Butt joint mechanism for valve body and valve cover

Abstract

The utility model relates to the technical field of valve bodies, in particular to a valve body and valve cover butt joint mechanism which comprises a crossing frame, a sliding block in sliding connection with a guide groove formed in the crossing frame, and a driving piece used for driving the sliding block to move transversely. The valve body and valve cover butt joint mechanism further comprises a first telescopic cylinder vertically fixed to the bottom of the sliding block, a round grabbing disc rotationally arranged at the output end of the first telescopic cylinder and a driving part arranged at the output end of the first telescopic cylinder, and the driving part is used for driving the round grabbing disc to rotate. When the round grabbing disc is pushed downwards by the first telescopic cylinder, the driving part is controlled to drive the round grabbing disc to rotate, so that bolt holes in a path valve cover or a valve body can be efficiently and accurately inserted into the bolt holes in the valve cover or the valve body under the action of gravity when the inserting rod rotates in the circumferential direction, and therefore, when the valve cover is grabbed and the valve cover and the valve body are in butt joint, the bolt holes in the path valve cover or the valve body can be effectively and accurately inserted into the bolt holes in the valve cover or the valve body. The efficiency of grabbing the valve cover is improved, and the precision and efficiency of butt joint of the valve cover and the valve body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, in particular to a valve body and valve cover docking mechanism. Background Art

[0002] Valves are pipeline accessories that control the opening and closing of pipelines, control the flow direction of conveyed media, and regulate and control related parameters of conveyed media. The main structure of a valve consists of a valve body and a valve cover. Some valves have a valve body and valve cover cast as one piece, while most valves have a valve body and valve cover separated.

[0003] Because the split valve body and bonnet are typically connected by flanges and secured with several bolts, a docking mechanism is required to align the bolt holes on the two and maintain relative stillness between the valve body and bonnet during assembly, facilitating subsequent bolting. However, existing body-bonnet docking mechanisms use grippers or suction cups to grasp the outer edge of the bonnet, requiring multiple circumferential alignment adjustments when aligning the bonnet with the bolt holes on the valve body, significantly impacting assembly efficiency. Utility Model Content

[0004] In view of this, the purpose of the present invention is to propose a valve body and valve cover docking mechanism to solve the problem that the method of grasping the outer edge of the valve cover by clamping claws or using suction cups to grasp it has a significant impact on the alignment efficiency of the subsequent screw holes on the valve body and valve cover.

[0005] Based on the above purpose, the utility model provides a valve body and valve cover docking mechanism, including a cross frame and a slider slidably connected to a guide groove provided on the cross frame, and a driving member for driving the slider to move laterally. The valve body and valve cover docking mechanism also includes:

[0006] A first telescopic cylinder is vertically fixed to the bottom of the sliding block.

[0007] The circular grabbing plate provided on the output end of the first telescopic cylinder is rotated.

[0008] A driving part is provided on the output end of the first telescopic cylinder, and the driving part is used to drive the circular grabbing plate to rotate.

[0009] A plurality of calibration pieces are provided on the circular gripping plate, and the calibration pieces are used to align the threaded holes on the valve cover and the valve body when the valve cover and the valve body are docked.

[0010] A fixing portion is provided at the bottom of the circular gripping plate, and the fixing portion is used to suck and fix the valve cover.

[0011] Preferably, the calibration pieces are evenly distributed on the circular gripping disc in the circumferential direction, and the calibration pieces correspond to the bolt holes on the valve cover or the valve body.

[0012] Preferably, the calibration part includes a threaded through-hole passing through the circular grabbing disc, a threaded sleeve is provided in the threaded through-hole, an inner through-hole is provided at the bottom of the threaded sleeve, and an insertion rod is slidably inserted in the inner through-hole.

[0013] Preferably, an oblique conical surface is provided on the bottom end of the insertion rod, and the insertion rod matches the bolt hole on the valve cover or the valve body.

[0014] Preferably, the fixing part includes a flat support block arranged at the bottom of the round grabbing plate, a plurality of suction cups are provided at the bottom of the flat support block, an inner ring groove is provided inside the flat support block, a connecting hole is provided between the inner ring groove and the inside of the suction cup, and an air suction pipe is provided between the inside of the inner ring groove and the outside of the flat support block.

[0015] Preferably, the suction pipe is arranged on the vertical surface of the flat supporting block along the radial direction of the circular grabbing plate, and one end of the suction pipe is connected to an air pump.

[0016] Preferably, the suction cups are evenly distributed on the flat support block along the circumferential direction, and the suction cups are located within a range enclosed by several of the calibration pieces.

