CN205021304U - A special multi-station machine tool for hot-melt pipe fitting mold processing - Google Patents

Abstract

The utility model discloses a multi-station special machine tool for hot-melt pipe fitting mold processing, which relates to the field of cutting machine tools, and aims to provide a special machine tool for mold processing with a dividing plate with accurate degrees and high indexing accuracy. It includes a bed, a machine tool column, a tool holder, a dividing plate, a tailstock and a lighting lamp. The dividing plate includes a fixed plate, a movable plate mounted on the fixed plate, and a plurality of teeth are provided on the movable plate. It also includes an active worm and a driven worm located on both sides of the movable plate and meshing with the teeth of the movable plate. One end of the active worm is connected to a motor, and the motor is connected to a controller. The fixed plate and the movable plate are both provided with scale lines, and the number of scale lines on the movable plate is more than the number of scale lines on the fixed plate. The active worm is directly driven to rotate by the motor, and the indexing efficiency is high; the indexing angle is calculated by reading the position of the "0" scale line on the movable plate and the position of the scale line on the movable plate that coincides with the scale line on the fixed plate.

Description

A special multi-station machine tool for hot-melt pipe fitting mold processing

technical field

The utility model relates to the field of cutting machine tools, in particular to a special machine tool for processing hot-melt pipe fitting moulds.

Background technique

Hot-melt pipe fittings are a commonly used plastic product, and hot-melt pipe fittings have various shapes and are used in various occasions. After the hot-melt pipe fittings are produced through the mold, some hot-melt pipe fittings used in special fields need to be processed into special-shaped parts by special machine tools. strict requirements.

In the traditional indexing plate, the transmission ratio between the worm and the turbine is mainly used as the base, and a disc with a hole is placed outside. The transmission ratio of the worm and the turbine shows that the indexing function is completed by rotating the worm on the external disc. Disadvantages It is necessary to calculate the number of divisions first. Although the divisions are accurate, the complex calculation formula makes the work efficiency very low. For the existing quick indexing discs on the market, a 360° dial is placed on the surface of the disc. When in use, the chuck claws are rotated to align the engraved line with the angle, and the indexing function is completed after locking. The disadvantage is that it must be aligned with the engraved line because the engraved line is very thin, which is troublesome. Hydraulic indexing plate, pneumatic indexing plate, and indexing are also very accurate, but the price is high, which is not suitable for small enterprises to purchase multiple sets, which is prohibitive. In addition, in actual processing, some processing angles of the workpiece are relatively fixed in most cases, and the number of angles set is relatively small.

The Chinese invention patent with the publication number CN101209529A disclosed a ratchet indexing plate on July 2, 2008. The invention includes a fixed plate fixed on the machine base, and a chuck is connected to the fixed plate. The clamp A rotating handle is provided outside the head; a ratchet gear is arranged between the fixed disc and the collet, the collet is fixed on the rotating shaft of the ratchet gear, and the ratchet disc of the ratchet gear is fixed on the fixed disc. The ratchet plate is provided with a pin plate outside, and the front end of the pin plate is fixed on the chuck; the pin plate is provided with pins, and 16 or 18 grooves with fixed angles are arranged on the outer wall of the ratchet plate. The inner end of the pin is arranged in the groove. The indexing efficiency of the invention can be increased by more than 10 times without using electric control components. But this invention structure is more complicated, and cost is higher, and operation and maintenance get up inconvenient. Therefore, the utility model provides a quick indexing plate with simpler structure, lower cost, energy saving and high efficiency, more convenient operation and maintenance and long service life.

