A clamping mechanism
By adopting a linkage-type gripper and a V-type bearing guide rail design, the problem of powder overflow obstruction in the slider-type clamping mechanism is solved, achieving higher clamping reliability and lower maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN LVBO ENERGY EQUIP CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing fire extinguisher filling process, the slider clamping mechanism is easily obstructed by powder overflow, resulting in poor movement, requiring frequent replacement or maintenance, which is costly.
It adopts a linkage-type gripper structure combined with a V-shaped bearing guide rail design. The gripper opening and closing slider rolls on the V-shaped protrusion through the V-shaped bearing to prevent powder from entering. The clamping distance is adjustable, and the bearing guide rail replaces the slider rail contact.
It improves the tightness and reliability of clamping, reduces replacement and maintenance costs, and avoids the impact of powder on the mechanism.
Smart Images
Figure CN224393135U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire extinguisher filling and processing, and specifically relates to an opening and closing clamping mechanism. Background Technology
[0002] Fire extinguisher filling is mainly divided into coarse filling and fine filling. During the filling process, it is difficult to avoid powder overflow. The filling process requires clamping and fixing the bottle and clamping and transferring it. The mechanism used is a slider structure. However, the slider structure will be filled with overflowing powder. Over time, the slider movement will be obstructed and it will become unusable, requiring the whole thing to be replaced or repaired. Utility Model Content
[0003] In view of the shortcomings described in the prior art, the present invention provides an opening and closing clamping mechanism.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A clamping mechanism includes a reciprocating moving structure, a clamping jaw opening and closing base plate, and two clamping jaw structures. Each clamping jaw structure includes a clamping jaw connecting rod, a clamping jaw opening and closing slider, a clamping jaw opening and closing slide rail, and a clamping jaw. One end of the clamping jaw connecting rod is hinged to a moving part of the reciprocating moving structure; the other end of the clamping jaw connecting rod is hinged to the clamping jaw opening and closing slider, and the clamping jaw is fixed to the clamping jaw opening and closing slider; the clamping jaw opening and closing slider is slidably disposed on the clamping jaw opening and closing slide rail, and the clamping jaw opening and closing slide rail is mounted on the clamping jaw opening and closing base plate; the clamping jaws of the two clamping jaw structures are symmetrical about the axis of the reciprocating moving structure. The clamping jaws using the mechanical structure can be replaced individually, and the clamping distance can be changed. Compared with the cylinder clamping jaw structure, the clamping is tighter and the replacement and maintenance costs are lower.
[0006] In a preferred embodiment of this invention, the gripper opening / closing slider has two bearing rows on its end face facing the gripper opening / closing slide rail. The gripper opening / closing slider is mounted on the gripper opening / closing slide rail via the two bearing rows. Each bearing row includes at least one V-shaped bearing capable of in-situ rotation. The gripper opening / closing slide rail has a V-shaped protrusion that contacts the V-shaped annular groove end face of the V-shaped bearing. The V-shaped bearing cooperates with the V-shaped protrusion, and the V-shaped protrusion is engaged in the V-shaped annular groove. When the gripper opening / closing slider is moved under force, the V-shaped bearing rolls along the V-shaped protrusion, preventing powder from entering and eliminating the original large end face contact of the slider and slide rail.
[0007] As a preferred embodiment of this utility model, a hinge shaft is provided at the moving part of the reciprocating moving structure, and the gripper connecting rods of the two gripper structures are hinged on the same hinge shaft, and the gripper connecting rods pass through the clearance hole of the gripper opening and closing substrate.
[0008] As a preferred embodiment of this utility model, the opening and closing slide rails of the two gripper structures are parallel.
[0009] As a preferred embodiment of this utility model, the direction of the gripper opening and closing slide rail is perpendicular to the reciprocating movement direction of the moving part of the reciprocating moving structure.
[0010] In a preferred embodiment of this invention, a guide rod is provided between the reciprocating moving structure and the gripper opening and closing base plate, and the moving part of the reciprocating moving structure slides along the guide rod. The guide rod ensures the symmetry of the movement of the two gripper linkages and avoids offset.
[0011] As a preferred embodiment of this utility model, the reciprocating moving structure includes a reciprocating moving power component and a moving plate. The actuating part of the reciprocating moving power component is connected to the moving plate, and a guide rod is disposed through the moving plate. The end face of the moving plate away from the reciprocating moving power component is provided with a hinge shaft for the gripper connecting rod to hinge.
