Opening milling universal tool for gapped straight three-petal packing type machining center

Abstract

According to the opening milling universal tool for the gapped straight three-petal packing type machining center, a base is arranged on the outer side of the tool, the top face of a chuck is flush with the top face of a floating pressing plate, arc-shaped guide grooves are annularly formed in the surface of the chuck at equal intervals, and a hexagonal hole is formed in the center of the chuck; the locking sliding blocks are arranged on the two sides of the lower portion of the floating pressing plate in a bevel edge attaching mode, the lead screws are transversely arranged on the inner sides of the locking sliding blocks in a penetrating mode, the sliding grooves are formed in the two sides of the middle of the clamping jaw, the fixing column is arranged at the upper end of the clamping jaw, and the guide column is arranged at the lower end of the clamping jaw. The guide columns of the clamping jaws are arranged on the inner sides of the arc-shaped guide grooves in the inner side of the chuck in an inserted mode, linkage type opening and closing are achieved by rotating the chuck, and therefore clamping and positioning are convenient, the locking sliding block and the floating pressing plate are matched so that the lower pressing plate can move up and down rapidly through the lead screw, and rapid jacking type fixing is achieved. Therefore, the pressing strength and the fixing strength of the workpiece are guaranteed, operation is easy, and positioning is accurate.

Description

Technical Field

[0001] The present invention belongs to the technical field of universal tooling for milling and opening, and specifically relates to a universal tooling for milling and opening for a straight three-petal filler type machining center with a gap. Background Art

[0002] CNC milling machine is an automatic processing equipment developed on the basis of general milling machine. The processing technology of the two is basically the same, and the structure is somewhat similar. CNC milling machine can be divided into two categories: without tool magazine and with tool magazine. Among them, CNC milling machine with tool magazine is also called machining center.

[0003] When a CNC machining center is in use, it usually needs to be used with a fixture so that the fixture can easily clamp the workpiece, making it easier for the CNC center to perform processing.

[0004] For the milling opening of straight three-petal annular products with gaps made of plastic materials, the fixtures used to be made of one set of fixtures for each specification of products during processing on the machining center. The fixture utilization rate was low, and it was troublesome to frequently change the fixtures during the production process. Utility Model Content

[0005] In order to solve the above problems, this paper proposes a universal tooling for milling openings for a straight three-petal filler machining center with a gap, a base is provided on the outside of the tooling, an upper pressure plate and a lower pressure plate are provided inside the base, a milling workpiece is provided between the upper pressure plate and the lower pressure plate, the shape of the base is a rectangular shell, an upper pressure plate is provided on the inner side of the top surface of the base in a plug-in manner, a lower pressure plate is provided below the upper pressure plate, a clamping claw is movably provided on the inner side of the lower pressure plate, the bottom surface of the lower pressure plate is fitted and connected with the top surface of the chuck and the floating pressure plate, the chuck is embedded on the inner side of the floating pressure plate, the top surface of the chuck is flush with the top surface of the floating pressure plate, the surface of the chuck is provided with arc guide grooves at equal intervals in an annular manner, a hexagonal hole is provided in the center of the chuck, and both sides of the bottom of the floating pressure plate are beveled The fitting type is provided with a locking slider, and a screw rod is horizontally penetrated on the inner side of the locking slider, and sliding grooves are provided on both sides of the middle part of the clamping claw, a fixing column is provided on the upper end of the clamping claw, and a guide column is provided on the lower end of the clamping claw. The guide column of the clamping claw is plug-in-type and arranged on the inner side of the arc-shaped guide groove on the inner side of the chuck. Through the chuck under the lower pressure plate, the clamping claw that originally moves in a straight line can be opened and closed in a linkage manner by rotating the chuck, so as to achieve convenient clamping and positioning, and the middle rotation method can also be conveniently operated through the lower pressure plate, and the cooperation of the locking slider and the floating pressure plate can quickly move the lower pressure plate up and down through the screw rod, so as to realize rapid top pressure fixation, thereby ensuring the clamping strength and fixing strength of the workpiece, simple operation and precise positioning.

