Grinding and polishing device for gear machining

Abstract

The utility model belongs to the field of gear machining, and particularly discloses a grinding and polishing device for gear machining, which comprises a machine frame, an upper grinding mechanism and a lower grinding mechanism are arranged on the machine frame, and the lower grinding mechanism comprises a lower grinding disc which is rotatably arranged and a plurality of inner grinding heads which are slidably connected to the lower grinding disc along the radial direction of the lower grinding disc; the upper grinding mechanism comprises an upper grinding disc arranged in a rotating mode and a plurality of outer grinding heads slidably connected to the upper grinding disc in the radial direction of the upper grinding disc. First grinding layers are arranged on the opposite sides of the lower grinding disc and the upper grinding disc correspondingly, the inner grinding head and the outer grinding head each comprise a mounting part and a sliding part slidably connected to the mounting part, the sliding direction of the sliding parts is consistent with the sliding direction of the mounting parts, and second grinding layers are arranged on the sliding parts. By the adoption of the scheme, the problem that gear grinding and polishing efficiency is low due to the fact that the number of gear grinding procedures is large can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of gear processing, and in particular relates to a grinding and polishing device for gear processing. Background Art

[0002] During the gear processing process, the gear surface needs to be polished to make the gear run more smoothly during subsequent use. The existing gear polishing devices all polish the end faces and tooth surfaces on both sides of the gear separately. The gear is usually used as a transmission component when in use, and a through hole needs to be opened at the center of the gear, and the inner wall of the through hole also needs to be polished. That is to say, the existing gear polishing process includes polishing the end faces, tooth surfaces, and inner wall of the through hole on both sides of the gear in turn. There are many polishing processes, and the gear needs to be transferred to the corresponding polishing equipment and re-clamped between the polishing processes, resulting in low gear grinding and polishing efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a grinding and polishing device for gear processing to solve the problem that there are many gear grinding steps and that the gears need to be transferred to the corresponding grinding equipment and re-clamped between each grinding step, resulting in low gear grinding and polishing efficiency.

[0004] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0005] A grinding and polishing device for gear processing comprises a frame, on which an upper grinding mechanism and a lower grinding mechanism are arranged, the lower grinding mechanism comprises a rotatable lower grinding disc and a plurality of inner grinding heads radially slidably connected to the lower grinding disc along the lower grinding disc; the upper grinding mechanism comprises a rotatable upper grinding disc and a plurality of outer grinding heads radially slidably connected to the upper grinding disc along the upper grinding disc; a first grinding layer is arranged on the opposite side of the lower grinding disc and the upper grinding disc, and the inner grinding head and the outer grinding head each comprise a mounting portion and a sliding portion slidably connected to the mounting portion, the mounting portion of the inner grinding head is slidably connected to the lower grinding disc, the mounting portion of the outer grinding head is slidably connected to the upper grinding disc, the sliding direction of the sliding portion is consistent with the sliding direction of the mounting portion, and a second grinding layer is arranged on the sliding portion.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] 1. In this scheme, the upper surface and outer tooth surface of the gear are polished by the upper polishing disc and the outer polishing head of the upper polishing mechanism. At this time, the gear can be clamped from the inside of the gear by multiple inner polishing heads. Since the inner polishing heads are radially slidable along the lower polishing disc, the inner polishing heads can be slid to make them press against the inside of the gear, thereby achieving the purpose of clamping the gear and preventing the outer polishing head from directly driving the gear to rotate and failing to complete the polishing of the outer tooth surface of the gear.

[0008] Correspondingly, the lower surface and the inner side surface of the gear are ground by the lower grinding disc and the inner grinding head of the lower grinding mechanism, and the gear can be clamped from the outside of the gear by multiple outer grinding heads.

[0009] 2. In this solution, the inner grinding head is radially slidably arranged along the lower grinding disc, and the outer grinding head is radially slidably arranged along the upper grinding disc, which can be applied to the grinding of gears of different sizes. Since the outer tooth surface of the gear is not a flat surface, and there may be depressions such as keyways on the inner side of the gear, the inner grinding head and the outer grinding head both include a mounting portion and a sliding portion slidably connected to the mounting portion, and the sliding portion can be extended relative to the mounting portion, which is applicable to the grinding of non-flat surfaces.

