CN108176873A - Sewing-machine rotating shuttle platform processing unit (plant) and processing technology - Google Patents

Abstract

The invention discloses a sewing machine rotary hook table processing device and processing technology, comprising a vertical machining center machine tool and a positioning fixture, a turntable and a turntable tailstock are fixed on the vertical machining center machine tool, and the turntable and the turntable tailstock are fixed There is a positioning fixture, which is equipped with multiple positioning components that individually clamp a single hook table, in which the turntable is driven by the power part to achieve 360° rotation; multiple workpieces and multiple processes can be processed on one device, The processing precision is high.

Description

Processing device and processing technology of rotary hook table of sewing machine

technical field

The invention relates to the field of sewing machine parts processing, in particular to a processing device and a processing technology for a rotary hook table of a sewing machine.

Background technique

In the sewing machine industry, the hook table has a relatively large effect on the sewing of needles and threads. During processing, since the processing parameters of the hook table of the same type of sewing machine are consistent, if each hook table is individually positioned and processed, the error in the positioning of multiple hook tables after processing will cause each hook to The processing accuracy of the hook table is not consistent, and there are few processing steps for the hook table. When processing the second hook table, it is necessary to clamp and position the hook table and correct the machine. In this case, the operation steps are cumbersome and waste manpower. physical resources.

Contents of the invention

Aiming at the deficiencies of the above-mentioned prior art, the present invention proposes a sewing machine rotary hook table processing device and processing technology, which is convenient to ensure that the processing accuracy of multiple rotary hook tables is consistent, and at the same time, the staff is easy to operate, reducing the downtime of the machine, making the rotary hook The output of the shuttle table has increased.

In order to achieve the above-mentioned purpose, one of the schemes of the present invention is: a sewing machine rotary hook table processing device, including a vertical machining center machine tool and a positioning fixture, a turntable and a turntable tailstock are fixed on the vertical machining center machine tool, and the turntable and turntable A positioning fixture is fixed between the tailstocks, and a plurality of positioning components for individually clamping a single hook table are arranged on the positioning fixture, wherein the turntable is driven by the power part to realize 360° rotation.

Preferably, the positioning fixture includes an L-shaped plate and a fixture base plate, wherein two L-shaped plates are respectively fixed on the turntable and the tailstock of the turntable, and the same fixture base plate is fixed and supported on the two L-shaped plates, and the multiple positioning components are divided into The two groups are respectively fixed on the two opposite sides of the L-shaped plate, and the multiple positioning components in the two groups of positioning components are misplaced. The direction of the rotary table is opposite.

Preferably, each positioning assembly includes two rotary hook table top support blocks and a pressing block, wherein the two rotary hook table top support blocks are arranged side by side and a clamping space for the rotary hook table is formed between them, and the two rotary hook table top support blocks are arranged side by side. A pressing block is fixed between the supporting blocks of the shuttle table.

Preferably, a telescopic device arranged horizontally is fixed on one of the support blocks of the rotary hook table, and a pressing block is fixed on the top of the telescopic device.

Preferably, positioning pins are also fixed on the pressing block.

A processing technology for processing the rotary hook table by using the multi-station processing device for the rotary hook table of the sewing machine as described above, characterized in that it includes the following steps:

(1) First place the table of the rotary hook table on the table top support block of the rotary hook table of the positioning component, the cylindrical section of the rotary hook table is inserted between the two table top blocks of the rotary hook table, and the screw rod is artificially twisted, Move the pressing block to the base plate of the fixture, the positioning pin on the pressing block is inserted into the positioning hole of the cylindrical section of the rotary hook table, and the pressing block compresses the rotary hook table, or automatically adjusts the hook table through the expansion and contraction of the hydraulic cylinder. The rotary hook table is pressed tightly, and multiple rotary hook tables are fixed on each group of positioning components in turn. First, the inner hole of the pipe is bored on the first rotary hook table on the fixture base plate, and then the horizontal direction of the vertical machining center machine tool is The sliding seat moves to sequentially carry out boring processing to a plurality of rotary hook tables on one side of the fixture base plate, and then rotates the turntable 180° clockwise to carry out boring processing to a plurality of rotary hook tables on the other side of the fixture basic plate.

(2) Replace the boring tool of the vertical machining center machine tool, the turntable rotates 90° counterclockwise, and the boring tool descends to process the plate hole of the hook table. The multiple rotary hook tables on one side of the plate are processed, and then the turntable is rotated 180° counterclockwise to process the plate holes of the multiple rotary hook tables on the other side of the fixture base plate, and then the cutter head is rotated to replace the tool, and the screw is manually rotated. The pressing block loosens the hook table and the positioning pin on the pressing block leaves the positioning hole of the hook table, and then removes the workpiece.

