CN217006227U - A high-efficient sealed test bench for compact structure spare - Google Patents
A high-efficient sealed test bench for compact structure spare Download PDFInfo
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- CN217006227U CN217006227U CN202123424916.4U CN202123424916U CN217006227U CN 217006227 U CN217006227 U CN 217006227U CN 202123424916 U CN202123424916 U CN 202123424916U CN 217006227 U CN217006227 U CN 217006227U
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Abstract
The utility model provides a high-efficiency sealing test bed for a compact part, wherein a water tank is arranged on the upper table surface of a frame body between two lifting cylinders; two sides of the upper plate of the lifting platform are respectively fixed with the pistons of the two lifting cylinders, and the middle lower part of the lifting platform can be embedded in the water tank; a side pressing cylinder is arranged on the inner wall of the lifting platform, a side pressing plate is fixed at the end part of a piston of the side pressing cylinder, and the side pressing plate is matched with the side edge of the workpiece to be measured; a first pressing cylinder and a second pressing cylinder are arranged above the upper plate of the lifting platform, pistons of the first pressing cylinder and the second pressing cylinder penetrate through the lifting platform, a pressing head is arranged on the first pressing cylinder, the pressing head and the middle part of a workpiece to be detected are arranged in the first pressing cylinder, a pressing plate is fixed at the end part of the piston of the second pressing cylinder, and the pressing plate can press a flange at the bottom of the workpiece to be detected; an inflation pipeline is arranged in the side pressure plate, and an outlet of the inflation pipeline is communicated with the workpiece to be measured. The test bed can efficiently complete the sealing test of a compact product, is reliable in positioning and clamping, convenient to operate and easy to observe.
Description
Technical Field
The utility model relates to a sealing test bed technology, in particular to a high-efficiency sealing test bed for a compact part.
Background
The attached figures 1-4 show an air inlet connecting pipe on a German diesel engine, namely a high-pressure cast aluminum part (ZL104), which has an extremely compact structure, so that positioning and clamping of the high-pressure cast aluminum part are difficult to realize, and the manufacturability of the product is poor.
With the development of engine technology, the spatial layout of the engine is more compact, and the demand for such products is more and more. The sealing test of the product is carried out in water, so that the positioning and clamping are carried out simultaneously, the visibility (easy observation) of the operation is ensured, but the product has compact structure, and the positioning and clamping arrangement is difficult when the sealing test is carried out. In addition, the annual output of the product is high, the production beat can reach 3 minutes per piece, and the production beat comprises feeding, discharging, pressure maintaining and blow drying, so that the equipment is required to be efficient.
Therefore, a sealing detection test bed capable of positioning and clamping the compact products is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an efficient sealing test bed for a compact-structure part, aiming at the problems of the existing sealing detection of an air inlet connecting pipe.
In order to achieve the purpose, the utility model adopts the technical scheme that: an efficient sealing test bed for a compact part comprises a frame body, a lifting cylinder, a lifting platform and a water tank;
the cylinder bodies of the two lifting cylinders are fixed on the upper table surface of the frame body, and the water tank is arranged on the upper table surface of the frame body between the two lifting cylinders; the lifting platform is a frame capable of accommodating a workpiece to be measured, the outer edges of two sides of the upper plate of the lifting platform are respectively fixed with the pistons of the two lifting cylinders, the lifting platform is driven to move up and down by the lifting of the pistons of the two lifting cylinders, and the middle lower part of the lifting platform can be embedded in the water tank;
a positioning plate is arranged on the lower plate of the lifting platform, a positioning pin matched with a workpiece to be measured is arranged on the positioning plate, a side pressing cylinder is arranged on the inner wall of the lifting platform, a side pressing plate is fixed at the end part of a piston of the side pressing cylinder, and the side pressing plate is matched with the side edge of the workpiece to be measured; a first pressing cylinder and a second pressing cylinder are arranged above the upper plate of the lifting table, pistons of the first pressing cylinder and the second pressing cylinder are arranged in the lifting table in a penetrating mode, a pressing head is fixed to the end portion of the piston of the first pressing cylinder and can press the middle of a workpiece to be measured, a pressing plate is fixed to the end portion of the piston of the second pressing cylinder and can press a flange at the bottom of the workpiece to be measured;
an inflation pipeline is arranged in the side pressing plate, and an outlet of the inflation pipeline is communicated with a workpiece to be measured.