[0010] Furthermore, an upper slide plate and a lower slide plate are vertically slidably connected to the frame, and an upper grinding disc and a lower grinding disc are arranged between the upper slide plate and the lower slide plate. The upper grinding disc is rotatably connected to the upper slide plate, and the lower grinding disc is rotatably connected to the lower slide plate.

[0011] Furthermore, the free end of the sliding portion is arc-shaped.

[0012] Furthermore, the mounting portion is detachably connected to a mounting block, the mounting block is slidably connected to a suction cup, and the sliding direction of the suction cup is parallel to the sliding direction of the sliding portion.

[0013] Furthermore, a support rod is vertically slidably connected to the upper edge of the mounting portion.

[0014] Furthermore, the support rod is a telescopic rod.

[0015] Furthermore, pressure sensors are installed on the sliding part and the support rod.

[0016] Furthermore, a dust suction mechanism is also provided on the frame, and the dust suction mechanism includes a plurality of dust suction pipes respectively installed on the upper slide plate and the lower slide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the state of grinding the upper surface and outer tooth surface of the gear in the embodiment of the utility model.

[0019] Figure 3 for Figure 2 Enlarged view of Chinese and foreign grinding heads and their mounting blocks, sliders, and suction cups.

[0020] Figure 4 It is a schematic diagram of the state of grinding the lower surface and inner side surface of the gear in the embodiment of the utility model.

[0021] Figure 5It is a top view of the internal and external grinding heads in the embodiment of the utility model.

[0022] In the figure: 1. upper slide plate; 2. upper grinding disc; 3. support rod; 4. mounting part; 5. sliding part; 6. outer grinding head; 7. spring; 8. mounting block; 9. slider; 10. suction cup; 11. lower slide plate; 12. lower grinding disc; 13. inner grinding head; 14. gear; 15. dust suction pipe. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a grinding and polishing device for gear processing comprises a frame, an upper grinding mechanism and a lower grinding mechanism are arranged on the frame, the lower grinding mechanism comprises a lower slide plate 11 vertically slidably connected to the frame, a lower grinding disc 12 rotatably connected to the lower slide plate 11, and a plurality of inner grinding heads 13 radially slidably connected to the lower grinding disc 12, a cylinder for driving the lower slide plate 11 to slide is installed on the frame, a motor for driving the lower grinding disc 12 to rotate is installed on the lower slide plate 11, and a cylinder for driving the inner grinding head 13 to slide is installed on the lower grinding disc 12.

[0025] The upper grinding mechanism includes an upper slide plate 1 connected to the frame in a vertical sliding manner, an upper grinding disc 2 connected to the upper slide plate 1 in a rotational manner, and a plurality of outer grinding heads 6 connected to the upper grinding disc 2 in a radially sliding manner along the upper grinding disc 2. A cylinder for driving the upper slide plate 1 to slide is installed on the frame, a motor for driving the upper grinding disc 2 to rotate is installed on the upper slide plate 1, and a cylinder for driving the outer grinding head 6 to slide is installed on the upper grinding disc 2. The upper grinding disc 2 and the lower grinding disc 12 are both arranged between the upper slide plate 1 and the lower slide plate 11, and the upper slide plate 1 and the lower slide plate 11 are used to adjust the position height of the upper grinding disc 2 and the lower grinding disc 12 respectively.

[0026] The first polishing layer is provided on the opposite side of the lower polishing disc 12 and the upper polishing disc 2. Specifically, the first polishing layer can be obtained by frosting the upper polishing disc 2 and the lower polishing disc 12, or it can be sandpaper bonded to the upper polishing disc 2 and the lower polishing disc 12. The first polishing layer is used to polish the upper and lower surfaces of the gear 14.

