CN201702556U - Cylinder cover valve guide pipe press mounting tool - Google Patents

Abstract

The utility model discloses a cylinder cover valve guide pipe press mounting tool, which is used for pressing a valve guide pipe into a corresponding bottom hole of a cylinder cover and comprises a pressing plate, a pressing head, a guiding rod and a base. The base is used for supporting the cylinder cover, the guiding rod is mounted on the base, the pressing plate sleeved on the guiding rod can slide up and down along the guiding rod, the pressing head is mounted at the bottom of the pressing plate, and a steel wire tensioning mechanism used for preventing the valve guide pipe from falling off under the action of gravity is arranged at the connecting position of the pressing head with the valve guide pipe. The press mounting tool further includes a cylinder cover positioning mechanism, and precise positioning of the cylinder cover relatively to the valve guide cover can be realized by the aid of the positioning mechanism. The cylinder cover valve guide pipe press mounting tool has the advantages of simple press mounting process, convenient operation and capability of effectively reducing labor intensity of workers.

Description

The cylinder head valve guide crimp tool

FIELD

[0001] The present invention relates to a press-fit tool, and particularly relates to an engine cylinder head valve guide crimp tool.

Background technique

[0002] The diesel engine cylinder head valve guide and the cylinder head is connected to a respective blind hole metal interference fit, requires the use of special equipment, tooling for crimping. Used in prior art crimp tool by floating platen head through the catheter positioning coarse manner, after press fitting the two conduits to manually remove the catheter head, and then the next set of conduits reload pressure conduit head, in order to complete the catheter press-hold a workpiece. Press-fitted in this manner and the valve guide, positioning accuracy is not high, and each end of the press-fitting a conduit to be removably indenter, high labor intensity.

SUMMARY

[0003] The present invention is to overcome the above defects in the prior art, to provide high positioning accuracy and is one kind of press-fitting the press-fit the valve guide easily crimp tool.

[0004] The cylinder head according to the present invention the valve guide press-fit tool for press-fitting the cylinder head valve guide in a respective blind hole, comprising a platen, ram, and a base guide bar, for supporting the base of the cylinder head, a guide bar mounted on the base, the platen and slidably fitted over the guide rod along a lower guide rod head mounted on the bottom platen, and the ram valve guide is provided for preventing the connection of the valve guide falling under gravity steel sheets tight organization.

[0005] wherein the wire tensioning mechanism specifically is: the ram disposed on opposite sides of the recess, a recess for receiving a U-shaped resilient wire, when the ram is inserted into the valve guide, valve guide elastically pressed outwards forming wire a frictional force in the vertical direction in order to avoid press-fit before the valve guide from coming off the indenter.

[0006] wherein the crimp tool positioning mechanism further includes a cylinder head, a cylinder head positioning mechanism comprises a guide block, a predetermined seat position, the predetermined position and a predetermined position stopper pin circle; guide block extends transversely along the base, a cylinder head into bits during a guide; pretargeting seat provided in the cylinder head into the starting position and one side connected to the fastening base, the predetermined position predetermined bits connected through the stopper seat pivot pin circle with a predetermined position, the predetermined position the pivot point of attachment is on the stopper near the side of the base.

[0007] wherein the positioning mechanism further comprises a cylinder head positioning block, the positioning block is located on the base and extends into place along the direction of the cylinder head, the cylinder head in place during the positioning block is always lower end surface of the sliding surface bonded to the cylinder head.

[0008] wherein a cylinder head positioning mechanism further includes a positioning pin and the positioning pin elevating mechanism; positioning pin mounted on the base, and the positioning pin comprises a round positioning pin Ling, position, spacing cylinders respectively corresponding to the position of the prepared hole cover, spacing adapted; positioning pin elevating mechanism comprises at corresponding positions of the latch lever and laterally disposed ramp were opened, the latch rod in the latch rod is provided on the handle, the cylindrical positioning pin and the positioning pin Ling also defines ramp, the positioning pin ramp phase ramp with the latch lever attached to a suitable ligand; when the cylinder head into place, so that the transverse pushing the handle latch lever moved horizontally, so that the positioning pin inserted into the corresponding rise in the blind hole in a cylinder head to achieve precise positioning of the cylinder head.

[0009] wherein the lower platen press fitting stroke stopper is provided for avoiding excessive pressure lower platen cause damage to the cylinder head.

[0010] wherein the ram is detachably connected by screws to the platen; guide rod is connected detachably to the base by screws.

