O-shaped ring expansion equipment
By designing O-ring expansion equipment, the automatic expansion of O-ring is achieved using pins and board pulling mechanisms, the problems of low manual expansion efficiency and poor consistency are solved, the expansion efficiency and yield rate are improved, and it is suitable for industrial production.
Patent Information
- Application Number
- CN202422339604.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the prior art, the pre-expansion of O-rings mainly relies on manual stretching, which leads to high cost, low efficiency, easy to damage or incomplete expansion, affects the yield rate, and is difficult to meet the needs of large-scale industrial production.
An O-ring expansion device is designed, including a pin insertion mechanism and a board pulling mechanism. The material picking part of the pin insertion extends into the board pulling under external force, and squeezes the board pulling apart to achieve the expansion of the O-ring. The elastic parts of the board pulling board pulling back to its original position to ensure the consistency of each expansion.
It achieves convenient and efficient expansion of O-rings, improves the consistency and yield rate of expansion, and reduces the cost and risk of manual operation.
Smart Images
Figure CN223199542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a jig, in particular to an O-ring expansion device. Background Art
[0002] With the development of the times, industrial production technology is also developing rapidly. O-rings (O-rings, also known as O-type rubber sealing rings) have been used more and more in various products. Before assembly, O-rings need to be pre-expanded for ease of assembly. Currently, the pre-expansion of O-rings is usually done by manually stretching the O-rings. The use of manual operation is not only costly but also inefficient. In the pre-expansion process, it is easy to damage the O-rings by excessive force or to expand them inadequately by insufficient force, resulting in a decrease in the yield rate. In the industrial field that emphasizes cost reduction and efficiency improvement, the O-rings lack competitiveness and are not conducive to large-scale promotion and industrial production. Utility Model Content
[0003] In order to overcome the above-mentioned defects, the utility model provides an O-ring expansion device, which has the advantage of being easy to expand the O-ring.
[0004] In order to solve the technical problems, the utility model adopts the following technical solution: an O-ring expansion device, comprising: a pin insertion mechanism and a plate pulling mechanism, the plate pulling mechanism is provided with two plates, the two plates can be close to each other under the drive of an elastic member, the pin insertion mechanism is provided with an insertion pin, the bottom end of the insertion pin is provided with a picking piece with a wide top and a narrow bottom, the O-ring is made of elastic material, the inner ring of the O-ring can be sleeved on the middle part of the picking piece, the picking piece can be extended from top to bottom between the two plates under the drive of external force, the outer peripheral wall of the picking piece can squeeze the two plates, the two plates can be squeezed away from each other and compress the elastic member under the squeeze of the picking piece, the bottom surface of the O-ring can abut against the top surfaces of the two plates, and the top end of the picking piece can pass through the inner ring of the O-ring and expand the O-ring under the drive of external force.
[0005] Optionally, the pin mechanism includes a shell and a pin, a fixing hole is formed through the shell, the pin is fixed in the fixing hole, and a material picking piece at the bottom end of the pin extends out of the fixing hole.
[0006] Optionally, the lifting plate mechanism includes two lifting plates, a base plate, a sliding rail, two slides, two fixed plates, two optical axes and two elastic members. The sliding rail is fixed to the top surface of the base plate, and the two slides are slidably connected to the sliding rails side by side. One lifting plate corresponds to one slide, and the lifting plate is fixed to the top of the slide. The two fixed plates are vertically fixed to the side surfaces of the base plate in opposite directions. A first connecting hole is provided on the side wall of the slide. One fixed plate corresponds to one slide, one optical axis and one elastic member. The first end of the optical axis is fixed to the fixed plate, and the second ends of the optical axis face each other. The second end of the optical axis slides through the first connecting hole. The elastic member is sleeved on the optical axis, and the two ends of the elastic member respectively abut against the fixed plate and the slide, and the optical axis and the sliding rail are parallel to each other.
[0007] Optionally, the elastic member is a compression spring.
