A high-precision gear hobbing machine capable of realizing automatic feeding

Abstract

The utility model relates to the technical field of gear hobbing machines, and proposes a high-precision gear hobbing machine capable of automatic feeding, which is used for gear hobbing of a gear blank with a through hole in the center. The gear hobbing cutter is rotatably arranged on a feed frame, the feed frame is slidably arranged on a frame, a processing slide frame is slidably arranged on the frame, the sliding direction of the processing slide frame is parallel to the sliding direction of the feed frame, the processing slide frame moves away from or close to the gear hobbing cutter after sliding, the rotating shaft is rotatably arranged on the processing slide frame, a positioning piece is arranged on the rotating shaft for fixing the gear blank, a feeding slide frame is slidably arranged on the frame, a feeding tube is arranged on the feeding slide frame, a through hole is sleeved on the feeding tube for installing the gear blank, after the feeding slide frame slides, the end of the feeding tube abuts or cancels the abutment positioning piece, a feeding push plate is slidably arranged on the feeding slide frame, and after the feeding push plate slides, it is used to push the gear blank to the positioning piece. Through the above technical scheme, the problem of time-consuming and labor-intensive manual feeding in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing machines, and in particular to a high-precision gear hobbing machine capable of realizing automatic feeding. Background Art

[0002] Gear hobbing machine is the most widely used type of gear processing machine tool. It can cut spur and helical cylindrical gears, and can also process worm wheels, sprockets, etc. Gear processing machine tools that use hobs to process spur, helical and herringbone cylindrical gears and worm wheels according to the development method.

[0003] At present, most gear hobbing machines use manual single-loading, which is time-consuming and labor-intensive. After each workpiece is processed, it is necessary to manually remove and install a new blank, which affects the processing efficiency. At the same time, manual loading has safety hazards. In view of the emergence of the above problems, the existing technology has not solved them well, which has brought troubles to the normal operation of work in this field. Therefore, a high-precision gear hobbing machine that can realize automatic feeding is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model provides a high-precision gear hobbing machine capable of realizing automatic feeding, which solves the problem of time-consuming and labor-intensive manual feeding in the related technology.

[0005] The technical solution of the utility model is as follows: a high-precision gear hobbing machine capable of realizing automatic feeding, used for gear hobbing a gear blank with a through hole in the center, comprising a frame, a processing slide frame, a rotating shaft, a positioning member, a feeding slide frame, a feeding tube, a feeding push plate, a feed frame and a gear hobbing cutter, wherein the gear hobbing cutter is rotatably arranged on the feed frame, the feed frame is slidably arranged on the frame, the processing slide frame is slidably arranged on the frame, the sliding direction of the processing slide frame is parallel to the sliding direction of the feed frame, the processing slide frame slides away from or close to the gear hobbing cutter, the rotating shaft is rotatably arranged on the processing slide frame, the positioning member is arranged on the rotating shaft, and is used to fix the gear blank,

[0006] The feeding slide frame is slidably arranged on the frame, the feeding tube is arranged on the feeding slide frame, the through hole is sleeved on the feeding tube and is used to install the gear blank. After the feeding slide frame slides, the end of the feeding tube abuts against or cancels the abutment against the positioning member, the feeding push plate is slidably arranged on the feeding slide frame, and after sliding, the feeding push plate is used to push the gear blank to the positioning member.

[0007] Optionally, the positioning member includes a plurality of positioning plates, and the positioning plates are radially slidably disposed on the end surface of the rotating shaft along the rotating shaft, and the positioning plates abut against or cancel abutment against the inner wall of the through hole after sliding.

[0008] Optionally, a keyway is provided on the inner wall of the through hole, and a limiting portion is provided on the feeding tube, and the limiting portion has the same cross-sectional shape as the keyway.

[0009] Optionally, it also includes a push piece and a push rod, wherein the push rod is slidably disposed in the feeding tube, and the push piece is rotatably disposed at the end of the push rod. After the push piece slides, the push piece abuts against or cancels the abutment against the inner wall of the positioning plate to push the positioning plate outward.

[0010] Optionally, it also includes a material unloading push plate, which is slidably arranged on the processing sliding frame. After sliding, the material unloading push plate abuts or cancels the abutment on the processed gear, so as to provide a force to move the processed gear away from the positioning member.

[0011] Optionally, a collection box is further included, wherein the collection box is disposed on the frame, the collection box is located below the positioning member, and an angle is formed between the bottom wall of the collection box and the horizontal plane.

[0012] Optionally, a filter is also included, and the filter is arranged on the edge of the collection box.

[0013] Optionally, a conveyor belt is further included, wherein the conveyor belt is arranged on the frame and is located below the positioning member.

