Positioning tool for machining special-shaped opening sleeve

Abstract

The utility model relates to a positioning tool for machining a special-shaped opening sleeve. The positioning tool is characterized in that a tool body comprises a supporting flat plate and a plurality of tool positioning pieces; a plurality of workpiece mounting positions are uniformly distributed on each workpiece positioning piece, and rectangular grooves and tool passing holes are formed in the left side and the right side of each workpiece mounting position; workpiece flanging positioning grooves are formed in the left side, the upper part and the lower part of the periphery of the tool passing hole; the left workpiece flanging positioning groove extends into the rectangular groove; positioning pins are inserted into three positioning pin holes formed in the rectangular groove and are in positioning contact with the upper part, the lower part and the end part of the bent edge of the workpiece on the corresponding side; a right-angle positioning convex surface is arranged on the right side of the periphery of the cutter The tool positioning pieces are fixed to the front face of the supporting flat plate in the vertical direction. The machine tool butt joint base comprises two disc-shaped end plates and two connecting blocks. Two ends of the supporting flat plate are respectively contacted with the inner end surfaces of the two disc-shaped end plates, and the back surface is contacted and fixedly connected with the front surfaces of the two connecting blocks; and the tool main body is fixedly connected with a working table of a four-axis machine tool. According to the tool, the machining efficiency and the machining precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to part processing technical field especially, it relates to a kind of positioning tool for special-shaped opening sleeve processing. BACKGROUND

[0002] Special-shaped support ball sleeve is a special type of special-shaped opening sleeve, and has the following structural characteristics: the middle part is a ring body, the ring body has a connecting part on one side, a slot is arranged in the connecting part corresponding to the radial direction of the center hole, a via hole is arranged on one side of the slot, a threaded hole is arranged on the other side of the slot, forming a locking part of the special-shaped ball sleeve, three bent edge parts are connected to the edge part of the ring body, the three bent edge parts are arranged at 90° angles in sequence, one of the bent edge parts is arranged opposite to the slot part, and the other two bent edge parts are arranged opposite to each other.

[0003] The existing special-shaped support ball sleeve processing requires a reserved process handle, which is removed after all size processing is completed, or a general tool is used for compression positioning, and another tool is replaced for continuous processing after a series of sizes are processed.

[0004] The existing mechanical processing clamp has the following disadvantages: the process handle is waste and cannot be reworked after being formed, the general tool processing consistency is not strong, and multiple clamping will affect the precision. Therefore, a continuous processing tool for special-shaped support ball sleeve and a using method are needed to improve the processing efficiency and precision. UTILITY MODEL CONTENTS

[0005] The utility model proposes a positioning tool for special-shaped opening sleeve processing in view of the deficiencies of the prior art.

[0006] The above-mentioned purposes of the utility model are realized by the following technical solutions:

[0007] A positioning tool for special-shaped opening sleeve processing, characterized by comprising a machine tool butt joint seat, a tool main body, and a positioning pin.

[0008] The tooling main body comprises a support flat plate and a plurality of tooling positioning members; each tooling positioning member is in the shape of a block, and a workpiece mounting position is uniformly arranged on each tooling positioning member along the long edge direction; a rectangular groove and a through-hole are arranged on the left and right of each workpiece mounting position; the diameter of the through-hole is larger than that of the center hole of the workpiece; a workpiece bent edge positioning groove is arranged on the left side, upper part and lower part of the periphery of the through-hole; the width of the workpiece bent edge positioning groove matches the width of the workpiece bent edge; the bottom surface of the workpiece bent edge positioning groove is in the shape of an arc and matches the arc surface shape of the workpiece bent edge; the workpiece bent edge positioning groove on the left side extends into the rectangular groove on the left side; three positioning pins are arranged on the extension line of the workpiece bent edge positioning groove in the rectangular groove; the three positioning pin holes are arranged in a triangular shape; the three positioning pins are inserted into the three positioning pin holes; the three positioning pins form positioning contact with the upper part, lower part and end part of the corresponding side bent edge of the workpiece; a right-angle positioning convex surface for lower and right limiting of the connecting part of the workpiece is arranged on the right side of the periphery of the through-hole.

