A limiting device for gear machining

Abstract

The utility model relates to gear processing technical field, and disclose a kind of limiting device for gear processing, including base and adjusting assembly being set in the inside of base, limiting assembly is installed on adjusting assembly, the upper surface of base is fixed with collection assembly, gear workpiece is overlapped above collection assembly, the limiting assembly has two, and symmetrically set in the two sides of collection assembly.This kind of limiting device for gear processing, by air pump adjustment air pressure in air cavity, push piston limit rod telescopic along telescopic groove, make the arc-shaped end surface of piston limit rod and the tooth surface of gear contact, and, utilize the elastic buffer and air pressure of spring's precision control, can adapt to different pitch, different diameter gear, without replacing any accessory can be completed to different pitch, different diameter gear limiting, solved the cost problem of " need to manufacture multiple teeth seat in advance", simultaneously avoided the positioning error or equipment damage risk caused by selecting wrong teeth seat.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically a limiting device for gear processing. Background Technology

[0002] Gear machining refers to the process of manufacturing gears using various processing methods. A gear is a mechanical transmission device, usually composed of one or more gears, used to transmit power and change rotational speed. Gears typically have parameters such as the number of teeth, module, and pressure angle, which determine the gear's geometry and transmission characteristics. In practical applications, traditional gear machining often uses specific machining dies to limit the gear's position. For example, a disc-shaped die with internal teeth that matches the gear workpiece is used to limit the gear's position for drilling or stamping. However, in this process, the disc-shaped die has poor adaptability, usually requiring design and manufacturing for gears of specific sizes. Therefore, different disc-shaped dies need to be customized for different gear sizes, which increases costs and makes it difficult to quickly switch dies for different gear sizes, thus limiting the flexibility of the production line.

[0003] An existing patent (publication number: CN222944648U) discloses a limiting device for gear processing, belonging to the field of gear processing. It includes a gear processing base; a rotary motor is mounted on the upper surface of the gear processing base; a rotary shaft is connected to the output end of the rotary motor; a gear processing disc is fitted onto the upper surface of the rotary shaft; a support plate is integrally formed on the upper surface of the gear processing disc; and a gear limiting component is mounted on the upper surface of the support plate. This application, through precise clamping control of two mounting seats, can achieve precise clamping and limiting of gear workpieces of different diameters, thereby achieving stability and accuracy of the gear workpiece during processing. It also improves the adaptability of the equipment to gear workpieces of different sizes and reduces the need for mold changes.

[0004] However, when clamping gear workpieces of different diameters, this application requires changing the tooth holder with the corresponding tooth groove spacing according to the gear workpiece body. It still requires the pre-manufacturing and stocking of tooth holders of various specifications, which increases the cost of spare parts. Furthermore, the wrong tooth holder specification may be selected during the replacement process, which may lead to inaccurate positioning or even damage to the workpiece or equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a limiting device for gear processing, which has the advantages of automatic adaptation to different gears. It solves the problem of needing to pre-manufacture and store various specifications of gear seats to adapt to gear workpieces of different diameters, which leads to increased accessory costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a limiting device for gear processing, comprising a base and an adjustment component disposed inside the base, wherein a limiting component is installed on the adjustment component, a collecting component is fixed on the upper surface of the base, a gear workpiece is attached above the collecting component, and there are two limiting components symmetrically disposed on both sides of the collecting component.

[0007] The limiting component includes a limiting plate, an air pump is installed on the upper surface of the limiting plate, an air cavity is opened inside the limiting plate, the output end of the air pump is connected to the air cavity, a telescopic groove is also opened inside the limiting plate and connected to the air cavity, a piston limiting rod is movably inserted inside the telescopic groove, a first spring is fixed on the side of the piston limiting rod, and the other end of the first spring is fixed to the inner wall of the telescopic groove.

[0008] Furthermore, there are multiple sets of piston limiting rods and first springs, and each set of piston limiting rods can move independently. One end of the piston limiting rod is tightly fitted to the inner wall of the telescopic groove, and the end face of the other end of the piston limiting rod is an arc-shaped surface. An exhaust pipe is provided through the side of the air chamber, and the exhaust pipe is located on the other side corresponding to the piston limiting rod.

[0009] Through the above scheme, multiple sets of independently moving piston limit rods can correspond to different tooth groove positions of the gear, ensuring uniform contact in the circumferential direction of the gear. Furthermore, the arc-shaped end face fits into the curved surface structure of the gear tooth surface, increasing the contact area and improving the limiting stability. This allows the gear to not only adapt to the overall size changes of gears with different diameters, but also to accommodate the slight differences in different tooth grooves of the same gear, further enhancing its versatility.