[0017] Preferably, the fixing portion further comprises two second telescopic cylinders relatively fixed on the round grabbing plate, and the second telescopic cylinders are used to drive the flat supporting block to move up and down.

[0018] The beneficial effects of the utility model are as follows: when the first telescopic cylinder pushes down the circular grabbing plate, the utility model controls the driving part to drive the circular grabbing plate to rotate, so that when the insertion rod rotates circumferentially, it passes the bolt holes on the valve cover or the valve body, and can be efficiently and accurately inserted into the bolt holes on the valve cover or the valve body under the action of gravity, so as to improve the efficiency of grabbing the valve cover and connecting the valve cover and the valve body, and improve the accuracy and efficiency of connecting the valve cover and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 A partial three-dimensional diagram of the utility model Figure 1 ;

[0022] Figure 3 A partial three-dimensional diagram of the utility model Figure 2 ;

[0023] Figure 4 It is a three-dimensional schematic diagram of the calibration component in the present utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the fixing part in the utility model.

[0025] The following are marked in the figure:

[0026] 1. Cross frame; 2. Guide groove; 3. Slider; 4. Driving part; 5. First telescopic cylinder; 6. Round grab plate; 7. Driving part; 8. Calibration part; 81. Threaded through hole; 82. Threaded sleeve; 83. Inner through hole; 84. Insert rod; 9. Fixing part; 91. Second telescopic cylinder; 92. Flat support block; 93. Inner ring groove; 94. Suction cup; 95. Connecting hole; 96. Suction pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0029] like Figures 1 to 5 As shown, a valve body and valve cover docking mechanism includes a cross frame 1 and a slider 3 slidably connected to a guide groove 2 provided on the cross frame 1, a driving member 4 for driving the slider 3 to move laterally, the driving member 4 including a screw rod that rotates laterally in the guide groove, the screw rod being sleeved with a threaded hole and a threaded sleeve provided on the slider 3, and a servo motor for driving the screw rod to rotate. The valve body and valve cover docking mechanism also includes:

[0030] A first telescopic cylinder 5 is vertically fixed to the bottom of the slider 3 .

[0031] The circular grabbing plate 6 provided on the output end of the first telescopic cylinder 5 is rotated.

[0032] A driving part 7 is provided on the output end of the first telescopic cylinder 5. The driving part 7 includes a horizontal support plate fixed on the output end of the first telescopic cylinder 5. A driving motor is provided on the horizontal support plate. A rotating joint is provided between the top of the circular grabbing plate 6 and the output end of the first telescopic cylinder 5. A flat gear is provided on the rotating joint and the output end of the driving motor. The tooth surfaces of the two flat gears are meshed with each other, and the rotating joint is located at the bottom of the horizontal support plate. The driving part 7 is used to drive the circular grabbing plate 6 to rotate.

[0033] A plurality of calibration pieces 8 are provided on the circular gripping plate 6. The calibration pieces 8 are used to align the threaded holes on the valve cover and the valve body when the valve cover and the valve body are docked.

[0034] A fixing portion 9 is provided at the bottom of the circular gripping plate 6 and is used to suck and fix the valve cover.

[0035] With this design, the slider 3 can be driven to move horizontally and linearly by controlling the driving member 4, and the first telescopic cylinder 5 and the circular grabbing plate 6 can be driven to move synchronously, so that the circular grabbing plate 6 moves to the conveyor belt for conveying the valve cover. When the circular grabbing plate 6 is aligned with the valve cover up and down, the first telescopic cylinder 5 is controlled to extend and push the circular grabbing plate 6 down, and the driving part 7 is started synchronously, so that the circular grabbing plate 6 moves down and rotates circumferentially until the calibration member 8 is inserted into the bolt hole on the valve cover, and the driving part 7 is controlled to stop. As the first telescopic cylinder 5 continues to extend, until the fixing part 9 contacts the top of the valve cover, the fixing part 9 is started to fix the valve cover so as to lift the valve cover, and the driving member 4 is controlled again to drive the slider 3 to move toward the conveyor belt for conveying the valve body. In this process, Control the first telescopic cylinder 5 to retract and lift the valve cover toward the valve body until the circular grabbing plate 6 corresponds to the valve body, then repeat the steps of grabbing the valve cover so that the calibration part 8 is inserted into the bolt hole on the valve body, control the fixing part 9 to release the fixation of the valve cover, and synchronously control the driving part 7 to complete the docking operation of the valve body and the valve cover. In the above-mentioned process of grabbing the valve cover and docking the valve cover and the valve body, the two conveyor belts conveying the valve cover and the valve body will be in a stopped state, and the valve cover and the valve body are both located directly below the cross frame 1. The cross frame 1 spans above the two conveyor belts conveying the valve cover and the valve body, thereby improving the efficiency of grabbing the valve cover and the accuracy and efficiency of docking the valve cover and the valve body, so that the valve cover and the valve body can be efficiently and smoothly fixedly connected using bolts in the future.

