Servo closed double-point precision press

Abstract

The application discloses a servo closed double-point precision press, which comprises a machine body, a sliding block, a servo driving component, a dynamic balance component, a servo die adjusting component, a gas pressure adjusting component, a sliding block balance component, a continuous lubricating component, an information detecting component, a leveling and damping component, a maintenance platform and a cooling component; the servo driving component is installed at the middle position of the upper part of the machine body; the servo die adjusting component is installed in the sliding block; the gas pressure adjusting component is installed at the rear side of the upper part of the machine body; the dynamic balance component is installed at the middle position of the top of the machine body, and the sliding block balance component is installed at the two sides of the sliding block; the continuous lubricating component is installed at the rear side below the machine body; the information detecting component is installed on the machine body; the leveling and damping component is installed at the four corners of the bottom of the machine body; the maintenance platform is installed at the outer side of the upper part of the machine body; and the cooling component is installed on the maintenance platform. The servo closed double-point precision press can quickly, accurately and flexibly drive the sliding block to move, so that the working speed of the press is faster, the working precision is higher, and the adaptability is better.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of servo press, and particularly relates to a servo closed double-point precision press. BACKGROUND

[0002] The mechanical press is a forging press driven by crank connecting rod or toggle lever mechanism, cam mechanism or screw mechanism, which is used for pressure processing of materials, and is used for processing parts by applying strong pressure to the blank to deform and break it. The servo press is also called servo press, which is usually driven and controlled by a servo motor, and can realize full-process closed-loop control of the pressing force and the pressing depth in the pressure assembly process, so as to realize online quality management and precise pressure assembly.

[0003] According to the different structure forms of the bed body, the press can be divided into open press or closed press; according to the different number of driving connecting rods, the press can be divided into single-point press or multi-point press such as double-point press; according to whether the slide block is one or two, the press can be divided into single-action press or double-action press.

[0004] The existing mechanical press usually uses a motor to drive a flywheel to rotate and store energy, and then releases the kinetic energy of the flywheel to drive the slide block to move by controlling the clutch. For example, the closed double-point press disclosed in Chinese authorized patent document No. CN109591359B includes a rack, a clutch component, a slide block component, a balance cylinder component, a signaling component, a protective fence component and a pneumatic pipeline component. The clutch component includes a motor, a crankshaft, a flywheel, a transmission shaft, a gland and an idler shaft. The mechanical press of this type has the disadvantages of slow working speed and uncontrollable flywheel kinetic energy release, so the motion accuracy of the slide block is not high, which reduces the use performance of the press.

[0005] Therefore, it is necessary to improve the existing servo press. SUMMARY

[0006] In view of the above technical problems, the present application aims to provide a servo closed double-point precision press.

[0007] The technical scheme of the present application is as follows:

[0008] The present application aims to provide a servo closed double-point precision press, which comprises a machine body and a slide block installed on the machine body, and further comprises a servo transmission component, a dynamic balance component, a servo mold adjusting component, a gas pressure adjusting component, a slide block balancing component, a continuous lubricating component, an information detecting component, a leveling and damping adjusting component, a maintenance platform and a cooling component.

[0009] The servo driving part is installed in the middle of the upper part of the machine body and connected with the slider for driving the slider to move up and down to punch the parts; the servo mode adjusting part is installed in the slider for quickly and accurately adjusting the position of the slider when the servo driving part stops; the air pressure adjusting part is installed in the rear side of the upper part of the machine body and cooperates with the slider balancing part for automatically adjusting the working air pressure of the press according to the working requirement; the dynamic balancing part is installed in the middle of the top of the machine body and the slider balancing parts are installed on the two sides of the slider respectively, both of which are used to reduce the inertia of the slider; the continuous lubricating part is installed in the lower rear side of the machine body for providing continuous oil lubrication for the slider, the balancer and the servo driving part in the press; the information detecting part is installed on the machine body for detecting the information such as the temperature generated by the press during use, the position of the slider, the output tonnage of the press and the adjusting distance of the slider; the leveling and damping part is installed in the four corners of the bottom of the machine body for ensuring the levelness of the press with the ground and reducing the influence of the working vibration of the press on the ground; the maintenance platform is installed on the upper outer side of the machine body for the workers to reach the top of the press for operation and maintenance; the cooling part is installed on the maintenance platform and connected with the servo driving part for providing cooling for the servo driving part.

[0010] Preferably, the servo driving part comprises a whole eccentric shaft, a first planetary gear reduction box and a second planetary gear reduction box installed at the two ends of the whole eccentric shaft, and a first large torque servo motor and a second large torque servo motor connected with the first planetary gear reduction box and the second planetary gear reduction box respectively, the first large torque servo motor and the second large torque servo motor are installed on the machine body through flanges, the whole eccentric shaft has two opposite and side-by-side spaced crank handles, the first balancing plate and the second balancing plate are installed on the opposite sides of the two crank handles respectively.

[0011] Preferably, the dynamic balancing part comprises a second box body arranged in the middle of the top of the machine body, first adjusting guide rails and second adjusting guide rails symmetrically arranged on the two inner side walls of the second box body and extending vertically, balancing sliders slidably arranged at the two ends of the first adjusting guide rails and the second adjusting guide rails respectively, first pin shafts and second pin shafts symmetrically and spaced arranged in the balancing sliders, counterweight parts arranged above the first pin shafts and the second pin shafts corresponding to the positions of the balancing sliders respectively, and first connecting rods and second connecting rods arranged below the first pin shafts and the second pin shafts respectively.

