Air pressure rising type supporting height self-adaptive supporting device

Abstract

An air pressure rising type supporting height self-adaption supporting device is composed of an ejector head, a plunger, a first spring, an upper cover, a dustproof sealing ring, a first sealing ring, a body, a second sealing ring, a piston, a conical ring, a steel ball, a conical sleeve, an upper check ring, a core, a second spring, a lower check ring, a first clamping ring, a third sealing ring, a second clamping ring, a fourth sealing ring, a third clamping ring, a fifth sealing ring, an installation base, a valve element, a sixth sealing ring and a third spring. The supporting device is fixed to a workbench, under the condition that no workpiece is placed, the ejector head, the plunger and the valve element are in a retracted state under the action of the first spring and the third spring, at the moment, the workpiece needing to be supported is placed above the supporting device, air pressure is introduced into the locking air inlet, and the supporting device is locked. The valve element overcomes the acting force of the first spring and the third spring to push the ejector head and the plunger to move upwards until the ejector head makes contact with a workpiece needing to be supported, meanwhile, the taper sleeve tightly holds the plunger, the ejector head and the plunger can bear downward pressure, strong supporting of the ejector head and the plunger to the workpiece is achieved, and even if the size of the position, needing to be supported, of the workpiece changes, the workpiece is not damaged. And high-adaptive strong tight connection support can also be realized.

Description

Technical Field

[0001] The utility model design relates to an air pressure rising type support height self-adaptive supporter which plays a supporting role in the field of mechanical processing and automated manufacturing. Background Art

[0002] At present, it is well known that bolt-type supports can play a supporting role for workpieces. The usual practice is to manually adjust the bolt-type supports so that the supports can firmly and reliably support the corresponding parts of the workpieces. However, when the size of the parts to be supported in a batch of workpieces varies, the bolt-type supports need to be used according to the height of each workpiece. The height of the bolt-type supports needs to be adjusted separately, which will inevitably take a long time and will inevitably cause the production line to stop for a long time, thereby wasting a lot of downtime and greatly reducing the production utilization rate of production equipment. Summary of the invention

[0003] In the process of clamping and supporting the workpiece on the production line, in order to reduce the downtime and realize fast, firm and reliable support of the workpiece, the utility model provides a pneumatic rising support height adaptive support device, which is fixed on the workbench. When no workpiece is placed, the top, plunger and valve core are in a retracted state under the action of spring one and spring three. At this time, the workpiece to be supported is placed on the support device, and air pressure is introduced into the locking air inlet on the mounting seat. The valve core overcomes the action of spring one and spring three to push the top and plunger upward until the top contacts the workpiece to be supported and stops. At the same time, the cone sleeve clamps the plunger, so that the top and plunger can withstand the downward pressure, thereby realizing strong support of the workpiece by the top and plunger. Even if the size of the workpiece to be supported changes, highly adaptive and strong close support can be achieved.

[0004] The design scheme adopted by the utility model to realize the air pressure rising type support height self-adaptive function is: composed of a top head, a plunger, a spring 1, an upper cover, a dustproof sealing ring, a sealing ring 1, a body, a sealing ring 2, a piston, a cone ring, a steel ball, a cone sleeve, an upper retaining ring, a core, a spring 2, a lower retaining ring, a clamping ring 1, a sealing ring 3, a clamping ring 2, a sealing ring 4, a clamping ring 3, a sealing ring 5, a mounting seat, a valve core, a sealing ring 6, and a spring 3. The top head is installed on the head of the plunger through a thread, the dustproof sealing ring is installed in the inner side undercut groove of the upper cover, the sealing ring 1 is installed in the outer peripheral groove of the upper cover, and the upper The cover and the body are fixed together by interference fit. The sealing ring three, the sealing ring four and the sealing ring five are respectively installed in the sealing ring grooves at the upper, middle and lower parts of the core. The core is installed in the body. The bottom of the core contacts the bottom surface of the mounting seat. The core is fixed in the body by the clamping ring two and the clamping ring three installed in the body. The upper end of the spring one contacts the lower end of the top head, and the lower end of the spring contacts the upper part of the valve core. The sealing ring two is installed in the inner undercut groove on the upper part of the piston. The piston is located inside the body. The upper part of the piston is inserted into the lower part of the upper cover. The outer wall of the piston is in full contact with the inner wall of the body. The cone ring is located at the inner upper part of the piston, the inner wall of the cone ring is tapered all around, the cone sleeve is mounted on the plunger, the outer wall of the cone sleeve is tapered all around and is the same as the inner wall of the cone ring, the side wall of the cone sleeve has an opening from top to bottom, when air pressure is not passed through the locking air inlet on the mounting seat, there is a gap between the inner wall of the cone sleeve and the outer wall of the plunger, the steel balls are located between the cone ring and the cone sleeve, and the steel balls are distributed in the entire space surrounded by the cone ring, the cone sleeve and the upper retaining ring, the upper retaining ring is mounted in the middle of the cone sleeve, the upper end face of the upper retaining ring is in contact with the cone ring and the steel balls, and the lower end face is pressed tightly against the upper end of the spring two The lower retaining ring is sleeved on the lower part of the cone sleeve, the retaining ring 1 is located between the lower end face of the lower retaining ring and the step face of the cone sleeve, the lower end face of the spring 2 is pressed against the upper step face of the lower retaining ring, the valve core is installed in the central through hole of the core and the plunger, the sealing ring 6 is sleeved in the sealing ring groove at the lower part of the valve core, the spring 3 is sleeved on the valve core, the lower end face of the spring 3 is pressed against the step face of the valve core, the upper end face of the spring 3 is pressed against the end face of the central step hole of the core, the body and the mounting seat are fixed together by their own internal and external threads, and the mounting seat and the core are respectively provided with locking air inlet and exhaust port.