[0010] Furthermore, a slider is fixed on the lower surface of the limiting plate, and a corresponding groove is provided on the upper surface of the base. The slider moves inside the groove, and the limiting plate moves above the base through the adjustment component, the slider, and the groove. Both the slider and the groove are "T" shaped, and there are two sliders and two grooves, which are symmetrically arranged on the lower surface of the limiting plate.

[0011] Through the above solution, the "T"-shaped slider and groove have strong guiding properties, which can limit the movement of the limiting plate to only the horizontal direction, ensure the precise alignment of the piston limiting rod and the gear tooth surface, improve the coaxiality and stability of the limiting process, prevent the gear from radially running during processing, and ensure processing accuracy.

[0012] Furthermore, the collection assembly includes a placement plate fixed to the upper surface of the base, the gear workpiece overlaps the upper surface of the placement plate, a collection box is provided through the lower surface of the placement plate, a funnel-shaped collection groove is opened on the surface of the placement plate, a limiting groove is opened inside the placement plate, a fixing rod is provided through the limiting groove, a fixing groove corresponding to the fixing rod is opened on the side of the collection box, and one end of the fixing rod is engaged inside the fixing groove.

[0013] The above solution allows the funnel-shaped collection trough to concentrate and guide the debris generated during gear processing into the collection box below, preventing debris from accumulating between the gear and the placement plate, which could affect processing accuracy or contaminate the equipment. At the same time, the collection box is detachable through the elastic snap-fit ​​of the fixing rod and the second spring, which not only ensures the reliability of the fixation during processing but also facilitates quick disassembly and cleaning after processing, thus improving the convenience of equipment maintenance.

[0014] Furthermore, a second spring is sleeved around the outer periphery of the fixing rod, and the two ends of the second spring are respectively fixed to the inner wall of the limiting groove and the side of the fixing rod. A limiting block is also fixed to the side of the placement plate, and the limiting blocks are symmetrically arranged on both sides of the fixing rod.

[0015] With the above solution, the elastic action of the second spring can continuously press the fixing rod into the fixing groove on the side of the collection box when the collection box is not subjected to external force, ensuring that the collection box will not fall off due to vibration or accidental collision during the processing. When replacing the collection box, the fixing rod is pulled out from the fixing groove, and the limiting block restricts the position of the fixing rod, preventing the fixing rod from moving in the opposite direction under the elastic action of the second spring, which would affect the replacement of the collection box.

[0016] Furthermore, the base has a transmission chamber inside, and the adjustment assembly includes a fixing sleeve fixed to the inner wall of the transmission chamber. A motor is sleeved inside the fixing sleeve. A threaded rod is fixed to the output end of the motor. The other end of the threaded rod is rotatably connected to the inner wall of the transmission chamber. A threaded cap is threaded to the surface of the threaded rod. A connecting rod is fixed to the upper surface of the threaded cap. The upper end of the connecting rod is fixed to the lower surface of the limiting plate.

[0017] With the above scheme, when the motor drives the threaded rod to rotate, the threaded cap moves axially along the threaded rod, and through the connecting rod, it drives the limiting plate to move closer to or away from the gear in sync, so as to achieve rapid adaptation of gears of different diameters.

[0018] Furthermore, the upper surface of the base is provided with a movable groove, the transmission chamber is connected to the movable groove, the upper end of the connecting rod passes through the movable groove, there are two threaded rods, two threaded caps and two connecting rods, which are symmetrically arranged on both sides of the motor, and the two limiting components move closer or further away synchronously through the adjustment components.

[0019] With the above scheme, the two limiting components move synchronously through a symmetrical threaded transmission structure, ensuring that the limiting force on the gear is evenly distributed and avoiding gear misalignment or excessive tightness on one side due to asynchronous movement on one side.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: This gear machining limiting device uses an air pump to adjust the air pressure in the air chamber, pushing the piston limiting rod to extend and retract along the telescopic groove. This allows the arc-shaped end face of the piston limiting rod to contact the tooth surface of the gear. Furthermore, by utilizing the elastic buffer of the spring and the precise control of the air pressure, it can adapt to gears with different tooth pitches and diameters. It can limit gears with different tooth pitches and diameters without changing any parts, solving the cost problem of "needing to pre-manufacture multiple tooth holders" and avoiding the risk of positioning errors or equipment damage caused by selecting the wrong tooth holder. Attached Figure Description

[0021] Figure 1 This is a diagram illustrating the overall structure of this application; Figure 2 This is a partial cross-sectional view of the limiting component in this application; Figure 3 For this application Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a partial cross-sectional view of the components collected in this application; Figure 5 For this application Figure 4 Enlarged structural diagram at point B; Figure 6 This is a partial sectional view of the base in this application; Figure 7 This is an overall structural diagram of the gear workpiece under the limiting state in this application; Figure 8 For this application Figure 7 Enlarged structural diagram at point C.

