer of its one end One φ 5 of brill dowel hole and four φ 4 oilhole on nose circle face, it is desirable to axis of the dowel hole hole heart apart from camshaft Distance is 11 ± 0.04mm, and the angle between the line of the two and the positioning boss center line of camshaft is 101 ° 20 ' ± 2 °.

Existing clamp for machining using two in 90 ° of V-arrangement locating piece respectively to the φ 23.2 at the both ends on camshaft Periphery is supported positioning, to ensure repetitive positioning accuracy of the product on lathe.Two peripheries of φ 23.2 on camshaft Generally use smart car or precision grinding process processing, but in smart car process, because lathe tool wears, or outer round surface hardness is uneven It is even, cause this size of φ 23.2 and cylindrical bounce overproof so that centre-to-centre spacing fluctuates, and artificial monitoring is more difficult.Produced in process Raw iron pin is adhered in V-shaped positioning surface, or excircle of workpiece is not clean, if operator does not blow clean, can cause to position It is inaccurate, it will also result in centre-to-centre spacing fluctuation.So as to cause the position error of camshaft larger so that the precision of cam axial end drilling It can not meet to require.

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is：How to provide one kind can To avoid the Form and position error of the periphery of camshaft from having an impact machining accuracy, be advantageous to improve machining accuracy, simplify processing Process, be advantageous to save the cam axial end boring grab of production cost.

In order to solve the above-mentioned technical problem, the utility model employs following technical scheme：

A kind of cam axial end boring grab, it is characterised in that including bottom plate, be provided with what is be vertically arranged on the bottom plate Riser, one end of the riser are provided with stationary positioned seat, and the other end is provided with activity orientation seat, and the stationary positioned seat includes The fixed locating stud set towards the activity orientation seat, the end of the fixed locating stud have and camshaft one end to be positioned End the frustum that matches of taper hole；The activity orientation seat include can the vertically flexible telescoping mechanism in direction, it is described There is loose pin that is relative with the fixed locating stud and being coaxially disposed, the end of the loose pin on telescoping mechanism The frustum that taper hole with the end with the camshaft other end to be positioned matches；The loose pin can be with described flexible Vertically direction is moved for mechanism, and the maximum spacing between the fixed locating stud is more than the length of camshaft to be positioned, and most Small spacing can be by camshaft fixed clamp to be positioned；Be additionally provided with limit base on the riser, the limit base with it is to be positioned The positioning boss position that camshaft is clamped in camshaft when between the fixed locating stud and loose pin is corresponding, and The positioning boss of camshaft can rotate and abut on the top surface of the positioning seat towards the limit base.

Using said structure, the fixed locating stud and loose pin being oppositely arranged by vertically direction can be easily Camshaft is fixed, above-mentioned fixed form takes full advantage of existing taper hole in cam axial end, so as to reduce outside camshaft The smart car or precision grinding process of disc, reduce processing cost.Further, since the taper hole at camshaft both ends is coaxially disposed, and it is fixed Alignment pin and loose pin are also to be coaxially disposed, and using above-mentioned positioning method, can avoid the morpheme of the periphery of camshaft Error on Machining Accuracy has an impact, and is advantageous to improve machining accuracy.

As optimization, the activity orientation seat also includes the location key seat being arranged on the telescopic end of the telescoping mechanism, There is the stepped hole that vertically sets on the location key seat, the stepped hole include close to the fixed locating stud set compared with Reduced diameter section and the larger-diameter section set away from the fixed locating stud；

The middle part of the loose pin has the radially prominent positive stop lug boss annular in shape formed, described spacing The diameter of boss is less than the diameter of the larger-diameter section of the stepped hole, the diameter of section where the frustum of the loose pin with The diameter of the diameter segment of the stepped hole is consistent；The frustum of the loose pin is along towards the fixed locating stud Direction passes the diameter segment of the stepped hole；

Side where the location key seat is located at the larger-diameter section of the stepped hole is fixedly installed cover plate, the lid There is the through hole that passes of one end for being available for the loose pin away from frustum on plate, the positive stop lug boss of the loose pin with The elasticity of the diameter segment for the frustum of the loose pin to be ejected to the stepped hole is provided between the cover plate Part.

Using above-mentioned setting, by telescoping mechanism location key seat can be driven to be moved to makes loose pin and stationary positioned The distance between pin is less than cam shaft length, and after loose pin compression elastic piece, distance therebetween is more than camshaft The position of length.So, can be by one end alignment activity alignment pin of camshaft and with force compresses bullet when clamping camshaft Property part, make the other end be aligned fixed locating stud, camshaft is tentatively clamped between using the elastic force of elastic component, Ran Houcao Make telescoping mechanism movement, be finally completed the positioning clamping of camshaft.Using said apparatus, only a worker is needed to complete cam The preliminary clamping of axle, be advantageous to simplify operating procedure, save human cost, there is provided operating efficiency.

