Tooth surface treatment device for planetary gear machining

Abstract

The invention discloses a planetary gear machining tooth surface processing device which comprises a supporting seat, a fixing base is arranged on a supporting shell, a clamping assembly used for clamping and fixing a planetary gear is arranged on the fixing base, and the clamping assembly is used for detecting the diameter of the planetary gear. A balance assembly used for keeping the heights of the upper surfaces of all the planetary gears placed on the upper portion consistent is arranged on the fixed base, and a lifting assembly used for driving the planetary gears to rise secondarily according to different diameters of the planetary gears is arranged on the fixed base. According to the planetary gear grinding device, planetary gears with different thicknesses can be placed on the fixed base at the same time, the balance assembly can conduct balance adjustment on the planetary gears with different thicknesses, the upper surfaces of all the planetary gears are located at the same height, in this way, the planetary gears with different thicknesses can be ground at the same time, and the use limitation of the device is improved; and the situation that the fixed base is vacant when the planetary gears in the same batch are insufficient is prevented, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of planetary gear processing, and in particular to a tooth surface processing device for planetary gear processing. Background Art

[0002] Planetary gears refer to gear systems that, in addition to being able to rotate around their own axes like fixed-axis gears, also have axes that rotate around the axes of other gears along with the planetary carrier. Rotation around their own axes is called "rotation", and rotation around the axes of other gears is called "revolution", just like the planets in the solar system, hence the name. Simple (single-row) planetary gear mechanisms are the basis of speed change mechanisms. Usually, the speed change mechanisms of automatic transmissions are composed of two or more rows of planetary gear mechanisms. Simple planetary gear mechanisms include a sun gear, several planetary gears and a gear ring, in which the planetary gears are supported by the fixed axis of the planetary carrier, allowing the planetary gears to rotate on the supporting axis.

[0003] After the existing planetary gears are produced and formed, the upper and lower tooth surfaces of the planetary gears need to be polished. Since the upper and lower tooth surfaces of the planetary gears are usually flat, when the planetary gears are polished, a batch of planetary gears are usually placed on a fixed base, and then the fixed base is reciprocated to contact the rotating grinding wheel to achieve polishing. In this way, a batch of planetary gears can be polished at the same time, and the polishing efficiency is high. However, this method of polishing can only be used for planetary gears of the same batch model, and cannot be used for planetary gears of different thicknesses or inconsistent diameters (usually larger planetary gears have more grinding allowances, so even planetary gears with the same thickness have different grinding allowances). In this way, when a batch of planetary gears are not enough to fill a fixed base, many holes on the fixed base will be vacant, resulting in reduced processing efficiency. Summary of the Invention

[0004] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a tooth surface processing device for planetary gear processing, which is used to solve the technical problem proposed in the above background technology that the existing planetary gear grinding device can only grind the tooth surfaces of planetary gears of the same batch of models. When a batch of planetary gears is not enough to fill the fixed base, the empty fixed base will cause the processing efficiency to decrease.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: A tooth surface processing device for planetary gear processing includes a support base, a support shell that performs left-right reciprocating motion is provided above the support base, a grinding mechanism is provided on the support base, a fixed base is provided on the support shell, a clamping assembly for clamping and fixing the planetary gear is provided on the fixed base, and the clamping assembly is used to detect the diameter of the planetary gear, a balancing assembly for maintaining the upper surface height of all planetary gears placed thereon is provided on the fixed base, and a lifting assembly for driving the planetary gear to rise twice according to the different diameters of the planetary gears is provided on the fixed base.

[0006] Preferably, a hydraulic cylinder is provided on the support seat, a pressure plate is provided on the telescopic rod of the hydraulic cylinder, and the pressure plate is provided above the fixed base.

[0007] Preferably, a hydraulic oil tank is provided at the bottom of the fixed base, a plurality of placement grooves are provided on the fixed base, a support plate is provided inside the placement groove, a first insertion rod is provided at the bottom of the support plate, and the first insertion rod is slidably connected to a hole provided inside the fixed base at one end away from the support plate.

[0008] Preferably, the clamping assembly includes sleeve rods, which are arranged in a circular array above the support plate. The sleeve rods are provided with electric telescopic rods, and the electric telescopic rods are provided with a clamping block at one end away from the sleeve rod.

