Feeding mechanism of short material worm whirlwind milling machine

Abstract

The utility model provides a short material worm whirlwind milling machine feeding mechanism, and belongs to the technical field of worm machining equipment. The problems that an existing cyclone milling machine is low in feeding efficiency and small in workpiece machining range are solved. The short material worm whirlwind milling machine feeding mechanism comprises a hopper, the hopper is provided with a material storage groove, and a discharging channel is arranged at the bottom of the material storage groove; the lifting mechanism comprises a supporting plate and a first driving part used for driving the supporting plate to ascend and descend, the supporting plate is located on the outer side of the discharging channel, and a discharging groove used for bearing the workpiece blanks is formed in the supporting plate; the rotary clamping cylinder assembly is located on one side of the hopper and comprises a rotary clamping cylinder and a machine tool spindle mechanism used for driving the rotary clamping cylinder to rotate, and the rotary clamping cylinder is located on the extension line of the blanking groove; and the pushing assembly is used for pushing the workpiece blank from the supporting plate into the rotary clamping cylinder. According to the feeding device, the feeding process is simpler, the feeding efficiency is higher, and the machinable range of workpiece blanks is larger.

Description

TECHNICAL FIELD

[0001] The utility model belongs to worm processing equipment technical field relates to a short material worm whirlwind milling machine feeding mechanism. BACKGROUND

[0002] The whirlwind milling machine is a kind of special equipment for processing worm, one side clamps workpiece to carry out low-speed feed movement, one side drives cutter high-speed rotation through whirlwind milling head mechanism, and makes the thread on workpiece cutting formation.

[0003] The structure is same as the precision whirlwind milling machine for small modulus worm full-automatic processing and the method thereof disclosed in Chinese patent application (application number: 201710476143.3), including machine tool bed mechanism, feeding mechanism assembly, digital control platform assembly, whirlwind milling head mechanism assembly, discharging conveyor belt, hydraulic system mechanism, constant temperature filtration system, oil mist collection system.The feeding mechanism assembly thereof includes guide rod, guide rail, mechanical clamping arm, horizontal sliding block, vertical sliding block, motor, feeding groove base, feeding module movable plate, feeding module fixed plate, workpiece spindle, oil pressure rotary cylinder clamp, which is lifted up and down through feeding module movable plate and cooperates with feeding module top plate, and the workpiece blank to be processed is lifted from the bottom to the top of feeding groove, so that the mechanical clamping arm clamps the feeding.Due to the round bar shape of the workpiece blank, its surface is relatively smooth, and the mechanical clamping arm is prone to slipping off when clamping, and the mechanical clamping arm needs to go through the processes of clamping, moving, loosening and returning during feeding, which takes a lot of time, and the length of the worm to be cut is shorter, so that the time spent in feeding seriously affects the overall processing efficiency, and since the mechanical clamping arm clamps the rear end of the workpiece blank during feeding, the rear end of the workpiece cannot be inserted into the rotary clamping cylinder, thereby affecting the workable length of the workpiece blank, so that a section for clamping is reserved on the workpiece blank in advance, and then cut off after processing, which leads to complicated process, low processing efficiency and increased cost. SUMMARY

[0004] The utility model aims at the above problems existing in prior art, and provides a short material worm whirlwind milling machine feeding mechanism, and the technical problem to be solved by the utility model is how to improve the feeding efficiency of whirlwind milling machine.

[0005] The purpose of the utility model can be realized by the following technical scheme: a short material worm whirlwind milling machine feeding mechanism, characterized by comprising:

[0006] The hopper has a storage groove for placing the workpiece blank, and the bottom of the storage groove is provided with a discharging channel;

[0007] The lifting mechanism includes a supporting plate and a driving member one for driving the supporting plate to move up and down, the supporting plate is located on the outside of the discharging channel, and a blanking groove for receiving the workpiece blank is formed on the supporting plate.

[0008] A rotating chuck assembly is located at one side of the hopper, and includes a rotating chuck for fixing the workpiece blank and a machine tool spindle mechanism for driving the rotating chuck to rotate, and the rotating chuck is located on the extension line of the blanking groove.

[0009] A pushing assembly is located at the other side of the hopper, and is used for pushing the workpiece blank from the pallet to the rotating chuck.

