CN111822975A - A kind of servo press-fitting device for dynamic and static iron core of electric control valve - Google Patents

Abstract

The invention provides a servo press-fitting device for a movable iron core and a static iron core of an electric control valve, which structurally comprises a mounting bracket, a servo press, a tool sliding table, a product tool, a displacement detection device and a product detection device; the servo press is arranged at the top of the upper layer of the mounting support, the tool sliding table is fixed at the lower layer of the mounting support, the product tool is fixed on the upper surface of the tool sliding table, the displacement detection device is fixed on the front side of the lower surface of the tool sliding table, and the product detection device is arranged on the side face of the lower layer of the mounting support. The device has simple and reasonable structure, can effectively reduce the input cost and improve the clamping stability; the manual feeding position is changed through the sliding table, the equipment safety is improved, and the actual press-fitting state of the product is fed back in time.

Description

A kind of servo press-fitting device for dynamic and static iron core of electric control valve

technical field

The invention relates to a servo press-fitting device for a dynamic and static iron core of an electric control valve, which belongs to the technical field of automatic assembly equipment.

Background technique

With the rapid development of assembly and manufacturing industry and the continuous improvement of living standards, people continue to put forward higher requirements for the product quality of automated processing and assembly. Servo press is an energy-saving and high-efficiency hydraulic press that uses servo motor to drive the main transmission oil pump, reduces the control valve circuit, and controls the slider of the hydraulic press. Compared with ordinary hydraulic presses, the overall control of the servo press does not contain proportional servo. In the valve or proportional pump link, the service-driven hydraulic press has the advantages of energy saving, low noise, low temperature rise, good flexibility, high efficiency, and convenient maintenance. It can replace most of the existing ordinary hydraulic presses for stamping, die forging, pressing Straight and other technology, has broad market prospects. Compared with the traditional hydraulic press, the energy-saving effect is remarkable. According to the different processing technology and production rhythm, the servo-driven hydraulic press can save 30% to 70% of electricity compared with the traditional hydraulic press. However, in actual use, the general servo press cannot effectively eliminate the negative impact of the deformation of the workpiece during the press-fitting process on the press-fitting effect. Long-term use will lead to an increase in the defective rate of the product and virtually increase the production cost of the enterprise. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned defects existing in the structure of the existing servo press, and propose a servo press-fitting device for the dynamic and static iron core of an electric control valve. Feedback, compare the actual displacement of the servo press for displacement compensation, eliminate the negative impact of the deformation of the workpiece during the pressing process on the pressing effect, and ensure that the actual deformation of the workpiece is within the allowable range each time, Increase the qualified rate of press fitting and reduce production costs.

The technical solution of the present invention is as follows: an electronically controlled valve dynamic and static iron core servo pressing device, the structure of which includes a mounting bracket, a servo press, a tooling slide, a product tooling, a displacement detection device, and a product detection device; wherein the mounting bracket is divided into There are two upper and lower layers, the servo press is located on the top of the upper layer of the mounting bracket, the tooling slide is fixed on the lower layer of the mounting bracket, the product tooling is fixed on the upper surface of the tooling slide, and the displacement detection device is fixed on the lower front side of the tooling slide. The product detection device is arranged on the lower side of the mounting bracket.

Further, the installation bracket includes a lower fixing plate, a supporting column, and an upper press installation plate; wherein the lower fixing plate and the upper press installation plate are rectangular, and the four parallel installation columns are vertically fixed to the lower fixing plate. On the rear side of the upper surface, the top of each mounting column is respectively connected with the four corners of the lower surface of the upper press-fit mounting plate.

Further, the servo press includes a servo press main body, a press guide column limit ring, a press guide column, a linear bearing, a guide column mounting seat, a guide column mounting plate, a press head limit column, and a press head. , the press head fixing block quick-change knob; the left and right sides of the servo press main body are respectively provided with a press guide column symmetrically, and a press guide column limit ring is arranged on the upper part of each press guide column. The bottom of the guide column of the machine is provided with a linear bearing, which is matched with the round hole on the surface of the upper press mounting plate; the bottom of the linear bearing is provided with a guide column mounting seat, and the two guide column mounting seats are simultaneously installed on the guide column mounting plate. Upper surface; the indenter at the bottom of the main body of the servo press passes through the guide column mounting plate, and the surface of the indenter fixing block is installed on the side of the indenter through the quick-change knob; the two sides of the indenter are respectively provided with a press head limiter. bit column.

