Transverse air hole position degree detection gauge
By designing a transverse pore position detection gauges for valve body products, and using centering positioning and directional positioning techniques, the problems of long inspection time and high cost in the prior art are solved, fast and accurate inspection is achieved, and the inspection frequency and product quality are improved.
Patent Information
- Application Number
- CN202421688133.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-17
AI Technical Summary
When detecting the position of the transverse pore of the valve body product, the detection time is long and the detection cost is high, resulting in slow detection speed and difficult to achieve online detection and high frequency detection.
A transverse pore position detection gauges are designed to achieve rapid detection of transverse pore position through centering and orientation positioning, using the coordination of the eccentric shaft and the measuring column.
It achieves rapid and accurate testing, reduces inspection costs, increases inspection frequency, can promptly detect unqualified products, and completely control them in the factory.
Smart Images
Figure CN222799863U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing inspection tools, in particular to a transverse air hole position detection gauge. Background Art
[0002] The position error of the horizontal air hole on the valve body product will cause the oil hole to be blocked and cause scrapping, which will cause great losses to the manufacturer and even the customer. At present, the detection in the processing process can only be carried out by three-coordinate detection, but its detection capacity is limited, and the detection time is long and the detection cost is high, resulting in slow detection speed. Therefore, if the detection frequency is reduced, it will easily cause batch scrapping. How to solve this problem and how to realize online detection have been bothering manufacturers and need to be solved urgently. Utility Model Content
[0003] The utility model mainly solves the technical problems of the prior art such as long detection time and high detection cost, and proposes a horizontal air hole position detection gauge specially used for valve body products. It is centered and positioned with the key center hole of the valve body product, and the directional positioning with the valve body product is realized by the positioning pin. The measuring column is at the lower part of this gauge, and most of the measuring column is in the guide hole inside the gauge. In addition, a driving groove is provided in the middle part of the measuring column. The eccentric shaft is the driving component of this gauge. The lower end of the eccentric shaft is provided with a driving head. The center of the driving head and the center of the eccentric shaft body are eccentric. The driving head and the driving groove of the measuring column are clearance-matched and can move inside. When the eccentric shaft is manually rotated, the driving head moves in the driving groove of the measuring column. Due to the eccentricity, the measuring column will be driven to move in the guide hole of the horizontal air hole position detection gauge, thereby realizing the detection of the horizontal air hole position of the valve body product by the measuring column. When the measuring head on the measuring column can enter the horizontal air hole as a whole, its position is judged to be qualified, otherwise it is judged to be unqualified. The use of this horizontal air hole position detection gauge is simple to operate and fast to detect, which relieves the pressure of three-coordinate detection. It not only realizes online detection, but also greatly increases the detection frequency. It can not only find unqualified products in time, but also completely control unqualified products in the factory, making manufacturers and customers more assured and trustworthy. Such a detection scheme can be applied to most similar occasions, can be widely used, and can fundamentally solve the above-mentioned problems.
[0004] The technical solution of the utility model is implemented as follows: in the detection gauge, the positioning seat is the main body, which plays the role of centering and locating the surface and carrying other parts. The middle outer cylindrical surface and its upper large end surface are in contact with the key center hole of the valve body product and the large end surface of the valve body product for positioning. In addition, the cooperation between the drive head and the measuring column drive groove, the cooperation between the eccentric shaft and the internal center hole of the positioning seat, and the cooperation between the positioning pin and the directional holes around the positioning seat are all of precision level. In addition, the positioning pin passes through the oil hole on the positioning seat and the end face of the valve body product that is connected to the transverse air hole for positioning, thereby realizing the directional positioning of the detection gauge and the valve body product. The above centering and directional positioning all provide guarantees for the accurate detection of this detection gauge.
