CN111203699A - Cylinder cover conduit valve seat press and press precision adjusting method - Google Patents
Cylinder cover conduit valve seat press and press precision adjusting method Download PDFInfo
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- CN111203699A CN111203699A CN202010134098.5A CN202010134098A CN111203699A CN 111203699 A CN111203699 A CN 111203699A CN 202010134098 A CN202010134098 A CN 202010134098A CN 111203699 A CN111203699 A CN 111203699A
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- pressure head
- head
- core rod
- bottom hole
- valve seat
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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
- B23P19/10—Aligning parts to be fitted together
- B23P19/12—Alignment of parts for insertion into bores
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- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a cylinder cover conduit valve seat press and a press precision adjusting method, and relates to the technical field of engine part manufacturing. The cylinder cover conduit valve seat press comprises a core rod and a measuring meter, wherein the core rod is used for being inserted into a bottom hole of an engine cylinder cover; the measuring gauge is arranged on the pressure head and can be driven by the pressure head to translate or rotate around the central axis of the pressure head, and the measuring gauge is used for contacting the core rod to detect the coaxiality of the core rod and the pressure head, so that the coaxiality of the bottom hole and the pressure head is detected. The press precision adjusting method comprises the following steps: dotting the mandrel in the circumferential direction and the axial direction by using a measuring meter so as to measure the coaxiality of the mandrel and a pressure head; and adjusting the turning angle of the turning frame and the position of the engine cylinder cover relative to the turning frame according to the measurement result of the coaxiality until the coaxiality of the core rod and the pressure head reaches a preset range. The cylinder cover conduit valve seat press and the press precision adjusting method can reduce the production cost.
Description
Technical Field
The invention relates to the technical field of manufacturing of engine parts, in particular to a cylinder cover conduit valve seat press and a press precision adjusting method.
Background
The cylinder cover guide pipe and the valve seat on the engine cylinder cover are important parts on the cylinder cover, the guide pipe is usually pressed into a reserved guide pipe bottom hole on the top surface of the cylinder cover by a press, the valve seat is pressed into a reserved valve seat bottom hole on the bottom surface of the cylinder cover, the guide pipe bottom hole and the valve seat bottom hole are coaxial and communicated, the press-fitting precision needs to be adjusted before press-fitting to ensure the coaxiality of a pressure head and the bottom hole, and then the cylinder cover product is ensured to be qualified. However, in the actual press-fitting process, the press-fitting precision is usually adjusted by a pressure-testing mode, so that more waste products are easily produced, and the cost is high.
Disclosure of Invention
The invention aims to provide a cylinder cover conduit valve seat press and a press precision adjusting method, which can reduce the production cost.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment provides a cylinder head conduit valve seat press, which comprises a frame, a pressure head and a turnover frame, wherein the pressure head and the turnover frame are connected to the frame, the turnover frame is used for bearing and fixing an engine cylinder head, the engine cylinder head is provided with a bottom hole, the pressure head is used for pressing a conduit or a valve seat in the bottom hole, the cylinder head further comprises a core rod and a measuring meter, and the core rod is used for being inserted into the bottom hole; the measuring gauge is arranged on the pressure head and can be driven by the pressure head to translate or rotate around the central axis of the pressure head, and the measuring gauge is used for contacting the core rod to detect the coaxiality of the core rod and the pressure head, so that the coaxiality of the bottom hole and the pressure head is detected.
In an optional embodiment, the pressure head comprises an upper pressure head positioned above the turnover frame and a lower pressure head positioned below the turnover frame, the bottom hole comprises a conduit bottom hole arranged at the upper side of the engine cylinder cover and a valve seat bottom hole positioned at the lower side of the engine cylinder cover, the conduit bottom hole is coaxial with the valve seat bottom hole, the upper pressure head is used for press-fitting the conduit to the conduit bottom hole, and the lower pressure head is used for press-fitting the valve seat to the valve seat bottom hole;
the core rod is used for being inserted into the bottom hole of the guide pipe, and the measuring meter is installed on the upper pressure head and can move up and down or rotate around the central axis of the upper pressure head under the driving of the upper pressure head.
In an alternative embodiment, the core rod comprises a large diameter section and a small diameter section which are connected with each other, the small diameter section is used for being inserted into the bottom hole of the guide pipe, and the large diameter section is used for being contacted by the measuring meter.
In an alternative embodiment, the gauge is also used to contact the lower ram to detect the coaxiality of the lower ram with the upper ram.
In an alternative embodiment, the meter is fixed to the upper ram by a gimbal.