However, in the machining process of the mold, it is often necessary to process some grooves or patterns on the circumference of the mold, and there are quite strict requirements on the positional relationship between the grooves or patterns on the mold. Therefore, in order to ensure the machining accuracy, The angle of every rotation of the mold needs to be mastered very precisely, and the indexing accuracy is high, so the machining accuracy is also high, so the indexing accuracy of the indexing plate affects the machining accuracy to a large extent. Most of the existing indexing discs achieve indexing through the small and dense teeth or round holes located on the circumference of the indexing disc, but there is no corresponding scale, so the indexing cannot be intuitively known during the machining process of the mold. The degree of rotation of the disc; and most of the existing indexing discs use indexing gears to detect the angle of the indexing disc or the workpiece. Due to the existence of inter-tooth gaps, the accuracy cannot be well controlled.

Contents of the invention

The purpose of this utility model is to provide a special machine tool for hot-melt pipe fitting mold processing with an indexing plate with accurate degree and high indexing precision. Through the scale line on the indexing plate, the degree that the indexing plate has turned can be known. , and the indexing accuracy is high.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A multi-station special machine tool for hot-melt pipe fitting mold processing, including a bed body, a machine column, a tool holder, an indexing plate, a tailstock, and a lighting lamp fixedly connected to the machine column;

The tool holder is arranged on a slider that is slidably connected to the slide rail, and the slider is provided with a mounting seat for installing a processing tool, and the slider is fixedly connected with a positioning block through a fastener, and the mounting seat The quantity is at least two and the mounting base is fixed with the positioning block;

The indexing plate includes a fixed plate, a movable plate set on the fixed plate, and a plurality of teeth are arranged on the movable plate, and it is characterized in that: it also includes a driving worm and a driven worm located on both sides of the movable plate and meshed with the teeth of the movable plate. The worm screw is connected with a motor at one end of the driving worm, and the motor is connected with the controller. Both the fixed disk and the movable disk are provided with scale lines, and the number of scale lines on the movable disk is more than that on the fixed disk.

Wherein, the lighting lamp includes a lamp holder and a lamp holder connected through a lamp pole, the lamp holder is installed on the machine column, the rear end of the lamp holder is connected with the lamp pole, the front end of the lamp holder is provided with a connecting seat, and the connection A reflector is connected to the front end of the seat, and an LED board is arranged on the reflector, and LED lamp beads are welded on the LED board, and the front end of the LED lamp bead passes through the reflector, and a lamp is provided on the reflector and the outer cover of the connecting seat. cover, and the lamp cover is threadedly connected to the front end of the lamp holder.

Wherein, the tailstock includes a slide seat that can slide along the guide rail of the machine tool, one side of the bottom of the slide seat is provided with a chute suitable for the guide rail of the machine tool, and the other side of the bottom of the slide seat has a flat On the sliding surface, the upper end of the sliding seat is provided with a columnar tailstock body, and a through thimble hole is opened in the tailstock body.

Wherein, the motor is a servo motor.

Wherein, the scale line "0" is marked on the fixed disk and the movable disk.

The beneficial effects of the utility model are:

1. Two worms are used on both sides of the movable plate to mesh with it, which eliminates the influence of the gap between the teeth on the indexing, and the indexing accuracy is high; the active worm is directly driven by the motor to rotate, and the indexing efficiency is high; by reading the "0" on the movable plate "The position of the scale line and the position of the scale line on the movable plate that coincides with the scale line on the fixed plate can calculate the angle of the graduation, and the degree is accurate.

2. The tool is set by the positioning block and multiple mounting seats, which makes the tool changing process fast and convenient, saves the time of frequent tool changing, and improves the processing efficiency.

3. Because the lighting on the machine tool uses low-power LED lamp beads instead of ordinary incandescent lamps, and the LED lamp beads are installed through a reasonable structure, it is convenient to use, disassemble and maintain, and achieves More energy-saving and safer to use.

4. The use of the tailstock can firmly clamp the hot-melt pipe fittings to be processed, effectively preventing vibration when the tool cuts the hot-melt pipe fittings to be processed, thereby improving the processing accuracy of the hot-melt pipe fittings to be processed.

5. The servo motor is used to drive the active worm to rotate, and the comparison will be made while driving the worm, and further adjustments will be made through the comparison to ensure the indexing accuracy, so the indexing accuracy is high.