Further, the tooling sliding table includes a bottom plate, a rodless cylinder, a connecting block, a limit, a sliding table, and a guide rail; wherein the bottom plate is installed in the middle of the lower fixed plate, the rodless cylinder is installed on one side of the upper surface of the bottom plate, and the guide rail is installed. It is installed in parallel on the other side of the upper surface of the base plate, and the two ends of the guide rail are respectively provided with a limit;

Further, the product tooling includes a tooling base plate, a product placement block, a guide rail mounting block, a product guide rail, a spring, a clamping jaw mounting plate, a guide sleeve, a clamping jaw limit post, a clamping jaw, a roller, a support head, a base, and a connection. The product placement block and the guide rail mounting block are respectively fixed on the upper surface of the tooling base plate, the guide sleeve is installed on the product placement block, and the product guide rail is installed on the guide rail mounting block; two symmetrically arranged clamping jaw mounting plates are installed side by side on the product On the upper side of the guide rail, the spring is installed on the clamping jaw mounting plate (the bottom side of the clamping jaw is connected with two clamping jaw mounting plates, a pair of clamping jaws and a pair of rollers are symmetrically installed on the upper surface of the two clamping jaw mounting plates, and the clamping jaws are limited to The position post is installed on the base plate of the tooling and is located on the outer side of the clamping jaw; the tip of the support head is set between a pair of rollers, the rear side of the support head is connected with the base through the connecting plate, and the base is fixed on the lower part of the fixing plate of the installation bracket. side.

Further, the displacement detection device includes a displacement detection device, which is directly installed under the tooling slide; the product detection device includes a mounting bracket and a sensor, wherein the mounting bracket is fixed on the lower fixing plate, and the sensor is fixed on the mounting bracket. .

The working method of the device specifically includes the following steps:

1) Move the product tooling to the discharging position, and the support head fixed on the mounting bracket will spread the clamping jaws. The worker puts the dynamic and static iron core of the electric control valve into the product tooling, and then the tooling slide drives the product tooling away from the support head and clamps. The jaws are automatically clamped and continue to move to the working position;

2) The loading position of the worker moves from the bottom of the press to the outside of the press. The sensor installed on the bracket will detect the product on the tooling. Only when the product is detected, the worker presses the start button of the press with both hands, and the servo The press starts to work, improving the overall safety of the equipment;

3) At the same time when the servo press starts to work, the displacement detection device installed at the bottom of the tooling slide starts to work, monitors the actual deformation of the product in real time and feeds it back to the host, and then the host determines the deformation of the product and the servo press. Compared with the actual stroke of the servo press, the displacement of the servo press is compensated and then fed back to the servo press, so that the whole process of pressing can realize real-time feedback and eliminate the adverse effect of the deformation of the workpiece during the pressing process on the pressing results.

Compared with the prior art, the advantages of the present invention are:

1) The structure of the device is simple and reasonable, which can effectively reduce the input cost;

2) The clamping jaws are automatically tightened to improve the stability of clamping;

3) Change the manual feeding position through the sliding table to improve the safety of the equipment;

4) Through the displacement sensor installed under the tooling slide, the actual pressing state of the product can be fed back in time.

Description of drawings

1 is a schematic diagram of the overall structure of the servo press-fitting device for the dynamic and static iron cores of the electric control valve of the present invention.

Figure 2 is a schematic diagram of the structure of the mounting bracket device.

Figure 3 is a schematic structural diagram of a servo press device.

Figure 4 is a schematic structural diagram of the tooling slide device.

Figure 5 is a schematic structural diagram of a product tooling device.

