阅读说明：本技术 压力机 (Press machine ) 是由 谢静宇 袁鹏 宋巍 张松 肖同华 于 2019-10-14 设计创作，主要内容包括：本发明提供了压力机,包括主体机身、平移支架、平移结构、平移电机、上压缸结构、下压缸结构、液压系统和电气系统,平移支架安装在主体机身的左侧,同时其上平面与主体机身下端设置的安装板上端面齐平,平移结构设置在平移支架上方,同时平移机构上设置的导轨放置在平移支架上,且导轨延伸至主体机身的安装板上端,下压缸结构安装在主体机身的安装板上,且下压缸结构位于两个导轨之间,平移电机安装在主体机身下端设置的平台上,上压缸机构安装在主体机身的上端,同时上压缸结构上设置的可更换压装头与下压缸结构上设置的下压装头相对设置。本发明减少了人工操作,取消了工件的二次搬运,同时提高了工件压装成功率,降低了工件次品率。(The invention provides a press machine, which comprises a main body, a translation support, a translation structure, a translation motor, an upper press cylinder structure, a lower press cylinder structure, a hydraulic system and an electrical system, wherein the translation support is arranged on the left side of the main body, the upper plane of the translation support is flush with the upper end face of a mounting plate arranged at the lower end of the main body, the translation structure is arranged above the translation support, a guide rail arranged on the translation mechanism is arranged on the translation support, the guide rail extends to the upper end of the mounting plate of the main body, the lower press cylinder structure is arranged on the mounting plate of the main body, the lower press cylinder structure is arranged between the two guide rails, the translation motor is arranged on a platform arranged at the lower end of the main body, the upper press cylinder mechanism is arranged at the upper end of the main body, and a replaceable press head arranged on the upper press cylinder structure. The invention reduces manual operation, cancels secondary carrying of workpieces, simultaneously improves the success rate of workpiece press mounting and reduces the defective rate of workpieces.)

1. The press machine is characterized in that: comprises a main body (1), a translation bracket (2), a translation structure (3), a translation motor (4), an upper pressure cylinder structure (5), a lower pressure cylinder structure (6), a hydraulic system (7) and an electrical system (8), wherein the translation bracket (2) is arranged on the left side of the main body (1), the upper plane of the translation bracket is flush with the upper end face of a mounting plate arranged at the lower end of the main body (1), the translation structure (3) is arranged above the translation bracket (2), a guide rail (9) arranged on the translation mechanism is placed on the translation bracket (2), the guide rail (9) extends to the upper end of the mounting plate arranged at the lower end of the main body (1), the lower pressure cylinder structure (6) is arranged on the mounting plate arranged at the lower end of the main body (1), and the lower pressure cylinder structure (6) is positioned between the two guide rails (9), translation motor (4) are installed on the platform that main part fuselage (1) lower extreme set up, just translation motor (4) set up the right side of pushing down cylinder structure (6), it installs to go up to press the cylinder mechanism the upper end of main part fuselage (1), simultaneously go up removable pressure equipment head (21) that set up on pressure cylinder structure (5) with the pressure equipment head (26) that set up down on the cylinder structure (6) set up relatively.

2. Press according to claim 1, characterized in that: an idler wheel is arranged at one end, close to the translation structure (3), of the translation support (2), and a chain wheel arranged on the translation motor (4) is connected with the idler wheel through a synchronous belt; and a synchronous belt pressing plate is arranged on the translation structure (3).

3. Press according to claim 1, characterized in that: the translation structure (3) comprises guide rails (9), a jacking cylinder (10), a bottom plate (11), a quick-change tool (12), a tool plate positioning pin (13), a jacking plate (14), a self-lubricating bearing (15) and a first guide post guide sleeve (16), wherein the bottom plate (11) is installed on the guide rails (9), the jacking cylinder (10) is arranged between the two guide rails (9), the side wall of the jacking cylinder (10) is fixed on the bottom plate (11), the extending end of the jacking cylinder is connected with the jacking plate (14), one end of the first guide post guide sleeve (16) is connected with the bottom plate (11), the other end of the first guide post guide sleeve is connected with the jacking plate (14), a through hole is formed in the jacking plate (14), the self-lubricating bearing (15) is installed in the through hole, the quick-change tool (12) is installed in an inner hole of the self-lubricating bearing (15), and the tooling plate positioning pins (13) are symmetrically arranged on two sides of the quick-change tooling (12).