[0014] Optionally, the surface of the conveyor belt has a buffer layer.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In order to realize automatic feeding, a feeding tube is added, and multiple gear blanks are pre-mounted on the feeding tube using the through hole in the center of the gear blank. During operation, the rotating shaft and the feeding slide frame are on the same axis, and the feeding slide frame first slides toward the rotating shaft until the feeding tube abuts the positioning piece. Then the feeding push plate slides, pushing the gear blank to move toward the positioning piece. The gear blank located at the outermost side of the feeding tube is pushed and slides outward onto the positioning piece, and the positioning piece fixes the gear blank. Then the feeding tube retracts to make way for processing. Finally, the feed frame slides toward the direction where the gear blank is located and slides to the processing position. The rotating gear hobbing cutter contacts the gear blank. The feeding of the gear hobbing cutter is controlled by the sliding of the feed frame to perform gear hobbing processing. After completing the processing of a gear, the processing slide frame slides away from the gear hobbing cutter to unload. The above feeding action is repeated each time a gear is processed until the gear blank preset on the feeding tube is processed, thereby realizing automatic feeding of the gear hobbing machine. After each gear is processed, frequent manual feeding is no longer required, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0018] Figure 1 The figure is a schematic diagram of the appearance structure of a high-precision gear hobbing machine capable of realizing automatic feeding;

[0019] Figure 2 This is a schematic diagram of the structure of the processing sliding frame in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the feeding sliding frame in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the top member in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the gear blank in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the gear in the utility model.

[0024] In the figure: 1. through hole, 2. gear blank, 3. frame, 4. processing slide frame, 5. rotating shaft, 7. loading slide frame, 8. loading pipe, 9. loading push plate, 10. feeding frame, 11. gear hobbing cutter, 12. positioning plate, 13. keyway, 14. limiting part, 15. ejector, 16. ejector rod, 17. unloading push plate, 18. collecting box, 19. filter screen, 20. conveyor belt. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0026] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0027] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] Example 1

[0030] Reference Figure 1 to Figure 6 , which is the first embodiment of the utility model, proposes a high-precision gear hobbing machine capable of automatic feeding, which is used for gear hobbing a gear blank 2 with a through hole 1 in the center, including a frame 3, a processing slide frame 4, a rotating shaft 5, a positioning member, a feeding slide frame 7, a feeding tube 8, a feeding push plate 9, a feeding frame 10 and a gear hobbing cutter 11, wherein the gear hobbing cutter 11 is rotatably arranged on the feeding frame 10, the feeding frame 10 is slidably arranged on the frame 3, the processing slide frame 4 is slidably arranged on the frame 3, the sliding direction of the processing slide frame 4 is parallel to the sliding direction of the feeding frame 10, and the processing slide frame 4 moves away from or close to the gear hobbing cutter 11 after sliding, the rotating shaft 5 is rotatably arranged on the processing slide frame 4, and the positioning member is arranged on the rotating shaft 5, which is used to fix the gear blank 2,

[0031] The feeding slide frame 7 is slidably arranged on the frame 3, the feeding tube 8 is arranged on the feeding slide frame 7, the through hole 1 is sleeved on the feeding tube 8, and is used to install the gear blank 2. After the feeding slide frame 7 slides, the end of the feeding tube 8 abuts against or cancels the abutment against the positioning member, and the feeding push plate 9 is slidably arranged on the feeding slide frame 7. After sliding, the feeding push plate 9 is used to push the gear blank 2 to the positioning member.

[0032] In this embodiment, in order to realize automatic feeding, a feeding tube 8 is added, and multiple gear blanks 2 are pre-mounted on the feeding tube 8 by using the through hole 1 in the center of the gear blank 2. During operation, the rotating shaft 5 and the feeding slide frame 7 are on the same axis, and the feeding slide frame 7 first slides in the direction of the rotating shaft 5 until the feeding tube 8 abuts the positioning member. Then the feeding push plate 9 slides to push the gear blank 2 to move toward the positioning member, and the gear blank 2 located at the outermost side of the feeding tube 8 is pushed and slides outward to the positioning member, and the positioning member fixes the gear blank 2. Then the feeding tube 8 retracts to make way for processing. Finally, the feeding frame 10 slides in the direction of the gear blank 2 and slides to the processing position. The rotating gear hobbing cutter 11 contacts the gear blank 2. The feeding of the gear hobbing cutter 11 is controlled by the sliding of the feeding frame 10 to perform gear hobbing processing. After completing the processing of a gear, the processing slide frame 4 slides in the direction away from the gear hobbing cutter 11 to unload. The above feeding action is repeated each time a gear is processed until the gear blank 2 preset on the feeding tube 8 is processed, thereby realizing automatic feeding of the gear hobbing machine. After each gear is processed, frequent manual feeding is no longer required, thereby improving processing efficiency.