6. Through the positional relationship between the "0" scale line on the fixed plate and the movable plate and the coincident scale line on the movable plate and the scale line on the fixed plate, the angle of the movable plate can be calculated, so as to calculate the graduation The degrees are convenient for reading and the degrees are accurate.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the position of the movable disc in the utility model when it is not rotating;

Fig. 3 is the schematic diagram of the position after the movable disc has turned 160° in the utility model;

Fig. 4 is a schematic diagram of the position of the movable disc after turning over 110° in the utility model;

Fig. 5 is the structural representation of illuminating lamp in the utility model;

Fig. 6 is the structural representation of tool rest in the utility model;

Fig. 7 is the structural representation of tailstock in the utility model;

The reference signs are: 1—fixed plate, 2—movable plate, 3—driving worm, 4—driven worm, 5—motor, 6—controller, 7—scale line, 8—"0" scale line, 51 —Sliding seat, 52—Sliding groove, 53—Sliding surface, 54—Tail seat body, 55—Ejector pin hole, 71—Sliding rail, 72—Slider block, 72a—Dovetail chute, 73—Installation seat, 73a— Wedge bump, 74—locating block, 74a—wedge groove, 75—bolt, 76—locating pin, 77—tightening bolt, 78—fixing block, 78a—flange, 79—pressing block, 710—pressing bolt , 91—wire, 92—lamp holder, 921—connecting hole, 93—lamp post, 94—lamp cap, 941—screw joint, 95—switch, 96—drive circuit board, 97—connecting seat, 971—socket , 98—LED board, 981—LED lamp bead, 99—reflector, 991—light hole, 910—lamp cover, 911—lens.

detailed description

Below in conjunction with accompanying drawing, the utility model is described further:

As shown in Figure 1, a multi-station special machine tool for hot-melt pipe fitting mold processing includes a bed body, a machine column, a tool holder, a cutter head, a tool magazine box, a spindle box, an indexing plate, a tailstock and a fixed connection Lighting lamps on machine column. Set a ball screw in the middle of the column of the machine tool, set a screw nut on the ball screw, and set a ball screw motor on the top of the ball screw; set a slide rail on both sides of the column of the machine tool, and set a guide block on the slide rail respectively. The spindle box is fixedly connected with the guide block and the lead screw nut; the tool magazine box is fixed on the machine column through the tool magazine fixing plate, the tool magazine spindle is assembled in the tool magazine box, the cutter head is fixed on the indexing plate, the cutter head and the The middle of the dial passes through a main shaft of the tool magazine, and the claws are on the peripheral edge of the cutter head. There are guide needle rollers arranged in a circle at the bottom of the dial. The guide rollers mesh with the cam at one end of the camshaft, and the other end of the camshaft is fixed The output gear, the output gear meshes with the bridge gear, the bridge gear meshes with the input gear, and the input gear meshes with the tool magazine motor; the front part of the spindle box is vertically arranged with the spindle, and the tool is arranged in the spindle box, and the rear part of the headstock box is arranged Knife bar is hit, and upper nose bridge and lower nose bridge are arranged at the upper end of the main shaft; said upper nose bridge and lower nose bridge form a cam mechanism with upper roller and lower roller respectively, and the upper roller and lower roller structure are fixed on the spindle box.

The knife bar is an L-shaped structure, and the bending part of the knife bar is connected to both sides of the headstock through a rotating shaft. One end of the headstock is connected to the main shaft, and the other end extends out of the headstock, and corresponds to the tool on the main shaft. The cutter head includes a claw body seat, a track seat, and a tool magazine bearing. The track seat is arranged on the knife claw body seat, the tool magazine bearing is arranged in the center of the track, and the tool magazine main shaft passes through the tool magazine bearing. The interior of the main shaft is hollow, and an adjustment stud is arranged on the upper part of the main shaft, and a knife pin is fixedly connected to the upper end of the adjustment stud, the knife pin passes through the main shaft vertically, and a sliding opening for the knife pin to move is set on the main shaft The lower end of the adjustment stud is connected with a puller rod, the puller rod is covered with a disc spring, the lower end of the puller rod is provided with a clamping claw, and two symmetrical beads are arranged in the inner wall of the main shaft on both sides of the clamping claw.