[0036] like Figures 1 to 4 As shown, the calibration pieces 8 are evenly distributed on the circular gripping disc 6 in the circumferential direction, and the calibration pieces 8 correspond to the bolt holes on the valve cover or the valve body.

[0037] The calibration piece 8 includes a threaded through hole 81 passing through the circular gripping plate 6 , a threaded sleeve 82 is threadedly sleeved in the threaded through hole 81 , an inner through hole 83 is provided at the bottom of the threaded sleeve 82 , and an insertion rod 84 is slidably inserted into the inner through hole 83 .

[0038] The bottom end of the insert rod 84 is provided with an oblique cone surface, and the insert rod 84 matches the bolt hole on the valve cover or the valve body.

[0039] With such a design, in the process of the first telescopic cylinder 5 pushing down the circular grabbing plate 6, the circular grabbing plate 6 is driven to rotate circumferentially at a uniform speed by controlling the driving part 7, so that the insertion rod 84 can have a certain amount of contraction when contacting the top of the valve cover, so that the insertion rod 84 can be inserted into the corresponding bolt hole on the valve cover when continuing to move circumferentially, and the fixing part 9 can contact the top of the valve cover and fix the valve cover on the top of the circular grabbing plate 6, so as to facilitate the lifting of the valve cover to the valve body, thereby improving the grabbing efficiency of the valve cover, and when the valve cover corresponds to the valve body, repeat the above-mentioned operation steps, so that the insertion rod 84 can also be efficiently inserted into the bolt hole on the valve body, and when the insertion rod 84 is inserted into the bolt hole on the valve body, the driving part 7 and the fixing part 9 are controlled to stop, and then the first telescopic cylinder 5 is controlled to contract, so as to complete the docking of the valve body and the valve cover, thereby improving the efficiency and accuracy of the docking between the two, and avoiding misalignment between the two that affects the subsequent bolt fixing operation.

[0040] like Figure 2 、 Figure 3 and Figure 5 As shown, the fixing part 9 includes a flat support block 92 arranged at the bottom of the round grabbing plate 6, and a plurality of suction cups 94 are provided at the bottom of the flat support block 92. An inner ring groove 93 is provided inside the flat support block 92, and a connecting hole 95 is provided between the inner ring groove 93 and the inside of the suction cup 94. An air suction pipe 96 is provided between the inside of the inner ring groove 93 and the outside of the flat support block 92.

[0041] The suction pipe 96 is arranged on the vertical surface of the flat supporting block 92 along the radial direction of the circular grabbing plate 6, and one end of the suction pipe 96 is connected to an air pump.

[0042] The suction cups 94 are evenly distributed on the flat support block 92 along the circumferential direction, and the suction cups 94 are located within a range surrounded by several calibration pieces 8 .

[0043] When the insertion rod 84 is inserted into the bolt hole on the valve cover and the suction cup 94 contacts the top of the valve cover, the air pump is started to transport gas through the suction pipe 96, the inner ring groove 93, and the connecting hole 95 to create a negative pressure in the suction cup 94, so that the valve cover can be adsorbed and fixed on the bottom of the round grab plate 6, which is convenient for the subsequent lifting of the valve cover to the valve body.

[0044] like Figure 2 and Figure 3 As shown, the fixing portion 9 also includes two second telescopic cylinders 91 relatively fixed on the circular grabbing plate 6. The second telescopic cylinders 91 are used to drive the flat supporting block 92 to move up and down. With such a design, when the thickness of the valve cover is relatively small, the length of the insertion rod 84 exposed at the bottom of the circular grabbing plate 6 is the smallest, and there is a certain gap between the valve cover and the suction cup 94. The second telescopic cylinders 91 can be controlled to push the flat supporting block 92 and the suction cup 94 close to the valve cover, and complete the adsorption and fixing operation of the valve cover, thereby improving the scope of application.

