CN106346089B - Sand control filters piece automatic feeding processingequipment - Google Patents

Abstract

The invention relates to an automatic feeding and processing device for a sand-prevention filter element, and belongs to the field of processing of underground drilling and production tools for petroleum. A sand control filter piece automatic feeding processingequipment includes: a lead screw transmission platform; the friction wheel transmission system is arranged on the lead screw transmission platform and moves along the axial direction of the lead screw along with the lead screw transmission platform; the U-shaped clamp body is arranged perpendicular to the axis of the screw rod transmission platform; the positioning and clamping structure is arranged parallel to the axis of the lead screw transmission platform; and the turning transmission system is arranged on the lead screw transmission platform, and a cutter in the turning transmission system performs axial feeding along with a lead screw in the lead screw transmission platform. By using the invention, automatic feeding, automatic positioning and clamping and one-time turning molding of the external thread of the filter element can be realized for the existing sand-proof filter element.

Description

An automatic feeding and processing device for sand control filter elements

technical field

The invention relates to the field of processing tools for oil well drilling, in particular to an automatic feeding and processing device for a sand control filter.

Background technique

Oil sand filtration and separation is a technical problem that must be solved in oil production operations in the petroleum industry. This problem is concentrated in the oil production operations of inland, offshore oil and gas fields, and deep-sea drilling screw platforms. In order to be able to , directly filter out the fine-grained gravel and larger-sized impurities in the extracted crude oil, and reduce the difficulty and workload of the subsequent sand purification work of the extracted crude oil. Developed. At present, the widely used mechanized oil well sand control filter device is the star-hole sand control screen, which uses stainless steel pipe as the base pipe, and threaded through holes are evenly distributed on the outer cylindrical surface of the stainless steel pipe, and the surrounding wall of the filter shell is also processed. There are threads, so the filter element can be easily screwed in and firmly installed in the through hole of the base pipe.

With the changes in the oil industry market, the market for downhole equipment will be greatly compressed, and the production quality and processing costs of sand control screens must be considered. According to the "Major Projects of the Thirteenth Five-Year Plan", the focus of petroleum equipment at this stage is the development of new equipment and the improvement of the efficiency of sand prevention and seepage of equipment.

The existing method for processing the thread on the outer surface of the sand control screen filter element is as follows: firstly use manual positioning and alignment of the processing position of the filter element, then operate the machine tool for processing and turning, and finally use a through gauge to check whether the thread is standard or not. The method is simple but too time-consuming, the output of the enterprise is low, and due to the irregularity of manual operation, it is difficult to reduce the reject rate of the external thread processing of the filter element.

Contents of the invention

The purpose of the present invention is to solve the above problems and provide an automatic feeding and processing device for sand control filter elements, which can realize automatic feeding, automatic positioning and clamping, and one-time turning and forming of the external thread of the filter element for the existing sand control filter elements.

The purpose of the present invention is achieved like this:

An automatic feeding and processing device for sand control filter elements, characterized in that it includes:

screw drive platform;

The friction wheel transmission system installed on the screw drive platform, the friction wheel transmission system moves along the screw axis along with the screw drive platform;

The U-shaped clamp body installed along the direction perpendicular to the axis of the screw in the screw drive platform;

A positioning clamping structure installed along a direction parallel to the axis of the screw in the screw drive platform;

The turning transmission system installed on the screw drive platform, the tool in the turning drive system is fed axially with the lead screw in the screw drive platform.

Wherein, the lead screw transmission platform includes a lead screw platform, a lead screw installed in the middle of the lower surface of the lead screw platform, and a pair of light rods symmetrically installed on the lower surface of the lead screw platform parallel to the axis of the lead screw.

Wherein, the friction wheel transmission system includes an axial guide rail installed on the screw drive platform, a friction wheel bracket installed on the axial guide rail, a friction wheel installed on the friction wheel bracket, and a motor driving the friction wheel to rotate.

Wherein, the U-shaped clamp specifically includes an upper jaw and a lower jaw with a symmetrical structure. After the upper jaw and the lower jaw are installed, they have a U-shaped structure with an open end, and a clamp guide rail is installed outside the closed end. A driven wheel is mounted on the inner side of the closed end, and conical rollers are respectively embedded in the upper jaw and the lower jaw near the open end.

Wherein, after the upper jaw and the lower jaw are installed, there are symmetrical V-shaped notches on the two opposite surfaces.

Wherein, the positioning and clamping structure includes a main shaft, a photoelectric detection component, a three-jaw chuck and a thimble, the main shaft passes through the center of the photoelectric detection component vertically, and the three-jaw chuck is clamped at the tail end of the main shaft. The thimble is coaxial with the main shaft and facing the center of the front face of the main shaft.