[0009] Preferably, the sleeve rod inner cavity is slidably connected to a push plate, the push plate and the clamping block are connected by a connecting rod, and the multiple sleeve rod inner cavities above the support plate are connected to each other through second connecting pipes.

[0010] Preferably, the balancing assembly includes a fourth connecting pipe, which is arranged below each first plug rod sliding connection hole, and is used to connect the first plug rod sliding connection hole with the hydraulic oil tank connecting pipe, and a solenoid valve is provided on the fourth connecting pipe.

[0011] Preferably, the lifting assembly includes a three-way valve, which is arranged inside the fixed base. One of the sleeve rod cavities on each support plate is connected to the three-way valve through a first connecting pipe, and the three-way valve is connected to the first insertion rod sliding connection hole through a second connecting pipe.

[0012] Preferably, the lifting assembly also includes a second rod, which is slidably connected to a slot opened on the fixed base, and a counterweight block is provided on the upper end platform of the second rod. The sliding connection slot of the second rod is connected to the three-way valve through a fifth connecting pipe, and the three-way valve is connected to the first rod hole through a third connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the planetary gears are placed on a fixed base, the balancing assembly is opened, and then multiple planetary gears are pressed down at the same time. At this time, the balancing assembly will balance the multiple planetary gears. When each gear of the multiple planetary gears is in contact with the pressed plane, the balancing assembly is closed. At this time, the planetary gears can no longer move downward, but the balancing assembly balances the planes above the multiple planetary gears to the same height. At this time, the grinding mechanism can grind the planetary gears, so that planetary gears of different thicknesses can be placed on the fixed base at the same time, and the balancing assembly will balance and adjust the planetary gears of different thicknesses so that the upper surface of each planetary gear is at the same height. In this way, planetary gears of different thicknesses can be ground at the same time, which improves the limitations of equipment use, prevents the fixed base from being idle when there are insufficient planetary gears in the same batch, and improves the overall processing efficiency. When the planetary gear is placed on a fixed base, it is clamped and fixed by a clamping assembly. At this time, the clamping assembly will detect and determine the diameter of the planetary gear (large-diameter planetary gears are more susceptible to various factors and produce processing errors during processing due to their larger size. Therefore, larger gears usually have more machining allowances reserved). After the first grinding of the planetary gear is completed, the planetary gear is lifted a second time by the lifting assembly. The lifting assembly determines the height of the planetary gear based on the diameter of the planetary gear. The larger the diameter, the higher the lifting height. In this way, the gear can be polished a second time through the secondary lifting. The larger the diameter, the more grinding allowance the planetary gear has to ensure the accuracy of the large gear tooth surface grinding. In this way, if planetary gears of different diameters need to be polished with different allowances according to size, the lifting assembly can automatically lift gears of different sizes to different heights according to the diameter of the planetary gear, achieving more refined grinding and further ensuring the accuracy of the equipment that can grind planetary gears of different sizes at the same time.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the side three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed base of the present invention; Figure 4 This is a schematic cross-sectional structural diagram of the fixed base of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the sleeve rod of the present invention; Figure 7 for Figure 4 A in the middle is an enlarged structural diagram; The following are marked in the figure: 1. Support seat; 2. Fixed base; 211. Placement slot; 212. Support plate; 213. First insertion rod; 214. Electric telescopic rod; 215. Sleeve rod; 216. Clamping block; 217. Push plate; 218. Connecting rod; 219. First connecting pipe; 220. Second connecting pipe; 221. Three-way valve; 222. Third connecting pipe; 223. Solenoid valve; 224. Fourth connecting pipe; 225. Fifth connecting pipe; 226. Second insertion rod; 227. Counterweight; 3. Support shell; 4. Grinding mechanism; 5. Hydraulic cylinder; 51. Press plate; 6. Hydraulic oil tank. DETAILED DESCRIPTION

[0016] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0017] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by those skilled in the art to which the present invention pertains. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0019] Please refer to the attached Figure 1-Figure 7A tooth surface processing device for planetary gear processing includes a support base 1, a support shell 3 for left and right reciprocating motion is provided above the support base 1, a grinding mechanism 4 is provided on the support base 1, a fixed base 2 is provided on the support shell 3, a clamping assembly for clamping and fixing the planetary gear is provided on the fixed base 2, and the clamping assembly is used to detect the diameter of the planetary gear, a balancing assembly for maintaining the upper surface height of all planetary gears placed above is provided on the fixed base 2, and a lifting assembly for driving the planetary gear to rise twice according to the different diameters of the planetary gears is provided on the fixed base 2.