[0022] In the picture: 1. Base; 101. Transmission chamber; 102. Slide groove; 103. Movable groove; 2. Adjustment components; 201. Fixing sleeve; 202. Motor; 203. Threaded rod; 204. Threaded cap; 205. Connecting rod; 3. Limiting assembly; 301. Limiting plate; 302. Slider; 303. Air pump; 304. Air chamber; 305. Telescopic groove; 306. Piston limiting rod; 307. First spring; 4. Collection component; 401. Placement plate; 402. Collection box; 403. Limiting groove; 404. Fixing rod; 405. Fixing groove; 406. Second spring; 407. Limiting block; 5. Gear workpieces. Detailed Implementation

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

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 This embodiment of a gear processing limiting device includes a base 1 and an adjustment assembly 2 disposed inside the base 1. A limiting assembly 3 is installed on the adjustment assembly 2. A collecting assembly 4 is fixed on the upper surface of the base 1, and a gear workpiece 5 is attached above the collecting assembly 4. There are two limiting assemblies 3, which are symmetrically arranged on both sides of the collecting assembly 4. The limiting assembly 3 includes a limiting plate 301, an air pump 303 is installed on the upper surface of the limiting plate 301, an air chamber 304 is opened inside the limiting plate 301, the output end of the air pump 303 is connected to the air chamber 304, and a telescopic groove 305 connected to the air chamber 304 is also opened inside the limiting plate 301. A piston limiter is movably inserted inside the telescopic groove 305. The piston limiting rod 306 has a first spring 307 fixed to its side, and the other end of the first spring 307 is fixed to the inner wall of the telescopic groove 305. The air pressure in the air chamber 304 is adjusted by the air pump 303, which pushes the piston limiting rod 306 to extend and retract along the telescopic groove 305, so that the arc-shaped end face of the piston limiting rod 306 contacts the tooth surface of the gear. Furthermore, by utilizing the elastic buffer of the spring and the precise control of the air pressure, it can adapt to gears with different tooth pitches and diameters. It can limit gears with different tooth pitches and diameters without replacing any parts, solving the cost problem of "needing to pre-manufacture multiple tooth holders" and avoiding the risk of positioning errors or equipment damage caused by selecting the wrong tooth holder.

[0025] Please see Figure 2 , Figure 7 and Figure 8Multiple sets of piston limiting rods 306 and first springs 307 are provided, and each set of piston limiting rods 306 can move independently. One end of the piston limiting rod 306 is tightly fitted to the inner wall of the telescopic groove 305, and the end face of the other end of the piston limiting rod 306 is an arc-shaped surface. An exhaust pipe is provided on the side of the air chamber 304, and the exhaust pipe is located on the opposite side corresponding to the piston limiting rod 306. Multiple sets of independently moving piston limiting rods 306 can correspond to different tooth groove positions of the gear, ensuring uniform contact in the circumferential direction of the gear. Furthermore, the arc-shaped end face fits the curved surface structure of the gear tooth surface, increasing the contact area and improving the limiting stability. This allows it to not only adapt to the overall size changes of gears with different diameters but also accommodate the slight differences in different tooth grooves of the same gear, further enhancing its stability. Versatility; A slider 302 is fixed on the lower surface of the limiting plate 301, and a corresponding groove 102 is provided on the upper surface of the base 1. The slider 302 moves inside the groove 102. The limiting plate 301 moves above the base 1 through the adjustment component 2, the slider 302 and the groove 102. Both the slider 302 and the groove 102 are "T" shaped. There are two sliders 302 and two grooves 102, which are symmetrically arranged on the lower surface of the limiting plate 301. The "T" shaped slider 302 and the groove 102 have strong guiding properties, which can limit the limiting plate 301 to move only in the horizontal direction, ensure the precise alignment of the piston limiting rod 306 and the gear tooth surface, improve the coaxiality and stability of the limiting process, prevent the gear from radially running during processing, and ensure processing accuracy.