[0006] The outer contour of the base is rectangular, and a rectangular slot is provided inside the top surface of the base. Insertion slots are provided on both sides of the rectangular slot, and a circular blind hole is provided below the rectangular slot. Rectangular guide grooves are provided on both sides of the bottom surface of the circular blind hole. A lower pressure plate, a chuck and a floating pressure plate are provided on the inner side of the circular blind hole. A locking slider is provided on the inner side of the rectangular guide groove. The upper pressure plate can be easily installed through the rectangular slot with the insertion slot, and the upper pressure plate can also be installed and fixed, and the internal circular blind hole can facilitate the floating pressure plate to move up and down.

[0007] The upper pressure plate is in the shape of a rectangular plate, with a milling groove on its upper surface, guide plug-in edges on both sides of the upper pressure plate, and a grabbing groove in the middle of one end of the upper pressure plate. The guide plug-in edge is plug-inly arranged on the inner top surface of the base. The upper pressure plate with the grabbing groove can be easily and quickly inserted into the base, which can facilitate the replacement of the upper pressure plate while completing the replacement of the workpiece.

[0008] The lower pressure plate is in the shape of a circular disk, with a through hole provided at the center of the surface of the lower pressure plate, and guide translation grooves provided in an annular manner and equidistantly therefrom, with milling grooves provided between the guide translation grooves, and claws provided on the inner sides of the guide translation grooves in an inserted manner, and the position of the milling groove of the lower pressure plate is the same as that of the milling groove of the upper pressure plate, and a fixed groove is provided on one side of the lower pressure plate, and the lower pressure plate realizes stable movement of the claws through the guide translation groove, and the milling groove can be avoided during the milling process, and the fixed groove can play an auxiliary positioning role to prevent the chuck from offsetting when it rotates.

[0009] The chuck is in the shape of a circular disk, and the surface of the chuck is provided with annular equidistant arc guide grooves, the center of the chuck is provided with a hexagonal hole, the upper surface of the chuck is provided with a lower pressure plate and a claw, and the inner side of the arc guide groove of the chuck is provided with a claw. Through the rotation of the chuck on the floating pressure plate and the arc guide groove, the rotation can be easily converted into the translation of the claw, thereby realizing convenient and fast positioning of the claw.

[0010] The floating pressure plate is in the shape of a circular disk, an embedded groove is provided on the upper surface of the floating pressure plate, a through hole is provided in the center of the floating pressure plate, an oblique guide edge is provided on the outer side of the bottom of the floating pressure plate, a chuck is embedded in the inner part of the embedded groove, and the oblique guide edge is connected to the inner side of the locking slider in a close-fitting manner. A fixing groove is provided on one side of the floating pressure plate, and the locking slider is in the shape of a rectangular block, one end of the locking slider is a flat end, and the other end of the locking slider is an inclined surface end. Threaded holes are provided transversely through the inner two ends of the locking slider, and a screw rod is provided inside the threaded hole. Both ends of the screw rod have plum blossom ends on the outer side, and positive threads and negative threads are provided on the inner side of the plum blossom end of the screw rod. The positive threads and negative threads are symmetrically arranged at both ends of the screw rod, and locking sliders are provided on the outer sides of the positive threads and negative threads. Through the cooperation of the screw rod with positive and negative threads and the two locking sliders, the locking slider can be easily translated inward or outward at the same time, and the inclined translation of the locking slider can realize the up and down translation of the floating pressure plate, thereby realizing the locking and fixing of the lower pressure plate driven by the floating pressure plate.

[0011] Beneficial effects:

[0012] Through the chuck under the lower pressure plate, the claws that originally moved in a straight line can be opened and closed in a linkage manner by rotating the chuck, so as to achieve convenient clamping and positioning, and the middle rotation method can also be conveniently operated through the lower pressure plate. The cooperation of the locking slider and the floating pressure plate can quickly move the lower pressure plate up and down through the screw rod, so as to achieve rapid top pressure fixation, thereby ensuring the clamping strength and fixing strength of the workpiece, simple operation and precise positioning.

