CN2248110Y - Processing device for chain-linking ring with curved teeth for ring chain - Google Patents

Abstract

The utility model relates to a processing device for an arc-shaped engaged chain ring of a circular ring chain. The utility model is composed of a machine tool, a special cutter and a special clamp, wherein a cutter frame of the special cutter has a basin-shaped structure and a conical flask structure; a cutter holder is arrangd in the central position at the bottom of a cutter body; a cutter head is arranged on the circular edge of the cutter frame; the special clamp which is composed of a plate-shaped clamp body, a positioning pin (block) and a spiral pressing plate mechanism is arranged on a worktable of the machine tool; the central line of the special clamp forms an alpha angle with a main shaft of the machine tool; the value of the alpha angle is 15 DEG to 25 DEG. The utility model has the advantages of simple structure and easy operation; the machine tool can be a comman machine tool, a horizontal miller, a special machine tool or a numerically-controlled machine tool. The utility model can be used for processing arc-shaped engaged chain rings in various forms.

Description

Round-link chain arc toe joint chain link processing unit (plant)

The utility model relates to the machinery processing apparatus of round-link chain arc toe joint chain link.

Round-link chain belongs to a kind of of power chain, is widely used in industrial power transmission, particularly mining area.The round-link chain chain ring is in the round-link chain transmission, dismountable coupling components between the round-link chain.Because it is round-link chain has higher intensity, therefore, high to the reliability requirement of the intensity of its coupling components chain ring and connection.Different itself structure with the round-link chain connecting mode of existing chain ring are also different, primary structure has straight-tooth and circle-arc tooth, because the circle-arc tooth difficulty of processing is big, the straight-tooth structures that adopt more, and adopt the chain ring functional reliability of straight-tooth structure relatively poor, Chang Yinqi damages and influence production, even causes the accident sometimes.

The main feature of arc toe joint chain link is the intensity height, connects reliably, and this is determined by itself structure.The concrete structure shape of arc toe joint chain link as shown in Figure 5.It is made up of the semi-ring of the identical band arc tooth of a pair of shape.On semi-ring, its coupling part is made up of outer arcuate tooth and arc tooth.The tooth top of outer arcuate tooth and tooth root are accurate external cylindrical surfaces, and the outer arcuate tooth is protruding exterior arc surface in court with the side that round-link chain joins.On the tooth depth direction two sections isometric tangent convex-concave circular arcs that wait radius.Its flank profil opposite side is a plane.The tooth top of arc tooth is the accurate inner cylinder face that equates with the outer arc tooth diameter with tooth root, the arc tooth is being recessed inner arc surface towards a side of joining with round-link chain, be the isometric tangent protruding external arc of radius that waits that equates with the outer arcuate tooth on the tooth depth direction, its flank profil opposite side is a plane.Because arc toe joint chain link complex structure, be difficult to processing, therefore, employing less.

The purpose of this utility model is to overcome existing arc toe joint chain link processing and goes up the problems referred to above that exist, and a kind of processing unit (plant) of easy-operating round-link chain arc toe joint chain link simple in structure is provided.

Above-mentioned purpose can solve by the following technical programs.This device mainly is made up of lathe, dedicated tool and anchor clamps three parts, and lathe can adopt general lathe, also can adopt special use or Digit Control Machine Tool.The designed dedicated tool of this device is by cutter head, knife rest and handle of a knife three parts constitute, knife rest is basin shape and conical flask structure, handle of a knife is contained at the bottom of the basin of knife rest and center at the bottom of the conical flask, cutter head is contained in the periphery place of basin shape knife rest and conical flask knife rest, and the handle of a knife of cutter is contained on the main shaft of lathe, and special fixture is contained on the platen, the special fixture center line is not parallel with spindle centerline and to become α angle, α angle span be between 15 °～25 °.

Because workpiece to be machined arc toe joint chain link is outer arcuate tooth and arc tooth, the cutter head that is contained on basin shape knife rest and the conical flask knife rest can adopt one or many.When processing outer arcuate tooth, adopt bathtub construction, cutter tooth is inwardly installed, and when processing arc tooth, adopts the conical flask structure, and toe of the skate pointing outward is installed.

Because workpiece to be machined is a semi-loop, process outer arcuate tooth and arc tooth on it, design feature and processing needs according to workpiece, special fixture can be by tabular clamp body and spiral press plate mechanism and alignment pin (piece) formation, workpiece to be machined is located by alignment pin (piece) and clamp body, and is fixed on the clamp body with the spiral press plate mechanism.