[0026] Please see Figure 1 , Figure 4 and Figure 5The collecting component 4 includes a placement plate 401 fixed to the upper surface of the base 1. The gear workpiece 5 rests on the upper surface of the placement plate 401. A collecting box 402 passes through the lower surface of the placement plate 401. A funnel-shaped collecting groove is formed on the surface of the placement plate 401. A limiting groove 403 is formed inside the placement plate 401. A fixing rod 404 passes through the limiting groove 403. A fixing groove 405 corresponding to the fixing rod 404 is formed on the side of the collecting box 402. One end of the fixing rod 404 is engaged inside the fixing groove 405. The funnel-shaped collecting groove can concentrate and guide the debris generated during gear processing to the collecting box 402 below, avoiding the accumulation of debris between the gear and the placement plate 401, which would affect the processing accuracy or contaminate the equipment. At the same time, the collecting box 402 is detachable through the elastic engagement of the fixing rod 404 and the second spring 406, which not only ensures the reliability of the fixation during processing but also facilitates the processing. The quick disassembly and cleaning after operation improves the convenience of equipment maintenance. A second spring 406 is sleeved on the outer periphery of the fixing rod 404. The two ends of the second spring 406 are fixed to the inner wall of the limiting groove 403 and the side of the fixing rod 404, respectively. A limiting block 407 is also fixed to the side of the placement plate 401. The limiting blocks 407 are symmetrically arranged on both sides of the fixing rod 404. The elastic action of the second spring 406 can continuously press the fixing rod 404 into the fixing groove 405 on the side of the collection box 402 when the collection box 402 is not subjected to external force, ensuring that the collection box 402 will not fall off due to vibration or accidental collision during processing. When replacing the collection box 402, the fixing rod 404 is pulled out from the fixing groove 405, and the limiting block 407 restricts the position of the fixing rod 404, preventing the fixing rod 404 from moving in the opposite direction under the elastic action of the second spring 406, which would affect the replacement of the collection box 402.

[0027] Please see Figure 1 and Figure 6The base 1 has a transmission chamber 101 inside. The adjustment assembly 2 includes a fixing sleeve 201 fixed to the inner wall of the transmission chamber 101. A motor 202 is sleeved inside the fixing sleeve 201. A threaded rod 203 is fixed to the output end of the motor 202. The other end of the threaded rod 203 is rotatably connected to the inner wall of the transmission chamber 101. A threaded cap 204 is threadedly connected to the surface of the threaded rod 203. A connecting rod 205 is fixed to the upper surface of the threaded cap 204. The upper end of the connecting rod 205 is fixed to the lower surface of the limiting plate 301. When the motor 202 drives the threaded rod 203 to rotate, the threaded cap 204 moves axially along the threaded rod 203, which drives the connecting rod 205 to rotate. The limiting plate 301 moves synchronously closer to or further away from the gear, enabling rapid adaptation of gears of different diameters. The upper surface of the base 1 has a movable groove 103, and the transmission chamber 101 is connected to the movable groove 103. The upper end of the connecting rod 205 passes through the movable groove 103. There are two threaded rods 203, two threaded caps 204, and two connecting rods 205, which are symmetrically arranged on both sides of the motor 202. The two limiting components 3 move synchronously closer to or further away from the adjusting component 2. The two limiting components 3 move synchronously through the symmetrical threaded transmission structure, ensuring that the limiting force on the gear is evenly distributed, and avoiding gear skew or excessive tightness on one side due to asynchronous movement on one side.

[0028] The working principle of the above embodiment is as follows: First, the device is placed in a suitable position and connected to an external power supply and an external control device. The control device specifically refers to a controller, computer, or other conventional electronic device with control functions. Then, the operator places the gear workpiece 5 on the surface of the placement plate 401. Subsequently, the operator controls the motor 202 to operate through the control device. The motor 202 drives the threaded rod 203 to rotate, and the threaded rod 203 drives the threaded cap 204, which is threaded to it, and the connecting rod 205 fixed to the upper surface of the threaded cap 204 to move, thereby driving the two symmetrically arranged... The adjusting components 2 move closer together, causing one end of the piston limiting rod 306 to approach the gear. Then, the operator controls the air pump 303 to operate through the control equipment, adjusts the air pressure in the air chamber 304, and pushes the piston limiting rod 306 to extend and retract along the telescopic groove 305, so that the arc-shaped end face of the piston limiting rod 306 contacts the tooth surface of the gear, thereby limiting the gear. At the same time, multiple sets of independently moving piston limiting rods 306 can correspond to different tooth groove positions of the gear, ensuring uniform contact in the circumferential direction of the gear. Furthermore, the arc-shaped end face fits the curved surface structure of the gear tooth surface, increasing the contact area and thus improving the limiting stability.

