A gear hobbing machine with automatic feeding

Abstract

The present invention relates to an automated feeding gear hobbing machine, belonging to the technical field of heat sink processing. The automated feeding gear hobbing machine includes a workbench, a fixed clamping seat is provided on the workbench, a movable clamping seat is slidably provided on the workbench, a driving source is provided on the workbench, and the driving source is used to drive the movable clamping seat toward or away from the fixed clamping seat in a horizontal direction. The fixed clamping seat and the movable clamping seat are both provided with a multi-directional limiting mechanism, and the multi-directional limiting mechanism is used to clamp and limit the workpiece substrate in multiple directions, including vertical and horizontal directions. The present invention has the effect of preventing the workpiece substrate from tilting in the vertical direction during the clamping process, thereby improving processing safety to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of heat sink processing, in particular to an automatic feeding gear hobbing machine. Background Art

[0002] Heat sinks are used to dissipate heat from heat-prone electronic components in electrical appliances. During use, heat from the components is transferred to the heat sink, where it is dissipated to the surrounding environment. Heat sinks are often made of materials with high thermal conductivity, such as aluminum alloy and brass.

[0003] For heat sinks requiring high precision, gear hobbing is often necessary after the gears are skived. A gear hobbing machine primarily consists of a machine body, a worktable, and a tool mechanism mounted on the body. The worktable slides on the body, and a fixture is mounted on the worktable to hold the heat sink substrate. During operation, the fixture secures the heat sink substrate, which is then moved by the worktable. The rotating tool mechanism then further processes the heat sink substrate.

[0004] At present, the tooling fixtures on the gear hobbing machine are mostly clamped on the left and right sides. During the process of being clamped on the left and right sides, the heat sink substrate is easily subjected to force and warped in the vertical direction, posing a safety hazard. Summary of the Invention

[0005] In order to help prevent the workpiece substrate from warping in the vertical direction during the clamping process and improve the processing safety to a certain extent, the present invention provides an automated feeding gear hobbing machine.

[0006] The present invention provides an automatic feeding gear hobbing machine adopts the following technical solution:

[0007] An automated feeding gear hobbing machine includes a workbench, a fixed clamping seat is provided on the workbench, a movable clamping seat is slidably provided on the workbench, a driving source is provided on the workbench, and the driving source is used to drive the movable clamping seat to approach or move away from the fixed clamping seat in the horizontal direction. The fixed clamping seat and the movable clamping seat are both provided with a multi-directional limiting mechanism, and the multi-directional limiting mechanism is used to clamp and limit the workpiece substrate from multiple directions including vertical and horizontal directions.

[0008] Preferably, each of the multi-directional limiting mechanisms includes a clamping portion, which is arranged on a corresponding fixed clamping seat or a movable clamping seat. The sides of the clamping portions on the movable clamping seat and the fixed clamping seat that are close to each other are inclined surfaces, and the distance between the two inclined surfaces increases from top to bottom. The inclined surfaces are used to abut against the workpiece substrate.

[0009] Preferably, each of the multi-directional limiting mechanisms includes a mounting plate, a horizontal abutment plate, a vertical abutment plate and a transmission assembly, the mounting plate is arranged on a corresponding fixed clamping seat or a movable clamping seat, the horizontal abutment plate is slidably passed through the corresponding mounting plate, the sliding direction of the horizontal abutment plate is parallel to the arrangement direction of the fixed clamping seat and the movable clamping seat, the horizontal abutment plate is used to abut against the side of the workpiece substrate, the vertical abutment plate is slidably arranged on the corresponding mounting plate along the vertical direction, the vertical abutment plate is used to abut against the upper surface of the workpiece substrate, and the transmission assembly is used to drive the vertical abutment plate to move toward the workpiece substrate when the horizontal abutment plate slides toward the direction close to the corresponding mounting plate.

[0010] Preferably, the transmission assembly includes a piston ring arranged on a horizontal abutment plate, an airbag arranged on a mounting plate, and an elastic member arranged in the mounting plate. A mounting cavity is provided on the mounting plate, the horizontal abutment plate slides through the mounting cavity, the piston ring is sleeved on the horizontal abutment plate, the piston ring abuts against the inner wall of the mounting cavity, an air passage is provided on the mounting plate, one end of the air passage is connected to the mounting cavity, and the other end is connected to the airbag, the airbag is connected to the vertical abutment plate, and the elastic member is used to push the horizontal abutment plate to move in a direction away from the mounting cavity.