[0012] Any one of the counterweight components comprises first counterweight blocks and second counterweight blocks stacked in sequence from bottom to top, the first counterweight blocks being larger in thickness than the second counterweight blocks; the lower ends of the first and second connecting rods are respectively provided with first and second connecting rod covers, the first and second connecting rod covers and the first and second connecting rods are correspondingly assembled on the integral eccentric shaft, and the first and second balance plates are respectively arranged on the opposite sides of the first and second connecting rods.

[0013] Preferably, the servo adjusting mode component comprises first boxes with inner cavities arranged on both sides above the slider, first and second pistons respectively slidably arranged in the inner cavities of the two first boxes, first and second copper pads respectively arranged in the recess cavities on the upper ends of the first and second pistons, first and second adjusting screws connected with the first and second copper pads, first and second limit rings respectively arranged in the inner cavities of the two first boxes, first and second worms respectively arranged on the first and second adjusting screws, first and second worm gears meshing with the first and second worms, servo motors connected with the first and second worms, and first and second gland nuts respectively arranged at the top openings of the two first boxes.

[0014] The outer walls of the oil holes of the two first boxes are respectively provided with first and second pressing blocks, the first and second pressing blocks are respectively provided with first and second high-pressure oil pipes communicating with the inner cavities of the two first boxes, and the first and second high-pressure oil pipes are connected to a hydraulic overload pump through a total high-pressure oil pipe.

[0015] The first worm gear is connected with the first adjusting screw, and the second worm gear is connected with the second adjusting screw through a key, and the first and second worms are respectively movably arranged in first and second through holes formed in the two first boxes.

[0016] The upper ends of the first and second adjusting screws are respectively provided with first and second nuts, the first and second nuts are respectively arranged in recess cavities formed in the lower ends of first and second guide columns, the first and second guide columns are respectively arranged through the avoiding through holes on the upper side of the body, and the upper ends of the third and fourth connecting rods are respectively provided with third and fourth connecting rod covers, the third and fourth connecting rods are combined with the third and fourth connecting rod covers and are assembled on the integral eccentric shaft and are respectively arranged on the opposite sides of the first and second balance plates.

[0017] Preferably, the information detecting component comprises temperature sensors for detecting the working temperature of the integral eccentric shaft, the first planetary gear reduction box, the second planetary gear reduction box, the third connecting rod and the fourth connecting rod, a rotary encoder mounted on the integral eccentric shaft, a first hydraulic sensor and a second hydraulic sensor mounted on the first pressing block and the second pressing block respectively, and a first angle sensor and a second angle sensor mounted on the first worm and the second worm respectively.

[0018] Preferably, the maintenance platform comprises a plurality of mounting brackets mounted on the outside of the machine body upper portion, a pedal mounted on any mounting bracket, and a split fence mounted on the pedal, and a ladder mounted on the rear side of the machine body and passing through the pedal.

[0019] Preferably, the cooling component comprises a first cooler mounted on one side of the pedal for cooling the first large torque servo motor and the second large torque servo motor, and a second cooler mounted on the other side of the pedal for cooling the first planetary gear reduction box and the second planetary gear reduction box.

[0020] Preferably, the slider balancing component comprises a first bracket and a second bracket mounted on the two ends of the slider respectively, and a first balancing cylinder and a second balancing cylinder connected with the first bracket and the second bracket respectively; the air pressure adjusting component comprises an air bag mounted on the rear side of the machine body upper portion, an air pressure sensor and an electronic pressure regulating valve mounted on the air bag.

[0021] The first balancing cylinder and the second balancing cylinder are symmetrically mounted on the two sides of the machine body through flanges, and the first balancing cylinder and the second balancing cylinder are connected with the air bag through a first pipeline and a second pipeline respectively; the first bracket and the second bracket are connected with the piston rods of the first balancing cylinder and the second balancing cylinder respectively.

[0022] Preferably, the continuous lubrication component comprises a lubrication station mounted on the rear side below the bottom of the machine body, a first oil distribution block mounted on the top of the machine body and connected with the oil line of the lubrication station for distributing lubricating oil to the servo transmission component, a second oil distribution block mounted in the slider and connected with the oil line of the lubrication station for distributing lubricating oil to the slider, and a third oil distribution block mounted on the machine body and connected with the oil line of the lubrication station for distributing lubricating oil to the slider balancing component.

[0023] Preferably, the leveling and damping component comprises damping pads mounted on the four corners of the bottom of the machine body, and adjusting shims mounted between the four corners of the machine body and the corresponding damping pads.

[0024] Compared with the prior art, the advantages of the present application are:

[0025] (1) The servo closed double-point precision press of the present application is provided with servo transmission components, which can quickly, accurately and flexibly drive the slide block to move, so that the press has faster working speed, higher working precision and better adaptability.

[0026] (2) The servo closed double-point precision press of the present application is provided with dynamic balance components, which can greatly reduce the inertial force generated by the movement of the slide block and improve the stability of the press.

[0027] (3) The servo closed double-point precision press of the present application is provided with servo die adjusting components, which can quickly and accurately adjust the position of the slide block when the large-torque servo motor stops, thereby improving the use performance of the press.

[0028] (4) The servo closed double-point precision press of the present application is provided with air pressure adjusting components, which can automatically adjust the working air pressure of the press according to the working requirements, thereby improving the use performance of the press.

[0029] (5) The servo closed double-point precision press of the present application is provided with continuous lubrication components, which can provide continuous oil lubrication for the press, thereby improving the stability and service life of the press.

[0030] (6) The servo closed double-point precision press of the present application is provided with information detection components, which can detect information such as temperature, slide block position, press output, slide block adjustment distance and the like generated during the use of the press, thereby improving the use performance of the press.

[0031] (7) The servo closed double-point precision press of the present application is provided with leveling and damping components, which can ensure the levelness of the press with the ground while reducing the influence of the working vibration of the press on the ground, thereby improving the use performance of the press.