[0045] Working principle: Control the driving member 4 to drive the slider 3 to move horizontally and linearly, and drive the first telescopic cylinder 5 and the circular grabbing plate 6 to move synchronously, so that the circular grabbing plate 6 moves to the conveyor belt for conveying the valve cover. When the circular grabbing plate 6 is aligned with the valve cover up and down, control the first telescopic cylinder 5 to extend and push down the circular grabbing plate 6, and synchronously start the driving part 7, so that the circular grabbing plate 6 moves downward and rotates circumferentially, so that there is a certain amount of contraction when the insertion rod 84 contacts the top of the valve cover, so that the insertion rod 84 can be inserted into the corresponding bolt hole on the valve cover when it continues to move circumferentially. After the insertion rod 84 is inserted into the corresponding bolt hole on the valve cover, control the driving part 7 to stop, and the first telescopic cylinder 5 continues to push down the circular grabbing plate 6 until the suction cup 94 contacts the top of the valve cover. Then control the first telescopic cylinder 5 to stop, and start the vacuum pump, through the suction pipe 96 and the inner ring groove 9 3. Gas is delivered through the connecting hole 95 to create a negative pressure in the suction cup 94 so that the valve cover can be adsorbed and fixed to the bottom of the circular grabbing plate 6. The first telescopic cylinder 5 is then controlled to contract and the circular grabbing plate and the valve cover are synchronously raised to a certain height. The driving member 4 is then controlled to drive the slider 3 to the top of the valve body. The above-mentioned operation steps are repeated again until the insertion rod 84 is inserted into the bolt hole on the valve body. The driving part 7 and the fixing part 9 are controlled to stop so that the valve cover falls on the valve body and the two are accurately docked, thereby improving the efficiency and accuracy of the valve cover grabbing and the docking of the valve cover and the valve body. In the above-mentioned process of the valve cover grabbing and the docking of the valve cover and the valve body, the two conveyor belts for conveying the valve cover and the valve body will be in a stopped state, and the valve cover and the valve body are both located directly below the cross frame 1, and the cross frame 1 spans above the two conveyor belts for conveying the valve cover and the valve body.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0047] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A valve body and valve cover docking mechanism, comprising a cross frame (1) and a slider (3) slidably connected to a guide groove (2) provided on the cross frame (1), and a driving member (4) for driving the slider (3) to move laterally, characterized in that: The valve body and valve cover docking mechanism also includes: a first telescopic cylinder (5) vertically fixed to the bottom of the slider (3); Rotating a circular grabbing plate (6) provided on the output end of the first telescopic cylinder (5); A driving portion (7) provided on the output end of the first telescopic cylinder (5), the driving portion (7) being used to drive the circular grabbing plate (6) to rotate; A plurality of calibration pieces (8) are provided on the circular gripping plate (6), and the calibration pieces (8) are used to align the threaded holes on the valve cover and the valve body when the valve cover and the valve body are docked; A fixing portion (9) is provided at the bottom of the circular gripping plate (6), and the fixing portion (9) is used for sucking and fixing the valve cover.

2. The valve body and valve cover docking mechanism according to claim 1, characterized in that: The calibration pieces (8) are evenly distributed on the circular gripping disc (6) in the circumferential direction, and the calibration pieces (8) correspond to the bolt holes on the valve cover or the valve body.

3. The valve body and valve cover docking mechanism according to claim 2, characterized in that: The calibration piece (8) comprises a threaded through hole (81) penetrating the circular gripping disc (6); a threaded sleeve (82) is threadedly sleeved in the threaded through hole (81); an inner through hole (83) is provided at the bottom of the threaded sleeve (82); and an insertion rod (84) is slidably inserted into the inner through hole (83).

4. The valve body and valve cover docking mechanism according to claim 3, characterized in that: The bottom end of the insert rod (84) is provided with an oblique cone surface, and the insert rod (84) matches the bolt hole on the valve cover or the valve body.

5. The valve body and valve cover docking mechanism according to claim 1, characterized in that: The fixing portion (9) comprises a flat support block (92) provided at the bottom of the circular grabbing plate (6); a plurality of suction cups (94) are provided at the bottom of the flat support block (92); an inner ring groove (93) is provided in the flat support block (92); a connecting hole (95) is provided between the inner ring groove (93) and the inside of the suction cups (94); and an air suction pipe (96) is provided between the inside of the inner ring groove (93) and the outside of the flat support block (92).

6. The valve body and valve cover docking mechanism according to claim 5, characterized in that: The suction pipe (96) is arranged on the vertical surface of the flat support block (92) along the radial direction of the round grabbing plate (6), and one end of the suction pipe (96) is connected to an air pump.

7. The valve body and valve cover docking mechanism according to claim 6, characterized in that: The suction cups (94) are evenly distributed on the flat support block (92) along the circumferential direction, and the suction cups (94) are located within the range enclosed by a plurality of the calibration pieces (8).

8. The valve body and valve cover docking mechanism according to claim 7, characterized in that: The fixing portion (9) further comprises two second telescopic cylinders (91) fixed relatively to the circular gripping plate (6), wherein the second telescopic cylinders (91) are used to drive the flat support block (92) to move up and down.

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