CN210059902U - Screw pair for processing electric valve positioner - Google Patents

Abstract

The utility model discloses a lead screw pair for processing an electric valve positioner, which is used for a positive and negative plane processing system for drilling parts, wherein the positive and negative plane processing system comprises a lead screw pair motor driving mechanism, an upper drill bit motor driving mechanism and a lower drill bit motor driving mechanism, and the upper drill bit motor driving mechanism and the lower drill bit motor driving mechanism are respectively in transmission connection with the lead screw pair motor driving mechanism through a sliding block component; the screw rod pair is simultaneously provided with a clockwise thread section and an anticlockwise thread section which are mutually connected, the clockwise thread section is sleeved with an upper screw nut, the anticlockwise thread section is sleeved with a lower screw nut, and the upper screw nut and the lower screw nut are simultaneously fixedly installed and connected with the sliding block assembly; the utility model discloses greatly reduced the consumption of transmission erection joint spare, do benefit to and reduce the cost of processing and reduce occuping of installation volume simultaneously, especially be fit for being applied to the processing of electropneumatic valve locator spare part pore structure.

Description

Screw pair for processing electric valve positioner

Technical Field

The utility model belongs to belong to spare part manufacturing field, concretely relates to a lead screw pair for processing electric valve locator especially is fit for being applied to the processing of electric valve locator spare part pore structure.

Background

As is known, a limit switch is an electrical switch that defines the extreme positions of movement of a mechanical device, an electrical valve positioner is a main accessory of a regulating valve, and both limit switches and electrical valve positioners are widely used in a number of product areas.

Some structural technical solutions for improving the electric valve positioner and the limit switch exist, but related technologies for processing parts and components of the electric valve positioner and the limit switch are few. However, as the technology in each product field is upgraded, the manufacturing requirements of the electric valve positioner and limit switch products applied to the electric valve positioner and limit switch products tend to be high in precision and efficiency. However, the manufacturing and processing technologies of the electric valve positioner and the limit switch in the prior art are still according to the traditional processing technology, and it is increasingly difficult to meet the manufacturing and processing requirements of the application product field that tend to be high-precision and high-efficiency.

Disclosure of Invention

In view of this, the utility model aims at providing a lead screw pair for processing electric valve locator has greatly reduced the consumption of transmission erection joint spare, does benefit to and reduces occupation of installation volume simultaneously to reduce the processing cost, is particularly suitable for being applied to the processing of electric valve locator spare part pore structure.

The utility model adopts the technical scheme as follows:

a screw pair for processing an electric valve positioner is used for a front and back plane processing system for drilling parts, and the front and back plane processing system comprises a screw pair motor driving mechanism, an upper drill bit motor driving mechanism and a lower drill bit motor driving mechanism, wherein the upper drill bit motor driving mechanism and the lower drill bit motor driving mechanism are respectively in transmission connection with the screw pair motor driving mechanism through a sliding block assembly; the screw rod pair is simultaneously provided with a clockwise thread section and an anticlockwise thread section which are connected with each other, the clockwise thread section is sleeved with an upper screw, the anticlockwise thread section is sleeved with a lower screw, and the upper screw and the lower screw are fixedly installed and connected with the sliding block assembly.

Preferably, the sliding block assembly comprises a sliding block mounting seat, a sliding rail mounted on the sliding block mounting seat, an upper sliding block and a lower sliding block which are respectively connected with the sliding rail in a sliding manner, and an upper sliding block mounting plate and a lower sliding block mounting plate which are respectively fixedly mounted on the upper sliding block and the lower sliding block; the upper sliding block is fixedly installed and connected with the upper screw nut, and the lower sliding block is fixedly installed and connected with the lower screw nut; the upper sliding block mounting plate is fixedly mounted and connected with the upper drill bit motor driving mechanism, and the lower sliding block mounting plate is fixedly mounted and connected with the lower drill bit motor driving mechanism.

Preferably, two ends of the screw rod pair are relatively rotatably mounted on the bearing base through bearings.

