Positioning tool for flange product production

Abstract

The invention discloses a positioning tool for flange product production, and belongs to the technical field of machine tool machining part positioning, the positioning tool is mounted on a rotating machine tool, a bridge plate is mounted between two rotating discs of the rotating machine tool, and a plurality of quick sockets with holes are symmetrically mounted on the upper surface and the lower surface of the bridge plate; mounting holes for connecting the pressing tool are formed in the tray at equal intervals, positioning discs are mounted on the two sides of the mounting holes, a quick plug for connecting a quick socket with holes is arranged at the bottom of the tray, the pressing tool comprises a pressing plate and connecting bolts, an elastic contact head is mounted at the bottom of a side hole of the pressing plate, and the limiting tool is arranged on the side face of each positioning disc. The limiting tool comprises a limiting seat, a positioning seat and an elastic contact surface; and the elastic contact surface, the positioning disc and the elastic contact head form an adjustable limiting space for positioning the flange piece. Compared with the prior art, the special-shaped flange is machined through a four-axis machine tool, a plurality of products can be positioned through one-time clamping, automatic overturning can be achieved in the machining process, and the machining efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning of machine tool processing parts, and in particular to a positioning tool for producing flange products. Background Art

[0002] Special-shaped flanges are core components of industrial pipelines, petroleum fields, instrument pumps, compressors, and reducer products. Their function is to connect various pipelines, ensure the safe and stable operation of pipelines in high-pressure, high-temperature, and corrosive media environments, ensure that the equipment is firmly connected during operation, and reduce the impact of vibration and displacement.

[0003] In the production process of special-shaped flanges, the following two methods are commonly used: Method 1) Drilling and tapping using a rotary chuck and a three-axis machining center. The rotary chuck uses two V-shaped clamping flanges. After turning the stop, it is rotated 90 degrees to process the two surfaces and the middle threaded hole. The stop and one of the surfaces are then used for positioning to process the threaded holes on both surfaces.

[0004] Method 2) Use a lathe to process both sides and the center thread, and then use a three-axis machining center to drill and tap. Use a clamping jaw to process only the stop. Then use the lathe L-plate fixture structure, use the positioning core to position and the side push block to guide. The two-jaw chuck is pressed tightly, and the center threaded hole is turned over once in the middle. Finally, the stop and one side are used for positioning to process the threaded holes on both sides.

[0005] In existing technology solutions, lathes can only process one product at a time, and this is highly dependent on the shape of the blank. Unstable clamping and positioning lead to inconsistent product quality, and manual flipping is required during center machining, resulting in low production efficiency.

[0006] Therefore, how to design a positioning tool for flange product production to solve the above technical problems has long plagued technical personnel in this field. Summary of the Invention

[0007] In response to the above technical problems, the present invention provides a positioning tool for flange product production, which solves the above problems through the following technical means: A positioning tool for flange product production, characterized in that it is installed on a rotary machine tool, and includes a pallet, a pressing tool and a limiting tool, wherein: a turntable is correspondingly installed on the front and rear bases of the rotary machine tool, the outer end of the turntable is connected to a rotating shaft, a bridge plate is installed between the two turntables, and a plurality of quick sockets with holes are symmetrically installed on the upper and lower surfaces of the bridge plate; mounting holes for connecting the pressing tool are equidistantly arranged on the pallet, positioning plates are installed on both sides of the mounting holes of the pallet, and a quick plug for connecting the quick sockets with holes is provided at the bottom of the pallet; the pressing tool includes a pressing plate and a connecting screw Bolt, a central hole is provided in the middle of the clamping plate, side holes are provided at both ends of the clamping plate, the top connecting head of the connecting bolt is provided in the central hole of the clamping plate, the bottom threaded end of the connecting bolt is installed in the mounting hole, and an elastic contact head is installed at the bottom of the side hole of the clamping plate; the limiting tooling is provided on the side of the positioning plate, the limiting tooling includes a limiting seat, a positioning seat and an elastic contact surface, the positioning seat is fixed on the pallet, the limiting seat is installed by engaging with the positioning seat through an inclined surface, and an elastic contact surface is provided on the outside of the limiting seat; the elastic contact surface, the positioning plate and the elastic contact head constitute an adjustable limiting space for the positioning flange.

[0008] Preferably, a plurality of telescopic balls are symmetrically installed on the inner wall of the central hole of the perforated quick socket, wherein: the telescopic ball is installed in the radial channel, a spring is provided at the bottom of the radial channel, the inner end of the telescopic ball contacts the spring, the outer end of the telescopic ball is limited by a limiting ring, and the limiting ring is provided with a limiting hole at the position corresponding to the radial channel, and the diameter of the limiting hole is 2 / 3 to 5 / 6 of the diameter of the telescopic ball.

