Oil outlet valve matching part conical surface sealing testing fixture
By using staggered clamping components and an alternating clamping mechanism, the problem of traditional oil outlet valve assembly sealing fixtures affecting detection accuracy is solved, achieving high-precision sealing detection without blind spots, and applicable to oil outlet valve assemblies of different sizes and models.
Patent Information
- Application Number
- CN202520567324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The clamping components of traditional oil outlet valve assembly conical seal gauges can easily affect the accuracy of seal testing, leading to the risk of false negatives and failing to accurately reflect the seal failure status.
A conical sealing gauge for an oil outlet valve assembly was designed. The first and second clamping components are staggered in the height direction. By alternately clamping different positions of the oil outlet valve assembly, combined with an electric push rod and motor drive, interference-free testing is achieved.
It effectively prevents false seals caused by clamping pressure, ensures thorough and high-precision seal testing, has a wide range of applications, and avoids damage to the workpiece surface.
Smart Images
Figure CN223815201U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil outlet valve coupling piece detection technical field more specifically, relate to a kind of oil outlet valve coupling piece conical surface sealing gauge. BACKGROUND
[0002] Oil outlet valve coupling piece is one of the core components of fuel injection system, and its conical surface sealing performance directly affects the fuel supply precision and combustion efficiency of engine. Under the condition of repeated impact of high-pressure fuel, small cracks or wear of conical surface sealing surface can lead to fuel leakage, causing power decline, emission overproof and other problems. Therefore, high-precision detection of the conical surface sealing performance of oil outlet valve coupling piece is the key link to ensure product quality, and usually needs to be tested for air tightness or hydraulic sealing by special gauge simulating actual working condition.
[0003] In the prior art, the sealing gauge for oil outlet valve coupling piece adopts a fixed clamping structure to position the workpiece. However, since the clamping part directly contacts the surface of the workpiece, the mechanical pressure applied at the clamping point may cause temporary sealing compensation effect on the local deformation of the workpiece during clamping. For example, when there is a small leakage defect on the conical surface of the workpiece, the contact pressure at the clamping point may force the leakage area to temporarily adhere, resulting in that the sealing failure state cannot be truly reflected during detection, so that the detection result of the traditional gauge has the risk of false negative, and in severe cases, it may cause the defective workpiece to flow into the assembly link, causing systematic quality hidden trouble. Therefore, there is an urgent need for a detection device that can avoid clamping interference and accurately identify conical surface sealing defects.
[0004] In view of this, we propose a kind of oil outlet valve coupling piece conical surface sealing gauge. CONTENT OF UTILITY MODEL
[0005] 1. TECHNICAL PROBLEM TO BE SOLVED
[0006] The utility model aims to provide a kind of oil outlet valve coupling piece conical surface sealing gauge, to solve the problem that the clamping part of traditional oil outlet valve coupling piece conical surface sealing gauge is easy to affect sealing detection precision as proposed in the above background technology.
[0007] 2. TECHNICAL SCHEME
[0008] The utility model provides a kind of oil outlet valve coupling cone face sealing detection tool, including detection table, fixedly connected with the rack above detection table and be set on the sealing detection component of detection table table top, the top of the rack is fixedly connected with electric push rod, the extending end of the electric push rod is fixedly connected with movable table, the movable table is slidably arranged on the rack, the first motor is fixedly connected on the movable table, the first motor is fixedly connected with the closing plate for cooperating sealing detection component to carry out sealing detection, the output end of the first motor is fixedly connected with mounting plate, the first clamping component and the second clamping component are provided on the mounting plate, the first clamping component and the second clamping component are staggered in height direction to clamp different positions of oil outlet valve coupling for improving detection accuracy.
[0009] Preferably, the first clamping component includes a second motor fixedly connected to the mounting plate and a first bidirectional screw rod rotatably connected to the output end of the second motor, the threads of the two ends of the first bidirectional screw rod are oppositely arranged, and a threaded sleeve is threadedly connected to each end of the first bidirectional screw rod, and a ball is arranged between the first bidirectional screw rod and the threaded sleeve. Two first clamping plates for clamping the oil outlet valve coupling are slidably arranged on the mounting plate, and each of the two first clamping plates is fixedly connected to a threaded sleeve on the first bidirectional screw rod.