[0020] The specific operation process of the present invention is as follows: place the planetary gear in the hole on the fixed base 2, open the balancing assembly, and then press down multiple planetary gears at the same time. At this time, the balancing assembly will adjust the height of each planetary gear according to the thickness of the planetary gear (thicker planetary gears descend, thinner planetary gears rise). When all the planetary gears are in contact with the downward pressing plane, the planes above all the planetary gears are consistent, and the balancing assembly is closed. At this time, the planetary gears will no longer rise and fall through the balancing assembly. The planetary gears are clamped and fixed by the clamping assembly, and then reciprocated left and right on the support base 1 through the support shell 3 (the reciprocating motion of the support shell 3 here can be achieved by the forward and reverse motor in the center of the existing technology and the screw rod. Since it is a relatively mature means in the existing technology, it will not be elaborated in this article), and the polishing mechanism 4 is driven to descend by the cylinder provided on the support base 1 until The grinding wheel fits into the upper surface of the planetary gear, and then the grinding mechanism 4 is started (the grinding mechanism 4 is driven by a servo motor to rotate the grinding wheel, and a spray head is provided on one side of the grinding wheel). The support shell 3 drives the fixed base 2 to reciprocate left and right, and the grinding mechanism 4 grinds the upper surface of the planetary gear on the fixed base 2. When the support shell 3 reciprocates for a set number of times, the grinding mechanism 4 has completed the grinding of the planetary gear. If the grinding accuracy of the planetary gear needs to be improved, the lifting assembly can be opened at this time. The lifting assembly will drive the planetary gear to rise a second time according to the diameter of the planetary gear (the larger the diameter, the higher the rising height of the planetary gear). The grinding mechanism 4 is started again and drives the support shell 3 to reciprocate. At this time, the grinding mechanism 4 grinds the planetary gear for a second time. The planetary gear with a larger diameter has a larger grinding allowance, which can improve the grinding accuracy of larger planetary gears.

[0021] Please refer to Figure 1-Figure 7A hydraulic cylinder 5 is provided on the support seat 1, and a pressure plate 51 is provided on the telescopic rod of the hydraulic cylinder 5. The pressure plate 51 is provided above the fixed base 2, and a hydraulic oil tank 6 is provided at the bottom of the fixed base 2. A plurality of placement grooves 211 are provided on the fixed base 2, and a support plate 212 is provided inside the placement groove 211. A first plug rod 213 is provided at the bottom of the support plate 212, and the first plug rod 213 is slidably connected to the hole provided inside the fixed base 2 at one end away from the support plate 212. The balancing assembly includes a fourth connecting pipe 224, which is provided below the sliding connection hole of each first plug rod 213. The fourth connecting pipe 224 is used for connecting the sliding connection hole of the first plug rod 213 with the hydraulic oil tank 6, and a solenoid valve 223 is provided on the fourth connecting pipe 224.

