Feeding mechanism for irregular stepped cylindrical blanks

Abstract

The utility model discloses a feeding mechanism for irregular stepped cylindrical blanks. The feeding mechanism comprises a mounting seat, an ejection air cylinder which is horizontally arranged forwards is fixed to the rear side of the mounting base, and a pushing hole is formed in the position, corresponding to a telescopic rod of the ejection air cylinder, of the mounting base; a supporting strip is connected to the position, corresponding to the lower portion of the pushing hole, of the mounting base. Vertical rotating shafts are connected to the two sides, corresponding to the material pushing holes, of the mounting base, the two rotating shafts are rotationally sleeved with workpiece limiting blocks extending forwards, C-shaped limiting grooves extending inwards are formed in the opposite sides of the ends of the two workpiece limiting blocks, and the ends of the two workpiece limiting blocks are close to each other; a spring located below the workpiece limiting blocks is connected between the ends of the two workpiece limiting blocks. The feeding device not only can improve feeding safety, but also has the advantages of being high in feeding and supplying stability and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding mechanism of irregular stepped cylindrical blank, in particular to a feeding mechanism of irregular stepped cylindrical blank. BACKGROUND

[0002] The milling of conventional metal parts will use machine tool, and the part needs to be placed in the chuck of machine tool for clamping and fixing before processing. When the side of the part is flat and regular, the part can be directly pushed into the chuck through the track provided with a cylinder. When the side of the part is irregular stepped, the part is inclined when placed on the track due to the different sizes of the two ends of the part, so it is difficult to push the part horizontally into the chuck. Therefore, the part generally needs to be manually taken and inserted into the chuck during feeding, and the operator needs to wait until the part is clamped by the chuck before releasing the fingers, which may cause safety hazards.

[0003] Therefore, the existing feeding operation of irregular stepped cylindrical blank has the problem of low safety. SUMMARY

[0004] The utility model discloses a feeding mechanism of irregular stepped cylindrical blank, which has the advantages of high safety.

[0005] The utility model discloses a feeding mechanism of irregular stepped cylindrical blank, which has the advantages of high safety.

[0006] In the foregoing feeding mechanism of irregular stepped cylindrical blank, a horizontal adjusting screw is threadedly connected to each workpiece limiting block, and the end of the adjusting screw penetrates the workpiece limiting block and is in contact with the mounting seat.

[0007] In the foregoing feeding mechanism of irregular stepped cylindrical blank, two horizontal first screws are provided on the support strip, and the two first screws are distributed vertically. One end of the first screw is clamped outside the mounting seat, and the other end of the first screw is threadedly connected to the mounting seat. Vertical first waist holes are provided on the support strip at positions corresponding to the two first screws.

[0008] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0009] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0010] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0011] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0012] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0013] The feeding mechanism of the irregular stepped cylindrical blank piece is characterized in that a downward arc-shaped concave surface is arranged on one side of the limiting groove close to the mounting base.

[0014] The bottom surface of the convex strip is screw-connected with a plurality of fourth screws distributed along the convex strip, and the fourth screws are penetrated through and clamped below the feeding track; the bottom surface of the feeding track is provided with a transverse fourth waist hole at a position corresponding to each fourth screw.

[0015] Compared with the prior art, the utility model discloses a support strip is connected below the push hole on the mounting seat, and a workpiece limiting block extending forward is rotatably connected on both sides of the mounting seat through a vertical rotating shaft, the end of the two workpiece limiting blocks is provided with a C-shaped limiting slot extending inward on the side facing each other, and the end of the two workpiece limiting blocks is arranged close to each other, which makes the middle cylinder of the irregular stepped cylindrical blank be horizontally clamped in the limiting slot, and the bottom surface of the rear cylinder of the irregular stepped cylindrical blank can be supported by the support strip, so that the irregular stepped cylindrical blank can be kept horizontal, when the top feeding cylinder on the mounting seat makes the telescopic rod in the push hole elongate, the irregular stepped cylindrical blank can be pushed to move forward horizontally, and when the step of the middle and rear section of the irregular stepped cylindrical blank is on the limiting slot, the two workpiece limiting blocks can be rotated outward and opened, so that the middle and rear cylinder of the irregular stepped cylindrical blank can also pass between the two limiting slots, and the feeding process does not need manual participation, and the safety is higher, and the two workpiece limiting blocks are connected by a spring below the end, when the irregular stepped cylindrical blank is completely sent out of the limiting slot, the two workpiece limiting blocks rotated outward and opened can be reset by the spring, and the next irregular stepped cylindrical blank can be conveniently and stably placed.