[0009] Preferably, a limiting ring groove and a guiding inclined surface are sequentially provided at the end of the quick plug from the inside to the outside.

[0010] Preferably, handles are provided at both ends of the pallet, and an operating seat and an operating joint for docking with a logistics robot arm are provided in the middle of the pallet.

[0011] Preferably, a dynamic docking slope is provided on the inner side of the limiting seat, a center docking groove is provided in the middle of the dynamic docking slope, a fixed docking slope is provided on the outer side of the positioning seat, a center docking platform is provided in the middle of the fixed docking slope, the inclination angles of the dynamic docking slope and the fixed docking slope are consistent, and the center docking groove and the center docking platform can engage with each other.

[0012] Preferably, the end surface of the limiting seat is connected to the elastic contact surface via a transverse positioning screw, and the limiting seat and the positioning seat are fixed to the tray via a vertical positioning screw after being engaged.

[0013] Preferably, the front and rear end faces of the flange are symmetrically provided with three end face screw holes, the four corners of the upper and lower faces of the flange are provided with connecting holes, the upper middle part of the flange is provided with a waist-shaped platform, and the lower middle part of the flange is provided with a semicircular cavity, wherein: the semicircular cavity of the flange is limited by the positioning plate during positioning; the side plane of the flange is limited by the elastic contact surface of the limiting tooling during positioning; the waist-shaped platform of the flange is limited and clamped by the elastic contact head of the clamping tooling during positioning.

[0014] The positioning tool for flange product production of the present invention has the following beneficial effects: 1) The upper and lower surfaces of the bridge plate of the rotary machine tool are symmetrically installed with multiple quick sockets with holes, which can quickly install two pallets, realize one-time installation and automatic flipping, and process multiple special-shaped flanges at one time.

[0015] 2) The positioning plate on the tray can be flexibly replaced to meet the needs of flanges of different sizes. The end of the quick plug is provided with a guiding slope, which can quickly enter the quick socket with a hole.

[0016] 3) The clamping plate of the clamping tool is limited by connecting bolts, and elastic contact heads are provided at the bottom of both sides of the clamping plate to prevent the tool from scratching the workpiece during processing.

[0017] 4) The limit seat and the positioning seat of the limit fixture adopt a detachable structure, which can flexibly replace the limit seat to meet the needs of flanges of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] FIG1 is a schematic diagram of the disassembly and assembly of a pallet according to the present invention; FIG2 is a schematic diagram of the tray installation of the present invention; FIG3 is a schematic diagram of the positions of the upper and lower trays of the present invention; FIG4 is a schematic diagram of the structure of a tray of the present invention; FIG5 is a schematic structural diagram of a quick socket with holes according to the present invention; FIG6 is a schematic diagram of the flange positioning of the present invention; FIG7 is a schematic structural diagram of a quick plug according to the present invention; FIG8 is a schematic diagram of the front structure of the flange of the present invention; FIG9 is a schematic diagram of the back structure of the flange of the present invention.

[0020] Among them, 1-rotating machine tool, 101-base, 102-turntable, 103-rotating shaft, 104-bridge plate, 105-quick socket with hole, 106-telescopic ball, 107-limiting ring, 108-limiting hole, 2-tray, 201-mounting hole, 202-positioning plate, 203-quick plug, 204-guide slope, 205-limiting ring groove, 206-handle, 207-operating seat, 208-operating joint, 3-pressing tooling, 301-pressing Tightening plate, 302-connecting bolt, 303-elastic contact head, 4-limiting tooling, 401-limiting seat, 402-positioning seat, 403-elastic contact surface, 404-dynamic docking bevel, 405-center docking groove, 406-fixed docking bevel, 407-center docking platform, 408-horizontal positioning screw, 409-vertical positioning screw, 5-flange, 501-end face screw hole, 502-connecting hole, 503-waist-shaped platform, 504-semicircular cavity. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] As shown in Figures 1 to 9, the positioning tooling for flange product production is installed on a rotary machine tool 1, including a pallet 2, a pressing tooling 3 and a limiting tooling 4, wherein: turntables 102 are correspondingly installed on the front and rear bases 101 of the rotary machine tool 1, the outer ends of the turntables 102 are connected to the rotating shaft 103, and a bridge plate 104 is installed between the two turntables 102, and the end face of the bridge plate 104 is installed on the diameter line of the turntable 102.

[0024] In the figure, multiple quick-release sockets 105 with holes are symmetrically mounted on the upper and lower surfaces of the bridge plate 104. Specifically, in this example, two quick-release sockets 105 are symmetrically mounted on the upper and lower surfaces of each bridge plate 104. The multiple quick-release sockets symmetrically mounted on the upper and lower surfaces of the bridge plate of the rotary machine tool allow for the rapid installation of two pallets, enabling one-time installation and automatic flipping, and the simultaneous processing of multiple special-shaped flanges.