The knife rest is arranged on the slide block 72 that is slidably connected with the slide rail 71. The slide rail 71 is a dovetail slide rail. Shaped compression block 79, two compression bolts 710 pass through the slide block 72 and are pressed against the compression block 79. The slide block 72 is provided with a mounting seat 73 for installing a processing tool, and the slide block 72 is fixedly connected with a positioning block 74 by fasteners, the fasteners include bolts 75 and positioning pins 76, and the number of bolts 75 is 2 to 4 , the number of bolts 75 in this embodiment is two, the positioning pin 76 passes through the center of the positioning block 74 and the positioning pin 76 is partially embedded in the sliding block 72 . The number of mounting seats 73 is at least two, and the number of mounting seats 73 in this embodiment is two, and the two mounting seats 73 are arranged symmetrically on the side of the positioning block 74 . An embedding structure is provided between the positioning block 74 and the mounting seat 73, and the positioning block 74 is fixedly connected with a fixing block 78 that presses the mounting seat 73 to the positioning block 74 by tightening the bolt 77, so that the mounting seat 73 and the positioning block are realized. Block 74 is fixed. The embedding structure includes a wedge-shaped groove 74a on the side of the positioning block 74 and a wedge-shaped protrusion 73a on the side of the mounting seat 73. The fixed block 78 has a flange 78a, and the flange 78a is fastened to the side of the mounting seat 73 and the flange The contact between 78a and the side of the mounting seat 73 is inclined surface contact. When the knife rest is installed, the wedge-shaped protrusion 73a on the side of the mounting seat 73 is embedded in the wedge-shaped groove 74a of the positioning block 74, and then when the tightening bolt 77 is tightened, the inclined surface of the flange 78a is pressed against the inclined surface on the side of the mounting seat 73 , the mounting seat 73 is pressed against the positioning block 74 so that the mounting seat 73 and the positioning block 74 are fixed. When the workpiece needs to be processed in the same process for a long time, the same processing tool is installed on the two mounting seats 73. Once one of the processing tools is damaged, the bolt 75 is disassembled, and the positioning block 74 uses the positioning pin 76 as a The rotating shaft rotates 180 degrees, so that the processing tool in another mounting seat 73 on the positioning block 74 is in the processing position, and then the bolt 75 is re-tightened to reposition the positioning block 74, so that the replacement of the processing tool is realized; During the processing of different processes, different processing tools are installed in the two mounting seats 73. After one process is processed by one of the processing tools, the bolt 75 is removed, and then the positioning block 74 is rotated 180 degrees with the positioning pin 76 as the rotating shaft. Make the machining tool in another mounting seat 73 on the positioning block 74 be in the next working procedure position, screw 75 bolts again afterwards to make the positioning block 74 reposition. In this way, the tool changing process is fast and convenient, which saves the time of frequent tool changing and improves the processing efficiency. During use, when the axial position of the slider 72 needs to be adjusted, the compression bolt 710 is loosened, and the slider 72 can move rapidly along the slide rail 71. After the axial position of the slider 72 is adjusted, the compression bolt 710 is tightened, so that There is no radial gap between the pressing block 79 and the dovetail chute 72a, and the slide block 72 cannot move, which ensures the stability of the machining process.

