A fixed torque automatic tightening device for connecting the engine and the screw sleeve in the control cabin

Abstract

The invention discloses a fixed-torque automatic tightening device for connecting an engine with an inner screw sleeve of a control cabin, comprising a frame, an engine positioning and rotating device, an engine slide block position automatic identification device, a wing tool installation and disassembly device, a control cabin grasping positioning and rotating device, a control cabin slide block position automatic identification device, and an inner screw sleeve fixed-torque automatic tightening device. The invention can complete the axial automatic alignment of the engine and the control cabin, ensure that four pairs of wing slots are coplanar at the same time, and can also realize the fixed-torque automatic tightening of the inner screw sleeve connecting the engine and the control cabin, with high precision and good consistency, and can effectively reduce the number of assembly personnel, reduce labor intensity, and improve production efficiency.

Description

Technical Field

[0001] The invention relates to a fixed-torque automatic tightening device for connecting an engine with a screw sleeve in a control cabin. Background Art

[0002] At present, the production and assembly of engines and control cabins in domestic thin-walled products are still mainly manual, and manual assembly has the disadvantages of low efficiency, high strength and poor consistency. During the docking process between the engine and the control cabin, it is necessary to ensure that the four pairs of wing slots are in a coplanar state. During manual assembly, multiple tooling must be used for repeated disassembly, and it requires the cooperation of multiple people to complete. The tightening of the inner thread sleeve has strict requirements on the tightening torque. During manual assembly, a torque wrench is used to apply torque, which cannot guarantee the consistency of each product and has low precision. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a fixed torque automatic tightening device for connecting the engine and the screw sleeve in the control cabin, which has a simple structure, is easy to operate and has high working efficiency.

[0004] The technical scheme for solving the above problems is as follows: a fixed-torque automatic tightening device for connecting an engine with an inner screw sleeve of a control cabin, comprising a frame; an engine positioning and rotating device installed at the bottom of the frame and used for installing the engine and driving the engine to rotate; an engine slider position automatic identification device installed on the frame and used for identifying the position of an engine slider and fixing the engine slider; a wing tool installation and removal device installed at the bottom of the frame and symmetrically arranged on both sides of the engine positioning and rotating device and used for installing and removing the wing tool; a control cabin grasping, positioning and rotating device that can be lifted and installed on the top of the frame and used for grabbing and fixing the control cabin and driving the control cabin to rotate; a control cabin slider position automatic identification device installed on the frame and used for identifying the position of the control cabin slider and fixing the control cabin slider; and an inner screw sleeve fixed-torque automatic tightening device that can be lifted and installed in the middle of the frame and used for tightening the inner screw sleeve installation tool connecting the engine and the control cabin.

[0005] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device. The engine positioning and rotation device includes a positioning seat, a turntable bearing, a servo motor, and a first reducer. The servo motor is fixedly installed at the bottom of the frame. The servo motor is connected to the lower end surface of the turntable bearing through the first reducer. The positioning seat is fixedly installed on the upper end surface of the turntable bearing, and the engine is placed on the positioning seat.

[0006] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device, and the engine slider position automatic identification device includes an engine slider fixing seat and a first position sensor. The first position sensor is fixed on the frame for identifying the position of the engine slider. The engine slider fixing seat is located above the first position sensor. A first slide rail is provided on the frame in the vertical direction. The engine slider fixing seat can be slidably installed at the lower part of the first slide rail and can slide up and down along the lower part of the first slide rail. A first driving mechanism for driving the engine slider fixing seat to slide on the first slide rail is provided on the frame; after the first position sensor identifies that the engine slider has rotated to the specified position, the engine slider fixing seat descends and comes into contact with the engine slider to prevent the engine slider from rotating.

[0007] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device, and the wing tooling installation and disassembly device includes a guide ball, a retraction pin assembly, a push seat, a wing tooling and a driving cylinder. The driving cylinder is fixedly installed on the mounting frame, and the front end of the driving cylinder is connected to the push seat, and the front end of the push seat is provided with a wing tooling; the guide ball is installed on the upper and lower surfaces of the wing tooling for guiding the wing tooling; the retraction pin assembly is installed on the push seat to realize the automatic recovery of the wing tooling.

[0008] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device. The number of the retracting pin assemblies is two groups, and each group of retracting pin assemblies includes a telescopic cylinder. A pin is provided at the front end of the telescopic cylinder. The pin corresponds to the pin hole on the wing tooling. Under the action of the telescopic cylinder, the pin pops out and is inserted into the pin hole on the wing tooling, and the wing tooling is retracted under the action of the driving cylinder.