Compared with the prior art, the present invention has the advantages that the processing of multiple workpieces and multiple processes can be completed on one piece of equipment, the difference between the parts is small, the production speed of the parts is fast, and the set positioning pins are convenient for workpiece positioning. For positioning and fixing, set the supporting block of the hook table to be the same as the table supporting the hook table, and at the same time bear the pressure on the hook table when boring; the telescopic device is set to facilitate the automatic compression of the hook table: the stepping motor is set The rotation angle of the drive turntable is precise, ensuring the precision requirements of processing.

Description of drawings

Fig. 1 is a perspective view of the present invention

Figure 2 is a perspective view of the positioning fixture of the present invention

Fig. 3 is the front view of the positioning fixture of the present invention

Fig. 4 is the front view of the positioning fixture of the present invention rotated 90°

Figure 5 is the front view of the rotary hook table

Fig. 6 is the processing flowchart of the present invention

Among them 1. Vertical machining center machine tool, 1.1, fixed base, 1.2, protective box, 1.3, sliding seat, 1.4, rotary cutter head, 2, turntable base plate, 2.1, turntable, 2.2, turntable tailstock, 2.3, Stepping motor, 3. Positioning fixture, 3.1, Fixture base plate, 3.2, Positioning component, 3.3, Rotary hook table top support block, 3.4, Compression block, 3.5, Telescopic device, 3.6, Positioning pin, 3.7, L-shaped plate .

Detailed ways

Now in conjunction with accompanying drawing, further elaboration of the present invention

As shown in Figure 1-6, the processing device for the sewing machine hook table includes a vertical machining center machine tool 1 and a turntable 2.1, wherein the vertical machining center machine tool 1 includes a fixed base 1.1, a protective box 1.2, a sliding seat 1.3 and a rotary knife Disk 1.4, wherein the edge of the fixed base 1.1 is fixed with a rectangular box-shaped protective box 1.2 by bolts and the protective box 1.2 is provided with an opening, and a sliding seat 1.3 is welded on the fixed base 1.1, and the sliding seat 1.3 includes a lateral Sliding seat and axial sliding seat, wherein the horizontal sliding is located at the top of the axial sliding, and the rotary cutter head 1.4 is fixed on the inner top surface of the protection box 1.2 through bearings, and the protection box on one side of the rotary cutter head 1.4 The tool holder for changing the tool for the rotary cutter head is connected through the motor; the turntable base plate 2 is welded on the sliding seat 1.3, and the sliding seat 1.3 can control the front, rear, left and right movement of the turntable base plate 2. On the turntable base plate 2 is fixed with a turntable 2.1 and a turntable tailstock 2.2 by bolts. The turntable 2.1 is driven by the power part (stepping motor 2.3). The positioning fixture 3 includes a fixture base plate 3.1 and an L-shaped plate 3.7. The two L-shaped plates 3.7 are separated by bolts. Fixed on the turntable 2.1 and the turntable tailstock 2.2, the same fixture base plate 3.1 is fixed by bolts between the two L-shaped plates 3.7, two sets of positioning components 3.2 are respectively fixed by bolts on both sides of the fixture base plate 3.1 and each There are three positioning components in the group, and the positioning components 3.2 on both sides of the fixture base plate 3.1 are dislocated and distributed to prevent debris from falling on other hook tables during processing, and to prevent the rotary cutter head 1.4 from being too large in feed and contact For other workpieces, after the positioning component 3.2 clamps the rotary hook table, the direction of the positioning component 3.2 on both sides of the fixture base plate 3.1 clamps the rotary hook table When the cutter head 1.4 is being processed, the relative position of the rotary cutter head 1.4 and the rotary hook table is the same, and each positioning assembly 3.2 includes two rotary hook table table support blocks 3.3, a pressing block 3.4, and two of the rotary hook table table support blocks 3.3. The blocks 3.3 are arranged side by side and form the clamping space of the rotary hook table between the two. The two sides of the clamping space fit the outer wall of the rotary hook table. The pressure of the shuttle table is fixedly connected between the pressing block 3.4 and the supporting block 3.3 of the rotary hook table through the telescopic device 3.5, the telescopic device 3.5 is connected with the pressing block 3.4 through threads, and the telescopic device 3.5 and the supporting block 3.3 of the rotary hook table are passed through Threaded connection, wherein the telescopic device 3.5 is a hydraulic cylinder or a screw rod, and the pressing block 3.4 is also fixed with a positioning pin 3.6 by a bolt, which matches with the positioning hole on the hook table, and the positioning pin 3.6 can limit the hook table at the same time. position; when clamping the rotary hook table, first place the table top of the rotary hook table on the rotary hook table top support block 3.3 of the positioning component 3.2, and the cylindrical section H of the rotary hook table is snapped into the two rotary hook table top supports Between the blocks 3.3, artificially twist the screw to make the pressing block 3.4 move to the fixture base plate 3.1, and the pressing block 3.4 The positioning pin 3.6 on the top is inserted into the positioning hole of the rotary hook table cylindrical section H, and the pressing block 3.4 compresses the rotary hook table, or automatically compresses the rotary hook table by the expansion and contraction of the hydraulic cylinder.