Further, the piston end of the first pressing cylinder is in threaded connection with the pressure head, after the piston end is adjusted to a proper height, the position of the pressure head 3 is fixed through the first limiting nut 17, and the pressure head 3 is designed to be arched, so that visibility is fully considered. During work, the first pressing cylinder pushes the pressing head to directly press the middle boss of the workpiece to be measured.
Further, the end part of the piston of the second pressing cylinder is connected with the pressing plate through a connecting rod, the end part of the piston of the second pressing cylinder is connected with the connecting rod through threads, after the piston is adjusted to a proper height, the position of the pressing plate 4 is indirectly fixed through a second limiting nut 18, and the pressing plate is arranged on one side of the workpiece to be measured in view of visibility; and a supporting screw is arranged between the pressing plate and the lower plate of the lifting platform, the lower end of the supporting screw is fixed on the lower plate of the lifting platform, and the upper end of the supporting screw is abutted to the part, far away from the workpiece to be measured, of the pressing plate. The second compresses tightly the cylinder and promotes the connecting rod during operation, and then promotes the clamp plate, and the clamp plate both ends are pressed respectively on the work piece that awaits measuring and support screw to compress tightly the work piece that awaits measuring.
Further, the number of the positioning pins is two.
Furthermore, a drain valve at the bottom of the water tank penetrates through the upper table surface of the frame body and is positioned below the upper table surface of the frame body.
Furthermore, the air path of the high-efficiency sealing test bed for the compact part comprises a lifting cylinder air path and a clamping cylinder air path, the lifting cylinder air path is respectively communicated with the two lifting cylinders, the clamping cylinder air path is respectively communicated with the side pressing cylinder, the first pressing cylinder and the second pressing cylinder, and a lifting four-way manual valve is arranged on the lifting cylinder air path; and a clamping four-way manual valve is arranged on the air path of the clamping cylinder.
Furthermore, the inlet and outlet gas circuits of the two lifting cylinders are provided with speed regulating valves; and a speed regulating valve is arranged on an air inlet path of the side pressing cylinder. The four speed regulating valves in the air passage of the lifting cylinder can control the lifting speed of the lifting platform, can also keep the lifting platform horizontal and is convenient for positioning and clamping the workpiece to be measured. A speed regulating valve in the air passage of the clamping cylinder is used for ensuring that a pressure head and a pressure plate are firstly pressed, namely, the bottom surface is firstly pressed, and then the side pressure plate is pressed, so that the workpiece can be more reliably clamped.
Furthermore, a pressure regulating valve is arranged in the air path (air inlet path of the inflation line) of the lifting cylinder, and the pressure regulating valve is used for ensuring that the air pressure entering the workpiece is 2 MPa.
Furthermore, a pressure regulating valve is arranged in the air passage of the clamping cylinder (the air inlet air passage of the side pressing cylinder) to regulate and reduce the pressing force of the side pressing plate, so that the side pressing of the workpiece can be ensured, and the bottom pressing is not firm.
The working principle of the utility model is as follows:
1. positioning: the workpiece is placed on the positioning plate 5 and positioned by two pins on one side, two positioning pins (pieces 12) are shown in the above figures.
2. Clamping: the pressing four-way manual valve 16 is moved, and the pressure head 3 and the pressure plate 4 press the workpiece to be detected from the upper side to ensure that the bottom surface is sealed; the side pressure plates 6 press the workpiece to be measured from the side surface, so that the side surface is sealed.
3. And (3) water entering and pressure maintaining: after positioning and clamping are finished, the lifting four-way manual valve 13 is moved, the lifting platform 9 can drive the workpiece to be measured to sink into the water in the water tank 10, the gas of 0.2 +/-0.02 MPa is filled into the workpiece to be measured through the gas filling pipeline on the side pressure plate 5, at the moment, whether bubbles are generated can be observed while maintaining the pressure for one minute, and the qualified product is obtained if no bubbles overflow.
4. And (3) effluent drying: after the pressure maintaining time is finished, the lifting four-way manual valve 13 is reset, and the lifting platform 9 is lifted. And then the four-way manual valve 16 is reset to compress, the workpiece is loosened, and finally the workpiece is taken down and dried by an air gun.