[0009] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device. The control cabin grasping, positioning and rotating device includes a clamping claw, a pressure cylinder, a mounting plate, a rotating motor, a second reducer and a first lifting mechanism. The mounting plate can be slidably mounted on the upper part of the first slide rail and can slide up and down along the upper part of the first slide rail. The rotating motor is fixedly mounted on the mounting plate. The rotating motor is connected to the pressure cylinder through the second reducer. A clamping claw is provided at the lower end of the pressure cylinder. The first lifting mechanism is fixedly mounted on the top of the frame and connected to the mounting plate, driving the mounting plate to slide up and down on the upper part of the first slide rail.

[0010] The above-mentioned engine is connected to the screw sleeve in the control cabin with a fixed torque automatic tightening device, and the control cabin slider position automatic identification device includes an introduction cylinder, a control cabin slider fixing seat and a second position sensor. The second position sensor is fixed on the mounting plate and is used to identify the position of the control cabin slider. The mounting plate is provided with a second slide rail in the vertical direction, and the control cabin slider fixing seat is located above the second position sensor. The control cabin slider fixing seat can be slidably installed on the second slide rail. The mounting plate is provided with an introduction cylinder for driving the control cabin slider fixing seat to slide on the second slide rail; after the second position sensor identifies that the control cabin slider has rotated to the specified position, the control cabin slider fixing seat descends and comes into contact with the control cabin slider to prevent the control cabin slider from rotating.

[0011] The above-mentioned engine and the control cabin inner screw sleeve are connected with a fixed torque automatic tightening device, and the internal screw sleeve fixed torque automatic tightening device includes an internal screw sleeve tightening tool, a tightening machine, and a second lifting mechanism. The internal screw sleeve tightening tool can be slidably installed in the middle of the first slide rail and can slide up and down along the middle of the first slide rail. The tightening machine is installed on the internal screw sleeve tightening tool and drives the internal screw sleeve tightening tool to rotate through a gear set. The second lifting mechanism is fixedly installed on the top of the frame and connected to the internal screw sleeve tightening tool, driving the internal screw sleeve tightening tool to slide up and down in the middle of the first slide rail.

[0012] The beneficial effects of the present invention are:

[0013] 1. The present invention is provided with an engine positioning and rotating device for installing an engine and driving the engine to rotate, an engine slider position automatic identification device for identifying the position of an engine slider and fixing the engine slider, a control cabin grasping, positioning and rotating device for grasping and fixing a control cabin and driving the control cabin to rotate, and a control cabin slider position automatic identification device for identifying the position of a control cabin slider and fixing the control cabin slider. Through the mutual cooperation of the engine positioning and rotating device, the engine slider position automatic identification device, the control cabin grasping, positioning and rotating device, and the control cabin slider position automatic identification device, the engine and the control cabin can be automatically aligned in the axial direction, and the four pairs of wing slots can be ensured to be coplanar at the same time.

[0014] 2. The present invention is provided with an internal thread sleeve fixed torque automatic tightening device for tightening the internal thread sleeve installation tooling connecting the engine and the control cabin, which can realize the fixed torque automatic tightening of the internal thread sleeve connecting the engine and the control cabin with high precision and good consistency, can effectively reduce the number of assembly personnel, reduce labor intensity, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 As shown, a fixed-torque automatic tightening device for connecting an engine and an inner screw sleeve of a control cabin comprises a frame 29; an engine positioning and rotating device 1 installed at the bottom of the frame 29 for installing an engine 25 and driving the engine 25 to rotate; an engine slider position automatic identification device 23 installed on the frame 29 for identifying the position of an engine slider and fixing the engine slider; a wing tool installation and removal device 2 installed at the bottom of the frame 29 and symmetrically arranged on both sides of the engine positioning and rotating device 1 for installing and removing a wing tool 6; a control cabin grasping, positioning and rotating device 13 that can be lifted and installed on the top of the frame 29 and is used to grab and fix the control cabin 20 and drive the control cabin 20 to rotate; a control cabin slider position automatic identification device 18 installed on the frame 29 for identifying the position of the control cabin slider and fixing the control cabin slider; an inner screw sleeve fixed-torque automatic tightening device 9 that can be lifted and installed in the middle of the frame 29 and is used to tighten the inner screw sleeve installation tool 21 connecting the engine 25 and the control cabin 20.