[0013] The upper pressing plate can be conveniently installed through the rectangular slot with the plug-in groove, and the upper pressing plate can also be ensured to be installed and fixed, and the internal circular blind hole can facilitate the floating pressing plate to move up and down.

[0014] The upper pressing plate with the grabbing groove can be inserted into the base quickly and conveniently, so that the upper pressing plate can be replaced conveniently while the workpiece is replaced.

[0015] The lower pressure plate realizes the stable movement of the clamping claws through the guiding translation groove, and the milling groove can avoid during the milling process, while the fixed groove can play an auxiliary positioning role to prevent the chuck from offsetting when rotating.

[0016] Through the rotation of the chuck on the floating pressure plate and the arc-shaped guide groove, the rotation can be easily converted into the translation of the clamping claw, thereby realizing convenient and fast positioning of the clamping claw.

[0017] Through the cooperation of the screw rod with positive and negative threads and the two locking sliders, the locking slider can be easily translated inward or outward at the same time, and the inclined translation of the locking slider can realize the up and down translation of the floating pressure plate, thereby realizing the locking and fixation of the lower pressure plate driven by the floating pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of a universal tooling for milling openings used in a machining center with a straight three-petal filler type having a gap;

[0019] Figure 2 is a cross-sectional schematic diagram of the base;

[0020] Figure 3 is a top view of the upper platen;

[0021] Figure 4 is a top view of the lower pressure plate;

[0022] Figure 5 is a top view of the chuck;

[0023] Figure 6 This is a top view of the floating scar;

[0024] Figure 7 is a side view of the jaw;

[0025] Figure 8 It is a top view of the stuck;

[0026] Fig. 9 It is the assembly diagram of the screw rod mixed locking slider;

[0027] In the figure; 1, base, 2, upper pressure plate, 3, claw, 4, lower pressure plate, 5, chuck, 6, floating pressure plate, 7, locking slider, 8, screw. DETAILED DESCRIPTION

[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0029] Base 1, upper pressure plate 2, claw 3, lower pressure plate 4, chuck 5, floating pressure plate 6, locking slider 7, screw rod 8.

[0030] like Figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9;

