CN214277318U - Detection apparatus for oil cylinder foundry goods cylinder bottom defect - Google Patents
Detection apparatus for oil cylinder foundry goods cylinder bottom defect Download PDFInfo
- Publication number
- CN214277318U CN214277318U CN202120394385.XU CN202120394385U CN214277318U CN 214277318 U CN214277318 U CN 214277318U CN 202120394385 U CN202120394385 U CN 202120394385U CN 214277318 U CN214277318 U CN 214277318U
- Authority
- CN
- China
- Prior art keywords
- sealing seat
- cylinder
- cylinder bottom
- sealing
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a detection device for cylinder bottom defects of oil cylinder castings, which comprises a sealing seat and a water tank, wherein the sealing seat is provided with a supporting frame, and the supporting frame is structured to enable the sealing seat to be fixedly arranged in the water tank in a suspended manner; the sealing seat is fixedly arranged at the lower part of the supporting frame, the upper end surface of the sealing seat is provided with a sealing assembly surface matched with the cylinder bottom to be tested, a gas flow channel is arranged on the sealing seat, one end of the gas flow channel is connected with a gas inlet connector, and when the cylinder bottom to be tested is assembled on the sealing seat, the other end of the gas flow channel is communicated with a sealing cavity formed by the sealing seat and the cylinder bottom to be tested; the upper part of the supporting frame is provided with a pressing device for pressing the cylinder bottom to be measured and the sealing seat. The problem that the cylinder bottom of the oil cylinder with internal defects cannot detect the defects of internal air holes, looseness and the like before welding is solved, the qualified rate of finished oil cylinders is improved, the delivery cycle is shortened, and the production cost is reduced.
Description
Technical Field
The utility model relates to a detection apparatus for hydro-cylinder foundry goods cylinder bottom defect belongs to cylinder bottom part detection device technical field.
Background
The hydraulic oil cylinder is an important actuating mechanism in engineering machinery, and the main structure of the hydraulic oil cylinder comprises a cylinder barrel, a piston rod, a cylinder bottom, a cylinder cover and the like. The cylinder bottom and the cylinder cover are respectively arranged at two ends of the oil cylinder and form a closed oil cavity together with the cylinder barrel and the piston rod, the cylinder bottom generally needs to play a role in connection and sealing, and the stability and the reliability of the structural design are the key for ensuring whether the oil cylinder and the actuating mechanism can safely operate. The conventional cylinder bottom structure mainly comprises casting forming, welded assembly forming and the like. The manufacturing defects, especially the internal defects, of the structural forms can not be directly detected generally, and the defects can be found only after the oil cylinder finished products are assembled through a pressure test, so that the whole product is scrapped, the cost is increased, and the delivery delay is delayed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the detection device for the defects of the cylinder bottom of the oil cylinder casting can conveniently detect the internal defects of the oil cylinder casting before welding.
The utility model provides a technical scheme that its technical problem adopted is: the detection device for the cylinder bottom defect of the oil cylinder casting comprises a sealing seat and a water tank, wherein the sealing seat is provided with a support frame, and the support frame is constructed to enable the sealing seat to be fixedly arranged in the water tank in a suspended mode; the sealing seat is fixedly arranged at the lower part of the supporting frame, the upper end surface of the sealing seat is provided with a sealing assembly surface matched with the cylinder bottom to be tested, a gas flow channel is arranged on the sealing seat, one end of the gas flow channel is connected with a gas inlet connector, and when the cylinder bottom to be tested is assembled on the sealing seat, the other end of the gas flow channel is communicated with a sealing cavity formed by the sealing seat and the cylinder bottom to be tested; the upper part of the supporting frame is provided with a pressing device for pressing the cylinder bottom to be measured and the sealing seat.
Further, the method comprises the following steps: the pressing device comprises a pressing cylinder, and the outer end of a piston rod of the pressing cylinder is connected with a mandril.
Further, the method comprises the following steps: the pressing cylinder is installed on the installation plate, the outer end of a piston rod of the pressing cylinder is in threaded connection with the ejector rod, the connection plate is welded with the upper end of the support frame into a whole, the installation plate is connected with the connection plate through a bolt, and the ejector rod penetrates through a through hole in the upper end of the support frame and then extends downwards.
Further, the method comprises the following steps: the lower end surface of the ejector rod is provided with a V-shaped groove, and the length direction of the V-shaped groove is consistent with the radial direction of the ejector rod.
Further, the method comprises the following steps: the support frame comprises a connecting plate, a support plate and a sealing seat plate, and the support plate connects and fixes the connecting plate and the sealing seat plate; the connecting plate is positioned at the upper part of the supporting frame and is used for connecting the fixed platform; the sealing seat plate is positioned at the lower part of the supporting frame and is used for connecting the sealing seat.