[0018] The engine positioning and rotating device 1 includes a positioning seat 28, a turntable bearing 26, a servo motor 27, and a first reducer. The servo motor 27 is fixedly mounted on the bottom of the frame 29. The servo motor 27 is connected to the lower end surface of the turntable bearing 26 through the first reducer. The positioning seat 28 is fixedly mounted on the upper end surface of the turntable bearing 26, and the engine 25 is placed on the positioning seat 28.

[0019] The engine slider position automatic identification device 23 includes an engine slider fixing seat 22 and a first position sensor 24. The first position sensor 24 is fixed on the frame 29 for identifying the position of the engine slider. The engine slider fixing seat 22 is located above the first position sensor 24. A first slide rail 30 is provided on the frame 29 in the vertical direction. The engine slider fixing seat 22 can be slidably installed at the lower part of the first slide rail 30 and can slide up and down along the lower part of the first slide rail 30. A first driving mechanism for driving the engine slider fixing seat 22 to slide on the first slide rail 30 is provided on the frame 29. After the first position sensor 24 identifies that the engine slider has rotated to the specified position, the engine slider fixing seat 22 descends and comes into contact with the engine slider to prevent the engine slider from rotating.

[0020] The wing tool installation and disassembly device 2 includes a guide ball 3, a retracting pin assembly 4, a push seat 5, a wing tool 6 and a driving cylinder 7. The driving cylinder 7 is fixedly installed on the mounting frame 31. The front end of the driving cylinder 7 is connected to the push seat 5, and the front end of the push seat 5 is provided with a wing tool 6; the guide ball 3 is installed on the upper and lower surfaces of the wing tool 6 for guiding the wing tool 6; the retracting pin assembly 4 is installed on the push seat 5 to realize the automatic recovery of the wing tool 6.

[0021] There are two groups of retracting pin assemblies 4, and each group of retracting pin assemblies 4 includes a telescopic cylinder with a pin at the front end. The pin corresponds to the pin hole on the wing tooling 6. Under the action of the telescopic cylinder, the pin pops out and is inserted into the pin hole on the wing tooling 6, and the wing tooling 6 is retracted under the action of the driving cylinder 7.

[0022] The control cabin grasping, positioning and rotating device 13 includes a clamping claw 11, a pressure cylinder 12, a mounting plate 32, a rotating motor 14, a second reducer and a first lifting mechanism 15. The mounting plate 32 can be slidably mounted on the upper part of the first slide rail 30 and can slide up and down along the upper part of the first slide rail 30. The rotating motor 14 is fixedly mounted on the mounting plate 32. The rotating motor 14 is connected to the pressure cylinder 12 through the second reducer. The lower end of the pressure cylinder 12 is provided with a clamping claw 11. The first lifting mechanism 15 is fixedly mounted on the top of the frame 29 and connected to the mounting plate 32, driving the mounting plate 32 to slide up and down on the upper part of the first slide rail 30.

[0023] The control cabin slider position automatic identification device 18 includes an introduction cylinder 16, a control cabin slider fixing seat 17 and a second position sensor 19. The second position sensor 19 is fixed on the mounting plate 32 for identifying the position of the control cabin slider. The mounting plate 32 is provided with a second slide rail in the vertical direction. The control cabin slider fixing seat 17 is located above the second position sensor 19. The control cabin slider fixing seat 17 can be slidably installed on the second slide rail. The mounting plate 32 is provided with an introduction cylinder 16 for driving the control cabin slider fixing seat 17 to slide on the second slide rail. After the second position sensor 19 identifies that the control cabin slider has rotated to the specified position, the control cabin slider fixing seat 17 descends and comes into contact with the control cabin slider to prevent the control cabin slider from rotating.

[0024] The internal thread sleeve fixed torque automatic tightening device 9 includes an internal thread sleeve tightening tool 8, a tightening machine 10, and a second lifting mechanism 33. The internal thread sleeve tightening tool 8 can be slidably installed in the middle of the first slide rail 30 and can slide up and down along the middle of the first slide rail 30. The tightening machine 10 is installed on the internal thread sleeve tightening tool 8 and drives the internal thread sleeve tightening tool 8 to rotate through a gear set. The second lifting mechanism 33 is fixedly installed on the top of the frame 29 and is connected to the internal thread sleeve tightening tool 8, driving the internal thread sleeve tightening tool 8 to slide up and down in the middle of the first slide rail 30.