In an alternative embodiment, the universal-joint type pressure gauge further comprises a gauge stand, wherein the gauge stand is detachably connected to the upper pressure head, and the universal rod is connected to the gauge stand.
In an alternative embodiment, the measuring gauge comprises a dial gauge.
In a second aspect, an embodiment provides a method for adjusting precision of a press, which is used for the cylinder head conduit valve seat press, and includes:
dotting the mandrel in the circumferential direction and the axial direction by using a measuring meter so as to measure the coaxiality of the mandrel and a pressure head;
and adjusting the turning angle of the turning frame and the position of the engine cylinder cover relative to the turning frame according to the measurement result of the coaxiality until the coaxiality of the core rod and the pressure head reaches a preset range.
In an alternative embodiment, measuring the coaxiality of the mandrel and the ram comprises:
adjusting the position of the turnover frame to enable the central axis of the pressure head to be perpendicular to the turnover frame and used for bearing the bearing surface of the engine cylinder cover;
the measuring meter is driven by the pressure head to translate so as to hit a point in the axial direction of the core rod, so that the overturning angle of the engine cylinder cover relative to the central axis of the pressure head is measured, and the overturning of the overturning frame is adjusted according to the overturning angle until the overturning angle of the engine cylinder cover is adjusted to be within a preset range;
the measuring meter rotates around the central axis of the pressure head under the driving of the pressure head so as to strike points on the circumference of the core rod, further measure the offset of the central axis of the core rod relative to the central axis of the pressure head, and adjust the position of the engine cylinder cover relative to the turnover frame or the position of the pressure head according to the offset until the offset is within a preset range.
In an alternative embodiment, dotting the mandrel in the circumferential direction using a gauge comprises:
respectively dotting on two opposite sides of the core rod along a first preset direction to measure the offset of the core rod relative to the central axis of the pressure head in the first preset direction, and adjusting the position of the engine cylinder cover relative to the overturning frame according to the offset;
respectively dotting on two opposite sides of the core rod along a second preset direction to measure the offset of the core rod relative to the central axis of the pressure head in the second preset direction, and adjusting the position of the pressure head according to the offset; the first preset direction is perpendicular to the second preset direction.
The embodiment of the invention has the beneficial effects that:
the cylinder cover conduit valve seat press comprises a rack, a pressure head and a turnover frame, wherein the pressure head and the turnover frame are connected to the rack; the measuring gauge is arranged on the pressure head and can be driven by the pressure head to translate or rotate around the central axis of the pressure head, and the measuring gauge is used for contacting the core rod to detect the coaxiality of the core rod and the pressure head, so that the coaxiality of the bottom hole and the pressure head is detected. The method for adjusting the precision of the press is used for the valve seat press of the cylinder cover conduit, and comprises the following steps: dotting the mandrel in the circumferential direction and the axial direction by using a measuring meter so as to measure the coaxiality of the mandrel and a pressure head; and adjusting the turning angle of the turning frame and the position of the engine cylinder cover relative to the turning frame according to the measurement result of the coaxiality until the coaxiality of the core rod and the pressure head reaches a preset range. Cylinder cap pipe disk seat press is through inciting into the bottom hole with the plug, the gauge is installed in the pressure head, through utilizing the gauge to beat the point contact on the plug with the axiality between measurement plug and the bottom hole, measure the axiality between bottom hole and the pressure head promptly, and then can detect whether aim at between pressure head and the bottom hole, position for adjusting the engine cylinder cap provides reference standard, conveniently adjust the precision of pressure equipment position, compare with the mode of traditional use pressure testing mode adjustment pressure equipment precision, effectively reduce rejection rate and manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a cylinder head conduit valve seat press when a roll-over frame is not rolled over in an embodiment of the invention;
FIG. 2 is a schematic structural view of a cylinder head conduit valve seat press when the roll-over frame is rolled over in place in the embodiment of the invention;
FIG. 3 is a schematic structural view of the mandrel engaged with the cylinder head in the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a flip frame according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a mandrel in an embodiment of the present invention;
fig. 6 is a flowchart of a press precision adjustment method according to an embodiment of the present invention.