Further, the method comprises the following steps: the sealing seat and the sealing seat plate are in a detachable connection structure.
Further, the method comprises the following steps: and an annular sealing groove for assembling the O-shaped sealing ring is formed on the sealing assembly surface at the upper end of the sealing seat.
Further, the method comprises the following steps: the bottom surface of the annular sealing groove is an inclined surface parallel to the sealing surface at the corresponding position on the cylinder bottom to be measured.
The utility model has the advantages that: when the device is implemented, the pressing cylinder drives the ejector rod to move downwards to press and lock the cylinder bottom to be tested, and after the air source is opened, compressed air enters through the air inlet connector to detect whether the cylinder bottom to be tested has internal defects or not. And observing whether bubbles emerge from the water tank, if so, indicating that the measured cylinder bottom has internal defects, and otherwise, indicating that the measured cylinder bottom has no defects. After the test, start and compress tightly the jar, drive the ejector pin upward movement and loosen by the cylinder bottom of being surveyed, change next cylinder bottom of being surveyed and continue to detect, be particularly suitable for measuring in batches greatly, not only improved detection efficiency, the testing result is reliable and stable moreover. The utility model provides a some have the problem that the inside defect hydro-cylinder end can't detect defect such as its inside gas pocket, loose before the welding, improved the off-the-shelf qualification rate of hydro-cylinder, shortened delivery cycle, reduced manufacturing cost, can popularize and apply in hydraulic pressure machinery technical field.
Drawings
FIG. 1 is a schematic view of the overall structure of a device for detecting defects at the bottom of an oil cylinder;
fig. 2 is a schematic view of a sealing structure of the oil cylinder bottom defect detecting device in the present invention;
fig. 3 is a schematic view of a cylinder bottom to be tested of the device for detecting defects of the cylinder bottom of the oil cylinder of the present invention;
fig. 4 is a schematic view of a seal seat of the oil cylinder bottom defect detecting device of the present invention;
FIG. 5 is an enlarged partial schematic view of the location of the annular seal groove of FIG. 4;
FIG. 6 is a schematic diagram of a mandril of the device for detecting defects at the bottom of the oil cylinder;
fig. 7 is a schematic view of a support frame of the oil cylinder bottom defect detecting device of the present invention;
the names of the corresponding parts in the drawing are as follows: the method comprises the following steps of 1-a pressing cylinder, 2-a mounting plate, 3-a connecting plate, 4-a supporting frame, 5-a mandril, 5 a-a first pressing surface, 5 b-a second pressing surface, 6-a cylinder bottom to be measured, 6 a-a welding bevel surface, 7-O-shaped sealing rings, 8-a sealing seat, 9-an air inlet joint, 10-a water tank, 11-a supporting plate, 12-a sealing seat plate and 13-an annular sealing groove.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1 to 7, the present invention includes a sealing seat 8 and a water tank 10, the sealing seat 8 is provided with a supporting frame 4, the supporting frame 4 is configured to enable the sealing seat 8 to be fixedly arranged in the water tank 10 in a suspended manner; the sealing seat 8 is fixedly arranged at the lower part of the support frame 4, the upper end surface of the sealing seat 8 is provided with a sealing assembly surface matched with the cylinder bottom 6 to be tested, a gas flow channel is arranged on the sealing seat 8, one end of the gas flow channel is connected with a gas inlet connector 9, and when the cylinder bottom 6 to be tested is assembled on the sealing seat 8, the other end of the gas flow channel is communicated with a sealing cavity formed by the sealing seat 8 and the cylinder bottom 6 to be tested; the upper part of the supporting frame 4 is provided with a pressing device for pressing the cylinder bottom 6 to be measured and the sealing seat 8. When the device is implemented, the air inlet connector 9 is connected with an air source in advance, the cylinder bottom 6 to be tested is tightly pressed and locked on the sealing seat 8 through the pressing device, the whole device is placed into the water tank 10, the air valve is opened, air enters from the air inlet connector 9 and then is subjected to air pressure test, and whether the cylinder bottom 6 to be tested has internal defects or not is detected. And (4) observing whether bubbles emerge from the water tank 10, if so, indicating that the measured cylinder bottom 6 has internal defects, and otherwise, indicating that no defects exist.
