CN210718983U - Piston pin hole perpendicularity gauge - Google Patents
Piston pin hole perpendicularity gauge Download PDFInfo
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- CN210718983U CN210718983U CN201921622245.2U CN201921622245U CN210718983U CN 210718983 U CN210718983 U CN 210718983U CN 201921622245 U CN201921622245 U CN 201921622245U CN 210718983 U CN210718983 U CN 210718983U
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- pin hole
- piston pin
- piston
- measuring
- horizontal guide
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Abstract
The utility model discloses a piston pin hole hangs down straightness and examines utensil, including the bottom plate, but be provided with horizontal migration's positioning seat on the bottom plate, be provided with the reference column that is used for the pinhole of fixed piston on the bottom plate, be provided with the support portion of fixed measuring portion on the positioning seat, the measuring head of measuring portion is used for contacting with the outer terminal surface of pinhole, and when the positioning seat drove measuring head horizontal migration, the measuring head changed the reading in order to change the measuring portion along with the height of the outer terminal surface of pinhole. The detection process is convenient, rapid and efficient, the detection efficiency is greatly improved, the on-line detection of the verticality of the piston pin hole can be realized, batch waste products in the machining process are avoided, the labor intensity and the operation difficulty of workers are greatly reduced, and meanwhile, the detection precision is higher.
Description
Technical Field
The utility model relates to a straightness detection field that hangs down, more specifically say, relate to a piston pin hole hangs down straightness and examines utensil.
Background
The piston is one of the key spare parts of internal-combustion engine, and the straightness that hangs down of piston pin hole is related to the cooperation and the atress condition of piston pin hole and connecting rod, and when the straightness that hangs down of piston pin hole is out of tolerance, the assembly between piston pin and connecting rod on the one hand is not convenient for, and on the other hand, when the piston moved in the cylinder jacket, can make pinhole and connecting rod atress uneven, lead to the piston aggravation wearing and tearing. Therefore, in actual production, the phenomenon of out-of-tolerance of the perpendicularity of the pin hole can occur due to various reasons such as processing equipment and the like, and the perpendicularity of the pin hole needs to be detected on line in real time in order to ensure the product quality and avoid the occurrence of batch waste products. However, at present, three coordinates are adopted for detecting most of the perpendicularity of the steel piston pin hole, on one hand, the cost of the three-coordinate detection tool is high, the equipment has certain requirements on the field environment, the temperature and the humidity, the requirement of online detection cannot be met, on the other hand, three-coordinate operation is inconvenient, the requirement on the skill level of a user is high, a large amount of training needs to be carried out on operators, the detection efficiency is low, the field operators cannot obtain detection results at the first time, and once waste products are generated, the batch size is large and the repair cannot be carried out.
In summary, how to provide a piston pin hole perpendicularity gauge with simple operation and high detection efficiency is a problem to be solved urgently by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a piston pin hole hangs down straightness and examines utensil, the testing process is convenient, swift, high-efficient, can realize the straightness's that hangs down on-line measuring of piston pin hole, has avoided appearing batch waste product in the course of working to greatly reduced workman's intensity of labour and the operation degree of difficulty, it is higher to detect the precision simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a piston pin hole straightness examines utensil that hangs down, includes the bottom plate, but be provided with horizontal migration's positioning seat on the bottom plate, be provided with the reference column that is used for the pinhole of fixed piston on the bottom plate, be provided with the support portion of fixed measuring part on the positioning seat, the measuring head of measuring part is used for contacting with the outer terminal surface of pinhole, works as the positioning seat drives when the measuring head horizontal migration, the measuring head is flexible along with the height change of the outer terminal surface of pinhole in order to change the reading of measuring part.
Preferably, the bottom plate is provided with a fixed seat, the fixed seat is provided with at least one movable horizontal guide rod, the top end of the horizontal guide rod is provided with a push plate which is used for abutting against the side wall of the piston, the horizontal guide rod is sleeved with an elastic part, and two ends of the elastic part are respectively connected with the fixed seat and the push plate.
Preferably, the number of the horizontal guide rods is two, and the two horizontal guide rods are arranged in parallel side by side.
Preferably, the fixing seat is provided with an opening for the horizontal guide rod to pass through, and one end of the horizontal guide rod, which is far away from the push plate, is provided with a push rod head which is convenient for a user to push.
Preferably, the elastic member is a compression spring.
