Corner indexing clamp for four-axis machining center of pipe joint

Abstract

The utility model discloses a corner indexing clamp for a four-axis machining center of a pipe joint, which comprises a bottom plate, a plurality of supporting columns connected with the bottom plate, an arc-shaped base connected among the supporting columns, a motor connected with the bottom plate through a mounting seat, a driving gear connected with an output rod of the motor, a mounting gear ring meshed with the driving gear, a rotating ring connected with one side of the mounting gear ring, and a rotating shaft connected with the rotating ring. The inner wall of the mounting gear ring is connected with a mounting inner ring through a plurality of connecting blocks, the four edges of the mounting inner ring are spaced by 90 degrees, through grooves are formed and rotationally connected with matched mounting cylinders, one side of each mounting cylinder is connected with a circular plate, and the outer wall of the mounting inner ring is connected with a support beside every two adjacent mounting cylinders. The support is connected with a second motor, the output end of the second motor is connected to a circular plate, each circular plate is connected with an electric cylinder, and the end of each electric cylinder is connected with a limiting block.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machining fixtures, and in particular relates to an angular indexing fixture for a four-axis machining center of a pipe joint. Background Art

[0002] Pipe fittings are the connection tools between pipes and are the detachable connection points between components and pipes. They play an indispensable and important role in pipe fittings, and are one of the two main components of hydraulic pipes. Pipe fittings are used for linear connections such as instruments, and the connection forms include socket welding or threaded connection. They are mainly used for small-diameter low-pressure pipelines, for parts that need to be frequently assembled and disassembled, or for the final adjustment of pipelines using threaded pipe fittings. Related products are included in Kuaiyiyou. The structural form should adopt a metal surface contact sealing structure. The gasket sealing structure is usually used in general pipelines for conveying water, oil, air, etc., and is made of malleable cast iron.

[0003] Four-axis machining centers can adapt to the parts processing of the mold industry, automobile parts and wheel processing, automated mechanical processing, and are also widely used in aerospace and other fields. When using a four-axis machining center for machining, it is combined with a transfer indexing fixture to rotate and fix at a limited angle. When using a four-axis machining center to process polyhedrons, multi-angle complex surface pipe joints, the workpiece processing requires multiple clamping, and there will be problems such as errors caused by secondary clamping. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide an angular indexing fixture for a four-axis machining center of a pipe joint.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A rotatable indexing fixture for a four-axis machining center of a pipe joint comprises a base plate, the base plate is connected to a plurality of pillars, an arc-shaped base is connected between the pillars, the base plate is connected to a motor through a mounting seat, the output rod of the motor is connected to a driving gear, the driving gear is meshed with a mounting gear ring, a rotating ring is connected to one side of the mounting gear ring, the arc-shaped base is provided with an arc-shaped groove adapted to the rotation of the rotating ring, the inner wall of the mounting gear ring is connected to a mounting inner ring through a plurality of connecting blocks, the four sides of the mounting inner ring are spaced 90° apart, a through groove is provided, and a matching mounting cylinder is rotatably connected, a circular plate is connected to one side of the mounting cylinder, the outer wall of the mounting inner ring is connected to a bracket beside two adjacent mounting cylinders, the bracket is connected to a second motor, the output end of the second motor is connected to the circular plate, each of the circular plates is connected to an electric cylinder, and a limiting block is connected to the end of the electric cylinder.

[0007] It is further defined that the outer wall of the mounting inner ring is connected with an arc-shaped pad of matching shape on the side contacting the mounting cylinder. Such a structural design can enhance the stability of the mounting cylinder during rotation.

[0008] It is further defined that the limit block includes two groups of limit cylinders and arc-shaped limit blocks respectively arranged in correspondence, the bottom of the inner wall of the limit cylinder is connected to a limit ring, and a matching rubber pad is adhered to the surface of the arc-shaped limit block. Such a structural design is convenient for positioning according to different angles of the clamping pipe joint.

[0009] It is further defined that the bracket is composed of a plurality of blocks arranged in an L-shape. Such a structural design achieves a supporting effect while preventing interference with the rotation of the installation cylinder.

