A diaphragm pump with a rotating lock mechanism

Abstract

A kind of septum pump for septum rotation locking mechanism, it includes insertion mechanism, screw locking mechanism.The insertion mechanism includes sliding table plate, first pivot plate, second pivot plate.The screw locking mechanism includes positioning mechanism, carousel assembly, transmission assembly, locking component.The transmission assembly includes pinion, gear, fixed gear.The locking component includes tightening gun.Compared with the prior art, the present application can effectively improve work efficiency, improve product quality and reduce production cost by setting two tightening guns, so that the tightening torque can be accurately controlled.Meanwhile, by using the insertion mechanism to fix the tightening gun, the overall support structure is less deformed when subjected to reaction force, reducing the uncontrollable deviation of the tightening gun operating point.Meanwhile, by the positioning mechanism and rotating assembly, the tightening gun can be rotated to work on the bolts at different angles on the pump body, reducing manual intervention and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of pump assembly technology, and in particular to a diaphragm pump diaphragm rotary locking mechanism. Background Technology

[0002] In the pump assembly industry, bolted connections are the most widespread application, with the pump body and flange primarily connected by bolts. When fixing the pump body and flange, due to the limited installation space between them, a large number of bolts are used for connection, and high installation precision is required to prevent any signs of bolt wobbling after installation. Therefore, bolt fastening is a key technology in pump assembly.

[0003] For example, the bolt tightening gun described in Chinese invention CN201220216284.4 includes a tightening shaft and a tightening gun head. A feed guide sleeve is fixed to the front end of the tightening shaft, and a sleeve adapter is fitted onto the feed guide sleeve. The sleeve adapter slides back and forth along the axis of the feed guide sleeve. The tightening gun head passes through the sleeve adapter and is fixed to the sleeve adapter by a pin. This bolt tightening gun of the present invention extends the feed stroke of the tightening gun head, enabling accurate positioning and facilitating precise bolt installation.

[0004] Although the increased feed stroke of the tightening gun head can accurately position the bolts and facilitate their precise installation, the positional accuracy of the tightening gun has a significant impact on the assembly quality of bolts and other components during operation. In existing technologies, tightening guns are usually directly installed at the end of the actuator, such as a robotic arm. During operation, uneven distribution of the center of gravity and torque can easily cause the position of the work point to shift, thus affecting the accuracy of the operation. Summary of the Invention

[0005] In view of this, the present invention provides a diaphragm pump diaphragm rotary locking mechanism that can solve the above problems.

[0006] A diaphragm pump diaphragm rotary locking mechanism includes an insertion mechanism and a screw locking mechanism disposed on the insertion mechanism. The insertion mechanism includes a slide plate, a first rotating shaft plate disposed on the slide plate, and a second rotating shaft plate spaced apart from the first rotating shaft plate. The first and second rotating shaft plates are perpendicularly disposed at opposite ends of the slide plate along the sliding direction. The screw locking mechanism includes a positioning mechanism disposed on the first rotating shaft plate, a turntable assembly disposed on the second rotating shaft plate, a transmission assembly disposed between the turntable assembly and the positioning mechanism, and a locking component disposed on the turntable assembly. The turntable assembly includes a synchronizing disc. The transmission assembly includes a pinion, a large gear, two fixed gears fixed to the first rotating shaft plate, and two connecting rods connecting the synchronizing disc and the large gear. The pinion is coupled to the large gear. The fixed gears are rotatably disposed on the first rotating shaft plate and coupled to the large gear, with a ball bearing disposed at the central connection point. The locking component includes two tightening guns disposed on the large gear. The tightening gun body passes through the first rotating shaft plate and is fixed to the large gear. One end is inserted into the second rotating shaft plate, and the other end passes through the large gear and extends forward. The two tightening guns are arranged on both sides of the center of the large gear and are located on the same diameter of the large gear.

[0007] Furthermore, the diaphragm pump diaphragm rotary locking mechanism also includes a frame and a moving mechanism disposed on the frame. The frame includes at least four supports and a worktable disposed on the supports, with an opening on the worktable.

