CN218697860U - Frock clamp of alignment medium, small-bore punching press casing wall thickness difference - Google Patents

Abstract

The utility model discloses a frock clamp of alignment in, small-bore punching press casing wall thickness difference, including pull rod, joint, clamp cover, collet chuck, core bar, position circle, press from both sides the cover and connect fixed connection, the collet chuck cover is established on the clamp cover, the one end of core bar pass the joint stretch into press from both sides in the cover and with collet chuck fixed connection, the other end of core bar even establishes the pull rod, the tip of keeping away from the joint at the clamp cover sets up the position circle. The utility model discloses anchor clamps have solved the difficult problem that the body class work piece that revolves location is difficult, difficult clamp tightly and the clamping frock commonality is poor, can realize the processing of the stick clamping of well, small-bore, dark, long size combat portion, but the combat portion kind of clamping increases substantially, has improved machining efficiency and yield, and allotment is simple, low cost.

Description

Frock clamp of alignment medium, small-bore punching press casing wall thickness difference

Technical Field

The utility model relates to an anchor clamps, concretely relates to frock clamp of alignment in, small-bore punching press casing wall thickness difference is a combination tool of the processing of centering, the great blind hole punching press casing class warhead casing appearance of small-bore length-diameter ratio.

Background

At present, the blanks of the middle and small caliber warhead shell are stamping blanks, and the coaxiality of an inner circle and an outer circle is larger. The large length-diameter ratio of the inner hole of the shell blank is a blind hole, so that the processing is difficult, and the coaxiality must be transferred to an excircle. The outer circle is processed by taking the inner hole as a reference during processing, the shell blank is easy to incline when the shell is clamped by a universal clamp, the clamping precision is unstable, the processing process is difficult, and the quality consistency is poor.

Disclosure of Invention

The utility model aims to solve the technical problem that to in the current, the great blind hole class punching press warhead casing blank of small-bore length-diameter ratio is at the clamping problem of appearance course of working, provide a find the centre, the frock clamp of small-bore punching press casing wall thickness difference, utilize this frock clamp to solve the unable problem that fixes a position, the clamping precision is low, influence product quality such as unstability of work piece blank that exists in the universal fixturing.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a tool clamp for aligning the wall thickness difference of a middle-small-caliber stamping shell comprises a pull rod, a connector, a jacket, a spring chuck, a core rod and a positioning ring, wherein the jacket is fixedly connected with the connector, the spring chuck is sleeved on the jacket, one end of the core rod penetrates through the connector and extends into the jacket and is fixedly connected with the spring chuck, the other end of the core rod is connected with the pull rod, and the positioning ring is arranged at the end part, far away from the connector, of the jacket.

The clamping sleeve and the joint are fixedly connected together through a key, a nut and a pressing cap are sequentially arranged at the connecting end of the clamping sleeve and the joint, and the clamping sleeve can be fixed in place through the nut and the pressing cap.

The spring chuck is fixedly connected with the core rod through a pull pin, and a spring ring is sleeved on the spring chuck and can fasten the pull pin.

The joint is provided with a plurality of bolt holes connected with a machine tool.

The utility model adopts the above technical scheme a frock clamp of alignment in, small-bore punching press casing wall thickness difference, have following beneficial effect:

1. the positioning ring, the spring chuck and the like are utilized to stabilize the workpiece, so that the problems that the workpiece of the revolution body is difficult to position and clamp are solved;

2. the proper spring chuck, positioning ring, jacket and core rod are selected according to the caliber, length and the like of the workpiece, so that single piece clamping processing of the medium-caliber, small-caliber and deep-long-size warhead can be realized, and the types of the mountable warhead are greatly improved;

3. the difficult problem of poor universality of clamping tools in the prior art can be solved by simply replacing the spring chuck, the jacket, the core bar and the positioning ring, and the clamping tools are simple to allocate and low in cost;

4. after clamping, the circumference of the warhead is suspended, and the warhead is not contacted with foreign objects in a large area, so that the processing efficiency of the workpieces is further improved, and the problems of low yield, difficult processing and the like in the processing process of the workpieces are reduced;

5. the spring chuck, the locating ring and the like are subjected to heat treatment, so that the hardness is high, the deformation is small, even if small collision occurs, the small problems such as gouges and the like are caused, the repair is simple, the reusability of the tool is good, and the service life is long.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1-pull rod, 2-nut, 3-press cap, 4-jacket, 5-spring chuck, 6-spring ring, 7-positioning ring, 8-pull pin, 9-core rod, 10-key and 11-joint.