[0031] A universal tooling for milling openings for a straight three-petal filler machining center with a gap, a base 1 is provided on the outside of the tooling, an upper pressure plate 2 and a lower pressure plate 4 are provided inside the base 1, a milling workpiece is provided between the upper pressure plate 2 and the lower pressure plate 4, the shape of the base 1 is a rectangular shell, an upper pressure plate 2 is provided on the inner side of the top surface of the base 1 in a plug-in manner, a lower pressure plate 4 is provided below the upper pressure plate 2, a clamping claw 3 is provided on the inner side of the lower pressure plate 4 in a movably plug-in manner, the bottom surface of the lower pressure plate 4 is fitted and connected with the top surface of a chuck 5 and a floating pressure plate 6, the chuck 5 is embedded in the inner side of the floating pressure plate 6, the top surface of the chuck 5 is flush with the top surface of the floating pressure plate 6, the surface of the chuck 5 is provided with arc guide grooves at equal intervals in an annular manner, a hexagonal hole is provided in the center of the chuck 5, and both sides below the floating pressure plate 6 A locking slider 7 is provided on both sides of the beveled edges, and a screw rod 8 is provided on the inner side of the locking slider 7 in a transverse manner. Slide grooves are provided on both sides of the middle part of the clamping claw 3, a fixing column is provided on the upper end of the clamping claw 3, and a guide column is provided on the lower end of the clamping claw 3. The guide column of the clamping claw 3 is plug-in-type and is arranged on the inner side of the arc-shaped guide groove on the inner side of the chuck 5. The outer contour of the base 1 is rectangular, and a rectangular slot is provided inside the top surface of the base 1. Inserting slots are provided on both sides of the rectangular slot, and a circular blind hole is provided below the rectangular slot. Rectangular guide grooves are provided on both sides of the bottom surface of the circular blind hole, and a lower pressure plate 4, a chuck 5 and a floating pressure plate 6 are provided on the inner side of the circular blind hole. Locking sliders 7 are provided on the inner side of the rectangular guide grooves. The upper pressure plate 2 is in the shape of a rectangular plate, and the upper surface of the upper pressure plate 2 is provided with a There are milling grooves, guide plug-in edges are provided on both sides of the upper pressing plate 2, and a grabbing groove is provided in the middle of one end of the upper pressing plate 2. The guide plug-in edge is arranged on the inner top surface of the base 1 in a plug-in manner. The lower pressing plate 4 is in the shape of a circular disk, and a through hole is provided in the center of the surface of the lower pressing plate 4. The surface of the lower pressing plate 4 is provided with guide translation grooves in annular equidistant manner, and milling grooves are provided between the guide translation grooves. The inner side of the guide translation groove is plug-in-type with a claw 3, and the position of the milling groove of the lower pressing plate 4 is the same as that of the milling groove of the upper pressing plate 2. A fixed groove is provided on one side of the lower pressing plate 4, and the chuck 5 is in the shape of a circular disk. The surface of the chuck 5 is provided with arc guide grooves in annular equidistant manner, and the center of the chuck 5 is provided with a hexagonal hole, and the upper surface of the chuck 5 is provided with a lower pressing plate 4 and a claw 3. A claw 3 is provided on the inner side of the arc guide groove 5, the floating pressure plate 6 is in the shape of a circular disk, an embedded groove is provided on the upper surface of the floating pressure plate 6, a through hole is provided in the center of the floating pressure plate 6, an oblique guide edge is provided on the outer side of the bottom of the floating pressure plate 6, a chuck 5 is embedded in the inner side of the embedded groove, and the oblique guide edge is connected to the inner side of the locking slider 7 in a close-fitting manner, the locking slider 7 is in the shape of a rectangular block, one end of the locking slider 7 is a plane end, and the other end of the locking slider 7 is a bevel end, and threaded holes are provided transversely through the inner ends of the locking slider 7, a screw rod 8 is provided inside the threaded hole, and the outer sides of the two ends of the screw rod 8 are plum blossom ends, and the inner side of the plum blossom end of the screw rod 8 is provided with positive threads and negative threads, and the positive threads and negative threads are symmetrically arranged at the two ends of the screw rod 8.The outer sides of the positive thread and the negative thread are both provided with locking sliders 7.

[0032] Implementation examples;

[0033] Place the workpiece flat on the lower pressure plate 4, use the hexagonal wrench to rotate the chuck 5 clockwise or counterclockwise to drive the claws 3 to move radially on the lower pressure plate 4 to expand or shrink. When the three claws 3 all contact the inner diameter or outer diameter of the workpiece, the center of the workpiece coincides with the center of the tooling to achieve the purpose of positioning the workpiece.

[0034] Use a plum wrench to rotate the two ends of the locking screw to drive the two locking sliders to move toward each other so that the inclined surface that fits with the floating pressure plate pushes the floating pressure plate upward and drives the chuck, the lower pressure plate and the workpiece to move upward so that the top of the workpiece fits with the upper pressure plate to achieve the purpose of clamping the workpiece.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal tooling for milling openings used in a straight three-petal filler type machining center with a gap, a base is arranged on the outside of the tooling, an upper pressing plate and a lower pressing plate are arranged inside the base, and a milling workpiece is arranged between the upper pressing plate and the lower pressing plate, characterized in that: The base is in the shape of a rectangular shell, and an upper pressure plate is plug-inly provided on the inner side of the top surface of the base, and a lower pressure plate is provided under the upper pressure plate, and a claw is movably plug-inly provided on the inner side of the lower pressure plate, and the bottom surface of the lower pressure plate is fitted and connected with the top surface of the chuck and the floating pressure plate, the chuck is embedded in the inner side of the floating pressure plate, and the top surface of the chuck is flush with the top surface of the floating pressure plate, and the surface of the chuck is annularly equidistantly provided with arc guide grooves, and a hexagonal hole is provided in the center of the chuck, and locking sliders are provided on both sides of the lower side of the floating pressure plate, and a screw rod is provided transversely through the inner side of the locking slider, and sliding grooves are provided on both sides of the middle part of the claw, a fixing column is provided at the upper end of the claw, and a guide column is provided at the lower end of the claw, and the guide column of the claw is plug-in-type and arranged on the inner side of the arc guide groove inside the chuck.