[0016] In addition, the utility model discloses that the horizontal adjusting screw is screw-connected on the workpiece limiting block, and the end of the adjusting screw penetrates the workpiece limiting block and contacts the mounting seat, and the staff can change the length of the adjusting screw protruding from the workpiece limiting block by screwing the adjusting screw, so that the initial opening angle between the limiting slots of the two workpiece limiting blocks can be adjusted, so that the irregular stepped cylindrical blank with different diameter middle cylinders can be placed, and the application range is improved. The utility model discloses that the two first screws are vertically distributed and screw-connected on the mounting seat through the support strip, the support strip is provided with a vertical first waist hole at a position corresponding to the two first screws, which makes the support strip be vertically adjusted after the two first screws are unscrewed, the distance between the top end of the support strip and the push hole is changed, so that when the irregular stepped cylindrical blank with different diameter rear cylinders is placed, the irregular stepped cylindrical blank can be kept horizontal, and the application range is improved. The side of the limiting slot close to the mounting seat is provided with a downward arc-shaped concave surface, which can support and hold the irregular stepped cylindrical blank to some extent when the irregular stepped cylindrical blank is pushed out, so that the irregular stepped cylindrical blank can be kept stable, and the irregular stepped cylindrical blank can be more accurately sent into the collet.

[0017] An inclined feeding track is provided on one side of the mounting base. A protruding rib is connected to the bottom of the feeding track. A clearance guide groove is provided between one side of the protruding rib and the side of the feeding track. Limiting pressure plates are provided at intervals above the protruding rib. A clearance groove is provided between the limiting pressure plate and the side of the feeding track, which is aligned vertically with the guide groove. This allows the middle section of the irregular stepped cylindrical blank to be confined between the protruding rib and the limiting pressure plate. The rear section of the irregular stepped cylindrical blank can be confined within the clearance guide groove and the clearance groove, so that the irregular stepped cylindrical blanks can be arranged side by side in the feeding track. Two spaced-apart limiting cylinders are connected to the bottom of the feeding track. The irregular stepped cylindrical blanks can be fed one by one by controlling the extension and retraction of the two limiting cylinders.

[0018] The convex strips within the feeding track can move horizontally, adjusting the width of the guide groove. Replacing the limiting pressure plates with different widths allows for adjustment of the groove width, thus accommodating irregular stepped cylindrical blanks of varying rear cylindrical lengths. The distance between the side baffles on both sides of the bottom plate in the feeding track is adjustable, accommodating irregular stepped cylindrical blanks of different lengths. The limiting pressure plates can be height-adjusted within the feeding track, accommodating irregular stepped cylindrical blanks with different diameter mid-cylinder sections. The distance between the two limiting cylinders is also adjustable, accommodating the limiting of irregular stepped cylindrical blanks with mid-cylinder sections of different diameters.

[0019] Therefore, this utility model not only improves the safety of feeding, but also has the advantages of high stability in feeding and supplying materials and a wide range of applications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the mounting base.

[0022] Figure 3 This is a schematic diagram of the mounting base after the workpiece limiting block has been removed;

[0023] Figure 4 This is a structural schematic diagram of the workpiece limiting block.

[0024] Figure 5 This is a schematic diagram of the workpiece feeding mechanism;

[0025] Figure 6 This is a structural diagram of the bottom surface of the base plate;

[0026] Figure 7 This is a structural diagram of the material feeding track section;

[0027] Figure 8is the structure schematic view of the position-limiting pressing plate and the connecting plate part;

[0028] Figure 9 is the structure schematic view of the convex strip;

[0029] Figure 10 is the structure schematic view of the mounting piece and the position-limiting cylinder part;

[0030] Figure 11 is the structure schematic view of the irregular stepped cylindrical blank.