[0009] The plurality of tooling positioning members are fixed to the front surface of the support flat plate in a two-end alignment manner through screws.

[0010] The machine tool butt joint base comprises two disc-shaped end plates and two connecting blocks; cross-shaped positioning grooves are arranged on the outer side surfaces of the two disc-shaped end plates; pin holes and screw through holes are arranged at the bottoms of the positioning grooves; the two connecting blocks are arranged on the inner side surfaces of the two disc-shaped end plates and are fixedly connected with the corresponding disc-shaped end plates through screws.

[0011] The two ends of the support flat plate of the tooling main body are in contact with the inner end surfaces of the two disc-shaped end plates; the back surface of the support flat plate is in contact with the front surfaces of the two connecting blocks; the support flat plate is connected with the two connecting blocks through screws, so that the tooling main body is stably fixed on the machine tool butt joint base; and the tooling main body is fixedly connected with the worktable surface of the four-axis machine tool.

[0012] Moreover, a plurality of rows of positioning holes are arranged on the support flat plate; corresponding pin holes are arranged on each workpiece mounting position of the tooling positioning members; the pin holes are coaxially arranged with the corresponding through-holes; and positioning pins are inserted into the pin holes and the corresponding positioning holes, so that the tooling positioning members are in positioning cooperation with the support flat plate.

[0013] Moreover, the workpiece mounting positions on the two tooling positioning members are sequentially staggered and reversely arranged.

[0014] The machining tooling has the advantages and positive effects that:

[0015] (1) The machining tooling positioning groove size corresponds to the design of the special-shaped opening sleeve workpiece, is easy to place, has a larger contact area during fixing, can ensure the stability of clamping and improve the machining quality.

[0016] (2) The tooling of the utility model can realize continuous processing of multiple pieces after the first piece is processed and confirmed to be qualified, and the process of repeated positioning and adjustment is saved, thereby greatly improving the processing efficiency.

[0017] (3) The tooling can complete the processing of the center threaded hole of the special-shaped opening sleeve workpiece, the end face of the middle ring body part of the workpiece and the end face of the workpiece connecting part at one time, has good forming precision and strong processing consistency.

[0018] (4) The tooling can adapt to the needs of small and medium batch production of the same type of parts, and can be popularized to the production and processing of related parts.

[0019] of the related art. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structural schematic view of a workpiece suitable for the tooling of the utility model; 1a, front view; 1b, top view;

[0021] Fig. 2 is a use state reference view of the tooling of the utility model; 2a, front view; 2b, perspective view;

[0022] Fig. 3 is a structural schematic view of a tooling positioning piece in the tooling of the utility model. DETAILED DESCRIPTION

[0023] The structure of the utility model will be further described below in combination with the drawings and through examples. It should be noted that the examples are narrative rather than limiting.

[0024] A positioning tooling for special-shaped opening sleeve processing, please see Fig. 1-3, the invention point is: the positioning tooling mainly includes a machine tool butt joint seat 1, a tooling main body 2, a positioning pin 3.

[0025] The tooling main body includes a support flat plate 2.1 and a plurality of tooling positioning pieces 2.2. The support flat plate is used to provide a mounting surface of the workpiece positioning piece. The front surface of the support flat plate is used to mount the workpiece positioning piece. Each tooling positioning piece is in the form of a strip block, and a workpiece mounting position is uniformly arranged on each tooling positioning piece along the long edge direction, and each workpiece mounting position can position and mount one workpiece. A rectangular groove 2.1.1 and a tooling hole 2.1.4 are arranged at the left and right of each workpiece mounting position, and the diameter of the tooling hole is greater than the diameter of the center hole of the workpiece. A workpiece bent edge positioning groove 2.1.2 is arranged on the left side, upper part and lower part of the periphery of the tooling hole, the width of the workpiece bent edge positioning groove matches the width of the workpiece bent edge, the bottom surface of the workpiece bent edge positioning groove is in the form of an arc, and is matched with the arc-shaped surface of the workpiece bent edge.