In the figure 1 is the mounting bracket, 2 is the servo press, 3 is the tooling slide, 4 is the product tooling, 5 is the displacement detection device, 6 is the product detection device, 101 is the lower fixing plate, 102 is the support column, 103 is the upper part Press mounting plate, 201 is the main body of the servo press, 202 is the limit ring of the press guide column, 203 is the press guide column, 204 is the linear bearing, 205 is the guide column mounting seat, 206 is the guide column mounting plate, 207 is Press head limit column, 208 is the press head, 209 is the press head fixing block, 210 is the quick change knob, 301 is the base plate, 302 is the rodless cylinder, 303 is the connecting block, 304 is the limit, 305 is the sliding table, 306 is the guide rail, 401 is the tooling base plate, 402 is the product placement block, 403 is the guide rail mounting block, 404 is the product guide rail, 405 is the spring, 406 is the clamping jaw mounting plate, 407 is the guide sleeve, 408 is the clamping jaw limit post, 409 is a clamping jaw, 410 is a roller, 411 is a support head, 412 is a base, and 413 is a connecting plate.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings. Examples of such embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal" and "top" The orientation or positional relationship indicated by "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating Or imply that the referred device or element must have a specific orientation to be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a fixed connection. Integral; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in FIG. 1 , a servo press-fitting device for dynamic and static iron cores of an electric control valve, its structure includes a mounting bracket 1 , a servo press 2 , a tooling slide 3 , a product tooling 4 , a displacement detection device 5 , and a product detection device 6 ; The mounting bracket 1 is divided into upper and lower layers, the servo press 2 is arranged on the top of the upper layer of the mounting bracket 1, the tooling slide 3 is fixed on the lower layer of the mounting bracket 1, and the product tooling 4 is fixed on the upper surface of the tooling slide 3. The displacement detection The device 5 is fixed on the lower front side of the tooling slide 3 , and the product detection device 6 is arranged on the lower side of the mounting bracket 1 .

As shown in FIG. 2, the mounting bracket 1 includes a lower fixing plate 101, a supporting column 102, and an upper press mounting plate 103; wherein the lower fixing plate 101 and the upper press mounting plate 103 are rectangular, and four are installed parallel to each other. The vertical column 102 is fixed on the rear side of the upper surface of the lower fixing plate 101, and the top of each mounting column 102 is respectively connected with the four corners of the lower surface of the upper press-fitting mounting plate 103; the upper pressing machine mounting plate 103 is used for installing the servo The press 2 and the lower fixing plate 101 are used to install other equipment and components such as the tooling slide 3 .

As shown in FIG. 3 , the servo press 2 includes a servo press main body 201 , a press guide column limit ring 202 , a press guide column 203 , a linear bearing 204 , a guide column mounting seat 205 , and a guide column mounting plate 206 , press head limit post 207, press head 208, press head fixing block 209 quick change knob 210; the left and right sides of the servo press main body 201 are symmetrically provided with a press guide post 203, each press guide The upper part of the column 203 is provided with a press guide column limit ring 202, and the bottom of the press guide column 203 is provided with a linear bearing 204, which is matched and connected with the round hole on the surface of the upper press mounting plate 103; The bottom is provided with a guide column mounting seat 205, and two guide column mounting seats 205 are installed on the upper surface of the guide column mounting plate 206 at the same time; The pressing head fixing block 209 is installed on the side of the pressing head 208 by changing the knob 210 ; one pressing head limiting column 207 is respectively provided on both sides of the pressing head 208 .

As shown in FIG. 4 , the tooling sliding table 3 includes a bottom plate 301, a rodless cylinder 302, a connecting block 303, a limit 304, a sliding table 305, and a guide rail 306; wherein the bottom plate 301 is installed in the middle of the lower fixing plate 101, without The rod cylinder 302 is installed on one side of the upper surface of the base plate 301 , the guide rails 306 are installed on the other side of the upper surface of the base plate 301 in parallel, and two ends of the guide rail 306 are respectively provided with a limit 304 ; the sliding table 305 is installed on the upper surface of the guide rail 306 surface, and is connected with the rodless cylinder 302 through the connecting block 303 .

As shown in FIG. 5 , the product tooling 4 includes a tooling base plate 401 , a product placing block 402 , a guide rail mounting block 403 , a product guide rail 404 , a spring 405 , a clamping jaw mounting plate 406 , a guide sleeve 407 , and a clamping jaw limit post 408 , clamping jaw 409, roller 410, support head 411, base 412, connecting plate 413; the product placing block 402 and the guide rail mounting block 403 are respectively fixed on the upper surface of the tooling base plate 401, and the guide sleeve 407 is installed on the product placing block 402, The product guide rail 404 is installed on the guide rail mounting block 403; two symmetrically arranged clamping jaw mounting plates 406 are installed side by side on the upper side of the product guide rail 404, and the spring 405 is installed on the bottom side of the clamping jaw installation plate 406 and is connected with the two clamping jaws for installation The plate 406, a pair of clamping jaws 409 and a pair of rollers 410 are respectively symmetrically installed on the upper surfaces of the two clamping jaw mounting plates 406, and the clamping jaw limit posts 408 are installed on the tooling base plate 401 and are located on the outer side of the clamping jaws 409; The tip of the head 411 is set between a pair of rollers 410 , the rear side of the support head 411 is connected with the base 412 through the connecting plate 413 , and the base 412 is fixed on one side of the lower fixing plate 101 of the mounting bracket 1 .

