Hydraulic machine assembly hole modular machining device and method

Abstract

The invention discloses a hydraulic machine assembly hole modular machining device and method.The hydraulic machine assembly hole modular machining method comprises the steps that the hydraulic machine assembly hole modular machining device is installed on a main shaft of a machining machine tool, then a right-angle motor is started, the right-angle motor rotates to drive a reduction gear to rotate, and the reduction gear rotates to drive a transmission gear to rotate; the transmission gear rotates to drive a first turnover plate to rotate, so that a main worm shaft moves in the front-back horizontal direction, and the main worm shaft moves forwards to drive a left half gear and a right half gear to swing left and right; the left half gear and the right half gear swing left and right to drive the left mounting block and the right mounting block to move along the left upper slide way, the left lower slide way, the right upper slide way and the right lower slide way so as to drive the cutter to horizontally and linearly move to complete machining of the assembly hole. Through the function of converting rotary motion into horizontal displacement, rough / finish machining of the hydraulic machine assembly hole can be achieved, and the hydraulic machine assembly hole machining device has the advantages of being high in machining efficiency and precision, large in hole diameter application range, easy to install and convenient to maintain.

Description

Technical Field

[0001] The present invention belongs to the field of advanced manufacturing technologies and equipment. Specifically, it relates to a modular processing device and method for assembly holes of a hydraulic press. Background Art

[0002] The frame of a hydraulic press is composed of structural components such as columns, a moving crossbeam, and tie rods. The structural components are assembled, connected, and transmit loads through the holes on their surfaces, and these holes are the assembly holes of the hydraulic press. The machining accuracy of the assembly holes determines the installation accuracy of the frame, and the installation accuracy of the frame has an important impact on the load transmission and forging performance of the hydraulic press. For example, if the machining error of the assembly holes between the moving crossbeam and the columns is too large, the center of gravity of the moving crossbeam may not exactly fall on the theoretical center line of the hydraulic press. After installation, the lower plane of the moving crossbeam is not perpendicular to the center line of the hydraulic press, and the resulting eccentric load will cause the entire frame to bend, not only causing damage to the die but also seriously affecting the forming accuracy of the forging.

[0003] The assembly holes of a hydraulic press not only require high machining accuracy but also have large hole diameters and various sizes. Traditional hole machining mostly uses special machine tools or general machine tools equipped with standard cutting tools. When machining the large-diameter and multi-size assembly holes on a hydraulic press, these traditional machine tools need to frequently replace cutting tools, fixtures, and measuring tools. It is not only difficult to ensure the machining accuracy and quality consistency of such assembly holes, but also the machining preparation time is long and the machining efficiency is low. Therefore, there is a need for a modular processing device and method for assembly holes of a hydraulic press with high machining efficiency and accuracy, a large hole diameter adaptation range, simple operation, and convenient maintenance. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular processing device and method for assembly holes of a hydraulic press. By converting the rotational motion into a horizontal displacement function, it can achieve fine machining of large-diameter and multi-size assembly holes of a hydraulic press, and has the advantages of high machining efficiency and accuracy, a large hole diameter adaptation range, simple installation, convenient operation, and easy maintenance.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A modular processing device for assembly holes of a hydraulic press includes a housing assembly. A drive module and a transmission module are installed inside the housing assembly. A tool-holding module is installed at the front end of the transmission module, and the drive module is arranged at the rear side of the transmission module and is drivingly connected to the transmission module; The drive module includes a right-angle motor, a reduction gear, and a connecting shaft. The reduction gear is installed on the connecting shaft. A first shaft shoulder is provided at the front end of the connecting shaft, a first circlip groove is provided at the rear end of the connecting shaft, a flat key is provided on the outer contour of the connecting shaft. The reduction gear is positioned by the first shaft shoulder and axially fixed on the connecting shaft by a fixed circlip in the first circlip groove. The connecting shaft is installed on the output shaft of the right-angle motor; The transmission module includes a rear-side frame, a first bearing, a first revolving plate, a rear-side baffle, a main worm shaft, a main worm, an upper sub-worm, a lower sub-worm, an upper worm shaft, a lower worm shaft, a first planetary gear, a second planetary gear, an external gear ring, a front-side frame, a second bearing, a second revolving plate and a front-side baffle. The rear-side frame extends forward with a first cylindrical boss. The first revolving plate is mounted on the first cylindrical boss through the first bearing. A transmission gear is arranged at the rear side of the first revolving plate and is in transmission connection with a reduction gear. The rear-side baffle is mounted on the front end of the first cylindrical boss through bolts. A groove is arranged inside the first cylindrical boss, and a corresponding first through hole is arranged on the rear-side baffle. The rear end of the main worm shaft is arranged in the groove, and the main worm is mounted on the main worm shaft. The front-side frame extends backward with a second cylindrical boss. The second revolving plate is mounted on the second cylindrical boss through the second bearing. The front-side baffle is mounted on the rear end of the second cylindrical boss through bolts. The first revolving plate and the second revolving plate have the same structure and both include a plate body. Upper mounting holes and lower mounting holes are respectively arranged at the upper and lower ends of the plate body. The rear end of the upper worm shaft is mounted in the upper mounting hole of the first revolving plate, and the front end of the upper worm shaft is mounted in the upper mounting hole of the second revolving plate. The rear end of the lower worm shaft is mounted in the lower mounting hole of the first revolving plate, and the front end of the lower worm shaft is mounted in the lower mounting hole of the second revolving plate. The upper sub-worm is mounted in the middle of the upper worm shaft, and the lower sub-worm is mounted in the middle of the lower worm shaft. Both the upper sub-worm and the lower sub-worm are in spiral fit with the main worm. The first planetary gear is mounted on the upper worm shaft and is located on the front side of the upper sub-worm. The second planetary gear is mounted on the lower worm shaft and is located on the front side of the lower sub-worm. The external of the external gear ring is connected to a housing assembly, and internal gear teeth meshing with the first planetary gear and the second planetary gear are arranged inside the external gear ring.