[0026] The arc surface shape of the workpiece flange is matched to realize the insertion positioning of the three flanges of the workpiece, wherein the left workpiece flange positioning groove extends into the left rectangular groove. Three positioning pins are arranged in the rectangular groove on the extension line of the workpiece flange positioning groove, and three positioning pin holes are arranged in a triangular shape. The positioning pins are inserted into the three positioning pin holes to form positioning contact with the upper part, lower part and end part of the corresponding side flange on the workpiece. A right-angle positioning convex surface 2.1.5 is arranged on the outer periphery of the knife hole on the right side to realize the lower and right limiting of the connecting part, cooperate with the limiting of the three positioning pins, and realize the left and right, upper and lower limiting and fixing of the workpiece.

[0027] A plurality of tool positioning members are fixed to the front surface of the support plate in a two-end alignment manner through screws, which can realize one-time clamping of a plurality of workpieces 4. To realize the positioning of the tool positioning member and the support plate, a plurality of positioning holes are arranged on the support plate, and a corresponding pin hole 2.1.3 is arranged at each workpiece mounting position of the tool positioning member. The pin hole is coaxially arranged with the corresponding knife hole. By inserting a positioning pin into the pin hole and the corresponding positioning hole, the positioning of the tool positioning member and the support plate is realized. Further, the workpiece mounting positions on the upper and lower tool positioning members are arranged in a staggered and reverse manner.

[0028] The machine tool butt joint seat includes two disc-shaped end plates 1.1 and two connecting blocks 1.2. Cross-shaped positioning grooves 1.1.1 are arranged on the outer sides of the two disc-shaped end plates. Pin holes and screw through holes are arranged at the bottoms of the positioning grooves to realize the connection of the corresponding ends of the support plate and the machine tool butt joint seat through positioning pins and screws. The cross-shaped positioning grooves facilitate the positioning of the machine tool butt joint seat and the cross T-shaped table surface of the four-axis machine tool. The two connecting blocks are arranged on the inner sides of the two disc-shaped end plates and are fixedly connected with the corresponding disc-shaped end plates through screws. The two connecting blocks are used to realize the fixed connection of the support plate and the machine tool butt joint member.

[0029] The two ends of the support plate of the tool main body are in contact with the inner end surfaces of the two disc-shaped end plates, the back surface of the support plate is in contact with the front surfaces of the two connecting blocks, and the support plate is connected with the two connecting blocks through screws to realize the stable fixing of the tool main body on the machine tool butt joint seat.

[0030] The tool main body is fixedly connected with the working table surface of the four-axis machine tool. Specifically, the connecting block 1.2 is connected with the four-axis machine tool working table T-shaped groove through the disc-shaped end plate 1.1 and the T-shaped nut and bolt.

[0031] The method for machining the workpiece on the four-axis machine tool by using the positioning tool for machining the special-shaped opening sleeve is as follows:

[0032] 1. This tool uses four coordinate systems A0 G54, G55; A90 G56, X and G54 same Y after milling measurement workpiece; A270 G57, X and G55 same Y after milling measurement parts. G54, 55 tooling, Z0 in the top surface of the tool. G56 coordinate Y0 in the workpiece processing surface. G57 coordinate Y0 in the workpiece processing surface. Workpiece coordinate system after the derivation can be based on the tooling of the tooling program to install the tool for processing. Tool setting test processing does not need to reduce the tool setting rod.