[0010] It is further defined that the ends of the pillars on both sides are connected to second pillars, and arc-shaped semicircular blocks are connected between the ends of the second pillars on both sides. High-precision angle marking lines are provided on one side of the surface of the arc-shaped semicircular block. Such a structural design can facilitate the staff to observe the rotation angle of the pipe joint.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model includes connecting components such as a motor, a driving gear, a mounting gear ring, a mounting inner ring, a second motor, a mounting cylinder, an electric cylinder and a limit block. The components cooperate to achieve the effect of automatically driving the pipe joint to change the surface facing the processing equipment based on the X-axis, Y-axis and Z-axis as the axis. There is no need to clamp the pipe joint repeatedly to prevent errors, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 It is a schematic cross-sectional view of the overall structure of an embodiment of an angle indexing fixture for a four-axis machining center of a pipe joint of the utility model;

[0015] Figure 2 The utility model is a four-axis machining center for a pipe joint. Figure 1 The structural diagram of A in FIG.

[0016] Figure 3 The utility model is a four-axis machining center for a pipe joint. Figure 1 Schematic diagram of the structure at B.

[0017] The main component symbols are described as follows:

[0018] Base plate 1, support column 101, arc base 102, mounting seat 103;

[0019] Driving gear 2;

[0020] Install the gear ring 3 and the connecting block 3001;

[0021] Install the inner ring 4, the arc-shaped pad 4001, the bracket 401, and the second motor 402;

[0022] Install the cylinder 5 and the circular plate 501;

[0023] Electric cylinder 6;

[0024] Limit block 7, limit cylinder 701, limit ring 7011, arc limit block 702, rubber pad 7021;

[0025] The second pillar 8, the arc-shaped semicircular block 801, and the high-precision angle marking line 802. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-3 As shown, the utility model is an angular indexing fixture for a four-axis machining center of a pipe joint, comprising a base plate 1, the base plate 1 is connected to a plurality of pillars 101, an arc base 102 is connected between the pillars 101, the base plate 1 is connected to a motor through a mounting seat 103, the output rod of the motor is connected to a driving gear 2, the driving gear 2 is meshed with a mounting gear ring 3, one side of the mounting gear ring 3 is connected to a rotating ring, the arc base 102 is provided with an arc groove adapted to the rotation of the rotating ring, the inner wall of the mounting gear ring 3 is connected to an mounting inner ring 4 through a plurality of connecting blocks 3001, the four sides of the mounting inner ring 4 are spaced 90° apart, a through groove is provided, and a matching mounting cylinder 5 is rotatably connected, a circular plate 501 is connected to one side of the mounting cylinder 5, the outer wall of the mounting inner ring 4 is connected to a bracket 401 beside two adjacent mounting cylinders 5, the bracket 401 is connected to a second motor 402, the output end of the second motor 402 is connected to the circular plate 501, each circular plate 501 is connected to an electric cylinder 6, and the end of the electric cylinder 6 is connected to a limiting block 7.

[0028] In the embodiment of the present case, before starting to process the pipe joint, the staff will vertically place the pipe joint above the limit block 7 on the lower side, and then start the two electric cylinders 6 corresponding to the upper and lower directions through the central controller. The two electric cylinders 6 extend to drive the distance between the connected limit blocks 7 to become smaller until the upper and lower sides of the pipe joint are fixed, and then control to start the two electric cylinders 6 in the left and right directions on both sides. The two electric cylinders 6 drive the distance between the corresponding limit blocks 7 to become smaller until the left and right sides of the pipe joint are fixed. At this time, the processing surface of the pipe joint is stationary facing the processing equipment. After the processing equipment processes this surface, when it is needed When changing other processing surfaces of the pipe joint, first determine the direction and axis of rotation of the changed processing surface of the pipe joint, then start the second motor 402 corresponding to the axis and the electric cylinder 6 with an adjacent interval of 90°, first control the electric cylinder 6 to contract and release the pipe joint, then the output end of the second motor 402 drives the circular plate 501, the mounting cylinder 5 and the connecting assembly to rotate 90° or other degrees until the changed processing surface faces the processing equipment, then control the electric cylinder 6 to extend and limit to fix the two sides of the pipe joint, and so on to adjust the states of the electric cylinder 6 and the second motor 402 in the two axes respectively;

[0029] Among them, the motor drives the active gear 2 to rotate, and when the active gear 2 rotates, it drives the meshing mounting gear ring 3 to rotate in the arc groove of the arc base 102, so as to achieve the effect of driving the mounting gear ring 3 and its connecting components to rotate as a whole. In summary, such a structural design can achieve the effect of automatically driving the pipe joint to change the surface facing the processing equipment based on the X-axis, Y-axis and Z-axis as the axis, without repeatedly clamping the pipe joint to prevent errors, thereby improving the processing efficiency.