[0033] The positioning member includes a plurality of positioning plates 12 , and the positioning plates 12 are radially slidably disposed on the end surface of the rotating shaft 5 . After sliding, the positioning plates 12 abut against or cancel the abutment against the inner wall of the through hole 1 .

[0034] In this embodiment, the positioning member includes a plurality of positioning plates 12, preferably three positioning plates 12, all of which are slidably arranged on the end surface of the rotating shaft 5 along the radial direction of the rotating shaft 5, and the sliding of the plurality of positioning plates 12 is synchronous. The plurality of positioning plates 12 are all arc-shaped plates, which can fit the arc of the through hole 1 after being stretched to achieve stable positioning.

[0035] A keyway 13 is formed on the inner wall of the through hole 1 , and a limiting portion 14 is provided on the feeding tube 8 . The limiting portion 14 has the same cross-sectional shape as the keyway 13 .

[0036] In this embodiment, in order to ensure the stability of the gear blank 2 on the feeding tube 8, a limiting portion 14 is also designed on the feeding tube 8. The limiting portion 14 has the same shape as the keyway 13 in the through hole 1, and the overall cross-sectional shape of the feeding tube 8 is the same as the cross-sectional shape of the through hole 1. The limiting portion 14 is used to provide circumferential positioning for the gear blank 2, thereby preventing the gear blank 2 from rotating, thereby improving the stability of the gear blank 2 on the feeding tube 8.

[0037] It also includes a top piece 15 and a top rod 16. The top rod 16 is slidably disposed in the feeding tube 8. The top piece 15 is rotatably disposed at the end of the top rod 16. After the top piece 15 slides, the top piece 15 abuts against or cancels the abutment against the inner wall of the positioning plate 12 to push the positioning plate 12 outward.

[0038] In this embodiment, in order to control the synchronous sliding of multiple positioning plates 12, a push rod 16 is slidably provided along the axial direction of the feeding tube 8. A push piece 15 is rotatably provided at the end of the push rod 16. The push piece 15 is in a conical shape, and the inner surface of the positioning plate 12 has a taper. After the loading of the gear blank 2 is completed, the push rod 16 is controlled to slide so that the push piece 15 is close to the positioning plate 12. After the push piece 15 enters the middle of the multiple positioning plates 12, it abuts against the inner walls of the multiple positioning plates 12. As the push rod 16 slides, the push piece 15 abuts against the multiple positioning plates 12, and the multiple positioning plates 12 are spread open, thereby controlling the positioning plates 12 to abut against the inner wall of the through hole 1, thereby realizing the positioning of the gear blank 2. When processing the gear, the rotating shaft 5 needs to cooperate with the gear hobbing cutter 11 to rotate slowly. At this time, the push piece 15 will rotate accordingly to ensure the stability of the positioning.

[0039] It also includes a material unloading push plate 17, which is slidably disposed on the processing slide frame 4. After sliding, the material unloading push plate 17 abuts against or cancels the abutment against the processed gear, so as to provide a force to move the processed gear away from the positioning member.

[0040] In this embodiment, in order to realize automatic unloading, a material unloading push plate 17 is also slidably provided on the processing slide 4. After completing the processing of a gear, the push rod 16 retracts, cancels the thrust of the push piece 15 on the positioning plate 12, and cancels the positioning of the gear by the positioning plate 12. Then the processing slide 4 is controlled to slide in a direction away from the gear hobbing cutter 11. After leaving the processing position, the material unloading push plate 17 slides, abuts against the gear and pushes the gear off the positioning plate 12, thereby realizing automatic unloading.

[0041] It also includes a collection box 18, which is arranged on the frame 3, and the collection box 18 is located below the positioning member, and an angle is formed between the bottom wall of the collection box 18 and the horizontal plane.

[0042] In this embodiment, in order to avoid high temperature during processing, in the prior art, coolant is usually sprayed to the processing position, and the dripping coolant can fall into the collection box 18 below to achieve the recovery of the coolant. In addition, the debris generated during processing will also fall into the collection box 18 to achieve the recovery of the debris and facilitate subsequent cleaning. The bottom wall of the collection box 18 is designed to be inclined, so that the coolant can automatically flow to the lower part to achieve separation from the iron chips.

[0043] The collecting box 18 further comprises a filter screen 19 , which is arranged at the edge of the collecting box 18 .