[0033] 2. The first piece of processing is completed and confirmed qualified, can enter the continuous processing stage, each time the workpiece is confirmed clean, the tooling surface is cleaned, the workpiece is clamped in place. The workbench can not put any articles, prevent four-axis rotation collision.

[0034] Using this positioning tool, when processing the workpiece, a gasket consistent with the width of the slot needs to be inserted in the slot on the connecting part of the workpiece. When the axial direction of the center hole of the workpiece and the Z axis is at a 90 ° angle, the center threaded hole of the workpiece and the end face of the middle ring body part of the workpiece can be machined, that is, ⑥ and ① in the drawing; when the positioning tool is rotated to the axial direction of the center hole of the workpiece and the Z axis is at a 0 ° angle, the end face of the connecting part of the workpiece can be machined, that is, ④ in the drawing.

[0035]

[0036] Although the embodiments and drawings of the present application are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit of the present application and the appended claims, therefore, the scope of the present application is not limited to the content disclosed in the embodiments and drawings.​

Claims

1. A positioning tool for processing a profiled opening sleeve, characterized in that: The machine tool docking seat, the tooling main body, and the positioning pin are included. The tooling main body includes a support flat plate and multiple tooling positioning members. Each tooling positioning member is in the shape of a block, and multiple workpiece mounting positions are uniformly arranged on each tooling positioning member along the long edge direction. Rectangular grooves and knife-passing holes are arranged on the left and right sides of each workpiece mounting position. The diameter of the knife-passing hole is larger than that of the center hole of the workpiece. Workpiece bent edge positioning grooves are arranged on the left side, upper part, and lower part of the periphery of the knife-passing hole. The width of the workpiece bent edge positioning groove matches the width of the workpiece bent edge. The bottom surface of the workpiece bent edge positioning groove is in the shape of an arc and matches the arc surface shape of the workpiece bent edge. The workpiece bent edge positioning groove on the left side extends into the rectangular groove on the left side. Three positioning pins are arranged on the extension line of the workpiece bent edge positioning groove in the rectangular groove. Three positioning pin holes are arranged in the shape of a triangle, and three positioning pins are inserted into the three positioning pin holes. The three positioning pins form positioning contact with the upper part, lower part, and end part of the corresponding side bent edge of the workpiece. A right-angle positioning convex surface for lower and right limiting of the connecting part of the workpiece is arranged on the right side of the periphery of the knife-passing hole. The multiple tooling positioning members are fixed to the front surface of the support flat plate in an alignment manner at both ends through screws. The machine tool docking seat includes two disc-shaped end plates and two connecting blocks. Cross-shaped positioning grooves are arranged on the outer side surfaces of the two disc-shaped end plates. Pin holes and screw through holes are arranged at the bottom of the positioning grooves. The two connecting blocks are arranged on the inner side surfaces of the two disc-shaped end plates and are fixedly connected to the corresponding disc-shaped end plates through screws. The two ends of the support flat plate of the tooling main body are in contact with the inner end surfaces of the two disc-shaped end plates. The back surface of the support flat plate is in contact with the front surfaces of the two connecting blocks. The support flat plate is connected to the two connecting blocks through screws, so that the tooling main body is stably fixed on the machine tool docking seat. The tooling main body is fixedly connected to the workbench surface of the four-axis machine tool.

2. The positioning tool for processing the profiled opening sleeve according to claim 1, characterized in that: Multiple rows of positioning holes are arranged on the support flat plate. Corresponding pin holes are arranged on each workpiece mounting position of the tooling positioning member. The pin holes are coaxially arranged with the corresponding knife-passing holes. Positioning pins are inserted into the pin holes and the corresponding positioning holes, so that the tooling positioning member is in positioning cooperation with the support flat plate.

3. The positioning tool for processing the profiled opening sleeve according to claim 1, characterized in that: The workpiece mounting positions on the upper and lower tooling positioning members are arranged in a staggered and reverse manner.

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