As shown in Figure 6, the processing technology includes the following steps:

(1) Place the table top of the rotary hook table on the table top support block 3.3 of the positioning component 3.2, and the cylindrical section of the rotary hook table is inserted between the two table top support blocks 3.3 of the rotary hook table, and manually twist The screw rod makes the pressing block 3.4 move towards the fixture base plate 3.1, the positioning pin 3.6 on the pressing block 3.4 is inserted into the positioning hole of the cylindrical section H of the hook table, and the pressing block 3.4 is pressed against the hook table , or automatically compress the rotary hook table through the expansion and contraction of the hydraulic cylinder, and sequentially fix multiple rotary hook tables on each group of positioning components 3.2, and firstly bore the pipe for the first rotary hook table on the fixture base plate 3.1 The inner hole, and then the horizontal sliding seat 1.33.3 moves, and the multiple rotary hook tables on one side of the fixture base plate 3.1 are sequentially bored, and then the turntable 2.1 is rotated 180° clockwise, and the multiple hook tables on the other side of the fixture base plate 3.1 A rotary hook needs to be bored.

(2) Replace the boring tool, the turntable 2.1 rotates 90° counterclockwise, the boring tool goes down to process the plate hole of the hook table, when a plate hole is processed, the sliding seat 1.3 moves, and the boring tool is on the side of the fixture base plate 3.1 The multiple rotary hook tables are processed, and then the turntable 2.1 is rotated 180° counterclockwise to process the plate holes of the multiple rotary hook tables on the other side of the fixture base plate 3.1, and then the rotary cutter head 1.4 is replaced with a tool, and the screw mandrel is manually rotated. The pressing block 3.4 unclamps the rotary hook table and the positioning pin 3.6 on the pressing block 3.4 leaves the positioning hole of the rotary hook table, and then takes off the rotary hook table.

Obviously, the invention is not to be restricted to the described embodiments thereby. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall belong to the protection scope of the present invention. It should be noted that when the two workpieces are fixed by bolts or welding, they may also be fixed by other fixing methods (such as integral molding, extrusion, etc.). The clamping method of drill bit 3.1 can not only be clamped by triangular chuck, but also can be clamped by pneumatic or hydraulic clamping head. The terms "left", "right" and similar expressions used in this specification are only for the purpose of illustration. Models, sizes and conditions are not indicated in the above-mentioned embodiments, and they are selected according to conventional methods or according to the product description.

Claims (6)

1. The processing device of the rotary hook table of the sewing machine, including a vertical machining center machine tool and a positioning fixture, is characterized in that a turntable and a turntable tailstock are fixed on the vertical machining center machine tool, and a positioning fixture is fixed between the turntable and the turntable tailstock , The positioning fixture is provided with a plurality of positioning components that individually clamp a single hook table, wherein the turntable is driven by the power part to achieve 360° rotation. 2. The multi-station processing device for the rotary hook table of a sewing machine according to claim 1, wherein the positioning fixture comprises an L-shaped plate and a fixture base plate, wherein two L-shaped plates are respectively fixed on the turntable and the tailstock of the turntable, Fix and support the same fixture base plate on two L-shaped plates, multiple positioning components are divided into two groups and fixed on the opposite sides of the fixture base plate respectively, and the multiple positioning components of the two sets of positioning components are misaligned distributed. 3. The multi-station processing device for the rotary hook table of a sewing machine according to claim 2, wherein each positioning assembly includes two rotary hook table top support blocks and a pressing block, wherein the two rotary hook table top support blocks The blocks are arranged side by side and form the gripping space of the rotary hook table between the two, and a pressing block is fixed between the supporting blocks of the two rotary hook table tops. 4. The multi-station processing device for the rotary hook table of a sewing machine according to claim 3, wherein a telescopic device arranged horizontally is fixed on one of the supporting blocks of the rotary hook table, and a pressing block is fixed on the top of the telescopic device. 5. The multi-station processing device for the rotary hook table of a sewing machine according to claim 4, wherein a positioning pin is fixed on the pressing block. 6. A processing technology for processing the rotary hook table by applying the multi-station processing device of the rotary hook table of a sewing machine according to claim 1 or 5, it is characterized in that, comprising the steps of: (1) First fix multiple hook tables on each positioning component in turn, first bore the inner hole of the pipeline on the first hook table on the fixture base plate, and then move the horizontal sliding seat of the vertical machining center machine tool, and then Carry out boring processing on multiple rotary hook tables on one side of the fixture base plate, then turn the turntable 180° clockwise, and perform boring processing on multiple rotary hook tables on the other side of the fixture basic plate; (2) Replace the boring tool, the boring tool will process the plate holes of multiple hook tables on one side of the fixture base plate, and then turn the turntable 180° counterclockwise to process the plate holes of multiple rotary hook tables on the other side of the fixture base plate , After the processing is completed, loosen the positioning assembly, and then remove the hook table.