Compared with the prior art, the high-efficiency sealing test bed for the compact part has the following advantages:
1) the workpiece is compact in structure and difficult to compress due to the fact that visibility is guaranteed, and the pressure head designed for the method is arched. Similarly, the present invention allows for visibility, with another platen disposed on one side of the workpiece to be measured.
2) The two pressing structures (the pressing head and the pressing plate) and the pressure-adjustable design of the cylinder of the side pressing plate are controlled, so that the clamping mechanism is safe and reliable, and has good visibility during operation.
3) The sealing test bed is very convenient and simple to operate, each workpiece to be tested only needs 2.5 minutes for sealing test in actual production, and the sealing test bed is very efficient and practical after long-time mass production practice.
Drawings
FIG. 1 is a perspective view of a workpiece to be measured;
FIG. 2 is a front view of a workpiece to be measured;
FIG. 3 is a bottom view of a workpiece to be measured;
FIG. 4 is a top view of a workpiece to be measured;
FIG. 5 is a front view of an efficient seal test stand for a compact;
FIG. 6 is a top view of a high efficiency seal test stand for compact parts;
FIG. 7 is a pneumatic schematic of a high efficiency seal test stand for compact parts;
FIG. 8 is a schematic view of the connection of a first pressing cylinder and a pressing head;
FIG. 9 is a left side view of the ram;
FIG. 10 is a schematic view of the connection of the second pressing cylinder and the pressing plate;
FIG. 11 is a top view of the platen.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
The embodiment discloses an efficient sealing test bed for a compact part, which comprises a frame body, a lifting cylinder 8, a lifting platform 9 and a water tank 10, as shown in fig. 5-7;
the cylinder bodies of the two lifting cylinders 8 are fixed on the upper table surface of the frame body, and the water tank 10 is arranged on the upper table surface of the frame body between the two lifting cylinders 8; the water drain valve at the bottom of the water tank 10 penetrates through the upper table surface of the frame body and is positioned below the upper table surface of the frame body.
A positioning plate 5 is arranged on the lower plate of the lifting platform 9, two positioning pins 12 matched with a workpiece are arranged on the positioning plate 5, a side pressing cylinder 7 is arranged on the inner wall of the lifting platform 9, a side pressing plate 6 is fixed at the end part of a piston of the side pressing cylinder 7, and the side pressing plate 6 is matched with the side edge of the workpiece to be measured; a first pressing cylinder 1 and a second pressing cylinder 2 are arranged above an upper plate of the lifting table 9, pistons of the first pressing cylinder 1 and the second pressing cylinder 2 penetrate through the lifting table 9, a pressing head 3 is fixed at the end part of the piston of the first pressing cylinder 1, the pressing head 3 is connected with the middle part of a workpiece to be measured, a pressing plate 4 is fixed at the end part of the piston of the second pressing cylinder 2, and the pressing plate 4 can press a flange at the bottom of the workpiece to be measured;
an air charging pipeline 23 is arranged in the side pressing plate 6, and an outlet of the air charging pipeline 23 is communicated with a workpiece to be measured.
As shown in fig. 8 and 9, the piston end of the first pressing cylinder 1 is connected with the pressure head 3 through screw threads, and after the piston end is adjusted to a proper height, the position of the pressure head 3 is fixed by the first limit nut 17, and the design of the pressure head 3 fully considers the visibility (see a direction view). During work, the first pressing cylinder 1 pushes the pressing head 3 to directly press the middle boss of the workpiece to be measured.
As shown in fig. 10 and 11, the piston end of the second pressing cylinder 2 is connected to the pressing plate 4 through a connecting rod 19, the connecting rod 19 passes through the pressing plate 4 and is fixed by a connecting pipe limit nut 22, the piston end of the second pressing cylinder 2 is connected to the connecting rod 19 through a screw thread, and after being adjusted to a proper height, the position of the pressing plate 4 is indirectly fixed by a second limit nut 18, and the pressing plate 4 is arranged on one side of the workpiece to be measured in view of visibility; a supporting screw 20 is arranged between the pressing plate 4 and the lower plate of the lifting platform 9, the lower end of the supporting screw 20 is fixed on the lower plate of the lifting platform 9 and is fixed through a supporting limit nut 21, and the upper end of the supporting screw 20 abuts against the pressing plate 4 and is far away from a workpiece to be measured. During work, the second pressing cylinder 2 pushes the connecting rod 19 to further push the pressing plate 4, and two ends of the pressing plate 4 are respectively pressed on the workpiece to be measured and the supporting screw 20, so that the workpiece to be measured is pressed.