4. Press according to claim 3, characterized in that: and a linear bearing is arranged on the guide rail (9).

5. Press according to claim 1, characterized in that: the upper pressure cylinder structure (5) comprises a second guide post guide sleeve (17), a lengthened sleeve (18), a buffer structure (19), a force measuring sensor (20), a replaceable press-fitting head (21) and an upper hydraulic cylinder (22), the upper hydraulic cylinder (22) and the second guide post guide sleeve (17) are installed on an upper installation plate arranged at the upper end of the main body (1), meanwhile, the extending end of the upper hydraulic cylinder (22) is arranged downwards, the lengthened sleeve (18) is connected with the extending end of the upper hydraulic cylinder (22) through a flange, the buffer structure (19) and the force measuring sensor (20) are installed between the flange connected to the lower portion of the upper hydraulic cylinder (22) and the lengthened sleeve (18), and the replaceable press-fitting head (21) is installed at one end, far away from the upper hydraulic cylinder (22), of the lengthened sleeve (18).

6. Press according to claim 5, characterized in that: the upper hydraulic cylinder (22) is provided with a connecting rod (24), and the connecting rod (24) is connected with a displacement sensor (23).

7. Press according to claim 1, characterized in that: the lower pressing cylinder structure (6) comprises a lower hydraulic cylinder (25) and a lower pressing head (26), and the lower pressing head (26) is installed at the end part of the extending end of the lower hydraulic cylinder (25).

8. Press according to claim 5 or 7, characterized in that: the diameter of the lower hydraulic cylinder (25) is larger than that of the upper hydraulic cylinder (22).

9. Press according to claim 1, characterized in that: the hydraulic system (7) adopts a servo motor pump set control system.

Technical Field

The invention belongs to the technical field of motor assembly, and particularly relates to a press machine.

Background

In the existing mainstream motor rotor press-mounting process, no matter a press machine is arranged inside or outside an assembly line body, the press machine is firstly used for press-mounting a rotor and a bearing in place, and then a press-mounted workpiece is conveyed to a tooling plate of the assembly line body, so that secondary conveying is generated, and the efficiency is reduced; the other more innovative motor rotor press mounting process cancels secondary carrying, and is realized in a mode that a press machine is arranged in a wire body, a tool plate capable of being pressed is adopted, a press mounting tool is arranged in the tool plate, the rotor and a bearing are directly pressed on the tool plate, the pressed workpiece carried by the tool plate flows into the next station after press mounting, although secondary carrying of the workpiece is avoided, the position deviation of the press machine and the tool plate, the position deviation of the tool and the press mounting tool, the accumulated error caused by the position deviation of the press mounting tool and the rotor is increased, and the press mounting defective rate is increased.

Disclosure of Invention

In view of this, the present invention is directed to a press machine which integrates feeding, transporting, and press-fitting, and can use a simple tooling plate for online press-fitting, and can ensure that the press-fitting quality of a workpiece is not reduced while eliminating secondary transporting of the workpiece.

In order to achieve the purpose, the technical scheme of the invention is realized as follows: the press machine comprises a main body, a translation support, a translation structure, a translation motor, an upper pressure cylinder structure, a lower pressure cylinder structure, a hydraulic system and an electrical system, wherein the translation support is arranged on the left side of the main body, the upper plane of the translation support is flush with the upper end face of a mounting plate arranged at the lower end of the main body, the translation structure is arranged above the translation support, a guide rail arranged on the translation mechanism is placed on the translation support and extends to the upper end of the mounting plate arranged at the lower end of the main body, the lower pressure cylinder structure is arranged on the mounting plate arranged at the lower end of the main body, the lower pressure cylinder structure is positioned between the two guide rails, the translation motor is arranged on a platform arranged at the lower end of the main body, the translation motor is arranged on the right side of the lower pressure cylinder structure, and the upper pressure cylinder structure is arranged at the upper end of the main, meanwhile, the replaceable press-fitting head arranged on the upper press cylinder structure is opposite to the lower press-fitting head arranged on the lower press cylinder structure.

Furthermore, one end of the translation bracket, which is close to the translation structure, is provided with an idler wheel, and a chain wheel arranged on the translation motor is connected with the idler wheel through a synchronous belt; the translation structure is provided with a synchronous belt pressing plate.

Furthermore, the translation structure comprises guide rails, jacking cylinders, a bottom plate, a quick-change tool, a tool plate positioning pin, a jacking plate, a self-lubricating bearing and a first guide pillar guide sleeve, wherein the bottom plate is installed on the guide rails, the jacking cylinders are arranged between the two guide rails, the side wall of each jacking cylinder is fixed on the bottom plate, the extending end of each jacking cylinder is connected with the corresponding jacking plate, one end of each first guide pillar guide sleeve is connected with the bottom plate, the other end of each first guide pillar guide sleeve is connected with the corresponding jacking plate, a through hole is formed in each jacking plate, the self-lubricating bearing is installed in the through hole, the quick-change tool is installed in an inner hole of the self-lubricating bearing, and the tool plate positioning pin is symmetrically installed on two sides of the quick-change tool.