[0032] (8) The servo closed double-point precision press of the present application is provided with slide block balancing components, which can reduce the inertia and instability of the slide block during the working process of the press, thereby improving the stability of the press.

[0033] (9) The servo closed double-point precision press of the present application is provided with a maintenance platform, which can conveniently reach the top of the press for operation and maintenance, thereby improving the use performance of the press.

[0034] (10) The servo closed double-point precision press of the present application is provided with cooling components, which can cool the planetary gear reduction box and the large-torque servo motor, thereby improving the stability and service life of the press. BRIEF DESCRIPTION OF DRAWINGS

[0035] The present application will be further described below in combination with the drawings and embodiments:

[0036] Figure 1This is a cross-sectional view of a servo-controlled closed-loop dual-point precision press according to an embodiment of the present invention.

[0037] Figure 2 for Figure 1 The servo-driven closed-loop two-point precision press shown in the figure only includes a partial structural diagram of the servo transmission components and dynamic balancing components.

[0038] Figure 3 for Figure 1 The schematic diagram of the servo closed-loop two-point precision press in the image shows only a partial structure of the servo transmission component, servo mold adjustment component, and slide balance component.

[0039] Figure 4 for Figure 3 A partially enlarged structural diagram of section A;

[0040] Figure 5 This is a top view of the servo-controlled closed-loop dual-point precision press according to an embodiment of the present invention.

[0041] Figure 6 This is a cross-sectional view of the servo-controlled closed-loop dual-point precision press according to an embodiment of the present invention.

[0042] Wherein: 1, fuselage; 2, slider; 3, servo drive component; 31, integral eccentric shaft; 32a, first large torque servo motor; 32b, second large torque servo motor; 33a, first planetary gear reducer; 33b, second planetary gear reducer; 34a, first balance plate; 34b, second balance plate; 4, dynamic balance component; 41, second box; 42a, first adjustment guide rail; 42b, second adjustment guide rail; 43, balance slider; 44, first counterweight; 45, second counterweight; 46a, first pin shaft; 46b, second pin shaft; 47a, first connecting rod; 47b, second connecting rod; 48a, first connecting rod cover; 48b, second connecting rod cover; 5, servo adjustment mode component; 52b, second piston; 54a, first adjusting screw; 54b, second adjusting screw; 55a, first limit ring; 55b, second limit ring; 56a, first worm gear; 56b, second worm gear; 58b, second gland; 59a, first worm; 59b, second worm; 510, servo motor; 511a, first pressing block; 511b, second pressing block; 512, total high pressure oil pipe; 513, overload pump; 514a, first nut; 514b, second nut; 515a, first guide column; 515b, second guide column; 516a, third connecting rod; 516b, fourth connecting rod; 517a, third pin shaft; 517b, fourth pin shaft; 518a, third connecting rod cover; 518b, fourth connecting rod cover; 61, air pocket; 62, air pressure sensor; 63, electronic pressure regulating valve; 7, continuous lubrication component; 71, lubrication station; 72, first oil distribution block; 73, second oil distribution block; 74, third oil distribution block; 8, information detection component; 81, temperature sensor; 82, rotary encoder; 83b, second hydraulic sensor; 84b, second angle sensor; 9, leveling and damping component; 91, damping pad; 10, slider balance component; 101a, first balance cylinder; 101b, second balance cylinder; 102a, first support; 102b, second support; 11, maintenance platform; 111, mounting support; 112, step; 113, split rail; 114, ladder; 12, cooling component; 121, first cooler; 122, second cooler. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of well-known structures and technologies will be omitted to avoid unnecessary confusion of the concept of the present application.

[0044] Reference Figures 1 to 6The servo closed double-point precision press of the embodiment of the present application comprises a machine body 1, a sliding block 2, a servo driving component 3, a dynamic balance component 4, a servo die adjusting component 5, a gas pressure adjusting component, a sliding block balance component 10, a continuous lubricating component 7, an information detecting component 8, a leveling and damping component 9, a maintenance platform 11 and a cooling component 12. The servo driving component 3 is installed at the middle position of the upper part of the machine body 1 and is connected with the sliding block 2. The servo die adjusting component 5 is installed in the sliding block 2 and is used to adjust the position of the sliding block 2 when the servo driving component 3 stops driving. The gas pressure adjusting component is installed at the rear side of the upper part of the machine body 1 and cooperates with the sliding block balance component 10, and is used to adjust the working gas pressure of the press. The dynamic balance component 4 is installed at the middle position of the top of the machine body 1, and the sliding block balance component 10 is installed at the two sides of the sliding block 2 respectively, and the sliding block balance component 10 and the dynamic balance component 4 are both used to reduce the inertia of the sliding block 2. The inertia of the sliding block 2 is mainly reduced by the dynamic balance component 4 and secondarily reduced by the sliding block balance component 10. The continuous lubricating component 7 is installed at the lower rear side of the machine body 1 and is used to provide continuous oil lubrication for the sliding block 2, the servo driving component 3, the dynamic balance component 4 and the sliding block balance component 10. The information detecting component 8 is installed on the machine body 1 and is used to detect the temperature, the position of the sliding block 2, the output of the sliding block 2 and the adjustment distance of the sliding block 2 during the working process of the press. The leveling and damping component 9 is installed at the four corners of the bottom of the machine body 1 and is used to ensure the levelness of the press with the ground and to reduce the influence of the working vibration of the press on the ground. The maintenance platform 11 is installed at the upper outer side of the machine body 1 and is used for the workers to enter the machine body 1 to work and maintain. The cooling component 12 is installed on the maintenance platform 11 and is connected with the servo driving component 3 and is used to cool the servo driving component 3. The press of the embodiment of the present application does not use a flywheel, but uses the servo driving component 3 to drive the sliding block 2, and cooperates with the new dynamic balance component 4, the sliding block balance component 10, the servo die adjusting component 5, the gas pressure adjusting component, the continuous lubricating component 7, the cooling component 12, the leveling and damping component 9 and the information detecting component 8 to quickly, accurately and flexibly drive the sliding block 2 to move, so that the working speed of the press is faster, the working precision is higher and the adaptability is better.