[0031] The marks in the drawings are: 1-mounting seat, 2-ejecting cylinder, 3-pushing hole, 4-supporting strip, 5-rotation shaft, 6-workpiece position-limiting block, 7-position-limiting groove, 8-spring, 9-adjusting screw, 10-first screw, 11-first waist hole, 12-arc-shaped concave surface, 13-rolling groove, 14-feeding track, 15-mounting piece, 16-position-limiting cylinder, 17-convex strip, 18-giving-way guide groove, 19-position-limiting pressing plate, 20-giving-way groove, 21-giving-way hole, 22-bottom plate, 23-side baffle, 24-second screw, 25-second waist hole, 26-position-adjusting waist hole, 27-connecting plate, 28-third screw, 29-third waist hole, 30-fourth screw, 31-fourth waist hole. DETAILED DESCRIPTION

[0032] The utility model will be further explained in connection with the drawings and examples below, but it is not as the basis for limiting the utility model.

[0033] Example. An irregular stepped cylindrical blank feeding mechanism, as shown in Figures 1 to 11 The mounting seat 1 is provided with a horizontally forwardly arranged ejecting cylinder 2 fixed to the rear side of the mounting seat 1, and a pushing hole 3 is arranged on the mounting seat 1 corresponding to the telescopic rod of the ejecting cylinder 2; a supporting strip 4 is connected to the mounting seat 1 corresponding to the position below the pushing hole 3; vertical rotation shafts 5 are connected to both sides of the mounting seat 1 corresponding to the pushing hole 3, and C-shaped position-limiting grooves 7 are arranged on the end portions of the two workpiece position-limiting blocks 6 extending inwardly, and the end portions of the two workpiece position-limiting blocks 6 are arranged close to each other; a spring 8 is connected between the end portions of the two workpiece position-limiting blocks 6 below the workpiece position-limiting blocks 6.

[0034] A horizontally arranged adjusting screw 9 is threadedly connected to each workpiece position-limiting block 6, and the end portion of the adjusting screw 9 penetrates the workpiece position-limiting block 6 and is in contact with the mounting seat 1.

[0035] Two horizontal first screws 10 are arranged on the support strip 4, and the two first screws 10 are arranged in an up-down distribution; one end of the first screw 10 is clamped outside the mounting seat 1, and the other end of the first screw 10 is threadedly connected in the mounting seat 1; the support strip 4 is provided with a vertical first waist hole 11 at a position corresponding to the two first screws 10.

[0036] The limiting groove 7 is provided with a downward arc-shaped concave surface 12 on the side close to the mounting seat 1.

[0037] The mounting seat 1 is provided with a workpiece feeding mechanism on one side; the top surface of the workpiece limiting block 6 close to the workpiece feeding mechanism is provided with a downward concave rolling groove 13; the workpiece feeding mechanism comprises a feeding track 14 which is arranged downwardly inclined to the mounting seat 1, an installation piece 15 which is connected above the bottom end of the feeding track 14, two limiting air cylinders 16 which are connected to the installation piece 15 and are arranged in an interval along the direction of the feeding track 14.

[0038] The bottom surface of the feeding track 14 is connected with a convex strip 17 arranged along the feeding track 14, and a gap guiding groove 18 is arranged between one side of the convex strip 17 and the side edge of the feeding track 14, and the bottom end of the gap guiding groove 18 is arranged in abutment with the rolling groove 13.

[0039] The feeding track 14 is detachably connected with a limiting pressing plate 19 arranged along the feeding track 14, the limiting pressing plate 19 is arranged in an interval between the bottom surface and the top surface of the convex strip 17, and the bottom surface of the limiting pressing plate 19 and the top surface of the convex strip 17 are arranged in parallel; one side of the limiting pressing plate 19 is detachably connected with the feeding track 14, and a gap groove 20 is arranged between the other side of the limiting pressing plate 19 and the side surface of the feeding track 14, and the gap groove 20 is arranged in vertical opposite to the gap guiding groove 18; the limiting pressing plate 19 is provided with a gap hole 21 at a position corresponding to each limiting air cylinder 16.