[0025] In the figure, tray 2 is equidistantly provided with mounting holes 201 for attaching the clamping fixture 3. Positioning plates 202 are mounted on either side of the mounting holes 201. These plates can be flexibly replaced to accommodate flanges of varying sizes. A quick plug 203 is provided at the bottom of tray 2 for attaching the perforated quick socket 105.

[0026] Specifically, multiple retractable balls 106 are symmetrically mounted on the inner wall of the central hole of the perforated quick socket 105. The retractable balls 106 are installed within a radial channel, the bottom of which is provided with a spring. The inner end of the retractable balls 106 contacts the spring, while the outer end of the retractable balls 106 is limited by a retaining ring 107. The retaining ring 107 defines a retaining hole 108 corresponding to the radial channel. The diameter of the retaining hole 108 is 2 / 3 to 5 / 6 of the diameter of the retractable balls 106. Furthermore, the end of the quick plug 203 is provided with a retaining ring groove 205 and a guide ramp 204, which includes an entry ramp and an exit ramp. After contacting the ramp, the retractable balls 106 can move backward under pressure. The guide ramp at the end of the quick plug allows for rapid entry into the perforated quick socket.

[0027] In the figure, the clamping tool 3 includes a clamping plate 301 and a connecting bolt 302. A central hole is provided in the middle of the clamping plate 301, and side holes are provided at both ends of the clamping plate 301. The top connecting head of the connecting bolt 302 is provided in the central hole of the clamping plate 301, and the bottom threaded end of the connecting bolt 302 is installed in the mounting hole 201. An elastic contact head 303 is installed at the bottom of the side hole of the clamping plate 301.

[0028] Specifically, the clamping plate of the clamping tool is limited by connecting bolts, and elastic contact heads are provided at the bottom of both sides of the clamping plate to prevent the tool from scratching the workpiece during processing.

[0029] In the figure, the limiting tooling 4 is arranged on the side of the positioning plate 202. The limiting tooling 4 includes a limiting seat 401, a positioning seat 402 and an elastic contact surface 403. The positioning seat 402 is fixed on the tray 2. The limiting seat 401 is installed by engaging with the positioning seat 402 through an inclined surface. The elastic contact surface 403 is arranged on the outer side of the limiting seat 401.

[0030] In this example, a dynamic docking bevel 404 is provided on the inner side of the limiting seat 401, and a central docking groove 405 is provided in the middle of the dynamic docking bevel 404. A fixed docking bevel 406 is provided on the outer side of the positioning seat 402, and a central docking platform 407 is provided in the middle of the fixed docking bevel 406. The inclination angles of the dynamic docking bevel 404 and the fixed docking bevel 406 are consistent, and the central docking groove 405 and the central docking platform 407 can engage with each other. The end face of the limiting seat 401 is connected to the elastic contact surface 403 by a horizontal positioning screw 408. After the limiting seat 401 and the positioning seat 402 are engaged, they are fixed to the tray 2 by a vertical positioning screw 409.

[0031] Specifically, a detachable structure is adopted between the limiting seat and the positioning seat of the limiting tooling, so that the limiting seat can be flexibly replaced to meet the needs of flanges of different sizes.

[0032] In the figure, handles 206 are provided at both ends of the pallet 2, and an operating seat 207 and an operating joint 208 for docking with a logistics robot arm are provided in the middle of the pallet 2. The operating joint 208 is provided in the middle of the operating seat 207. The operating joint 208 is a card seat that can dock with a robot arm for transfer.

[0033] In the figure, three end screw holes 501 are symmetrically provided on the front and rear end faces of the flange part 5, connecting holes 502 are provided at the four corners of the upper and lower faces of the flange part 5, a waist-shaped platform 503 is provided in the middle of the upper part of the flange part 5, and a semicircular cavity 504 is provided in the middle of the lower part of the flange part 5. Specifically, the flange products are used in pairs during assembly, and the position accuracy of the semicircular cavity 504 and the four connecting holes 502 is required to be within 0.6mm, otherwise the bolts cannot be assembled with the semicircular cavity 504 of the other flange through the connecting hole 502.