Icon: 100-cylinder cover conduit valve seat press; 110-a rack; 112-a ram; 113-upper ram; 114-a flipping frame; 115-lower ram; 116-a transition pressure shaft; 117-gauge stand; 118-an upper ram body; 119-a carrying arm; 120-a support plate; 121-a stop; 122-a guide bar; 124-positioning pins; 130-a core rod; 132-a large diameter section; 134-small diameter section; 150-a measuring meter; 152-a gimbal; 200-an engine cylinder head; 212-conduit bottom hole; 214-valve seat bottom hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, 2 and 3, the present embodiment provides a cylinder head conduit valve seat press 100, which includes a frame 110, and a pressing head 112 and a turning frame 114 connected to the frame 110. The roll-over frame 114 is used to carry and secure the engine head 200. The engine head 200 has a bottom bore to which the ram 112 is used to press fit a conduit or valve seat. The head pipe seat press 100 further includes a core rod 130 and a gauge 150, the core rod 130 being adapted to be inserted into the bottom hole. The gauge 150 is mounted to the ram 112 and is capable of translation or rotation about the central axis of the ram 112 upon actuation of the ram 112. The gauge 150 is used to contact the core rod 130 to detect the coaxiality of the core rod 130 and the ram 112, and thus the bottom hole and the ram 112.
In this embodiment, the ram 112 includes an upper ram 113 located above the flipping frame 114 and a lower ram 115 located below the flipping frame 114. Referring to fig. 3, the bottom holes include a conduit bottom hole 212 disposed on the upper side of the engine cylinder head 200 and a valve seat bottom hole 214 disposed on the lower side of the engine cylinder head 200, the conduit bottom hole 212 is coaxial with the valve seat bottom hole 214, the conduit bottom hole 212 is communicated with the valve seat bottom hole 214, the upper pressure head 113 is used for pressing the conduit to the conduit bottom hole 212, and the lower pressure head 115 is used for pressing the valve seat to the valve seat bottom hole 214. The mandrel 130 is adapted to be inserted into the conduit bottom hole 212 and the gauge 150 is mounted to the upper ram 113 and is capable of moving up and down or rotating about the central axis of the upper ram 113 under the drive of the upper ram 113.
The ram 112 herein refers to a pressing structure connected to a driving mechanism, which includes a ram body and a ram attachment capable of rotating and moving synchronously with the ram body. Specifically, the upper ram 113 includes an upper ram body 118 and a transition ram shaft 116 that is disposed externally of the upper ram body 118. The upper ram body 118 has a smaller diameter and is disposed at an inner center position of the transition ram shaft 116. The driving mechanism can drive the transition pressing shaft 116 to synchronously extend and retract up and down with the upper pressing head body 118 or rotate around the axis of the upper pressing head 113. After the upper ram 113 is moved in place in the up-down direction, the upper ram body 118 may be further extended to directly contact the pipe by the driving mechanism, thereby press-fitting the pipe. The head duct valve seat press 100 also includes a gauge stand 117, the gauge stand 117 being removably attached to the upper ram 113 to facilitate removal of the gauge 150 from the press apparatus when not in use. Specifically, the gauge stand 117 has a first mounting hole, and the gauge stand 117 is sleeved on the intermediate pressure shaft 116 through the first mounting hole. The gauge stand 117 further has a second mounting hole for mounting the measuring gauge 150. In other embodiments, the gauge stand 117 may be non-detachably connected to the upper ram 113, and only needs to be configured according to actual needs.
Referring to fig. 4, the flip frame 114 is a frame structure, and includes two L-shaped supporting arms 119 arranged at intervals and a supporting plate 120 fixed on the supporting arms 119, the two L-shaped supporting arms 119 arranged at intervals are fixed to each other, and the supporting plate 120 is fixed on the bending arm of the L-shaped supporting arm 119 to be supported by the supporting arm 119. One end of the bearing arm 119, which is far away from the support plate 120, is connected with a stopper 121, that is, the stopper 121 is suspended above the support plate 120, and the stopper 121 is used for stopping the engine cylinder head 200 to prevent the engine cylinder head 200 from falling in the overturning process. The stop 121 and the carrying arm 119 form a U-shape, the space in the middle of which is intended to receive the engine head 200. One side of the support plate 120 facing the stopper 121, that is, a bearing surface for directly bearing the engine head 200, is provided with a guide bar 122 extending along a first preset direction (shown as ab direction), two guide bars 122 are arranged at intervals along a second preset direction (shown as cd direction), the two guide bars 122 together form a positioning surface, and the two guide bars 122 directly bear the engine head 200. The second predetermined direction (shown as cd direction) is perpendicular to the first predetermined direction (shown as ab direction). The middle of the supporting plate 120 is a hollow structure. The support plate 120 is provided with positioning pins 124 at intervals in a first predetermined direction (shown as ab direction), and the positioning pins 124 can position and adjust the position of the engine head 200 in the first predetermined direction (shown as ab direction) and a second predetermined direction (shown as cd direction). The engine cylinder head 200 is fixed by the guide strips 122, the positioning pins 124 and the rest of the limiting components of the turnover frame 114.