[0011] Preferably, the elastic member includes a first spring disposed in the installation cavity, and the first spring is used to push the horizontal abutting plate to move in a direction away from the installation cavity.

[0012] Preferably, the horizontal abutment plate includes a movable plate and a clamping plate, the movable plate is slidably arranged in the installation cavity, the piston ring is arranged on the movable plate, the clamping plate is slidably arranged on the movable plate along the vertical direction, the clamping plate is located below the vertical abutment plate, and the movable plate is provided with an elastic reset member for driving the clamping plate to reset.

[0013] Preferably, the elastic reset member includes a second spring for driving the clamping plate to reset, one end of the second spring is arranged on the movable plate, and the other end is arranged on the clamping plate. When the vertical abutment plate and the clamping plate are in a disengaged state, the upper surface of the clamping plate is higher than the upper surface of the workpiece substrate.

[0014] Preferably, when the first spring is in a natural state, a surface of the clamping plate close to the workpiece substrate is flush with a surface of the vertical abutting plate close to the workpiece substrate.

[0015] Preferably, the driving source includes a cylinder arranged on the workbench, and the movable clamping seat is connected to the piston rod of the cylinder.

[0016] Preferably, the gear hobbing machine further includes a machine body and a slide, wherein the slide is slidably arranged on the machine body, the workbench is arranged on the slide, and a driving member is arranged on the machine body, wherein the driving member is used to drive the slide to drive the workbench to move toward or away from the tool on the machine body.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] During operation, the workpiece substrate is placed between the fixed clamping seat and the movable clamping seat, and then the movable clamping seat is driven by the driving source to move toward the direction close to the fixed clamping seat, and the multi-directional limiting mechanism on the mobile clamping seat abuts the workpiece substrate, and the workpiece substrate abuts against the multi-directional limiting mechanism of the fixed clamping seat, so that the workpiece substrate is clamped and limited by the multi-directional limiting mechanisms on both sides. Since the multi-directional limiting mechanism can limit the workpiece substrate in multiple directions including vertical and horizontal directions, it helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving the processing safety to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of the workbench in Example 1 of the present invention.

[0021] Figure 3 It is a plan view of the overall structure of the workbench in Example 1 of the present invention.

[0022] Figure 4 It is a schematic diagram of the overall structure of the workbench in Example 2 of the present invention.

[0023] Figure 5 It is a cross-sectional view of the overall structure of the mounting plate in Example 2 of the present invention.

[0024] Explanation of the accompanying drawings: 1. Workbench; 2. Fixed clamping seat; 3. Movable clamping seat; 31. Sub-seat; 4. Driving source; 5. Clamping part; 6. Mounting plate; 7. Horizontal abutment plate; 71. Movable plate; 72. Clamping plate; 8. Vertical abutment plate; 9. Piston ring; 10. Airbag; 11. Mounting cavity; 12. First spring; 13. Second spring; 14. Machine body; 15. Slide; 16. Support seat; 17. Pad; 18. Guide rail; 19. Limiting plate; 20. Positioning groove; 21. Groove; 22. Slide; 23. Slider; 24. Support plate; 25. Airway. DETAILED DESCRIPTION

[0025] The following combination Figure 1-Figure 5 The present invention is described in further detail.

[0026] Example 1:

[0027] The embodiment of the present invention discloses an automatic feeding gear hobbing machine. Figure 1 The automated feeding gear hobbing machine includes a machine body 14, a slide 15 and a workbench 1. The slide 15 is slidably mounted on the machine body 14. The length direction of the slide 15 is perpendicular to the axial direction of the tool on the machine body 14, and the sliding direction of the slide 15 is parallel to the length direction of the slide 15. The workbench 1 is fixed to the slide 15 by bolts.