[0030] Preferably, the outer wall of the mounting inner ring 4 is connected with a matching arc-shaped pad 4001 on the side contacting the mounting cylinder 5. Such a structural design can enhance the stability of the mounting cylinder 5 during rotation. In fact, other structural shapes that can enhance the rotation stability of the mounting cylinder 5 can also be considered according to specific circumstances.

[0031] Preferably, the limit block 7 includes two groups of limit cylinders 701 and arc-shaped limit blocks 702, respectively arranged correspondingly, the bottom of the inner wall of the limit cylinder 701 is connected to a limit ring 7011, and a matching rubber pad 7021 is adhered to the surface of the arc-shaped limit block 702. Such a structural design is convenient for clamping the pipe joint at different angles. In fact, other structural shapes that are convenient for clamping the pipe joint at different positions can also be considered according to specific circumstances.

[0032] Preferably, the bracket 401 is composed of a plurality of L-shaped blocks, and such a structural design achieves a supporting effect while preventing obstruction to the rotation of the mounting cylinder 5. In fact, other structural shapes that can achieve a supporting effect and are convenient to use can also be considered according to specific circumstances.

[0033] Preferably, the ends of the two side pillars 101 are connected to the second pillars 8, and the ends of the two side second pillars 8 are connected to an arc-shaped semicircular block 801, and a high-precision angle marking line 802 is provided on one side of the surface of the arc-shaped semicircular block 801. Such a structural design can facilitate the staff to observe the rotation angle of the pipe joint. In fact, other convenient structural shapes can also be considered according to specific circumstances.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An angular indexing fixture for a four-axis machining center of a pipe joint, comprising a base plate (1), wherein the base plate (1) is connected to a plurality of pillars (101), characterized in that: An arc-shaped base (102) is connected between the pillars (101); the bottom plate (1) is connected to a motor via a mounting seat (103); the output rod of the motor is connected to a driving gear (2); the driving gear (2) is meshed with a mounting gear ring (3); one side of the mounting gear ring (3) is connected to a rotating ring; the arc-shaped base (102) is provided with an arc-shaped groove adapted to rotate with the rotating ring; the inner wall of the mounting gear ring (3) is connected to a mounting inner ring (4) via a plurality of connecting blocks (3001); the four sides of the mounting inner ring (4) are Matching mounting cylinders (5) are rotatably connected with through grooves arranged at intervals of 90 degrees, a circular plate (501) is connected to one side of the mounting cylinder (5), the outer wall of the mounting inner ring (4) is connected to brackets (401) beside two adjacent mounting cylinders (5), the bracket (401) is connected to a second motor (402), the output end of the second motor (402) is connected to the circular plate (501), each of the circular plates (501) is connected to an electric cylinder (6), and the end of the electric cylinder (6) is connected to a limiting block (7).

2. The angular indexing fixture for a four-axis machining center of a pipe joint according to claim 1, characterized in that: An arc-shaped cushion block (4001) of matching shape is connected to the outer wall of the mounting inner ring (4) on the side contacting the mounting cylinder (5).

3. The angular indexing fixture for a four-axis machining center of a pipe joint according to claim 2, characterized in that: The limit block (7) comprises two groups of limit cylinders (701) and arc-shaped limit blocks (702) which are respectively arranged correspondingly; the bottom of the inner wall of the limit cylinder (701) is connected to a limit ring (7011); and a matching rubber pad (7021) is adhered to the surface of the arc-shaped limit block (702).

4. The angular indexing fixture for a four-axis machining center of a pipe joint according to claim 3, characterized in that: The support (401) is composed of a plurality of blocks arranged in an L shape.

5. The angular indexing fixture for a four-axis machining center of a pipe joint according to claim 4, characterized in that: The ends of the pillars (101) on both sides are connected to the second pillars (8), and an arc-shaped semicircular block (801) is connected between the ends of the second pillars (8) on both sides. A high-precision angle marking line (802) is provided on one side of the surface of the arc-shaped semicircular block (801).

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