[0011] Compared with the prior art, the present invention is positioned such that the press-fit tool cylinder head and valve guide is more accurate; simple press-fit operation, can effectively improve the efficiency of the operator. BRIEF DESCRIPTION

[0012] FIG. 1 is a front view of the present invention the valve guide crimp tool;

[0013] FIG. 2 is a left side view of the valve of the present invention conduit and crimp tool;

[0014] FIG. 3 is a plan view of the present invention the valve guide crimp tool.

[0015] The reference numerals in conjunction with the following drawings in which numerals:

[0016] 1- platen, the guide rods 2-, 3- stopper press-fit stroke, head fastening screw 5-, 6- wire tensioning mechanism 7_ head, handle 8-, 9- latch lever, ramp latch lever 91-, 10- positioning block, the guide block 11-, 12- base guide bar fastening screw 13-, 14- predetermined bit round pins, the predetermined bit holder 15, 16 a predetermined stop position, 17- positioning a round pin, round pin 171- positioning ramp, Ling positioning pin 18, 181- Ling positioning pin ramp.

detailed description

[0017] DRAWINGS The present invention according to a specific embodiment described in detail, it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0018] As shown in FIGS. 1 to the present invention a cylinder head 3 of the catheter valve crimp tool for the valve guide (not shown) into the cylinder head (not shown) corresponding to the blind hole including platen 1, the indenter 7, the guide rod 2 and the cylinder head for supporting the base 12, the guide bar 2 through the guide bar fastening screw 13 mounted on the base 12, the platen 1 set movable along the guide bar 2 lower sliding guide rod, the screw head 7 mounted on the bottom platen 5 by a fastening ram, the ram can be easily replacement 7. The ram valve guide 7 and the connecting cable tensioner provided means 6, in which the tensioning means is provided on opposite sides of the ram recess 7 (FIG. 2), the recess for receiving a U-shaped resilient wire (not shown), when the ram valve guide 7 is inserted, the elastic compression of the valve guide wire outwardly vertical direction is formed a friction valve guide to avoid falling off under gravity. In order to avoid an excessive pressure lower platen cause damage to the cylinder head, the platen 1 is provided a lower stopper 3 press fitting stroke.

[0019] As shown, for the precise positioning during press-fitting the cylinder head of the ram, the press-fit tool positioning mechanism further includes a cylinder head, a cylinder head positioning mechanism comprises a guide block 11, the predetermined bit blocks 1 15 , the stopper 16 and the predetermined bits of the predetermined bit of the round pin 14; 10 further comprising a positioning pin and the positioning pin lift mechanism positioning block. The guide block 11 is provided in the base 12 extending laterally, a cylinder head into place during orientation. Pretargeting seat 15 provided in the cylinder head into the starting position and is connected to the fastening side of the base 12, the stopper 16 is connected to a predetermined position by a predetermined bit circular pivot pin 14 and the predetermined bits seat 15, near the pivot point of attachment is the predetermined stop position base 12 - side. Positioning block 10 is disposed on the base and extending into place along the direction of the cylinder head, the cylinder head in place during the positioning block is always lower end surface of the sliding surface bonded to the cylinder head. The positioning pin 12 mounted on the base, including the positioning pin 17 and the positioning round diamond pin 18, the position, spacing cylinders respectively corresponding to the position of the prepared hole cap adapted to the pitch, so as to achieve the positioning insert. The positioning pin lift mechanism comprises a latch lever disposed transversely of 9 and a handle provided on the latch lever 9 8 orientation round pin 17 and the positioning chabazite are defined in the inclined surface on the pin 18 (i.e., the cylindrical positioning pin inclined surface in FIG. 1 171 and positioning Ling pin ramp 181), at corresponding positions on the latch lever 9 also defines the inclined surface (i.e., the inclined surface of the latch lever 91 in FIG. 1), the latch lever ramp inclined surface and two positioning pins 91 of respective positions with a suitable paste, when the cylinder head after into place, so that the transverse pushing the handle latch lever moves horizontally, due to the inclined surface, the positioning pin inserted into the corresponding rise in the blind hole in a cylinder head to achieve precise positioning of the cylinder head.