[0028] Reference Figure 1 and Figure 2 A fixed clamping seat 2 is fixed on the workbench 1 by bolts, and a support seat 16 is fixed on the workbench 1. The upper surface of the support seat 16 is lower than the upper surface of the fixed clamping seat 2. The support seat 16 is used to place the workpiece, and a movable clamping seat 3 is slidingly arranged on the workbench 1, and the support seat 16 is located between the movable clamping seat 3 and the fixed clamping seat 2, and the upper surface of the movable clamping seat 3 is higher than the upper surface of the support seat 16. The sliding direction of the movable clamping seat 3 is parallel to the length direction of the workbench 1, and the arrangement direction of the movable clamping seat 3 and the fixed clamping seat 2 is parallel to the length direction of the workbench 1; a driving source 4 is provided on the workbench 1, and the driving source 4 is used to drive the movable clamping seat 3 to approach or move away from the fixed clamping seat 2 in the horizontal direction, and a multi-directional limiting mechanism is provided on the fixed clamping seat 2 and the movable clamping seat 3, which is used to clamp and limit the workpiece substrate from multiple directions including vertical and horizontal directions.

[0029] During operation, the workpiece substrate is placed on the support seat 16, and then the driving source 4 is used to drive the mobile clamping seat 3 to move toward the direction close to the fixed clamping seat 2, and the multi-directional limiting mechanism on the mobile clamping seat 3 is used to abut the workpiece substrate, and the workpiece substrate is abutted against the multi-directional limiting mechanism of the fixed clamping seat 2, so that the workpiece substrate is clamped and limited by the multi-directional limiting mechanisms on both sides. Since the multi-directional limiting mechanism can limit the workpiece substrate in multiple directions including vertical and horizontal directions, it helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving the processing safety to a certain extent.

[0030] Reference Figure 1The machine body 14 is provided with a drive element, which is used to drive the slide 15 and the workbench 1 to move toward or away from the tool on the machine body 14. Specifically, the drive element includes a support, a motor, and a screw. The support is fixed to the machine body 14, and the motor is fixedly mounted on the slide 15. The screw is rotatably mounted on the slide 15, with the screw's rotation axis parallel to the sliding direction of the slide 15. The screw is coaxially fixed with the output shaft of the motor, and the screw thread is threaded through the support. The motor drives the screw to rotate, and the screw and the support thread cooperate, causing the screw and the support to move relative to each other, thereby driving the slide 15 and the workbench 1 to slide, automatically feeding the tool for processing. This is simple, convenient, labor-saving, and highly safe. The motor is controlled by an external PLC controller, which helps to improve processing automation. In other embodiments, the support, motor, and screw can be replaced by an electric cylinder, electric push rod, etc. mounted on the machine body 14. The electric cylinder or electric push rod can also achieve automatic feeding of the slide 15 and the workbench 1.

[0031] Reference Figure 2 In order to facilitate the limiting clamping of the workpiece substrate in multiple directions such as vertical and horizontal directions, each multi-directional limiting mechanism includes a clamping part 5, which is integrally formed on the corresponding movable clamping seat 3 or the fixed clamping seat 2, and the two clamping parts 5 are respectively located on the side where the movable clamping seat 3 and the fixed clamping seat 2 are close to each other. The side where the clamping parts 5 on both sides are close to each other is an inclined surface, and the distance between the two inclined surfaces increases from top to bottom. The inclined surface is used to abut against the workpiece substrate.

[0032] When it is necessary to clamp the workpiece substrate, the driving source 4 is used to drive the mobile clamping seat 3 to move toward the support seat 16, and the inclined surface of the clamping part 5 on the mobile clamping seat 3 gradually makes the workpiece substrate abut against the inclined surface of the clamping part 5 of the fixed clamping seat 2, so that the workpiece substrate is clamped by the clamping part 5 with inclined surfaces on both sides. Since the inclined surface of the clamping part 5 can block the upward and horizontal movement of the workpiece substrate, the workpiece substrate is limited in multiple directions vertically and horizontally, which helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving processing safety; at the same time, it can also be applied to workpiece substrates of different thicknesses.