[0006] The knife-holding module includes an upper left connecting plate, a lower left connecting plate, an upper right connecting plate, a lower right connecting plate, a left half gear, a right half gear, a left rack, a right rack and a knife. The upper left connecting plate and the lower left connecting plate are arranged relatively up and down. The left end of the upper left connecting plate and the lower left connecting plate is hinged to the left half gear, and the right end of the upper left connecting plate and the lower left connecting plate is hinged to the front end of the main worm shaft. The upper right connecting plate and the lower right connecting plate are arranged relatively up and down. The left end of the upper right connecting plate and the lower right connecting plate is hinged to the front end of the main worm shaft, and the right end of the upper right connecting plate and the lower right connecting plate is hinged to the right half gear. Both the left half gear and the right half gear are arranged horizontally. An upper left rotating protrusion is arranged on the upper surface of the left half gear, and a lower left rotating protrusion is arranged on the lower surface of the left half gear. An upper right rotating protrusion is arranged on the upper surface of the right half gear, and a lower right rotating protrusion is arranged on the lower surface of the right half gear. A left mounting block is arranged on the front surface of the left rack, and a right mounting block is arranged on the front surface of the right rack.

[0007] The housing assembly includes a motor housing, a first housing, an external flange of the second housing, an upper housing half, and a lower housing half. The motor housing is bolted to the rear end of the first housing. A rear baffle is provided at the rear end of the first housing, and an upper through-hole is formed in the rear baffle. The output shaft of the right-angle motor passes through the upper through-hole and enters the first housing. A motor installation cavity is formed between the motor housing and the rear baffle. The right-angle motor and the reduction gear are both installed in the motor installation cavity. The rear end of the rear-side frame is provided on the front end face of the rear baffle. A front baffle is provided at the front end of the second housing, and a central through-hole is formed in the front baffle. A second through-hole is formed in the second cylindrical boss. The front end of the second main worm shaft passes through the central through-hole and the second through-hole to connect the tool-holding module. The external flange is provided on the outer surface of the external gear ring. The rear end of the external flange is connected to the first housing, and the front end of the external flange is connected to the second housing. The upper housing half and the lower housing half are arranged opposite to each other up and down. An upper horizontal mounting plate is provided inside the upper housing half, and a lower horizontal mounting plate corresponding to the upper horizontal mounting plate is provided inside the lower housing half. An upper half-hole is formed in the front side plate of the upper housing half, and a lower half-hole corresponding to the upper half-hole is formed in the front side plate of the lower housing half. After the upper housing half and the lower housing half are assembled, the upper half-hole and the lower half-hole form a long hole.

[0008] An upper left rotation groove and an upper right rotation groove corresponding to the upper left rotation protrusion and the upper right rotation protrusion are provided on the upper horizontal mounting plate. A lower left rotation groove and a lower right rotation groove corresponding to the lower left rotation protrusion and the lower right rotation protrusion are provided on the lower horizontal mounting plate. An upper left slide bar and a lower left slide bar are respectively provided on the upper surface and the lower surface of the left rack. An upper right slide bar and a lower right slide bar are respectively provided on the upper surface and the lower surface of the right rack. An upper slide way corresponding to the upper left slide bar and the upper right slide bar is provided inside the upper housing half. A lower slide way corresponding to the lower left slide bar and the lower right slide bar is provided inside the lower housing half.

[0009] Flange bolt through-holes for connecting the machine tool spindle or the robot end are provided on the rear side surface of the motor housing.

[0010] The tool is installed on the left mounting block or / and the right mounting block. A displacement sensor is provided on the mounting block where the tool is located to monitor and adjust the displacement accuracy of the left mounting block or / and the right mounting block.