[0022] Place the planetary gear on the support plate 212, and then open the solenoid valve 223 (the solenoid valve 223 is electronically controlled, and all the solenoid valves 223 are uniformly controlled and opened or closed at the same time). At this time, the hole is connected to the hydraulic oil tank 6 through the fourth connecting pipe 224, and the hydraulic oil tank 6 connects all the fourth connecting pipes 224 to each other, and the first plug 213 is plugged into the hole. A piston is provided at one end. The planetary gear is placed on the support plate 212, and the upper half will extend out of the placement slot 211. At this time, start the hydraulic cylinder 5, and the hydraulic cylinder 5 drives the pressure plate 51 to press down on the fixed base 2 through the telescopic rod. In the initial stage, the pressure plate 51 presses down on the thicker planetary gear. As the pressure plate 51 is pressed down, the thicker planetary gear falls and pushes The first insertion rod 213 at the bottom descends, and the first insertion rod 213 squeezes the hydraulic oil inside the hole where it is located into the hydraulic oil tank 6. The hydraulic oil tank 6 then transports the squeezed hydraulic oil into the hole below the thinner planetary gear through the fourth connecting pipe 224. At this time, the thinner planetary gear will be pushed up by the first insertion rod 213 until the upper surface of all planetary gears contacts the bottom of the pressure plate 51. At this time, the pressure plate 51 can no longer continue to descend and all solenoid valves 223 are closed. At this time, the hole cannot transport the hydraulic oil into the hydraulic oil tank 6 through the fourth connecting pipe 224 or input the hydraulic oil in the hydraulic oil tank 6 into the hole. At this time, the support plate 212 is fixed, and all planetary gears maintain the same upper surface height at this time.

[0023] Please refer to Figure 3-Figure 7The clamping assembly includes a sleeve rod 215, which is arranged in a circular array above the support plate 212. An electric telescopic rod 214 is provided on the sleeve rod 215. A clamping block 216 is provided at one end of the electric telescopic rod 214 away from the sleeve rod 215. A push plate 217 is slidably connected to the inner cavity of the sleeve rod 215. The push plate 217 and the clamping block 216 are connected by a connecting rod 218. The inner cavities of multiple sleeve rods 215 above the support plate 212 are connected to each other through a second connecting pipe 220. The lifting assembly includes a three-way valve 221, which is arranged inside the fixed base 2. Each support plate 212 The inner cavity of one of the upper sleeve rods 215 is connected to the three-way valve 221 through the first connecting pipe 219, and the three-way valve 221 is connected to the sliding connection hole of the first plug rod 213 through the second connecting pipe 220. The lifting assembly also includes a second plug rod 226, which is slidably connected to the slot opened on the fixed base 2. A counterweight block 227 is provided on the upper end platform of the second plug rod 226. The sliding connection slot of the second plug rod 226 is connected to the three-way valve 221 through the fifth connecting pipe 225, and the three-way valve 221 is connected to the hole of the first plug rod 213 through the third connecting pipe 222.

[0024] The three-way valve 221 is also electrically controlled. The three-way valve 221 can be driven uniformly or individually, depending on whether the planetary gear needs secondary grinding. In the initial state, the three-way valve 221 connects the first connecting pipe 219 with the fifth connecting pipe 225. When the planetary gear is placed on the support plate 212, the electric telescopic rod 214 is started. The electric telescopic rod 214 pushes the clamping block 216 to move toward the planetary gear. Each planetary gear is clamped and fixed by four clamping blocks 216, and when the clamping block 216 moves, it drives the push plate 217 to move through the connecting rod 218. The push plate 217 moves A piston is provided on the side. When the push plate 217 moves, the push plate 217 will release the inner cavity space of the sleeve rod 215. When the inner cavity of the sleeve rod 215 is released, the counterweight block 227 presses down the second plug rod 226. The second plug rod 226 is slidably connected to the inner end of the slot hole and a piston is provided. The slot hole and the inner cavity of the sleeve rod 215 are both provided with hydraulic oil. The second plug rod 226 moves downward to transport the hydraulic oil into the inner cavity of the sleeve rod 215 through the fifth connecting pipe 225 and the first connecting pipe 219. Since the size of the inner cavity space of the sleeve rod 215 is determined by the movement of the push plate 217, the smaller the diameter of the planetary gear corresponding to the sleeve rod 215 is, the smaller the diameter of the planetary gear corresponding to the sleeve rod 215 is. 5 The larger the inner cavity, the more hydraulic oil will be injected; when the planetary gear needs to be processed for the second time, the three-way valve 221 is adjusted to connect the fifth connecting pipe 225 with the third connecting pipe 222, and the weight of the counterweight block 227 is much greater than the weight of the planetary gear plus the support plate 212 and the first plug rod 213. Therefore, when the slot is connected to the hole, the counterweight block 227 will press down the second plug rod 226. The second plug rod 226 descends and squeezes the hydraulic oil in the slot into the hole. The increase in hydraulic oil in the hole will push the first plug rod 213 up, thereby driving the planetary gear to perform a second lift, and Since the residual amount of hydraulic oil in the slot hole is determined by the amount of hydraulic oil injected into the sleeve rod 215, the smaller the diameter of the planetary gear, the less residual hydraulic oil will be in the corresponding slot hole, and the lower the height of the planetary gear will rise. Therefore, when the planetary gear is raised for the second time, the planetary gear with a larger diameter rises higher, and the planetary gear with a smaller diameter rises lower. This corresponds to the fact that the larger the diameter of the planetary gear, the larger the machining allowance is. If the planetary gear does not need to be polished for the second time, there is no need to adjust the three-way valve 221, and it can be removed uniformly after the secondary processing of other planetary gears is completed.