[0034] During operation, flange 5 is first mounted on pallet 2. The semicircular cavity 504 of flange 5 is positioned by positioning disc 202. The side plane of flange 5 is also positioned by the elastic contact surface 403 of limiting fixture 4. The waist-shaped platform 503 of flange 5 is also positioned and compressed by the elastic contact head 303 of compression fixture 3. The elastic contact surface 403, positioning disc 202, and elastic contact head 303 form an adjustable space for positioning flange 5. Next, pallet 2 is secured to the bridge plate. This fixture utilizes a four-axis machine tool to process special-shaped flanges. Multiple products can be positioned in a single clamping operation, and automatic flipping during processing significantly improves processing efficiency.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A positioning tool for flange product production, characterized in that: Installed on a rotary machine tool (1), comprising a pallet (2), a pressing fixture (3) and a limiting fixture (4), wherein: The rotary machine tool (1) has two bases (101) on the front and rear sides thereof respectively provided with turntables (102), the outer ends of the turntables (102) being connected to a rotating shaft (103), a bridge plate (104) being provided between the two turntables (102), and a plurality of quick sockets (105) with holes being symmetrically provided on the upper and lower surfaces of the bridge plate (104); The tray (2) is provided with mounting holes (201) for connecting to the pressing tool (3) at equal intervals, and positioning plates (202) are installed on both sides of the mounting holes (201) of the tray (2). A quick plug (203) for connecting to a quick socket with a hole (105) is provided at the bottom of the tray (2); The clamping fixture (3) comprises a clamping plate (301) and a connecting bolt (302), wherein a central hole is provided in the middle of the clamping plate (301), and side holes are provided at both ends of the clamping plate (301), a top connecting head of the connecting bolt (302) is provided in the central hole of the clamping plate (301), a bottom threaded end of the connecting bolt (302) is installed in the mounting hole (201), and an elastic contact head (303) is installed at the bottom of the side hole of the clamping plate (301); The position limiting fixture (4) is arranged on the side of the positioning plate (202), and the position limiting fixture (4) includes a position limiting seat (401), a positioning seat (402), and an elastic contact surface (403). The positioning seat (402) is fixed on the tray (2), and the position limiting seat (401) is engaged with the positioning seat (402) through an inclined surface. The elastic contact surface (403) is arranged on the outer side of the position limiting seat (401); The elastic contact surface (403), the positioning plate (202) and the elastic contact head (303) constitute an adjustable limiting space for positioning the flange (5).

2. The positioning tool for flange product production according to claim 1, characterized in that: A plurality of telescopic round balls (106) are symmetrically mounted on the inner wall of the central hole of the hole-carrying quick socket (105), wherein: The telescopic ball (106) is installed in the radial channel, a spring is provided at the bottom of the radial channel, the inner end of the telescopic ball (106) contacts the spring, the outer end of the telescopic ball (106) is limited by a limiting ring (107), and the limiting ring (107) is provided with a limiting hole (108) at a position corresponding to the radial channel, and the diameter of the limiting hole (108) is 2 / 3 to 5 / 6 of the diameter of the telescopic ball (106).

3. The positioning tool for flange product production according to claim 1, characterized in that: The end of the quick plug (203) is provided with a limiting ring groove (205) and a guiding inclined surface (204) in sequence from the inside to the outside.

4. The positioning tool for flange product production according to claim 1, characterized in that: Both ends of the tray (2) are provided with handles (206), and the middle portion of the tray (2) is provided with an operating seat (207) and an operating joint (208) for docking with a logistics robot arm.

5. The positioning tool for flange product production according to claim 1, characterized in that: A movable docking bevel (404) is provided on the inner side of the limiting seat (401), a central docking groove (405) is provided in the middle of the movable docking bevel (404), a fixed docking bevel (406) is provided on the outer side of the positioning seat (402), a central docking platform (407) is provided in the middle of the fixed docking bevel (406), the movable docking bevel (404) and the fixed docking bevel (406) have the same inclination angle, and the central docking groove (405) and the central docking platform (407) can engage with each other.

6. The positioning tool for flange product production according to claim 1, characterized in that: The end surface of the limiting seat (401) is connected to the elastic contact surface (403) via a transverse positioning screw (408), and the limiting seat (401) and the positioning seat (402) are fixed to the tray (2) via a vertical positioning screw (409) after being engaged.

7. The positioning tool for flange product production according to claim 1, characterized in that: The front and rear end surfaces of the flange (5) are symmetrically provided with three end screw holes (501), the four corners of the upper and lower surfaces of the flange (5) are provided with connection holes (502), the middle part of the upper surface of the flange (5) is provided with a waist-shaped platform (503), and the middle part of the lower surface of the flange (5) is provided with a semicircular cavity (504), wherein: The semicircular cavity (504) of the flange (5) is limited by the positioning plate (202) during positioning; the side plane of the flange (5) is limited by the elastic contact surface (403) of the limiting tool (4) during positioning; and the waist-shaped platform (503) of the flange (5) is limited and pressed by the elastic contact head (303) of the pressing tool (3) during positioning.

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