CN211452194U - Piston retainer groove is to pinhole axiality utensil of examining - Google Patents
Piston retainer groove is to pinhole axiality utensil of examining Download PDFInfo
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- CN211452194U CN211452194U CN201921109119.7U CN201921109119U CN211452194U CN 211452194 U CN211452194 U CN 211452194U CN 201921109119 U CN201921109119 U CN 201921109119U CN 211452194 U CN211452194 U CN 211452194U
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- piston
- retainer groove
- pin hole
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Abstract
The utility model discloses an utensil is examined to pinhole axiality in piston retainer groove, the loach carrying platform comprises a supporting fram, be provided with on the support frame be used for with the shaft hole accordant connection's of piston horizontal fixed column, the bottom of horizontal fixed column is provided with the fluting that is used for placing lever portion, lever portion and support frame rotatable coupling, and the one end bottom that is located lever portion in the fluting is provided with the bellying that is used for with the contact of the retainer bottom of the groove portion of piston, and the other end of lever portion contacts with the measuring head of the measuring part that sets up on the support frame, and lever portion promotes that the measuring head is flexible in order to change. The detection process is convenient, rapid and efficient to operate, the detection efficiency is greatly improved, field workers can use the detection process conveniently, batch waste products in the retainer ring groove are avoided, the labor intensity and the operation difficulty of workers are greatly reduced, the technical requirements of the workers on the operation aspect are lowered, the training cost is saved, meanwhile, the detection precision is higher, and online detection and analysis of the coaxiality of the pin hole in the retainer ring groove can be realized.
Description
Technical Field
The utility model relates to a axiality detects technical field, and more specifically says, relates to an utensil is examined to pinhole axiality in piston retainer groove.
Background
The retainer ring groove is a groove processed at the position outside the piston pin hole, the piston retainer ring is mainly used for installing, in order to prevent the piston pin from falling off in the actual production, the retainer ring groove generally has higher requirements on the coaxiality of the pin hole, if the retainer ring groove is unqualified to the coaxiality of the pin hole, the retainer ring can be led to the engine in the operation process, the piston pin falls off, safety accidents are caused, and therefore a large amount of detection is needed to be carried out on the coaxiality of the pin hole by the retainer ring groove in the production, the product quality is controlled, and batch waste products are avoided being caused. The retainer ring groove is arranged in the pin hole at a distance, the coaxiality of the retainer ring groove to the pin hole is difficult to measure, the product quality can be guaranteed only by a tool in the previous production process, the retainer ring groove is machined after the pin hole is finely bored, the expanding mandrel is used for positioning, the coaxiality of the machined piston retainer ring groove to the pin hole is qualified as long as the expanding mandrel is qualified in jumping, the machining mode is complex and tedious, in order to improve the production efficiency, the machining of the retainer ring groove is put in a semi-finish turning process after the production process is improved, at the moment, an inspection device capable of detecting the coaxiality of the retainer ring groove to the pin hole is needed, so that online detection is realized, and batch waste products are avoided.
In summary, how to provide a checking fixture for coaxiality of a piston retainer ring groove to a pin hole, which is simple to operate and high in detection efficiency, is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an utensil is examined to pinhole axiality in easy operation, the high piston retaining ring groove of detection efficiency, and the axiality of pinhole of short-term test retaining ring groove to the piston, testing process convenient operation, swift, high-efficient has improved detection efficiency greatly, and the site work personnel of being convenient for use has avoided the retaining ring groove to appear batch waste product.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an utensil is examined to pinhole axiality in piston retainer groove, includes the support frame, be provided with on the support frame be used for with the horizontal fixed column of the shaft hole accordant connection of piston, the bottom of horizontal fixed column is provided with the fluting that is used for placing lever portion, lever portion with support frame rotatable coupling, and be located in the fluting the one end bottom of lever portion is provided with the bellying that is used for with the contact of the retainer bottom of the groove portion of piston, just the other end of lever portion with set up in the measuring head contact of the measuring part on the support frame, lever portion promotes the measuring head is flexible in order to change the reading of measuring part.
Preferably, the support frame is including being used for the base that supports with the workstation contact, be provided with vertical plate body on the base, horizontal fixed column is fixed in on a side of vertical plate body, be located vertical plate body opposite side be provided with on the base and be used for fixing the stand of lever portion, just be provided with on the vertical plate body and be used for supplying the trompil that lever portion passes through.