[0010] Preferably, the second clamping component includes a third motor fixedly connected to the mounting plate and a second bidirectional screw rod rotatably connected to the output end of the third motor, the threads of the two ends of the second bidirectional screw rod are oppositely arranged, and a threaded sleeve is threadedly connected to each end of the second bidirectional screw rod, and a ball is arranged between the second bidirectional screw rod and the threaded sleeve. Two second clamping plates for clamping the oil outlet valve coupling are slidably arranged on the mounting plate, and each of the two second clamping plates is fixedly connected to a threaded sleeve on the second bidirectional screw rod. The first bidirectional screw rod and the second bidirectional screw rod are vertically arranged in the vertical projection direction and are staggered in the height direction.
[0011] Preferably, the first clamping plate and the second clamping plate are both arranged in an arc shape.
[0012] Preferably, a first slider with a T-shaped cross section is fixedly connected to the first clamping plate, a first sliding groove with a size matching that of the first slider is formed in the mounting plate, a second slider with a T-shaped cross section is fixedly connected to the second mounting plate, and a second sliding groove with a size matching that of the second slider is formed in the mounting plate. The first sliding groove and the second sliding groove are vertically arranged in the vertical projection direction.
[0013] Preferably, the first clamping plate and the second clamping plate are staggered in the height direction, and the height of the lowest point of the first clamping plate is higher than the height of the highest point of the second clamping plate.
[0014] Preferably, the first clamping plate and the second clamping plate are fixedly connected with rubber pads on the clamping surfaces.
[0015] 3. Beneficial effects
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] 1. The first clamping component and the second clamping component are arranged in a staggered manner in the height direction, so that the two clamping components clamp different positions of the oil outlet valve coupling in sequence, effectively preventing false sealing qualification caused by clamping pressure, and ensuring that there is no dead angle in sealing detection.
[0018] 2. The first clamping plate and the second clamping plate are arranged, so that the device can fix oil outlet valve couplings of different sizes and models when clamping, thereby improving the application range of the device. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a schematic view of the right side of the overall structure of the utility model;
[0020] Figure 2 is a schematic view of the bottom of the mounting plate of the utility model;
[0021] Figure 3 is a position relationship diagram of the first clamping component and the second clamping component of the utility model;
[0022] Figure 4 is a split view of the first bidirectional screw and the first clamping plate of the utility model
[0023] Explanation of reference numerals in the drawings: 1, detection table; 11, rack; 12, electric push rod; 13, movable table; 14, first motor; 141, closing plate; 15, mounting plate; 16, first clamping component; 17, second clamping component; 18, sealing detection assembly; 161, second motor; 162, first bidirectional screw; 163, screw sleeve; 164, first clamping plate; 165, first sliding block; 166, first sliding groove; 171, third motor; 172, second bidirectional screw; 173, second clamping plate; 174, second sliding block; 175, second sliding groove. DETAILED DESCRIPTION
[0024] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.
[0025] In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.
[0026] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] Please refer to Figures 1-4 , the utility model provides a technical scheme:
[0028] A kind of oil outlet valve coupling part conical surface sealing gauge, including detection table 1, fixedly connected in the top of detection table 1 rack 11 and being set on the sealing detection assembly 18 of detection table 1 table top, the top of rack 11 is fixedly connected with electric push rod 12, the extending end of electric push rod 12 is fixedly connected with movable table 13, movable table 13 is slidably arranged on rack 11, movable table 13 is fixedly connected with first motor 14, first motor 14 is fixedly connected with the closed plate 141 for cooperating sealing detection assembly 18 to carry out sealing detection, closed plate 141 can cooperate sealing detection assembly 18 to form detection space, the output end of first motor 14 is fixedly connected with mounting plate 15, first clamping part 16 and second clamping part 17 are provided on mounting plate 15, first clamping part 16 and second clamping part 17 are staggered in height direction and are used for clamping different positions of oil outlet valve coupling part to improve detection precision, movable table 13 is driven to lift by electric push rod 12, the contact pressure of closed plate 141 and detection assembly can be accurately adjusted, first motor 14 drives mounting plate 15 to rotate, so that oil outlet valve coupling part can rotate when detecting, and detection precision is further improved.