[0011] The modular machining method for the assembly holes of a hydraulic press is implemented based on the above-mentioned modular machining device for the assembly holes of a hydraulic press, and includes the following steps: First, install the modular machining device for the assembly holes of a hydraulic press on the main shaft of a machining tool through the flange bolt through holes provided on the rear side surface of the motor housing. Then, start the right-angle motor. The rotation of the right-angle motor drives the reduction gear to rotate. The rotation of the reduction gear drives the transmission gear to rotate. The transmission gear is arranged at the rear side of the first turntable, so that the rotation of the transmission gear drives the first turntable to rotate. The upper worm shaft and the lower worm shaft are arranged between the first turntable and the second turntable, so that the second turntable, the upper worm shaft and the lower worm shaft all rotate around the central axis of the main worm shaft. Since the first planetary gear and the second planetary gear are respectively arranged on the upper worm shaft and the lower worm shaft, and both the first planetary gear and the second planetary gear are engaged with the internal teeth of the external gear ring, the first planetary gear and the second planetary gear rotate around the main worm shaft while rotating around their own axes. In addition, the upper auxiliary worm and the lower auxiliary worm respectively installed on the upper worm shaft and the lower worm shaft rotate to drive the main worm to move linearly along the axial direction, so that the main worm shaft moves in the front-rear horizontal direction. When the main worm shaft moves forward, it drives the left half gear and the right half gear to swing left and right through the upper left connecting plate, the lower left connecting plate, the upper right connecting plate and the lower right connecting plate. The left and right swinging of the left half gear and the right half gear drives the left mounting block and the right mounting block to move along the upper left slideway, the lower left slideway, the upper right slideway and the lower right slideway, thereby driving the tool to move horizontally in a straight line to complete the machining of the assembly holes.

[0012] The transmission module of the machining device of the present invention includes a rear side frame, a first bearing, a first turntable, a rear side baffle, a main worm shaft, a main worm, an upper auxiliary worm, a lower auxiliary worm, an upper worm shaft, a lower worm shaft, a first planetary gear, a second planetary gear, an external gear ring, a front side frame, a second bearing, a second turntable and a front side baffle. The first turntable and the second turntable are arranged opposite to each other left and right, so that the overall machining device presents an axisymmetric structure, which has the characteristics of simple installation, convenient operation and easy maintenance.

[0013] The transmission module of the machining device of the present invention adopts planetary worm transmission, which has a strong self-locking ability and a larger transmission ratio compared with gear transmission, improving the stability of the machining device. In addition, the upper worm shaft and the lower worm shaft of the transmission module of the present invention cooperate with the main worm shaft, reducing the dynamic load during the transmission of the transmission module and improving the smoothness of the transmission.

[0014] The tool-holding module of the machining device of the present invention is structurally compact. When converting the reciprocating linear motion of the main worm shaft into the horizontal movement of the tool, it has a reverse self-locking ability, and the configured displacement sensor improves the position accuracy of the tool during movement. Description of the Drawings

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

[0016] Figure 2 is Figure 1 explosion structure schematic diagram.

[0017] Figure 3 is the explosion structure schematic diagram of the housing assembly of the present invention.

[0018] Figure 4 is the overall cross-sectional view of the processing device of the present invention.

[0019] Figure 5 is the structure schematic diagram of the transmission module of the present invention.

[0020] Figure 6 is the front cross-sectional view of the epicyclic gear train of the transmission module of the present invention.

[0021] Figure 7 is the partial side cross-sectional view of the transmission module of the present invention.

[0022] Figure 8 is the explosion structure schematic diagram of the main worm shaft and main worm assembly in the present invention.

[0023] Figure 9 is the explosion structure schematic diagram of the upper sub-worm and upper worm shaft and lower sub-worm and lower worm shaft assembly in the present invention.

[0024] Figure 10 is the explosion structure schematic diagram of the front side frame and front side baffle assembly in the present invention.

[0025] Figure 11 is the explosion structure schematic diagram of the rear side frame and rear side baffle assembly in the present invention.

[0026] Figure 12 is the structure schematic diagram of the drive module of the present invention Figure 13 is the front structure schematic diagram of the drive module of the present invention Figure 14 is the explosion structure schematic diagram of the knife-holding module of the present invention Figure 15 is the structure schematic diagram of the full stroke of the knife-holding module of the present invention Figure 16 is the structure schematic diagram of the empty stroke of the knife-holding module of the present invention Figure 17 is the partial structure schematic diagram of the connecting block of the present invention Specific embodiments

