阅读说明：本技术 滚齿机 (Gear hobbing machine ) 是由 郑志勇 牟方奎 周兴良 魏鑫 董雷涛 于 2021-09-08 设计创作，主要内容包括：本发明提供了滚齿机,属于加工设备技术领域。它解决了铜粉清理不便的问题。它包括顶板以及设于顶板上的转盘组件,顶板上于转盘组件侧部平行设置有配合板,配合板端部延伸至转盘组件上且其端部具有圆弧面,转盘组件上连接有圆盘,圆盘外周面具有连续分布的齿且圆盘外周面与圆弧面之间形成成型通道,转盘组件与顶板之间形成空腔,转盘组件上于圆盘边沿正下方设有数个与空腔连通的漏粉孔,转盘组件于空腔内固定有刷子,顶板上贯穿设置有与空腔相连通的漏粉槽。它具有能自动清理铜粉、清理效率高等优点。(The invention provides a gear hobbing machine, and belongs to the technical field of machining equipment. It has solved the inconvenient problem of copper powder clearance. It includes the roof and locates the carousel subassembly on the roof, there is the cooperation board in carousel subassembly lateral part parallel arrangement on the roof, cooperation board tip extends to on the carousel subassembly and its tip has the arc surface, be connected with the disc on the carousel subassembly, the disc outer peripheral face has the tooth of continuous distribution and forms the shaping passageway between disc outer peripheral face and the arc surface, vacuole formation between carousel subassembly and the roof, be equipped with the hourglass powder hole of several and cavity intercommunication under the disc border on the carousel subassembly, the carousel subassembly has the brush in the cavity internal fixation, run through on the roof and be provided with the hourglass powder groove that is linked together with the cavity. The copper powder cleaning machine has the advantages of automatic copper powder cleaning, high cleaning efficiency and the like.)

1. The gear hobbing machine comprises a top plate (1a) and a turntable assembly (2) arranged on the top plate (1a), a matching plate (7) is arranged on the top plate (1a) in parallel at the side part of the turntable assembly (2), the end part of the matching plate (7) extends to the turntable assembly (2) and is provided with an arc surface, the powder leakage device is characterized in that a disc (8) is connected onto the turntable assembly (2), the outer peripheral surface of the disc (8) is provided with continuously distributed teeth, a forming channel (9) is formed between the outer peripheral surface of the disc (8) and an arc surface, a cavity (10) is formed between the turntable assembly (2) and the top plate (1a), a plurality of powder leakage holes (2a1) communicated with the cavity (10) are formed right below the edge of the disc (8) on the turntable assembly (2), a brush (11) is fixed in the cavity (10) on the turntable assembly (2), and a powder leakage groove (1a1) communicated with the cavity (10) is arranged on the top plate (1a) in a penetrating mode.

2. The gear hobbing machine according to claim 1, characterized in that the cavity (10) is a circular cavity, and the brush (11) comprises an elongated connecting body (11a) and a brush bar (11b) attached to the underside of the connecting body (11a), the connecting body (11a) being arranged in a radial direction of the turret assembly (2).

3. The hobbing machine according to claim 2, characterized in that said brushes (11) are two in number and are symmetrically arranged.

4. A gear hobbing machine according to claim 1, 2 or 3, characterized in that the turntable assembly (2) comprises a turntable (2a) and a plane bearing (2b) arranged between the turntable (2a) and the top plate (1a), the cavity (10) being enclosed by the turntable (2a), the plane bearing (2b) and the top plate (1 a).

5. The hobbing machine according to claim 4, characterized in that the flat bearing (2b) is externally sheathed with a dust cover (17) covering the outer and inner rings of the flat bearing (2 b).

6. The hobbing machine of claim 5, characterized in that, the upper pad of the flat bearing (2b) is fixedly connected to the lower side of the turntable (2a), the dust cover (17) is ring-shaped and has a U-shaped cross section, the dust cover (17) is sleeved on the flat bearing (2b) with the opening facing upwards, and the upper side of the dust cover (17) is abutted against the lower side of the turntable (2 a).

7. The gear hobbing machine according to claim 6, characterized in that the lower side of the rotary table (2a) is provided with an annular mounting groove (2a3), and the upper gasket of the flat bearing (2b) is partially embedded in the annular mounting groove (2a3), or the upper gasket and the rotary table (2a) are of an integral structure.

8. The hobbing machine of claim 1 or 2 or 3, characterized in that, the carousel subassembly (2) upside is equipped with cavity (2a2), and disc (8) is located in cavity (2a2) and disc (8) can change the height through moving up and down, and the upper end mouth of powder leakage hole (2a1) runs through the bottom wall of cavity (2a 2).