[0012] As a preferred embodiment of this utility model, it further includes a first translation structure, which comprises a translation base plate, a translation force component, and a translation track. The translation base plate is connected to the gripper opening and closing base plate, and the moving part of the translation force component is connected to the translation base plate. The translation force component is parallel to the reciprocating motion force component. Two bearing rows are provided on the lower end face of the translation base plate, and the translation base plate is mounted on the translation track via the two bearing rows. Each bearing row includes at least one V-shaped bearing capable of in-situ rotation. A V-shaped protrusion is provided on the translation track, and the V-shaped protrusion contacts the V-shaped annular groove end face of the V-shaped bearing. The first translation structure can drive the reciprocating motion structure, the gripper opening and closing structure, and the two gripper structures to move closer to or further away from the bottle body, changing the distance between them.
[0013] As a preferred embodiment of this utility model, it further includes a second translation structure. The first and second translation structures are perpendicular to each other. The second translation structure includes a base plate, a second moving member, and a second translation track. The translation force member and the translation track are mounted on the base plate. Two sets of bearing structures are spaced apart on the lower end face of the base plate. Each set of bearing structures corresponds to one second translation track. Each set of bearing structures includes two bearing rows, and each bearing row includes at least one V-shaped bearing capable of rotating in place. V-shaped protrusions are provided on the second translation tracks, and the V-shaped protrusions contact the V-shaped annular groove end face of the V-shaped bearings. The second translation structure is used to change the overall position of the first translation structure and the structure mounted on it. If the first translation structure changes the distance in the X direction between itself and the bottle, then the second translation structure changes the distance in the Y direction between itself and the bottle.
[0014] This utility model uses a linkage-type gripper opening and closing mechanism to provide a gripper structure with a higher degree of clamping. Furthermore, the gripper opening and closing mechanism uses a bearing guide rail type matching structure, which is not afraid of dust in the usage environment. The first translation structure and the second translation structure used both use a bearing guide rail type structure, completely replacing the original slider rail type matching structure. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the structure of the substrate for opening and closing the grippers of this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of the present invention with a first translational structure. Figure 1 .
[0019] Figure 4 This is a schematic diagram of the structure of the present invention with a first translational structure. Figure 2 .
[0020] Figure 5 This is a schematic diagram of the present invention with a second translation structure.
[0021] Figure 6 This is a schematic diagram of the second translation structure of this utility model. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] An opening and closing clamping mechanism, such as Figure 1-2 As shown, it includes a reciprocating moving structure 1, a gripper opening and closing base plate 2, and two gripper structures 3.
[0024] The reciprocating moving structure 1 includes a reciprocating moving power component 11 and a moving plate 12. The reciprocating moving power component 11 is a cylinder. The piston rod end of the cylinder is connected to the moving plate 12. The moving plate 12 moves back and forth under the drive of the cylinder piston rod. The end face of the moving plate 12 away from the reciprocating moving power component 11 is provided with a hinge shaft for the gripper connecting rod to hinge.
[0025] The direction of cylinder extension and retraction is defined as the X direction, the direction perpendicular to the X direction is defined as the Y direction, and the direction perpendicular to the Y direction is defined as the Z direction.
[0026] The two gripper structures are identical in structure, differing only in their installation positions. Each gripper structure 3 includes a gripper connecting rod 31, a gripper opening and closing slider 32, a gripper opening and closing slide rail 33, and a gripper 34.
[0027] For the first gripper structure, one end of the gripper connecting rod 31 is hinged to a hinge shaft in the Z direction. The other end of the gripper connecting rod 31 passes through a clearance hole on the gripper opening / closing base plate 2 and is hinged to the gripper opening / closing slider 32. This hinge is also achieved through a hinge post. The gripper 34 is fixed to the gripper opening / closing slider 32. The gripper opening / closing slide rail 33 is mounted on the gripper opening / closing base plate 2 along the Y direction.