It can be understood that the pressing device only needs to meet the requirement of pressing the cylinder bottom 6 to be tested and the sealing seat 8, the automatic pressing device can be a motor screw rod, a hydraulic cylinder, a cylinder and other driving mechanisms, and the manual pressing device can be a threaded rod locking mechanism and the like. In order to improve the detection efficiency, an automatic pressing device is generally preferred. The utility model provides a preferred embodiment does: the pressing device comprises a pressing cylinder 1, and the outer end of a piston rod of the pressing cylinder 1 is connected with a mandril 5. During implementation, the pressing cylinder 1 drives the ejector rod 5 to move downwards to press and lock the cylinder bottom 6 to be tested, after the test is finished, the pressing cylinder 1 is started to drive the ejector rod 5 to move upwards to loosen the cylinder bottom 6 to be tested, and the next cylinder bottom 6 to be tested is replaced to continue the test, so that the device is particularly suitable for large-batch test. The pressing cylinder 1 in this embodiment is a hydraulic cylinder. For the mounting structure to be simple and reliable, the preferred mounting means of the pressing cylinder 1 is: the pressing cylinder 1 is installed on the installation plate 2, the outer end of a piston rod of the pressing cylinder 1 is in threaded connection with the ejector rod 5, the connection plate 3 is welded with the upper end of the support frame 4 into a whole, the installation plate 2 is connected with the connection plate 3 through a bolt, and the ejector rod 5 penetrates through a through hole in the upper end of the support frame 4 and then extends downwards.
In order to match with different compression surfaces of the cylinder bottom 6 to be measured, a V-shaped groove is formed in the lower end surface of the ejector rod 5, and the length direction of the V-shaped groove is consistent with the radial direction of the ejector rod 5. Referring to fig. 6, the first pressing surface 5a (the side wall of the V-shaped groove) may be matched with a cylindrical or other irregularly shaped surface, and the second pressing surface 5b (the lower end surface of the carrier rod 5) may be matched with a flat surface or the like.
In order to make the structure of the supporting frame 4 simple and reliable, the supporting frame 4 comprises a connecting plate 3, a supporting plate 11 and a sealing seat plate 12, wherein the supporting plate 11 connects and fixes the connecting plate 3 and the sealing seat plate 12 to ensure the integrity and rigidity of the assembly; the connecting plate 3 is positioned at the upper part of the support frame 4 and is used for connecting the fixed platform; the sealing seat plate 12 is located at the lower part of the support frame 4 and is used for connecting the sealing seat 8.
In order to be matched with different cylinder bottoms 6 to be tested, the sealing seat 8 and the sealing seat plate 12 are in a detachable connection structure. In practice, the corresponding seal seat 8 may be mounted on the seal seat plate 12 according to the shape and specification of the cylinder bottom 6 to be measured. The detachable connection structure can be in a conventional connection mode such as bolt connection, pin connection, clamping connection and the like.
During implementation, the sealing seat 8 and the cylinder bottom 6 to be tested need to be compressed tightly to form a sealing cavity, in order to effectively guarantee the sealing performance of the sealing seat, an O-shaped sealing ring 7 is generally required to be arranged at the position of a sealing surface, and in order to install the O-shaped sealing ring 7, an annular sealing groove 13 for assembling the O-shaped sealing ring 7 is arranged on a sealing assembly surface at the upper end of the sealing seat 8.
Referring to fig. 3, the cylinder bottom 6 to be measured in the present invention is generally a cylinder bottom with a welding groove, the welding groove surface 6a thereof is an inclined surface, in order to effectively ensure the sealing performance of the O-ring 7, the bottom surface of the annular sealing groove 13 is an inclined surface parallel to the sealing surface (the welding groove surface 6a) at the corresponding position on the cylinder bottom 6 to be measured, and the specific structure of the annular sealing groove 13 can be seen in fig. 4 and 5.
Claims (8)
1. Detection apparatus of hydro-cylinder foundry goods cylinder bottom defect, its characterized in that: the water tank sealing device comprises a sealing seat (8) and a water tank (10), wherein the sealing seat (8) is provided with a support frame (4), and the support frame (4) is constructed to enable the sealing seat (8) to be fixedly arranged in the water tank (10) in a suspended manner; the sealing seat (8) is fixedly arranged at the lower part of the support frame (4), the upper end surface of the sealing seat (8) is provided with a sealing assembly surface matched with the cylinder bottom (6) to be tested, a gas flow channel is arranged on the sealing seat (8), one end of the gas flow channel is connected with a gas inlet connector (9), and when the cylinder bottom (6) to be tested is assembled on the sealing seat (8), the other end of the gas flow channel is communicated with a sealing cavity formed by the sealing seat (8) and the cylinder bottom (6) to be tested; the upper part of the supporting frame (4) is provided with a pressing device for pressing the cylinder bottom (6) to be measured and the sealing seat (8).
2. The detection device for the defects of the cylinder bottom of the cylinder casting according to claim 1, is characterized in that: the pressing device comprises a pressing cylinder (1), and the outer end of a piston rod of the pressing cylinder (1) is connected with a mandril (5).