[0027] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0028] Embodiment 1 Such as Figure 1-17As shown, a modular machining device for the assembly holes of a hydraulic press includes a housing assembly. A drive module and a transmission module are installed inside the housing assembly. A tool-holding module is installed at the front end of the transmission module, and the drive module is arranged at the rear side of the transmission module and is drivingly connected to the transmission module; The drive module includes a right-angle motor 2, a reduction gear 3 and a connecting shaft 4. The reduction gear 3 is installed on the connecting shaft 4. A first shaft shoulder is provided at the front end of the connecting shaft 4, a first snap ring groove is provided at the rear end of the connecting shaft 4, a flat key is provided on the outer contour of the connecting shaft 4. The reduction gear 3 is positioned by the first shaft shoulder and is axially fixed on the connecting shaft 4 by a fixed snap ring in the first snap ring groove. The connecting shaft 4 is installed on the output shaft of the right-angle motor 2; The transmission module can convert the rotational motion of the right-angle motor 2 into the linear motion of the main worm shaft 12. The transmission module includes a rear-side frame 7, a first bearing 8, a first revolving plate 9, a rear-side baffle 10, a main worm shaft 12, a main worm 13, an upper sub-worm 14, a lower sub-worm 32, an upper worm shaft 15, a lower worm shaft 33, a first planetary gear 16, a second planetary gear 35, an outer gear ring 11, a front-side frame 19, a second bearing 20, a second revolving plate 21 and a front-side baffle 22. The rear-side frame 7 extends forward with a first cylindrical boss. The first revolving plate 9 is installed on the first cylindrical boss through the first bearing 8. A transmission gear 5 is arranged at the rear side of the first revolving plate 9. The transmission gear 5 is in transmission connection with a reduction gear 3. The rear-side baffle 10 is installed at the front end of the first cylindrical boss through bolts. A groove is arranged inside the first cylindrical boss. The groove is a cylindrical keyed groove. A corresponding first through-hole is arranged on the rear-side baffle 10. The first through-hole is a cylindrical keyed through-hole. Both the keyed groove and the keyed through-hole can determine the position accuracy of the main worm shaft 12 and restrict the axial rotation freedom when the main worm shaft 12 moves back and forth axially. The rear end of the main worm shaft 12 is arranged in the groove. The main worm 13 is installed on the main worm shaft 12. The front-side frame 19 extends backward with a second cylindrical boss. The second revolving plate 21 is installed on the second cylindrical boss through the second bearing 20. The front-side baffle 22 is installed at the rear end of the second cylindrical boss through bolts. The first revolving plate 9 and the second revolving plate 21 have the same structure and both include a plate body. Upper mounting holes and lower mounting holes are respectively arranged at the upper and lower ends of the plate body. The rear end of the upper worm shaft 15 is installed in the upper mounting hole of the first revolving plate 9, and the front end of the upper worm shaft 15 is installed in the upper mounting hole of the second revolving plate 21. The rear end of the lower worm shaft 33 is installed in the lower mounting hole of the first revolving plate 9, and the front end of the lower worm shaft 33 is installed in the lower mounting hole of the second revolving plate 21. The upper sub-worm 14 is installed in the middle of the upper worm shaft 15, and the lower sub-worm 32 is installed in the middle of the lower worm shaft 33. Both the upper sub-worm 14 and the lower sub-worm 32 are in spiral fit with the main worm 13. The first planetary gear 16 is installed on the upper worm shaft 15 and is located in front of the upper sub-worm 14. The second planetary gear 35 is installed on the lower worm shaft 33 and is located in front of the lower sub-worm 32. The outside of the outer gear ring 11 is connected to the housing assembly. Inner gear teeth meshing with the first planetary gear 16 and the second planetary gear 35 are arranged inside the outer gear ring 11. The first bearing 8 can reduce the friction between the first revolving plate 9 and the rear-side frame 7, and the second bearing 20 can reduce the friction between the second revolving plate 21 and the front-side frame 19. The upper sub-worm 14, the upper worm shaft 15 and the first planetary gear 16 are symmetrically arranged with the lower sub-worm 32, the lower worm shaft 33 and the second planetary gear 35 up and down, which can reduce the dynamic load when the transmission module performs force transmission, thereby increasing the transmission smoothness of the transmission module.

[0029] The right-angle motor 2 of the driving module rotates to drive the reduction gear 3 to rotate, and then drives the transmission gear 5 to rotate. The rotation of the transmission gear 5 drives the first turnover plate 9 to perform a circular motion, and further enables the upper worm shaft 15 and the lower worm shaft 33 to perform a circular motion around the axis of the main worm 13. The first planetary gear 16 and the second planetary gear 35 are arranged in the middle of the upper worm shaft 15 and the lower worm shaft 33. The first planetary gear 16 and the second planetary gear 35 rotate around their own axes while cooperating with the external gear ring 11 during the revolution of the upper worm shaft 15 and the lower worm shaft 33. When the upper worm shaft 15 and the lower worm shaft 33 rotate, they drive the upper auxiliary worm 14 and the lower auxiliary worm 32 to rotate through key connections. Further, both the upper auxiliary worm 14 and the lower auxiliary worm 32 are in external spiral cooperation with the main worm 13, so that the upper auxiliary worm 14 and the lower auxiliary worm 32 drive the main worm 13 fixed on the main worm shaft 12 and the main worm shaft 12 to perform a linear motion along its axis together.