The utility model has the advantages that:

1. the utility model provides a positive and negative plane processing system is used in spare part drilling, the spare part of processing drilling can be treated simultaneously through setting up by the double drill bit motor-driven mechanism that constitutes of last drill bit motor-driven mechanism and lower drill bit motor-driven mechanism in same axis carries out the two-way processing of positive and negative plane, ensures that processing is high-efficient quick, simultaneously the utility model discloses a vice motor-driven mechanism of lead screw realizes connecting the transmission control of double drill bit motor-driven mechanism through same slider component, consequently, the utility model discloses not only have the high-precision processing effect to spare part drilling structure, moreover the mounting structure is compact, especially is fit for being applied to the processing of electric valve locator spare part hole structure, also can be as required with the utility model discloses be applied to the processing of limit switch hole structure;

2. the utility model discloses preferably provide and add on the vice motor-drive mechanism of lead screw and set up opto-coupler sensor subassembly, arrange through reasonable mounting structure, realized through the selective inserting groove that inserts opto-coupler sensor of opto-coupler separation blade and whether the vice motor-drive mechanism of lead screw has accomplished the motor and has reset, specifically do: when the optical coupling separation blade is inserted into the insertion groove of the optical coupling sensor, the motor is reset; the motor reset function of the utility model can ensure the initial reset function of the motor after the starting or each time of drilling work stroke is finished, thus ensuring the precision processing degree of drilling and avoiding the drilling processing error caused by the loss of the motor;

3. the utility model discloses preferably provide a unique screw rod pair structure, specifically be equipped with interconnect's clockwise screw thread section and anticlockwise screw thread section simultaneously on the screw rod pair, respectively with screw fixed connection, adopt single screw member spare to realize the screw transmission of relative direction promptly, satisfied the utility model discloses when the two drilling of positive and negative plane processing system for spare part drilling carry out positive and negative plane processing simultaneously, greatly reduced the consumption of transmission installation connecting piece, do benefit to and reduce the occupation that the processing cost reduced the installation volume simultaneously;

4. the utility model preferably provides a protective structure of a part drilling positive and negative plane processing system, in particular to an anti-collision plastic lug arranged on the upper end surface of an upper slide block mounting plate, which can effectively prevent the upper slide block mounting plate from colliding with a screw rod motor mounting plate to be damaged when sliding upwards along the upper slide block, and can effectively avoid the generation of collision noise while realizing good protection through the simple lug structure;

5. the utility model discloses preferably provide the two drill bit motor drive mechanisms that spare part drilling processing was used, specifically through setting up by the last drill bit motor drive mechanism and the lower drill bit motor drive mechanism that are in same axis to constitute, this two drill bit motor drive mechanism is through being connected with the vice motor drive mechanism transmission of lead screw, can treat the spare part of processing drilling simultaneously and carry out the two-way processing of positive and negative plane, and processing when guaranteeing the spare part drilling is high-efficient quick, the utility model discloses still further preferably, realize the transmission of drill bit subassembly and motor drive subassembly respectively through the belt pulley subassembly and be connected, can effectively reduce the occupation of axial mounting height, do benefit to the compactness of structural mounting;

6. the utility model discloses preferably provide and set up ultrasonic ranging appearance and ultrasonic ranging appearance down at last drill bit motor drive mechanism and lower drill bit motor drive mechanism respectively, can realize treating the hole depth of processing the spare part of drilling apart from real-time status and carry out high-precision feedback control, and then ensure the utility model discloses carry out the high precision when drilling man-hour to the spare part.

Drawings

FIG. 1 is a schematic diagram of a front and back plane processing system 100 for drilling electric valve positioner parts according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

fig. 3 is a schematic structural diagram of a screw pair motor driving mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a screw pair according to an embodiment of the present invention;

FIG. 5 is a schematic view of a protection structure of a front and back plane processing system for drilling electric valve positioner parts according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a slider assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a lower drill motor driving mechanism according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an opto-coupler sensor assembly according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an upper ultrasonic distance meter and a lower ultrasonic distance meter according to an embodiment of the present invention.