[0005] The valve core is pressed downwardly and the air pressure is increased, so that the air in the valve core is in a state of being pushed downwardly and the air pressure in the valve core is increased. The air inlet enters the gap between the piston and the body and reaches the upper part of the piston. The piston moves downward under the action of air pressure, thereby pushing the cone ring downward. Because the inner wall of the cone ring has a taper all around, the inner wall of the cone ring and the steel ball produce rolling friction, and the steel ball also moves downward under the action of rolling friction. The outer wall of the cone sleeve has the same taper as the cone ring all around. While the steel ball moves downward, it squeezes the cone sleeve inward along the radial direction of the cone sleeve in the entire circumference. The side wall of the cone sleeve has an opening from top to bottom, and the cone sleeve will shrink and deform, thereby holding the plunger tightly, so that the plunger can stop and be held at any height within the stroke range to adapt to supported parts of different sizes, thereby achieving the function of supporting height self-adaptation; when the air pressure input at the locking inlet is released, the cone ring resets upward under the action of spring 2, and the steel ball also moves upward, releasing the squeeze on the cone sleeve, and the cone sleeve rebounds and resets to release the hold on the plunger. The valve core returns to the lowest position under the action of spring 3, and the head and plunger retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0007] Figure 1 It is a longitudinal sectional view of the utility model (no air pressure is introduced into the locking air inlet on the mounting seat, the cone sleeve does not hold the plunger tightly, the valve core is located at the lowest position under the action of spring three, the spring one is not squeezed by the valve core, and the top head and the plunger are in a retracted state).

[0008] Figure 2 yes Figure 1 AA section view (the steel ball is located between the cone ring and the cone sleeve, and the cone sleeve does not hold the plunger tightly).

[0009] Figure 3It is a longitudinal sectional view of the utility model (air pressure is introduced into the locking air inlet located on the mounting seat, and the valve core overcomes the action forces of springs one and three and moves upward, and spring one pushes the top and the plunger upward until the top contacts the workpiece to be supported and stops, and the valve core overcomes the action force of spring three under the action of air pressure and continues to move upward until the lower part of the valve core passes over the locking air inlet located on the core, so that the entered gas enters the gap between the piston and the body through the locking air inlet on the core and reaches the upper part of the piston, and the piston moves downward under the action of air pressure, thereby pushing the cone ring to move downward, because the inner wall of the cone ring has a taper around its entire circumference, the inner wall of the cone ring and the steel ball produce rolling friction, and the steel ball also moves downward under the action of rolling friction, and the outer wall of the cone sleeve has the same taper as the cone ring around its entire circumference, and while the steel ball moves downward, it squeezes the cone sleeve inwardly along the radial direction of the cone sleeve in the entire circumferential direction, and the side wall of the cone sleeve has an opening from top to bottom, and the cone sleeve will shrink and deform, thereby holding the plunger tightly).

[0010] In the figure, 1. top head, 2. plunger, 3. spring 1, 4. upper cover, 5. dustproof sealing ring, 6. sealing ring 1, 7. body, 8. sealing ring 2, 9. piston, 10. cone ring, 11. steel ball, 12. cone sleeve, 13. upper retaining ring, 14. core, 15. spring 2, 16. lower retaining ring, 17. snap ring 1, 18. sealing ring 3, 19. snap ring 2, 20. sealing ring 4, 21. snap ring 3, 22. sealing ring 5, 23. mounting seat, 24. valve core, 25. sealing ring 6, 26. spring 3, B is the locking air inlet on the mounting seat, D is the locking air inlet on the core, C is the exhaust port on the mounting seat, E is the exhaust port on the core, and F is the opening on the side wall of the cone sleeve. DETAILED DESCRIPTION

[0011] exist Figure 1 In the embodiment, when no air pressure is introduced into the locking air inlet B on the mounting seat 23, the cone sleeve 12 does not hold the plunger 2 tightly, the valve core 24 is located at the lowest position under the action of the spring three 26, the spring one 3 is not squeezed by the valve core 24, and the top head 1 and the plunger 2 are in a retracted state.