[0030] The knife - holding module includes an upper - left connecting plate 36, a lower - left connecting plate 37, an upper - right connecting plate 38, a lower - right connecting plate 39, a left half - gear 24, a right half - gear 28, a left rack 27, a right rack 31, and a cutter 30. The upper - left connecting plate 36 and the lower - left connecting plate 37 are arranged vertically opposite to each other. The left end of the upper - left connecting plate 36 and the lower - left connecting plate 37 is hinged with the left half - gear 24, and the front end of the main worm shaft 12 is hinged with the right ends of the upper - left connecting plate 36 and the lower - left connecting plate 37. The upper - right connecting plate 38 and the lower - right connecting plate 39 are arranged vertically opposite to each other. The left end of the upper - right connecting plate 38 and the lower - right connecting plate 39 is hinged with the front end of the main worm shaft 12, and the right end of the upper - right connecting plate 38 and the lower - right connecting plate 39 is hinged with the right half - gear 28. Both the left half - gear 24 and the right half - gear 28 are horizontally arranged. An upper - left rotating protrusion is provided on the upper surface of the left half - gear 24, a lower - left rotating protrusion is provided on the lower surface of the left half - gear 24, an upper - right rotating protrusion is provided on the upper surface of the right half - gear 28, and a lower - right rotating protrusion is provided on the lower surface of the right half - gear 28. A left mounting block 25 is provided on the front surface of the left rack 27, and a right mounting block 34 is provided on the front surface of the right rack 31. Further, the main worm shaft 12 is in the shape of a stepped shaft, and flat keys are provided at both ends for guiding and rotational limiting. The rotational freedom between the main worm shaft 12 and the main worm 13 is restricted by a flat key. A second shaft shoulder and a second snap - ring groove are provided in the middle of the main worm shaft 12. The main worm 13 is mounted in the middle of the main worm shaft 12 by shaft - shoulder positioning, and the end of the main worm 13 is fixed by a second snap - ring. The flat key restricts the rotation of the main worm 13. A horizontally - through hole communicating left and right is provided at the front end of the main worm shaft 12. A connecting block 17 is provided in the horizontally - through hole by a fastening bolt. The left end of the connecting block 17 is hinged with the upper - left connecting plate 36 and the lower - left connecting plate 37, and the right end of the connecting block 17 is hinged with the upper - right connecting plate 38 and the lower - right connecting plate 39. A gear - rack fit is formed between the left half - gear 24 and the left rack 27 and between the right half - gear 28 and the right rack 31, so that the rotation of the left half - gear 24 drives the translation of the left rack 27, and the rotation of the right half - gear 28 drives the translation of the right rack 31.

[0031] Furthermore, third snap - ring grooves are provided at the front and rear ends of the upper secondary worm 14 and the lower secondary worm 32, and a third shaft shoulder and a fourth snap - ring groove are provided in the middle part. The first planetary gear 16 and the second planetary gear 35 are mounted in the middle part of the upper worm shaft 15 and the lower worm shaft 33 by shaft - shoulder positioning and are fixed by a fourth snap - ring.

[0032] The housing assembly includes a motor housing 1, a first housing 6, a second housing 18, an external flange 44, an upper housing 23 and a lower housing 26. The motor housing 1 is bolted to the rear end of the first housing 6. A rear baffle is provided at the rear end of the first housing 6, and an upper through hole is formed in the rear baffle. The output shaft of the right-angle motor 2 passes through the upper through hole and enters the first housing 6. A motor installation cavity is formed between the motor housing 1 and the rear baffle. The right-angle motor 2 and the reduction gear 3 are both installed in the motor installation cavity. The rear end of the rear-side frame 7 is provided on the front end face of the rear baffle. A front baffle is provided at the front end of the second housing 18, and a central through hole is formed in the front baffle. A second through hole is provided on the second cylindrical boss. The front end of the second main worm shaft 12 passes through the central through hole and the second through hole to connect the tool-holding module. The external flange 44 is provided on the outer surface of the external gear ring 11. The rear end of the external flange 44 is connected to the first housing 6, and the front end of the external flange 44 is connected to the second housing 18. The external flange 44 provided outside the external gear ring 11 makes the transmission module as a whole cylindrical, which can reduce the space volume of the processing device of the present invention on the premise of ensuring the normal movement of the epicyclic gear train inside the external gear ring 11.

[0033] The upper housing 23 and the lower housing 26 are arranged opposite to each other up and down. An upper horizontal mounting plate is provided inside the upper housing 23, and a lower horizontal mounting plate corresponding to the upper horizontal mounting plate is provided inside the lower housing 26. An upper half hole is formed in the front side plate of the upper housing 23, and a lower half hole corresponding to the upper half hole is formed in the front side plate of the lower housing 26. After the upper housing 23 and the lower housing 26 are assembled, the upper half hole and the lower half hole form a long hole.