3. The device for detecting the defects of the cylinder bottom of the cylinder casting according to claim 2, is characterized in that: the pressing cylinder (1) is installed on the installation plate (2), the outer end of a piston rod of the pressing cylinder (1) is connected with the ejector rod (5) through threads, the connection plate (3) is welded with the upper end of the support frame (4) into a whole, the installation plate (2) is connected with the connection plate (3) through bolts, and the ejector rod (5) penetrates through a through hole in the upper end of the support frame (4) and then extends downwards.
4. The device for detecting the defects of the cylinder bottom of the cylinder casting according to claim 2, is characterized in that: the lower end surface of the ejector rod (5) is provided with a V-shaped groove, and the length direction of the V-shaped groove is consistent with the radial direction of the ejector rod (5).
5. The detection device for the defects of the cylinder bottom of the cylinder casting according to claim 1, is characterized in that: the support frame (4) comprises a connecting plate (3), a support plate (11) and a sealing seat plate (12), wherein the connecting plate (3) and the sealing seat plate (12) are fixedly connected through the support plate (11); the connecting plate (3) is positioned at the upper part of the support frame (4) and is used for connecting the fixed platform; the sealing seat plate (12) is positioned at the lower part of the supporting frame (4) and is used for connecting the sealing seat (8).
6. The device for detecting the defects of the cylinder bottom of the cylinder casting according to claim 5, is characterized in that: the sealing seat (8) and the sealing seat plate (12) are in a detachable connection structure.
7. The detection device for the defects of the cylinder bottom of the cylinder casting according to any one of claims 1 to 6, is characterized in that: the sealing assembly surface at the upper end of the sealing seat (8) is provided with an annular sealing groove (13) for assembling the O-shaped sealing ring (7).
8. The device for detecting the defects of the cylinder bottom of the cylinder casting according to claim 7, is characterized in that: the bottom surface of the annular sealing groove (13) is an inclined surface parallel to the sealing surface at the corresponding position on the cylinder bottom (6) to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120394385.XU CN214277318U (en) | 2021-02-22 | 2021-02-22 | Detection apparatus for oil cylinder foundry goods cylinder bottom defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120394385.XU CN214277318U (en) | 2021-02-22 | 2021-02-22 | Detection apparatus for oil cylinder foundry goods cylinder bottom defect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214277318U true CN214277318U (en) | 2021-09-24 |
Family
ID=77792529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120394385.XU Active CN214277318U (en) | 2021-02-22 | 2021-02-22 | Detection apparatus for oil cylinder foundry goods cylinder bottom defect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214277318U (en) |
-
2021
- 2021-02-22 CN CN202120394385.XU patent/CN214277318U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100483095C (en) | Vacuum sealing test bed for brake master cylinder | |
| CN214277318U (en) | Detection apparatus for oil cylinder foundry goods cylinder bottom defect | |
| CN101655435A (en) | High pressure cylinder water pressure test device of combined cycle steam turbine | |
| CN215369982U (en) | Opening pressure adjusting device for explosion-proof valve of diesel engine crankcase | |
| CN107192504B (en) | Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part | |
| CN104729803A (en) | Main compressing structure of gas tightness detector for cylinder heads | |
| CN201965004U (en) | Sealing ring detector for press clutch | |
| CN215910073U (en) | Oil cleaner base copper spare gas tightness detects frock | |
| CN212963861U (en) | Oil seal leakage detection device for automobile power steering gear | |
| CN201047804Y (en) | Vacuum sealing test bed for brake master cylinder | |
| CN204881998U (en) | Utensil is examined to diversified ladder face press the sealing formula crankcase body gas tightness | |
| CN103398824A (en) | Detection device for exhaust manifold pipe air tightness | |
| CN211013388U (en) | Medium speed diesel engine cylinder head pumping pressure instrument | |
| CN219511762U (en) | Pressure measuring device for cylinder head of generator set | |
| CN205805941U (en) | A kind of centrifugal pump cover testing pressure sealing device | |
| CN111595686A (en) | Hydraulic pressure bearing test device and method for horizontal pressure container | |
| CN205748939U (en) | A kind of weight box installing mechanism of hub leak tester | |
| CN110926726A (en) | Air tightness detection device of supercharger midbody | |
| CN220185495U (en) | Filter press oil cylinder with self-detection internal leakage function | |
| CN110411876B (en) | Rupture disk experimental device | |
| CN205002930U (en) | Automobile -used plastics oil pan test equipment | |
| CN221221411U (en) | Quick-change plugging plate | |
| CN219715076U (en) | Pressure balance pressure test tool for sealing end face of workpiece | |
| CN210863058U (en) | Pressure leakage testing device for pipe parts | |
| CN218956274U (en) | Gate pressing test tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |