Butterfly plate pressing machine

Abstract

The utility model discloses a butterfly plate pressing machine, which relates to the technical field of valve assembly and comprises a bearing table, and a valve body of a butterfly valve is positioned on the bearing table; a valve body positioning and clamping device and a butterfly plate limiting and correcting device are arranged on the bearing table; the valve body positioning and clamping device comprises a valve body positioning device and a valve body clamping device, the valve body positioning device comprises a positioning sleeve and a limiting rod, the positioning sleeve is inserted into the valve body, and after the valve body is rotated, the outer side of a valve shaft hole of the valve body abuts against the limiting rod; the valve body clamping device comprises clamping claws which are oppositely arranged, the clamping claws are installed on the bearing table in a sliding mode, driving devices are arranged on the two clamping claws, and the driving devices drive the two clamping claws to move oppositely and oppositely; the butterfly plate limiting and correcting device comprises a groove formed in the top of the positioning sleeve, and after the butterfly plate is pressed downwards in place, a protrusion on the outer side of a shaft hole of the butterfly plate is clamped into the groove. By arranging the valve body positioning and clamping device and the butterfly plate limiting and correcting device, a valve shaft hole of the valve body and a shaft hole of the butterfly plate are concentric.

Description

Technical Field

[0001] The utility model relates to the technical field of valve assembly, in particular to a butterfly plate press-fitting machine. Background Art

[0002] When assembling a butterfly valve, the butterfly plate needs to be pressed into the valve body, and it is necessary to ensure that the valve shaft hole of the valve body is concentric with the shaft hole of the butterfly plate to facilitate the subsequent insertion of the valve shaft. However, the existing press-fitting device does not have a positioning and clamping device. The operator places the butterfly plate on top of the valve body based on his own experience, and then presses the butterfly plate into the valve body through a pressure device. This operation method has the following problems: 1. During the pressing process of the butterfly plate, the valve shaft hole of the valve body and the shaft hole of the butterfly plate produce a certain position, resulting in eccentricity, which is not conducive to the subsequent installation of the valve shaft; 2. During the pressing process, the butterfly plate is easily over-pressed, which also causes the valve shaft hole of the valve body and the shaft hole of the butterfly plate to be eccentric. Utility Model Content

[0003] The utility model aims to provide a butterfly plate press machine, which realizes the concentricity of the valve shaft hole of the valve body and the shaft hole of the butterfly plate by arranging a valve body positioning clamping device and a butterfly plate limit correction device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a butterfly plate pressing machine, including a bearing platform, and the valve body of the butterfly valve is located on the bearing platform; a valve body positioning and clamping device and a butterfly plate limit correction device are arranged on the bearing platform; the valve body positioning and clamping device includes a valve body positioning device and a valve body clamping device, the valve body positioning device includes a positioning sleeve and a limit rod, the positioning sleeve is inserted into the valve body, and after the valve body is rotated, the outer side of the valve shaft hole of the valve body abuts against the limit rod; the valve body clamping device includes clamping claws arranged opposite to each other, the clamping claws are slidably mounted on the bearing platform, and a driving device is arranged on the two clamping claws, and the driving device drives the two clamping claws to move relative and opposite to each other, so as to clamp or loosen the valve body; the butterfly plate limit correction device includes a groove arranged on the top of the positioning sleeve, and when the butterfly plate is pressed down into place, the outer side protrusion of the shaft hole of the butterfly plate is inserted into the groove.

[0005] After adopting the above structure, by putting the valve body in the positioning sleeve and then rotating the valve body, the outer side of the valve shaft hole of the valve body abuts against the limit rod. At this time, it is guaranteed that the position of the valve shaft hole is stable and reliable each time the valve body is installed. Then, the two clamping claws are driven by the driving device to clamp the valve body, thereby realizing the clamping of the valve body and ensuring the accurate position of the valve shaft hole of the valve body each time; the butterfly plate is placed above the valve body, and the butterfly plate is pressed into the valve body by the pressure device. The bottom limit is achieved by setting the positioning sleeve to avoid the butterfly plate from being pressed too far down. By setting a groove on the positioning sleeve, the deviation correction of the butterfly plate is achieved to ensure that the valve shaft hole on the butterfly plate is concentric with the valve shaft hole of the valve body, thereby ensuring subsequent accuracy.

[0006] In order to improve the application range of the device and increase the adjustment range of the limit rod, the limit rod is installed on the bearing platform with an adjustable position.

[0007] In order to improve the application range of the device, different valve bodies can be applied by replacing the positioning sleeve, so the positioning sleeve can be detachably installed on the bearing platform.

[0008] In order to maintain the clamping stability and be suitable for valve bodies of various outer diameters, the clamping claws are V-shaped claws.

[0009] In order to ensure the synchronization of the clamping claws, the two clamping claws are connected to the same driving device through a transmission structure.

[0010] In order to reasonably layout and ensure the stability of the transmission structure, the transmission structure includes a fixed plate installed at the bottom of the bearing platform and sliding plates symmetrically arranged on both sides of the fixed plate. The fixed plate is fixed at the bottom of the bearing platform, and a turntable is rotatably installed on the fixed plate at the central axis position of the positioning sleeve; the two sliding plates are slidably installed at the bottom of the bearing platform and slide relative to or back to each other, and each sliding plate is installed with a clamping claw; a connecting rod is respectively hinged on the opposite sides of the turntable, and the other end of the connecting rod is hinged to the sliding plate on its corresponding side; a driving device is hinged between any sliding plate and the fixed plate.

[0011] In order to improve the guiding property of the groove, arc-shaped guiding surfaces are arranged on both sides of the groove on the positioning sleeve.

[0012] In order to improve the adjustment convenience of the limit rod, a U-shaped groove is provided on the bearing platform. The limit rod includes a base slidably installed in the U-shaped groove and a scale rod fixed above the base and extending upward. A positioning bolt is provided between the U-shaped groove and the base.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The purpose of the utility model is to provide a butterfly plate press to solve the technical problem in the prior art that the valve shaft hole of the valve body and the shaft hole of the butterfly plate are not concentric, which affects the subsequent valve shaft installation. The utility model realizes the concentricity of the valve shaft hole of the valve body and the shaft hole of the butterfly plate by arranging a valve body positioning clamping device and a butterfly plate limit correction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a butterfly plate press-fitting machine of the utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure of the butterfly plate press machine without the valve body installed;

[0017] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle valve body clamping device;

[0018] Figure 4 It is a structural schematic diagram of the positioning sleeve.

[0019] In the figure, 1, support platform, 21, valve body, 211, valve shaft hole, 22, butterfly plate, 221, shaft hole, 3, valve body positioning clamping device, 31, valve body positioning device, 311, positioning sleeve, 312, limit rod, 32, clamping claw, 331, fixed plate, 332, sliding plate, 333, turntable, 334, connecting rod, 335, driving device, 4, groove, 41, guide surface, 5, pressure device, 51, lifting device, 52, pressure head. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] The positions mentioned in this specification are based on the positions of the butterfly plate press of the utility model during normal operation, and do not limit the positions during storage and transportation. They only represent relative position relationships, not absolute position relationships.

[0022] like Figure 1 and Figure 2 As shown together, a butterfly plate press machine comprises a bearing platform 1, on which a valve body 21 of a butterfly valve is located; the bearing platform 1 is provided with a valve body positioning clamping device 3 and a butterfly plate limit correction device.

[0023] like Figure 2 As shown, the valve body positioning and clamping device 3 includes a valve body positioning device 31 and a valve body clamping device. The valve body positioning device 31 includes a positioning sleeve 311 and a limiting rod 312. The positioning sleeve 311 is inserted into the valve body 21. After the valve body 21 is rotated, the outer side of the valve shaft hole 211 of the valve body 21 abuts against the limiting rod 312. Through the limiting of the positioning sleeve 311 and the limiting rod 312, it is ensured that the valve shaft hole 211 of the valve body 21 is always kept in the same position, thereby realizing the positioning of the valve body 21. The positioning sleeve 311 can be detachably installed on the bearing platform 1, so as to facilitate disassembly and replacement, so as to adapt to various valve bodies 21.