[0034] An upper left rotation groove and an upper right rotation groove corresponding to the upper left rotation protrusion and the upper right rotation protrusion are provided on the upper horizontal mounting plate, and a lower left rotation groove and a lower right rotation groove corresponding to the lower left rotation protrusion and the lower right rotation protrusion are provided on the lower horizontal mounting plate. An upper left sliding strip 40 and a lower left sliding strip are respectively provided on the upper surface and the lower surface of the left rack 27, and an upper right sliding strip 41 and a lower right sliding strip are respectively provided on the upper surface and the lower surface of the right rack 31. An upper sliding track 42 corresponding to the upper left sliding strip 40 and the upper right sliding strip 41 is provided inside the upper housing 23, and a lower sliding track 43 corresponding to the lower left sliding strip and the lower right sliding strip is provided inside the lower housing 26.

[0035] Flange bolt through holes for connecting the machine tool spindle or the robot end are provided on the rear side surface of the motor housing 1.

[0036] The cutting tool 30 is installed on the left mounting block 25 or / and the right mounting block 34. Displacement sensors for monitoring and adjusting the displacement accuracy of the cutting tool 30 are provided on the sides of the left mounting block 25 and the right mounting block 34. The displacement sensors can detect the radial relative movement distance of the cutting tool 30 to ensure the displacement accuracy. According to the usage requirements, if the cutting tool 30 is installed on the left mounting block 25, a counterweight 29 is installed on the right mounting block 34, or if the cutting tool 30 is installed on the right mounting block 34, a counterweight 29 is installed on the left mounting block 25. Different-diameter cutting tools 30 can also be installed on the left mounting block 25 and the right mounting block 34 to achieve synchronous machining of different hole diameters and improve production efficiency. The transmission module of the processing device of the present application includes a rear side frame 7, a first bearing 8, a first turnover plate 9, a rear side baffle 10, a main worm shaft 12, a main worm 13, an upper auxiliary worm 14, a lower auxiliary worm 32, an upper worm shaft 15, a lower worm shaft 33, a first planetary gear 16, a second planetary gear 35, an external gear ring 11, a front side frame 19, a second bearing 20, a second turnover plate 21, and a front side baffle 22. The first turnover plate 9 and the second turnover plate 21 are arranged opposite to each other left and right, making the overall processing device present an axisymmetric structure, which has the characteristics of simple installation, convenient operation, and easy maintenance.

[0037] The transmission module of the processing device of the present invention adopts planetary worm drive, which has a strong self-locking ability and a larger transmission ratio compared with gear drive, improving the stability of the processing device. In addition, the upper worm shaft 15 and the lower worm shaft 33 of the transmission module of the present invention cooperate with the main worm shaft 12, reducing the dynamic load during the transmission of the transmission module and improving the smoothness of the transmission.

[0038] The cutting tool holding module of the processing device of the present invention has a compact structure. When converting the reciprocating linear motion of the main worm shaft 12 into the horizontal movement of the cutting tool 30, it has reverse self-locking ability, and the configured displacement sensor improves the position accuracy of the cutting tool 30 during movement.

[0039] Embodiment 2 The modular machining method for the assembly holes of a hydraulic press is implemented based on the above-mentioned modular machining device for the assembly holes of a hydraulic press, and includes the following steps: First, install the modular machining device for the assembly holes of a hydraulic press on the main shaft of a machining tool through the flange bolt through-holes provided on the rear side of the motor housing 1. Then, start the right-angle motor 2. The rotation of the right-angle motor 2 drives the reduction gear 3 to rotate. The rotation of the reduction gear 3 drives the transmission gear 5 to rotate. The transmission gear 5 is arranged at the rear side of the first turntable 9, so that the rotation of the transmission gear 5 drives the first turntable 9 to rotate. The upper worm shaft 15 and the lower worm shaft 33 are arranged between the first turntable 9 and the second turntable 21, so that the second turntable 21, the upper worm shaft 15 and the lower worm shaft 33 all rotate around the central axis of the main worm shaft 12. Since the first planetary gear 16 and the second planetary gear 35 are respectively arranged on the upper worm shaft 15 and the lower worm shaft 33, and both the first planetary gear 16 and the second planetary gear 35 mesh with the internal teeth of the external gear ring 11, the first planetary gear 16 and the second planetary gear 35 rotate around the main worm shaft 12 while rotating on their own axes. In addition, the upper auxiliary worm 14 and the lower auxiliary worm 32 respectively installed on the upper worm shaft 15 and the lower worm shaft 33 rotate to drive the main worm 13 to move linearly along the axial direction, so that the main worm shaft 12 moves in the front-back horizontal direction. When the main worm shaft 12 moves forward, it drives the left half gear 24 and the right half gear 28 to swing left and right through the upper left connecting plate 36, the lower left connecting plate 37, the upper right connecting plate 38 and the lower right connecting plate 39. The left and right swinging of the left half gear 24 and the right half gear 28 drives the left mounting block 25 and the right mounting block 34 to move along the upper left slideway 42, the lower left slideway 43, the upper right slideway 42 and the lower right slideway 43, thereby driving the tool 30 to move horizontally in a straight line to complete the machining of the assembly holes. During the machining of the assembly holes, when the main shaft of the machine tool rotates, the machining device of the present application rotates with the main shaft of the machine tool. The tool 30 is driven to move by the right-angle motor 2. When the required displacement distance is reached, the right-angle motor 2 stops according to the feedback signal of the displacement sensor, and the tool-holding module stops moving accordingly, realizing the precision control of the displacement size of the tool 30 in a small range. When the main shaft of the machine tool does not move and the workpiece rotates, the machining device of the present application can realize the horizontal movement of the tool 30 to improve the machining accuracy of the workpiece, or can also repair the position of the bottom hole axis by adjusting the parameters during the rotation of the workpiece.

