Clamping and positioning mechanism

Abstract

The utility model relates to the technical field of pilot valve assembly equipment, and provides a clamping and positioning mechanism which comprises a positioning workbench, a fixed positioning block and a movable positioning block. And the fixed positioning block is fixedly connected to the positioning workbench. And the movable positioning block is movably connected to the positioning workbench. A positioning and clamping area is formed between the fixed positioning block and the movable positioning block and is used for placing a valve body of the pilot valve. In the assembling process of the pilot valve, the valve body of the pilot valve is placed in the positioning and clamping area, the position of the movable positioning block is adjusted so that the valve body of the pilot valve can be clamped between the fixed positioning block and the movable positioning block, and then the plug assembly is assembled and tightened. Through the structural arrangement, the valve body assembling and positioning accuracy of the pilot valve can be improved, and then the assembling efficiency of the pilot valve is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pilot valve assembly equipment, and in particular to a clamping and positioning mechanism. Background Technology

[0002] The pilot valve for mining applications is a core component of electro-hydraulic directional valves. When assembling a pilot valve, the plug assembly needs to be threadedly connected to the valve body. In existing technology, the valve body is typically manually secured, and then the threaded assembly is tightened. This method results in poor positioning accuracy, affecting the assembly efficiency of the pilot valve. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a clamping and positioning mechanism.

[0004] The present invention provides a clamping and positioning mechanism, comprising: a positioning worktable; a fixed positioning block, the fixed positioning block being fixedly connected to the positioning worktable; and a movable positioning block, the movable positioning block being movably connected to the positioning worktable; wherein, a positioning clamping area is formed between the fixed positioning block and the movable positioning block, the positioning clamping area being used to place the valve body of a pilot valve.

[0005] According to the present invention, a clamping and positioning mechanism further includes a worktable sliding drive mechanism, which is connected to the positioning worktable and is used to drive the positioning worktable to slide.

[0006] According to the present invention, a clamping and positioning mechanism is provided on the positioning worktable, the through hole is located in the positioning and clamping area, and the through hole is adapted to allow the screw plug assembly of the pilot valve to pass through so as to connect with the valve body of the pilot valve.

[0007] According to the present invention, a clamping and positioning mechanism is provided in which the through hole is adapted for the two sets of screw plug assemblies of the pilot valve to pass through.

[0008] According to the clamping and positioning mechanism provided by this utility model, the fixed positioning block includes: a fixed block, which is fixedly connected to the positioning worktable; and a first positioning groove, which is disposed in the fixed block. The movable positioning block includes: a movable block, which is slidably connected to the positioning worktable; and a second positioning groove, which is disposed in the movable block.

[0009] The first positioning groove and the second positioning groove are capable of positioning and clamping the valve body diagonally opposite the pilot valve.

[0010] According to the present invention, a clamping and positioning mechanism is provided, which further includes a positioning adjustment drive mechanism, which is connected to the movable block and is used to drive the movable block to slide so as to adjust the size of the positioning clamping area.

[0011] According to the present invention, a clamping and positioning mechanism is provided, wherein the positioning adjustment and driving mechanism includes: an adjustment guide rail disposed on the positioning worktable, the movable block being slidably connected to the adjustment guide rail; and an adjustment driving cylinder connected to the movable block for driving the movable block to slide along the adjustment guide rail.

[0012] According to the present invention, a clamping and positioning mechanism is provided, wherein the worktable sliding drive mechanism includes: a worktable sliding guide rail, wherein the positioning worktable is slidably connected to the worktable sliding guide rail; and a worktable sliding cylinder, wherein the worktable sliding cylinder is connected to the positioning worktable and is used to drive the positioning worktable to slide along the worktable sliding guide rail.

[0013] According to the present invention, a clamping and positioning mechanism is provided, which further includes a clamping detection device for detecting the clamping and positioning status between the fixed positioning block and the valve body of the pilot valve, and between the movable positioning block and the valve body of the pilot valve.

[0014] According to the present invention, a clamping and positioning mechanism is provided, wherein the clamping detection device includes: a photoelectric proximity sensor, the photoelectric proximity sensor being installed on the movable block; and a stroke sensor, the stroke sensor being installed on the adjusting drive cylinder for detecting the stroke of the adjusting drive cylinder.

[0015] The clamping and positioning mechanism provided by this utility model includes a positioning worktable, a fixed positioning block, and a movable positioning block. The fixed positioning block is fixedly connected to the positioning worktable. The movable positioning block is movably connected to the positioning worktable. A positioning clamping area is formed between the fixed positioning block and the movable positioning block, and the positioning clamping area is used to place the valve body of the pilot valve.

[0016] During the pilot valve assembly process, the pilot valve body is placed within the positioning and clamping area. The position of the movable positioning block is adjusted so that the pilot valve body is clamped between the fixed positioning block and the movable positioning block. Then, the screw plug assembly is assembled and tightened. This structural design improves the positioning accuracy of the pilot valve body assembly, thereby increasing the assembly efficiency of the pilot valve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the clamping and positioning mechanism provided by this utility model.