[0045] Specifically, as shown in Figures 2 to 4 The servo driving component 3 comprises an integral eccentric shaft 31, a gear reduction box and a large torque servo motor 510. In the embodiment of the present application, the number of the gear reduction box and the large torque servo motor 510 is two. As shown in Figure 2As shown, two gear reduction boxes are respectively arranged at left and right ends of the integral eccentric shaft 31, and two large torque servo motors 510 are respectively arranged outside the two gear reduction boxes. In order to facilitate description and distinction, the two gear reduction boxes are respectively described as a first planetary gear reduction box 33a and a second planetary gear reduction box 33b, and the two large torque servo motors 510 are respectively described as a first large torque servo motor 32a and a second large torque servo motor 32b. The first large torque servo motor 32a and the second large torque servo motor 32b are of the same specification and are both high-torque servo motors 510 of the conventional type on the market. Generally, servo motors 510 of the same power type have high-torque type, standard type and high-speed type. The large torque servo motor 510 in the embodiment of the present application is of the high-torque type, and the specific torque is not described or limited, and can be selected by those skilled in the art according to actual needs. The integral eccentric shaft 31 is a conventional eccentric shaft with two crank handles, and its specific structure is not described or limited, and those skilled in the art can easily know it. The first planetary gear reduction box 33a and the second planetary gear reduction box 33b are of the same structure and are both conventional planetary gear reduction boxes, and their specific structures are not described or limited, and those skilled in the art can easily know them. As for the mounting method of the first large torque servo motor 32a and the second large torque servo motor 32b, they are both mounted on the fuselage 1 through the conventional flange mounting method of the servo motor 510 on the market, and are specifically mounted on the left and right sides as shown. Figure 2 Preferably, a first balance plate 34a and a second balance plate 34b are respectively arranged beside the two crank handles (not marked) of the integral eccentric shaft 31. The first balance plate 34a and the second balance plate 34b should be of the same structure and symmetrically arranged about the center line of the two crank handles, that is, the balance ability is consistent, and the specific description and limitation are not made, and those skilled in the art can select and design according to actual needs. Through the arrangement of the first balance plate 34a and the second balance plate 34b, the slider 2 can be quickly, accurately and flexibly driven to move, so that the working speed of the press is faster, the working precision is higher, and the adaptability is better.

[0046] As Figure 2As shown, the dynamic balancing component 4 comprises a second box body 41, adjustment guide rails, a balancing slider 43 and a counterweight component. The second box body 41 is arranged in the middle of the top of the machine body 1. The adjustment guide rails comprise first adjustment guide rails 42a and second adjustment guide rails 42b symmetrically arranged on the left and right inner side walls of the second box body 41 and extending vertically. The number of the first adjustment guide rails 42a and the second adjustment guide rails 42b is not limited, for example, two parallel guide rails are arranged on each of the two corners adjacent to each inner side wall of the second box body 41, that is, the number of the first adjustment guide rails 42a and the second adjustment guide rails 42b is four respectively. The two ends of the balancing slider 43 are respectively slidably arranged on the first adjustment guide rails 42a and the second adjustment guide rails 42b. The first pin shafts 46a and the second pin shafts 46b are symmetrically and spacedly arranged in the balancing slider 43. The counterweight component is arranged above the positions corresponding to the first pin shafts 46a and the second pin shafts 46b on the balancing slider 43. The first connecting rods 47a and the second connecting rods 47b are respectively arranged below the first pin shafts 46a and the second pin shafts 46b. Any counterweight component comprises the first counterweight block 44 and the second counterweight block 45 arranged in sequence from bottom to top, and the thickness of the first counterweight block 44 is greater than that of the second counterweight block 45. For example, the thickness of the second counterweight block 45 is half of the thickness of the first counterweight block 44, for example, the thickness of the first counterweight block 44 is 100 mm, and the specific thickness is not described and limited, and a person skilled in the art can select and design according to actual needs. It should be noted that the first counterweight block 44 and the second counterweight block 45 can be detached and separated, so that by arranging two counterweight blocks with different thicknesses, the purpose of adjustable dynamic balance is achieved, and the applicability is stronger than the existing dynamic balancing component 4 with unadjustable counterweight. The lower ends of the first connecting rods 47a and the second connecting rods 47b are respectively provided with the first connecting rod cover 48a and the second connecting rod cover 48b, and the first connecting rod 47a and the first connecting rod cover 48a, the second connecting rod 47b and the second connecting rod cover 48b are correspondingly assembled on the integral eccentric shaft 31. That is, the top end of the first connecting rod 47a and the second connecting rod 47b matches the concave surface of the outer surface of the integral eccentric shaft 31, the first connecting rod cover 48a and the second connecting rod cover 48b also have a concave surface matching the outer surface of the integral eccentric shaft 31, and the first connecting rod 47a and the first connecting rod cover 48a and the second connecting rod 47b and the second connecting rod cover 48b are correspondingly matched on the integral eccentric shaft 31 and are correspondingly fixed together by screws and other fasteners. The first connecting rod 47a and the second connecting rod 47b are symmetrically arranged about the center line of the two crank handles. The first balancing plate 34a and the second balancing plate 34b are respectively arranged on the opposite side of the first connecting rod 47a and the second connecting rod 47b. In order to facilitate description and distinction, the balancing plate and the connecting rod on the left side as shown in Figure 2 are described as the first balancing plate 34a and the first connecting rod 47a, and the balancing plate and the connecting rod on the right side as shown in Figure 2The balance plate and link shown on the right are described as a second balance plate 34b and a second link 47b. The first balance plate 34a is located to the left of the first link 47a, and the second balance plate 34b is located to the right of the second link 47b.