[0010] The utility model discloses a lifting mechanism is lifted to the workpiece from the discharge channel of hopper bottom to the upper of hopper, makes the workpiece blank be located on the axis of rotating chuck, and be located between rotating chuck and pushing assembly, pushes through pushing assembly, can make the workpiece blank enter rotating chuck to fix, the whole process is simple and direct, and the time consumption is shorter, can improve the work efficiency of feeding greatly.

[0011] Moreover, compared with the workpiece blank is taken by mechanical hand, pushes and does not need to take the rear end of workpiece blank, can push the workpiece blank whole into rotating chuck, makes the workpiece blank longer workable part.

[0012] In the short material worm whirlwind milling machine feeding mechanism, the machine tool spindle mechanism includes a rotating spindle and a driving motor for driving the rotating spindle to rotate, the rotating spindle is hollow cylindrical, the rotating chuck is coaxially fixed to one end of the rotating spindle, and a hollow guide cylinder is coaxially fixed in the shaft hole of the rotating spindle, one end of the guide cylinder is adjacent to the pallet and the other end extends into the rotating chuck. In this way, the workpiece blank can enter the rotating chuck along the guide cylinder under the action of the push rod.

[0013] In the short material worm whirlwind milling machine feeding mechanism, the hopper includes a bottom plate, two side plates and a front baffle, two guide shafts are arranged between the two side plates in the transverse direction, an adjusting baffle is arranged between the two side plates, the adjusting baffle is in sliding cooperation with the two guide shafts and can be fixed relative to the guide shafts, and the bottom plate, the front baffle, the adjusting baffle and the side plate on one side form the above-mentioned storage groove. In this way, the width of the storage groove can be adjusted according to the length of the workpiece blank to adapt to the workpiece blank.

[0014] In the short material worm whirlwind milling machine feeding mechanism, the rear side of the side plate and the rear side of the adjusting baffle are provided with mounting portions, the lower end of the mounting portion is suspended relative to the bottom plate, a guide strip is fixed on the mounting portion, the lower end of the guide strip is bent towards the pallet side, and the lower end of the guide strip and the bottom plate of the storage groove form the above-mentioned discharge channel.

[0015] In the short material worm whirlwind milling machine feeding mechanism, the pushing assembly comprises a guide rail, a moving table, a translation driving mechanism and a push rod, the guide rail is horizontally arranged, the moving table is slidably arranged on the guide rail, the translation driving mechanism is used for driving the moving table to reciprocate along the guide rail, and the push rod is in the shape of a long rod and is fixed relative to the moving table.

[0016] In the short material worm whirlwind milling machine feeding mechanism, the bottom plate is provided with a plurality of accommodation holes in the width direction of the discharging channel, the lifting mechanism further comprises a mounting plate, the mounting plate is located below the blanking groove bottom plate and is connected with a driving part, the mounting plate is provided with a plurality of jacks corresponding to the accommodation holes, and the driving part can drive the mounting plate to move up and down and make the jacks extend into the storage groove through the corresponding accommodation holes. When the jacks move up and down with the supporting plate, they can extend into the storage groove to push the workpiece blank, so that the workpiece blank is shaken, and material jamming is avoided.

[0017] In the short material worm whirlwind milling machine feeding mechanism, the rear side of the supporting plate is provided with a limiting convex part protruding outward, and damping buffer devices are arranged above and below the limiting convex part, so that the moving precision of the supporting plate during upward and downward movement is improved, and the movement of the supporting plate is more stable.

[0018] Compared with the prior art, the short material worm whirlwind milling machine feeding mechanism has the following advantages:

[0019] 1、The workpiece blank in the hopper is lifted by the lifting mechanism, and then pushed into the rotating clamping cylinder by the push rod, so that the whole feeding process is more simple, and the feeding efficiency can be greatly improved.

[0020] 2、Since the push rod is used to push the workpiece blank into the rotating clamping cylinder, the rear end of the workpiece blank can completely enter the rotating clamping cylinder, so that the machining range is larger.

[0021] 3、The hopper and the lifting mechanism of the short material worm whirlwind milling machine feeding mechanism form accurate cooperation, so that one workpiece blank can be stably lifted each time, and the work is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the utility model;

[0023] Figure 2 is a sectional view of the rotating clamping cylinder assembly;

[0024] Figure 3 is a structural schematic view of another perspective of the utility model;

[0025] Figure 4 is a structural schematic view of the cooperation between the hopper and the lifting mechanism;

[0026] Figure 5 is a sectional view of the cooperation between the hopper and the lifting mechanism;

[0027] Figure 6 yes Figure 1 A magnified view of part A in the middle.