[0008] Furthermore, the moving mechanism includes two slide rails disposed on the worktable, multiple sliders disposed on the slide rails, a drive device disposed on the side of the worktable away from the slide rails, and a connecting block connecting the drive device and the insertion mechanism.

[0009] Furthermore, the insertion mechanism also includes a pair of ribs disposed between the second rotating shaft plate and the slide plate.

[0010] Furthermore, the positioning mechanism includes a motor plate spaced apart from the first rotating shaft plate, four motor supports connecting the first rotating shaft plate and the motor plate, a pinion drive shaft passing through the first rotating shaft plate, a pinion flange bushing fixed on the first rotating shaft plate, a first bearing disposed between the pinion drive shaft and the pinion flange bushing, a servo motor fixed on the motor plate, and a reed coupling connecting the servo motor and the pinion drive shaft. The motor plate is a rectangular plate, the motor supports are spaced apart between the motor plate and the first rotating shaft plate and located at the four corners of the motor plate, and the servo motor and the reed coupling are connected to and fixed on the motor plate.

[0011] Furthermore, the turntable assembly includes a large gear drive shaft passing through the first and second shaft plates, a large gear flange bushing fixed and passing through the second shaft plate, a second bearing disposed between the large gear drive shaft and the large gear flange bushing, and a synchronization disc fixed on the large gear drive shaft. One end of the large gear drive shaft is inserted into the second bearing, and the other end is fixed on the transmission assembly.

[0012] Furthermore, the synchronizing disc is fixed to the shaft of the large gear drive shaft and located near the flange sleeve of the large gear. A pair of insertion ports with opposite opening directions are provided diagonally on the edge of the synchronizing disc.

[0013] Furthermore, the connecting rods are located on both sides of the center of the large gear and on the same diameter of the large gear.

[0014] Furthermore, the locking component also includes a locking sleeve disposed at the free end of the tightening gun away from the large gear, the end of which away from the tightening gun is an internal hexagonal groove that matches the bolt head shape.

[0015] Compared with existing technologies, the diaphragm pump rotary locking mechanism provided by this invention, by setting two tightening guns, allows for precise control of the tightening torque. This prevents vibration-induced loosening due to insufficient tightening force, and avoids breakage or deformation of connecting components due to excessive tightening force, effectively improving work efficiency, product quality, and reducing production costs. Simultaneously, by using the insertion mechanism to fix the tightening guns, the deformation of the overall support structure under reaction force is minimized, reducing uncontrollable deviation of the tightening gun's working point and further improving the equipment's operational accuracy and quality. The sliding component ensures the horizontal movement of the tightening guns, facilitating their proximity to bolts. Finally, the positioning mechanism and rotating component rotate the tightening guns, enabling them to operate on bolts at different angles on the pump body, reducing manual intervention and improving work efficiency. Attached Figure Description

[0016] Figure 1 This invention provides a schematic diagram of the product structure of a diaphragm pump diaphragm rotary locking mechanism.

[0017] Figure 2 for Figure 1 A schematic diagram of the product structure from another angle of a diaphragm pump diaphragm rotary locking mechanism.

[0018] Figure 3 for Figure 1 A side view of a diaphragm pump diaphragm rotary locking mechanism. Detailed Implementation

[0019] The following provides a more detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0020] like Figures 1 to 3 The diagram shown is a structural schematic of a diaphragm pump diaphragm rotary locking mechanism provided by the present invention. The diaphragm pump diaphragm rotary locking mechanism includes a frame 10, a moving mechanism 20 disposed on the frame 10, an insertion mechanism 30 disposed on the moving mechanism 20, and a screw locking mechanism 40 disposed on the insertion mechanism 30. It is conceivable that the diaphragm pump diaphragm pump diaphragm rotary locking mechanism also includes other functional modules such as fasteners, electrical control units, etc., which are technologies known to those skilled in the art and will not be described in detail here.