Preferably, a horizontal plate body used for fixing the upright post is arranged at the top of the vertical plate body.
Preferably, the lever portion is liftable.
Preferably, the upright is a screw rod, the screw rod is connected with a rotating handle arranged on the horizontal plate body, a fixing support rotatably connected with the lever part is arranged on the screw rod, and when the rotating handle is rotated, the fixing support can ascend and descend along the screw rod.
Preferably, the measuring part is fixed on the fixing support, and an adjusting wrench for adjusting the position of the lever part is arranged on the fixing support, so that the protruding part is in contact with the bottom of the retainer groove of the piston.
Preferably, the screw rod is provided with a supporting block for supporting the bottom of the fixing bracket, and the supporting block can move along the screw rod and can be fixed.
Preferably, the horizontal fixing column is a pin rod connected with the vertical plate body through a bolt.
Preferably, the measuring part is a dial indicator.
Preferably, the support frame is a sheet metal part.
The utility model provides an utensil is examined to pinhole axiality in piston retainer groove, which comprises a supporting fram, be provided with on the support frame be used for with the shaft hole accordant connection's of piston horizontal fixed column, horizontal fixed column's bottom is provided with the fluting that is used for placing lever portion, lever portion and support frame rotatable coupling, and the one end bottom that is located lever portion in the fluting is provided with the bellying that is used for with the contact of the retainer bottom of the groove portion of piston, and the other end of lever portion contacts with the measuring head of the measuring part that sets up on the support frame, lever portion promotes the flexible reading in order to change the measuring part of measuring head.
When in use, firstly, the piston is fixed on the horizontal fixed column, the lever part is adjusted to ensure that the bulge part and the other end of the lever part are respectively contacted with the bottom of the retainer ring groove of the piston and the measuring head, the piston rotates 360 degrees by taking the axis of the horizontal fixed column as a rotating shaft, in the rotating process, because the heights of the bottoms of the retainer ring grooves at various positions are different, namely the distances between the bottoms of the retainer ring grooves and the axis of the horizontal fixed column are different, the bulge part moves along with the height change of the bottoms of the retainer ring grooves, and then the other end of the lever part is driven to move to drive the measuring head to stretch, the measuring part obtains a series of readings, the difference value between the maximum value and the minimum value in the readings is the coaxiality of the retainer ring groove to the horizontal fixed column, because the horizontal fixed column is matched and connected with the shaft hole of the piston, the axes of the horizontal fixed column and the shaft hole of the piston can be the same axis, the detection process is convenient, rapid and efficient to operate, greatly improves detection efficiency, is convenient for field workers to use, avoids batch waste of the retainer ring groove, greatly reduces labor intensity and operation difficulty of workers, lowers technical requirements of the workers on operation, saves training cost, is high in detection precision, and can realize online detection and analysis of coaxiality of the pin hole by the retainer ring groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is the utility model provides a piston retainer groove is to the structural schematic diagram of utensil is examined to pinhole axiality.
In fig. 1:
the device comprises a base 1, a vertical plate 2, a pin 3, a lever part 4, a first supporting block 5, a second supporting block 6, a fixing support 7, an adjusting wrench 8, a dial indicator 9, a rotating handle 10 and a piston 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide an utensil is examined to pinhole axiality in easy operation, the high piston retainer ring groove of detection efficiency, and the axiality of pinhole of short-term test retainer ring groove to the piston, testing process convenient operation, swift, high-efficient has improved detection efficiency greatly, and the site work personnel of being convenient for use has avoided the retainer ring groove to appear batch waste product.
Referring to fig. 1, fig. 1 is a schematic structural view of a piston retainer groove to pin hole coaxiality testing fixture according to the present invention.
The utility model provides an utensil is examined to pinhole axiality in piston retainer groove, which comprises a supporting fram, be provided with on the support frame be used for with piston 11's shaft hole accordant connection's horizontal fixed column, the bottom of horizontal fixed column is provided with the fluting that is used for placing lever portion 4, lever portion 4 and support frame rotatable coupling, and the one end bottom that is located lever portion 4 in the fluting is provided with the bellying that is used for with piston 11's retainer bottom of the groove portion contact, and lever portion 4's the other end and the measuring head contact of the measuring part that sets up on the support frame, lever portion 4 promotes that the measuring head is flexible in order to change the reading of measuring.