The turning frame 114 is rotatably connected to the frame 110, and the whole turning frame 114 can rotate around an axis extending in a first preset direction (shown as ab direction) so as to adjust the placing angle of the engine cylinder head 200 fixed on the support plate 120 of the turning frame 114, so that the central axis of the conduit bottom hole 212 can be parallel to the central axis of the upper pressure head 113, that is, the hole of the conduit bottom hole 212 faces directly above, and the conduit bottom hole 212 is conveniently subjected to conduit press-fitting.
A lower ram 115 is disposed below the roll-over frame 114 for pressing a valve seat into a valve seat bottom hole 214 on the bottom side of the engine head 200. The lower ram 115 is retractable up and down and rotatable about its own axis under the drive mechanism.
Referring to fig. 5, in the present embodiment, the core rod 130 includes a large diameter section 132 and a small diameter section 134 connected to each other, the small diameter section 134 is used for inserting into the bottom hole 212 of the catheter, and the large diameter section 132 is used for contacting the meter 150. The diameter of the small diameter section 134 is smaller than that of the large diameter section 132 so as to conveniently insert the conduit bottom hole 212 with a smaller diameter, the diameter of the small diameter section 132 is larger, after the small diameter section 134 is inserted into the conduit bottom hole 212, the large diameter section 132 is positioned outside the conduit bottom hole 212, and the large diameter section is provided so as to be convenient for the contact of the measuring meter 150 with the measuring meter, particularly convenient for the contact with the circumferential direction of the mandrel 130 to be in point contact, and further convenient for the measuring meter 150 to measure the offset of the mandrel 130. In other embodiments, the mandrel 130 may be configured to have a fixed diameter rather than a variable diameter, and only need to be able to stably fit into the bottom hole 212 of the conduit and satisfy the measurement requirements of the measuring gauge 150.
In the present embodiment, the measuring gauge 150 includes a dial gauge. In other embodiments, the meter 150 further comprises a lever meter, etc., only to meet the measurement needs. In addition, the cylinder head conduit valve seat press 100 comprises a universal rod 152, the universal rod 152 is connected to the gauge stand 117, and the measuring gauge 150 is fixed on the upper pressure head 113 through the universal rod 152. Specifically, one end of the universal rod 152 is connected to the second mounting hole of the gauge stand 117, and the other end is connected to the measuring gauge 150, so that the measuring gauge 150 can be set at an appropriate position to make contact with the object to be measured and dotted before position adjustment is performed, and the adaptability of the measuring gauge 150 is improved. The term "pointing" used herein means that a measuring head of the measuring gauge 150 is in point contact with the surface of the core rod 130, the measuring head is in contact with the core rod 130, and the deviation size and the deviation direction are determined by the reading of the dial indicator and the rotation direction of the pointer, for example, if the dial indicator is pressed clockwise and loosened counterclockwise, the pointer is 0.05 clockwise when the dial indicator is touched on the first side of the object to be measured, and the pointer is 0.03 when the dial indicator is touched on the second side (the side opposite to the first side) of the object to be measured, which indicates that the pointer is deviated to the first side by 0.01. In other embodiments, the measuring gauge 150 may be connected to the upper ram 113 through other supporting frames, as long as the use requirement is satisfied.
After the mandrel 130 is inserted into the conduit bottom hole 212, the measuring gauge 150 contacts the striking point along the axial direction of the mandrel 130, so that the inclination condition of the mandrel 130 can be measured, whether the overturning frame 114 overturns in place or not can be judged according to the inclination condition of the mandrel 130, and when the overturning frame 114 overturns in place, the central axis of the conduit bottom hole 212 is parallel to the central axis of the upper ram 113.
After the turning angle of the turning frame 114 is adjusted, the position of the measuring gauge 150 relative to the upper ram 113 is fixed by the universal rod 152, and the measuring gauge is driven by the rotation of the upper ram 113 to contact the striking point of the mandrel 130 along the circumferential direction of the mandrel 130 for measurement, so that the offset of the mandrel 130 relative to the central axis of the upper ram 113 can be measured, and accordingly, the offset of the central axis of the conduit bottom hole 212 of the engine cylinder head 200 and the central axis of the upper ram 113 is determined, and corresponding adjustment is further performed, so that the central axis of the upper ram 113 and the central axis of the conduit bottom hole 212 are finally overlapped, that is, the coaxiality is adjusted to.