[0025] The first lifting mechanism 15 and the second lifting mechanism 33 have the same structure and can be implemented by a combined structure of a driving motor, a guide rail, and a lead screw, that is, the driving motor drives the lead screw to rotate, so that the guide rail slides up and down along the lead screw, and the lifting component (mounting plate 32 or inner screw sleeve tightening tool 8) is fixedly connected to the guide rail and lifts up and down along with the guide rail.

[0026] The present invention can automatically complete the axial alignment of the engine 25 and the control cabin 20, and tighten the connecting inner screw sleeve with a fixed torque. The specific working process is:

[0027] The engine 25 is moved to the positioning seat 28 by the frame manipulator equipment, and the position of the slider on the engine 25 is measured by the first sensor. The servo motor 27 drives the turntable bearing 26 to rotate. When the first position sensor 24 measures that the engine slider meets the position requirement, the engine slider fixing seat 22 falls and cooperates with the engine slider, thereby determining the position relationship of the engine 25 and preventing the engine slider from rotating.

[0028] The control cabin 20 is transported to the bottom of the clamping claw 11 through the frame manipulator equipment, and the clamping claw 11 performs the control cabin 20 grabbing operation, and the position of the control cabin slider is measured by the second position sensor 19. The rotating motor 14 can rotate the control cabin 20. When the second position sensor 19 measures that the control cabin slider meets the position requirement, the control cabin slider fixing seat 17 falls and cooperates with the control cabin slider to prevent the control cabin slider from rotating, thereby preliminarily determining the position relationship of the control cabin 20.

[0029] The control cabin 20 is lowered by the first lifting mechanism 15 until it just contacts the engine 25, and then a wing fixture 6 is automatically inserted on both sides of the engine 25 and the control cabin 20 by the wing fixture installation and removal device 2. The two protrusions at the front end of the wing fixture 6 are respectively inserted into the grooves of the engine 25 and the control cabin 20 to accurately position the engine 25 and the control cabin 20.

[0030] An inner screw sleeve installation tool 21 is manually set at the connection between the engine 25 and the control cabin 20, and the inner screw sleeve fixed torque automatic tightening device 9 falls to the contact position between the engine 25 and the control cabin 20 through the second lifting mechanism 33, and the rated torque is applied to the inner screw sleeve installation tool, thereby completing the docking of the engine 25 and the control cabin 20.

[0031] After the docking is completed, the wing tooling 6 is automatically retracted under the action of the retracting latch assembly 4, the internal thread sleeve fixed torque automatic tightening device 9 is disengaged, and the product is moved back to the transmission line by the frame manipulator.