[0008] Optionally, the pin is made of anti-static material, and the material picking piece includes a root, a transition section and an end. The root is located at the top of the material picking piece, the transition section is located in the middle of the material picking piece, and the end is located at the bottom of the material picking piece. The root is truncated cone-shaped, and the top diameter of the root is larger than the bottom diameter of the root. The top of the root is connected to the bottom end of the pin, and the end is conical, and the top diameter of the end is larger than the bottom diameter of the end. The transition section is cylindrical, and the two ends of the transition section are respectively connected to the bottom end of the root and the top end of the end. The outer peripheral wall of the top end of the root is protruding to provide a limit piece, and the top end of the O-ring can abut against the limit piece.
[0009] Optionally, a fixing seat is further included, the top end of the fixing seat is fixed to the side wall of the shell, and two connecting pins are protruding from the bottom end of the fixing seat. Two second connecting holes for the connecting pins to extend into are provided on the sliding plate. A positioning plate is provided between the sliding seat and the sliding plate, and a protrusion is provided at the bottom of the positioning plate. A positioning piece is fixed to the top surface of the bottom plate, and the positioning piece is located between the two protrusions. The two protrusions can approach each other and abut against the positioning piece under the drive of the compression spring, and the positioning piece can prevent the two sliding plates from contacting each other.
[0010] The beneficial technical effect of the present invention is as follows: the O-ring expansion device includes: a pin mechanism and a plate mechanism. When in use, the inner ring of the O-ring is first manually sleeved on the middle part of the material picking piece. The diameter of the middle part of the material picking piece is the same as the inner diameter of the inner ring of the O-ring in the initial state. At this time, the inner ring of the O-ring can just fit in the middle part of the material picking piece and fix the O-ring. Then, the pin mechanism is manually grasped and the material picking piece is aligned between the two plates. Then, the material picking piece is extended from top to bottom between the two plates. The side wall of the material picking piece squeezes the two plates and separates the two plates. At this time, the bottom surface of the O-ring can abut against the top surface of the lifting plate, and the lifting plate can prevent the O-ring from moving downward. As the picker gradually moves downward and extends between the two lifting plates, the top of the picker can extend into the inner ring of the O-ring. Because the diameter of the top of the picker is larger than the inner diameter of the O-ring in its initial state, the O-ring can be expanded by the top of the picker, thereby achieving the effect of expanding the O-ring. Compared with manually stretching the O-ring to achieve the expansion of the O-ring, the operation is more convenient. At the same time, because the size of the top of the picker is fixed, the consistency of each expansion is also better. It has the advantage of facilitating the expansion of the O-ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a three-dimensional view of the entire machine of the utility model;
[0012] Figure 2 This is a front view of the entire machine of the utility model;
[0013] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;
[0014] in:
[0015] 1. Pin mechanism; 11. Pin; 12. Housing; 13. Root; 14. Transition section; 15. End; 16. Limiting piece; 17. Fixed seat; 18. Connecting pin; 2. Plate-lifting mechanism; 21. Plate-lifting; 22. Bottom plate; 23. Slide rail; 24. Slide seat; 25. Second connecting hole; 26. Optical axis; 27. Positioning plate; 28. Bump; 29. Fixed plate. DETAILED DESCRIPTION
[0016] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.
[0017] This specific embodiment describes in detail the O-ring expansion device described in this application, such as Figure 1-Figure 3As shown, the O-ring expansion device includes: a pin insertion mechanism 1 and a plate pulling mechanism 2, two plates 21 are provided on the plate pulling mechanism 2, and the two plates 21 can approach each other under the drive of the elastic member, the pin insertion mechanism 1 is provided with an insertion pin 11, and the bottom end of the insertion pin 11 is provided with a material picking member with a wide top and a narrow bottom. The O-ring is made of elastic material, and the inner ring of the O-ring can be sleeved on the middle part of the material picking member. The material picking member can extend from top to bottom between the two plates 21 under the drive of external force, and the outer peripheral wall of the material picking member can squeeze the two plates 21. The two plates 21 can move away from each other and compress the elastic member under the squeeze of the material picking member, and the bottom surface of the O-ring can abut against the top surfaces of the two plates 21. The top end of the material picking member can pass through the inner ring of the O-ring and expand the O-ring under the drive of external force. When in use, first manually put the inner ring of the O-ring on the middle of the material picking piece. The diameter of the middle of the material picking piece is the same as the inner diameter of the inner ring of the O-ring in the initial state. At this time, the inner ring of the O-ring can just fit in the middle of the material picking piece and fix the O-ring through friction. Then manually grab the pin mechanism 1 and align the material picking piece between the two plates 21. Then, extend the material picking piece from top to bottom between the two plates 21. The side wall of the material picking piece squeezes the two plates 21 and separates the two plates 21. At this time, the bottom surface of the O-ring can rest against the plates 2 1, the plate 21 can prevent the O-ring from moving downward. As the picker gradually moves downward and extends between the two plates 21, the top of the picker can extend into the inner ring of the O-ring. Because the diameter of the top of the picker is larger than the inner diameter of the O-ring in its initial state, the O-ring can be expanded by the top of the picker, thereby achieving the effect of expanding the O-ring. Compared with manually stretching the O-ring to achieve the expansion of the O-ring, the operation is more convenient. At the same time, because the size of the top of the picker is fixed, the consistency of each expansion is also better. It has the advantage of facilitating the expansion of the O-ring.