[0029] During gear drilling, debris falls into collection box 402 through a funnel-shaped collection trough. When collection box 402 needs cleaning, the worker simply pulls the fixing rod 404, disengaging one end of the fixing rod 404 from the fixing groove 405. Then, the worker rotates the fixing rod 404 so that it is perpendicular to the limiting plate. The limiting block 407 then restricts the fixing rod 404, preventing it from re-engaging in the fixing groove 405 under the reaction force of the second spring 406. The worker can then pull the collection box 402 to remove it from under the collection trough for cleaning. After cleaning, the worker places the collection box 402 back under the placement plate 401. Then, the worker rotates the fixing rod 404 again so that it is parallel to the limiting rod. Under the rebound force of the second spring 406, the worker can push the fixing rod 404 to move, thus re-engaging one end of the fixing rod 404 in the fixing groove 405, completing the fixation of the collection box 402.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting device for gear processing, comprising a base (1) and an adjusting assembly (2) disposed inside the base (1), characterized in that: The adjustment component (2) is equipped with a limiting component (3), the upper surface of the base (1) is fixed with a collecting component (4), and a gear workpiece (5) is attached above the collecting component (4). There are two limiting components (3), which are symmetrically arranged on both sides of the collecting component (4). The limiting component (3) includes a limiting plate (301), an air pump (303) is installed on the upper surface of the limiting plate (301), an air chamber (304) is opened inside the limiting plate (301), the output end of the air pump (303) is connected to the air chamber (304), a telescopic groove (305) connected to the air chamber (304) is also opened inside the limiting plate (301), a piston limiting rod (306) is movably inserted inside the telescopic groove (305), a first spring (307) is fixed on the side of the piston limiting rod (306), and the other end of the first spring (307) is fixed to the inner wall of the telescopic groove (305).

2. The gear machining limiting device according to claim 1, characterized in that: There are multiple sets of piston limiting rods (306) and first springs (307), and each set of piston limiting rods (306) can move independently. One end of the piston limiting rod (306) is tightly fitted to the inner wall of the telescopic groove (305), and the end face of the other end of the piston limiting rod (306) is an arc-shaped surface.

3. The gear machining limiting device according to claim 1, characterized in that: The lower surface of the limiting plate (301) is fixed with a slider (302), and the upper surface of the base (1) is provided with a corresponding groove (102) for the slider (302). The slider (302) moves inside the groove (102). The limiting plate (301) moves above the base (1) through the adjustment component (2), the slider (302) and the groove (102). The slider (302) and the groove (102) are both "T" shaped. There are two sliders (302) and two grooves (102), which are symmetrically arranged on the lower surface of the limiting plate (301).

4. The gear machining limiting device according to claim 1, characterized in that: The collecting assembly (4) includes a placement plate (401) fixed on the upper surface of the base (1), the gear workpiece (5) overlaps the upper surface of the placement plate (401), a collecting box (402) is provided on the lower surface of the placement plate (401), a funnel-shaped collecting groove is provided on the surface of the placement plate (401), a limiting groove (403) is provided inside the placement plate (401), a fixing rod (404) is provided inside the limiting groove (403), and a fixing groove (405) corresponding to the fixing rod (404) is provided on the side of the collecting box (402), and one end of the fixing rod (404) is engaged inside the fixing groove (405).

5. A limiting device for gear processing according to claim 4, characterized in that: A second spring (406) is sleeved around the outer periphery of the fixing rod (404). The two ends of the second spring (406) are respectively fixed to the inner wall of the limiting groove (403) and the side of the fixing rod (404). A limiting block (407) is also fixed to the side of the placement plate (401). The limiting blocks (407) are symmetrically arranged on both sides of the fixing rod (404).

6. A limiting device for gear machining according to claim 1, characterized in that: The base (1) has a transmission chamber (101) inside. The adjustment component (2) includes a fixing sleeve (201) fixed to the inner wall of the transmission chamber (101). A motor (202) is sleeved inside the fixing sleeve (201). A threaded rod (203) is fixed to the output end of the motor (202). The other end of the threaded rod (203) is rotatably connected to the inner wall of the transmission chamber (101). A threaded cap (204) is threaded to the surface of the threaded rod (203). A connecting rod (205) is fixed to the upper surface of the threaded cap (204). The upper end of the connecting rod (205) is fixed to the lower surface of the limiting plate (301).

7. A limiting device for gear processing according to claim 6, characterized in that: The upper surface of the base (1) is provided with a movable groove (103). The transmission chamber (101) and the movable groove (103) are connected. The upper end of the connecting rod (205) passes through the movable groove (103). There are two threaded rods (203), two threaded caps (204) and two connecting rods (205), which are symmetrically arranged on both sides of the motor (202). The two limiting components (3) move closer or further away synchronously through the adjusting component (2).

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