[0040] The feeding track 14 comprises a bottom plate 22, and the two sides of the bottom plate 22 are provided with vertical side plates 23, the bottom surface of each side plate 23 is threadedly connected with a plurality of second screws 24 arranged along the side plate 23, and the second screws 24 are arranged in penetration and clamping below the bottom plate 22; the bottom plate 22 is provided with a horizontal second waist hole 25 at a position corresponding to each second screw 24.

[0041] The connecting position corresponding to the upper limiting air cylinder 16 on the mounting piece 15 is provided with a position adjusting waist hole 26 arranged along the direction of the feeding track 14; the limiting pressing plate 19 is integrally provided with a connecting plate 27 which is upwardly bent and closely attached to the side wall of the feeding track 14 on the side corresponding to the connection with the feeding track 14; the connecting plate 27 is threadedly connected with a plurality of third screws 28 which are distributed along the connecting plate 27 and penetrate and are clamped outside the side wall of the feeding track 14; the side wall of the feeding track 14 is provided with a third waist hole 29 which is vertically directed to the limiting pressing plate 19 at the position corresponding to each third screw 28.

[0042] The bottom surface of the convex strip 17 is threadedly connected with a plurality of fourth screws 30 which are distributed along the convex strip 17 and penetrate and are clamped below the feeding track 14; the bottom surface of the feeding track 14 is provided with a fourth waist hole 31 which is transversely arranged at the position corresponding to each fourth screw 30.

[0043] Working principle: the irregular stepped cylindrical blank is put into the feeding track 14 one by one from the rear, the middle section of the irregular stepped cylindrical blank is limited between the convex strip 17 and the limiting pressing plate 19, the rear section of the irregular stepped cylindrical blank is limited in the giving way guide groove 18 and the giving way groove 20, a plurality of irregular stepped cylindrical blanks can be horizontally rolled down one by one and are blocked by the telescopic rod of the lower limiting air cylinder 16 on the mounting piece 15 at the bottom end of the feeding track 14, so that the plurality of irregular stepped cylindrical blanks are distributed side by side in the feeding track 14.

[0044] After the telescopic rod on the upper limiting air cylinder 16 is elongated and penetrates through the giving way hole 21, the second irregular stepped cylindrical blank at the bottom end of the feeding track 14 is blocked, then the telescopic rod of the lower limiting air cylinder 16 is shortened, the first irregular stepped cylindrical blank at the bottom end of the feeding track 14 rolls down under the action of its own gravity, the rear section of the irregular stepped cylindrical blank passes through the rolling groove 13 and enters between the two workpiece limiting blocks 6 and is supported by the top end of the supporting strip 4, and the center of the rear section of the irregular stepped cylindrical blank is aligned with the pushing hole 3; the middle section of the irregular stepped cylindrical blank enters between the two limiting grooves 7 from the workpiece limiting block 6 and is supported, so that the irregular stepped cylindrical blank still maintains a horizontal shape. Then, the telescopic rod of the lower limiting air cylinder 16 is elongated and penetrates through the giving way hole 21, and the telescopic rod of the upper limiting air cylinder 16 is shortened, so that the irregular stepped cylindrical blank in the feeding track 14 rolls down for feeding.

[0045] Then, the telescopic rod in the rear side of the mounting seat 1 pushes the irregular stepped cylindrical blank into the collet from the pushing hole 3. In this process, the middle section of the irregular stepped cylindrical blank is pushed forward along the limiting groove 7, and the rear section of the irregular stepped cylindrical blank is pushed forward to make the two workpiece limiting blocks 6 rotate outward around the vertical rotating shaft 5, the distance between the two limiting grooves 7 is expanded until the rear section of the irregular stepped cylindrical blank can pass through the two limiting grooves 7. The side of the limiting groove 7 close to the mounting seat 1 is provided with a downward arc-shaped concave surface 12, which can support the irregular stepped cylindrical blank to some extent when the irregular stepped cylindrical blank is pushed out, so that the irregular stepped cylindrical blank can be more accurately sent into the collet.

