High-precision hydraulic bending machine with automatic correction function

Abstract

The utility model discloses a high-precision hydraulic bending machine with an automatic correction function, and belongs to the technical field of hydraulic bending machines. The high-precision hydraulic bending machine with the automatic correction function comprises a machine frame, a pressing plate is arranged above one side of the machine frame, a workbench is arranged below the pressing plate, a truss is arranged on the inner side of the machine frame, a pump machine is arranged at one end of the truss, and the pump machine is connected with the truss through bolts. In order to solve the problems that in the long-time use process of an existing bending machine, manual periodic measurement is needed for the bending machine, then the precision of the equipment is adjusted according to a measurement structure, and the periodic correction may cause serious abrasion of the equipment, a compensation corrector can be used for monitoring the working numerical value of the bending machine each time in real time, and the working efficiency of the bending machine is improved. And whether the current bending machine needs to be corrected and compensated or not is judged in a comparison mode, so that the machining precision can be improved, and mechanical wear of the bending machine caused by a difference value can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic bending machine, concretely is a kind of high-precision hydraulic bending machine of automatic correction. BACKGROUND

[0002] Springback is the most common phenomenon in bending processing, and is also a technical difficulty in bending process development. The existence of springback problem causes low part forming precision, increases the workload of repeated trial, mold repair and blade stroke adjustment, and the workload of correction and shaping after bending.

[0003] And the existing bending machine needs manual periodic measurement of the bending machine during long-term use, and then adjusts the equipment precision according to the measurement structure. This periodic correction may cause serious wear of the equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-precision hydraulic bending machine of automatic correction, compensation corrector can carry out real-time monitoring to the working value of bending machine every time, and whether the current bending machine needs to be corrected and compensated is judged by comparison, which can not only improve the machining precision, but also effectively avoid the mechanical wear of bending machine caused by difference, and can solve the problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of high-precision hydraulic bending machine of automatic correction, including rack, the upper side of one side of the rack is provided with pressing plate, the lower side of pressing plate is provided with workbench, wherein, the inner side of the rack is provided with truss, one end of the truss is provided with pump machine, pump machine is connected with truss by bolt, the upper side of the truss is provided with shunt, the both sides of the top of pressing plate are provided with oil cylinder shell cover, the inside of oil cylinder shell cover is provided with hydraulic cylinder, wherein, the hydraulic cylinder is connected with shunt by pipeline.

[0006] Further, the bottom of the pressing plate is provided with upper die, the upper die is connected with the pressing plate by bolt, the top of the workbench is provided with die holder, the upper side of the die holder is provided with lower die, wherein, the lower die is connected with the die holder by clamping groove.

[0007] Further, the outer side of the die holder is provided with bracket, the bracket is connected with the workbench by bolt, one end of the die holder is provided with hand wheel.

[0008] Further, the lower side of the hydraulic cylinder is provided with guide pile, the pressing plate is slidably connected with the rack by guide pile.

[0009] Further, one side of the guide pile is provided with compensation corrector, and the compensation corrector comprises a measuring track and a telescopic linkage, wherein the measuring track is parallel to the guide pile.

[0010] Further, one end of the telescopic connecting arm is provided with a positioning shaft, and the other end of the telescopic connecting arm is provided with a guide block connecting shaft, wherein the telescopic connecting arm is slidably connected with the measuring track through the positioning shaft, and the guide block connecting shaft is connected with the rack through a sliding block.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The compensation corrector can monitor the working value of the bending machine in real time each time, and judge whether the current bending machine needs to be corrected and compensated through comparison, so that the processing precision can be improved, and mechanical wear caused by the difference of the bending machine can be effectively avoided.

[0013] 2、The positioning shaft at one end of the telescopic connecting arm is driven to slide along the measuring track synchronously when the plate and the rack slide, and after single bending operation, the equipment records the pressure depth value measured by the measuring track, compares the current value with the set value or the previous bending value, judges whether there is a difference in the current bending value, and inputs the compensation value in the numerical control system when there is a difference. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the overall front view of the utility model;

[0015] Fig. 2 It is the guide pile structure schematic view of the utility model;

[0016] Fig. 3 It is the compensation corrector structure schematic view of the utility model.

[0017] In the drawing: 1, rack; 2, pump machine; 3, compensation corrector; 101, truss; 102, pressing plate; 103, workbench; 104, die holder; 105, bracket; 106, upper die; 1021, oil cylinder shell; 1022, hydraulic cylinder; 1023, guide pile; 1041, lower die; 1042, hand wheel; 201, flow divider; 301, measuring track; 302, positioning shaft; 303, telescopic connecting arm; 304, guide block connecting shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] In order to solve the existing bending machine in the long time using process needs manual periodical measurement to the bending machine, then according to the measured structure to adjust the equipment precision, this kind of periodic correction can cause the equipment to appear serious wear and tear problem, please refer to Figs. 1-3 The utility model provides the following schemes:

[0020] A kind of high-precision hydraulic bending machine of automatic correction, including rack 1, the top of one side of rack 1 is provided with pressing plate 102, the lower portion of pressing plate 102 is provided with workbench 103, wherein, the inside of rack 1 is provided with truss 101, one end of truss 101 is provided with pump machine 2, pump machine 2 is connected with truss 101 by bolt, the top of truss 101 is provided with shunt 201, the both sides of the top of pressing plate 102 are provided with oil cylinder casing 1021, the inside of oil cylinder casing 1021 is provided with hydraulic cylinder 1022, wherein, hydraulic cylinder 1022 is connected with shunt 201 by pipeline;

[0021] The bottom of pressing plate 102 is provided with upper die 106, upper die 106 is connected with pressing plate 102 by bolt, the top of workbench 103 is provided with die holder 104, the top of die holder 104 is provided with lower die 1041, wherein, lower die 1041 is connected with die holder 104 by clamping groove, the outside of die holder 104 is provided with bracket 105, bracket 105 is connected with workbench 103 by bolt, one end of die holder 104 is provided with hand wheel 1042, the overall height of die holder 104 can be adjusted by rotating hand wheel 1042, so as to adjust according to different plate structure, and the correction compensation operation of lower die 1041 can also be realized;

[0022] The hydraulic cylinder 1022 is provided below the guide pile 1023, and the pressing plate 102 is slidably connected with the rack 1 through the guide pile 1023. One side of the guide pile 1023 is provided with a compensation corrector 3. The compensation corrector 3 can monitor the working value of the bending machine in real time each time, and can judge whether the current bending machine needs to be compensated and corrected through comparison. In this way, the machining precision can be improved, and the mechanical wear caused by the difference of the bending machine can be effectively avoided. The compensation corrector 3 comprises a measuring track 301 and a telescopic connecting arm 303. The measuring track 301 is parallel to the guide pile 1023. One end of the telescopic connecting arm 303 is provided with a positioning shaft 302, and the other end of the telescopic connecting arm 303 is provided with a guide block connecting shaft 304. The telescopic connecting arm 303 is slidably connected with the measuring track 301 through the positioning shaft 302, and the guide block connecting shaft 304 is connected with the rack 1 through a sliding block. When the pressing plate 102 and the rack 1 slide, the positioning shaft 302 at one end of the telescopic connecting arm 303 will slide along the measuring track 301 synchronously. After single bending operation, the equipment will record the pressure depth value measured by the measuring track 301, compare the current value with the set value or the previous bending value, judge whether there is a difference in the current bending value, and input the compensation value in the numerical control system when there is a difference. Actual position = command value ± compensation value.

[0023] The working principle is that when the pressing plate 102 and the rack 1 slide, the positioning shaft 302 at one end of the telescopic connecting arm 303 will slide along the measuring track 301 synchronously. After single bending operation, the equipment will record the pressure depth value measured by the measuring track 301, compare the current value with the set value or the previous bending value, judge whether there is a difference in the current bending value, and input the compensation value in the numerical control system when there is a difference. Actual position = command value ± compensation value, which can eliminate the mechanical deviation, guide rail wear, hydraulic cylinder leakage or mechanical assembly error, and ensure that the sliding block stroke, parallelism and lower die centering meet the process requirements.

[0024] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatically corrected high-precision hydraulic bending machine, characterized in that, Including frame (1), one side of frame (1) is provided with pressing plate (102), the lower side of pressing plate (102) is provided with workbench (103), wherein the inner side of frame (1) is provided with truss (101), one end of truss (101) is provided with pump machine (2), pump machine (2) is connected with truss (101) through bolt, the upper side of truss (101) is provided with shunt (201), both sides of the top of pressing plate (102) are provided with oil cylinder shell (1021), the inside of oil cylinder shell (1021) is provided with hydraulic cylinder (1022), wherein the hydraulic cylinder (1022) is connected with shunt (201) through pipeline.

2. An automatically corrected high-precision hydraulic bending machine according to claim 1, characterized in that: The bottom of the pressing plate (102) is provided with an upper die (106), and the upper die (106) is connected with the pressing plate (102) through bolts, the top of the workbench (103) is provided with a die holder (104), the upper side of the die holder (104) is provided with a lower die (1041), wherein the lower die (1041) is connected with the die holder (104) through a clamping groove.

3. An automatically corrected high-precision hydraulic bending machine according to claim 2, characterized in that: The outer side of the die holder (104) is provided with a bracket (105), and the bracket (105) is connected with the workbench (103) through bolts, one end of the die holder (104) is provided with a hand wheel (1042).

4. The high-precision hydraulic bending machine with automatic correction according to claim 1, characterized in that: The lower side of the hydraulic cylinder (1022) is provided with a guide pile (1023), and the pressing plate (102) is connected with the frame (1) through the guide pile (1023).

5. An automatically corrected high-precision hydraulic bending machine according to claim 4, characterized in that: One side of the guide pile (1023) is provided with a compensation corrector (3), and the compensation corrector (3) comprises a measuring track (301) and a telescopic connecting arm (303), wherein the measuring track (301) is parallel to the guide pile (1023).

6. An automatically correcting high-precision hydraulic bending machine according to claim 5, characterized in that: One end of the telescopic connecting arm (303) is provided with a positioning shaft (302), and the other end of the telescopic connecting arm (303) is provided with a guide block shaft (304), wherein the telescopic connecting arm (303) is connected with the measuring track (301) through the positioning shaft (302), and the guide block shaft (304) is connected with the frame (1) through a sliding block.

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