2. The universal tooling for milling opening of a straight three-petal filler type machining center with a gap according to claim 1 is characterized in that: The outer contour of the base is rectangular, a rectangular slot is provided inside the top surface of the base, plug-in slots are provided on both sides of the rectangular slot, a circular blind hole is provided below the rectangular slot, rectangular guide grooves are provided through both sides of the bottom surface of the circular blind hole, a lower pressure plate, a chuck and a floating pressure plate are provided on the inner side of the circular blind hole, and a locking slider is provided on the inner side of the rectangular guide groove.

3. The universal tooling for milling opening for a straight three-petal filler type machining center with gap according to claim 1 is characterized in that: The upper pressing plate is in the shape of a rectangular plate, with a milling groove on its upper surface, guide plug-in edges on both sides of the upper pressing plate, a grabbing groove in the middle of one end of the upper pressing plate, and the guide plug-in edge is arranged on the inner top surface of the base in a plug-in manner.

4. The universal tooling for milling opening for a straight three-petal filler type machining center with clearance according to claim 1 is characterized in that: The lower pressure plate is shaped as a circular disk, a through hole is provided in the center of the surface of the lower pressure plate, guide translation grooves are provided in an annular manner and equidistantly on the surface of the lower pressure plate, milling grooves are provided between the guide translation grooves, and claws are provided on the inner side of the guide translation grooves in a plug-in manner. The position of the milling groove of the lower pressure plate is the same as that of the milling groove of the upper pressure plate, and a fixing groove is provided on one side of the lower pressure plate.

5. The universal tooling for milling opening for a straight three-petal filler type machining center with clearance according to claim 1 is characterized in that: The chuck is in the shape of a circular disk, with circular arc guide grooves equidistantly arranged on the surface of the chuck, a hexagonal hole penetrating the center of the chuck, a lower pressure plate and claws arranged on the upper surface of the chuck, and claws arranged on the inner side of the arc guide groove of the chuck.

6. The universal tooling for milling opening for a straight three-petal filler type machining center with clearance according to claim 1 is characterized in that: The floating pressure plate is shaped as a circular disk, an embedded groove is provided on the upper surface of the floating pressure plate, a through hole is provided in the center of the floating pressure plate, an inclined guide edge is provided on the outer side of the bottom of the floating pressure plate, a chuck is embedded in the embedded groove, the inclined guide edge is fitted and connected to the inner side of the locking slider, and a fixing groove is provided on one side of the floating pressure plate.

7. The universal tooling for milling opening for a straight three-petal filler type machining center with clearance according to claim 1 is characterized in that: The locking slider is in the shape of a rectangular block, one end of the locking slider is a flat end, the other end of the locking slider is a bevel end, and threaded holes are provided transversely through the inner ends of the locking slider, and a screw rod is provided inside the threaded hole.

8. The universal tooling for milling opening for a straight three-petal filler type machining center with clearance according to claim 1 is characterized in that: The outer sides of both ends of the screw rod are plum blossom ends, and the inner sides of the plum blossom ends of the screw rod are provided with positive threads and negative threads. The positive threads and negative threads are symmetrically arranged at both ends of the screw rod, and the outer sides of the positive threads and negative threads are provided with locking sliders.

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