Detailed Description

The embodiment of the utility model discloses a screw pair for processing an electric valve positioner, which is used for a positive and negative plane processing system for drilling parts, wherein the positive and negative plane processing system comprises a screw pair motor driving mechanism, an upper drill bit motor driving mechanism and a lower drill bit motor driving mechanism; the screw pair is simultaneously provided with a clockwise thread section and an anticlockwise thread section which are connected with each other, the clockwise thread section is sleeved with an upper screw, the anticlockwise thread section is sleeved with a lower screw, and the upper screw and the lower screw are fixedly installed and connected with the sliding block assembly.

The embodiment of the utility model provides a preferably provide a unique vice structure of lead screw, specifically be equipped with interconnect's clockwise screw thread section and anticlockwise screw thread section simultaneously on the lead screw is vice, respectively with screw fixed connection, adopt single lead screw spare to realize the screw transmission of relative direction promptly, satisfying the utility model discloses when the two bores of positive and negative plane processing system for spare part drilling carry out positive and negative plane processing simultaneously, greatly reduced transmission erection joint spare's consumption, do benefit to and reduce the occupation that the processing cost reduced the installation volume simultaneously.

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a front and back plane processing system 100 for drilling electric valve positioner parts includes a screw pair motor driving mechanism 600 and a dual-drill motor driving mechanism; the double-drill-bit motor driving mechanism comprises an upper drill-bit motor driving mechanism 200 and a lower drill-bit motor driving mechanism 300; the upper drill 221 of the upper drill motor driving mechanism 200 and the lower drill 321 of the lower drill motor driving mechanism 300 are located on the same axis, and the rotation direction of the upper drill 221 is the same as that of the lower drill 321, specifically, in this embodiment, the rotation directions of the upper drill 221 and the lower drill 321 are both counterclockwise; the upper drill motor driving mechanism 200 and the lower drill motor driving mechanism 300 are respectively in transmission connection with the screw pair motor driving mechanism 600 through the sliding block assembly 500;

referring to fig. 3, in the present embodiment, the screw pair motor driving mechanism 600 includes a screw pair 610 and a screw motor driving assembly 620 in transmission connection with the screw pair 610, and referring to fig. 4, the screw pair 610 is simultaneously provided with a clockwise threaded section 610a and an anticlockwise threaded section 610b which are connected to each other, the clockwise threaded section 610a is sleeved with an upper screw 631, the anticlockwise threaded section 610b is sleeved with a lower screw 632, and the upper screw 631 and the lower screw 632 are simultaneously fixedly mounted and connected to the slider assembly 500;

preferably, in the present embodiment, the lead screw motor driving assembly 620 is in transmission connection with the lead screw pair 610 through the lead screw pulley assembly 640; the lead screw motor driving assembly 620 comprises a lead screw motor 622 with a lead screw motor output shaft 621 and a lead screw motor driver 623, and the lead screw motor driver 623 is fixedly arranged on the lead screw motor 622; the lead screw pulley assembly 640 comprises a lead screw driving pulley 642 and a lead screw driven pulley 643 which are in transmission connection through a lead screw belt 641; the end part of an output shaft 621 of the screw motor is tightly inserted into a shaft hole of a screw driving belt pulley 642, and the upper end part of the screw pair 610 is tightly inserted into a shaft hole of a screw driven belt pulley 643; the screw motor 622 is installed on the screw motor installation plate 410, and two ends of the screw pair are installed on the bearing base 420 through the bearing 421 in a relatively rotatable manner; a screw rod installation protective shell 430 fixedly connected with the screw rod motor installation plate 410 is arranged on the outer side surface of the screw rod belt pulley assembly 640;

