CN100503096C - Automatic flat head chamfering machine for cutting tube blanks - Google Patents

Abstract

The automatic chamfering machine for cut pipe blank includes a vertically feeding manipulator, a pedestal, a horizontal track unit, a feeding cabin on the pedestal, a horizontal feeding bin, a centering fixture, and a digital self-driving head. It has the advantages of monolithic computer control, high machining efficiency, high machining precision, high operation stability and reliability, etc.

Description

Automatic flat head chamfering machine for cutting tube blanks

technical field

The invention relates to the technical field of mechanical processing machine tools, in particular to a fully automatic flat-end chamfering machine for cutting blanks of pipes.

Background technique

Now people basically use ordinary lathes to process DC motor casings, and process them in different steps. This ordinary processing method takes a long time to process, resulting in waste of labor and lathes. At the same time, it is difficult to guarantee the processing accuracy of the casing, and the processing efficiency is very low. , the output is small, and it is difficult to adapt to the needs of the development of modern DC motors.

Contents of the invention

The purpose of the present invention is to design a full-automatic flat-end chamfering machine for cutting blanks of tubes with high efficiency, good processing quality and high precision, which completes the flat-end and chamfering of both ends of the DC motor shell at one time.

The automatic flat-head chamfering machine for cutting tube blanks of the present invention includes: a vertical feeding manipulator, a base, a feeding bin on the base, a horizontal feeding hopper, a centering clamping device, a horizontal driving rail device, There are also digital self-propelled power heads.

A digitally controlled self-driving power head, including: a motor 39, a housing 42, a carriage 43, and a speed measuring wheel 40 mounted on the first shaft sleeve 53. The speed measuring sensor 41 is connected to the housing 42 with threads and has an internal spline The first bearing 51 of the first shaft sleeve 53 is supported in the first shaft sleeve 53, and the bearing sleeve 52 is fixed with the housing 42 with screws, and the main shaft 44 is connected to the first shaft sleeve 53 with the spline at its right end. connection, its left end is connected with the second shaft sleeve 45 with the second bearing 63, bearing cap 59, nut 58 and screw 60, the push plate 48 at the left end of the second shaft sleeve 45, the ferrule 46 is based on the circular key 47, It is closely connected with the second shaft sleeve 45, and a ball nut 49 is installed symmetrically with the axis on the push plate 48, and is fixed on the 48 by screws. The ball screw 50 is installed inside the ball nut 49, and its left end is fixed on the housing by a bearing. In the dividing plate of 42, its right-hand side is supported with plane bearing 64, is connected with the shaft of stepping motor 65 by coupling 56.

Principle of action: The motor 39 drives the belt pulley 55 synchronously, and the belt pulley 55 drives the first bushing 53 to rotate through the key 54. The spline at the right end of the main shaft 44 is set in the first bushing 53, so the main shaft rotates, so the tachometer 40 rotates. , at this time, the speed sensor (41) transmits the number of the spindle speed to the PLC, and the PLC sends instructions to the stepper motor according to the program, and the coupling 56 drives the ball screw 50, and the ball screw 50 passes through the ball nut 49, and the push plate 48 , circular key 47, ferrule 46, promote the second axle sleeve 45 to do fast forward → working feed → fast rewind motion. The main shaft 44 not only drives the cutter to rotate, but also performs fast forward→working feed→fast rewind motion synchronously with the bushing every time the cutter feeds. Self-driving distance 0~35. Self-driving distance and cutter feed per revolution can be given by man-machine dialogue.

The feeding bin includes: a material receiving bottom plate, a vertical side plate, and an adjusting plate width structure connected with the vertical side plate.

The horizontal feeding hopper includes: the slider is installed in the body, the roller at one end of the slider is in contact with the groove in the slider, the slider is connected with the cylinder rod of the drive cylinder, and the slider is connected with the centering block. The center makes a reciprocating (opening and closing) movement, the socket is connected to the body, and the quick-change plug has different diameters (Φ45-Φ105) to adapt to work with different diameters.

The centering clamping device includes: the cylinder is connected with the connecting plate, one end of the clamping spindle and the transmission rack are connected with the connection plate, the other end of the transmission rack is meshed with the transmission gear, and the clamping head is connected with the other end of the clamping spindle , the transmission gear meshes with the transmission rack at the same time, the other end of the transmission rack is connected to the connecting plate, the connecting plate is connected to the clamping installation block, and the clamping installation block is connected to the clamping block, and the above components are installed on the bottom plate .