[0005] The eccentric shaft and the measuring column are the specific parts for testing. The eccentric shaft is set in the center hole of the positioning seat. The eccentric shaft is provided with an outer annular groove. The limit screw passes through the center hole of the positioning seat and is inserted into the outer annular groove of the eccentric shaft. This prevents the eccentric shaft from moving in the axial direction, thereby limiting it. A driving head is set at the lower end of the eccentric shaft. The center distance between the driving head and the center of the eccentric shaft body is set to 2mm to 4mm. The larger the eccentric distance, the larger the stroke of the driven measuring column. There is a circular mark on the upper end face of the large diameter end of the eccentric shaft. When the circular mark is closest to the positioning pin, the driving head is at the outermost position. When the mark is farthest from the positioning pin, the driving head is at the innermost position. During testing, the position of the measuring column probe can be judged by visually observing the position of the circular mark, which is very intuitive and convenient.
[0006] All parts of this inspection gauge are made of carbide steel, which has excellent wear resistance and high hardness, meeting the requirements of long-term repeated use without losing its inspection accuracy, providing a guarantee for accurate inspection in production. The center hole, drive slot, directional hole of the locating seat, and the outer circle of the eccentric shaft, the outer circle of the measuring column, and the outer circle of the locating pin are all of precision level in dimensional accuracy and form and position tolerance. Only with such accuracy can accurate inspection be achieved.
[0007] The utility model provides a transverse air hole position detection gauge, comprising: a positioning seat and a positioning pin;
[0008] A horizontal guide hole is arranged at the lower end of the positioning seat; a vertical center hole is arranged in the middle of the positioning seat; the guide hole is connected with the center hole; a measuring column is slidably arranged in the guide hole; a measuring head is arranged at the end of the measuring column; a circumferential driving groove is arranged in the middle of the measuring column;
[0009] An eccentric shaft is arranged in the center hole; a driving head is arranged at the lower end of the eccentric shaft; the driving head is matched with the driving groove; a circular mark is arranged on the upper surface of the eccentric shaft;
[0010] The positioning seat comprises a large diameter end and a small diameter end; a plurality of directional holes are circumferentially arranged on the large diameter end; and the positioning pin can be inserted into the directional hole.
[0011] Furthermore, a transverse limiting hole is arranged on the side surface of the large diameter end, and a limiting screw is arranged in the limiting hole.
[0012] Furthermore, the diameter of the upper end of the eccentric shaft is larger than the diameter of the lower end; the upper end of the eccentric shaft can be clamped on the upper end surface of the positioning seat, and a circular mark is set on the upper surface of the eccentric shaft.
[0013] Furthermore, an outer annular groove is provided at an upper position of the outer wall of the eccentric shaft; and the cylindrical end of the limit screw extends into the outer annular groove.
[0014] Furthermore, a guide head is provided at the lower end of the positioning pin.
[0015] Furthermore, an outer circular surface is arranged in the middle of the positioning seat.
[0016] Furthermore, the positioning seat and the positioning pin are both made of hard alloy steel.
[0017] Furthermore, the drive head is not coaxial with the eccentric shaft.
[0018] Compared with the prior art, the horizontal air hole position detection gauge provided by the utility model has the following advantages:
[0019] 1. The utility model is easy to operate and has fast detection, which improves the speed of manual detection and reduces the difficulty of detection. It not only realizes online detection, but also greatly increases the detection frequency, and can detect unqualified products in time.
[0020] 2. The detection gauge of the utility model is accurate, which increases the accuracy of detection and improves the accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is an overall schematic diagram of the utility model detection gauge detection valve body product.
[0022] Figure 2 It is a structural schematic diagram of the detection gauge of the utility model.
[0023] Figure 3 It is a cross-sectional schematic diagram of the utility model detection gauge.
[0024] Figure 4 It is the front view of the valve body product of the utility model.
[0025] Figure numerals: 1. measuring column; 2. guide hole; 3. driving groove; 4. center hole; 5. eccentric shaft; 6. outer annular groove; 7. limit hole; 8. driving head; 9. limit screw; 10. cylindrical end; 11. circular mark; 12. first transverse hole; 13. measuring head; 14. outer cylindrical surface; 15. key center hole; 16. large end face; 17. large end face of valve body product; 18. directional hole; 19. first oil hole; 20. positioning pin; 21. second oil hole; 22. second transverse hole. DETAILED DESCRIPTION
[0026] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the sake of ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of the contents.
