Mistake-proofing device for machining inner teeth of special-shaped sliding sleeve

Abstract

The utility model relates to the technical field of gearbox gear manufacturing, and discloses a special-shaped sliding sleeve internal tooth processing mistake proofing device which comprises a transition faceplate, a platform is arranged on the transition faceplate and used for placing a sliding sleeve, a detection part is arranged on the transition faceplate and comprises a plurality of detection units, each detection unit comprises an air inlet hole and an airtight hole, the air inlet holes are communicated with the airtight holes, and the airtight holes are communicated with the platform. The orifice of the airtight hole is positioned on the platform and is matched with the positioning surface of the sliding sleeve; the angular limiting part is used for carrying out angular limiting on the sliding sleeve; and the radial limiting part is used for radially limiting the sliding sleeve. Whether a product is in place and is in a forward direction or not is automatically detected through gas pressure, and after the position is completely accurate, subsequent machining operation is started as a precondition, so that deviation between the product and a cutter axis caused by steel chipping between a workpiece and a tool is avoided, the product quality and the machining efficiency are greatly improved, the service life of the cutter is greatly prolonged, and the production cost is reduced. And automatic production of a production line is realized.

Description

Technical Field

[0001] This utility model relates to the field of gearbox gear manufacturing technology, specifically, it is a device for preventing errors in the machining of internal teeth of irregularly shaped sliding sleeves. Background Technology

[0002] The gearbox (also known as the transmission system) is a crucial component of a car's powertrain, primarily used to regulate the transmission of power between the engine and the wheels. It uses different gear ratios to achieve vehicle acceleration, deceleration, and power distribution under varying driving demands. The basic function of a gearbox is to change the gear ratio, thereby maintaining optimal engine efficiency under different speeds and loads. At startup, lower gears provide greater torque to help the car start smoothly; while higher gears reduce engine speed, enabling the car to drive efficiently.

[0003] Sliding sleeves are an indispensable component in the gearbox shifting process. With the rapid pace of automotive model updates, the quality of sliding sleeves has become a major concern. Currently, the market offers an increasing variety of gearboxes, and the dimensional accuracy requirements for sliding sleeves are also rising. Initially, many manufacturers in the industry used only a single disc for positioning to save costs. This often resulted in tool jamming or the internal gear axial accuracy not meeting product requirements after machining. Furthermore, prolonged misalignment between the tool and workpiece during machining also affected tool life. Utility Model Content

[0004] The purpose of this utility model is to provide a fault-prevention device for machining internal teeth of irregularly shaped sliding sleeves, which solves the problems of inaccurate positioning of existing equipment, resulting in interference between the workpiece and the tool and substandard accuracy of the internal teeth of the product.

[0005] This utility model is achieved through the following technical solution: a device for preventing errors in machining the internal teeth of an irregularly shaped sliding sleeve, comprising:

[0006] A transition plate is provided with a platform for placing the sliding sleeve; the transition plate is provided with a detection part, which includes multiple detection units, each of which includes an air inlet and an airtight hole. The air inlet and the airtight hole are connected. The air inlet is arranged radially along the transition plate, and the airtight hole is arranged axially along the transition plate. The opening of the airtight hole is located on the platform and mates with the positioning surface of the sliding sleeve.

[0007] An angular limiting part is installed on the transition disc to limit the angular movement of the sliding sleeve;

[0008] A radial limiting part is installed on the transition disc to radially limit the sliding sleeve.

[0009] To better realize this utility model, the angular limiting part further includes multiple limiting units, each limiting unit including a connecting plate and a positioning block mounted on the connecting plate. The connecting plate is connected to the transition disc, and the positioning block cooperates with the oil groove on the sliding sleeve.

[0010] To better realize this utility model, the radial limiting part further includes a positioning ring and a plurality of mounting feet mounted on the positioning ring. The mounting feet are connected to the transition disc, and the positioning ring cooperates with the circumferential outer wall of the sliding sleeve.

[0011] To better realize this utility model, the number of the detection units is the same as the number of the limiting units, and both are arranged in an alternating circular array.