Detailed Description

The following description will specifically describe a tooling fixture for aligning the thickness difference of the middle and small-caliber stamping housing walls according to the present invention with reference to the accompanying drawings.

The utility model relates to a work fixture of alignment, small-bore punching press casing wall thickness difference, refer to figure 1, including pull rod 1, nut 2, press cap 3, press from both sides cover 4, collet chuck 5, spring coil 6, position circle 7, draw round pin 8, core bar 9, key 10, connect 11, press from both sides cover 4 and connect 11 within a definite time through key 10 fixed connection together, establish nut 2 and pressure cap 3 with the link that connects 11 in proper order on pressing from both sides cover 4, nut 2 can fix pressing from both sides the cover and connecting and targetting in place with pressing cap 3. The spring chuck 5 is sleeved on the jacket 4, one end of the core rod 9 penetrates through the joint 11 and extends into the jacket 4, the end of the core rod 9 is fixedly connected with the spring chuck 5 through the pull pin 8, the spring ring 6 is sleeved on the spring chuck 5, and the pull pin 8 can be fastened by the spring ring 6. The pull rod 1 is connected with the other end of the core rod 9, the pull rod 1 is connected with a machine tool cylinder (or a hydraulic cylinder) as an extension rod, and the cylinder (or the hydraulic cylinder) drives the pull rod 1 to move to realize the movement of the core rod 9 in the jacket 4, so that the chuck of the collet chuck 5 is opened and closed. A position ring 7 is arranged at the end of the jacket 4 far away from the joint 11. The joint 11 is provided with a plurality of bolt holes, and the joint 11 can be connected to a machine tool by bolts in the bolt holes.

The utility model discloses the flexible purpose that reaches the tight work piece of clamp of collet chuck 5 is controlled to the back-and-forth movement of accessible pull rod 1, and the front end is equipped with the axial position and the radial alignment that position circle 7 were used for controlling the work piece simultaneously, and the during operation, a whole set of frock passes through 7 location, alignments of position circle, guarantees the clamping stability of work piece through the back-and-forth movement of collet chuck 5.

When the positioning ring is used, the position sizes of the positioning ring 7, the collet chuck 5, the jacket 4 and the core rod 9 are determined according to the inner diameter size of the shell, and the specific sizes of the positioning ring 7 and the collet chuck 5 are calculated; then after the position size and the actual part size are determined, the jacket 4 is firstly installed with the key 10, the whole body is connected with the joint 11 after the position size and the actual part size are determined, the jacket is fixed in place by the nut 2 and the pressing cap 3, then the pull rod 1, the core rod 9, the spring chuck 5, the pull pin 8 and the spring ring 6 are sequentially installed in place, the right end of the pull rod 1 is provided with the positioning ring 7, and the pull rod is screwed by a proper nut to prevent loosening; and finally, after the tool is installed, the whole set of tool is installed on a main shaft of a machine tool, the pull rod 1 is connected to a cylinder (or a hydraulic cylinder) of the machine tool, deviation adjustment is carried out on the pull rod, then a workpiece is sleeved on a clamp from the right end, the right side is clamped by a tip as required, and then machining is carried out.

When the diameter of the shell is smaller, the spring chuck 5, the core rod 9 and other parts can be removed, the appearance of the jacket 4 is processed according to the shape of the inner cavity of the workpiece, positioning rings are made at proper positions of the front end and the middle part, namely, the jacket 4, the spring chuck 5 and the positioning rings 7 are processed into an integral piece, and the center is used for clamping at the right side to prevent loosening.

Claims (4)

1. A tool clamp for aligning the wall thickness difference of a middle-small-caliber stamping shell comprises a pull rod, a connector, a jacket, a spring chuck, a core rod and a positioning ring.

2. The tool clamp for centering and thickness difference of the small-caliber stamped shell wall according to claim 1, wherein the jacket and the joint are fixedly connected together through a key, a nut and a pressing cap are sequentially arranged at the connecting end of the jacket and the joint, and the nut and the pressing cap can fix the jacket in place.

3. The tool clamp for finding the thickness difference of the central small-caliber stamping shell wall according to claim 1, characterized in that the spring clamp and the core rod are fixedly connected through a pull pin, a spring ring is sleeved on the spring clamp, and the spring ring can fasten the pull pin.

4. The tool clamp for finding the thickness difference of the wall of the middle and small-caliber stamping shell as claimed in claim 1, wherein a plurality of bolt holes connected with a machine tool are arranged on the joint.

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