[0027] like Figure 2-3 As shown, a transverse air hole position detection gauge provided by an embodiment of the utility model includes: a positioning seat and a positioning pin 20; the positioning seat includes a large diameter end and a small diameter end; an outer cylindrical surface 14 is arranged between the large diameter end and the small diameter end, and the outer cylindrical surface 14 is located in the middle of the positioning seat.
[0028] A horizontal guide hole 2 is provided at the lower end of the positioning seat; a vertical center hole 4 is provided in the middle of the positioning seat; the guide hole 2 and the center hole 4 are connected; a measuring column 1 is slidably provided in the guide hole 2; a measuring head 13 is provided at the end of the measuring column 1; a circumferential driving groove 3 is provided in the middle of the measuring column 1;
[0029] An eccentric shaft 5 is arranged in the center hole 4; a driving head 8 is arranged at the lower end of the eccentric shaft 5; the driving head 8 is not coaxial with the eccentric shaft 5; the driving head 8 cooperates with the driving slot 3, and the end of the driving head 8 extends into the driving slot 3, and the driving head 8 is driven to rotate by rotating the eccentric shaft 5, thereby driving the measuring column 1 to move left and right; a circular mark 11 is arranged on the upper surface of the eccentric shaft 5;
[0030] A plurality of directional holes 18 are circumferentially arranged on the large diameter end; the positioning pin 20 can be inserted into the directional hole 18, and the lower end of the positioning pin 20 passes through the directional hole 18; a guide head is arranged at the lower end of the positioning pin 20; the guide head can cooperate with each oil hole of the workpiece.
[0031] A transverse limiting hole 7 is arranged on the side surface of the large diameter end. The position of the limiting hole 7 does not interfere with the directional hole 18 . A limiting screw 9 is arranged in the limiting hole 7 .
[0032] The diameter of the upper end of the eccentric shaft 5 is larger than the diameter of the lower end; the upper end of the eccentric shaft 5 can be clamped on the upper end surface of the positioning seat, and a circular mark 11 is provided on the upper surface of the eccentric shaft 5.
[0033] An outer annular groove 6 is arranged at the upper position of the outer wall of the eccentric shaft 5; the cylindrical end 10 of the limit screw 9 extends into the outer annular groove 6, and the cylindrical end of the limit screw 9 passes through the center hole of the positioning seat and is inserted into the outer annular groove 6 of the eccentric shaft, which prevents the eccentric shaft 5 from moving in the axial direction, thereby limiting the eccentric shaft 5.
[0034] The positioning seat and the positioning pin are both made of hard alloy steel material, which has excellent wear resistance, high hardness and other characteristics, meeting the requirements of long-term repeated use without losing its detection accuracy, providing a guarantee for accurate detection in production.
[0035] Working principle of the utility model: first, put the measuring column 1 into the guide hole 2 of the positioning seat, let the driving groove 3 of the measuring column 1 be approximately at the center of the center hole 4 of the positioning seat, then install the eccentric shaft 5 into the center hole 4 of the positioning seat, let the outer annular groove 6 of the eccentric shaft correspond to the limiting hole 7 of the positioning seat, and the driving head 8 at the end of the eccentric shaft extends into the driving groove 3 of the measuring column. When it cannot be extended, just rotate the eccentric shaft 5 and move the measuring column 1 appropriately. Finally, screw the limiting screw 9 into the limiting hole 7, let its cylindrical end 10 enter the outer annular groove 6 of the eccentric shaft, and lock the limiting screw 9. Manually rotate the eccentric shaft 5, visually observe the position of the circular mark 11, and let the measuring column 1 move to the inner side of the guide hole 2, that is, the measuring column 1 moves to the left until it reaches the innermost side. At this point, the installation of this detection gauge is completed.