[0021] The frame 10 is a support structure made of stainless steel or alloy and includes at least four supports 11 and a worktable 12 mounted on the supports 11. The supports 11 stand vertically on the ground or a fixed platform to provide fixed support. The worktable 12 is located on the supports 11 to enable the mechanisms located on the frame 10 to perform their functions. The worktable 12 has an opening 13 for the movement of the moving mechanism 20.

[0022] The moving mechanism 20 includes two slide rails 21 mounted on the worktable 12, multiple sliders 22 mounted on the slide rails 21, a drive device 23 mounted on the side of the worktable 12 away from the slide rails 21, and a connecting block 24 connecting the drive device 23 and the insertion mechanism 30. The slide rails 21 are spaced apart on the worktable 12 and located on both sides of the movable opening 13 to allow the sliders 22 to slide. The sliders 22 are mounted on the slide rails 21 to connect to and drive the insertion mechanism 30 to reciprocate along the slide rails 21. The drive device 23 is a cylinder or lead screw drive device, and is automatically electrically controlled to drive the insertion mechanism 30 to slide along the slide rails 21. The connecting block 24 passes through the movable opening 13 and connects the drive device 23 and the insertion mechanism 30, allowing the drive device 23 to act on the insertion mechanism 30.

[0023] The insertion mechanism 30 includes a slide plate 31 disposed on the slider 22, a first rotating shaft plate 32 vertically disposed on the slide plate 31, a second rotating shaft plate 33 spaced apart from the first rotating shaft plate 32, and a pair of ribs 34 disposed between the second rotating shaft plate 33 and the slide plate 31. The slide plate 31 is spaced apart from the worktable 12 and located on the slider 22 to serve as a fixed base for connecting the moving mechanism 20. The first rotating shaft plate 32 and the second rotating shaft plate 33 are vertically disposed at both ends of the slide plate 31 along the sliding direction and are spaced apart from each other to serve as a support structure for the screw locking mechanism 40. The ribs 34 are disposed between the second rotating shaft plate 33 and the slide plate 31 to enhance the strength of the second rotating shaft plate 33.

[0024] The screw locking mechanism 40 includes a positioning mechanism 41 disposed on the first rotating shaft plate 32, a turntable assembly 42 disposed on the second rotating shaft plate 33, a transmission assembly 43 disposed between the turntable assembly 42 and the positioning mechanism 41, and a locking component 44 disposed on the turntable assembly 42. The positioning mechanism 41 is fixed and passes through the first rotating shaft plate 32, and includes a motor plate 411 spaced apart from the first rotating shaft plate 32, four motor supports 412 connecting the first rotating shaft plate 32 and the motor plate 411, a pinion drive shaft 413 passing through the first rotating shaft plate 32, a pinion flange bushing 414 fixed on the first rotating shaft plate 32, a first bearing 415 disposed between the pinion drive shaft 413 and the pinion flange bushing 414, a servo motor 416 fixed on the motor plate 411, and a reed coupling 417 connecting the servo motor 416 and the pinion drive shaft 413. The motor plate 411 is a rectangular plate made of the same material as the first rotating shaft plate 32, used to mount the servo motor 415. Motor supports 412 are spaced between the motor plate 411 and the first rotating shaft plate 32, located at the four corners of the motor plate 411, for fixing and supporting the motor plate 411. The pinion drive shaft 413 passes through the first rotating shaft plate 32, with one end connected to the spring coupling 416 and the other end inserted into the transmission assembly 43 for transmission. The pinion flange bushing 414 passes through and is fixed to the first rotating shaft plate 32 for fixing the pinion drive shaft 413. The first bearing 415 is a ball bearing, with its inner ring fixed to the pinion drive shaft 413 and its outer ring fixed to the pinion flange bushing 414, for fixing the pinion flange bushing 414 and ensuring its free rotation. The servo motor 416 and the reed coupling 417 are connected and fixed on the motor plate 411 for driving and transmission. Both are existing technologies and should be known to those skilled in the art, so they will not be described in detail here.