Further, a linear bearing is arranged on the guide rail.

Furthermore, the upper pressure cylinder structure comprises a second guide pillar guide sleeve, a lengthened sleeve, a buffering structure, a force measuring sensor, a replaceable press-fitting head and an upper hydraulic cylinder, the upper hydraulic cylinder and the second guide pillar guide sleeve are both installed on an upper installation plate arranged at the upper end of the main body, meanwhile, the extending end of the upper hydraulic cylinder is arranged downwards, the lengthened sleeve is connected with the extending end of the upper hydraulic cylinder through a flange, the buffering structure and the force measuring sensor are installed between the flange connected to the lower portion of the upper hydraulic cylinder and the lengthened sleeve, and the replaceable press-fitting head is installed at one end, far away from the upper hydraulic cylinder, of the lengthened sleeve.

Furthermore, a connecting rod is arranged on the upper hydraulic cylinder and connected with a displacement sensor.

Furthermore, the lower cylinder pressing structure comprises a lower hydraulic cylinder and a lower pressing head, and the lower pressing head is arranged at the end part of the extending end of the lower hydraulic cylinder.

Further, the diameter of the lower hydraulic cylinder is larger than that of the upper hydraulic cylinder.

Furthermore, the hydraulic system adopts a servo motor pump set control system.

Compared with the prior art, the press machine has the following advantages: the press machine is actually applied to the motor assembly process at present, manual operation can be reduced, and compared with the conventional similar equipment, the press machine has the advantages of high precision and high accuracy. The invention can lead the reciprocating displacement error of the transportation to be always lower than 0.1mm by the integrated processing technology of the machine body and the use of the servo motor. The pressure sensor, the displacement sensor and the like feed back signals in real time, so that the workpiece is pressed and mounted at the correct height, the abnormal stress height alarms to stop running, and the product quality is ensured. According to practical use statistics, the defective rate is lower than 0.02%, and the press mounting success rate is far higher than the average level of the market.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a press according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a translation structure according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural diagram of an upper pressure cylinder according to an embodiment of the present invention;

FIG. 5 is a schematic sectional view B-B of FIG. 4;

FIG. 6 is a schematic structural view of an upper end portion of a press according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a hold-down cylinder according to an embodiment of the present invention;

fig. 8 is a hydraulic schematic of the present invention.

Description of reference numerals:

1. a main body frame; 2. a translation support; 3. a translation structure; 4. a translation motor; 5. an upper pressure cylinder structure; 6. a cylinder structure is pressed down; 7. a hydraulic system; 8. an electrical system; 9. a guide rail; 10. jacking a cylinder; 11. a base plate; 12. quickly replacing the tool; 13. positioning a pin by a tooling plate; 14. a jacking plate; 15. a self-lubricating bearing; 16. a first guide post and guide sleeve; 17. a second guide post and guide sleeve; 18. lengthening the sleeve; 19. a buffer structure; 20. a force sensor; 21. the press-fitting head can be replaced; 22. an upper hydraulic cylinder; 23. a displacement sensor; 24. a connecting rod; 25. a lower hydraulic cylinder; 26. the press-fitting head is pressed down.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-8, the present invention is a press machine, which comprises a main body 1, a translation support 2, a translation structure 3, a translation motor 4, an upper pressure cylinder structure 5, a lower pressure cylinder structure 6, a hydraulic system 7 and an electrical system 8, wherein the main body 1 is formed by welding profile steel and an iron plate, and all installation holes are integrally processed after welding the body, and have good rigidity and stable precision, the translation support 2 is formed by welding a square tube and an iron plate, and the upper surface of the translation support 2 is flattened after welding, so as to ensure the installation precision of the translation structure 3, the translation support 2 is installed on the left side of the main body 1, and the upper plane of the translation support is flush with the upper end face of an installation plate arranged at the lower end of the main body 1, the translation structure 3 is arranged above the translation support 2, and a guide rail 9 arranged on the translation mechanism is arranged on the translation support 2, just guide rail 9 extends to the mounting panel upper end that 1 lower extreme of main part fuselage set up, it installs to push down cylinder structure 6 on the mounting panel that 1 lower extreme of main part fuselage set up, just it is located two to push down cylinder structure 6 between the guide rail 9, translation motor 4 installs on the platform that 1 lower extreme of main part fuselage set up, just translation motor 4 sets up push down the right side of cylinder structure 6, it installs to go up the pressure cylinder mechanism main part fuselage 1's upper end, simultaneously go up the removable pressure equipment head 21 that sets up on the pressure cylinder structure 5 with the pressure equipment head 26 that pushes down that sets up on the pressure cylinder structure 6 sets up relatively.