[0047] like Figure 3 and Figure 4 As shown, the servo mode adjustment component 5 includes two such as Figure 3 The first housings shown are positioned on the left and right sides above slider 2 and spaced apart. Each of the two first housings has an internal cavity. Pistons are slidably mounted in each of the two first housings (for ease of distinction, the two pistons are described as a first piston (not labeled) and a second piston 52b, respectively). Figure 3 The piston on the left is the first piston, and the piston on the right is the second piston 52b. Both the first and second pistons 52b have downwardly recessed cavities (not shown) at their tops, containing a first copper pad (not labeled) and a second copper pad (not labeled). A first adjusting screw 54a and a second adjusting screw 54b are respectively mounted on the upper ends of the first and second copper pads. To limit the stroke of the first and second pistons 52b, a first limiting ring 55a and a second limiting ring 55b are respectively located above the first and second pistons 52b within the inner cavities of the two first housings. A first pressure cap (not labeled) and a second pressure cap 58b are connected at the top openings of the first and second housings 41 by screws or other fasteners. A first worm gear 56a and a second worm gear 56b are respectively provided on the first adjusting screw 54a and the second adjusting screw 54b. The first worm gear 56a and the first adjusting screw 54a, and the second worm gear 56b and the second adjusting screw 54b are connected by keys (not shown). That is, the first worm gear 56a moves with the first adjusting screw 54a, and the second worm gear 56b moves with the second adjusting screw 54b. A first worm 59a and a second worm 59b are also provided on the two first housings, respectively, to mesh with the first worm gear 56a and the second worm gear 56b. Specifically, the two first housings also have a first through hole (not shown) and a second through hole (not shown) for the first worm 59a and the second worm 59b to pass through and mesh with the first worm gear 56a and the second worm gear 56b, respectively. The outer ends of the first worm 59a and the second worm 59b are respectively connected to a servo motor 510 provided on the body 1 and located outside the first housing. A servo motor 510 is used to drive the worm gear in linear motion, which in turn drives the worm wheel to rotate around the axis of the corresponding screw, thereby driving the corresponding screw along its axis, i.e., ... Figure 3The horizontal left and right movement is shown to adjust the corresponding piston to slide in the space below the limiting ring in the corresponding first box. It should be noted that the first worm 59a and the second worm 59b share a servo motor 510, such as a double-shaft servo motor 510 currently available on the market, and the specific structure is not described. It can ensure that the first worm 59a and the second worm 59b are driven synchronously and can reduce the number of parts and the occupied space. As an alternative embodiment, two servo motors 510 can also be provided, and the first worm 59a and the second worm 59b independently use one servo motor 510 respectively. The lower side of the side wall of the two first boxes is provided with oil holes (for the sake of description, the two oil holes are described as first oil hole and second oil hole respectively), and the outer wall of the first oil hole (not indicated) and the second oil hole (not indicated) is provided with the first pressing block 511a and the second pressing block 511b respectively, and the first pressing block 511a and the second pressing block 511b are respectively provided with the first high-pressure oil pipe (not indicated) and the second high-pressure oil pipe (not indicated) which communicate with the inner cavities of the two first boxes, and the first high-pressure oil pipe and the second high-pressure oil pipe are connected to the same high-pressure oil pipe, that is, the total high-pressure oil pipe 512, and then connected to the hydraulic overload pump 513. That is, the hydraulic overload pump 513 is connected to the inner cavities of the two first boxes to adjust the pressure of the hydraulic chamber in the two first boxes. Reducing the number of components can effectively save costs. As an alternative embodiment, two hydraulic overload pumps 513 can also be provided, connected to the first oil hole and the second oil hole through the first high-pressure oil pipe and the second high-pressure oil pipe respectively. The upper end of the first adjusting screw 54a and the second adjusting screw 54b is respectively provided with the first nut 514a and the second nut 514b, and the first nut 514a and the second nut 514b are respectively installed in the recess cavity opened at the lower end of the first guide column 515a and the second guide column 515b. The first guide column 515a and the second guide column 515b are opposite and spaced apart through the avoidance through hole (not shown) on the upper side of the inside of the machine body 1, and are connected together through the third pin shaft 517a and the fourth pin shaft 517b between the third connecting rod 516a and the fourth connecting rod 516b, respectively. The upper end of the third connecting rod 516a and the fourth connecting rod 516b is respectively provided with the third connecting rod cover 518a and the fourth connecting rod cover 518b, and the third connecting rod 516a and the third connecting rod cover 518a, the fourth connecting rod 516b and the fourth connecting rod cover 518b are combined and installed on the integral eccentric shaft 31, which is consistent with the assembly method of the first connecting rod 47a, the first connecting rod cover 48a and the second connecting rod 47b, the second connecting rod cover 48b. Here, it is not described and limited. The third connecting rod 516a and the fourth connecting rod 516b are respectively located on the side opposite to the first balance plate 34a and the second balance plate 34b. That is, in order to facilitate description and distinction, as Figure 3The left connecting rod shown is described as the third connecting rod 516a, and the right connecting rod is described as the fourth connecting rod 516b, the third connecting rod 516a is arranged on the left side of the first balance plate 34a, and the second connecting rod 47b is arranged on the right side of the second balance plate 34b. The third connecting rod 516a and the fourth connecting rod 516b are arranged symmetrically about the center line of the two crank handles to ensure accuracy. By cooperating the servo motor 510, the worm gear transmission assembly, the piston, and the hydraulic overload pump 513, the starting position of the movement of the slide 2 can be quickly and accurately adjusted, and the use performance of the press machine is improved. For the hydraulic overload pump 513, it is a conventional hydraulic overload pump on the market, and the specific structure, model and working principle are not described and limited here. The person skilled in the art can select according to the actual needs. For the servo motor 510, it is a standard torque servo motor on the market, that is, the torque is smaller than the torque of the first large torque servo motor 32a and the second large torque servo motor 32b in the embodiment of the application. The specific description and limitation are not described and limited, and the person skilled in the art can select and design according to the actual needs.