[0019] Reference numerals: 100, positioning worktable; 110, perforation; 120, worktable sliding guide rail; 130, worktable sliding cylinder; 200, fixed positioning block; 210, fixed block; 220, first positioning groove; 300, movable positioning block; 310, movable block; 320, second positioning groove; 410, adjusting guide rail; 420, adjusting drive cylinder; 510, photoelectric proximity sensor; 520, stroke sensor; 600, screw plug assembly. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, to make the objectives, technical solutions, and advantages of the present invention clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The following is combined with Figure 1 This invention describes a clamping and positioning mechanism provided in an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.

[0026] An embodiment of this utility model provides a clamping and positioning mechanism, such as... Figure 1 As shown, the clamping and positioning mechanism includes: a positioning worktable 100; a fixed positioning block 200, which is fixedly connected to the positioning worktable 100; and a movable positioning block 300, which is movably connected to the positioning worktable 100.

[0027] The fixed positioning block 200 and the movable positioning block 300 form a positioning clamping area, which is used to place the valve body of the pilot valve.

[0028] During the pilot valve assembly process, the pilot valve body is placed within the positioning and clamping area. The position of the movable positioning block 300 is adjusted so that the pilot valve body is clamped between the fixed positioning block 200 and the movable positioning block 300. Then, the screw plug assembly 600 is assembled and tightened. This structural design improves the positioning accuracy of the pilot valve body assembly, thereby increasing the assembly efficiency of the pilot valve.

[0029] Furthermore, in this clamping and positioning mechanism, since the movable fixing block 210 can slide on the positioning worktable 100, the positioning clamping area is an adjustable area, thereby enabling the clamping and positioning mechanism to be suitable for the assembly of pilot valves of different sizes.

[0030] In one embodiment of this utility model, the clamping and positioning mechanism further includes a worktable sliding drive mechanism. The worktable sliding drive mechanism is connected to the positioning worktable 100 and is used to drive the positioning worktable 100 to slide.

[0031] Furthermore, in one embodiment of the present invention, the worktable sliding drive mechanism includes: a worktable sliding guide rail 120, wherein the positioning worktable 100 is slidably connected to the worktable sliding guide rail 120; and a worktable sliding cylinder 130, which is connected to the positioning worktable 100 and is used to drive the positioning worktable 100 to slide along the worktable sliding guide rail 120.

[0032] Specifically, such as Figure 1 As shown, a positioning worktable 100 is slidably connected to the worktable sliding guide rail 120. A worktable sliding cylinder 130 is connected to the positioning worktable 100; for example, the worktable sliding cylinder 130 may include, but is not limited to, an electric cylinder. The worktable sliding cylinder can drive the positioning worktable 100 to slide along the worktable sliding guide rail 120, thereby causing the fixed positioning block 200 and the movable positioning block 300 on the positioning worktable 100 to move as a whole, to adjust the position of the pilot valve to be assembled. For example, multiple sets of screw plug assemblies 600 are assembled on the valve body of the pilot valve. A tightening device is provided on the assembly line, which can adjust the position of the positioning worktable 100 through the worktable sliding cylinder 130, thereby changing the position of the pilot valve body, so that multiple sets of screw plug assemblies 600 can be assembled using one tightening device, saving on assembly equipment costs.

[0033] In one embodiment of the present invention, a through hole 110 is provided on the positioning worktable 100. The through hole 110 is located in the positioning clamping area and is adapted for the screw plug assembly 600 of the pilot valve to pass through so as to connect with the valve body of the pilot valve.

[0034] Furthermore, in one embodiment of the present invention, the perforation 110 is adapted for the screw plug assemblies 600 of the two sets of pilot valves to pass through.

[0035] For example, such as Figure 1 As shown, a long strip-shaped through hole 110 is provided on the positioning worktable 100. This long strip-shaped through hole 110 is suitable for positioning and inserting two sets of screw plug assemblies 600 of the pilot valve body. That is, when assembling the pilot valve, the two sets of screw plug assemblies 600 are first positioned and inserted into the through hole 110, then the valve body is placed in the corresponding positioning and clamping area, and clamped and fixed using the movable positioning block 300 and the fixed positioning block 200. Finally, the screw plug assembly 600 is tightened to the valve body using a tightening device.

[0036] In one embodiment of the present invention, the fixed positioning block 200 includes: a fixed block 210, which is fixedly connected to the positioning worktable 100; and a first positioning groove 220 disposed on the fixed block 210. The movable positioning block 300 includes: a movable block 310, which is slidably connected to the positioning worktable 100; and a second positioning groove 320 disposed on the movable block 310.

[0037] The first positioning groove 220 and the second positioning groove 320 can be positioned and clamped to the diagonal of the valve body of the pilot valve.

[0038] For example, such as Figure 1 As shown, the pilot valve body has a cuboid structure, and both the first positioning groove 220 and the second positioning groove 320 are L-shaped positioning grooves. The first positioning groove 220 and the second positioning groove 320 are respectively positioned at opposite corners of the valve body. This improves the positioning reliability of the pilot valve body.