Wherein, the turning transmission system includes a tool holder and a tool assembly installed on the tool holder.

The beneficial effects of the present invention are:

(1) Fully automatic feeding, alignment and clamping of the sand control filter can be realized, which can minimize the labor cost of the enterprise.

(2) A photoelectric detection component is added to the positioning and clamping structure, so that automatic detection can be realized during the filter alignment process.

(3) Realize fully automatic processing, ensure the standard consistency of filter processing, reduce the scrap rate to the greatest extent, and improve production efficiency.

(4) The movement accuracy of the screw drive platform can be monitored by a Leica laser range finder, which greatly improves the reliability of the equipment and the processing progress.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of installation when the U-shaped clamp body clamps the sand control filter.

Fig. 3 is a schematic diagram of the installation of the positioning and clamping components.

Fig. 4 is a structural schematic diagram of the turning transmission system.

Figure 5 is a schematic diagram of the installation of the friction wheel transmission system and the turning transmission system.

Fig. 6 is a schematic view of the present invention when cutting the sand control filter.

In Figures 1 to 6:

1 is the screw platform, 2 is the axial guide rail, 3 is the friction wheel support, 4 is the screw, 5 is the feed rod, 6 is the motor, 7 is the friction wheel, 8 is the thimble, 9 is the U-shaped clamp body, 10 is the Sand control filter, 11 is the main shaft, 12 is the three-jaw chuck, 13 is the photoelectric detection device, 14 is the tool assembly, 15 is the knife holder, 16 is the upper jaw, 17 is the conical roller, 18 is the fixture guide rail, 19 is the Followed wheel, 20 is lower jaw.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

As shown in Figure 1, an automatic feeding and processing device for sand control filter elements includes the following parts:

1) screw drive platform;

The lead screw drive platform includes a lead screw platform 1, a lead screw 4 installed in the middle of the lower surface of the lead screw platform 1, and a pair of feed rods 5 symmetrically installed on the lower surface of the lead screw platform 1 parallel to the axial direction of the lead screw 4.

2) The friction wheel drive system installed on the lead screw drive platform;

As shown in Figure 5, the friction wheel transmission system specifically includes an axial guide rail 2 installed on the screw drive platform, a friction wheel bracket 3 installed on the axial guide rail 2, and a friction wheel bracket installed on the friction wheel bracket 3. 7, and the motor 6 that drives the friction wheel 7 to rotate; the friction wheel transmission system moves along the screw axis with the screw drive platform under the action of the motor 6 .

3) The U-shaped clamp body installed perpendicular to the axis of the screw in the screw drive platform;

As shown in Figure 2, the U-shaped clamp specifically includes an upper jaw 16 and a lower jaw 20 with symmetrical structures. The outside of the closed end is equipped with a clamp guide rail 18, and the inboard of its closed end is equipped with a driven wheel 19, and two conical rollers 17 are embedded respectively on the upper jaw 16 and the lower jaw 20 near its open end; After the jaws 16 and the lower jaws 20 are installed, there are also symmetrical V-shaped notches on the opposite two surfaces, and the conical rollers 17 are respectively installed symmetrically along the tips of the V-shaped notches.

4) A positioning and clamping structure installed parallel to the axis of the screw in the screw drive platform;

As shown in Figure 3, the positioning clamping structure includes a main shaft 11, a photoelectric detection part 13, a three-jaw chuck 12 and a thimble 8, the main shaft 11 passes through the center of the photoelectric detection part 13 vertically, and the three-jaw chuck 12 is clamped at the tail end of the main shaft 11. The front end of the main shaft 11 has three cylindrical positioning bosses. The center of the end face of the thimble 8 opposite to the front end also has a boss.

5) Turning transmission system installed on the screw transmission platform;

As shown in Figure 4, the turning transmission system specifically includes a tool rest 15 and a tool assembly 14 installed on the tool rest 15. On the platform, the tool among them is fed axially with the lead screw in the lead screw drive platform.

The steps of using this device to thread the sand control filter are as follows:

1) Install the friction wheel transmission system. Install and fix the axial guide rail 2 on the lead screw platform 1, the friction wheel bracket 3 is fixed on the axial guide rail 2, and can move axially along the axial guide rail 2, the friction wheel 7 is fixed on the friction wheel bracket 3, and It can be fed in a direction perpendicular to the axis of the lead screw 4, and at the same time the friction wheel 7 rotates under the drive of the motor 6, which can drive the sand control filter 10 to rotate.

2) Install the turning drive system. In order to complete the one-time turning of the external thread of the sand control filter element 10, a plurality of turning tools that meet the requirements are selected according to the geometric parameters (middle diameter, pitch, tooth angle, etc.) of the thread to be turned on the outer ring of the sand control filter element 10, And these turning tools are installed side by side on the vehicle frame along the direction perpendicular to the turning feeding direction, so that the external thread can be completed from rough turning to finishing turning at one time through one radial feeding.