[0046] After the irregular stepped cylindrical blank is pushed, the spring 8 connected between the two workpiece limiting blocks 6 at the lower end of the two workpiece limiting blocks 6 pulls the two workpiece limiting blocks 6 back to the original position, waiting for the next irregular stepped cylindrical blank to be pushed.

[0047] By loosening all the four screws 30, then adjusting the horizontal position of the four screws 30 relative to the four waist holes 31, the protrusions 17 can move horizontally relative to the feeding track 14, and the width of the accommodation guide groove 18 can be adjusted; by replacing the limiting pressure plates 19 of different widths, the width of the accommodation groove 20 can be adjusted, so as to adapt to irregular stepped cylindrical blank parts of different rear cylindrical lengths. By loosening all the two screws 24 at the bottom of the two side plates 23, then adjusting the horizontal position of the two screws 24 relative to the two waist holes 25, the two side plates 23 can move horizontally relative to the bottom plate 22, and the distance between the two side plates 23 can be adjusted, so as to adapt to irregular stepped cylindrical blank parts of different lengths. By loosening all the three screws 28 on the connecting plate 27, then adjusting the vertical position of the three screws 28 relative to the three waist holes 29, the connecting plate 27 and the limiting pressure plate 19 can move vertically, and the distance between the limiting pressure plate 19 and the protrusions 17 can be adjusted, so as to adapt to irregular stepped cylindrical blank parts of different middle cylindrical diameters; by adjusting the position of the upper limiting cylinder 16 relative to the adjusting waist hole 26, the distance between the two limiting cylinders 16 can be adjusted, so as to adapt to the limiting of irregular stepped cylindrical blank parts of different middle cylindrical diameters. By turning the adjusting screw 9 on the workpiece limiting block 6, the length of the adjusting screw 9 extending out of the workpiece limiting block 6 can be changed, so as to adjust the initial opening angle between the end limiting grooves 7 of the two workpiece limiting blocks 6, and the irregular stepped cylindrical blank parts of different middle cylindrical diameters can be stably placed between the two limiting grooves 7. By loosening the two screws 10, then adjusting the vertical position of the two screws 10 relative to the one waist hole 11, the support bar 4 can move vertically relative to the mounting seat 1, so that when the support bar 4 lifts the irregular stepped cylindrical blank parts of different rear cylindrical diameters, the irregular stepped cylindrical blank parts can remain horizontal.

Claims

1. An irregular stepped cylindrical blank feeding mechanism, comprising a mounting seat (1); characterized in that: The rear side of the mounting base (1) is fixed with a horizontal forwardly arranged material pushing cylinder (2), and the mounting base (1) is provided with a material pushing hole (3) corresponding to the telescopic rod of the material pushing cylinder (2); the mounting base (1) is connected with a support strip (4) corresponding to the position below the material pushing hole (3); the two sides of the mounting base (1) corresponding to the material pushing hole (3) are both connected with vertical rotating shafts (5), the outer sides of the two rotating shafts (5) are both rotatably sleeved with forwardly extending workpiece limiting blocks (6), the end sides of the two workpiece limiting blocks (6) are both provided with inwardly extending C-shaped limiting grooves (7), and the end sides of the two workpiece limiting blocks (6) are arranged close to each other.

2. The irregular stepped cylindrical blank feeding mechanism according to claim 1, characterized in that: The outer sides of the two workpiece limiting blocks (6) are both provided with horizontal adjusting screws (9) which are threadedly connected with the workpiece limiting blocks (6), and the end sides of the adjusting screws (9) are arranged in contact with the mounting base (1).

3. The irregular stepped cylindrical blank feeding mechanism according to claim 1, characterized in that: The support strip (4) is provided with two horizontal first screws (10) which are arranged in a vertically distributed manner, one end side of the first screw (10) is clamped on the outer side of the mounting base (1), and the other end side of the first screw (10) is threadedly connected in the mounting base (1); the support strip (4) is provided with vertical first waist holes (11) corresponding to the positions of the two first screws (10).