The displacement detection device 5 includes a displacement detection device, which is directly installed under the tooling sliding table. The detection device adopts Keyence's high-precision contact digital sensor, specifically the GT2 series, which specifically detects the displacement of the product during the press-fitting process, and feeds it back to the control system in real time, and then the control system controls the displacement of the servo motor, thereby Realize the closed-loop control of the whole system.

The product detection device 6 includes a mounting bracket and a sensor, wherein the mounting bracket is fixed on the lower fixing plate 101, and the sensor is fixed on the mounting bracket, wherein the photoelectric sensor is used to detect whether the product is manually placed in place, and the opposite-radiation sensor detects the movement of the tooling. Whether the product is in the clamping tool when it arrives at the press-fitting position, so as to double-check the product and improve the overall safety and reliability of the press.

The working method of the device specifically includes the following steps:

1) Move the product tooling to the discharging position, and the support head fixed on the mounting bracket will spread the clamping jaws. The worker puts the dynamic and static iron core of the electric control valve into the product tooling, and then the tooling slide drives the product tooling away from the support head and clamps. The jaws are automatically clamped and continue to move to the working position;

2) The loading position of the worker moves from the bottom of the press to the outside of the press. The sensor installed on the bracket will detect the product on the tooling. Only when the product is detected, the worker presses the start button of the press with both hands, and the servo The press starts to work, improving the overall safety of the equipment;