Wherein, the support frame is for being used for the horizontal fixed column of fixed stay, the support carrier of parts such as lever portion 4, concrete shape structure needs set up according to the relative position of each part, horizontal fixed column is used for passing piston 11's shaft hole, with piston 11 suit in horizontal fixed column's periphery, piston 11's shaft hole is cylindrical through-hole usually, it is corresponding, horizontal fixed column is cylindrical, and the diameter of horizontal fixed column and the internal diameter phase-match in shaft hole, general both equal, or set up the diameter of horizontal fixed column for slightly being less than the internal diameter in shaft hole, make things convenient for piston 11's installation.
Because the ring groove that keeps off of piston 11 is located the inside in shaft hole, and the bellying on lever portion 4 needs to contact with the bottom in ring groove, therefore set up the fluting that is used for placing lever portion 4 in the bottom of horizontal fixed column, process a cell body promptly on horizontal fixed column and provide the space for placing and removing of lever portion 4 partly, the fluting is generally for being greater than the rectangular shape cell body of lever portion 4 width, of course, also can set up in a flexible way in actual demand more.
It should be noted that, the lever portion 4 is rotatably connected with the supporting frame, preferably, when one end of the lever portion 4 where the protrusion is located moves upward under the action of the ring blocking groove, the other end of the lever portion 4 will move downward, the measuring head extends downward, and the reading of the measuring portion is reduced, similarly, when one end of the lever portion 4 where the protrusion is located moves downward under the action of the ring blocking groove, the other end of the lever portion 4 will move upward, the measuring head is compressed and shortened, and the reading of the measuring portion is increased, that is, by using the lever principle, the height change of the bottom of the ring blocking groove is converted into the reading change of the measuring portion,
since the protrusion needs to contact with the bottom of the retainer groove, the protrusion is usually configured as a rectangular block having a length greater than the depth of the retainer groove and a width less than the width of the retainer groove.
When in use, firstly, the piston 11 is fixed on a horizontal fixed column, the lever part 4 is adjusted to ensure that the bulge part and the other end of the lever part 4 are respectively contacted with the bottom of the retainer ring groove of the piston 11 and the measuring head, the piston 11 rotates 360 degrees by taking the axis of the horizontal fixed column as a rotating shaft, in the rotating process, because the heights of the bottoms of the retainer ring grooves at various positions are different, namely the distance between the bottom of the retainer ring groove and the axis of the horizontal fixed column is different, the bulge part moves along with the height change of the bottom of the retainer ring groove, and then the other end of the lever part 4 is driven to move to drive the measuring head to stretch, the measuring part obtains a series of readings, the difference value between the maximum value and the minimum value in the readings is the coaxiality of the retainer ring groove to the horizontal fixed column, because the horizontal fixed column is connected with the shaft hole of the piston, therefore, the coaxiality of the retainer ring groove to the horizontal fixing column is also the coaxiality of the retainer ring groove to the pin hole of the piston 11, the detection process is convenient, quick and efficient to operate, the detection efficiency is greatly improved, the use by field workers is facilitated, batch waste products of the retainer ring groove are avoided, the labor intensity and the operation difficulty of workers are greatly reduced, the technical requirements of the workers on the operation aspect are lowered, the training cost is saved, meanwhile, the detection precision is high, and the online detection and analysis of the coaxiality of the retainer ring groove to the pin hole can be realized.
In a specific embodiment about the support frame, the support frame is including being used for the base 1 with workstation contact support, is provided with vertical plate body 2 on the base 1, and on horizontal fixed column was fixed in a side of vertical plate body 2, be located and be provided with the stand that is used for fixed lever portion 4 on the base 1 of vertical plate body 2 opposite side, and be provided with the trompil that is used for supplying lever portion 4 to pass through on the vertical plate body 2.
Wherein, the base 1 can adopt the shape of rectangle or circle, etc., as long as the stability of the whole piston 11 retainer ring groove to the pin hole coaxiality checking fixture is ensured, the horizontal fixing column is fixed on the vertical plate body 2, the lever part 4 is fixed on the upright post at the other side of the vertical plate body 2, and the lever part 4 and the upright post are respectively fixed, so that the interference between the lever part 4 and the horizontal fixed post can be avoided during measurement, and is convenient for installing the piston 11, the base 1 positioned at the other side of the vertical plate body 2 is provided with an upright post for fixing the lever part 4, in particular to the upright post arranged on the base 1, and has a certain distance with the vertical plate body 2, the lever part 4 needs to pass through the opening on the vertical plate body 2 to be contacted with the piston 11 on the horizontal fixed column positioned on the side surface of the vertical plate body 2, of course, the specific structural form of the support frame is not limited to the above manner, and the user can flexibly select the support frame according to actual requirements.