[0027] The inner grinding head 13 and the outer grinding head 6 both include a mounting portion 4 and a sliding portion 5 slidably connected to the mounting portion 4. The mounting portion 4 of the inner grinding head 13 is slidably connected to the lower grinding disc 12, and the mounting portion 4 of the outer grinding head 6 is slidably connected to the upper grinding disc 2. A spring 7 is fixed between the sliding portion 5 and the mounting portion 4. The sliding direction of the sliding portion 5 is consistent with the sliding direction of the mounting portion 4. A second grinding layer is provided on the sliding portion 5. The second grinding layer can be obtained by frosting the surface of the sliding portion 5, or it can be sandpaper bonded to the sliding portion 5. In order to reduce the grinding dead angle, the upper end of the sliding portion 5 of the outer grinding head 6 contacts the upper grinding disc 2, and the lower end of the sliding portion 5 of the inner grinding head 13 contacts the lower grinding disc 12. Combined with Figure 5 As shown, the free end of the sliding portion 5 is arc-shaped in order to facilitate the sliding portion 5 to pass through the tooth surface of the gear 14. In the actual design process, by designing the height of the inner grinding head 13 and the outer grinding head 6, it can be suitable for grinding gears 14 of different thicknesses.

[0028] When in use, the gear 14 is sleeved on the inner grinding head 13 so that the upper end of the inner grinding head 13 does not protrude above the upper surface of the gear 14, so as to avoid interference between the inner grinding head 13 and the upper grinding mechanism. The inner grinding head 13 is slid, and the gear 14 is clamped from the inner side of the gear 14 by multiple inner grinding heads 13. The upper slide plate 1 is slid so that the upper grinding disc 2 contacts the upper surface of the gear 14, and the outer grinding head 6 is slid so that the sliding portion 5 of the outer grinding head 6 and the concave surface between the adjacent teeth of the gear 14 are abutted, and at this time, the spring 7 between the sliding portion 5 and the mounting portion 4 is in a contracted state and has not reached the contraction limit, see Figure 2 The upper grinding disc 2 starts to rotate, and the upper surface of the gear 14 is grinded during the rotation of the upper grinding disc 2. The outer grinding head 6 rotates with the upper grinding disc 2 and grinds the outer tooth surface of the gear 14. When the outer grinding head 6 passes the teeth of the gear 14, the sliding part 5 of the outer grinding head 6 slides relative to the mounting part 4 and retracts into the mounting part 4.

[0029] After the upper surface and outer tooth surface of the gear 14 are polished, first slide the outer polishing head 6 to move it away from the gear 14, then slide the upper slide plate 1 upwards, and when the lower end of the outer polishing head 6 is no longer lower than the lower surface of the gear 14, then slide the outer polishing head 6 again to make the sliding portion 5 of the outer polishing head 6 and the concave surface between the adjacent teeth of the gear 14 abut against each other, and at this time, the spring 7 between the sliding portion 5 and the mounting portion 4 is in a contracted state, so that the gear 14 is clamped. First slide the inner polishing head 13 to move it away from the inner side surface of the gear 14, then slide the lower slide plate 11 to make the lower polishing disc 12 contact the lower surface of the gear 14, and then slide the inner polishing head 13 to make the sliding portion 5 of the inner polishing head 13 abut against the inner side surface of the gear 14, as shown in FIG. Figure 4Then the lower grinding disc 12 is rotated, and the lower surface of the gear 14 is grinded during the rotation of the lower grinding disc 12 , and the inner grinding head 13 rotates with the lower grinding disc 12 and grinds the inner side surface of the gear 14 .

[0030] In another embodiment of the utility model, when grinding the outer tooth surface of the gear 14, in order to prevent the outer grinding head 6 from having too much force when passing through the teeth of the gear 14, and the inner grinding head 13 is only fixed to the inner side of the gear 14 by friction, in this embodiment, the mounting portion 4 is detachably connected with a mounting block 8, and the mounting block 8 is slidably connected with a suction cup 10, and the sliding direction of the suction cup 10 is parallel to the sliding direction of the sliding portion 5. Specifically, the mounting block 8 is slidably connected with a slider 9, and the suction cup 10 is fixed on the slider 9. The mounting block 8 is bolted to the mounting portion 4 of the inner grinding head 13, and a cylinder for driving the slider 9 to slide is installed on the mounting block 8. The suction cup 10 can be selected from a rubber suction cup 10 or an electromagnetic suction cup 10. During the grinding process, by adjusting the position of the suction cup 10, the suction cup 10 is adsorbed on the inner side of the gear 14 to increase the fixing strength of the gear 14. When grinding the inner side of the gear 14, the mounting block 8 can be removed.

[0031] In this embodiment, taking the gear 14 as an external gear 14 as an example, during actual use, when the gear 14 to be ground is an internal gear 14 (i.e., a ring gear), the mounting block 8 can also be bolted to the mounting portion 4 of the external grinding head 6.