As optimization, the elastic component is the helical spring being sleeved on the loose pin, the two of the helical spring End is connected on the positive stop lug boss and the cover plate respectively.

In preliminary clamp cam axle, camshaft can be rotated along the direction away from the limit base, drive activity is determined Position pin makes helical spring produce torsional deflection.So, when camshaft is tentatively clamped between fixed locating stud and loose pin When, under the twisting resistance effect of spring, positioning boss can be made to be close on the top surface of limit base.So that the positioning of camshaft It is more accurate.

As optimization, the stationary positioned seat is located at the upper end of the riser, and the activity orientation seat is located at the riser Lower end.

So, during clamping camshaft, downward compression elastic piece is easier to exert a force.Operation is easier.

As optimization, mistake proofing block is additionally provided with the riser, the mistake proofing block is located at the fixed locating stud and activity On the axis direction of alignment pin, the mistake proofing block has rectangular channel away from one end of the riser, and the width of the rectangular channel is 23.2~23.5mm, and the rectangular channel is corresponding with a diameter of periphery positions of φ 23.2 on the camshaft after clamping, makes The periphery passes through the rectangular channel.

Using the setting of above-mentioned mistake proofing block, the camshaft of other models of the installation of mistake can be avoided, is advantageous to improve production The qualification rate of product.

As optimization, the telescoping mechanism is the cylinder that vertically direction is set.

In summary, the Form and position error that the utility model has the periphery that can avoid camshaft produces to machining accuracy Influence, be advantageous to improve machining accuracy, simplify manufacturing procedure, be advantageous to save production cost, it is simple in construction, it is easy to operate etc. excellent Point.

Brief description of the drawings

Fig. 1 is the structural representation of camshaft to be positioned.

Fig. 2 be Fig. 1 in A to structural representation.

Fig. 3 is the cross section structure diagram of E-E in Fig. 1.

Fig. 4 is the structural representation of the utility model embodiment.

Fig. 5 is Fig. 4 cross section structure diagram.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

During specific implementation：As shown in Figure 4 and Figure 5, a kind of cam axial end boring grab, including bottom plate 1, the bottom plate 1 On the riser 2 being vertically arranged is installed, one end of the riser 2 is provided with stationary positioned seat 3, and the other end is provided with activity orientation Seat 4, the stationary positioned seat 3 include the fixed locating stud 31 set towards the activity orientation seat 4, the fixed locating stud 31 End there is the frustum to match with the taper hole of the end of camshaft one end to be positioned；The activity orientation seat 4 includes can The vertically flexible telescoping mechanism 41 in direction, have on the telescoping mechanism 41 relative with the fixed locating stud 31 and coaxial set The loose pin 42 put, the end of the loose pin 42 have the taper hole phase with the end of the camshaft other end to be positioned The frustum of matching；The loose pin 42 can vertically direction be moved with the telescoping mechanism 41, with the stationary positioned Maximum spacing between pin 31 is more than the length of camshaft to be positioned, and minimum spacing can be by camshaft geometrical clamp to be positioned Hold；Limit base 5 is additionally provided with the riser 2, the limit base 5 is clamped in the fixed locating stud 31 with camshaft to be positioned The positioning boss position of camshaft is corresponding when between loose pin 42, and the positioning boss of camshaft being capable of direction The limit base 5 rotates and abutted on the top surface of the positioning seat 5.

During implementation, the activity orientation seat 4 also includes the location key seat being arranged on the telescopic end of the telescoping mechanism 41 43, there is the stepped hole vertically set, the stepped hole is included close to the fixed locating stud 31 on the location key seat 43 The diameter segment of setting and the larger-diameter section set away from the fixed locating stud 31；

The middle part of the loose pin 42 has the radially prominent positive stop lug boss annular in shape formed, the limit The diameter of position boss is less than the diameter of the larger-diameter section of the stepped hole, and section is straight where the frustum of the loose pin 42 Footpath is consistent with the diameter of the diameter segment of the stepped hole；Determine towards the fixation on the frustum edge of the loose pin 42 The direction of position pin 31 passes the diameter segment of the stepped hole；

Side where the location key seat 43 is located at the larger-diameter section of the stepped hole is fixedly installed cover plate, described There is the through hole that passes of one end for being available for the loose pin 42 away from frustum on cover plate, the loose pin 42 it is spacing The small diameter for the frustum of the loose pin 42 to be ejected to the stepped hole is provided between boss and the cover plate The elastic component of section.