In addition to the upper pressure head 113 being coaxial with the conduit bottom hole 212, the valve seat bottom hole 214 being coaxial with the conduit bottom hole 212, it is also necessary to ensure that the lower pressure head 115 is coaxial with the upper pressure head 113 before press fitting for ensuring the valve seat, i.e. the central axes of the upper pressure head 113, the conduit bottom hole 212, the valve seat bottom hole 214, and the lower pressure head 115 are coincident. Therefore, in the present embodiment, the gauge 150 can also pass through the turnover frame 114 for contacting the lower ram 115 to detect the coaxiality of the lower ram 115 and the upper ram 113, and then adjust the relative positions of the lower ram 115 and the upper ram 113 according to the measurement result of the coaxiality.
It will be appreciated that in other embodiments, the gauge 150 may also be mounted to the lower ram 115 if the configuration permits, in which case the gauge 150 is capable of directly measuring the concentricity of the lower ram 115 and the valve seat bottom bore 214. At this time, the mandrel 130 may be directly lengthened to be able to simultaneously penetrate the conduit bottom hole 212 and the valve seat bottom hole 214, at this time, the mandrel 130 has exposed portions on both the upper side and the lower side of the engine head 200, and the gauge 150 may directly measure the coaxiality of the lower ram 115 and the bottom hole at the contact striking point of the lower portion of the mandrel 130.
In other embodiments, the gauge 150 may be used only to adjust the concentricity of the upper ram 113 and the bottom hole, and the position detection of the lower ram 115 may be determined by pressure testing or other detection means.
In addition, referring to fig. 6, an embodiment of the invention provides a method for adjusting the precision of a press, which uses the cylinder head conduit and valve seat press 100, and includes the following steps:
s1: the mandrel 130 is dotted in the circumferential and axial directions using the gauge 150 to measure the coaxiality of the mandrel 130 with the ram 112.
Wherein measuring the coaxiality of the mandrel 130 and the ram 112 comprises:
the position of the roll-over frame 114 is first adjusted so that the center axis of the ram 112 is perpendicular to the bearing surface of the roll-over frame 114 for bearing the engine head 200. This step is performed before the turn frame 114 is turned over, and it can be determined whether the bearing surface of the turn frame 114 is perpendicular to the upper ram 113 by means of dotting measurement of the gauge 150 along the extending direction of the guide strip 122. The upper surface of the supporting plate 120 is a bearing surface.
The flip angle of the flip frame 114 is then adjusted. After the bearing surface of the turning frame 114 is ensured to be vertical to the central axis of the upper pressing head 113, the turning frame 114 is turned for a certain angle. The measuring gauge 150 is driven by the ram 112 to translate to hit a point in the axial direction of the mandrel 130, can measure the inclination degree of the mandrel 130, further measure the overturning angle of the engine cylinder cover 200 relative to the central axis of the ram 112, and adjust the overturning of the overturning frame 114 according to the overturning angle until the overturning angle of the engine cylinder cover 200 is adjusted to be within the preset range. At this time, the opening of the conduit bottom hole 212 faces directly upward.
Next, the gauge 150 is driven by the ram 112 to rotate around the central axis of the ram 112 to strike a dot in the circumferential direction of the mandrel 130, and further measures the offset of the central axis of the mandrel 130 with respect to the central axis of the ram 112, and adjusts the position of the engine head 200 with respect to the overturn frame 114 or the position of the ram 112 according to the offset until the offset is within a preset range.
S2: and adjusting the overturning angle of the overturning frame 114 and the position of the engine cylinder cover 200 relative to the overturning frame 114 according to the measurement result of the coaxiality until the coaxiality of the core rod 130 and the pressure head 112 reaches a preset range.
Since the position of the engine head 200 on the flipping frame 114 can only be adjusted in the first preset direction (shown as ab direction), and the flipping frame 114 cannot move relative to the frame 110 in the second preset direction (shown as cd direction), when the alignment position of the conduit bottom hole 212 and the upper ram 113 is further adjusted after the flipping angle of the flipping frame 114 is adjusted, it is necessary to perform the following two steps: first, the position of the engine head 200 on the inversion frame 114, that is, the position of the positioning pin 124 on the inversion frame 114, is adjusted in a first preset direction (shown as ab direction) with reference to the upper ram 113; then, the position of the upper ram 113 is adjusted in a second predetermined direction (cd direction shown) based on the position of the engine head 200, and finally the coaxiality between the conduit bottom hole 212 and the upper ram 113 is adjusted. In other embodiments, engine head 200 or ram 112 may be selectively moved as appropriate, only to enable adjustment of the concentricity.