As shown in fig. 7, the gas circuit of the high-efficiency sealing test bed for the compact part comprises a lifting cylinder gas circuit and a clamping cylinder gas circuit, wherein the lifting cylinder gas circuit is respectively communicated with two lifting cylinders 8, the clamping cylinder gas circuit is respectively communicated with a side pressing cylinder 7, a first pressing cylinder 1 and a second pressing cylinder 2, and a lifting four-way manual valve 13 is arranged on the lifting cylinder gas circuit; and a clamping four-way manual valve 16 is arranged on the air path of the clamping cylinder.
The air inlet and outlet paths of the two lifting cylinders 8 are respectively provided with a speed regulating valve 14; and a speed regulating valve 14 is arranged on an air inlet path of the side compacting cylinder 7. The four speed regulating valves 14 in the air passage of the lifting cylinder can control the lifting speed of the lifting platform 9, and can also keep the lifting platform 9 horizontal, thereby facilitating the positioning and clamping of the workpiece to be measured. A speed regulating valve 14 in the air passage of the clamping cylinder is used for ensuring that the pressure head 3 and the pressure plate 4 are firstly pressed, namely the bottom surface is firstly pressed, and then the side pressure plate 6 is pressed, so that the workpiece can be more reliably clamped.
A pressure regulating valve 15 is arranged in the air path (air inlet path of the inflation pipeline) of the lifting cylinder, and the pressure regulating valve 15 is used for ensuring that the air pressure entering the workpiece is 2 MPa.
The pressure regulating valve 15 is arranged in the air path of the clamping cylinder (the air inlet air path of the side pressing cylinder 7) and is used for regulating and reducing the pressing force of the side pressing plate 6 so as to ensure that the workpiece can be pressed on the side surface and the bottom surface cannot be pressed firmly.
The working principle of the utility model is as follows:
1. positioning: the workpiece is placed on the positioning plate 5 and positioned by two pins on one side, two positioning pins (pieces 12) are shown in the above figures.
2. Clamping: the pressing four-way manual valve 16 is moved, the pressure head 3 and the pressure plate 4 press the workpiece to be detected from the upper side, and the bottom surface is ensured to be sealed; the side pressure plates 6 press the workpiece to be measured from the side surface, so that the side surface is sealed.
3. And (3) water entering and pressure maintaining: after positioning and clamping are finished, the lifting four-way manual valve 13 is moved, the lifting platform 9 can drive the workpiece to be measured to sink into the water in the water tank 10, the gas of 0.2 +/-0.02 MPa is filled into the workpiece to be measured through the gas filling pipeline on the side pressure plate 5, at the moment, whether bubbles are generated can be observed while maintaining the pressure for one minute, and the qualified product is obtained if no bubbles overflow.