9. The hobbing machine according to claim 2, characterized in that the number of the powder leaking grooves (1a1) is several, and each powder leaking groove (1a1) is of a long strip shape and is arranged along the radial direction of the turntable (2 a).

Technical Field

The invention belongs to the technical field of processing equipment, and relates to a gear hobbing machine.

Background

In the field of machining at present, in addition to the normal machining by a machine tool, other machining is performed on a part by some other dedicated machining apparatus, for example, a hobbing machine performs hobbing on the outer surface of a cylindrical workpiece, and a typewriter performs lettering on the outer surface of the cylindrical workpiece. For example, patent application No. 201621282337.7 discloses a knurling machine, it includes knurling tooth and carousel subassembly, the carousel subassembly includes the revolution axle, cup joint the carousel on the revolution axle and rotate the axis of rotation that sets up on the carousel, the axis of rotation has two at least, the axle center of all axes of rotation is in the same circumference of carousel, the axle head protrusion of axis of rotation is used for the suit to wait the knurling work piece on the carousel surface, the medial surface of knurling tooth is the arc face of hobbing, the arc face of hobbing is tangent with the work piece of waiting to knurling of axis end of rotation. The workpiece to be machined is sleeved on the shaft end of the rotating shaft, then the rotating disc rotates to convey the workpiece, and when the rotating disc rotates until the workpiece to be machined is contacted with the arc-shaped knurling surface of the knurling teeth, the rotating shaft is driven to rotate by external force, so that the outer circumferential side surface of the workpiece to be machined is machined to form a tooth shape.

Copper powder can be produced when hobbing, and the work piece sets up on the carousel again, will have the copper powder to drop on the carousel along the work piece when processing man-hour, can lead to the copper powder to scattering all around along with the rotation of carousel, needs the staff to utilize air gun or squirt etc. to erode after processing is ended, and the clearance is got up very inconveniently.

Disclosure of Invention

The invention aims to provide a gear hobbing machine aiming at the problems in the prior art, and solves the problem that copper powder is inconvenient to clean.

The purpose of the invention can be realized by the following technical scheme:

hobbing machine, including the roof and locate the carousel subassembly on the roof, the roof on carousel subassembly lateral part parallel arrangement have a cooperation board, cooperation board tip extends to the carousel subassembly on and its tip has the arc surface, its characterized in that, the carousel subassembly on be connected with the disc, the disc outer peripheral face has the tooth of continuous distribution and forms the shaping passageway between disc outer peripheral face and the arc surface, vacuole formation between carousel subassembly and the roof, be equipped with the hourglass powder hole of several and cavity intercommunication under the carousel border on the carousel subassembly, the carousel subassembly is fixed with the brush in the cavity, runs through on the roof and is provided with the hourglass powder groove that is linked together with the cavity.

During processing, a workpiece is vertically placed on the turntable, and the turntable rotates to convey the workpiece. When a workpiece enters the forming channel, the arc surface has a supporting function on the workpiece, so that the outer surface of the workpiece can be extruded and the workpiece is driven to move along the arc surface by means of the teeth on the outer side of the synchronously rotating disc in the continuous rotating process of the turntable, and the hobbing processing is finished. Copper powder can be generated when the outer surface of the workpiece is subjected to gear hobbing by the extrusion of the teeth on the outer peripheral surface of the disc, the powder leakage holes are formed in the turntable assembly under the edge of the disc, so that the generated copper powder can fall into the cavity through the powder leakage holes, and then the turntable assembly automatically sweeps the copper powder out of the cavity by using a brush in the rotating process. The arrangement of the powder leakage hole and the cavity enables copper powder generated during processing to be concentrated, and the upper brush is combined with the rotation of the turntable assembly to directly sweep the copper powder out of the cavity, so that the automatic cleaning of the copper powder is realized, and the cleaning convenience of the copper powder is greatly improved.

In the gear hobbing machine, the cavity is a circular cavity, the brush comprises a long-strip-shaped connector and a brush strip fixedly connected to the lower side surface of the connector, and the connector is arranged along the radial direction of the rotary disc assembly.

Through the arrangement, the sweeping area of the brush is maximized, and the cleaning effect on the copper powder is improved.

In the gear hobbing machine, the number of the brushes is two and the brushes are symmetrically arranged.

In the gear hobbing machine, the rotary disc assembly comprises a rotary disc and a plane bearing arranged between the rotary disc and the top plate, and the cavity is enclosed by the rotary disc, the plane bearing and the top plate.