[0028] In the diagram, 1. Base; 2. Hopper; 2a. Discharge channel; 21. Base plate; 21a. Clearance hole; 22. Side plate; 23. Front baffle; 24. Guide shaft; 25. Adjusting baffle; 2b. Mounting part; 26. Guide bar; 3. Rotary clamp assembly; 31. Rotary clamp; 32. Machine tool spindle; 33. Drive motor; 34. Guide cylinder; 4. Pushing assembly; 41. Fixed plate; 42. Guide rail; 43. Moving table; 44. Mounting frame; 45. Push rod; 51. Support plate; 51a. Drop chute; 51b. Limiting protrusion; 511. Base plate; 512. Slot plate; 52. Mounting plate; 53. Drive component one; 54. Sliding seat; 55. Guide column; 56. Damping buffer device; 57. Push rod. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] A loading mechanism for a short-material worm gear milling machine, such as Figure 1 As shown, the assembly includes a base 1, a hopper 2, a rotating clamp 31 assembly 3, and a pushing assembly 4. The hopper 2 is fixed on the base 1 and located between the rotating clamp 31 assembly 3 and the pushing assembly 4. The hopper 2 has a storage trough and a lifting mechanism. The bottom of the storage trough is provided with a discharge channel 2a. The workpiece blank in the storage trough can enter the lifting mechanism through the discharge channel 2a and be lifted to the top of the hopper 2 by the lifting mechanism. Then, the pushing assembly 4 pushes the workpiece blank into the rotating clamp 31 assembly 3 for fixation, thus completing the loading process simply and quickly.

[0031] Specifically, such as Figures 3 to 5As shown, the hopper 2 is arranged above the seat body 1, the hopper 2 comprises a bottom plate 21, two side plates 22, and a front baffle 23, two spaced guide shafts 24 are arranged between the two side plates 22 in the transverse direction, and an adjusting baffle 25 is arranged between the two side plates 22, the adjusting baffle 25 is in sliding fit with the two guide shafts 24 and can be fixed relative to the guide shafts 24 by bolts, the bottom plate 21, the front baffle 23, the adjusting baffle 25 and the side plate 22 on one side form the above-mentioned storage tank, in this way, the position of the adjusting baffle 25 can be adjusted according to the length of the workpiece blank, so as to place the workpiece blank. The bottom plate 21 is arranged downwardly inclined from the front side to the rear side, the rear side of the side plate 22 and the rear side of the adjusting baffle 25 are provided with mounting portions 2b, the lower end of the mounting portion 2b is suspended relative to the bottom plate 21, and the mounting portion 2b is detachably connected with a guide strip 26 through bolts, and the lower end of the guide strip 26 is bent towards the side of the supporting plate 51, so that the guide strip 26 and the bottom plate 21 of the storage tank form the above-mentioned discharge passage 2a. The bolt holes for connecting the guide strip 26 with the mounting portion 2b are all vertically arranged waist-shaped holes, so as to adjust the height according to the size of the workpiece blank.

[0032] As shown in Figure 4 , Figure 5 , the lifting mechanism comprises a supporting plate 51, a mounting plate 52 and a driving member 53, the driving member 53 is mounted on the seat body 1, in this embodiment, the driving member 53 can be a driving member outputting linear force such as a pneumatic cylinder or a hydraulic cylinder, the mounting plate 52 is connected with the driving member 53 and located below the bottom plate 21 of the storage tank, the lower end of the supporting plate 51 is fixedly connected with one side of the mounting plate 52, so that the supporting plate 51 is located outside the discharge passage 2a, and the top of the supporting plate 51 is provided with a blanking groove 51a, the size of the blanking groove 51a can only accommodate one workpiece blank. When the driving member 53 drives the supporting plate 51 to descend, the workpiece blank in the storage tank can enter the blanking groove 51a through the discharge passage 2a; then the driving member 53 drives the supporting plate 51 to ascend, so that the workpiece blank in the blanking groove 51a is located at the upper part of the hopper 2 and faces the rotating clamp cylinder 31 assembly 3.