preferably, in the present embodiment, please further refer to fig. 6, the slider assembly 500 includes a slider mounting seat 530, a sliding rail 510 mounted on the slider mounting seat 530, an upper slider 521 and a lower slider 522 respectively slidably connected to the sliding rail 510, and an upper slider mounting plate 531 and a lower slider mounting plate 532 respectively fixedly mounted on the upper slider 521 and the lower slider 522, an anti-collision plastic bump 700 is disposed on an upper end surface of the upper slider mounting plate 531, and the anti-collision plastic bump 700 directly serves as a protection structure of the front and back surface processing system 100 for drilling parts in the present embodiment; wherein, the upper slide block 521 is fixedly installed and connected with the upper nut 631, and the lower slide block 522 is fixedly installed and connected with the lower nut 632; the upper slider mounting plate 531 is fixedly mounted and connected with the upper drill motor driving mechanism 200, the lower slider mounting plate 532 is fixedly mounted and connected with the lower drill motor driving mechanism 300, the upper end of the slider mounting seat 530 is fixedly mounted on the lead screw motor mounting plate 410, and the lower end of the slider mounting seat 530 is fixedly connected with the bearing base 420;

preferably, as further shown in fig. 5 and 8, in this embodiment, the screw pair motor driving mechanism 600 further includes an optical coupler sensor assembly 650 for resetting, the optical coupler sensor assembly 650 includes an optical coupler sensor 651 fixedly mounted on the screw motor mounting plate 410 and an optical coupler blocking piece 652 fixedly mounted on the upper slider mounting plate 531, the optical coupler sensor 651 is in control connection with the screw motor driver 623, the optical coupler blocking piece 652 is selectively inserted into the insertion slot 651a of the optical coupler sensor 651, and when the optical coupler blocking piece 652 is inserted into the insertion slot 651a of the optical coupler sensor 651, it indicates that the screw motor 622 has completed resetting; the utility model discloses a lead screw motor 622 reset function can ensure the lead screw motor 622 initial reset function after just starting or drilling working stroke each time finishes, can ensure the precision finishing degree of drilling like this, avoid because lead screw motor 622 loses step and produces the drilling machining error, therefore, the opto-coupler sensor subassembly 650 design of this embodiment makes the vice motor drive mechanism 600 of lead screw in this embodiment have high-accuracy reset function;

particularly preferably, the anti-collision plastic bump 700 is directly fixed on the optical coupler blocking piece 652, and the structure is favorable for being compact on the premise of ensuring the protection effect;

preferably, as further shown in fig. 2, in the present embodiment, the upper drill motor driving mechanism 200 includes an upper drill assembly 220 and an upper motor driving assembly 230 respectively mounted on the upper motor mounting plate 210, and the upper drill assembly 220 is in transmission connection with the upper motor driving assembly 230 through an upper belt pulley assembly 240; the upper drill bit assembly 220 comprises an upper drill bit 221, the upper drill bit 221 is fixedly locked in an upper chuck 222, the upper chuck 222 is fixedly mounted on the upper motor mounting plate 210, and an upper drill bit output shaft 223 is relatively rotatably mounted at the end of the upper chuck 222 through a bearing; the upper belt pulley assembly 240 includes an upper driving pulley 242 and an upper driven pulley 243 drivingly connected by an upper belt 241; the upper motor driving assembly 230 comprises an upper motor 232 with an upper motor output shaft 231 and an upper motor driver 233, wherein the upper motor driver 233 is fixedly arranged on the upper motor 232; the end part of the upper motor output shaft 231 is tightly inserted into the shaft hole of the upper driving belt pulley 242, and the end part of the upper drill bit output shaft 223 is tightly inserted into the shaft hole of the upper driven belt pulley 243; an upper mounting protective shell 440 fixedly connected with the upper motor mounting plate 210 is arranged on the outer side surface of the upper belt wheel assembly 240;