Set up the carousel subassembly to including carousel and plane bearing, not only can enclose into the cavity automatically in order to realize the concentration of copper powder with the cooperation of hourglass powder hole, can also guarantee the stable rotation of carousel simultaneously.

In the gear hobbing machine, the outer sleeve of the plane bearing is provided with a dust cover for covering the outer ring and the inner ring of the plane bearing.

The dust cover covers planar bearing completely, can prevent like this that the copper powder card from going into planar bearing and causing the influence to the normal rotation of carousel, has guaranteed the stability of structure when improving the copper powder clearance convenience.

In the gear hobbing machine, the upper gasket of the plane bearing is fixedly connected with the lower side surface of the rotary table, the dust cover is annular, the section of the dust cover is U-shaped, the dust cover is sleeved outside the plane bearing with the opening facing upwards, and the upper side surface of the dust cover is abutted against the lower side surface of the rotary table.

The upper gasket of the plane bearing is fixedly connected with the lower side surface of the turntable, then the upper gasket of the plane bearing is matched with the rolling piece of the plane bearing and the lower gasket of the plane bearing to form a complete plane bearing, and then the dust cover is sleeved outside the combined plane bearing in a mode that the opening faces upwards to shield the whole plane bearing. Through the mode, the connection between the plane bearing and the turntable is realized, and the dust hood is sleeved outside the plane bearing to prevent copper powder from entering.

Conventionally, the upper washer of the plane bearing is fixed in the central hole of the turntable, and the structure cannot enclose a cavity and cannot be matched with a dust cover for use.

In the gear hobbing machine, the lower side surface of the rotary table is provided with an annular mounting groove, and the upper gasket part of the plane bearing is embedded in the annular mounting groove or is of an integrated structure with the rotary table.

In the gear hobbing machine, the upper side of the rotary disc component is provided with a concave cavity, the disc is arranged in the concave cavity and can change the height through moving up and down, and the upper end orifice of the powder leakage hole penetrates through the bottom wall of the concave cavity.

The disc is arranged in the concave cavity and can change the height by moving up and down, so that the hobbing machine can change the hobbing length at the lower end part of the workpiece. Because the disc moves relative to the cavity, the upper end orifice of the powder leakage hole penetrates through the bottom wall of the cavity, so that the copper powder can be automatically cleaned, and the copper powder can be prevented from being blocked between the disc and the bottom wall of the cavity or between the side walls to influence the normal movement or stability of the disc.

In the gear hobbing machine, the number of the powder leaking grooves is a plurality, and each powder leaking groove is in a long strip shape and is arranged along the radial direction of the rotary table.

Through the arrangement, the shape of the powder leakage groove can be matched with the shape of the copper powder swept by the brush, so that the copper powder can be swept out of the cavity smoothly.

Compared with the prior art, the gear hobbing machine utilizes the disc with teeth on the peripheral surface as a part for hobbing, so that copper powder generated by hobbing can directly fall into the cavity through the powder leakage hole to be concentrated, and then the brush is utilized to directly sweep the copper powder out of the cavity while the turntable assembly continuously rotates for batch processing, so that the automatic cleaning of the copper powder is realized, and the cleaning convenience is greatly improved.

Drawings

Figure 1 is a schematic view of the present gear hobbing machine.

Fig. 2 is a plan view of the present hobbing machine.

Figure 3 is a schematic diagram of the cooperation between the mating plate, the turntable assembly and the disk in the present gear hobbing machine.

Fig. 4 is a partial sectional view of the present hobbing machine.

FIG. 5 is an enlarged cross-sectional view of the drive shaft, turntable assembly and disk of FIG. 4.

Fig. 6 is an exploded view of the drive shaft, the turntable and the disk of the present gear hobbing machine.

Fig. 7 is a schematic view at the underside of the turntable.