[0025] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A tooth surface processing device for planetary gear machining, comprising a support base (1), a support housing (3) for left-right reciprocating motion being provided above the support base (1), a grinding mechanism (4) being provided on the support base (1), and characterized in that: The support shell (3) is provided with a fixed base (2), the fixed base (2) is provided with a clamping assembly for clamping and fixing the planetary gears, and the clamping assembly is used to detect the diameter of the planetary gears, the fixed base (2) is provided with a balancing assembly for maintaining the upper surface height of all the planetary gears placed thereon to be consistent, and the fixed base (2) is provided with a lifting assembly for driving the planetary gears to rise twice according to the different diameters of the planetary gears.

2. The tooth surface processing device for planetary gear machining according to claim 1, characterized in that: A hydraulic cylinder (5) is provided on the support seat (1), a pressing plate (51) is provided on the telescopic rod of the hydraulic cylinder (5), and the pressing plate (51) is provided above the fixed base (2).

3. The tooth surface processing device for planetary gear machining according to claim 1, characterized in that: A hydraulic oil tank (6) is provided at the bottom of the fixed base (2), a plurality of placement grooves (211) are provided on the fixed base (2), a support plate (212) is provided inside the placement groove (211), a first insertion rod (213) is provided at the bottom of the support plate (212), and an end of the first insertion rod (213) away from the support plate (212) is slidably connected to a hole provided inside the fixed base (2).

4. The tooth surface processing device for planetary gear machining according to claim 3, characterized in that: The clamping assembly comprises a sleeve rod (215), the sleeve rod (215) being arranged in a circular array above the support plate (212), an electric telescopic rod (214) being arranged on the sleeve rod (215), and a clamping block (216) being arranged at one end of the electric telescopic rod (214) away from the sleeve rod (215).

5. The tooth surface processing device for planetary gear machining according to claim 4, characterized in that: The inner cavity of the sleeve rod (215) is slidably connected to a push plate (217), and the push plate (217) is connected to the clamping block (216) via a connecting rod (218). The inner cavities of the multiple sleeve rods (215) above the support plate (212) are connected to each other via second connecting pipes (220).

6. The tooth surface processing device for planetary gear machining according to claim 5, characterized in that: The balancing assembly includes a fourth connecting pipe (224), the fourth connecting pipe (224) being arranged below each first plug rod (213) sliding connection hole, the fourth connecting pipe (224) being used for connecting the first plug rod (213) sliding connection hole with the hydraulic oil tank (6) connecting pipe, and the fourth connecting pipe (224) being provided with a solenoid valve (223).

7. The tooth surface processing device for planetary gear machining according to claim 5, characterized in that: The lifting assembly includes a three-way valve (221), which is arranged inside the fixed base (2). The inner cavity of one of the sleeve rods (215) on each of the support plates (212) is connected to the three-way valve (221) through a first connecting pipe (219), and the three-way valve (221) is connected to the sliding connection hole of the first insertion rod (213) through a second connecting pipe (220).

8. The tooth surface processing device for planetary gear machining according to claim 7, characterized in that: The lifting assembly further comprises a second plug rod (226), the second plug rod (226) being slidably connected to a slotted hole provided on the fixed base (2), a counterweight (227) being provided on the upper platform of the second plug rod (226), the sliding slotted hole of the second plug rod (226) being connected to the three-way valve (221) via a fifth connecting pipe (225), and the three-way valve (221) being connected to the hole of the first plug rod (213) via a third connecting pipe (222).

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