Preferably, the bracket part comprises a vertical rod body connected with the positioning seat and a horizontal fixing rod which is connected with the vertical rod body, can move up and down along the vertical rod body and can be fixed, and the measuring part is fixed on the horizontal fixing rod.
Preferably, the measuring part is a dial indicator, and the dial indicator comprises a gauge head part for displaying the reading and the measuring head connected with the gauge head part.
Preferably, the fixing seat is a square base, and a connecting plate connected with the bottom plate through a bolt is arranged at the bottom of the square base.
The utility model provides a piston pin hole straightness that hangs down examines utensil, including the bottom plate, but be provided with horizontal migration's positioning seat on the bottom plate, be provided with the reference column that is used for the pinhole of fixed piston on the bottom plate, be provided with the support portion of fixed measuring portion on the positioning seat, the measuring head of measuring portion is used for contacting with the outer terminal surface of pinhole, and when the positioning seat drove measuring head horizontal migration, the measuring head changed the reading flexible in order to change the measuring portion along with the height of the outer terminal surface of pinhole.
During detection, a piston with a processed pin hole is fixed on the positioning seat through the positioning column, the positioning seat is moved under the action of external force, a measuring head of the measuring part is pressed on the outer end face of the pin hole of the piston in a proper amount, then the positioning seat is horizontally moved back and forth to drive the measuring head to move back and forth on the outer end face, the measuring head of the measuring part is guaranteed to be in full contact with the outer end face of the pin hole in the moving process, the maximum value and the minimum value of the reading of the measuring part are recorded, the measuring head is in contact with different positions of the outer end face in the moving process, the heights of the outer end faces of different positions relative to the pin hole are different, and the difference value between the maximum value and the. The detection process is convenient, rapid and efficient, the detection efficiency is greatly improved, the on-line detection of the verticality of the piston pin hole can be realized, batch waste products are avoided in the machining process, the labor intensity and the operation difficulty of workers are greatly reduced, and the detection precision is high.
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 pin hole hangs down straightness and examines structural schematic diagram of utensil.
In fig. 1:
the device comprises a base plate 1, a fixed seat 2, a horizontal guide rod 3, a compression spring 4, a push plate 5, a dial indicator 6, a piston 7, a support part 8, a positioning seat 9 and a pin rod 10.
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 a piston pin hole hangs down straightness and examines utensil, the testing process is convenient, swift, high-efficient, can realize the straightness's that hangs down on-line measuring of piston pin hole, has avoided appearing batch waste product in the course of working to greatly reduced workman's intensity of labour and the operation degree of difficulty, it is higher to detect the precision simultaneously.
Please refer to fig. 1, fig. 1 is a schematic structural diagram of the piston pin hole verticality checking fixture provided by the present invention.
The utility model provides a piston pin hole hangs down straightness and examines utensil, including bottom plate 1, but be provided with horizontal migration's positioning seat 9 on the bottom plate 1, be provided with the reference column that is used for fixed piston 7's pinhole on the bottom plate 1, be provided with the support portion 8 of fixed measuring portion on the positioning seat 9, the measuring head of measuring portion is used for contacting with the outer terminal surface of pinhole, and when positioning seat 9 drove measuring head horizontal migration, the measuring head changed the reading in order to change the measuring portion along with the height of the outer terminal surface of pinhole.
Wherein, the bottom plate 1 is a carrier for arranging the positioning seat 9, the bracket part 8 and other components, and is generally a square plate, and the positioning seat 9 can horizontally move on the bottom plate 1, specifically, a slide rail can be arranged on the bottom plate 1, so that the positioning seat 9 can move along the slide rail, and also can realize the horizontal movement of the positioning seat 9 by arranging matched gear racks on the bottom plate 1 and the positioning seat 9, as long as the structural form capable of realizing the horizontal movement of the positioning seat 9 can be applied to the technical scheme provided by the utility model, for example, the positioning seat 9 is driven by a motor to move, the bottom plate 1 is provided with a positioning column for fixing the pin hole of the piston 7, the size and shape of the positioning column need to be matched with the size of the pin hole of the piston 7, so as to ensure the stability of the fixation of the piston 7, the piston 7 is generally a steel piston, the, the support part 8 is used for fixing the measuring part, so that a measuring head of the measuring part can be in contact with the outer end face above the pin hole, the measuring head is telescopic and can be telescopic up and down along with the height change of the outer end face above the pin hole, and the reading of the measuring part is changed.