The mechanism for adjusting the width of the side plate includes: an adjusting screw, which is provided with a ring sleeve in the middle of the left and right threaded adjustment screw rod, and the ring sleeve is set in the groove on both sides of the bracket, and the ring sleeve is tightly connected with the middle part of the adjusting screw rod and the pin to prevent When the adjusting screw rod rotates, the positions are serially connected, and the adjusting screw rod is connected with the screw sleeve, and one end of the screw sleeve is connected with the side plate. One end of the guide rod, the extension spring, and the adjustment screw are connected with the vertical corner plate, and the other end is connected with the side plate.

The vertical feeding manipulator is a commonly used manipulator, and the machine base is equipped with a single-chip electrical control and pneumatic control system commonly used in machine tools. All can be bought on the market or ordinary technicians can select for use with reference to existing books.

The DC motor shell automatic flat head chamfering machine completes the DC motor shell flat head chamfering in this way:

Put the blank into the feeding bin (can accommodate 20-30 pieces of blanks) → the blank rolls into the feeding hopper 3 by its own weight → the horizontal cylinder delivers a blank to point M → the vertical manipulator descends to point M to take the material and returns → feeding hopper 3 Retraction→Vertical manipulator 1 descends to send material to N point→Clamping device 4 clamps workpiece→Vertical manipulator 1 rises and retreats, digital self-driven force head 5 spindles carry combined tools to process both ends of the workpiece and reverse inner and outer corners at the same time→Machining The workpiece is discharged from the discharge port.

The advantages of the automatic flat head chamfering machine for cutting tube blanks of the present invention are: single-chip microcomputer control, powerful function, stable and reliable; two combined cutters simultaneously process both end faces (including both end faces, inner and outer chamfering of both ends), high efficiency and high precision , and the blade is an indexable blade, and the cutter body and the handle are connected by quick change, which is very convenient to adjust; the fully enclosed centering clamping device not only has a large clamping diameter range (Φ45-Φ105), but also has excellent chip resistance; The feeding hopper is equipped with a blank centering device, which can ensure that both ends can be cut evenly when the minimum margin is reasonable, and is also conducive to uniform wear of the tool; the width of the hopper can be adjusted steplessly to adapt to the workpiece length ≥ 55-160 Need; digital self-driven power head, not only stable and reliable work, but also equipped with electronic digital display scale, accurate and fast feeding; all guide rails are ball guide rails, flexible movement, wear-resistant, dust-proof and chip-proof performance is excellent; centralized pipeline Lubrication can be done manually or automatically.

Description of drawings

Figure 1 is a schematic diagram of the structure of the chamfering machine.

Figure 2 is a front view of the chamfering machine.

Figure 3 is a schematic diagram of the structure of the chamfering machine silo.

Figure 4 is a top view of the silo structure.

Fig. 5 is a schematic diagram of the mechanism for adjusting the width of the side plate.

Figure 6 is a partial top view of the bracket.

Fig. 7 is a partial sectional view of the bracket.

Fig. 8 is a front view of the feeding hopper of the chamfering machine.

Fig. 9 is a top view of the feeding hopper of the chamfering machine.

Figure 10 is a side view of the feeding hopper of the chamfering machine.

Fig. 11 is a structural schematic diagram of a clamping device for centering a chamfering machine.

Figure 12 is a front view of the power head.

Figure 13 is a top view of the power head.

Detailed ways

Example:

A fully automatic flat-head chamfering machine for cutting tube blanks, comprising: a vertical feeding manipulator 1, a base 6, a horizontal drive track device E, a feeding bin 2 mounted on the base 6, a horizontal feeding hopper 3, centering A clamping device 4, and a digitally controlled self-driving power head 5.

A digitally controlled self-driving power head, including: a motor 39, a housing 42, a carriage 43, and a speed measuring wheel 40 mounted on the first shaft sleeve 53. The speed measuring sensor 41 is connected to the housing 42 with threads and has an internal spline The first bearing 51 of the first shaft sleeve 53 is supported in the first shaft sleeve 53, and the bearing sleeve 52 is fixed with the housing 42 with screws, and the main shaft 44 is connected to the first shaft sleeve 53 with the spline at its right end. connection, its left end is connected with the second shaft sleeve 45 with the second bearing 63, bearing cap 59, nut 58 and screw 60, the push plate 48 at the left end of the second shaft sleeve 45, the ferrule 46 is based on the circular key 47, It is tightly connected with the second bushing 45, and a ball nut 49 is installed symmetrically with the axis on the push plate 48, and is fixed on the 48 by screws. The ball nut 49 is equipped with a ball chasing rod 50, and its left end is fixed on the housing by a bearing. In the dividing plate of 42, its right-hand side is supported with plane bearing 64, is connected with the shaft of stepping motor 65 by coupling 56.