[0025] The turntable assembly 42 includes a large gear drive shaft 421 passing through the first rotating shaft plate 32 and the second rotating shaft plate 33, a large gear flange bushing 422 fixed and passing through the second rotating shaft plate 33, a second bearing 423 disposed between the large gear drive shaft 421 and the large gear flange bushing 422, and a synchronous disc 424 fixed on the large gear drive shaft 421. One end of the large gear drive shaft 421 is inserted into the second bearing 423, and the other end is fixed to the transmission assembly 43 to rotate under the action of the transmission assembly 43. The large gear flange bushing 422 passes through and is fixed to the second rotating shaft plate 33 to fix the large gear drive shaft 421. The second bearing 423 is a ball bearing, with its inner ring fixed to the large gear drive shaft 421 and its outer ring fixed to the large gear flange bushing 422 to fix the small gear flange bushing 414 and ensure its free rotation. The synchronizing disc 424 is fixed to the shaft of the large gear drive shaft 421 and located near the large gear flange sleeve 422, so that the locking member 44 inserted therein rotates synchronously. A pair of insertion ports 425 with opposite opening directions are provided diagonally on the edge of the synchronizing disc 424 for the locking member 44 to be inserted therein.

[0026] The transmission assembly 43 includes a small gear 431 fixed on the small gear drive shaft 413, a large gear 432 fixed on the large gear drive shaft 421, two fixed gears 433 fixed on the first rotating shaft plate 32, and two connecting rods 434 connecting the synchronous disk 424 and the large gear 432. The small gear 431 is coupled to the large gear 432 to drive the large gear 432 to rotate under the drive of the servo motor 415. The center of the large gear 432 is fixed to the end of the large gear drive shaft 421 to drive the large gear drive shaft 421 to rotate when rotating. The fixed gears 433 are fixed on the first rotating shaft plate 32 and coupled to the large gear 432, and a ball bearing is provided at the connection point of the center to fix the position of the large gear 432 under the joint action of the small gear 431. The connecting rod 434 is located on both sides of the center of the large gear 432 and on the same diameter of the large gear 432. It is used to connect the large gear 432 and the synchronous disk 424 to ensure the stability of the synchronous disk 424.

[0027] The locking component 44 includes two tightening guns 441 mounted on the large gear 432, and a locking sleeve 442 located at the free end of each tightening gun 441 away from the large gear 432. The tightening guns 441 are existing technology and should be well known to those skilled in the art; therefore, their structure will not be described in detail here. The body of each tightening gun 441 passes through the first rotating shaft plate 32 and is fixed to the large gear 432. One end passes through the insertion port 425 and is inserted into the second rotating shaft plate 33, while the other end passes through the large gear 432 and extends forward. The two tightening guns 441 are positioned on either side of the center of the large gear 432 and are located on the same diameter of the large gear 432 to ensure that the distance from each point of the two tightening guns 441 to the center is consistent after rotation. The locking sleeve 442 is a sleeve fixed at the free end of the tightening gun 441. The end away from the tightening gun 441 has a groove that matches the bolt head shape, such as an internal hexagon, so as to fix the bolt after insertion and tighten the bolt by the action of the tightening gun 441.

[0028] Compared with existing technologies, the diaphragm pump rotary locking mechanism provided by this invention, by setting two tightening guns 441, allows for precise control of the tightening torque. This prevents vibration-induced loosening due to insufficient tightening force, and avoids breakage or deformation of connecting components due to excessive tightening force, effectively improving work efficiency, product quality, and reducing production costs. Simultaneously, by using the insertion mechanism 30 to fix the tightening guns 441, the deformation of the overall support structure under reaction force is minimized, reducing uncontrollable deviation of the tightening gun's working point and further improving the equipment's operational accuracy and quality. The sliding component 20 ensures the horizontal movement of the tightening guns 441, facilitating their proximity to bolts. Finally, the positioning mechanism 41 and rotating component 43 rotate the tightening guns 441, enabling them to operate on bolts at different angles on the pump body, reducing manual intervention and improving work efficiency.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions or improvements within the spirit of the present invention are covered within the scope of the claims of the present invention.