[0044] In this embodiment, in order to facilitate the recovery of the coolant, a filter 19 is provided at the lowest edge of the collection box 18, and the coolant can directly pass through the filter 19, and a recovery bucket can be directly provided below the filter 19. The filter 19 will have a blocking effect on the iron filings, and the iron filings will not leave the collection box 18, thereby achieving further separation of the coolant and the iron filings, and the iron filings can be easily cleaned up later.

[0045] It also includes a conveyor belt 20, which is arranged on the frame 3 and is located below the positioning member.

[0046] The surface of the conveyor belt 20 has a buffer layer.

[0047] In this embodiment, in order to further realize the automatic unloading of gears, a conveyor belt 20 is also provided. After completing the processing of a gear, the processing slide frame 4 slides to the top of the conveyor belt 20, and then the unloading push plate 17 pushes the gear off the positioning plate 12 and drops it onto the conveyor belt 20 below, and can be directly transported to the subsequent process for the next step of processing without manual transfer. In order to prevent the surface of the gear from being damaged due to impact when it falls, a flexible buffer belt is also provided on the belt surface of the conveyor belt 20.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-precision gear hobbing machine capable of automatic feeding, used for gear hobbing a gear blank (2) with a through hole (1) in the center, characterized in that: The gear cutting machine comprises a frame (3), a processing slide frame (4), a rotating shaft (5), a positioning member, a feeding slide frame (7), a feeding tube (8), a feeding push plate (9), a feeding frame (10) and a gear hobbing cutter (11), wherein the gear hobbing cutter (11) is rotatably mounted on the feeding frame (10), the feeding frame (10) is slidably mounted on the frame (3), the processing slide frame (4) is slidably mounted on the frame (3), the sliding direction of the processing slide frame (4) is parallel to the sliding direction of the feeding frame (10), the processing slide frame (4) moves away from or close to the gear hobbing cutter (11) after sliding, the rotating shaft (5) is rotatably mounted on the processing slide frame (4), the positioning member is mounted on the rotating shaft (5) and is used to fix the gear blank (2), The feeding slide frame (7) is slidably arranged on the frame (3), the feeding tube (8) is arranged on the feeding slide frame (7), the through hole (1) is sleeved on the feeding tube (8) and is used to install the gear blank (2), after the feeding slide frame (7) slides, the end of the feeding tube (8) abuts against or cancels the abutment against the positioning member, the feeding push plate (9) is slidably arranged on the feeding slide frame (7), and after the feeding push plate (9) slides, it is used to push the gear blank (2) to the positioning member.

2. A high-precision gear hobbing machine capable of automatic feeding according to claim 1, characterized in that: The positioning member comprises a plurality of positioning plates (12), wherein the positioning plates (12) are radially slidably arranged on the end surface of the rotating shaft (5) along the rotating shaft (5), and the positioning plates (12) abut against or cancel abutment against the inner wall of the through hole (1) after sliding.

3. The high-precision gear hobbing machine capable of realizing automatic feeding according to claim 1, characterized in that: The inner wall of the through hole (1) is provided with a keyway (13), and the feeding tube (8) is provided with a limiting portion (14), wherein the limiting portion (14) has the same cross-sectional shape as the keyway (13).

4. A high-precision gear hobbing machine capable of automatic feeding according to claim 2, characterized in that: It also includes a top piece (15) and a top rod (16), wherein the top rod (16) is slidably disposed in the feeding tube (8), and the top piece (15) is rotatably disposed at the end of the top rod (16). After the top piece (15) slides, the top piece (15) abuts against or cancels the abutment against the inner wall of the positioning plate (12), so as to push the positioning plate (12) outward.

5. The high-precision gear hobbing machine capable of realizing automatic feeding according to claim 1, characterized in that: It also includes a material unloading push plate (17), which is slidably disposed on the processing slide frame (4). After sliding, the material unloading push plate (17) abuts against or cancels the abutment against the processed gear, so as to provide a force for the processed gear to move away from the positioning member.

6. The high-precision gear hobbing machine capable of realizing automatic feeding according to claim 1, characterized in that: It also comprises a collection box (18), the collection box (18) being arranged on the frame (3), the collection box (18) being located below the positioning member, and an angle being formed between the bottom wall of the collection box (18) and a horizontal plane.

7. A high-precision gear hobbing machine capable of automatic feeding according to claim 6, characterized in that: It also includes a filter screen (19), wherein the filter screen (19) is arranged on the edge of the collection box (18).

8. The high-precision gear hobbing machine capable of realizing automatic feeding according to claim 1, characterized in that: It also comprises a conveyor belt (20), wherein the conveyor belt (20) is arranged on the frame (3), and the conveyor belt (20) is located below the positioning member.

9. A high-precision gear hobbing machine capable of automatic feeding according to claim 8, characterized in that: The surface of the conveyor belt (20) has a buffer layer.

Images