[0018] Optionally, in this embodiment, the pin mechanism 1 includes a shell 12 and a pin 11. A fixing hole is formed through the shell 12. The pin 11 is fixed in the fixing hole, and a material-removing piece at the bottom end of the pin 11 extends out of the fixing hole.
[0019] Optionally, in this embodiment, the plate-pulling mechanism 2 includes two plates 21, a base plate 22, a slide rail 23, two slide seats 24, two fixed plates 29, two optical axes 26 and two elastic members. The slide rail 23 is fixed to the top surface of the base plate 22, and the two slide seats 24 are slidably connected to the slide rail 23 side by side. One plate 21 corresponds to one slide seat 24, and the plate 21 is fixed to the top end of the slide seat 24. The two fixed plates 29 are vertically fixed to the side surfaces of the base plate 22 in opposite directions. The side walls of the slide seats 24 are provided with a first connecting hole, and one fixed plate 29 corresponds to one slide seat 24, an optical axis 26 and an elastic member. The first end of the optical axis 26 is fixed to the fixed plate 29, and the second ends of the optical axis 26 face each other. The second end of the optical axis 26 is slidably passed through the first connecting hole, and the elastic member is sleeved on the optical axis 26. The two ends of the elastic member respectively abut against the fixed plate 29 and the slide seat 24, and the optical axis 26 and the slide rail 23 are parallel to each other. When the material picking piece extends between the two plates 21, the two plates 21 move away from each other under the pressure of the material picking piece, and at the same time compress the elastic member. When the material picking piece is separated from the plates 21, the two plates 21 are reset under the drive of the elastic member.
[0020] Optionally in this embodiment, the elastic member is a compression spring.
[0021] In this embodiment, the pin 11 is optionally made of an antistatic material, and the pick-up member includes a root 13, a transition section 14, and an end 15. The root 13 is located at the top of the pick-up member, the transition section 14 is located in the middle of the pick-up member, and the end 15 is located at the bottom of the pick-up member. The root 13 is truncated cone-shaped, with a top diameter greater than a bottom diameter of the root 13. The top of the root 13 connects to the bottom of the pin 11. The end 15 is conical, with a top diameter greater than a bottom diameter of the end 15. The transition section 14 is cylindrical, with the two ends of the transition section 14 connecting the bottom end of the root 13 and the top end of the end 15, respectively. A limit member 16 is protruding from the outer peripheral wall of the top end of the root 13, and the top end of the O-ring can abut against the limit member 16. The limit member 16 can serve as a limit to prevent the O-ring from excessive upward movement and separation from the pick-up member.
[0022] This embodiment optionally further includes a fixing base 17. The top of the fixing base 17 is fixed to the side wall of the housing 12. Two connecting pins 18 are protruding from the bottom of the fixing base 17. Two second connecting holes 25 are defined in the guide plate 21 for the connecting pins 18 to extend into. A positioning plate 27 is disposed between the slide 24 and the guide plate 21. A protrusion 28 is disposed at the bottom of the positioning plate 27. A positioning member is fixed to the top surface of the bottom plate 22. The positioning member is located between the two protrusions 28. Driven by a compression spring, the two protrusions 28 can approach each other and abut against the positioning member, thereby preventing the two guide plates 21 from contacting each other. This creates a gap between the two guide plates 21, facilitating the insertion of a material removal component between the two guide plates 21.