[0033] Reference Figure 2 and Figure 3To facilitate the installation of the mobile clamping seat 3, a backing plate 17 is bolted to the workbench 1. A guide rail 18 is fixed to the backing plate 17. The lower end of the mobile clamping seat 3 slides with the guide rail 18, which helps guide the sliding of the mobile clamping seat 3. To facilitate adapting to workpiece substrates of different sizes and saving energy, the mobile clamping seat 3 can include multiple sub-seats 31. The arrangement direction of the multiple sub-seats 31 is perpendicular to the length direction of the workbench 1. The guide rails 18 correspond to the sub-seats 31 one by one, and the lower ends of the sub-seats 31 slide with the corresponding guide rails 18. In this embodiment of the present invention, three sub-seats 31 are provided. In other embodiments, the number of sub-seats 31 can be set as needed.

[0034] Reference Figure 2 and Figure 3 In order to facilitate the movement of the mobile clamping seat 3, a support plate 24 is fixed on the pad 17. The support plate 24 is located on the side of the mobile clamping seat 3 away from the support seat 16. The driving source 4 includes a cylinder, which is fixedly mounted on the support plate 24. The mobile clamping seat 3 is fixedly connected to the piston rod of the cylinder; further, the cylinder corresponds one-to-one to the sub-seat 31, and the sub-seat 31 is fixedly connected to the piston rod of the corresponding cylinder. The cylinder is controlled by an external PLC controller, which helps to improve processing automation.

[0035] During operation, a corresponding number of cylinders are activated according to the size of the workpiece substrate, and the corresponding sub-seats 31 are driven to move by the cylinders to clamp the workpiece substrate; when processing small workpiece substrates, the use of cylinders can be reduced, thereby saving energy consumption.

[0036] Reference Figure 2 and Figure 3 To facilitate the installation of the pad 17, limit plates 19 are installed on both sides of the workbench 1 by screws. The pad 17 is located between the two limit plates 19 and abuts against the limit plates 19 on both sides. By setting the limit plates 19, the pad 17 can be quickly and accurately installed on the workbench 1.

[0037] Reference Figure 2 and Figure 3 Since the heat sink substrate typically has a positioning boss on its bottom, a positioning groove 20 is defined on the upper surface of the support base 16 to facilitate positioning. This positioning groove 20 is generally larger than the positioning boss on the bottom of the heat sink substrate. The positioning groove 20 extends through opposite sides of the support base 16, with the direction of penetration perpendicular to the arrangement of the fixed clamping base 2 and the movable clamping base 3. When placing the heat sink substrate, the boss on the bottom of the heat sink substrate is placed in the positioning groove 20 within the support base 16, thereby ensuring a certain positioning of the heat sink substrate.

[0038] The implementation principle of Example 1 of the present invention is as follows: when working, the workpiece substrate is placed on the support seat 16, and then the cylinder is started to drive the corresponding sub-seat 31 to move toward the direction close to the support seat 16, and the inclined surface of the clamping part 5 on the mobile clamping seat 3 gradually abuts the workpiece substrate against the inclined surface of the clamping part 5 of the fixed clamping seat 2, thereby clamping the workpiece substrate through the clamping part 5 with inclined surfaces on both sides. Since the inclined surface of the clamping part 5 can block the upward and horizontal movement of the workpiece substrate, the workpiece substrate is limited in multiple directions vertically and horizontally, which helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving the processing safety to a certain extent; at the same time, it can also be applied to workpiece substrates of different thicknesses.

[0039] Example 2:

[0040] Reference Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that: each multi-directional limiting mechanism includes a mounting plate 6, a horizontal abutment plate 7, a vertical abutment plate 8 and a transmission assembly, the mounting plate 6 is welded and fixed to the corresponding fixed clamping seat 2 or the movable clamping seat 3, and the two mounting plates 6 are respectively located on the side where the fixed clamping seat 2 and the movable clamping seat 3 are close to each other, the lower surface of the mounting plate 6 is lower than the upper surface of the support seat 16, and the support seat 16 is located between the mounting plates 6 on both sides; specifically, the mounting plate 6 is an inverted L-shape, and the horizontal distance from the side of the upper end of the mounting plate 6 close to the support seat 16 to the center of the support seat 16 is smaller than the horizontal distance from the side of the lower end of the mounting plate 6 close to the support seat 16 to the center of the support seat 16.