[0028] Two bearing rows are provided on the end face of the gripper opening and closing slider 32 facing the gripper opening and closing slide rail 33. In this embodiment, the two bearing rows are distributed in the Z direction, that is, one bearing row is located at the upper part of the gripper opening and closing slide rail 33 and the other is located at the lower part of the gripper opening and closing slide rail 33; the gripper opening and closing slider 32 is mounted on the gripper opening and closing slide rail 33 through the two bearing rows.
[0029] Each bearing row includes at least one V-bear 5 that can rotate in situ. The V-bear 5 is mounted on the gripper opening and closing slider via a fixed shaft, and the V-bear is able to rotate about the fixed shaft.
[0030] The gripper opening and closing slide rail 33 is equipped with V-shaped protrusions 6. Since there are two bearing rows, there are also two V-shaped protrusions, distributed in the Z direction. The V-shaped protrusions 6 contact the V-shaped annular groove end face of the V-bearing 5. The V-bearing and the V-shaped protrusions cooperate, and the V-shaped protrusions are engaged in the V-shaped annular grooves. When the gripper opening and closing slider is moved by force, the V-bearing rolls along the V-shaped protrusions, preventing powder from entering and eliminating the original slider slide rail type large end face contact.
[0031] For the other gripper structure, one end of the gripper connecting rod 31 is hinged to the hinge shaft and located above the hinge of the other gripper connecting rod. The other end of the gripper connecting rod 31 also passes through the clearance hole of the gripper opening and closing base plate 2 and is attached to the gripper opening and closing slider 32. The gripper 34 is fixed on the gripper opening and closing slider 32. The two grippers are arranged opposite each other and move closer or further away along the Y direction.
[0032] The gripper opening and closing slider 32 and gripper opening and closing slide rail of the gripper structure are completely identical to the gripper opening and closing slider 32 and gripper opening and closing slide rail of the first gripper structure, except that the installation position is above the gripper opening and closing slider 32 and gripper opening and closing slide rail of the first gripper structure.
[0033] To ensure that the two gripper linkages move symmetrically and synchronously when moving in the X direction, guide rods 4 are provided between the gripper opening and closing base plate 2 and the cylinder body. In this embodiment, four guide rods are used as an example, and the two diagonally positioned guide rods 4 are respectively set through the moving plate 12, so that the moving plate 12 moves along the guide rods when moving in the X direction. The driven gripper linkages rotate around a unified hinge axis. Under the action of the bearing guide rail, the two grippers move closer or further apart, realizing the clamping and releasing of the bottle.
[0034] To change the distance from the bottle in the X direction, a first translation structure can be set up, such as... Figure 3 and 4 As shown, the first translation structure includes a translation base plate 41, a translation force member 42, and a translation track 43. The translation base plate 41 is connected to the gripper opening and closing base plate 2. The moving part of the translation force member 42 is connected to the translation base plate 41. The translation force member is preferably a cylinder. The translation force member 42 is parallel to the reciprocating motion power member 11, that is, it is arranged along the X direction. More than one reciprocating motion structure 1 and two gripper structures driven by it can be provided on the gripper opening and closing base plate. One reciprocating motion structure 1 and two gripper structures constitute a complete clamping structure.
[0035] Two bearing rows are provided on the lower end face of the translation base plate 41, and the bearing rows are arranged in the X direction. The translation base plate 41 is mounted on the translation track 43 by the two bearing rows. Each bearing row includes at least one V-shaped bearing 5 that can rotate in place. A V-shaped protrusion 6 is provided on the translation track 43, and the V-shaped protrusion 6 contacts the V-shaped annular groove end face of the V-shaped bearing 5. The first translation structure can drive the reciprocating moving structure, the gripper opening and closing structure, and the two gripper structures to move closer to or further away from the bottle body, changing the distance between them.
[0036] To change the distance from the bottle in the Y direction, such as Figure 5 and 6 As shown, a second translation structure can also be provided. The first and second translation structures are set in perpendicular directions. The second translation structure includes a base plate 71, a second moving member 72, and a second translation track 73. The translation force member 42 and the translation track 43 are mounted on the base plate 71. Two sets of bearing structures are spaced apart on the lower end face of the base plate 71. Each set of bearing structures corresponds to a second translation track 73. The second translation track 73 is set along the Y direction. Each set of bearing structures includes two bearing rows. Each bearing row includes at least one V-shaped bearing 5 that can rotate in place. A V-shaped protrusion 6 is provided on the second translation track 73. The V-shaped protrusion 6 contacts the V-shaped annular groove end face of the V-shaped bearing 5.