[0024] like Figure 2 and Figure 3 As shown together, the valve body clamping device includes clamping claws 32 arranged opposite to each other, and the two clamping claws 32 are located on both sides of the valve body 21. The clamping claws 32 are slidably mounted on the carrier 1, and the two clamping claws 32 are provided with a driving device 335, and the driving device 335 drives the two clamping claws 32 to move relative to and away from each other, thereby clamping or loosening the valve body 21. The driving device 335 is a cylinder, an electric cylinder or an electric push rod, and this embodiment does not limit this as long as it can drive the two clamping claws 32 to move relative to and away from each other. The clamping claw 32 in this embodiment is a V-shaped claw, that is, the contact position between it and the outer wall of the valve body 21 is V-shaped, thereby increasing its clamping application range.

[0025] The two clamping jaws 32 can be driven by an independent driving device 335. In this embodiment, in order to ensure the automatic centering function of the two clamping jaws 32 and the synchronization of the two clamping jaws 32, the two clamping jaws 32 are connected to the same driving device 335 through a transmission structure, so that the valve body 21 is clamped or released at the same time through the same driving device 335.

[0026] The transmission structure can use a lead screw with two sliders moving toward each other to drive the two clamping claws 32 to move toward or away from each other. The lead screw is driven to rotate by a motor, and the two clamping claws 32 can move toward or away from each other through the forward or reverse rotation of the motor.

[0027] In order to reduce the cost in this embodiment, the transmission structure includes a fixed plate 331 installed at the bottom of the bearing platform 1 and sliding plates 332 symmetrically arranged on both sides of the fixed plate 331. The fixed plate 331 is fixed at the bottom of the bearing platform 1. A turntable 333 is rotatably installed on the fixed plate 331 at the central axis position of the positioning sleeve 311. In this embodiment, the turntable 333 is a straight-line structure, and the middle part is rotatably installed on the fixed plate 331. The two sliding plates 332 are slidably installed at the bottom of the bearing platform 1 and slide relative to or opposite to each other. Two guide rails are fixed at the bottom of the bearing platform 1, and the sliding plates 332 are slidably installed on the guide rails. Each sliding plate 332 is installed with a clamping claw 32; because the clamping claw 32 is at the top of the bearing platform 1, and the sliding plate 332 is at the bottom of the bearing platform 1, in order to connect the two, an avoidance groove is provided on the surface of the bearing platform 1 to avoid interference. A connecting rod 334 is hinged on the opposite sides of the rotating disk 333, and the other end of the connecting rod 334 is hinged to the sliding plate 332 on the corresponding side; a driving device 335 is hinged between any sliding plate 332 and the fixed plate 331. In this embodiment, the driving device 335 is a cylinder, and the sliding plate 332 can be driven to slide toward the fixed plate 331 by contraction of the cylinder. Under the action of the connecting rod 334, the rotating disk 333 is driven to rotate, so that the sliding plate 332 on the other side is driven to slide in the same way through the connecting rod 334 on the other side, thereby driving the two clamping claws 32 to move relative and opposite to each other, thereby clamping or loosening the valve body 21.

[0028] like Figure 2 and Figure 4 As shown in the figure, the butterfly plate limit correction device includes a groove 4 arranged at the top of the positioning sleeve 311. When the butterfly plate 22 is pressed down into place, the protrusions at both ends of the butterfly plate 22 are inserted into the groove 4, so that after the butterfly plate 22 is pressed down, the shaft hole 221 on the butterfly plate 22 is concentric with the valve shaft hole 211 of the valve body 21, thereby ensuring the subsequent accuracy. The positioning sleeve 311 is provided with arc-shaped guide surfaces 41 on both sides of the groove, so that when the butterfly plate 22 is pressed down, there is a slight deviation, which can be guided by the guide surface 41 and returned to the groove 4.

[0029] A pressure device 5 is also provided above the support platform 1. The pressure device 5 includes a lifting device 51 fixed above the valve body 21. The lifting device 51 can be a cylinder, an electric cylinder or an electric push rod. A pressure head 52 is fixed on its output shaft. After the pressure head 52 is pressed downward, it can extend into the valve body 21. Preferably, the pressure head 52 is located at the central axis of the inner cavity of the valve body 21, so that when the pressure head 52 presses the butterfly plate 22 downward, the pressure position is the center position of the butterfly plate 22, so that the force is balanced.