Principle of action: The motor 39 drives the belt pulley 55 synchronously, and the belt pulley 55 drives the first bushing 53 to rotate through the key 54. The spline at the right end of the main shaft 44 is set in the first bushing 53, so the main shaft rotates, so the tachometer 40 rotates. , at this time, the speed sensor 41 transmits the data of the spindle speed to the PLC, and the PLC sends instructions to the stepping motor according to the program, and drives the ball screw 50 through the shaft coupling 56, and the ball screw 50 passes through the ball nut 49, the push plate 48, Circular key 47, ferrule 46, promote second axle sleeve 45 to do fast forward→work feed→fast rewind motion. And the main shaft 44 not only drives the tool to rotate, but also the feeder and the axle sleeve synchronously perform fast forward→work feed→fast rewind motion every time the tool turns. The self-driving distance is 0~35, and the self-driving distance and the feed amount of the tool per revolution can be given by man-machine dialogue.

The feeding bin 2 includes: a material receiving bottom plate 8, vertical side plates 7, and a width-adjusting structure 9 connected to the vertical side plates 7.

The horizontal feeding hopper 3 includes: a slide block 19 installed in the body 15, a roller 34 is installed at one end of the slide block 19, and the roller 34 is in contact with the central groove of the slide plate 16, the slide plate 16 is connected with the cylinder of the drive 17, and the slide block 19 and the centering Block 18 links to each other, and under the effect of slide plate 16, center is made complex (opening and closing) motion, and socket 35 links to each other with body 15, and quick change plate has different garden diameters (Φ45-Φ105), to adapt to the workpiece of different diameters.

A centering clamping device 4 includes: the cylinder 21 is connected to the corner plate 22, the self-aligning clamping mounting seat 24, one end of the transmission rack 26 are connected to the connecting plate 23, and the other end of the transmission rack 26 is connected to the transmission rack 27 The clamping block 25 is installed in the self-aligning mounting seat 24, the transmission gear 27 is meshed with the transmission rack 26 and 28 at the same time, and the other end of the transmission rack 28 is connected with the connecting plate 3, and this connection is equipped with another A thin self-aligning mounting seat 30, the clamping block 29 is installed in the 31, and the above components are all installed on the base plate 33 and in the gear box 32.

Adjusting side plate width mechanism 9 comprises: adjusting screw rod 13, is that the middle part of left and right threaded adjusting screw rod 13 is equipped with adding loop cover 35, adding loop cover 35 is contained in the two side plate grooves of support 38, and adding loop cover 35 and adjusting and adjusting screw rod 13 middle parts are tightly connected with pin 36, which can prevent the adjusting screw rod 13 from being rotated. Guide rod 11, extension spring 12, one end of adjusting screw rod 13 links to each other with vertical angle plate 10, and the other end links to each other with side plate 7.

Feeding manipulator 1, mechanical self-driven power head 5, feeding bin 2, horizontal feeding hopper 3, centering a clamping device 4, and the horizontal driving track device (E) are all installed on the base 6.

The vertical feeding manipulator is a commonly used manipulator, and the machine base is equipped with a single-chip electrical control and pneumatic control system commonly used in machine tools. All can be bought on the market or ordinary technicians can select for use with reference to existing books.

Claims (1)

1. A fully automatic flat-head chamfering machine for cutting tube blanks, comprising: a vertical feeding manipulator (1), a base (6), a horizontal drive track device (E), and a feeder mounted on the base (6) Warehouse (2), horizontal feeding hopper (3), centering a clamping device (4), it is characterized in that: there is also a digitally controlled self-driven power head (5), and the digitally controlled self-driven power head (5 ) comprises: motor (39), housing (42), plank (43) and the tachometer wheel (40) that is contained on the first axle sleeve (53), and tachometer sensor (41) is threaded and casing (42) connection, the first bearing (51) of the first shaft sleeve (53) with internal splines is supported in the first shaft sleeve (53), and the bearing sleeve (52) is fixed with the housing (42) by screws , the main shaft (44) is connected with the first shaft sleeve (53) by the spline at its right end, and its left end is connected with the second bearing (63), bearing cover (59), nut (58) and screw (60) with the first Two shaft sleeves (45) are connected, and the second shaft sleeve (45) left end push plate (48), ferrule (46) is relying on the circular key (47), closely connected with the second shaft sleeve (45), and Ball nuts (49) are mounted symmetrically with the axis of the main shaft on the push plate (48), fixed on the push plate (48) with screws, ball screws (50) are housed in the ball nuts (49), ball screws (50) ) left end is fixed in the dividing plate of housing (42) with bearing, and ball screw (50) right end is supported with plane shaft (64), is connected with the shaft of stepper motor (65) by coupling (56).

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