[0012] To better realize this utility model, the mounting feet and connecting plates are provided with through holes, and the transition plate is provided with threaded holes at corresponding positions. The positioning ring and positioning block are fixed on the transition plate by bolts.

[0013] To better realize this utility model, the transition plate is further provided with a plurality of sliding grooves along the radial direction, and the connecting plate is slidably connected to the sliding grooves.

[0014] To better realize this utility model, the transition plate is further provided with multiple stepped grooves, and the opening of the air inlet is opened on the stepped grooves.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0016] (1) This utility model detects whether the product is in place and in the correct orientation by gas pressure. Once the position is completely accurate, it uses this as a prerequisite to start the subsequent processing operation, which greatly improves product quality, processing efficiency and tool life.

[0017] (2) This utility model can automatically detect whether the tooling is positioned correctly, thereby avoiding the deviation between the product and the tool axis caused by steel cutting between the workpiece and the tooling; and realizes the automated production of the production line. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the working structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the sliding sleeve structure.

[0020] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 4This is a cross-sectional view of the air inlet and airtight hole structure.

[0022] Wherein: 101-positioning block; 102-positioning ring; 103-transition disc; 104-air inlet; 105-airtight hole; 106-sliding groove; 107-step groove; 2-sliding sleeve; 201-oil groove; 202-positioning surface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] This embodiment provides a device for preventing errors in machining the internal teeth of irregularly shaped sliding sleeves, specifically as follows: Figures 1-4 As shown, it includes:

[0027] A transition plate 103 is provided with a platform for placing the sliding sleeve 2. A detection part is provided on the transition plate 103, and the detection part includes multiple detection units. Each detection unit includes an air inlet 104 and an airtight hole 105. The air inlet 104 and the airtight hole 105 are connected. The air inlet 104 is arranged radially along the transition plate 103, and the airtight hole 105 is arranged axially along the transition plate 103. The opening of the airtight hole 105 is located on the platform and cooperates with the positioning surface 202 of the sliding sleeve 2.

[0028] An angular limiting part is installed on the transition plate 103 to limit the angular movement of the sliding sleeve 2;

[0029] A radial limiting part is installed on the transition disc 103 to radially limit the sliding sleeve 2.

[0030] In use, the sliding sleeve 2 is placed into the radial limiting part, which restricts its radial movement. After falling, it contacts the angular limiting part. When the angular limiting part also limits the sliding sleeve 2, the positioning surface 202 will adhere to the platform. At this time, due to the weight of the sliding sleeve 2, the positioning surface 202 blocks the opening of the airtight hole 105, and the entire air circuit is in a pressure-holding state. At this time, pressure is transmitted back to the external controller. Through testing, when the gap between the positioning surface 202 and the platform is 0.03mm, the pressure holding pressure is measured to be 0.12-0.15MPa; this pressure is used as the judgment value. After the sliding sleeve 2 is placed, if the actual pressure value is less than the standard value, then the sliding sleeve 2 may be placed at an angle or there may be burrs between the positioning surface 202 and the platform. If the actual pressure is greater than the standard value, then the sliding sleeve 2 of the same size and specification but of different material may be placed, resulting in increased weight. Therefore, when the actual pressure does not correspond to the standard value, the processing program will not start. If the pressure value meets the standard, then the hydraulic cylinder pushes the transition plate 103 to move upward, so that the sliding sleeve 2 is close to the processing tool, thereby starting the internal gear processing of the sliding sleeve 2. After processing, it can be reset and removed.

[0031] Example 2:

[0032] This embodiment further expands upon the above embodiment by extending the diagonal limiting portion and the radial limiting portion, specifically as follows: Figure 3 As shown, the angular limiting part includes multiple limiting units. Each limiting unit includes a connecting plate and a positioning block 101 mounted on the connecting plate. The connecting plate is connected to the transition disc 103, and the positioning block 101 cooperates with the oil groove 201 on the sliding sleeve 2. Due to the design requirements of the sliding sleeve 2, it has multiple oil grooves 201 at its bottom. Therefore, an equal number of positioning blocks 101 are provided to cooperate with it, thereby achieving angular positioning of the sliding sleeve 2.