In this embodiment, for the convenience of operation, dotting the mandrel 130 in the circumferential direction using the gauge 150 includes: dotting on two opposite sides of the mandrel 130 along a first preset direction (shown as direction ab) to measure the offset of the mandrel 130 relative to the central axis of the ram 112 in the first preset direction (shown as direction ab), and adjusting the position of the engine head 200 relative to the overturning frame 114 according to the offset; dotting on two opposite sides of the mandrel 130 along a second preset direction (shown in the figure cd direction) to measure the offset of the mandrel 130 relative to the central axis of the ram 112 in the second preset direction (shown in the figure cd direction), and adjusting the position of the ram 112 according to the offset; the first predetermined direction (shown as ab direction) is perpendicular to the second predetermined direction (shown as cd direction). That is, in the present embodiment, the dotting detection is performed by selecting only two directions in the circumferential direction, and in other embodiments, measurement may be performed by selecting a plurality of different directions in the entire circumferential direction of the mandrel 130, or the amount of displacement of the mandrel 130 from the center axis of the ram 112 may be measured.
In this embodiment, after the coaxiality of the upper pressing head 113 and the bottom hole 212 of the guide tube is adjusted, the lower pressing head 115 is only required to be subjected to dotting measurement by using the measuring gauge 150, so that the coaxiality of the lower pressing head 115 and the upper pressing head 113 can be obtained, and further, the position of the lower pressing head 115 is adjusted. Finally, the coaxiality of the four of the upper ram 113, the conduit bottom hole 212, the valve seat bottom hole 214, and the lower ram 115 can be ensured within a preset range. After the coaxiality adjustment is completed, the equipment can be normally started to carry out press mounting work. In other embodiments, the alignment of the lower ram 115 may be done without the use of the gauge 150.
In other embodiments, the above-mentioned method for adjusting the accuracy of the press can be used for measuring the coaxiality of the upper ram 113 and the bottom hole, and can also be used for measuring the coaxiality of the lower ram 115 and the bottom hole, because the gauge 150 can also be mounted on the lower ram 115 to measure the coaxiality of the bottom hole and the lower ram 115.
In summary, the working principle of the cylinder head conduit valve seat press 100 and the process of adjusting the press precision by using the cylinder head conduit valve seat press 100 in the embodiment are as follows:
first, it is determined whether the carrying surface of the turn frame 114 is perpendicular to the upper ram 113 by means of the dotting of the gauge 150 along the extending direction of the guide bar 122. The position of the turnover frame 114 is adjusted so that the central axis of the pressure head 112 is perpendicular to the bearing surface of the turnover frame 114 for bearing the engine head 200, so as to be used as a basis for next turnover.
After the bearing surface of the turning frame 114 is ensured to be perpendicular to the central axis of the upper pressure head 113, the engine cylinder head 200 is fixed on the turning frame 114, and the turning frame 114 drives the cylinder head to turn over for a certain angle. The measuring gauge 150 is driven by the upper ram 113 to translate to hit a point in the axial direction of the core rod 130, can measure the inclination degree of the core rod 130, further measure the overturning angle of the engine cylinder cover 200 relative to the central axis of the upper ram 113, and adjust the overturning of the overturning frame 114 according to the overturning angle until the overturning angle of the engine cylinder cover 200 is adjusted to be within the preset range. At this point, the opening of the conduit bottom hole 212 is facing directly up and the inversion frame 114 is inverted into position.
Next, the gauge 150 is rotated about the central axis of the upper ram 113 by the driving of the upper ram 113 to strike a dot in the circumferential direction of the mandrel 130, thereby measuring the offset amount of the central axis of the mandrel 130 with respect to the central axis of the upper ram 113. Based on this offset amount, the position of the engine head 200 on the inversion frame 114 is adjusted in the first preset direction (shown as the ab direction), that is, the position of the positioning pin 124 on the inversion frame 114 is adjusted in the first preset direction (shown as the ab direction), with the upper head 113 as a reference; the position of the upper ram 113 is then adjusted in a second predetermined direction (cd shown) based on the position of the engine head 200, thereby adjusting the concentricity of the conduit bottom hole 212 and the upper ram 113.
Finally, the lower pressure head 115 is measured by dotting with the measuring gauge 150, so that the coaxiality of the lower pressure head 115 and the upper pressure head 113 can be measured, and the position of the lower pressure head 115 can be adjusted. Finally, the coaxiality of the four of the upper ram 113, the conduit bottom hole 212, the valve seat bottom hole 214, and the lower ram 115 can be ensured within a preset range.