[0029] The first clamping component 16 comprises a second motor 161 fixedly connected to the mounting plate 15 and a first bidirectional screw 162 rotatably connected to the output end of the second motor 161, the threads of the two ends of the first bidirectional screw 162 are oppositely arranged, and a sleeve 163 is threadedly connected to each end of the first bidirectional screw 162, and a ball is arranged between the first bidirectional screw 162 and the sleeve 163, two first clamping plates 164 for clamping the oil outlet valve components are slidably arranged on the mounting plate 15, and the two first clamping plates 164 are fixedly connected to the two sleeves 163 on the first bidirectional screw 162, respectively, so that the synchronous symmetrical movement of the two first clamping plates 164 can be realized through the first bidirectional screw 162 cooperating with the oppositely arranged threads, and the adjustment is more convenient.
[0030] Further, the second clamping component 17 comprises a third motor 171 fixedly connected to the mounting plate 15 and a second bidirectional screw 172 rotatably connected to the output end of the third motor 171, the threads of the two ends of the second bidirectional screw 172 are oppositely arranged, and a sleeve 163 is threadedly connected to each end of the second bidirectional screw 172, and a ball is arranged between the second bidirectional screw 172 and the sleeve 163, two second clamping plates 173 for clamping the oil outlet valve components are slidably arranged on the mounting plate 15, and the two second clamping plates 173 are fixedly connected to the two sleeves 163 on the second bidirectional screw 172, respectively, the first bidirectional screw 162 and the second bidirectional screw 172 are arranged vertically in the vertical projection direction and are staggered in the height direction, and the design of the height staggering of the bidirectional screw of the second clamping component 17 and the first clamping component 16 can avoid mechanical interference of the two sets of screw transmission systems during movement, and improve the operation reliability of the device.
[0031] Secondly, the first clamping plate 164 and the second clamping plate 173 are both arranged in an arc shape, the arc-shaped clamping surface can be fitted with the outer contour of the oil outlet valve component, the unit area pressure is reduced, the fixing effect is ensured, and the workpiece surface indentation damage caused by the concentration of clamping force can be avoided.
[0032] Thirdly, the first clamping plate 164 is fixedly connected with a first sliding block 165 arranged in a T-shaped cross section, the mounting plate 15 is provided with a first sliding groove 166 matching the size of the first sliding block 165, the second mounting plate 15 is fixedly connected with a second sliding block 174 arranged in a T-shaped cross section, and the mounting plate 15 is provided with a second sliding groove 175 matching the size of the second sliding block 174, the first sliding groove 166 and the second sliding groove 175 are arranged vertically in the vertical projection direction, the cooperation of the T-shaped sliding block and the sliding groove ensures the sliding accuracy, prevents the clamping plate from warping or deviating when pressure is applied through cross-section interlocking, limits the clamping track in the vertical sliding groove direction, and ensures that the clamping center is always aligned with the detection area.
[0033] In the specific implementation, the first bidirectional screw 162 is connected with the first slider 165 through the screw sleeve 163 to drive the two first clamping plates 164, and the second bidirectional screw 172 is connected with the second slider 174 through the screw sleeve 163 to drive the two second clamping plates 173.
[0034] Specifically, the first clamping plate 164 and the second clamping plate 173 are arranged in a staggered manner in the height direction, and the height of the lowest point of the first clamping plate 164 is higher than the height of the highest point of the second clamping plate 173, so that the working areas of the two sets of clamping plates are isolated by the forced height difference, and the detection accuracy is ensured.
[0035] In addition, the clamping surfaces of the first clamping plate 164 and the second clamping plate 173 are fixedly connected with rubber pads, and in the implementation, the rubber pads can provide elastic buffering to ensure the clamping stability and avoid scratches on the surface of the workpiece caused by direct contact of the metal clamping plate.
[0036] It should be noted that the sealing detection assembly 18 involved in the utility model is prior art, which is communicated with the sealing plate 141 through the air pressure pipeline and detects the leakage amount by using the differential pressure sensor, and the person skilled in the art can realize it without further description, and the content protected by the utility model does not involve the improvement of the internal structure and method of the sealing detection assembly 18.