The tailstock includes a slide 51 that can slide along the guide rail of the machine tool. One side of the bottom of the slide 51 is provided with a chute 52 that is compatible with the guide rail of the machine tool. The other side of the bottom of the slide 51 has a flat sliding surface. Surface 53, the upper end of slide seat 51 has columnar tailstock body 54, and the cross section of tailstock body 54 becomes square, and has the thimble hole 55 that runs through in the tailstock body 54. The use of the tailstock can firmly clamp the hot-melt pipe fittings to be processed, effectively preventing the phenomenon of vibration when the tool cuts the hot-melt pipe fittings to be processed, thereby improving the processing accuracy of the hot-melt pipe fittings to be processed.

The indexing plate includes a fixed plate 1, a movable plate 2, a driving worm 3, a movable worm 4, a motor 5 and a controller 6. The movable disk 2 is a ring structure, the movable disk 2 is set on the fixed disk 1, and rotates around the axis of the fixed disk 1, and the movable disk 2 is provided with a plurality of teeth. There are driving worm 3 and driven worm 4 on both sides of the movable disk 2, the driving worm 3 and driven worm 4 mesh with the teeth on both sides of the movable disk 2 respectively, the rotation of the driving worm 3 drives the movable disk 2 to rotate, and the movable disk 2 rotates The driven worm 4 is driven to rotate. The reason why two worms are set is to eliminate the influence of the gap between the teeth on the indexing accuracy. One end of the active worm 3 is connected with the motor 5, the motor 5 is connected with the controller 6, the controller 6 controls the rotation of the motor 5, and the motor 5 drives the active worm 3 to rotate a corresponding angle, thereby completing the indexing. Wherein motor can select stepper motor for use, also can select servo motor for use, and the utility model is preferably servo motor, and reason is that servo motor can make further adjustment after comparing in the process of processing, limit processing, limit comparison, limit adjustment.

As shown in Figure 2, the fixed plate 1 and the movable plate 2 are provided with corresponding scale lines 7, and the fixed plate 1 is provided with 32 scale lines 7, and the angle between two adjacent scale lines 7 is 11.25°. The movable disk 2 is provided with 36 scale lines, and the angle between two adjacent scale lines 7 is 10°. Both the fixed disk 1 and the movable disk 2 are provided with a "0" scale line 8. When not divided, the two "0" scale lines are on a straight line. At this time, the "1" scale line on the fixed disk 1 is in line with the movable The angle between the "1" scale marks on disc 2 is 1.25°.

As shown in Figure 3, after the movable disk 2 has rotated through a certain angle, the "0" scale line 8 on the movable disk 2 is located between the "14" scale line and the "15" scale line of the fixed disk 1, and the movable disk 2 The "2" scale line on the fixed disk 1 is in a straight line with a certain scale line on the fixed disk 1, so the angle that the movable disk 2 rotates is: 11.25°×14+1.25°×2=160°, so the movable disk 2 rotates The angle is 160°.

As shown in Figure 4, after the movable disk 2 has rotated through a certain angle, the "0" scale line 8 of the movable disk 2 is located between the "9" scale line and the "10" scale line of the fixed disk 1, and the "0" scale line of the movable disk 2 The "7" scale line is on a straight line with a certain scale line on the fixed disk 1, so the angle that the movable disk 2 rotates is: 11.25°×9+1.25°×7=110°, so the angle that the movable disk 2 rotates is The angle is 110°.

Of course, after the workpiece is installed, the "0" scale line 8 on the fixed plate 1 must not coincide with the "0" scale line 8 on the movable plate 2. Therefore, in this case, the rotation angle of the index plate is the minute The difference between the two values before and after the dial is rotated.