[0040] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; still can modify the present invention or make equivalent replacements, and any modification or partial replacement without departing from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A modular processing device for assembly holes of a hydraulic press, characterized in that: It includes a housing assembly, in which a driving module and a transmission module are installed, a knife holding module is installed at the front end of the transmission module, and the driving module is arranged at the rear side of the transmission module and is transmission-connected to the transmission module; The driving module includes a right-angle motor, a reduction gear and a connecting shaft, the reduction gear is installed on the connecting shaft, the front end of the connecting shaft is provided with a first shaft shoulder, the rear end of the connecting shaft is provided with a first retaining ring groove, a flat key is provided on the outer contour of the connecting shaft, the reduction gear is positioned by the first shaft shoulder, and is axially fixed to the connecting shaft by a fixed retaining ring installed in the first retaining ring groove, and the connecting shaft is installed on the output shaft of the right-angle motor; The transmission module includes a rear frame, a first bearing, a first turnover plate, a rear baffle, a main worm shaft, a main worm, an upper secondary worm, a lower secondary worm, an upper worm shaft, a lower worm shaft, a first planetary gear, a second planetary gear, an outer gear ring, a front frame, a second bearing, a second turnover plate and a front baffle, the rear frame extends forward and is provided with a first cylindrical boss, the first turnover plate is installed on the first cylindrical boss through the first bearing, a transmission gear is provided on the rear side of the first turnover plate, the transmission gear is connected to the reduction gear transmission, the rear baffle is installed on the front end of the first cylindrical boss through bolts, a groove is provided inside the first cylindrical boss, a corresponding first through hole is provided on the rear baffle, the rear end of the main worm shaft is provided in the groove, the main worm is installed on the main worm shaft, the front frame extends backward and is provided with a second cylindrical boss, the second turnover plate is installed on the second cylindrical boss through the second bearing, and the front baffle The first and second rotating plates are installed at the rear end of the second cylindrical boss by bolts, and the first and second rotating plates have the same structure and both include a plate body, and the upper and lower ends of the plate body are respectively provided with an upper mounting hole and a lower mounting hole, the rear end of the upper worm shaft is installed in the upper mounting hole of the first rotating plate, the front end of the upper worm shaft is installed in the upper mounting hole of the second rotating plate, the rear end of the lower worm shaft is installed in the lower mounting hole of the first rotating plate, and the front end of the lower worm shaft is installed in the lower mounting hole of the second rotating plate, the upper auxiliary worm is installed in the middle part of the upper worm shaft, and the lower auxiliary worm is installed in the middle part of the lower worm shaft, the upper auxiliary worm and the lower auxiliary worm are both spirally matched with the main worm, the first planetary gear is installed on the upper worm shaft and is located at the front side of the upper auxiliary worm, the second planetary gear is installed on the lower worm shaft and is located at the front side of the lower auxiliary worm, the outside of the outer gear ring is connected to the housing assembly, and the inside of the outer gear ring is provided with internal gear teeth meshing with the first planetary gear and the second planetary gear.

2. The modular processing device for assembly holes of a hydraulic press according to claim 1, characterized in that: The knife holding module comprises an upper left connecting plate, a lower left connecting plate, an upper right connecting plate, a lower right connecting plate, a left half gear, a right half gear, a left rack, a right rack and a cutter. The upper left connecting plate and the lower left connecting plate are arranged relatively to each other in the upper and lower parts. The left ends of the upper left connecting plate and the lower left connecting plate are hinged to the left half gear, and the right ends of the upper left connecting plate and the lower left connecting plate are hinged to the front end of the main worm shaft. The upper right connecting plate and the lower right connecting plate are arranged relatively to each other in the upper and lower parts. The left ends of the upper right connecting plate and the lower right connecting plate are hinged to the front end of the main worm shaft, and the right ends of the upper right connecting plate and the lower right connecting plate are hinged to the right half gear. The left half gear and the right half gear are both arranged horizontally. An upper left rotating protrusion is arranged on the upper surface of the left half gear, a lower left rotating protrusion is arranged on the lower surface of the left half gear, an upper right rotating protrusion is arranged on the upper surface of the right half gear, a lower right rotating protrusion is arranged on the lower surface of the right half gear, a left mounting block is arranged on the front surface of the left rack, and a right mounting block is arranged on the front surface of the right rack.