3) At the same time when the servo press starts to work, the displacement detection device installed at the bottom of the tooling slide starts to work, monitors the actual deformation of the product in real time and feeds it back to the host, and then the host determines the deformation of the product and the servo press. Compared with the actual stroke of the servo press, the displacement of the servo press is compensated and then fed back to the servo press, so that the whole process of pressing can realize real-time feedback and eliminate the adverse effect of the deformation of the workpiece during the pressing process on the pressing results.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of this specification and the accompanying drawings, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. An electronically controlled valve dynamic and static iron core servo press-fitting device, characterized in that it includes a mounting bracket (1), a servo press (2), a tooling slide (3), a product tooling (4), and a displacement detection device (5). ), product testing device (6); the mounting bracket (1) is divided into upper and lower layers, the servo press (2) is located on the top of the upper layer of the mounting bracket (1), and the tooling slide (3) is fixed on the mounting bracket (1). ), the product tooling (4) is fixed on the upper surface of the tooling sliding table (3), the displacement detection device (5) is fixed on the lower front side of the tooling sliding table (3), and the product detection device (6) is installed in the installation The lower side of the bracket (1). 2. A servo press-fitting device for dynamic and static iron cores of an electric control valve according to claim 1, characterized in that the mounting bracket (1) comprises a lower fixing plate (101), a supporting column (102), and an upper press Mounting plate (103); wherein the lower fixing plate (101) and the upper press mounting plate (103) are rectangular, and four mutually parallel mounting columns (102) are vertically fixed to the rear side of the upper surface of the lower fixing plate (101) , the top of each mounting column (102) is respectively connected with the four corners of the lower surface of the upper press-fit mounting plate (103). 3. A servo press-fitting device for dynamic and static iron cores of an electric control valve according to claim 1 or 2, characterized in that the servo press (2) comprises a servo press main body (201), and the press guide column is limited Position ring (202), press guide column (203), linear bearing (204), guide column mounting seat (205), guide column mounting plate (206), press head limit column (207), press head (208) ), the press head fixing block (209) and the quick-change knob (210); the left and right sides of the servo press main body (201) are symmetrically provided with one press guide post (203), each press guide post (203) ) is provided with a press guide column limit ring (202), and the bottom of the press guide column (203) is provided with a linear bearing (204), which is in line with the circular hole on the surface of the upper press mounting plate (103). Matching connection; the bottom of the linear bearing (204) is provided with a guide column mounting seat (205), and two guide column mounting seats (205) are simultaneously installed on the upper surface of the guide column mounting plate (206); the main body of the servo press (201) The indenter (208) at the bottom passes through the guide column mounting plate (206), and the indenter fixing block (209) is installed on the side of the indenter (208) through the quick-change knob (210) on its surface; A press head limit post (207) is respectively provided on both sides. 4. A servo press-fitting device for dynamic and static iron cores of an electric control valve according to claim 1 or 2, characterized in that the tooling slide table (3) comprises a bottom plate (301), a rodless air cylinder (302), which is connected to block (303), limit (304), slide table (305), guide rail (306); the bottom plate (301) is installed in the middle of the lower fixing plate (101), and the rodless cylinder (302) is installed on the bottom plate (301) On one side of the upper surface, the guide rails (306) are installed side by side on the other side of the upper surface of the base plate (301), and two ends of the guide rails (306) are respectively provided with a limit position (304); the sliding table (305) is installed on the guide rails (306), and is connected with the rodless cylinder (302) through the connecting block (303). 5. The electro-controlled valve dynamic and static iron core servo press-fitting device according to claim 1 or 2, characterized in that the product tooling (4) comprises a tooling base plate (401), a product placing block (402), a guide rail Mounting block (403), product guide rail (404), spring (405), clamping jaw mounting plate (406), guide sleeve (407), clamping jaw limit post (408), clamping jaw (409), roller (410) , support head (411), base (412), connecting plate (413); the product placing block (402) and the guide rail mounting block (403) are respectively fixed on the upper surface of the tooling base plate (401), and the guide sleeve (407) is installed On the product placing block (402), the product guide rail (404) is installed on the guide rail mounting block (403); two symmetrically arranged clamping jaw mounting plates (406) are installed side by side on the upper side of the product guide rail (404), and the spring ( 405) is installed on the bottom side of the clamping jaw mounting plate (406) and connected to two clamping jaw mounting plates (406), a pair of clamping jaws (409) and a pair of rollers (410) are symmetrically installed on the two clamping jaw mounting plates respectively. On the upper surface of (406), the clamping jaw limit post (408) is installed on the tooling base plate (401) and is located on the outer side of the clamping jaw (409); the tip of the support head (411) is set between a pair of rollers (410) During the time, the rear side of the support head (411) is connected with the base (412) through the connecting plate (413), and the base (412) is fixed on one side of the lower fixing plate (101) of the mounting bracket (1). 6 . The servo press-fitting device for dynamic and static iron cores of an electric control valve according to claim 1 , wherein the displacement detection device ( 5 ) comprises a displacement detection device, which is directly installed under the tooling slide table. 7 . 7. A servo press-fitting device for dynamic and static iron cores of an electric control valve according to claim 1 or 2, characterized in that the product detection device (6) comprises a mounting bracket and a sensor, wherein the mounting bracket is fixed on the lower fixing plate (101), the sensor is fixed on the mounting bracket. 8. The electro-controlled valve dynamic and static iron core servo press-fitting device according to any one of claims 1-7, wherein the working method of the device specifically comprises the following steps: 1) Move the product tooling to the discharging position, and the support head fixed on the mounting bracket will spread the clamping jaws. The worker puts the dynamic and static iron core of the electric control valve into the product tooling, and then the tooling slide drives the product tooling away from the support head and clamps. The jaws are automatically clamped and continue to move to the working position; 2) The loading position of the worker moves from the bottom of the press to the outside of the press. The sensor installed on the bracket will detect the product on the tooling. Only when the product is detected, the worker presses the start button of the press with both hands, and the servo The press starts to work, improving the overall safety of the equipment; 3) At the same time when the servo press starts to work, the displacement detection device installed at the bottom of the tooling slide starts to work, monitors the actual deformation of the product in real time and feeds it back to the host, and then the host determines the deformation of the product and the servo press. Compared with the actual stroke of the servo press, the displacement of the servo press is compensated and then fed back to the servo press, so that the whole process of pressing can realize real-time feedback and eliminate the adverse effect of the deformation of the workpiece during the pressing process on the pressing results.

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