Further specify its concrete structure and the course of work below in conjunction with accompanying drawing.Fig. 1 is the structural representation of processing outer arcuate tooth dedicated tool, and the cutter tooth of cutter head 1 is used for the outer arcuate tooth of processing work inwardly; The special fixture of Fig. 2 for matching with Fig. 1 cutter structure, the chain-dotted line on it is the installation site of workpiece 7; Fig. 3 is the structural representation of processing arc tooth dedicated tool, and the cutter tooth of cutter head is used for the arc tooth of processing work outwardly; The special fixture of Fig. 4 for matching with Fig. 3 cutter structure, the chain-dotted line on it is the installation site of workpiece 7; Fig. 5 is the shape schematic diagram of workpiece to be machined 7.For the interior outer arcuate tooth on the semi-ring of finishing the processing chain ring, the utility model has designed the cutter and the anchor clamps of outer arcuate tooth in the processing respectively, and the method that adopts similar whirlwind to mill is carried out, the handle of a knife 3 of cutter is contained on the main shaft of lathe, makes the center cutter line coaxial with the spindle centerline of lathe.The blank of workpiece 7 is contained on the clamp body 4, with alignment pin (piece) 6 and clamp body 4 location, clamps with spiral press plate mechanism 5 again.Anchor clamps are fixed on the workbench of lathe then, and make anchor clamps center line and machine tool chief axis center line turn over the α angle, its span can be between 15 °～25 °.When installing, the starting lathe makes machine tool chief axis drive cutter and does gyration, platen can with spindle centerline vertical direction and not parallel direction on process do feed motion respectively

For the outer arcuate tooth on workpiece 7 semi-rings, basin shape knife rest 2 cutter structures (as shown in Figure 1) and corresponding anchor clamps (as shown in Figure 2) that this device can adopt cutter tooth to install inwardly can process the outer arcuate tooth.

For the arc tooth on the processing work semi-ring.This device can adopt the knife rest 2 ' cutter structure (as shown in Figure 3) and the concrete anchor clamps (as shown in Figure 4) of corresponding palm clevis of the conical flask formula that cutter tooth installs outwardly, can process the arc tooth.

This device has simple in structure, and maneuverable characteristics can realize the processing of the interior outer arcuate tooth of chain ring easily.Its lathe can be common horizontal milling machine, also can remove the engine lathe of former chuck and knife rest, also can adopt special purpose machine tool or Digit Control Machine Tool to finish processing.

Description of drawings: Fig. 1 is the ligulate special fixture of the cutter tooth basin shape dedicated tool structural representation inwardly of cutter head: Fig. 2 for matching with Fig. 1 cutter structure, and the chain-dotted line on it is the installation site of workpiece; Fig. 3 is the structural representation of conical flask formula dedicated tool of the toe of the skate pointing outward of cutter head; The palm shape special fixture of Fig. 4 for matching with Fig. 3 cutter structure, chain-dotted line is the installation site of workpiece on it; Fig. 5 is the shape schematic diagram of workpiece to be machined.Dedicated tool shown in Figure 1 and special fixture shown in Figure 2 are used for the outer arcuate tooth of processing work, and dedicated tool shown in Figure 3 and special fixture shown in Figure 4 are used for the arc tooth of processing work.

The preferred forms of this programme is: can adopt 2 or 4 on two kinds of cutter cutter heads, being installed on the periphery of basin shape knife rest and conical flask knife rest with symmetry is the best.The cutter tooth material selection of cutter head high-speed steel or carbide alloy be advisable.Anchor clamps be installed on the platen with and the α angle that become with spindle centerline of its center line choose about 20 °, the face of cylinder that is processed or arc surface make the structural strength of workpiece higher, connection more reliable.The operation of processing can be processed the outer arcuate tooth earlier, reprocessing arc tooth.Selected lathe is common horizontal milling machine, also can adopt engine lathe, but knife rest on the former lathe and chuck will be dismantled.Certainly also can adopt special equipment and Digit Control Machine Tool.Do gyration as long as handle machine tool chief axis, make simultaneously workbench with spindle centerline vertical direction and not parallel direction on do feed motion respectively, and the control amount of feeding both can process the arc toe joint chain link of desired different size.

Claims (3)

1. round-link chain arc toe joint chain link processing unit (plant), mainly be by lathe, dedicated tool and special fixture three parts are formed, it is characterized in that said dedicated tool is by cutter head, knife rest and handle of a knife constitute, knife rest is respectively basin shape and conical flask structure, handle of a knife is contained in the bottom centre place of basin shape knife rest and conical flask knife rest, cutter head is contained in the periphery place of basin shape knife rest and conical flask knife rest, the handle of a knife of cutter is contained on the main shaft of lathe, special fixture is fixedly mounted on the platen, the special fixture center line becomes the α angle with the machine tool chief axis center line, and the span at α angle is 15 °～25 °.

2. round-link chain arc toe joint chain link processing unit (plant) according to claim 1 is characterized in that said cutter head can be one or many, and the cutter tooth of cutter head is inwardly installed on the basin shape knife rest, and the toe of the skate pointing outward of the cutter head on the conical flask knife rest is installed.

3. round-link chain arc toe joint chain link processing unit (plant) according to claim 1 and 2, it is characterized in that said special fixture is by tabular clamp body and spiral press plate mechanism and alignment pin (piece) formation, workpiece to be machined is located by alignment pin (piece) and clamp body, and presses utmost point mechanism to be fixed on the clamp body with spiral.

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