During implementation, the elastic component is the helical spring being sleeved on the loose pin 42, the two of the helical spring End is connected on the positive stop lug boss and the cover plate respectively.

During implementation, the stationary positioned seat 3 is located at the upper end of the riser 2, and the activity orientation seat 4 is located at the riser 2 lower end.

During implementation, mistake proofing block 6 is additionally provided with the riser 2, the mistake proofing block 6 is located at the fixed locating stud 31 and lived On the axis direction of dynamic alignment pin 42, the mistake proofing block 6 has rectangular channel away from one end of the riser 2, the rectangular channel Width is 23.2~23.5mm, and the rectangular channel is relative with a diameter of periphery positions of φ 23.2 on the camshaft after clamping Should, the periphery is passed through the rectangular channel.

During implementation, the telescoping mechanism 41 is the cylinder that vertically direction is set.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not using the utility model as limitation All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims

1. a kind of cam axial end boring grab, it is characterised in that including bottom plate (1), be provided with the bottom plate (1) and set vertically The riser (2) put, one end of the riser (2) are provided with stationary positioned seat (3), and the other end is provided with activity orientation seat (4), institute State the fixed locating stud (31) that stationary positioned seat (3) includes setting towards the activity orientation seat (4), the fixed locating stud (31) end has the frustum that the taper hole with the end of camshaft one end to be positioned matches；Activity orientation seat (4) bag Include can the vertically flexible telescoping mechanism (41) in direction, have on the telescoping mechanism (41) and the fixed locating stud (31) Loose pin (42) that is relative and being coaxially disposed, the end of the loose pin (42) is with another with camshaft to be positioned The frustum that the taper hole of the end at end matches；The loose pin (42) can be with the telescoping mechanism (41) vertically direction Mobile, the maximum spacing between the fixed locating stud (31) is more than the length of camshaft to be positioned, and minimum spacing can By camshaft fixed clamp to be positioned；Be additionally provided with limit base (5) on the riser (2), the limit base (5) with it is to be positioned convex Wheel shaft is clamped in the positioning boss position phase of camshaft when between the fixed locating stud (31) and loose pin (42) It is corresponding, and the positioning boss of camshaft can rotate towards the limit base (5) and abut in the top surface of the positioning seat (5) On.

2. cam axial end boring grab as claimed in claim 1, it is characterised in that the activity orientation seat (4) also includes The location key seat (43) being arranged on the telescopic end of the telescoping mechanism (41), have on the location key seat (43) and vertically set The stepped hole put, the stepped hole include the diameter segment set close to the fixed locating stud (31) and away from described solid Determine the larger-diameter section of alignment pin (31) setting；

The middle part of the loose pin (42) has the radially prominent positive stop lug boss annular in shape formed, described spacing The diameter of boss is less than the diameter of the larger-diameter section of the stepped hole, and section is straight where the frustum of the loose pin (42) Footpath is consistent with the diameter of the diameter segment of the stepped hole；The frustum of the loose pin (42) is along towards the fixation The direction of alignment pin (31) passes the diameter segment of the stepped hole；

Side where the location key seat (43) is located at the larger-diameter section of the stepped hole is fixedly installed cover plate, the lid There is the through hole for being available for the loose pin (42) to be passed away from one end of frustum, the limit of the loose pin (42) on plate It is provided between position boss and the cover plate for the frustum of the loose pin (42) to be ejected into the smaller of the stepped hole The elastic component of diameter segment.

3. cam axial end boring grab as claimed in claim 2, it is characterised in that the elastic component is to be sleeved on the work Helical spring on dynamic alignment pin (42), the both ends of the helical spring are connected on the positive stop lug boss and the cover plate respectively.

4. cam axial end boring grab as claimed in claim 2, it is characterised in that the stationary positioned seat (3) is located at institute The upper end of riser (2) is stated, the activity orientation seat (4) is located at the lower end of the riser (2).

5. cam axial end boring grab as claimed in claim 1, it is characterised in that be additionally provided with the riser (2) anti- Wrong block (6), the mistake proofing block (6) is located on the axis direction of the fixed locating stud (31) and loose pin (42), described Mistake proofing block (6) has rectangular channel away from one end of the riser (2), and the width of the rectangular channel is 23.2~23.5mm, and should Rectangular channel is corresponding with a diameter of periphery positions of φ 23.2 on the camshaft after clamping, the periphery is passed through the square Shape groove.

6. cam axial end boring grab as claimed in claim 1, it is characterised in that the telescoping mechanism (41) is vertically The cylinder that direction is set.