[0037] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An opening and closing clamping mechanism comprising a reciprocating structure (1), a clamping jaw opening and closing base plate (2) and two clamping jaw structures (3), characterized in that: Each of the gripper structures (3) includes a gripper link (31), a gripper opening and closing slider (32), a gripper opening and closing slide rail (33), and a gripper (34); one end of the gripper link (31) is hinged to the moving part of the reciprocating moving structure (1); the other end of the gripper link (31) is hinged to the gripper opening and closing slider (32), and the gripper (34) is fixed on the gripper opening and closing slider (32); the gripper opening and closing slider (32) is slidably disposed on the gripper opening and closing slide rail (33), and the gripper opening and closing slide rail (33) is mounted on the gripper opening and closing base plate (2); the gripper links (31) of the two gripper structures (3) are symmetrical about the axis of the reciprocating moving structure (1).
2. The opening and closing clamping mechanism according to claim 1, characterized in that: The jaw opening and closing slider (32) is provided with two bearing rows on the end face of the jaw opening and closing slide rail (33), and the jaw opening and closing slider (32) is mounted on the jaw opening and closing slide rail (33) through the two bearing rows; each bearing row includes at least one V-type bearing (5) that can rotate in place, and the jaw opening and closing slide rail (33) is provided with a V-type protrusion (6), which contacts the V-type annular groove end face of the V-type bearing (5).
3. The opening and closing clamping mechanism according to claim 2, characterized in that: A hinge shaft is provided at the moving part of the reciprocating moving structure (1), and the gripper connecting rods (31) of the two gripper structures are hinged on the same hinge shaft, and the gripper connecting rods (31) pass through the clearance hole of the gripper opening and closing base plate (2).
4. The opening and closing clamping mechanism according to claim 3, characterized in that: The jaw opening and closing slide rails (33) of the two jaw structures (3) are parallel.
5. The opening and closing clamping mechanism according to claim 3, characterized in that: The direction of the gripper opening and closing slide rail (33) is perpendicular to the reciprocating movement direction of the moving part of the reciprocating movement structure (1).
6. The opening and closing clamping mechanism according to claim 5, characterized in that: A guide rod (4) is provided between the reciprocating moving structure (1) and the gripper opening and closing base plate (2), and the moving part of the reciprocating moving structure (1) slides along the guide rod.
7. The opening and closing clamping mechanism according to claim 6, characterized in that: The reciprocating moving structure (1) includes a reciprocating moving power component (11) and a moving plate (12). The moving part of the reciprocating moving power component (11) is connected to the moving plate (12), and the guide rod (4) is set through the moving plate (12). The end face of the moving plate (12) away from the reciprocating moving power component (11) is provided with a hinge shaft for the gripper connecting rod to hinge.
8. The opening and closing clamping mechanism according to claim 6 or 7, characterized in that: It also includes a first translation structure, which includes a translation base plate (41), a translation force member (42), and a translation track (43). The translation base plate (41) is connected to the gripper opening and closing base plate (2). The moving part of the translation force member (42) is connected to the translation base plate (41). The translation force member (42) is parallel to the reciprocating motion force member (11). Two bearing rows are provided on the lower end face of the translation base plate (41). The translation base plate (41) is mounted on the translation track (43) through the two bearing rows. Each bearing row includes at least one V-shaped bearing (5) that can rotate in place. A V-shaped protrusion (6) is provided on the translation track (43). The V-shaped protrusion (6) contacts the V-shaped annular groove end face of the V-shaped bearing (5).
9. The opening and closing clamping mechanism according to claim 8, characterized in that: It also includes a second translation structure. The first translation structure and the second translation structure are set in a perpendicular direction. The second translation structure includes a base plate (71), a second moving part (72), and a second translation track (73). The translation force part (42) and the translation track (43) are mounted on the base plate (71). Two sets of bearing structures are spaced apart on the lower end face of the base plate (71). Each set of bearing structures corresponds to a second translation track (73). Each set of bearing structures includes two bearing rows. Each bearing row includes at least one V-type bearing (5) that can rotate in place. A V-type protrusion (6) is provided on the second translation track (73). The V-type protrusion (6) contacts the V-type annular groove end face of the V-type bearing (5).