During detection, a piston 7 with a processed pin hole is fixed on a bottom plate 1 through a positioning column, the positioning seat 9 is moved under the action of external force, a measuring head of the measuring part is pressed on the outer end face of the pin hole in a proper amount, then the positioning seat 9 is horizontally moved back and forth to drive the measuring head to move back and forth on the outer end face, the measuring head of the measuring part is guaranteed to be in full contact with the outer end face of the pin hole in the moving process, the maximum value and the minimum value of the reading of the measuring part are recorded, the measuring head is in contact with different positions of the outer end face in the moving process, the outer end faces of different positions are different in height relative to the pin hole, and the difference value of the maximum value and the minimum value. The detection process is convenient, rapid and efficient, the detection efficiency is greatly improved, the on-line detection of the verticality of the piston pin hole can be realized, batch waste products are avoided in the machining process, the labor intensity and the operation difficulty of workers are greatly reduced, and the detection precision is high.
Because there is certain clearance between pinhole and the round pin 10, the piston probably appears rocking in the testing process, in order to further improve the stability of piston 7 in the testing process, in this embodiment, be provided with fixing base 2 on the bottom plate 1, be provided with at least one mobilizable horizontal guide 3 on the fixing base 2, be provided with on the top of horizontal guide 3 and be used for supporting in the push pedal 5 with the lateral wall of piston 7 mutually, suit elastic component on the horizontal guide 3, and fixing base 2 and push pedal 5 are connected respectively to the both ends of elastic component.
It can be understood that, after placing piston 7, the elastic component is in a compressed state, push plate 5 keeps in close contact with the lateral wall of piston 7 all the time under the effect of the elastic restoring force of the elastic component, and it is ensured that piston 7 does not move relative to pin rod 10, and push plate 5 can adopt a square plate, a circular plate or an arc plate matched with the lateral wall of piston 7, preferably, the number of horizontal guide rods 3 is two, and two horizontal guide rods 3 are arranged in parallel side by side. Correspondingly, can be that two horizontal guide 3 together connect same push pedal 5, guarantee the stability when push pedal 5 removes, also can make two horizontal guide 3 connect a push pedal 5 respectively, as long as can guarantee the structural style of the stability of the removal in-process of piston 7 all applicable in the technical scheme that the utility model provides an.
In order to realize the movement of the horizontal guide rod 3, in the present embodiment, the fixing base 2 is provided with an opening for the horizontal guide rod 3 to pass through, and one end of the horizontal guide rod 3 away from the push plate 5 is provided with a push rod head convenient for a user to push.
Wherein, horizontal guide arm 3 can follow the trompil and remove, and change the length that horizontal guide arm 3 stretches out the trompil promptly according to the size position of piston 7, and is provided with the putter head in the one end that horizontal guide arm 3 kept away from push pedal 5, can convenience of customers adjust the position of push pedal 5, and the putter head generally is spherical head, convenience of customers' gripping, of course, also can adopt other shapes, for example ring shape.
Preferably, the elastic member is a compression spring 4. Compression spring 4 (pressure spring) is the helical spring who bears to pressure, and the material cross-section that it used is mostly circular, also has rectangle and stranded steel entangle to coil, and the spring is generally the equidistant, and compression spring 4's shape has: cylindrical, conical, convex and concave, and a small amount of non-circular, etc., there is a certain clearance between the coils of the compression spring 4, and the spring contracts and deforms when subjected to an external load, storing deformation energy. Of course, the elastic member may be a Z-shaped elastic piece.
In a specific embodiment of the bracket portion 8, the bracket portion 8 includes a vertical rod connected to the positioning seat 9 and a horizontal fixing rod connected to the vertical rod, movable up and down along the vertical rod and fixable, and the measuring portion is fixed to the horizontal fixing rod.
Wherein, the vertical body of rod can adopt cylinder or square column, sets up its aim at for the measuring part has certain height, and the measuring head can contact with the outer terminal surface at pinhole top, and horizontal fixing rod can follow the vertical body of rod and reciprocate, can adjust effort between the outer terminal surface at measuring head and pinhole top, and is preferred, and horizontal fixing rod sets up to horizontal migration to the contact position of adjustment measuring head and outer terminal surface before measuring.
In one embodiment of the measuring part, the measuring part is a dial indicator 6, the dial indicator 6 comprising a header for displaying a reading and a measuring head connected to the header.