4. And (3) effluent drying: after the pressure maintaining time is finished, the lifting four-way manual valve 13 is reset, and the lifting platform 9 is lifted. And then the four-way manual valve 16 is reset to compress, the workpiece is loosened, and finally the workpiece is taken down and dried by an air gun.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A high-efficiency sealing test bed for a compact part is characterized by comprising a frame body, a lifting cylinder (8), a lifting table (9) and a water tank (10);
the cylinder bodies of the two lifting cylinders (8) are fixed on the upper table surface of the frame body, and the water tank (10) is arranged on the upper table surface of the frame body between the two lifting cylinders (8); the lifting platform (9) is a frame capable of accommodating a workpiece to be detected, the outer edges of two sides of an upper plate of the lifting platform (9) are respectively fixed with pistons of two lifting cylinders (8), and the middle lower part of the lifting platform (9) can be embedded in a water tank;
a positioning plate (5) is arranged on the lower plate of the lifting platform (9), a positioning pin (12) matched with a workpiece to be detected is arranged on the positioning plate (5), a side pressing cylinder (7) is arranged on the inner wall of the lifting platform (9), a side pressing plate (6) is fixed at the end part of a piston of the side pressing cylinder (7), and the side pressing plate (6) is matched with the side edge of the workpiece to be detected; a first pressing cylinder (1) and a second pressing cylinder (2) are arranged above the upper plate of the lifting platform (9), pistons of the first pressing cylinder (1) and the second pressing cylinder (2) penetrate through the lifting platform (9), a pressing head (3) is fixed at the end part of the piston of the first pressing cylinder (1), the pressing head (3) can be pressed in the middle of a workpiece to be tested, a pressing plate (4) is fixed at the end part of the piston of the second pressing cylinder (2), and the pressing plate (4) can be pressed on a flange at the bottom of the workpiece to be tested;
an inflation pipeline is arranged in the side pressing plate (6), and an outlet of the inflation pipeline is communicated with a workpiece to be measured.
2. The high-efficiency sealing test bed for the compact parts according to the claim 1 is characterized in that the end part of the piston of the first compaction cylinder (1) is in threaded connection with the pressure head (3), and after the piston is adjusted to a proper height, the position of the pressure head (3) is fixed by a first limit nut (17).
3. The high-efficiency sealing test bed for the compact part according to claim 1, characterized in that the end of the piston of the second pressing cylinder (2) is connected with the pressure plate (4) through a connecting rod (19), the end of the piston of the second pressing cylinder (2) is connected with the connecting rod (19) through a thread, after being adjusted to a proper height, the position of the pressure plate (4) is indirectly fixed through a second limit nut (18), and the pressure plate (4) is arranged on one side of a workpiece to be measured; and a supporting screw (20) is arranged between the pressing plate (4) and the lower plate of the lifting platform (9), the lower end of the supporting screw (20) is fixed on the lower plate of the lifting platform (9), and the upper end of the supporting screw is abutted to the position, far away from the workpiece to be measured, of the pressing plate (4).
4. The high-efficiency sealing test bed for compact parts according to claim 1, characterized in that the number of the positioning pins (12) is two.
5. The high-efficiency sealing test bed for the compact parts according to claim 1, characterized in that a water drain valve at the bottom of the water tank (10) penetrates through the upper table of the rack body and is positioned below the upper table of the rack body.
6. The efficient sealing test bed for the compact parts according to claim 1, wherein the gas path of the efficient sealing test bed for the compact parts comprises a lifting cylinder gas path and a clamping cylinder gas path, the lifting cylinder gas path is respectively communicated with two lifting cylinders (8), the clamping cylinder gas path is respectively communicated with a side pressing cylinder (7), a first pressing cylinder (1) and a second pressing cylinder (2), and a lifting four-way manual valve (13) is arranged on the lifting cylinder gas path; and a clamping four-way manual valve (16) is arranged on the air path of the clamping cylinder.
7. The high-efficiency sealing test bed for the compact parts according to claim 6, characterized in that the inlet and outlet gas paths of the two lifting cylinders (8) are provided with speed regulating valves (14).
8. The high-efficiency sealing test bed for the compact parts according to claim 6, characterized in that a speed regulating valve (14) is arranged on an air inlet path of the side compacting cylinder (7).
9. The high-efficiency sealing test bed for compact parts according to claim 6, characterized in that a pressure regulating valve (15) is arranged in the air passage of the lifting cylinder.
10. The high-efficiency sealing test bed for compact parts according to claim 6, characterized in that a pressure regulating valve (15) is arranged in the air passage of the clamping cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123424916.4U CN217006227U (en) | 2021-12-31 | 2021-12-31 | A high-efficient sealed test bench for compact structure spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123424916.4U CN217006227U (en) | 2021-12-31 | 2021-12-31 | A high-efficient sealed test bench for compact structure spare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217006227U true CN217006227U (en) | 2022-07-19 |
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ID=82388389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123424916.4U Active CN217006227U (en) | 2021-12-31 | 2021-12-31 | A high-efficient sealed test bench for compact structure spare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217006227U (en) |
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2021
- 2021-12-31 CN CN202123424916.4U patent/CN217006227U/en active Active
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