[0048] As shown in Figures 1 to 4 , the information detection component 8 includes a temperature sensor 81, a rotary encoder 82, a hydraulic sensor and an angle sensor. Specifically, the temperature sensor 81 is installed in the upper part of the fuselage 1, as shown in Figure 2 , the temperature sensor 81 is arranged on the left and right sides of the integral eccentric shaft 31, for detecting the working temperature of the integral eccentric shaft 31, the first planetary gear reducer 33a, the second planetary gear reducer 33b and the third connecting rod 516a and the fourth connecting rod 516b, and when the temperature rises above the safety value during the use of the press machine, the temperature sensor 81 will send an alarm signal and feedback to the press machine controller (not shown) to make the press machine stop working, avoiding damage to the press machine. The rotary encoder 82 is installed on one side of the integral eccentric shaft 31, as shown in Figure 1 and Figure 2 , the rotary encoder 82 is installed on the left side of the integral eccentric shaft 31, which can detect and display the rotation angle of the integral eccentric shaft 31 in real time, and then calculate the real-time position of the slide 2 through the control program. The control program calculates the real-time position of the slide 2 is not the innovation point of the present application, which is a conventional calculation method known to those skilled in the art. The hydraulic sensor includes a first hydraulic sensor and a second hydraulic sensor 83b, as shown in Figure 3 and Figure 4As shown, the first hydraulic sensor (not shown) and the second hydraulic sensor 83b are respectively installed on the first pressing block 511a and the second pressing block 511b, which can detect the hydraulic pressure in the corresponding first box in real time and calculate the output of the slide 2 of the press through the control program. When the output of the press is abnormal, the first hydraulic sensor and the second hydraulic sensor 83b will send an alarm signal to stop the press, avoiding damage to the press and the mold. The control program calculates the output of the slide 2 of the press, which is not the innovation of the present application, and is known and realized by those skilled in the art. The angle sensor includes a first angle sensor (not shown) and a second angle sensor 84b, as shown in Figure 3 and Figure 4 As shown, the first angle sensor (not shown) and the second angle sensor 84b are respectively installed on the far side of the first worm 59a and the second worm 59b, that is, the left and right sides as shown in Figure 3 , which can detect the rotation angle of the first worm 59a and the second worm 59b in real time, and then calculate the working value of the servo mold adjusting component 5 through the control program to ensure the working accuracy of the servo mold adjusting component 5. Similarly, the detected rotation angle of the worm is used to calculate the action value of the servo mold adjusting component 5 through the control program, which is not the innovation of the present application, and is known by those skilled in the art. For the temperature sensor 81, the rotary encoder 82, the hydraulic sensor and the angle sensor, they are conventional components on the market, and the specific structure and working principle are not described and limited, and those skilled in the art can easily know and select according to actual needs.

[0049] As shown in Figure 2 , Figure 5 and Figure 6 , the maintenance platform 11 has a plurality of mounting brackets 111, a pedal 112, a split fence 113 and a ladder 114. The plurality of mounting brackets 111 are installed on the outer side of the upper part of the machine body 1, such as the left and right sides of the upper part of the machine body 1 as shown in Figure 2 , the mounting bracket 111 is provided with the pedal 112, and the pedal 112 is provided with the split fence 113, and the rear side of the machine body 1 is also provided with the ladder 114 passing through the pedal 112. The pedal 112 is convenient for employees to step on, and the split fence 113 provides protection safety. Through the setting of the maintenance platform 11, employees or maintenance personnel can easily reach the top of the press to work and maintain, which improves the safety and use performance of the press. The specific structure of the pedal 112, the split fence 113 and the ladder 114 is not described and limited, which is a conventional structure, and those skilled in the art can select and design according to actual needs.

[0050] As shown in Figure 5As shown, the cooling component 12 includes a first cooler 121 and a second cooler 122. The first cooler 121 is mounted on one side of the pedal 112, i.e., as shown... Figure 5 The left side, as shown, is used to cool the first high-torque servo motor 32a and the second high-torque servo motor 32b. The second cooler 122 is installed on the other side of the pedal 112, i.e., as shown... Figure 5 As shown on the right, a second cooler 122 is used to cool the first planetary gear reducer 33a and the second planetary gear reducer 33b. Both the first cooler 121 and the second cooler 122 are electrically connected to a temperature sensor 81. For example, the temperature sensor 81 is connected to the input terminal of the press's controller, and the output terminal of the controller is connected to the first cooler 121 and the second cooler 122. When the temperature sensor 81 detects that the temperature of the corresponding component exceeds the set temperature, the controller provides feedback to control the corresponding cooler to cool the corresponding component. The first cooler 121 and the second cooler 122 are conventional cooling devices available on the market, such as the YLD15-60 type oil cooler. Their specific structure and working principle are not described or limited here, and those skilled in the art can easily understand and implement them. By setting up the first cooler 121 and the second cooler 122, the first planetary gear reducer 33a, the second planetary gear reducer 33b, and the first high-torque servo motor 32a and the second high-torque servo motor 32b can be cooled, improving the stability and service life of the press.