[0020] The following describe in detail the process of press-fitting of the cylinder head and the positioning of:

[0021] First to be press-fit into the valve guide sleeve of FIG two pressure head 27, due to the action of the wire tensioning mechanism 6, the valve catheter will not fall off; into place on the cylinder head side of the starting point, i.e., then parallel to the direction along the guide block; pre-alignment upper left side of FIG. 1, block 15, in which case the bottom surface of the cylinder head at a predetermined position presses the right end of the stopper convex portion 16, the predetermined bit left tilt stop 16 push the cylinder head, the cylinder head bottom surface 10 on the end face of the positioning block bonded slid fully into place until the cylinder head to the base 12, the stopper 16 at this time predetermined position under gravity down the left side, right side playing again the cylinder head against the retraction stop 16 predetermined bits right end projections; 8, the interaction of the inclined surface and the positioning pin of the latch lever 91 so that the inclined surface rising toward the right side two positioning pins parallel to the direction of pushing the handle 1 of FIG. , just inserted into the cylinder head corresponding to the blind hole, the precise positioning of the cylinder head, in which case the valve head pressure conduit 7 is located just directly above the cylinder head valve guide bore; finally, the press above the platen 1 under pressure vertical, perpendicular to the valve guide is pressed into the cylinder head Conduit hole, press-fit stroke stopper 3 can effectively control the height of press-fit, press-fit in place after, put on the press platen, because the frictional force between the indenter 7 and the valve guide bore is smaller than the conduit between the valve guide and case friction, does not put on the platen with the valve guide, so far, the end of the press fitting work.

[0022] The present invention is more accurate positioning crimp tool, but also greatly reduces the labor intensity of the workers.

[0023] Although the present invention a more particular embodiment disclosed, but the present invention is not limited thereto, anyone skilled in the art can think of variations shall fall within the scope of protection of the present invention.

Claims (8)

1. A cylinder head valve guide press-fit tool, valve guides pressed into the cylinder head for the respective blind hole, which is characterized in that it comprises a platen, ram, and a base guide bar, for supporting the base of the cylinder head, the said guide rod is mounted on the base, the platen and slidably fitted over the guide rod along a lower guide rod head mounted on the bottom platen, and the ram valve guide is provided for preventing the connection of the valve guide falling under gravity wire tensioning mechanism.
2. 2. The cylinder cover according to claim 1, the valve guide press fitting tool, characterized in that the wire tensioning mechanism specifically is: the ram disposed on opposite sides of the recess, a recess for receiving a U-shaped resilient wire, when the ram valve guide insert, the resilient compression of the valve guide wire outwardly forming a frictional force in the vertical direction in order to avoid press-fit before the valve guide from coming off the indenter.
3. The cylinder head 12 of the valve or conduit crimp tool as claimed in claim wherein said crimping tool further includes a cylinder head positioning mechanism, the positioning mechanism comprises a guide cylinder head block, a predetermined seat position, the predetermined stop position round pin block and predetermined bits; guide block extends transversely along the base, a cylinder head for guiding the process into place; pretargeting seat provided in the cylinder head into the starting position and fastened to the base side, a predetermined stop position bit block by the predetermined base circle pivot pin connected with a predetermined position, the pivot point of attachment is adjacent to the predetermined position on the base side of the stopper.
4. Cylinder according to claim 3, wherein said valve guide crimp tool head, wherein said positioning mechanism further includes a cylinder head positioning block, the positioning block is located on the base and extends into place along the direction of the cylinder head, the cylinder head bits during said positioning block is always lower end surface of the sliding surface bonded to the cylinder head.
5. The cylinder head according to claim catheter valve crimp tool of claim 4, wherein said positioning means further comprises a cylinder head positioning pin and the positioning pin elevating mechanism; positioning pin mounted on the base, including the positioning pin and the positioning round Link pin position, respectively, the cylinder head corresponding to the spacing of the position of the blind hole, adapted to the pitch; elevating means comprises a positioning pin disposed transversely of the latch lever and the latch lever provided on a handle, the cylindrical positioning pin and the positioning pin on the Link at respective positions are defined in the inclined surface, the latch lever also defines the inclined surface, the inclined surface with the latch lever positioning pin attached to the inclined surface with a suitable ligand; when the cylinder head into place, so that the transverse pushing the handle latch lever moved horizontally, so that the positioning pin is inserted into increased a respective blind hole in the cylinder head to achieve precise positioning of the cylinder head.
6. 6. The cylinder of claim 12 or claim crimp tool head valve guide, characterized in that the lower portion of the platen press fitting stroke stopper provided for avoiding excessive pressure lower platen cause damage to the cylinder head.
7. The cylinder of claim 12 or claim crimp tool head valve guide, wherein the ram is detachably connected by screws to the platen.
8. 8. Cover the valve guide cylinder crimp tool according to claim 1 or claim 2, wherein said guide rod is detachably connected by screws with the base.