[0012] exist Figure 2 In the embodiment, the steel ball 11 is located between the cone ring 10 and the cone sleeve 12, and the cone sleeve 12 does not hold the plunger 2 tightly.

[0013] exist Figure 3In the process, air pressure is introduced into the locking air inlet B located on the mounting seat 23, and the valve core 24 overcomes the force of the spring 1 3 and the spring 3 26 to move upward, and the spring 1 3 pushes the head 1 and the plunger 2 to move upward until the head 1 contacts the workpiece to be supported and stops, and the valve core 24 continues to move upward under the action of the air pressure to overcome the force of the spring 3 26 until the lower part of the valve core 24 passes over the locking air inlet D located on the core 14, so that the incoming gas enters the gap between the piston 9 and the body 7 through the locking air inlet D on the core 14 and When it reaches the upper part of the piston 9, the piston 9 moves downward under the action of air pressure, thereby pushing the cone ring 10 to move downward. Because the inner wall of the cone ring 10 has a taper all around, the inner wall of the cone ring 10 and the steel ball 11 produce rolling friction, and the steel ball 11 also moves downward under the action of rolling friction. The outer wall of the cone sleeve 12 has the same taper as the cone ring 10 all around. While the steel ball 11 moves downward, it squeezes the cone sleeve 12 inward in the radial direction of the cone sleeve 12 in the all-round direction. The side wall of the cone sleeve 12 has an opening F from top to bottom, and the cone sleeve 12 will shrink and deform, thereby holding the plunger 2 tightly.

Claims

1. A pressure-raising support height adaptive support, characterized in that It consists of a top, a plunger, a spring 1, an upper cover, a dustproof sealing ring, a sealing ring 1, a body, a sealing ring 2, a piston, a cone ring, a steel ball, a cone sleeve, an upper retaining ring, a core, a spring 2, a lower retaining ring, a snap ring 1, a sealing ring 3, a snap ring 2, a sealing ring 4, a snap ring 3, a sealing ring 5, a mounting seat, a valve core, a sealing ring 6 and a spring 3. The top is installed on the head of the plunger through a thread, the dustproof sealing ring is installed in the inner undercut groove of the upper cover, the sealing ring 1 is installed in the outer groove of the upper cover, the upper cover and the body are fixed together by an interference fit, the sealing ring 3 and the sealing ring Ring 4 and sealing ring 5 are respectively installed in the sealing ring grooves at the upper, middle and lower parts of the core. The core is installed in the body, and the bottom of the core contacts the bottom surface of the mounting seat. The core is fixed in the body by snap rings 2 and 3 installed in the body. The upper end of spring 1 contacts the lower end of the top head, and the lower end of the spring contacts the upper part of the valve core. Sealing ring 2 is installed in the inner undercut groove of the upper part of the piston. The piston is located inside the body, and the upper part of the piston is inserted into the lower part of the upper cover. There is a gap between the outer wall of the piston and the inner wall of the body. The cone ring is located on the upper inner side of the piston. The inner wall of the cone ring has a taper all around, the cone sleeve is mounted on the plunger, the outer wall of the cone sleeve has a taper all around and is the same as the taper of the inner wall of the cone ring all around, the side wall of the cone sleeve has an opening from top to bottom, when the air pressure is not passed through the locking air inlet on the mounting seat, there is a gap between the inner wall of the cone sleeve and the outer wall of the plunger all around, the steel ball is located between the cone ring and the cone sleeve, and the steel ball is distributed in the entire space surrounded by the cone ring, the cone sleeve and the upper retaining ring, the upper retaining ring is mounted in the middle of the cone sleeve, the upper end face of the upper retaining ring is in contact with the cone ring and the steel ball, the lower end face is pressed against the upper end face of the spring 2, and the lower retaining ring is mounted on At the lower part of the cone sleeve, the clamping ring 1 is located between the lower end surface of the lower retaining ring and the step surface of the cone sleeve, the lower end surface of the spring 2 is pressed against the upper step surface of the lower retaining ring, the valve core is installed in the central through hole of the core and the plunger, the sealing ring 6 is installed in the sealing ring groove at the lower part of the valve core, the spring 3 is installed on the valve core, the lower end surface of the spring 3 is pressed against the step surface of the valve core, and the upper end surface of the spring 3 is pressed against the end surface of the central step hole of the core. The body and the mounting seat are fixed together by their own internal and external threads, and the mounting seat and the core are respectively provided with locking air inlet and exhaust ports.

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