Claims

1. A fixed torque automatic tightening device for connecting the screw sleeve between the engine and the control cabin, characterized in that: It includes a frame; an engine positioning and rotating device installed at the bottom of the frame and used to install the engine and drive the engine to rotate; An automatic engine slider position identification device installed on the frame for identifying the position of the engine slider and fixing the engine slider; a wing tool installation and removal device installed at the bottom of the frame and symmetrically arranged on both sides of the engine positioning and rotation device for installing and removing the wing tool; a control cabin grasping, positioning and rotating device that can be lifted and installed on the top of the frame and is used to grab and fix the control cabin and drive the control cabin to rotate; a control cabin slider position automatic identification device installed on the frame for identifying the position of the control cabin slider and fixing the control cabin slider; an internal screw sleeve fixed torque automatic tightening device that can be lifted and installed in the middle of the frame and is used to tighten the internal screw sleeve installation tool that connects the engine and the control cabin; The engine positioning and rotating device comprises a positioning seat, a turntable bearing, a servo motor, and a first reducer. The servo motor is fixedly mounted at the bottom of the frame. The servo motor is connected to the lower end surface of the turntable bearing through the first reducer. The positioning seat is fixedly mounted on the upper end surface of the turntable bearing, and the engine is placed on the positioning seat. The automatic position identification device for the engine slider comprises an engine slider fixing seat and a first position sensor, wherein the first position sensor is fixed on the frame for identifying the position of the engine slider, the engine slider fixing seat is located above the first position sensor, a first slide rail is provided on the frame in the vertical direction, the engine slider fixing seat can be slidably mounted on the lower part of the first slide rail and can slide up and down along the lower part of the first slide rail, and a first driving mechanism for driving the engine slider fixing seat to slide on the first slide rail is provided on the frame; after the first position sensor identifies that the engine slider has rotated to a specified position, the engine slider fixing seat descends and realizes a matching contact with the engine slider to prevent the engine slider from rotating; The wing tool installation and removal device comprises a guide ball, a retracting latch assembly, a push seat, a wing tool and a driving cylinder, wherein the driving cylinder is fixedly mounted on a mounting frame, the front end of the driving cylinder is connected to the push seat, and the front end of the push seat is provided with a wing tool; the guide ball is mounted on the upper and lower surfaces of the wing tool for guiding the wing tool; the retracting latch assembly is mounted on the push seat to realize automatic recovery of the wing tool; There are two groups of retracting latch assemblies, each group of retracting latch assemblies includes a telescopic cylinder, a latch is provided at the front end of the telescopic cylinder, the latch corresponds to the latch hole on the wing tooling, under the action of the telescopic cylinder, the latch pops out and inserts into the latch hole on the wing tooling, and the wing tooling is retracted under the action of the driving cylinder; The control cabin grasping, positioning and rotating device includes a clamping claw, a pressure cylinder, a mounting plate, a rotating motor, a second reducer and a first lifting mechanism. The mounting plate can be slidably mounted on the upper part of the first slide rail and can slide up and down along the upper part of the first slide rail. The rotating motor is fixedly mounted on the mounting plate. The rotating motor is connected to the pressure cylinder through the second reducer. A clamping claw is provided at the lower end of the pressure cylinder. The first lifting mechanism is fixedly mounted on the top of the frame and connected to the mounting plate, driving the mounting plate to slide up and down on the upper part of the first slide rail. The automatic position identification device for the control cabin slider comprises an introduction cylinder, a control cabin slider fixing seat and a second position sensor, wherein the second position sensor is fixed on the mounting plate and used for identifying the position of the control cabin slider, the mounting plate is provided with a second slide rail in the vertical direction, the control cabin slider fixing seat is located above the second position sensor, the control cabin slider fixing seat can be slidably installed on the second slide rail, and the mounting plate is provided with an introduction cylinder for driving the control cabin slider fixing seat to slide on the second slide rail; after the second position sensor identifies that the control cabin slider rotates to the specified position, the control cabin slider fixing seat descends and realizes matching contact with the control cabin slider to prevent the control cabin slider from rotating; The internal screw sleeve fixed torque automatic tightening device comprises an internal screw sleeve tightening tool, a tightening machine, and a second lifting mechanism. The internal screw sleeve tightening tool can be slidably mounted in the middle of the first slide rail and can slide up and down along the middle of the first slide rail. The tightening machine is mounted on the internal screw sleeve tightening tool and drives the internal screw sleeve tightening tool to rotate through a gear set. The second lifting mechanism is fixedly mounted on the top of the frame and connected to the internal screw sleeve tightening tool, driving the internal screw sleeve tightening tool to slide up and down in the middle of the first slide rail. The fixed torque automatic tightening device for connecting the screw sleeves in the engine and control cabin completes the automatic axial alignment of the engine and the control cabin, and tightens the connecting screw sleeves with a fixed torque. The specific process is as follows: The engine is moved to the positioning seat by the frame manipulator device, the position of the engine slider is measured by the first position sensor, and the servo motor drives the turntable bearing to rotate. When the first position sensor measures that the engine slider meets the position requirement, the engine slider fixing seat falls and cooperates with the engine slider, thereby determining the position relationship of the engine and preventing the engine slider from rotating. The control cabin is carried to the bottom of the clamping air claw by the frame manipulator equipment, and the clamping air claw performs the control cabin grabbing operation. The position of the control cabin slider is measured by the second position sensor, and the rotating motor can rotate the control cabin. When the second position sensor measures that the control cabin slider meets the position requirement, the control cabin slider fixing seat falls and cooperates with the control cabin slider to prevent the control cabin slider from rotating, thereby preliminarily determining the position relationship of the control cabin; The control cabin is lowered by the first lifting mechanism until it just touches the engine, and then a wing fixture is automatically inserted into each side of the engine and the control cabin through the wing fixture installation and removal device, and the two protrusions at the front end of the wing fixture are respectively inserted into the notches of the engine and the control cabin to accurately position the engine and the control cabin; An internal screw sleeve installation tool is manually set at the connection between the engine and the control cabin, and the internal screw sleeve fixed torque automatic tightening device is dropped to the contact position between the engine and the control cabin through the second lifting mechanism, and the rated torque is applied to the internal screw sleeve installation tool, thereby completing the docking of the engine and the control cabin; After the docking is completed, the wing tooling is automatically retracted under the action of the retracting pin assembly, the internal thread sleeve fixed torque automatic tightening device is disengaged, and the product is moved back to the transmission line by the frame manipulator.

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