4. The irregular stepped cylindrical blank feeding mechanism according to claim 1, characterized in that: The side of the limiting groove (7) close to the mounting base (1) is provided with a downwardly extending arc-shaped concave surface (12).

5. The irregular stepped cylindrical blank feeding mechanism according to claim 1, characterized in that: The mounting base (1) is provided with a workpiece feeding mechanism on one side thereof; the top surface of the workpiece limiting block (6) close to the workpiece feeding mechanism is provided with a downwardly recessed material rolling groove (13); the workpiece feeding mechanism comprises a feeding track (14) which is downwardly and obliquely arranged towards the mounting base (1), a mounting piece (15) which is connected above the bottom end of the feeding track (14), two limiting cylinders (16) which are connected to the mounting piece (15) and face the bottom surface of the feeding track (14), and the two limiting cylinders (16) are arranged in a spaced apart manner along the direction of the feeding track (14).

6. The irregular stepped cylindrical blank feeding mechanism according to claim 5, characterized in that: The bottom surface of the feeding track (14) is connected with a protruding strip (17) which is arranged along the feeding track (14), and a position giving guiding groove (18) is arranged between one side of the protruding strip (17) and the side edge of the feeding track (14), and the bottom end of the position giving guiding groove (18) is arranged in abutment with the material rolling groove (13).

7. The irregular stepped cylindrical blank feeding mechanism according to claim 6, characterized in that: The feeding track (14) is detachably connected with a limiting pressing plate (19) which is arranged along the feeding track (14), the bottom surface of the limiting pressing plate (19) is arranged in a spaced apart manner with the top surface of the protruding strip (17), the bottom surface of the limiting pressing plate (19) is arranged in parallel with the top surface of the protruding strip (17); one side of the limiting pressing plate (19) is detachably connected with the feeding track (14), and a position giving groove (20) is arranged between the other side of the limiting pressing plate (19) and the side surface of the feeding track (14), the position giving groove (20) is arranged in vertical opposition with the position giving guiding groove (18); the limiting pressing plate (19) is provided with position giving holes (21) corresponding to the positions of the two limiting cylinders (16).

8. The irregular stepped cylindrical blank feeding mechanism according to claim 5, characterized in that: The feeding track (14) comprises a bottom plate (22), both sides of the bottom plate (22) are provided with vertical side plates (23), the bottom surface of each side plate (23) is threadedly connected with a plurality of No. 2 screws (24) distributed along the side plate (23), the No. 2 screws (24) penetrate and are clamped below the bottom plate (22); the bottom plate (22) is provided with transverse No. 2 waist holes (25) corresponding to the positions of each No. 2 screw (24).

9. The irregular stepped cylindrical blank feeding mechanism according to claim 7, characterized in that: The mounting sheet (15) is provided with a position adjusting waist hole (26) arranged along the feeding track (14) corresponding to the connecting position of the upper limiting air cylinder (16); the limiting pressing plate (19) is integrally provided with a connecting plate (27) which is upwardly bent and closely attached to the side wall of the feeding track (14) on the side of the limiting pressing plate (19) connected with the feeding track (14); the connecting plate (27) is threadedly connected with a plurality of No. 3 screws (28) distributed along the connecting plate (27), the No. 3 screws (28) penetrate and are clamped outside the side wall of the feeding track (14); the side wall of the feeding track (14) is provided with No. 3 waist holes (29) corresponding to the positions of each No. 3 screw (28) and vertically facing the limiting pressing plate (19).

10. The irregular stepped cylindrical blank feeding mechanism according to claim 7, characterized in that: The bottom surface of the convex strip (17) is threadedly connected with a plurality of No. 4 screws (30) distributed along the convex strip (17), the No. 4 screws (30) penetrate and are clamped below the feeding track (14); the bottom surface of the feeding track (14) is provided with transverse No. 4 waist holes (31) corresponding to the positions of each No. 4 screw (30).

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