3. The modular processing device for assembly holes of a hydraulic press according to claim 2, characterized in that: The housing assembly includes a motor housing, a first housing, an external flange of a second housing, an upper housing and a lower housing. The motor housing is connected to the rear end of the first housing by bolts. A rear baffle is provided at the rear end of the first housing. An upper through hole is provided on the rear baffle. The output shaft of the right-angle motor passes through the upper through hole and enters the first housing. A motor installation cavity is formed between the motor housing and the rear baffle. The right-angle motor and the reduction gear are both installed in the motor installation cavity. The rear end of the rear frame is arranged on the front end surface of the rear baffle. A front baffle is provided at the front end of the second housing, a central through hole is provided on the front baffle, a second through hole is provided on the second cylindrical boss, a front end of the second main worm shaft passes through the central through hole and the second through hole to connect with the knife holding module, an external flange is provided on the outer surface of the outer gear ring, a rear end of the external flange is connected to the first housing, and a front end of the external flange is connected to the second housing; The upper casing and the lower casing are arranged opposite to each other up and down, an upper horizontal mounting plate is arranged in the upper casing, a lower horizontal mounting plate corresponding to the upper horizontal mounting plate is arranged in the lower casing, an upper half hole is opened on the front side plate of the upper casing, and a lower half hole corresponding to the upper half hole is opened on the front side plate of the lower casing. After the upper casing and the lower casing are assembled, the upper half hole and the lower half hole form a long strip hole.

4. The modular processing device for assembly holes of a hydraulic press according to claim 3, characterized in that: The upper horizontal mounting plate is provided with an upper left rotation groove and an upper right rotation groove corresponding to the upper left rotation protrusion and the upper right rotation protrusion, and the lower horizontal mounting plate is provided with a lower left rotation groove and a lower right rotation groove corresponding to the lower left rotation protrusion and the lower right rotation protrusion; An upper left slider and a lower left slider are respectively arranged on the upper surface and the lower surface of the left rack, an upper right slider and a lower right slider are respectively arranged on the upper surface and the lower surface of the right rack, an upper slideway corresponding to the upper left slider and the upper right slider is arranged in the upper half of the casing, and a lower slideway corresponding to the lower left slider and the lower right slider is arranged in the lower half of the casing.

5. The modular processing device for assembly holes of a hydraulic press according to claim 4, characterized in that: A flange bolt through hole for connecting to a machine tool spindle or a robot end is arranged on the rear side of the motor housing.

6. The modular processing device for assembly holes of a hydraulic press according to claim 5, characterized in that: The tool is mounted on the left mounting block or / and the right mounting block, and a displacement sensor is arranged on the mounting block where the tool is located to monitor and adjust the displacement accuracy of the left mounting block or / and the right mounting block.

7. A modular processing method for assembly holes of a hydraulic press, implemented based on the modular processing device for assembly holes of a hydraulic press as claimed in any one of claims 1 to 6, characterized in that: The invention comprises the following steps: firstly, the modular processing device for the assembly hole of the hydraulic press is installed on the main shaft of the processing machine tool through the flange bolt through hole arranged on the rear side of the motor housing, and then the right-angle motor is started, the rotation of the right-angle motor drives the reduction gear to rotate, the rotation of the reduction gear drives the transmission gear to rotate, the transmission gear is arranged on the rear side of the first turnover plate, so that the rotation of the transmission gear drives the first turnover plate to rotate, the upper worm shaft and the lower worm shaft are arranged between the first turnover plate and the second turnover plate so that the second turnover plate, the upper worm shaft and the lower worm shaft all rotate around the central axis of the main worm shaft, since the first planetary gear and the second planetary gear are respectively arranged on the upper worm shaft and the lower worm shaft, and the first planetary gear and the second The planetary gears are meshed with the inner teeth of the outer gear ring so that the first planetary gear and the second planetary gear rotate on their own while revolving around the main worm shaft. In addition, the upper auxiliary worm and the lower auxiliary worm respectively installed on the upper worm shaft and the lower worm shaft rotate to drive the main worm to move in an axial linear motion, thereby causing the main worm shaft to move in a front-to-rear horizontal direction. The main worm shaft moves forward and drives the left half gear and the right half gear to swing left and right through the upper left connecting plate, the lower left connecting plate, the upper right connecting plate and the lower right connecting plate. The left and right swings of the left half gear and the right half gear drive the left mounting block and the right mounting block to move along the upper left slide, the lower left slide, the upper right slide and the lower right slide, thereby driving the tool to move horizontally in a linear motion to complete the machining of the assembly hole.

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