In order to improve the stability of the fixing of the vertical column, in the present embodiment, a horizontal plate for fixing the vertical column is provided on the top of the vertical plate 2.
Wherein, can through-hole bolted connection between the horizontal plate body and the stand, also can set up on the horizontal plate body with stand assorted trompil, pass the trompil with the stand in order to restrict stand radial movement, can formula structure as an organic whole between vertical plate body 2 and the horizontal plate body, also can be connected through modes such as welding.
In order to detect pistons 11 of different sizes, the height of the lever portion 4 needs to be adjusted, and in the present embodiment, the lever portion 4 can be lifted. The lever portion 4 can be lifted and lowered by a cylinder, a screw mechanism, or the like. Preferably, the upright is a lead screw, the lead screw is connected with a rotating handle 10 arranged on the horizontal plate body, a fixing bracket 7 which is rotatably connected with the lever part 4 is arranged on the lead screw, and when the rotating handle 10 is rotated, the fixing bracket 7 can be lifted along the lead screw.
The screw is matched with the rotating handle 10, i.e. a common screw mechanism, which is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Since the ball screw has a small frictional resistance, the ball screw is widely used in various industrial devices and precision instruments, and a user can raise or lower the lever part 4 by rotating the turning handle 10.
On the basis of the above-described embodiment, the measuring portion is fixed to the fixing bracket 7, and the fixing bracket 7 is provided with the adjustment wrench 8 for adjusting the position of the lever portion 4 so that the projection portion comes into contact with the bottom of the retainer groove of the piston 11.
It should be noted that the adjusting wrench 8 may be a link mechanism contacting with the lever portion 4, and the adjusting wrench 8 is rotated to adjust the relative position relationship between the two ends of the lever portion 4, that is, the inclination angle of the lever portion 4, so that the lever portion 4 contacts with the measuring head and the protrusion on the lever portion 4 contacts with the bottom of the retaining ring groove, and the fixing bracket 7 may be a square plate. Or a plurality of steel pipes, since the measuring part is fixed on the fixing bracket 7, the lever part 4 needs to penetrate through the fixing bracket 7 to contact with the measuring head of the measuring part.
In order to fix the fixed support 7 after adjustment, and avoid the position from changing during measurement and affecting the measurement accuracy, in the present embodiment, the screw is provided with a support block for supporting the bottom of the fixed support 7, and the support block can move along the screw and can be fixed.
It can be understood that the supporting block can support and fix the fixing bracket 7 against the bottom of the fixing bracket 7, and since the height of the fixing bracket 7 is adjustable, the supporting block needs to be configured to be movable along the screw, and a fixable structure form, such as a sliding block penetrating through the screw, and fixed at a certain position of the screw by a fixing member such as a locking screw, preferably, the supporting block is two upper and lower, and the first supporting block 5 and the second supporting block 6 can provide a larger supporting force for the fixing bracket 7.
In one embodiment of the horizontal fixing column, the horizontal fixing column is a pin 3 that is bolted to the vertical plate 2. Pin 3 generally is cylindrical steelwork, and structural strength is higher, long service life, and is connected with vertical plate body 2 through the bolt, conveniently changes or maintains.
In one embodiment for the measuring part, the measuring part is a dial indicator 9.
Wherein, the dial indicator 9 is a meter type general length measuring tool made by utilizing a precise rack and pinion mechanism. It is generally composed of measuring head, measuring rod, shockproof spring, rack, gear, hairspring, round dial and pointer. The dial indicator 9 works on the principle that the small linear movement of the measuring rod caused by the measured dimension is amplified through gear transmission and changed into the rotation of a pointer on a dial, so that the measured dimension is read. The dial indicator 9 is a measuring instrument which changes the linear displacement of the measuring rod into the angular displacement of the pointer by utilizing the transmission of a rack gear or a lever gear. The dial indicator 9 has a simple structure, the transmission mechanism is a gear train, the overall size is small, the weight is light, the inertia of the transmission mechanism is small, the transmission ratio is large, circumferential scales can be adopted, the measurement range is large, and not only can comparative measurement be carried out, but also absolute measurement can be carried out. The method is mainly used for measuring the size, the shape, the position error and the like of the workpiece. The division value is 0.01mm, and the measuring ranges are 0-3 mm, 0-5 mm and 0-10 mm. Of course, the distance detection unit may employ a measuring tool such as a vernier caliper or a micrometer.