[0033] The radial limiting part includes a positioning ring 102 and a plurality of mounting feet mounted on the positioning ring 102. The mounting feet are connected to the transition disc 103, and the positioning ring 102 mates with the outer circumferential wall of the sliding sleeve 2. The height of the mounting feet is set to allow installation space for the angular positioning part, while limiting the middle part of the sliding sleeve 2, raising the center of gravity of the limiting part, and preventing the sliding sleeve 2 from falling off.

[0034] Furthermore, the number of detection units is the same as the number of limiting units, and both are arranged in an alternating circular array. According to the design of the sliding sleeve 2, in this embodiment, the number of limiting units is the same as the number of oil grooves 201, which is three.

[0035] Furthermore, the mounting feet and connecting plate are provided with through holes, and the transition plate 103 is provided with threaded holes at corresponding positions. The positioning ring 102 and the positioning block 101 are fixed to the transition plate 103 using bolts. The bolt connection facilitates subsequent disassembly, maintenance, and replacement of damaged parts.

[0036] Furthermore, the transition disc 103 is provided with a plurality of radial grooves 106, and the connecting plate is slidably connected to the grooves 106. The grooves 106 are provided to further limit the connecting plate, prevent the limiting unit from deflecting, and ensure that it can stably cooperate with the oil groove 201.

[0037] Furthermore, the transition plate 103 is provided with multiple stepped grooves 107, and the opening of the air inlet 104 is formed in the stepped grooves 107. The stepped grooves 107 are provided to facilitate communication between the air inlet 104 and external air-related equipment, thereby improving connection stability.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A device for preventing errors in machining the internal teeth of an irregularly shaped sliding sleeve, characterized in that, include: A transition plate (103) is provided with a platform for placing the sliding sleeve (2); a detection part is provided on the transition plate (103), the detection part includes multiple detection units, the detection unit includes an air inlet (104) and an airtight hole (105), the air inlet (104) and the airtight hole (105) are connected, the air inlet (104) is arranged radially along the transition plate (103), the airtight hole (105) is arranged axially along the transition plate (103), the opening of the airtight hole (105) is located on the platform and cooperates with the positioning surface (202) of the sliding sleeve (2); An angular limiting part is installed on the transition plate (103) and is used to angularly limit the sliding sleeve (2); A radial limiting part is installed on the transition disc (103) to radially limit the sliding sleeve (2).

2. The anti-error device for machining internal teeth of irregularly shaped sliding sleeves according to claim 1, characterized in that: The angular limiting part includes multiple limiting units. Each limiting unit includes a connecting plate and a positioning block (101) mounted on the connecting plate. The connecting plate is connected to the transition disc (103), and the positioning block (101) cooperates with the oil groove (201) on the sliding sleeve (2).

3. The anti-error device for machining internal teeth of irregularly shaped sliding sleeves according to claim 2, characterized in that: The radial limiting part includes a positioning ring (102) and a plurality of mounting feet mounted on the positioning ring (102). The mounting feet are connected to the transition disc (103), and the positioning ring (102) engages with the outer circumferential wall of the sliding sleeve (2).

4. The anti-error device for machining internal teeth of irregularly shaped sliding sleeves according to claim 3, characterized in that: The number of detection units is the same as the number of limiting units, and both are arranged in an alternating circular array.

5. The anti-error device for machining internal teeth of irregularly shaped sliding sleeves according to claim 3, characterized in that: The mounting feet and connecting plates are provided with through holes, and the transition plate (103) is provided with threaded holes at corresponding positions. The positioning ring (102) and positioning block (101) are fixed on the transition plate (103) by bolts.

6. The anti-error device for machining internal teeth of irregularly shaped sliding sleeves according to claim 5, characterized in that: The transition plate (103) is provided with a plurality of grooves (106) along the radial direction, and the connecting plate is slidably connected to the grooves (106).

7. A non-error prevention device for machining internal gears of irregularly shaped sliding sleeves according to any one of claims 1-6, characterized in that: The transition plate (103) is provided with a plurality of stepped grooves (107), and the opening of the air inlet (104) is opened on the stepped grooves (107).

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