In the figure, 1, a frame; 1a, a top plate; 1a1, powder leakage groove; 1a2, a feed opening; 1b, a blanking channel; 2. a turntable assembly; 2a, a turntable; 2a1, powder leakage hole; 2a2, cavity; 2a3, annular mounting groove; 2a4, assembly holes; 2a5, keyway two; 2b, a plane bearing; 3. a drive shaft; 4. a motor; 5. a coupling; 6. a mounting seat; 7. a mating plate; 8. a disc; 8a, a round hole; 8b, a first key groove; 8c, connecting holes; 9. forming a channel; 10. a cavity; 11. a brush; 11a, a linker; 11b, brushing strips; 12. a flat bond; 13. an adjusting screw; 14. fixing a nut; 15. locking the screw; 16. pressing the sleeve; 17. a dust cover; 18. a guide block; 18a, a material guiding plate; 18a1, a material guiding surface; 19. a material blocking block; 19a and a material blocking strip.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the gear hobbing machine comprises a frame 1 with a top plate 1a, a transmission shaft 3 rotatably arranged on the top plate 1a, and a turntable assembly 2 circumferentially fixed at the upper end of the transmission shaft 3, wherein a motor 4 is connected below the top plate 1a, and an output shaft of the motor 4 is connected with the lower end of the transmission shaft 3 through a coupling 5. An installation seat 6 is fixed on the side part of the turntable assembly 2 on the top plate 1a, an engagement plate 7 parallel to the top plate 1a is connected on the installation seat 6, and the end part of the engagement plate 7 extends to the turntable 2 a. Be equipped with disc 8 on the carousel subassembly 2, disc 8 external diameter is less than carousel subassembly 2 external diameter, and 8 circumference of disc are fixed in on the transmission shaft 3, and 8 outer peripheral faces of disc have the tooth that distributes in succession, and 7 tip of cooperation board have with the concentric arc surface that sets up of disc 8, form shaping passageway 9 between arc surface and the 8 outer peripheral faces of disc.

As shown in fig. 4, 5, 6 and 7, a cavity 10 is formed between the turntable assembly 2 and the top plate 1a, a plurality of powder leakage holes 2a1 with two ends penetrating through are arranged right below the edge of the disc 8 on the turntable assembly 2, the powder leakage holes 2a1 are arranged along the center line of the turntable assembly 2, and the lower end openings of the powder leakage holes 2a1 are all communicated with the cavity 10. The top plate 1a is provided with a powder leaking groove 1a1 in a penetrating way, the notch at the upper end of the powder leaking groove 1a1 is communicated with the cavity 10, and the turntable assembly 2 is fixed with a brush 11 in the cavity 10. Wherein, the cavity 10 is a circular cavity, the brush 11 includes a connecting body 11a in a shape of a long strip and a brush strip 11b fixedly connected to the lower side of the connecting body 11a, and the connecting body 11a is arranged along the radial direction of the turntable assembly 2. In this embodiment, the number of the brushes 11 is two and the brushes are symmetrically arranged, the number of the powder leaking grooves 1a1 is several and the grooves are uniformly distributed along the circumferential direction, and each of the powder leaking grooves 1a1 is a long strip and is arranged along the radial direction of the rotating disc 2 a.

As shown in figures 4, 5, 6 and 7, the turntable assembly 2 is provided with a cavity 2a2 on the upper side, the disc 8 is arranged in the cavity 2a2, the inner disc 8 can change the height by moving up and down, and the upper end opening of the powder leakage hole 2a1 penetrates through the bottom wall of the cavity 2a 2. Disc 8 thickness is greater than cavity 2a2, disc 8 cup joints on transmission shaft 3 and both circumference are fixed, 8 centers of disc run through be provided with transmission shaft 3 matched with round hole 8a, round hole 8a inner wall is equipped with a keyway 8b that both ends run through, it is provided with the hole of joining in marriage to run through on the carousel subassembly 2, the inner wall of pilot hole 2a4 is equipped with two 2a5 of keyway that both ends run through, disc 8 and transmission shaft 3 and carousel subassembly 2 match through embedding the parallel key 12 in keyway 8b and the two 2a5 simultaneously with transmission shaft 3. In this embodiment, a plurality of through connection holes 8c are formed in the disc 8 along the axial direction of the transmission shaft 3, each connection hole 8c is uniformly distributed around the transmission shaft 3, and an adjusting screw 13 is arranged on the disc 8, wherein the rod part of the adjusting screw is downwards in the connection hole 8c in a threaded connection mode, and the length of the rod part of the adjusting screw is larger than the thickness of the disc 8. The rod part of each adjusting screw 13 is also in threaded connection with a fixing nut 14, and the fixing nut 14 is positioned between the head part of the adjusting screw 13 and the disc 8. The upper end part of the transmission shaft 3 is internally threaded with a locking screw 15, a rod part of the locking screw 15 is sleeved with a pressing sleeve 16, and the pressing sleeve 16 is clamped between the disc 8 and the head part of the locking screw 15. The pressing sleeve 16 is in a cylindrical shape with an open lower end, and a through hole for the rod part of the locking screw 15 to pass through is arranged in the center of the upper end of the pressing sleeve 16 in a penetrating manner.