[0051] like Figure 3 and Figure 5As shown, the slider balancing component 10 includes a first bracket 102a and a second bracket 102b respectively installed on both ends of the slider 2, and a first balancing cylinder 101a and a second balancing cylinder 101b respectively connected with the first bracket 102a and the second bracket 102b. The air pressure adjusting component includes an air bag 61 installed on the rear side of the upper part of the machine body 1, an air pressure sensor 62 arranged on the air bag 61, and an electronic pressure regulating valve 63. The air pressure sensor 62 is used to detect the air pressure in the air bag 61, and the electronic pressure regulating valve 63 is used to adjust the air intake or air exhaust of the air bag 61 into the corresponding balancing cylinder. The first balancing cylinder 101a and the second balancing cylinder 101b are respectively installed on both sides of the machine body 1 through flanges, and the first balancing cylinder 101a and the second balancing cylinder 101b are respectively connected with the air bag 61 through a first pipeline (not marked) and a second pipeline (not marked). The first bracket 102a and the second bracket 102b are respectively connected with the piston rods of the first balancing cylinder 101a and the second balancing cylinder 101b, and the first bracket 102a and the second bracket 102b are respectively installed on both sides of the slider 2 through screw fixing components. That is, both ends of the slider 2 are respectively connected with the piston rods (not marked) of the first balancing cylinder 101a and the second balancing cylinder 101b, the air pressure sensor 62 can detect the accurate working air pressure of the press, and the working air pressure of the press can be automatically adjusted through the electronic pressure regulating valve 63 according to the working requirements, thereby improving the use performance of the press, and the setting of the slider balancing component 10 can reduce the inertia and instability of the slider 2 during the working process of the press, thereby improving the use performance and stability of the press.

[0052] As shown, Figures 2 to 5 The continuous lubrication component 7 includes a lubrication station 71, a first oil distribution block 72, a second oil distribution block 73, and a third oil distribution block 74. The lubrication station 71 is arranged on the rear side below the bottom of the machine body 1, and the lubrication station 71 is a device that can provide lubricating oil on the market, and its specific structure and working principle are not described and limited, and those skilled in the art can easily know and realize it. The first oil distribution block 72 is installed on the top of the machine body 1 and connected with the oil outlet oil way of the lubrication station 71 and used to distribute lubricating oil to the servo drive component 3. The second oil distribution block 73 is arranged inside the slider 2 and connected with the oil outlet oil way of the lubrication station 71 and used to distribute lubricating oil to the slider 2. The third oil distribution block 74 is installed on the machine body 1 and connected with the oil outlet oil way of the lubrication station 71 and used to distribute lubricating oil to the slider balancing component 10. For the first oil distribution block 72, the second oil distribution block 73, and the third oil distribution block 74, they can be optional conventional lubricating oil distributors on the market, such as JPQ type sheet progressive distributors on the market, and their specific structure and working principle are not described and limited, and those skilled in the art can easily know it. Through the lubrication station 71, the first oil distribution block 72, the second oil distribution block 73, and the third oil distribution block 74, the servo drive component 3, the slider 2, and the slider balancing component 10 in the press can be continuously lubricated with oil, thereby improving the stability and service life of the press.

[0053] As shown in Figure 1 and Figure 6 The leveling damping component 9 includes damping pads 91 mounted at the four corners of the bottom of the machine body 1 and adjusting shims (not shown) arranged between the four corners of the machine body 1 and the corresponding damping pads 91. The damping pads 91 and the adjusting shims are both conventional structures on the market, and the specific structure is not limited, and can be selected and designed by those skilled in the art according to actual needs. The influence of the working vibration of the press on the ground can be reduced while ensuring the levelness of the press and the ground, and the use performance of the press is improved.