[0036] There are multiple transverse holes inside the valve body product that need to be inspected. For example, first inspect the first transverse hole 12, and align the probe 13 on the measuring column 1 of this inspection gauge with the first transverse hole 12, and install it into the valve body product. Pay attention to the outer cylindrical surface 14 of the positioning seat corresponding to the key center hole 15 of the valve body product, and the large end surface 16 of the large diameter end of the positioning seat corresponding to the large end surface 17 of the valve body product until they are completely fitted. Slightly turn the inspection gauge to make the directional hole of the positioning seat correspond to the oil hole of the valve body product, align them visually, and then pass the directional hole 18 through the directional hole 18 and insert it into the first oil hole 19 that communicates with the first transverse hole 12. Since there is a guide head at the end of the locating pin 20, even if the directional hole 18 and the first oil hole 19 are slightly misaligned, they can be automatically corrected under the action of the guide head, and finally the directional positioning of the inspection gauge and the valve body product is completed. Next, the position of the first transverse hole 12 of the valve body product can be inspected.
[0037] Manually rotate the eccentric shaft 5, visually observe the position of the circular mark 11, and rotate it in the direction of the positioning pin 20. During this process, the probe 13 of the measuring column will gradually approach the first transverse hole 12 of the valve body product. When the first transverse hole is qualified, the probe 13 will enter the first transverse hole 12 until the probe 13 moves to the outermost position. On the contrary, when the first transverse hole is unqualified, the probe 13 cannot enter the first transverse hole 12, or only enters a part of it. At this point, the detection of the first transverse hole 12 is completed. Pull out the positioning pin 20, rotate the detection gauge, insert the positioning pin into the second oil hole 21 of the valve body product, and detect the second transverse hole 22. The specific steps thereafter are the same as above. Finally, the detection of all transverse holes is completed. Only when all the detections are qualified can the transverse hole detection of this valve body product be determined to be qualified. Otherwise, if any one of the transverse holes fails the detection, the valve body product is determined to be unqualified.
[0038] When testing the next valve body product, repeat the above steps.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that modifying the technical solutions recorded in the aforementioned embodiments, or replacing part or all of the technical features therein by equivalents, does not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A transverse air hole position detection gauge, characterized in that: include: A positioning seat and a positioning pin (20); A transverse guide hole (2) is provided at the lower end of the positioning seat; a vertical center hole (4) is provided in the middle of the positioning seat; a measuring column (1) is slidably arranged in the guide hole (2); a measuring head (13) is provided at the end of the measuring column (1); a circumferential driving groove (3) is provided in the middle of the measuring column (1); An eccentric shaft (5) is arranged in the center hole (4); a driving head (8) is arranged at the lower end of the eccentric shaft (5); the driving head (8) cooperates with the driving groove (3); a circular mark (11) is arranged on the upper surface of the eccentric shaft (5); The positioning seat comprises a large diameter end and a small diameter end; a plurality of directional holes (18) are circumferentially arranged on the large diameter end; and the positioning pin (20) can be inserted into the directional hole (18).
2. The horizontal air hole position detection gauge according to claim 1 is characterized in that: A transverse limiting hole (7) is arranged on the side surface of the large diameter end, and a limiting screw (9) is arranged in the limiting hole (7).
3. The transverse air hole position detection gauge according to claim 1 is characterized in that: The diameter of the upper end of the eccentric shaft (5) is larger than the diameter of the lower end; the upper end of the eccentric shaft (5) can be clamped on the upper end surface of the positioning seat; and a circular mark (11) is provided on the upper surface of the eccentric shaft (5).
4. The transverse air hole position detection gauge according to claim 2 is characterized in that: An outer annular groove (6) is provided at an upper position of the outer wall of the eccentric shaft (5); and the cylindrical end (10) of the limit screw (9) extends into the outer annular groove (6).
5. The transverse air hole position detection gauge according to claim 1 is characterized in that: A guide head is arranged at the lower end of the positioning pin (20).
6. The horizontal air hole position detection gauge according to claim 1 is characterized in that: An outer circular surface (14) is arranged in the middle of the positioning seat.
7. The transverse air hole position detection gauge according to claim 1 is characterized in that: The positioning seat and the positioning pin are both made of hard alloy steel.
8. The horizontal air hole position detection gauge according to claim 1 is characterized in that: The driving head (8) is not coaxial with the eccentric shaft (5).