[0039] In one embodiment of the present invention, the clamping and positioning mechanism further includes a positioning adjustment drive mechanism, which is connected to the movable block 310 and is used to drive the movable block 310 to slide so as to adjust the size of the positioning and clamping area.

[0040] Furthermore, in one embodiment of this utility model, the positioning adjustment drive mechanism includes: an adjustment guide rail 410, which is disposed on the positioning worktable 100, and a movable block 310 is slidably connected to the adjustment guide rail 410; and an adjustment drive cylinder 420, which is connected to the movable block 310 and is used to drive the movable block 310 to slide along the adjustment guide rail 410.

[0041] like Figure 1 As shown, an adjusting guide rail 410 is provided on the positioning worktable 100, and a movable block 310 is slidably connected to the adjusting guide rail 410. An adjusting drive cylinder 420 is connected to the movable block 310 to drive the movable block 310 to slide along the adjusting guide rail 410 towards or away from the fixed block 210. This adjusts the size of the positioning clamping area and enables the clamping of the pilot valve body. The adjusting drive cylinder 420 includes, but is not limited to, an electric cylinder.

[0042] In one embodiment of the present invention, the clamping and positioning mechanism further includes a clamping detection device, which is used to detect the clamping and positioning status between the fixed positioning block 200 and the valve body of the pilot valve, and between the movable positioning block 300 and the valve body of the pilot valve.

[0043] Specifically, in one embodiment of this utility model, the clamping detection device includes: a photoelectric proximity sensor 510, which is mounted on the movable block 310; and a stroke sensor 520, which is mounted on the adjusting drive cylinder 420 and is used to detect the stroke of the adjusting drive cylinder 420.

[0044] The photoelectric proximity sensor 510 can detect the positioning and clamping state between the pilot valve body and the fixed block 210, and the stroke sensor 520 can detect the stroke of the regulating drive cylinder 420. Based on the pilot valve body stroke, the positioning and clamping state between the movable block 310 and the pilot valve body can be determined. This improves the clamping and positioning accuracy and reliability of the clamping and positioning mechanism.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping positioning mechanism, characterized by, The clamping positioning mechanism comprises: A positioning workbench (100); A fixed positioning block (200) fixedly connected to the positioning workbench (100); A movable positioning block (300) movably connected to the positioning workbench (100); Wherein, the fixed positioning block (200) and the movable positioning block (300) form a positioning clamping area, and the positioning clamping area is used for placing a valve body of a pilot valve.

2. The chucking positioning mechanism of claim 1, wherein, The clamping positioning mechanism further comprises: A workbench sliding drive mechanism connected to the positioning workbench (100) and used for driving the positioning workbench (100) to slide.

3. The chucking positioning mechanism of claim 2, wherein, The positioning workbench (100) is provided with a through hole (110) located in the positioning clamping area and adapted for a screw plug assembly (600) of the pilot valve to pass through to be connected with the valve body of the pilot valve.

4. The chucking positioning mechanism of claim 3, wherein, The through hole (110) is adapted for two groups of screw plug assemblies (600) of the pilot valve to pass through.

5. The chucking positioning mechanism according to any one of claims 1 to 4, characterized in that, The fixed positioning block (200) comprises: A fixed block (210) fixedly connected to the positioning workbench (100); A first positioning groove (220) provided on the fixed block (210); The movable positioning block (300) comprises: A movable block (310) movably connected to the positioning workbench (100); A second positioning groove (320) provided on the movable block (310); Wherein, the first positioning groove (220) and the second positioning groove (320) can be positioned and clamped to opposite corners of the valve body of the pilot valve.

6. The chucking positioning mechanism of claim 5, wherein, The clamping positioning mechanism further comprises: A positioning adjustment drive mechanism connected to the movable block (310) and used for driving the movable block (310) to slide to adjust the size of the positioning clamping area.

7. The chucking positioning mechanism of claim 6, wherein, The positioning adjustment drive mechanism comprises: An adjustment guide rail (410) provided on the positioning workbench (100), and the movable block (310) is slidably connected to the adjustment guide rail (410); An adjustment drive cylinder (420) connected to the movable block (310) and used for driving the movable block (310) to slide along the adjustment guide rail (410).

8. The chucking positioning mechanism of claim 2, wherein, The workbench sliding drive mechanism comprises: A workbench sliding guide rail (120), and the positioning workbench (100) is slidably connected to the workbench sliding guide rail (120); A workbench sliding cylinder (130) connected to the positioning workbench (100) and used for driving the positioning workbench (100) to slide along the workbench sliding guide rail (120).

9. The chucking positioning mechanism of claim 7, wherein, The clamping positioning mechanism further comprises: The clamping detection device is used for detecting the clamping positioning state between the fixed positioning block (200) and the valve body of the pilot valve and between the movable positioning block (300) and the valve body of the pilot valve.

10. The chucking positioning mechanism of claim 9, wherein, The clamping detection device comprises: A photoelectric proximity sensor (510) is installed on the movable block (310); A stroke sensor (520) is installed on the adjusting driving cylinder (420) and is used for detecting the stroke of the adjusting driving cylinder (420).

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