[0032] In another embodiment of the present invention, a support rod 3 is vertically slidably connected to the mounting portion 4, and the support rod 3 is a telescopic rod. Specifically, the support rod 3 can be a rod with a telescopic function in the prior art. A micro cylinder is installed on the mounting portion 4 for driving the support rod 3 to slide. In actual use, in order to avoid interference between the upper grinding disc 2 and the inner grinding head 13, the lower grinding disc 12 and the outer grinding head 6, when clamping the gear 14, the upper grinding disc 2 or the lower grinding disc 12 and the gear 14 may not be in contact. The gear 14 is only clamped by the inner grinding head 13 or the outer grinding head 6. In particular, when the upper surface of the gear 14 is polished, the gear 14 will also be affected by its own gravity. For this reason, in this embodiment, through the setting of the support rod 3, when the support rod 3 is not needed, the support rod 3 is retracted to avoid the support rod 3 affecting the polishing. When the support rod 3 is needed to support the gear 14, the support rod 3 is slid to the end face of the gear 14, and then the support rod 3 is extended so that the support rod 3 is supported on the end face of the gear 14.

[0033] In another embodiment of the utility model, pressure sensors are installed on the sliding part 5 and the support rod 3. The pressure sensor can be any sensor in the prior art that can detect pressure signals. Through the setting of the pressure sensor, it is convenient for the staff to monitor the grinding force, clamping force, etc. of the gear 14 to avoid excessive grinding force or squeezing force on the gear 14.

[0034] In another embodiment of the utility model, a dust suction mechanism is further provided on the frame, and the dust suction mechanism includes a plurality of dust suction tubes 15 respectively installed on the upper slide plate 1 and the lower slide plate 11. During actual use, the dust suction tubes 15 can be connected to the vacuum cleaner, and the dust suction tubes 15 are aligned with the gear 14. The dust suction tubes 15 absorb the debris generated during the grinding process of the gear 14 to prevent the debris from remaining on the gear 14 and affecting the clamping.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, 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 purpose 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 grinding and polishing device for gear processing, comprising a frame, characterized in that: An upper grinding mechanism and a lower grinding mechanism are provided on the frame, the lower grinding mechanism comprises a rotatable lower grinding disc and a plurality of inner grinding heads radially slidably connected to the lower grinding disc along the lower grinding disc; the upper grinding mechanism comprises a rotatable upper grinding disc and a plurality of outer grinding heads radially slidably connected to the upper grinding disc along the upper grinding disc; a first grinding layer is provided on the opposite side of the lower grinding disc and the upper grinding disc, the inner grinding head and the outer grinding head each comprise a mounting portion and a sliding portion slidably connected to the mounting portion, the mounting portion of the inner grinding head is slidably connected to the lower grinding disc, the mounting portion of the outer grinding head is slidably connected to the upper grinding disc, the sliding direction of the sliding portion is consistent with the sliding direction of the mounting portion, and a second grinding layer is provided on the sliding portion.

2. The gear grinding and polishing device according to claim 1, characterized in that: An upper slide plate and a lower slide plate are vertically slidably connected to the frame, an upper grinding disc and a lower grinding disc are arranged between the upper slide plate and the lower slide plate, the upper grinding disc is rotatably connected to the upper slide plate, and the lower grinding disc is rotatably connected to the lower slide plate.

3. The grinding and polishing device for gear processing according to claim 1, characterized in that: The free end of the sliding part is arc-shaped.

4. The grinding and polishing device for gear processing according to claim 1, characterized in that: The mounting portion is detachably connected with a mounting block, the mounting block is slidably connected with a suction cup, and the sliding direction of the suction cup is parallel to the sliding direction of the sliding portion.

5. The grinding and polishing device for gear processing according to claim 1, characterized in that: The upper edge of the mounting portion is vertically slidably connected with a support rod.

6. The gear grinding and polishing device according to claim 5, characterized in that: The support rod is a telescopic rod.

7. The gear grinding and polishing device according to claim 5, characterized in that: Pressure sensors are installed on the sliding part and the supporting rod.

8. The gear grinding and polishing device according to claim 2, characterized in that: The frame is also provided with a dust suction mechanism, which comprises a plurality of dust suction pipes respectively installed on the upper slide plate and the lower slide plate.

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