Further, as shown in fig. 4, 5, 6 and 7, the turntable assembly 2 includes a turntable 2a and a plane bearing 2b disposed between the turntable 2a and the top plate 1a, and the cavity 10 is enclosed by the turntable 2a, the plane bearing 2b and the top plate 1 a. A dust cover 17 for covering the outer ring and the inner ring of the flat bearing 2b is provided around the flat bearing 2 b. The plane bearing 2b comprises an upper gasket, a lower gasket and a plurality of rolling parts arranged between the upper gasket and the lower gasket, and the plane bearing 2b is specifically a plane thrust ball bearing. The upper gasket of the plane bearing 2b is fixedly connected with the lower side surface of the turntable 2a, the dust cover 17 is annular and the section shape of the dust cover is U-shaped, the dust cover 17 is sleeved outside the plane bearing 2b with an opening facing upwards, and the upper side surface of the dust cover 17 is abutted against the lower side surface of the turntable 2 a. In this embodiment, the lower side of the turntable 2a is provided with an annular mounting groove 2a3, the upper gasket of the flat bearing 2b is partially embedded in the annular mounting groove 2a3, and the two are fixedly connected by interference fit or welding. Of course, it is also possible to select the upper pad and the rotating disc 2a to be directly integrated, that is, a corresponding structure is directly integrated on the lower side of the rotating disc 2a when the rotating disc 2a is machined, so as to be used as the upper pad of the plane bearing 2 b.

As shown in fig. 1 and 2, a material guiding block 18 is further fixed on the top plate 1a, and the material guiding block 18 is arranged adjacent to the mounting base 6. The guide block 18 is provided with a guide plate 18a extending to the rotary disc 2a in the same direction as the matching plate 7, the guide plate 18a is positioned at the inlet side of the forming channel 9, the end part of the guide plate 18a protrudes out of the end part of the matching plate 7 in the extending direction, the end part of the guide plate 18a is provided with a guide surface 18a1, and one end of the guide surface 18a1 is positioned close to the inlet of the forming channel 9. The level 18a1 is inclined so that the end of the level 18a1 remote from the forming channel 9 projects beyond the end of the mating sheet 7 by a greater distance than the end of the level 18a1 adjacent to the forming channel 9 projects beyond the end of the mating sheet 7. The guiding block 18 is provided with a strip-shaped groove in a penetrating mode, the guiding block 18 and the top plate 1a penetrate through the rod portion to be fixed through a fixing screw which is connected into the top plate 1a in a threaded mode, and the length direction of the strip-shaped groove is the same as the extending direction of the guiding plate 18 a.

As shown in fig. 1 and 2, a material blocking block 19 is further fixed on the top plate 1a, a feed opening 1a2 is arranged at a position, close to the material blocking block 19, on the edge of the rotary table 2a on the top plate 1a, a material blocking strip 19a is arranged on the material blocking block 19, the end portion of the material blocking strip 19a extends to the outer peripheral surface of the circular table 8, the end surface of the material blocking strip 19a is an arc surface matched with the outer peripheral surface of the circular table 8, when the rotary table 2a rotates, a workpiece after hobbing can move along the material blocking strip 19a, and the rotary table 2a between the inlet of the forming channel 9 and the material blocking block 19 is a feeding area. The material blocking strip 19a is obliquely arranged relative to the extending direction of the matching plate 7, and an included angle between the extending direction of the material blocking strip 19a and the extending direction of the matching plate 7 is an obtuse angle. A blanking channel 1b is arranged in the frame 1, the inlet of the blanking channel 1b is in butt joint with the blanking port 1a2, and the outlet of the blanking channel 1b is arranged at the side part of the frame 1.

During processing, a workpiece is vertically placed on the turntable 2a, and the transmission shaft 3 drives the turntable 2a to rotate so as to convey the workpiece. When a workpiece enters the forming channel 9, the arc surface has a supporting function on the workpiece, so that the outer surface of the workpiece can be extruded and driven to move along the arc surface by means of the teeth on the outer side of the synchronously rotating disc 8 in the continuous rotating process of the turntable 2a, and hobbing is finished. Copper powder is generated when the outer surface of a workpiece is subjected to gear hobbing by the extrusion of teeth on the outer peripheral surface of the disc 8, the powder leakage holes 2a1 are arranged right below the edge of the disc 8 on the turntable assembly 2, so that the generated copper powder can fall into the cavity 10 through the powder leakage holes 2a1, the copper powder can be prevented from scattering around through the cavity 10, and then the turntable assembly 2 utilizes the brush 11 to automatically sweep the copper powder out of the cavity 10 from the powder leakage groove 1a1 in the rotating process. Through the arrangement, the copper powder is automatically cleaned. In particular, the disc 8 is fitted into the cavity 2a2 of the turntable assembly 2, and copper powder is prevented from being jammed between the disc 8 and the bottom wall or side wall of the cavity 2a2, which may affect the hobbing accuracy.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.