[0033] Further, in order to improve the moving precision of the supporting plate 51 when ascending and descending, two vertically arranged guide columns 55 are further arranged on the seat body 1, the guide columns 55 are located at the rear side of the hopper 2, and the back of the supporting plate 51 is provided with two sliding seats 54 which are in one-to-one correspondence with the two guide columns 55 and in sliding fit. Further, the back of the supporting plate 51 is further provided with an outwardly protruding limiting protrusion 51b, and damping buffer devices 56 are arranged above the limiting protrusion 51b and below the limiting protrusion 51b, so as to improve the stroke precision and stability of the supporting plate 51.

[0034] Further, in the embodiment, the bottom plate 21 is provided with a plurality of let holes 21a along the width direction of the discharge channel 2a, the mounting plate 52 is provided with a plurality of top rods 57 corresponding to the let holes 21a, and the driving member 53 can drive the mounting plate 52 and the top rods 57 to move up and down. When the supporting plate 51 moves up and down, the top rods 57 can extend into the storage groove and push the workpiece blank upward to make it vibrate, thereby avoiding material jamming.

[0035] As shown in Figure 5 , the supporting plate 51 is composed of a base plate 511 and a groove plate 512, the groove plate 512 is detachably connected to the top of the base plate 511 by bolts, and the blanking groove 51a is arranged on the top of the groove plate 512, so that the groove plate 512 of the corresponding specification can be replaced according to the size of the different workpiece blanks, so that the blanking groove 51a is matched with the workpiece blank, and the height of the lifted workpiece blank is basically unchanged, which is convenient for clamping.

[0036] As shown in Figure 1 , Figure 2 , the rotary clamp cylinder 31 assembly 3 is arranged on one side of the hopper 2, which includes a rotary clamp cylinder 31 for fixing the workpiece blank and a machine tool spindle 32 mechanism for driving the rotary clamp cylinder 31 to rotate, wherein the rotary clamp cylinder 31 is located on the extension line of the blanking groove 51a, the machine tool spindle 32 mechanism includes a rotary spindle and a driving motor 33, the driving motor 33 is in transmission connection with the rotary spindle through a belt, used for driving the rotary spindle to rotate, the rotary spindle is a hollow cylindrical structure, one end of the rotary spindle is coaxially fixed with the rotary clamp cylinder 31, the other end faces one side of the hopper 2 and is adjacent to the hopper 2, a guide cylinder 34 is coaxially fixed in the shaft hole of the rotary spindle, the guide cylinder 34 is also a hollow cylinder, and the inner hole diameter of the guide cylinder 34 is slightly larger than the diameter of the workpiece blank, one end of the guide cylinder 34 is adjacent to the supporting plate 51, and the other end extends into the rotary clamp cylinder 31 and is adjacent to the chuck of the rotary clamp cylinder 31, so that the workpiece blank on the supporting plate 51 can enter the rotary clamp cylinder 31 along the guide cylinder 34 and be fixed by the chuck.

[0037] As shown in Figure 1 , Figure 6 , the push assembly 4 is located on the other side of the hopper 2, which includes a guide rail 42, a moving table 43, a translation driving mechanism and a push rod 45, a fixed plate 41 is fixed on the seat body 1, the fixed plate 41 is located on the rear side of the hopper 2, the guide rail 42 is transversely fixed on the fixed plate 41, in the embodiment, the guide rail 42 is two guide rails arranged in upper and lower intervals, the moving table 43 is in sliding fit with the guide rail 42, the translation driving mechanism is arranged between the moving table 43 and the fixed part, used for driving the moving table 43 to move reciprocatingly along the guide rail 42, in the embodiment, the translation driving mechanism is a screw transmission mechanism driven by a motor, the push rod 45 is in a long rod shape and is transversely fixed on the moving table 43 through a mounting bracket 44, the front end of the push rod 45 faces the supporting plate 51 and the rotary clamp cylinder 31, so as to push the workpiece blank on the push plate into the rotary clamp cylinder 31.

[0038] The working process of the utility model is: the workpiece blank to be processed is placed in the storage bin of the hopper 2, the driving part one 53 of the lifting mechanism drives the installation plate 52 to descend, and the supporting plate 51 and the jacking rod 57 are synchronously moved downward, the storage channel is opened and one workpiece blank enters the blanking groove 51a on the top of the supporting plate 51, then the supporting plate 51 and the jacking rod 57 are moved upward, the workpiece blank is moved upward at the same time, the jacking rod 57 jacks the workpiece blank in the storage groove, so as to avoid material clamping, after the supporting plate 51 is moved to the position, the workpiece blank, the push rod 45 and the rotary clamp cylinder 31 are basically located on the same axis, then the push rod 45 moves towards the workpiece blank and pushes one end of the workpiece blank, so that the workpiece blank passes through the guide cylinder 34 in the rotary main shaft and enters the rotary clamp cylinder 31 to be clamped and fixed, so as to be processed, then the push rod 45 is reset, and the feeding is completed once.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the attached claims.