After the adjustment is completed, the core rod 130 is taken off, the measuring gauge 150 is moved away or disassembled, and then the normal press-fitting process is carried out, so that the press-fitting precision can be ensured.
Cylinder cap pipe disk seat press 100 is through inserting plug 130 into the bottom hole, gauge 150 is installed in pressure head 112, through utilizing gauge 150 to beat the point contact on plug 130 in order to measure the axiality between plug 130 and the bottom hole, measure the axiality between bottom hole and pressure head 112 promptly, and then can detect whether aim at between pressure head 112 and the bottom hole, for the position of adjustment engine cylinder cap 200 provides reference standard, conveniently adjust the precision of pressure equipment position, compare with the mode that traditional use pressure testing mode adjusted pressure equipment precision, can improve pressure equipment efficiency to a certain extent, and effectively reduce rejection rate and manufacturing cost.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a cylinder cap pipe disk seat press, include the frame and connect in the pressure head and the upset frame of frame, the upset frame is used for bearing and fixed engine cylinder lid, engine cylinder lid has the bottom outlet, the pressure head be used for with pipe or disk seat pressure equipment in the bottom outlet, its characterized in that:
the measuring device comprises a core rod and a measuring gauge, wherein the core rod is used for being inserted into the bottom hole; the measuring gauge is mounted on the pressure head and can be driven by the pressure head to translate or rotate around the central axis of the pressure head, and the measuring gauge is used for contacting a core rod to detect the coaxiality of the core rod and the pressure head, so that the coaxiality of the bottom hole and the pressure head is detected.
2. The cylinder head conduit valve seat press of claim 1, wherein the pressing head comprises an upper pressing head located above the roll-over frame and a lower pressing head located below the roll-over frame, the bottom hole comprises a conduit bottom hole arranged on the upper side of the engine cylinder head and a valve seat bottom hole located on the lower side of the engine cylinder head, the conduit bottom hole is coaxial with the valve seat bottom hole, the upper pressing head is used for pressing the conduit to the conduit bottom hole, and the lower pressing head is used for pressing the valve seat to the valve seat bottom hole;
the core rod is used for being inserted into the bottom hole of the guide pipe, and the measuring meter is installed on the upper pressure head and can move up and down under the driving of the upper pressure head or rotate around the central axis of the upper pressure head.
3. The cylinder head conduit valve seat press of claim 2, wherein the core rod includes a large diameter section and a small diameter section connected to each other, the small diameter section being adapted to be inserted into the conduit bottom hole, the large diameter section being adapted to be contacted by the gauge.
4. The cylinder head conduit valve seat press of claim 2, wherein the gauge is further configured to contact the lower ram to detect concentricity of the lower ram and the upper ram.
5. The cylinder head conduit valve seat press of claim 2, wherein the gauge is secured to the upper ram by a gimbal bar.
6. The cylinder head conduit valve seat press of claim 5, further comprising a gauge stand removably connected to the upper ram, the gimbal rod being connected to the gauge stand.
7. The cylinder head conduit valve seat press of claim 1, wherein the gauge comprises a dial gauge.
8. A method for adjusting the accuracy of a press for a cylinder head conduit valve seat press according to any one of claims 1 to 7, comprising:
dotting the mandrel in the circumferential direction and the axial direction by using the measuring meter so as to measure the coaxiality of the mandrel and the pressure head;
and adjusting the turning angle of the turning frame and the position of the engine cylinder cover relative to the turning frame according to the measurement result of the coaxiality until the coaxiality of the core rod and the pressure head reaches a preset range.
9. The press adjustment method of claim 8, wherein measuring the coaxiality of the mandrel and the ram comprises:
adjusting the position of the turnover frame to enable the central axis of the pressure head to be perpendicular to the bearing surface of the turnover frame for bearing the engine cylinder head;
the measuring meter is driven by the pressure head to translate so as to hit points in the axial direction of the core rod, so that the overturning angle of the engine cylinder cover relative to the central axis of the pressure head is measured, and the overturning of the overturning frame is adjusted according to the overturning angle until the overturning angle of the engine cylinder cover is adjusted to be within a preset range;
the measuring meter rotates around the central axis of the pressure head under the driving of the pressure head so as to perform dotting on the periphery of the core rod, further measure the offset of the central axis of the core rod relative to the central axis of the pressure head, and adjust the position of the engine cylinder cover relative to the turnover frame or adjust the position of the pressure head according to the offset until the offset is within a preset range.