[0030] Further, in order to improve the application range of the device and the adjustment range of the limit rod 312, the limit rod 312 is installed on the support platform 1 in an adjustable position. The support platform 1 is provided with a U-shaped groove, and the limit rod 312 includes a base slidably installed in the U-shaped groove and a scale rod fixed above the base and extending upward, and a positioning bolt is provided between the U-shaped groove and the base.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the working process of a butterfly plate press machine is as follows:

[0032] First, confirm the specifications of the valve body 21 and the butterfly plate 22, so as to select a suitable positioning sleeve 311, and then adjust the position of the limiting rod 312 to ensure that the outer side of the valve shaft hole 211 of the valve body 21 abuts against the limiting rod 312, and the valve shaft hole 211 is concentric with the groove 4; then start mass production; during production, the valve body 21 is inserted into the positioning sleeve 311, and then the valve body 21 is rotated so that the outer side of the valve shaft hole 211 of the valve body 21 abuts against the limiting rod 312, and then the driving device 335 is turned on to clamp the valve body 21; the butterfly plate 22 is placed above the valve body 21, and the butterfly plate 22 is pressed into the valve body 21 by the pressure device 5, and when the butterfly plate 22 is inserted into the groove 4 of the positioning sleeve 311, the downward pressure is completed, thereby completing the installation of the butterfly plate 22.

[0033] The purpose of the utility model is to provide a butterfly plate press to solve the technical problem in the prior art that the valve shaft hole of the valve body and the shaft hole of the butterfly plate are not concentric, which affects the subsequent valve shaft installation. The utility model realizes the concentricity of the valve shaft hole of the valve body and the shaft hole of the butterfly plate by arranging a valve body positioning clamping device and a butterfly plate limit correction device.

[0034] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A butterfly plate press machine, characterized in that: It comprises a bearing platform, on which the valve body of the butterfly valve is located; the bearing platform is provided with a valve body positioning clamping device and a butterfly plate limit correction device; The valve body positioning and clamping device comprises a valve body positioning device and a valve body clamping device, the valve body positioning device comprises a positioning sleeve and a limiting rod, the positioning sleeve is inserted into the valve body, after the valve body is rotated, the outer side of the valve shaft hole of the valve body abuts against the limiting rod; the valve body clamping device comprises clamping claws arranged opposite to each other, the clamping claws are slidably mounted on the bearing platform, and a driving device is arranged on the two clamping claws, the driving device drives the two clamping claws to move relative to and away from each other, so as to clamp or release the valve body; The butterfly plate position limiting correction device comprises a groove arranged on the top of the positioning sleeve. When the butterfly plate is pressed down into place, the outer protrusion of the shaft hole of the butterfly plate is inserted into the groove.

2. A butterfly plate press machine according to claim 1, characterized in that: The limiting rod is installed on the bearing platform in an adjustable position.

3. The butterfly plate press machine according to claim 1, characterized in that: The positioning sleeve is detachably mounted on the bearing platform.

4. The butterfly plate press machine according to claim 1, characterized in that: The clamping claws are V-shaped claws.

5. The butterfly plate press machine according to claim 4, characterized in that: The two clamping claws are connected to the same driving device via a transmission structure.

6. The butterfly plate press machine according to claim 5, characterized in that: The transmission structure includes a fixed plate installed at the bottom of the supporting platform and sliding plates symmetrically arranged on both sides of the fixed plate, the fixed plate is fixed to the bottom of the supporting platform, and a turntable is rotatably installed on the fixed plate at the central axis position of the positioning sleeve; two sliding plates are slidably installed at the bottom of the supporting platform and slide relative to or away from each other, and each sliding plate is equipped with a clamping claw; a connecting rod is respectively hinged on the opposite sides of the turntable, and the other end of the connecting rod is hinged to the sliding plate on its corresponding side; the driving device is hinged between any one of the sliding plates and the fixed plate.

7. The butterfly plate press machine according to claim 1, characterized in that: The positioning sleeve is provided with arc-shaped guiding surfaces at both sides of the groove.

8. The butterfly plate press machine according to claim 2, characterized in that: The bearing platform is provided with a U-shaped groove, the limiting rod comprises a base slidably mounted in the U-shaped groove and a scale rod fixed above the base and extending upward, and a positioning bolt is provided between the U-shaped groove and the base.

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