[0040] Although the terms such as seat body 1, hopper 2, rotary clamp cylinder 31, push rod 45 are used more herein, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; any kind of additional limitation is contrary to the spirit of the utility model.

Claims

1. A short stock worm whirlwind mill stock feeding mechanism, characterized in that, The utility model relates to a kind of machine tool for the production of workpiece, including: Hopper (2), the hopper (2) has the storage tank for placing workpiece blank, the bottom of the storage tank is provided with discharge passage (2a); Lifting mechanism, including the driving piece one (53) for driving the lifting of supporting plate (51), the supporting plate (51) is located outside discharge passage (2a), the supporting plate (51) is opened on the blanking groove (51a) for receiving workpiece blank; Rotary clamp cylinder (31) assembly (3), located in one side of hopper (2), including the rotary clamp cylinder (31) for fixing workpiece blank and the machine tool spindle (32) mechanism for driving rotary clamp cylinder (31) rotation, the rotary clamp cylinder (31) is located on the extension line of blanking groove (51a); Pushing assembly (4), located in the other side of hopper (2), for pushing workpiece blank from supporting plate (51) to rotary clamp cylinder (31).

2. The short stock worm cyclone mill feed mechanism of claim 1, wherein, The machine tool spindle (32) mechanism includes rotary spindle and driving motor (33) for driving rotary spindle rotation, the rotary spindle is hollow cylinder, the rotary clamp cylinder (31) is coaxially fixed to one end of rotary spindle, the hollow guide cylinder (34) is coaxially fixed in the shaft hole of rotary spindle, one end of the guide cylinder (34) is adjacent to supporting plate (51) and the other end extends into rotary clamp cylinder (31).

3. The short stock worm cyclone mill feed mechanism of claim 2, wherein, The hopper (2) includes bottom plate (21), two side plates (22) and front baffle (23), two the side plate (22) is provided with two interval guide shafts (24) along transverse direction between two the side plate (22), and adjusting baffle (25) is arranged between two the side plate (22), the adjusting baffle (25) is slidably connected with two guide shafts (24) and can be fixed relative to guide shaft (24), the bottom plate (21), front baffle (23), adjusting baffle (25) and one side side plate (22) form the above-mentioned storage tank.

4. The short stock worm cyclone mill feed mechanism of claim 3, wherein, The rear side of the side plate (22) and the rear side of the adjusting baffle (25) are provided with mounting portion (2b), the guide strip (26) is fixed on the mounting portion (2b), the lower end of the guide strip (26) is bent towards the side of supporting plate (51), and the lower end of the guide strip (26) and the bottom plate (21) of the storage tank form the above-mentioned discharge passage (2a).

5. The short stock worm cyclone mill feed mechanism of claim 1 or 2 or 3, wherein, The pushing assembly (4) includes guide rail (42), moving table (43), translation driving mechanism and push rod (45), the guide rail (42) is transversely arranged, the moving table (43) is slidably arranged on the guide rail (42), the translation driving mechanism is used to drive the reciprocating movement of the moving table (43) along the guide rail (42), and the push rod (45) is long rod and is fixed relative to the moving table (43).

6. The short stock worm cyclone mill feed mechanism of claim 3, wherein, The bottom plate (21) is provided with a plurality of spacing holes (21a) along the width direction of the discharge channel (2a), the lifting mechanism further comprises a mounting plate (52) located below the bottom plate (21) of the discharge chute (51a) and connected with a driving member (53), the mounting plate (52) is provided with a plurality of ejector rods (57) corresponding to the spacing holes (21a), and the driving member (53) can drive the mounting plate (52) to move up and down and make the ejector rods (57) penetrate through the corresponding spacing holes (21a) and extend into the storage chute.

7. The short stock worm cyclone mill feed mechanism of claim 3, wherein, The rear side of the supporting plate (51) is provided with an outwardly protruding limiting protrusion (51b), and the upper side and the lower side of the limiting protrusion (51b) are provided with damping buffer devices (56).

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