[0037] Working principle: in the detection process, the first clamping part 16 and the second clamping part 17 work alternately to realize non-interference detection, in the initial state, the second motor 161 drives the first bidirectional screw 162 to rotate, drives the two first clamping plates 164 to move along the T-shaped sliding groove in the opposite direction, clamps the upper non-detection area of the oil valve pair, at this time, the second clamping part 17 is in the loosened state, avoiding shielding the lower detection area, after the sealing detection assembly 18 completes the detection of the upper conical surface, the second clamping part 17 is started, the third motor 171 drives the second bidirectional screw 172 to move in the vertical direction, the second clamping plate 173 clamps the lower part of the workpiece, and at the same time, the first clamping plate 164 is loosened synchronously, through the alternation of the two sets of clamping parts, the clamping and release are ensured, so that the detection process is only forced at any moment, and the influence of the clamping pressure on the sealing detection area is completely eliminated, the electric push rod 12 cooperates with the first motor 14 to drive the sealing plate 141 to press down and rotate the workpiece, so that the sealing detection assembly 18 performs segmented non-dead-angle detection on the conical surface, the alternating clamping mechanism is combined with the rotary scanning, and the double protection of clamping stability and detection accuracy is realized.
[0038] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A conical sealing gauge for an oil outlet valve assembly, comprising a testing platform (1), a frame (11) fixedly connected above the testing platform (1), and a sealing testing assembly (18) disposed on the surface of the testing platform (1), characterized in that: An electric push rod (12) is fixedly connected to the top of the frame (11). A movable platform (13) is fixedly connected to the extended end of the electric push rod (12). The movable platform (13) is slidably mounted on the frame (11). A first motor (14) is fixedly connected to the movable platform (13). A sealing plate (141) for sealing detection in conjunction with the sealing detection assembly (18) is fixedly connected to the first motor (14). A mounting plate (15) is fixedly connected to the output end of the first motor (14). A first clamping component (16) and a second clamping component (17) are provided on the mounting plate (15). The first clamping component (16) and the second clamping component (17) are staggered in the height direction to clamp the oil outlet valve assembly at different positions to improve the detection accuracy.
2. The conical sealing gauge for an oil outlet valve assembly according to claim 1, characterized in that: The first clamping component (16) includes a second motor (161) fixedly connected to the mounting plate (15) and a first bidirectional screw (162) rotatably connected to the output end of the second motor (161). The threads at both ends of the first bidirectional screw (162) are arranged in opposite directions, and both ends of the first bidirectional screw (162) are threadedly connected to a threaded sleeve (163). A ball is provided between the first bidirectional screw (162) and the threaded sleeve (163). Two first clamping plates (164) for clamping the oil outlet valve assembly are slidably arranged on the mounting plate (15). The two first clamping plates (164) are fixedly connected to the two threaded sleeves (163) on the first bidirectional screw (162).
3. The conical sealing gauge for an oil outlet valve assembly according to claim 2, characterized in that: The second clamping component (17) includes a third motor (171) fixedly connected to the mounting plate (15) and a second bidirectional screw (172) rotatably connected to the output end of the third motor (171). The threads at both ends of the second bidirectional screw (172) are reversed, and both ends of the second bidirectional screw (172) are threadedly connected to a threaded sleeve (163). A ball is provided between the second bidirectional screw (172) and the threaded sleeve (163). Two second clamping plates (173) for clamping the oil outlet valve assembly are slidably arranged on the mounting plate (15). The two second clamping plates (173) are fixedly connected to the two threaded sleeves (163) on the second bidirectional screw (172). The first bidirectional screw (162) and the second bidirectional screw (172) are vertically arranged in the vertical projection direction and staggered in the height direction.
4. The conical sealing gauge for an oil outlet valve assembly according to claim 3, characterized in that: Both the first clamping plate (164) and the second clamping plate (173) are arc-shaped.
5. The conical sealing gauge for an oil outlet valve assembly according to claim 4, characterized in that: A first slider (165) with a T-shaped cross section is fixedly connected to the first clamping plate (164). A first groove (166) adapted to the size of the first slider (165) is provided on the mounting plate (15). A second slider (174) with a T-shaped cross section is fixedly connected to the mounting plate (15). A second groove (175) adapted to the size of the second slider (174) is provided on the mounting plate (15). The first groove (166) and the second groove (175) are vertically arranged in the vertical projection direction.
6. The conical sealing gauge for an oil outlet valve assembly according to claim 5, characterized in that: The first clamping plate (164) and the second clamping plate (173) are staggered in the height direction, and the lowest point of the first clamping plate (164) is higher than the highest point of the second clamping plate (173).
7. The conical sealing gauge for an oil outlet valve assembly according to claim 6, characterized in that: Rubber pads are fixedly connected to the clamping surfaces of the first clamping plate (164) and the second clamping plate (173).