The illuminating lamp includes a lamp holder 92 and a lamp holder 94 connected through a lamp post 93, the lamp holder 92 is installed on the machine column, the rear end of the lamp holder 94 is connected with the lamp post 93, and the front end of the lamp holder 94 is provided with a connecting seat 97, A reflector 99 is connected to the front end of the connecting seat 97, and an LED board 98 is arranged on the reflector 99. An LED lamp bead 981 is welded on the LED board 98, and the front end of the LED lamp bead 981 passes through the reflector 99; the reflector 99 and The connecting seat 97 is covered with a lamp cover 910 , and the lamp cover 910 is screwed to the front end of the lamp holder 94 . The diameter of the front port of the connecting seat 97 is smaller than that of the rear end, and the rear end of the connecting seat 97 is provided with a plug-in portion 971 closely matching with the inner wall of the front port of the lamp cap 94 . 94 connection holes 921 are uniformly arranged on the lamp holder 92 . A switch 95 is provided on the side wall of the lamp holder 94 . The lamp post 93 is a hollow rod that can be twisted in any direction. The wire 91 passes through the lamp post 93 into the lamp holder 94 and is connected with the drive circuit board 96 arranged in the lamp holder 94. The output end of the drive circuit board 96 is connected to the LED board connection. The LED lamp beads 981 are evenly welded on the LED board 98, and the reflector 99 is correspondingly provided with lamp holes 991 for each LED lamp bead 981 to pass through, and the reflector 99 is coated with a reflective coating. The front end of the lamp holder 94 is provided with a threaded portion 941 , and the threaded portion 941 is an external thread. Correspondingly, the rear end of the lamp cover 910 is provided with an internal thread. A lens 911 is disposed inside the front end of the lamp cover 910 , and the rear end of the lens 911 abuts against the front edge of the reflector 99 .

Claims (5)

1. a multistation special purpose machine tool for hot melt pipe fitting Mould Machining, is characterized in that: the illuminating lamp comprising a body, machine pillar, knife rest, index dial, tailstock and be fixedly connected on machine pillar;

Described knife rest is arranged on the slide block (72) that is slidably connected with slide rail (71), described slide block (72) is provided with the mount pad (73) for installing process tool, described slide block (72) is fixed with locating piece (74) by securing member, and the quantity of described mount pad (73) is at least two and described mount pad (73) and locating piece (74) fix;

Described index dial comprises fixed disk (1), be set in the movable disk (2) on fixed disk (1), movable disk (2) is provided with some teeth, also comprise be positioned at movable disk (2) both sides and the active worm screw (3) engaged with the tooth of movable disk (2), driven worm screw (4), initiatively worm screw (3) one end is connected with motor (5), motor (5) is connected with controller (6), fixed disk (1) and movable disk (2) are equipped with graduation mark (7), and graduation mark (7) the line number in movable disk (2) is more than graduation mark (7) the line number on fixed disk (1).

2. the multistation special purpose machine tool of a kind of hot melt pipe fitting Mould Machining as claimed in claim 1, it is characterized in that: described illuminating lamp includes the lamp socket (92) and lamp holder (94) that are connected by lamp stand (93), described lamp socket (92) is installed on machine pillar, described lamp holder (94) rear end is connected with lamp stand (93), described lamp holder (94) front end is provided with Connection Block (97), described Connection Block (97) front end is connected with reflector (99), described reflector (99) is provided with LED board (98), described LED board (98) is welded with LED lamp bead (981), described LED lamp bead (981) front end is through reflector (99), light cover (910) is arranged with outside described reflector (99) and Connection Block (97), and described light cover (910) is connected with lamp holder (94) nose threads.

3. the multistation special purpose machine tool of a kind of hot melt pipe fitting Mould Machining as claimed in claim 1, it is characterized in that: described tailstock comprises can along the slide of the slide of lathe (51), the side, bottom of described slide (51) is provided with the chute (52) suitable with the guide rail of lathe, the bottom opposite side of described slide (51) has smooth sliding surface (53), the upper end of described slide (51), with the tailstock body (54) of column, has through centre hole (55) in described tailstock body (54).

4. the multistation special purpose machine tool of a kind of hot melt pipe fitting Mould Machining as claimed in claim 1, is characterized in that: motor (5) is servomotor.

5. the multistation special purpose machine tool of a kind of hot melt pipe fitting Mould Machining as claimed in claim 1, is characterized in that: fixed disk (1) and movable disk (2) all indicate " 0 " graduation mark (8).