Claims

1. A diaphragm pump diaphragm rotary locking mechanism, characterized in that: The diaphragm pump's diaphragm rotary locking mechanism includes an insertion mechanism and a screw locking mechanism disposed on the insertion mechanism. The insertion mechanism includes a slide plate, a first rotating shaft plate disposed on the slide plate, and a second rotating shaft plate spaced apart from the first rotating shaft plate. The first and second rotating shaft plates are perpendicularly disposed at opposite ends of the slide plate along the sliding direction. The screw locking mechanism includes a positioning mechanism disposed on the first rotating shaft plate, a turntable assembly disposed on the second rotating shaft plate, a transmission assembly disposed between the turntable assembly and the positioning mechanism, and a locking component disposed on the turntable assembly. The turntable assembly includes a... The synchronous disc and the transmission assembly include a small gear, a large gear, two fixed gears fixed on the first rotating shaft plate, and two connecting rods connecting the synchronous disc and the large gear. The small gear is coupled to the large gear, and the fixed gear is rotatably mounted on the first rotating shaft plate and coupled to the large gear. A ball bearing is provided at the connection point at the center. The locking component includes two tightening guns mounted on the large gear. The body of the tightening gun passes through the first rotating shaft plate and is fixed to the large gear. One end is inserted into the second rotating shaft plate, and the other end passes through the large gear and extends forward. The two tightening guns are located on both sides of the center of the large gear and are located on the same diameter of the large gear.

2. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that: The diaphragm pump diaphragm rotary locking mechanism further includes a frame and a moving mechanism mounted on the frame. The frame includes at least four supports and a worktable mounted on the supports, with an opening on the worktable.

3. The diaphragm pump rotary locking mechanism as described in claim 2, characterized in that: The moving mechanism includes two slide rails on the worktable, multiple sliders on the slide rails, a drive device on the side of the worktable away from the slide rails, and a connecting block connecting the drive device and the insertion mechanism.

4. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that: The insertion mechanism also includes a pair of ribs disposed between the second rotating shaft plate and the slide plate.

5. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that: The positioning mechanism includes a motor plate spaced apart from the first rotating shaft plate, four motor supports connecting the first rotating shaft plate and the motor plate, a pinion drive shaft passing through the first rotating shaft plate, a pinion flange bushing fixed on the first rotating shaft plate, a first bearing disposed between the pinion drive shaft and the pinion flange bushing, a servo motor fixed on the motor plate, and a reed coupling connecting the servo motor and the pinion drive shaft. The motor plate is a rectangular plate, the motor supports are spaced apart between the motor plate and the first rotating shaft plate and located at the four corners of the motor plate, and the servo motor and the reed coupling are connected to and fixed on the motor plate.

6. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that... The turntable assembly includes a large gear drive shaft passing through the first and second rotating shaft plates, a large gear flange bushing fixed and passing through the second rotating shaft plate, a second bearing disposed between the large gear drive shaft and the large gear flange bushing, and a synchronization disc fixed on the large gear drive shaft. One end of the large gear drive shaft is inserted into the second bearing, and the other end is fixed on the transmission assembly.

7. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that: The synchronizing disc is fixed to the shaft of the large gear drive shaft and located near the flange sleeve of the large gear. A pair of insertion ports with opposite opening directions are provided diagonally on the edge of the synchronizing disc.

8. The diaphragm pump rotary locking mechanism as described in claim 7, characterized in that: The connecting rods are located on both sides of the center of the large gear and on the same diameter of the large gear.

9. The diaphragm pump rotary locking mechanism as described in claim 1, characterized in that: The locking component also includes a locking sleeve disposed at the free end of the tightening gun away from the large gear, the end of which away from the tightening gun is an internal hexagonal groove that matches the bolt head shape.

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