[0054] The specified direction in the specific embodiment is only for the convenience of describing the positional relationship and the mutual cooperation relationship between the components. The above description is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiment. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A servo-controlled closed-loop two-point precision press, comprising a machine body and a slide mounted on the machine body, characterized in that, It also includes servo drive components, dynamic balancing components, servo mold adjustment components, air pressure regulation components, slider balancing components, continuous lubrication components, information detection components, leveling and shock absorption components, maintenance platform, and cooling components; The servo drive component is installed at the upper middle position of the machine body and connected to the slider; the servo mold adjustment component is installed inside the slider; the air pressure regulating component is installed on the upper rear side of the machine body and cooperates with the slider balancing component; the dynamic balancing component is installed at the top middle position of the machine body, and the slider balancing components are respectively installed on both sides of the slider. Both the slider balancing component and the dynamic balancing component are used to reduce the inertia of the slider; the continuous lubrication component is installed on the lower rear side of the machine body; the information detection components are distributed on the machine body; the leveling and shock absorption components are installed at the four bottom corners of the machine body; the maintenance platform is installed on the upper outer side of the machine body; the cooling component is installed on the maintenance platform and connected to the servo drive component. The servo transmission component includes an integral eccentric shaft, a first planetary gear reducer and a second planetary gear reducer installed at both ends of the integral eccentric shaft, and a first high-torque servo motor and a second high-torque servo motor respectively connected to the first planetary gear reducer and the second planetary gear reducer. The first high-torque servo motor and the second high-torque servo motor are respectively mounted on the machine body through flanges. The integral eccentric shaft has two opposing and side-by-side cranks, and a first balance plate and a second balance plate are respectively installed on the opposite sides of the two cranks. The dynamic balancing component includes a second housing located at the top center of the body, a first and second adjusting guide rails symmetrically arranged on the two inner side walls of the second housing and extending vertically, a balance slider with its two ends slidably mounted on the first and second adjusting guide rails respectively, a first and second pins symmetrically and spaced apart within the balance slider, a counterweight component located on the balance slider corresponding to the positions above the first and second pins respectively, and a first and second connecting rod located below the first and second pins respectively. Each of the aforementioned counterweight components includes a first counterweight block and a second counterweight block stacked sequentially from bottom to top, wherein the first counterweight block is thicker than the second counterweight block; the lower ends of the first connecting rod and the second connecting rod are respectively provided with a first connecting rod cover and a second connecting rod cover, and the first connecting rod and the first connecting rod cover, the second connecting rod and the second connecting rod cover are respectively assembled on the integral eccentric shaft, and the first balance plate and the second balance plate are respectively provided on opposite sides of the first connecting rod and the second connecting rod; The servo adjustment component includes a first housing with an inner cavity, respectively disposed on both sides above the slider; a first piston and a second piston, respectively slidably disposed in the inner cavities of the two first housings; a first copper pad and a second copper pad, respectively disposed in the concave cavities at the upper ends of the first piston and the second piston; a first adjusting screw and a second adjusting screw respectively connected to the first copper pad and the second copper pad; a first limiting ring and a second limiting ring respectively disposed in the inner cavities of the two first housings; a first worm gear and a second worm gear respectively disposed on the first adjusting screw and the second adjusting screw; a first worm and a second worm gear respectively meshing with the first worm gear and the second worm gear; a servo motor respectively connected to the first worm and the second worm gear; and a first pressure cover and a second pressure cover respectively disposed at the top openings of the two first housings. The outer walls of the oil holes of the two first housings are respectively provided with a first pressure block and a second pressure block. The first pressure block and the second pressure block are respectively equipped with a first high-pressure oil pipe and a second high-pressure oil pipe that connect the inner cavities of the two first housings. The first high-pressure oil pipe and the second high-pressure oil pipe are connected to the overload pump through a main high-pressure oil pipe. The first worm gear and the first adjusting screw, as well as the second worm gear and the second adjusting screw, are all connected by a key. The first worm and the second worm are respectively movably inserted into the first through hole and the second through hole opened on the two first housings. The upper ends of the first adjusting screw and the second adjusting screw are respectively provided with a first nut and a second nut. The first nut and the second nut are respectively installed in the cavities opened at the lower ends of the first guide post and the second guide post. The first guide post and the second guide post are opposite to each other and pass through the clearance through hole on the upper side of the inner side of the machine body, and are respectively connected to the third link and the fourth link by the third pin and the fourth pin. The upper ends of the third link and the fourth link are respectively installed with a third link cover and a fourth link cover. The third link and the third link cover, and the fourth link and the fourth link cover are combined and installed on the integral eccentric shaft and are respectively located on the opposite side of the first balance plate and the second balance plate.

2. The servo-controlled closed-loop dual-point precision press according to claim 1, characterized in that, The information detection component includes a temperature sensor installed on the upper part of the machine body for detecting the working temperature of the integral eccentric shaft, the first planetary gear reducer, the second planetary gear reducer, the third connecting rod, and the fourth connecting rod; a rotary encoder installed on the integral eccentric shaft; a first hydraulic sensor and a second hydraulic sensor respectively installed on the first pressure block and the second pressure block; and a first angle sensor and a second angle sensor respectively installed on one side of the first worm and the second worm.

3. The servo-controlled closed-loop dual-point precision press according to claim 1, characterized in that, The maintenance platform includes multiple mounting brackets installed on the upper outer side of the machine body. Each mounting bracket is equipped with a footboard and the footboard is equipped with a split-type fence. A ladder passing through the footboard is also provided on the rear side of the machine body.

4. The servo-controlled closed-loop dual-point precision press according to claim 3, characterized in that, The cooling components include a first cooler installed on one side of the pedal for cooling the first high-torque servo motor and the second high-torque servo motor, and a second cooler installed on the other side of the pedal for cooling the first planetary gear reducer and the second planetary gear reducer.

5. The servo-controlled closed-loop dual-point precision press according to any one of claims 1-4, characterized in that, The slider balancing component includes a first bracket and a second bracket respectively installed at both ends of the slider, and a first balancing cylinder and a second balancing cylinder respectively connected to the first bracket and the second bracket; the air pressure regulating component includes an air bag installed on the upper rear side of the machine body, an air pressure sensor and an electronic pressure regulating valve provided on the air bag; The first balance cylinder and the second balance cylinder are symmetrically mounted on both sides of the machine body via flanges, and the first balance cylinder and the second balance cylinder are connected to the air tank via a first pipeline and a second pipeline, respectively; the first bracket and the second bracket are connected to the piston rods of the first balance cylinder and the second balance cylinder, respectively.

6. The servo-controlled closed-loop dual-point precision press according to any one of claims 1-4, characterized in that, The continuous lubrication component includes a lubrication station located below the rear side of the bottom of the machine body, a first oil distribution block installed on the top of the machine body and connected to the oil circuit of the lubrication station for distributing lubricating oil to the servo transmission component, a second oil distribution block located inside the slider and connected to the oil circuit of the lubrication station for distributing lubricating oil to the slider, and a third oil distribution block installed on the machine body and connected to the oil circuit of the lubrication station for distributing lubricating oil to the slider balancing component.

7. The servo-controlled closed-loop dual-point precision press according to any one of claims 1-4, characterized in that, The leveling and shock-absorbing components include shock-absorbing pads installed at the four corners of the bottom of the machine body and adjusting shims located between the four corners of the machine body and the corresponding shock-absorbing pads.

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