preferably, as further shown in fig. 7, in the present embodiment, the lower drill motor driving mechanism 300 includes a lower drill head assembly 320 and a lower motor driving assembly 330 respectively mounted on the lower motor mounting plate 310, and the lower drill head assembly 320 is in transmission connection with the lower motor driving assembly 330 through a lower pulley assembly 340; the lower drill bit assembly 320 comprises a lower drill bit 321, the lower drill bit 321 is fixedly locked in a lower chuck 322, the lower chuck 322 is fixedly mounted on the lower motor mounting plate 310, and a lower drill bit output shaft 323 is relatively rotatably mounted at the end part of the lower chuck 322 through a bearing; the lower pulley assembly 340 comprises a lower driving pulley 342 and a lower driven pulley 343 which are in transmission connection through a lower belt 341; the lower motor driving component 330 comprises a lower motor 332 with a lower motor output shaft 331 and a lower motor driver 333, and the lower motor driver 333 is fixedly arranged on the lower motor 332; the end part of the lower motor output shaft 331 is tightly inserted into the shaft hole of the lower driving belt pulley 342, and the end part of the lower drill bit output shaft 323 is tightly inserted into the shaft hole of the lower driven belt pulley 343; the outer side surface of the lower belt pulley assembly 340 is provided with a lower mounting protective shell 450 fixedly connected with the lower motor mounting plate 310;

specifically, in the present embodiment, the upper slider mounting plate 531 is fixedly mounted and connected to the upper motor mounting plate 210, and the lower slider mounting plate 532 is fixedly mounted and connected to the lower motor mounting plate 310;

preferably, the front and back plane processing system 10 for drilling parts in the present embodiment has a high precision distance measuring function, and particularly preferably, in the present embodiment, the upper drill motor driving mechanism 200 further includes an upper ultrasonic distance meter 250, and the upper ultrasonic distance meter 250 is in control connection with the upper motor driver 233; the lower drill motor driving mechanism 300 further comprises a lower ultrasonic distance meter 350, and the lower ultrasonic distance meter 350 is in control connection with a lower motor driver 333;

further preferably, as shown in fig. 9, in the present embodiment, the upper ultrasonic range finder 250 includes an upper range finding probe 251 and an upper ultrasonic control device installed inside an upper range finder housing 252, and the upper ultrasonic control device is in control connection with the upper motor driver 233; the lower ultrasonic range finder 350 includes a lower range finding probe 351 and a lower ultrasonic control device installed inside a lower range finder housing 352, and the lower ultrasonic control device is in control connection with the lower motor driver 333.

The upper ultrasonic ranging device 250 and the lower ultrasonic ranging device 350 of the present embodiment can realize high precision feedback control on the real-time state of the hole depth distance of the component to be drilled, and further ensure the high precision of the present embodiment when drilling the component.

It should be noted that, when the present embodiment is used, a component to be processed and drilled may be positioned on the tooling table, specifically, any suitable tooling table in the prior art may be used, and the present embodiment does not limit the present embodiment specifically, and the tooling table is displaced to a position between the upper drill and the lower drill to perform hole processing on the front and back planes.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. A screw pair for processing an electric valve positioner is used for a front and back plane processing system for drilling parts, and the front and back plane processing system comprises a screw pair motor driving mechanism, an upper drill bit motor driving mechanism and a lower drill bit motor driving mechanism, wherein the upper drill bit motor driving mechanism and the lower drill bit motor driving mechanism are respectively in transmission connection with the screw pair motor driving mechanism through a sliding block assembly; the sliding block assembly is characterized in that a clockwise thread section and an anticlockwise thread section which are connected with each other are arranged on the screw rod pair at the same time, an upper screw nut is sleeved on the clockwise thread section, a lower screw nut is sleeved on the anticlockwise thread section, and the upper screw nut and the lower screw nut are fixedly installed and connected with the sliding block assembly at the same time.

2. The screw pair for manufacturing an electrical valve positioner according to claim 1, wherein the slider assembly comprises a slider mounting seat and a slide rail mounted on the slider mounting seat, an upper slider and a lower slider slidably connected to the slide rail, respectively, and an upper slider mounting plate and a lower slider mounting plate fixedly mounted on the upper slider and the lower slider, respectively; the upper sliding block is fixedly installed and connected with the upper screw nut, and the lower sliding block is fixedly installed and connected with the lower screw nut; the upper sliding block mounting plate is fixedly mounted and connected with the upper drill bit motor driving mechanism, and the lower sliding block mounting plate is fixedly mounted and connected with the lower drill bit motor driving mechanism.

3. The screw pair for manufacturing an electrical valve positioner according to claim 2, wherein both ends of the screw pair are relatively rotatably mounted on the bearing base through bearings.

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