[0041] Reference Figure 4 and Figure 5 A mounting cavity 11 is provided on one side of the mounting plate 6 close to the support seat 16. The mounting cavity 11 is located at the lower end of the mounting plate 6. The horizontal abutment plate 7 is slidably penetrated into the mounting cavity 11. The horizontal abutment plate 7 includes a movable plate 71 and a clamping plate 72. The movable plate 71 is slidably penetrated into the mounting cavity 11. The sliding direction of the movable plate 71 is parallel to the arrangement direction of the fixed clamping seat 2 and the movable clamping seat 3. The clamping plate 72 is arranged on the movable plate 71. The lower surface of the clamping plate 72 is lower than the upper surface of the support seat 16. The clamping plate 72 is used to abut against the side of the workpiece substrate, so that the workpiece substrate can be limited in the horizontal direction.

[0042] Reference Figure 4 and Figure 5The vertical abutment plate 8 is slidably connected to the upper end of the mounting plate 6 in the vertical direction. The vertical abutment plate 8 and the top end of the mounting plate 6 are slidably connected by the cooperation of the guide block and the guide groove. Specifically, the vertical abutment plate 8 is L-shaped and is located above the clamping plate 72. The vertical abutment plate 8 is used to abut the upper surface of the workpiece substrate, thereby facilitating the vertical positioning of the workpiece substrate. The transmission assembly is used to drive the vertical abutment plate 8 toward the workpiece substrate when the movable plate 71 slides toward the bottom wall of the corresponding mounting cavity 11. The thickness of the workpiece substrate is always less than or equal to the vertical distance from the upper surface of the clamping plate 72 to the upper surface of the support seat 16.

[0043] When the movable clamping seat 3 moves toward the direction close to the support seat 16, the clamping plate 72 on the movable clamping seat 3 will abut the workpiece substrate so that it fits with the clamping plate 72 on the fixed clamping seat 2. As the movable clamping seat 3 continues to approach the support seat 16, the movable plate 71 will move toward the direction close to the bottom wall of the corresponding mounting cavity 11. At this time, the vertical abutment plate 8 is driven by the transmission component to move toward the workpiece substrate until the vertical abutment plate 8 abuts against the upper surface of the workpiece substrate, thereby realizing multi-directional limitation of the workpiece substrate in the vertical and horizontal directions, which helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving processing safety; at the same time, it can also be applied to workpiece substrates of different thicknesses.

[0044] Reference Figure 4 and Figure 5 , in order to facilitate the sliding of the movable plate 71 toward the bottom wall of the corresponding mounting cavity 11, the vertical abutment plate 8 is driven to move toward the workpiece substrate; a groove 21 is provided on the mounting plate 6, the opening of the groove 21 is set downward and aligned with the lower end of the vertical abutment plate 8, the volume of the groove 21 is smaller than the volume of the mounting cavity 11, the transmission assembly includes a piston ring 9, an airbag 10 and an elastic member, the piston ring 9 is fixedly sleeved on the outer wall of the movable plate 71, the piston ring 9 abuts against the inner wall of the mounting cavity 11, and the gas can be adjusted by the movement of the movable plate 71; the airbag 10 is movably arranged in the groove 21, and the lower end of the airbag 10 is fixedly connected to the vertical abutment plate 8, so that the vertical abutment plate 8 can be driven to move according to the expansion or contraction of the airbag 10; an air channel 25 is opened in the mounting plate 6, one section of the air channel 25 is connected to the mounting cavity 11, and the other end is connected to the airbag 10 in the groove 21, thereby helping the movable plate 71 to adjust the amount of gas in the airbag 10 during the movement; an elastic member is arranged in the mounting cavity 11, and the elastic member is used to push the movable plate 71 to move in a direction away from the bottom wall of the mounting cavity 11.

[0045] Reference Figure 4 and Figure 5When the cam 72 is in the unlocked position, the first spring 12 is in the unlocked position, and the second spring 12 is in the unlocked position, so that the cam 72 can slide in the unlocked position.