[0023] The use of the O-ring expansion device in this embodiment has the advantage of being easy to expand the O-ring.
Claims
1. An O-ring expansion device, characterized in that: include: The pin insertion mechanism (1) and the plate pulling mechanism (2) are provided with two plates (21), and the two plates (21) can approach each other under the driving of the elastic member. The pin insertion mechanism (1) is provided with an insertion pin (11), and the bottom end of the insertion pin (11) is provided with a material picking member with a wide top and a narrow bottom. The O-ring is made of elastic material, and the inner ring of the O-ring can be sleeved on the middle part of the material picking member. The material picking member can extend from top to bottom between the two plates (21) under the driving of external force. The outer peripheral wall of the material picking member can squeeze the two plates (21). The two plates (21) can move away from each other and compress the elastic member under the squeezing of the material picking member. The bottom surface of the O-ring can abut against the top surfaces of the two plates (21). The top end of the material picking member can penetrate from the inner ring of the O-ring and expand the O-ring under the driving of external force.
2. The O-ring expansion device according to claim 1, characterized in that: The pin insertion mechanism (1) comprises a housing (12) and a pin (11); a fixing hole is provided through the housing (12); the pin (11) is fixed in the fixing hole; and a material taking piece at the bottom end of the pin (11) extends out of the fixing hole.
3. The O-ring expansion device according to claim 2, characterized in that: The plate-pulling mechanism (2) comprises two plates (21), a base plate (22), a slide rail (23), two slide seats (24), two fixed plates (29), two optical axes (26) and two elastic members. The slide rail (23) is fixed to the top surface of the base plate (22). The two slide seats (24) are slidably connected to the slide rail (23) side by side. One plate (21) corresponds to one slide seat (24). The plate (21) is fixed to the top of the slide seat (24). The two fixed plates (29) are fixed to the base plate (22) vertically in opposite directions. A first connecting hole is provided on the side wall of the slide seat (24), a fixing plate (29) corresponds to a slide seat (24), an optical axis (26) and an elastic member, a first end of the optical axis (26) is fixed to the fixing plate (29), and the second ends of the optical axis (26) face each other, the second end of the optical axis (26) is slidably passed through the first connecting hole, the elastic member is sleeved on the optical axis (26), the two ends of the elastic member respectively abut against the fixing plate (29) and the slide seat (24), and the optical axis (26) and the slide rail (23) are parallel to each other.
4. The O-ring expansion device according to claim 3, characterized in that: The elastic member is a compression spring.
5. The O-ring expansion device according to claim 2, characterized in that: The pin (11) is made of antistatic material, and the material picking piece includes a root (13), a transition section (14) and an end section (15). The root (13) is located at the top of the material picking piece, the transition section (14) is located in the middle of the material picking piece, and the end section (15) is located at the bottom of the material picking piece. The root (13) is in a truncated cone shape, and the top diameter of the root (13) is larger than the bottom diameter of the root (13). The top of the root (13) is connected to the bottom end of the pin (11), and the end section (15) is in a conical shape, and the top diameter of the end section (15) is larger than the bottom diameter of the end section (15). The transition section (14) is in a cylindrical shape, and the two ends of the transition section (14) are respectively connected to the bottom end of the root (13) and the top end of the end section (15). A limiting piece (16) is provided on the outer peripheral wall of the top end of the root (13), and the top end of the O-ring can abut against the limiting piece (16).
6. The O-ring expansion device according to claim 5, characterized in that: The invention also includes a fixing seat (17), the top end of the fixing seat (17) is fixed to the side wall of the housing (12), the bottom end of the fixing seat (17) is protruding and provided with two connecting pins (18), the sliding plate (21) is provided with two second connecting holes (25) for the connecting pins (18) to extend into, a positioning plate (27) is provided between the sliding seat (24) and the sliding plate (21), a protrusion (28) is provided at the bottom of the positioning plate (27), a positioning piece is fixed on the top surface of the bottom plate (22), the positioning piece is located between the two protrusions (28), the two protrusions (28) can approach each other and abut against the positioning piece under the drive of the compression spring, and the positioning piece can prevent the two sliding plates (21) from contacting each other.