Preferably, the support frame is a sheet metal part. The panel beating has light in weight, intensity height, electrically conductive (can be used for the electromagnetic shield), with low costs, characteristics such as extensive volume production performance are good, and the support frame adopts the sheet metal component can effectively support parts such as fixed lever portion 4, fixed bolster 7.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a piston retainer groove has carried out detailed introduction to the utensil is examined to the pinhole axiality. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides an utensil is examined to pinhole axiality in piston retainer groove, a serial communication port, which comprises a supporting fram, be provided with on the support frame be used for with the shaft hole accordant connection's of piston (11) horizontal fixed column, the bottom of horizontal fixed column is provided with the fluting that is used for placing lever portion (4), lever portion (4) with support frame rotatable coupling, and be located in the fluting the one end bottom of lever portion (4) is provided with the bellying that is used for contacting with the retainer groove bottom of piston (11), just the other end of lever portion (4) with set up in the measuring head contact of the measuring part on the support frame, lever portion (4) promote the measuring head is flexible in order to change the reading of measuring part.
2. The piston retainer groove-to-pin hole coaxiality gauge according to claim 1, wherein the supporting frame comprises a base (1) for supporting in contact with a workbench, a vertical plate (2) is arranged on the base (1), the horizontal fixing column is fixed on one side face of the vertical plate (2), an upright column for fixing the lever portion (4) is arranged on the base (1) on the other side of the vertical plate (2), and an opening for the lever portion (4) to pass through is formed in the vertical plate (2).
3. The checking fixture for coaxiality of a piston retainer groove to a pin hole as claimed in claim 2, wherein a horizontal plate body for fixing the upright post is arranged at the top of the vertical plate body (2).
4. The piston retainer groove-to-pin hole coaxiality gauge according to claim 3, wherein the lever portion (4) is liftable.
5. The piston retainer groove-to-pin hole coaxiality inspection device according to claim 4, wherein the upright is a lead screw, the lead screw is connected with a rotating handle (10) arranged on the horizontal plate body, a fixed support (7) rotatably connected with the lever portion (4) is arranged on the lead screw, and when the rotating handle (10) is rotated, the fixed support (7) can be lifted along the lead screw.
6. The piston retainer groove to pin hole coaxiality inspection tool according to claim 5, characterized in that the measuring portion is fixed on the fixing support (7), and an adjusting wrench (8) for adjusting the position of the lever portion (4) is arranged on the fixing support (7) so that the protruding portion is in contact with the bottom of the retainer groove of the piston (11).
7. The checking fixture for coaxiality of piston retainer groove to pin hole according to claim 6, wherein a support block for supporting the bottom of the fixing bracket (7) is provided on the screw, and the support block is movable along the screw and fixable.
8. The checking fixture for coaxiality of a piston retainer groove to a pin hole as claimed in claim 7, wherein the horizontal fixing column is a pin rod (3) which is connected with the vertical plate body (2) through a bolt.
9. The checking fixture for coaxiality of a piston retainer groove to a pin hole as claimed in claim 8, wherein the measuring part is a dial indicator (9).
10. The piston retainer groove-to-pin hole coaxiality gauge according to claim 9, wherein the support frame is a sheet metal part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109119.7U CN211452194U (en) | 2019-07-15 | 2019-07-15 | Piston retainer groove is to pinhole axiality utensil of examining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109119.7U CN211452194U (en) | 2019-07-15 | 2019-07-15 | Piston retainer groove is to pinhole axiality utensil of examining |
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| Publication Number | Publication Date |
|---|---|
| CN211452194U true CN211452194U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921109119.7U Active CN211452194U (en) | 2019-07-15 | 2019-07-15 | Piston retainer groove is to pinhole axiality utensil of examining |
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| Country | Link |
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| CN (1) | CN211452194U (en) |
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