An idler wheel is arranged at one end, close to the translation structure 3, of the translation bracket 2, and a chain wheel arranged on the translation motor 4 is connected with the idler wheel through a synchronous belt; and a synchronous belt pressing plate is arranged on the translation structure 3.

The translation structure 3 comprises guide rails 9, a jacking cylinder 10, a bottom plate 11, a quick-change tool 12, a tool plate positioning pin 13, a jacking plate 14, a self-lubricating bearing 15 and a first guide post guide sleeve 16, wherein the bottom plate 11 is installed on the guide rails 9, the jacking cylinder 10 is arranged between the two guide rails 9, the side wall of the jacking cylinder 10 is fixed on the bottom plate 11, the extending end of the jacking cylinder is connected with the jacking plate 14, the jacking cylinder 10 can be pushed out and retracted so as to drive the jacking plate 14, the self-lubricating bearing 15 and the quick-change tool 12 to move together, one end of the first guide post guide sleeve 16 is connected with the bottom plate 11, the other end of the first guide post guide sleeve is connected with the jacking plate 14, the first guide post guide sleeve 16 can play a role in auxiliary support, a through hole is formed in the jacking plate 14, and the self-lubricating bearing 15 is installed in the through, quick change frock 12 is installed in self-lubricating bearing 15's hole, frock board location pin 13 symmetry is installed the both sides of quick change frock 12, quick change frock 12 can be manually taken out the change, changes frock board location pin 13 and the pressure equipment of other types of products can be realized to quick change frock 12.

The guide rail 9 is provided with a linear bearing, so that the translation structure 3 can slide along the linear direction of the guide rail 9.

The upper pressure cylinder structure 5 comprises a second guide post guide sleeve 17, a lengthened sleeve 18, a buffer structure 19, a force measuring sensor 20, a replaceable press-fitting head 21 and an upper hydraulic cylinder 22, wherein the upper hydraulic cylinder 22 and the second guide post guide sleeve 17 are both arranged on an upper mounting plate arranged at the upper end of the main body 1, the extending end of the upper hydraulic cylinder 22 is arranged downwards, the lengthened sleeve 18 is connected with the extending end of the upper hydraulic cylinder 22 through a flange, the buffer structure 19 and the force measuring sensor 20 are arranged between the flange connected below the upper hydraulic cylinder 22 and the lengthened sleeve 18, the force measuring sensor 20 can feed back accurate pressure values in real time and can be accurate to 10N, the buffer structure 19 is a spherical washer, an inclined washer and a die spring which are matched with each other, so that the circumferential buffer function and the shock absorption function are achieved, therefore, the pressure stability and the accuracy of force measurement data are ensured when the hydraulic cylinder is started. The replaceable press-fitting head 21 is installed at one end of the extension sleeve 18 far away from the upper hydraulic cylinder 22, and press-fitting of other types of products can be achieved by replacing the replaceable press-fitting head.

The upper hydraulic cylinder 22 is provided with a connecting rod 24, the connecting rod 24 is connected with a displacement sensor 23, and in the process of pressing down the upper hydraulic cylinder structure 5, the displacement sensor 23 feeds back the descending position in real time and combines with the feedback of the pressure sensor to judge whether the action is in place or not, whether press-fitting errors occur or not and the like.

The lower cylinder structure 6 comprises a lower hydraulic cylinder 25 and a lower press-fitting head 26, wherein the lower press-fitting head 26 is installed at the end part of the extending end of the lower hydraulic cylinder 25.

The diameter of the lower hydraulic cylinder 25 is larger than that of the upper hydraulic cylinder 22, so that the lower hydraulic cylinder 25 is prevented from sinking in the process of pressing down the upper hydraulic cylinder 22.