[0046] When the movable clamping seat 3 moves toward the direction close to the support seat 16, the clamping plate 72 on the movable clamping seat 3 will abut the side of the workpiece substrate and make the other side of the workpiece substrate abut the clamping plate 72 on the fixed clamping seat 2. As the movable clamping seat 3 continues to approach the support seat 16, the movable plate 71 will move toward the direction close to the bottom wall of the corresponding mounting cavity 11. At this time, the movable plate 71 squeezes the air in the mounting cavity 11 into the corresponding airbag 10, driving the airbag 10 to expand rapidly and drive the vertical abutment plate 8 to move downward until the vertical abutment plate 8 abuts against the upper surface of the workpiece substrate. At this time, the air in the mounting cavity 11 and the air in the airbag 10 are balanced, and the movable plate 71 can no longer squeeze the air, thereby realizing multi-directional limitation of the workpiece substrate in the vertical and horizontal directions, which helps to prevent the workpiece substrate from being lifted in the vertical direction during the clamping process, thereby improving processing safety; at the same time, it can also be suitable for workpiece substrates of different thicknesses.

[0047] Reference Figure 4 and Figure 5 The cam 72 is fixed on the movable plate 71 so as to slide in the movable plate 71, and the cam 72 is provided with a sliding groove 22 on the side of the movable plate 71. The movable plate 71 is fixed with a slider 23, and the slider 23 slides with the corresponding sliding groove 22. The cross-section of the slider 23 and the sliding groove 22 is set as needed to ensure that the movable plate 71 and the clamping plate 72 will not be separated, thereby guiding the sliding of the clamping plate 72; the movable plate 71 is provided with an elastic reset member for driving the clamping plate 72 to reset.

[0048] Reference Figure 4 and Figure 5To facilitate the reset of the clamping plate 72, the elastic reset member includes a second spring 13. The second spring 13 is located within the slide groove 22 and below the slider 23. One end of the second spring 13 is fixed to the bottom wall of the slider 23, and the other end is fixed to the lower end of the slide groove 22. When the second spring 13 is in its natural state, the upper surface of the clamping plate 72 is higher than the upper surface of the movable plate 71. At this time, the upper surface of the clamping plate 72 is close to the lower end of the vertical abutment plate 8.

[0049] Reference Figure 4 and Figure 5 When the first spring 12 is in the natural state, the side of the clamping plate 72 close to the workpiece substrate is flush with the side of the vertical abutment plate 8 close to the workpiece substrate, and the horizontal distance from the side of the movable plate 71 close to the support seat 16 to the center of the support seat 16 is smaller than the horizontal distance from the side of the lower end of the mounting plate 6 close to the support seat 16 to the center of the support seat 16; when the side of the movable plate 71 close to the support seat 16 is flush with the side of the lower end of the mounting plate 6 close to the support seat 16, the lower end of the vertical abutment plate 8 is close to the lower end of the mounting plate 6, thereby ensuring that the workpiece substrates of different thicknesses can be clamped and limited.

[0050] When the workpiece substrate is in the detached state, the side of the clamping plate 72 close to the workpiece substrate is flush with the side of the vertical abutment plate 8 close to the workpiece substrate, so that the upper end of the mounting plate 6 will not protrude from the clamping plate 72, which facilitates the placement of the workpiece substrate and does not interfere with the upper end of the mounting plate 6; when the movable plate 71 is relatively close to the bottom wall of the corresponding mounting cavity 11, the movable plate 71 will squeeze the air in the mounting cavity 11 into the corresponding airbag 10, quickly driving the airbag 10 to expand and drive the vertical abutment plate 8 to move downward, because the upper surface of the workpiece substrate When the workpiece is in a state of being moved along the workpiece, the upper surface of the workpiece substrate 72 is flush with the upper surface of the workpiece substrate, and the air in the installation cavity 11 is balanced with the air in the airbag 10. The movable plate 71 can no longer squeeze the air, thereby realizing multi-directional limitation of the workpiece substrate in the vertical and horizontal directions, which helps to prevent the workpiece substrate from warping in the vertical direction during the clamping process, thereby improving processing safety.