10. The press accuracy adjustment method of claim 8, wherein dotting the mandrel in the circumferential direction using the gauge comprises:
dotting on two opposite sides of the core rod along a first preset direction respectively to measure the offset of the core rod relative to the central axis of the pressure head in the first preset direction, and adjusting the position of the engine cylinder cover relative to the overturning frame according to the offset;
respectively dotting two opposite sides of the core rod along a second preset direction to measure the offset of the core rod relative to the central axis of the pressure head in the second preset direction, and adjusting the position of the pressure head according to the offset; the first preset direction is perpendicular to the second preset direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134098.5A CN111203699B (en) | 2020-03-02 | 2020-03-02 | Cylinder cover conduit valve seat press and press precision adjusting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134098.5A CN111203699B (en) | 2020-03-02 | 2020-03-02 | Cylinder cover conduit valve seat press and press precision adjusting method |
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| Publication Number | Publication Date |
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| CN111203699A true CN111203699A (en) | 2020-05-29 |
| CN111203699B CN111203699B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010134098.5A Active CN111203699B (en) | 2020-03-02 | 2020-03-02 | Cylinder cover conduit valve seat press and press precision adjusting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338626A (en) * | 2022-08-16 | 2022-11-15 | 河海大学 | Mounting structure convenient to adjust water pump rotor axial position |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009042A (en) * | 2012-12-31 | 2013-04-03 | 长城汽车股份有限公司 | Press fitting device for guide pipe and seat retainer of engine cylinder head |
| CN203132460U (en) * | 2013-03-27 | 2013-08-14 | 山东大柴缸体缸盖股份有限公司 | Run-out testing tool for engine cylinder head valve seat |
| CN103615958A (en) * | 2013-11-06 | 2014-03-05 | 荣成锻压机床有限公司 | Method for measuring coaxiality of clutch shaft hole and crossbeam high-speed shaft hole of press machine |
| DE102013006875A1 (en) * | 2013-04-20 | 2014-10-23 | Jenoptik Industrial Metrology Germany Gmbh | Cylinder bore measurement device |
| CN107631674A (en) * | 2017-10-31 | 2018-01-26 | 广西玉柴机器股份有限公司 | A kind of coaxiality check fixture of valve seat of cylinder head hole to conduit bottom outlet |
| CN107971729A (en) * | 2017-12-25 | 2018-05-01 | 重庆颖熙科技有限公司 | A kind of press-loading device for being used to be pressed cylinder head guide pipe and seat ring |
| CN109249211A (en) * | 2018-10-30 | 2019-01-22 | 西北农林科技大学 | A kind of driving shaft and driven shaft centralising device for agricultural machinery |
| CN209857836U (en) * | 2019-01-30 | 2019-12-27 | 山东富士达汽车零件有限公司 | Utensil is examined to cylinder head disk seat hole and pipe hole axiality |
-
2020
- 2020-03-02 CN CN202010134098.5A patent/CN111203699B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009042A (en) * | 2012-12-31 | 2013-04-03 | 长城汽车股份有限公司 | Press fitting device for guide pipe and seat retainer of engine cylinder head |
| CN203132460U (en) * | 2013-03-27 | 2013-08-14 | 山东大柴缸体缸盖股份有限公司 | Run-out testing tool for engine cylinder head valve seat |
| DE102013006875A1 (en) * | 2013-04-20 | 2014-10-23 | Jenoptik Industrial Metrology Germany Gmbh | Cylinder bore measurement device |
| CN103615958A (en) * | 2013-11-06 | 2014-03-05 | 荣成锻压机床有限公司 | Method for measuring coaxiality of clutch shaft hole and crossbeam high-speed shaft hole of press machine |
| CN107631674A (en) * | 2017-10-31 | 2018-01-26 | 广西玉柴机器股份有限公司 | A kind of coaxiality check fixture of valve seat of cylinder head hole to conduit bottom outlet |
| CN107971729A (en) * | 2017-12-25 | 2018-05-01 | 重庆颖熙科技有限公司 | A kind of press-loading device for being used to be pressed cylinder head guide pipe and seat ring |
| CN109249211A (en) * | 2018-10-30 | 2019-01-22 | 西北农林科技大学 | A kind of driving shaft and driven shaft centralising device for agricultural machinery |
| CN209857836U (en) * | 2019-01-30 | 2019-12-27 | 山东富士达汽车零件有限公司 | Utensil is examined to cylinder head disk seat hole and pipe hole axiality |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338626A (en) * | 2022-08-16 | 2022-11-15 | 河海大学 | Mounting structure convenient to adjust water pump rotor axial position |
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| CN111203699B (en) | 2021-12-21 |
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