The hydraulic system 7 adopts a servo motor pump set control system. Compared with the traditional hydraulic system 7, the servo motor pump set control system can effectively improve the speed of the press and reduce the power of the equipment. The servo control system can accurately control the speeds of the main cylinder and the ejection cylinder, the speeds of the main cylinder and the ejection cylinder can be set randomly in respective intervals, and the speeds of all stages are not influenced with each other. The conventional hydraulic system 7 can only achieve the speed correlation (the speeds are high or low) and can not select freely in the interval range. The servo control system can control the actual press-fitting force, and the pressure can be displayed and set on the touch screen. The pressure display precision can reach 0.1MPa, the pressure control precision is +/-0.3 MPa, and meanwhile, the pressure maintaining time can be preset. The press mounting process data of different workpieces can be preset and stored on the touch screen, and the touch screen is convenient and practical. The press can detect the actual press-mounting process of the workpiece in real time, and the system can automatically give an alarm to prompt when the press-mounting force exceeds the set upper and lower pressure limits, so that products which do not meet the press-mounting process requirements can be accurately identified.

The electric system 8 consists of a power circuit and a control circuit, wherein the power circuit is 380V, and the control circuit is DC 24V. The power circuit comprises a main power supply, a protection switch and a detection element, wherein the main power supply, the start and stop of each motor are controlled, and the control circuit adopts a Programmable Logic Controller (PLC) and an intelligent touch screen as a main control system, so that the equipment runs more stably and reliably. According to the technological requirements, the main command control element, including the instructions sent by selection switch and push button, processes the switching value and analog quantity of the machine according to the signals detected by the detection elements of displacement sensor 23, pressure sensor, travel switch and pressure relay, drives the hydraulic pilot valve and other devices, realizes the control of the pressure and displacement of the hydraulic execution element, namely oil cylinder, and further completes the production process of the machine. In order to ensure safety, the displacement point of switching between the fast descending of the upper pressure cylinder structure 5 and the slow descending of the upper pressure cylinder structure 5 can be freely set, the pressure can be rapidly monitored in real time in the fast descending process of the upper pressure cylinder structure 5, and the process can be stopped immediately if abnormal pressure rises in the process. Under normal operating mode, the in-process pressure is very low soon down to last pressure cylinder structure 5, the system can give a minimum safe pressure value, it is unusual to exceed this pressure system automatic judgement condition, the user can set for speed soon down according to the needs of actual production, thereby if in-process last pressure cylinder structure 5 runs into work piece or foreign matter at the time and thus pressure rise exceeds minimum safe set value, the system can be at once for the solenoid valve outage this moment, last pressure cylinder structure 5 stop motion is not down, thereby avoid dangerous emergence, equipment has unusual warning suggestion here simultaneously. The core function of the control part is completed by a PLC (programmable logic controller), the PLC is combined with an intelligent touch screen to display and control parameters in the forming process, main parameters, the stroke, the speed, the pressure, the time display and the like of a main pressure head are arranged, a fault alarm display is arranged in a control system, and the touch screen has a data parameter storage function and can store a plurality of sets of data parameters.

In the actual working process, as shown in fig. 1, the position of the translation mechanism is a feeding end, the position of the upper hydraulic cylinder 25 is a press-fitting position, the translation structure 3 is moved to the feeding end to ensure that the jacking plate 14 is moved in place, then the jacking cylinder 10 acts to jack the jacking plate 14, manual or automatic feeding is adopted, after the feeding is completed, the translation structure 3 is moved to the press-fitting position through the guide rail 9, after the translation structure 3 reaches the position, the lower hydraulic cylinder 25 starts to act, the lower hydraulic cylinder 25 jacks a round hole penetrating through the center of the bottom plate 11 of the translation structure 3 to jack the quick-change tool 12 for 5mm, the lifting action of the press-fitting position is completed, when the press-fitting operation is performed, the lower hydraulic cylinder 25 is in contact with the bottom surface of the quick-change tool 12, other workpieces of the translation structure 3 are not stressed, the lower hydraulic cylinder 25 jacks to enable the upper hydraulic cylinder 22 to rapidly move downwards, in order to ensure safety, the slow-downwards switching point of the upper hydraulic cylinder structure 5 and the upper, the pressure is rapidly monitored in real time in the process of fast descending of the upper hydraulic cylinder structure 5, if abnormal pressure rises in the process, the pressure is immediately stopped, after the upper hydraulic cylinder 22 descends to a certain height, the upper hydraulic cylinder 22 rapidly rotates and descends at a low speed until the upper hydraulic cylinder 22 is contacted with a workpiece, at the moment, the control system starts to carry out position and pressure operation, after the press fitting is in place, the upper hydraulic cylinder 22 and the lower hydraulic cylinder 25 return back respectively, the jacking cylinder 10 descends, the translation structure 3 moves back to the feeding end, and one-time press fitting can be completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.