3) Install the sand control filter 10 on the U-shaped clamp body. After the sand control filter 10 is selected and aligned, the upper jaw 16 and the lower jaw 20 in the U-shaped clamp body are tightened at the same time, and the sand control filter 10 is clamped in the V-shaped notch. At this time, the upper jaw 16 and the four conical rollers 17 installed on the lower jaw 20 and the driven wheel 19 installed on the clamp guide rail 18 are all in contact with the sand control filter 10 .

4) Positioning and clamping the sand control filter 10 installed in the U-shaped clamp body. The U-shaped clamp body clamping the sand control filter 10 is fed along the direction perpendicular to the axis of the main shaft 11, so that the sand control filter 10 is coaxial with the main shaft 11 having three cylindrical positioning bosses on the front end surface, and now has The thimble 8 of a boss is slowly fed along the axial direction of the main shaft 11 to clamp the sand control filter 10 . Then, the main shaft 11 clamped by the three-jaw chuck 12 starts to rotate slowly, and the photoelectric detection part 13 monitors the rotation angle of the main shaft 11, and the rotation angle of the control main shaft cannot be greater than 60°; meanwhile, the friction wheel 7 is placed on the friction wheel bracket 3 Under the action of feeding along the direction perpendicular to the axis of the main shaft 11, and rotate under the drive of the motor 6, thereby driving the sand control filter 10 to rotate, so that the uniformly distributed holes on the surface of the sand control filter 10 and the positioning protrusions on the front end of the main shaft 11 The table is aligned and clamped.

5) External thread processing of the sand control filter element 10 . Loosen the U-shaped clamp body, and the sand control filter 10 rotates under the drive of the main shaft 11 clamped by the three-jaw chuck 12, and the knife holders 15 are installed by multiple (more than 3) back knives in order. The tool assembly 14 composed of incremental turning tools starts to feed radially and axially with the movement of the lead screw platform 1 , and turns the surface thread of the sand control filter 10 , as shown in FIG. 6 .

Claims (5)

1. An automatic feeding processing device for sand control filter, characterized in that it comprises: screw drive platform; The friction wheel transmission system installed on the screw drive platform, the friction wheel transmission system moves along the screw axis along with the screw drive platform; A U-shaped clamp body installed along a direction perpendicular to the screw axis of the screw drive platform; the U-shaped clamp body includes an upper jaw (16) and a lower jaw (20) with symmetrical structures, and the upper jaw (16) After being installed with the lower jaw (20), it is a U-shaped structure with an open end. A clamp guide rail (18) is installed on the outside of its closed end, and a driven wheel (19) is installed on the inside of its closed end. The jaws (16) and the lower jaws (20) are respectively embedded with conical rollers (17); A positioning clamping structure installed along the direction parallel to the screw axis of the screw drive platform; the positioning clamping structure includes a main shaft (11), a photoelectric detection component (13), a three-jaw chuck (12) and a thimble (8), The main shaft (11) vertically passes through the center of the photoelectric detection part (13), the three-jaw chuck (12) is clamped on the tail end of the main shaft (11), and the front end of the main shaft (11) has three Cylindrical positioning boss; the thimble (8) is coaxial with the main shaft (11), and faces the center of the front end face of the main shaft (11), and the end face center of the thimble (8) opposite to the front end face of the main shaft (11) is also has a boss; The turning transmission system installed on the screw drive platform, the tool in the turning drive system is fed axially with the lead screw in the screw drive platform. 2. A kind of automatic feeding processing device for sand control filter according to claim 1, characterized in that, the screw drive platform comprises a screw platform (1), which is installed in the middle of the lower surface of the screw platform (1). A leading screw (4), and a pair of feed rods (5) symmetrically installed on the lower surface of the leading screw platform (1) parallel to the axis of the leading screw (4). 3. The automatic feeding and processing device for sand control filter parts according to claim 1, characterized in that, the friction wheel transmission system includes an axial guide rail (2) installed on the screw drive platform, installed on the axial The friction wheel support (3) on the guide rail (2), the friction wheel (7) installed on the friction wheel support (3), and the motor (6) that drives the friction wheel (7) to rotate. 4. The automatic feeding and processing device for a sand control filter element according to claim 1, characterized in that, after the upper jaw (16) and the lower jaw (20) are installed, the opposite surfaces have symmetrical V-shaped notch. 5. A kind of automatic feeding processing device for sand control filter according to claim 1, characterized in that, the turning transmission system comprises a knife rest (15) and a tool assembly (14) mounted on the knife rest (15) .