Wherein, the dial indicator 6 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 6 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 6 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 6 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 measuring unit may employ a measuring tool such as a vernier caliper or a micrometer.
In a specific embodiment of the fixing base 2, the fixing base 2 is a square base, and a connecting plate connected with the bottom plate 1 through a bolt is arranged at the bottom of the square base.
Wherein, square base and bottom plate 1 pass through bolted connection, easy dismounting, and preferred, between bottom plate 1 and the round pin stick 10, between horizontal guide rod 3 and the push pedal 5, between support portion 8 and percentage table 6, all can be fixed through bolted connection between positioning seat 9 and the support portion 8.
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 pin hole straightness that hangs down examines utensil and has carried out detailed introduction. 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 (8)
1. The piston pin hole verticality detection tool is characterized by comprising a base plate (1), wherein a positioning seat (9) capable of moving horizontally is arranged on the base plate (1), a positioning column used for fixing a pin hole of a piston (7) is arranged on the base plate (1), a support part (8) used for fixing a measurement part is arranged on the positioning seat (9), a measurement head of the measurement part is used for being in contact with the outer end face of the pin hole, and when the positioning seat (9) drives the measurement head to move horizontally, the measurement head stretches and retracts along with the height change of the outer end face of the pin hole so as to change the reading of the measurement part.
2. The piston pin hole verticality detection tool according to claim 1, wherein the bottom plate (1) is provided with a fixed seat (2), the fixed seat (2) is provided with at least one movable horizontal guide rod (3), the top end of the horizontal guide rod (3) is provided with a push plate (5) which is used for abutting against the side wall of the piston (7), the horizontal guide rod (3) is sleeved with an elastic piece, and two ends of the elastic piece are respectively connected with the fixed seat (2) and the push plate (5).
3. The piston pin hole verticality testing fixture according to claim 2, wherein the number of the horizontal guide rods (3) is two, and the two horizontal guide rods (3) are arranged in parallel side by side.
4. The piston pin hole verticality detection tool according to claim 3, wherein the fixing seat (2) is provided with an opening for the horizontal guide rod (3) to pass through, and one end of the horizontal guide rod (3) far away from the push plate (5) is provided with a push rod head convenient for a user to push.
5. The piston pin hole perpendicularity gauge according to claim 4, characterized in that the elastic member is a compression spring (4).
6. The piston pin hole verticality checking fixture according to any one of claims 1 to 5, wherein the support portion (8) comprises a vertical rod connected to the positioning seat (9) and a horizontal fixing rod connected to the vertical rod, capable of moving up and down along the vertical rod and capable of being fixed, and the measuring portion is fixed on the horizontal fixing rod.
7. The piston pin hole perpendicularity gauge according to claim 6, characterized in that the measuring portion is a dial indicator (6), and the dial indicator (6) includes a gauge head portion for displaying the reading and the measuring head connected to the gauge head portion.
8. The piston pin hole verticality detection tool according to claim 4, wherein the fixing seat (2) is a square base, and a connecting plate connected with the bottom plate (1) through a bolt is arranged at the bottom of the square base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622245.2U CN210718983U (en) | 2019-09-26 | 2019-09-26 | Piston pin hole perpendicularity gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622245.2U CN210718983U (en) | 2019-09-26 | 2019-09-26 | Piston pin hole perpendicularity gauge |
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| Publication Number | Publication Date |
|---|---|
| CN210718983U true CN210718983U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921622245.2U Active CN210718983U (en) | 2019-09-26 | 2019-09-26 | Piston pin hole perpendicularity gauge |
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| CN (1) | CN210718983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654594A (en) * | 2021-08-30 | 2021-11-16 | 青岛默森制造技术有限公司 | Special on-line measuring machine of piston |
-
2019
- 2019-09-26 CN CN201921622245.2U patent/CN210718983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654594A (en) * | 2021-08-30 | 2021-11-16 | 青岛默森制造技术有限公司 | Special on-line measuring machine of piston |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Lingqiang Inventor after: Li Jiaolong Inventor after: Zhang Chuanzhen Inventor after: Liu Yahui Inventor after: Tang Jian Inventor after: Song Penghu Inventor after: Liu Yicun Inventor after: Wang Li Inventor after: Zhang Jian Inventor after: Lu Haohui Inventor before: Yang Lingqiang Inventor before: Liu Yahui Inventor before: Tang Jian Inventor before: Zhang Jiajia |
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| CB03 | Change of inventor or designer information |