[0051] The implementation principle of embodiment 2 of the present invention is as follows: when the mobile clamping seat 3 moves toward the direction close to the support seat 16, the clamping plate 72 on the mobile clamping seat 3 will abut the side of the workpiece substrate and push the other side of the workpiece substrate to abut against the clamping plate 72 on the fixed clamping seat 2. As the mobile clamping seat 3 continues to approach the support seat 16, the mobile plate 71 will be relatively close to the bottom wall of the corresponding installation cavity 11, and then the mobile plate 71 will squeeze the air in the installation cavity 11 into the corresponding airbag 10, quickly driving the airbag 10 to expand and drive the vertical abutment plate 8 to move downward. When the vertical abutment plate 8 moves downward, the vertical abutment plate 8 first presses the corresponding clamping plate 72 downward until the vertical abutment plate 8 abuts against the upper surface of the workpiece substrate. At this time, the upper surface of the clamping plate 72 is flush with the upper surface of the workpiece substrate, and the air in the installation cavity 11 is balanced with the air in the airbag 10. The movable plate 71 can no longer squeeze the air, thereby realizing multi-directional limitation of the vertical and horizontal directions of the workpiece substrate, which helps to prevent the workpiece substrate from moving in the vertical direction during the clamping process, thereby improving processing safety; at the same time, it can also adapt to workpiece substrates of different thicknesses.

[0052] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated feeding gear hobbing machine, comprising a workbench (1), characterized in that: The workbench (1) is provided with a fixed clamping seat (2), the workbench (1) is provided with a movable clamping seat (3) which is slidably provided, the workbench (1) is provided with a driving source (4), the driving source (4) is used to drive the movable clamping seat (3) to move closer to or away from the fixed clamping seat (2) in a horizontal direction, the fixed clamping seat (2) and the movable clamping seat (3) are both provided with a multi-directional limiting mechanism, the multi-directional limiting mechanism is used to clamp and limit the workpiece substrate in multiple directions including vertical and horizontal directions, and each of the multi-directional limiting mechanisms includes an installation A mounting plate (6), a horizontal abutment plate (7), a vertical abutment plate (8) and a transmission assembly, wherein the mounting plate (6) is arranged on a corresponding fixed clamping seat (2) or a movable clamping seat (3), the horizontal abutment plate (7) is slidably arranged on the corresponding mounting plate (6), and the vertical abutment plate (8) is slidably arranged on the corresponding mounting plate (6) along the vertical direction. The transmission assembly includes a piston ring (9) arranged on the horizontal abutment plate (7), an air bag (10) arranged on the mounting plate (6) and an elastic member arranged in the mounting plate (6), the mounting plate (6) is provided with a mounting cavity (11), and the horizontal abutment plate (7) is provided with a mounting cavity (11). The piston ring (9) is mounted on the horizontal abutment plate (7), and the piston ring (9) abuts against the inner wall of the mounting cavity (11). The mounting plate (6) is provided with an air passage (25), one end of the air passage (25) is connected to the mounting cavity (11), and the other end is connected to the air bag (10), and the air bag (10) is connected to the vertical abutment plate (8). The elastic member includes a first spring (12) arranged in the mounting cavity (11). ), the horizontal abutment plate (7) includes a movable plate (71) and a clamping plate (72), the movable plate (71) is slidably arranged in the installation cavity (11), the piston ring (9) is sleeved on the movable plate (71), the clamping plate (72) is slidably arranged on the movable plate (71) along the vertical direction, the clamping plate (72) is located below the vertical abutment plate (8), and the movable plate (71) is provided with an elastic reset member for driving the clamping plate (72) to reset.

2. The automatic feeding gear hobbing machine according to claim 1, characterized in that: The sliding direction of the horizontal abutment plate (7) is parallel to the arrangement direction of the fixed clamping seat (2) and the movable clamping seat (3); the horizontal abutment plate (7) is used to abut against the side surface of the workpiece substrate; the vertical abutment plate (8) is used to abut against the upper surface of the workpiece substrate; and the transmission assembly is used to drive the vertical abutment plate (8) to move toward the workpiece substrate when the horizontal abutment plate (7) slides toward the corresponding mounting plate (6).

3. The automatic feeding gear hobbing machine according to claim 2, characterized in that: The first spring (12) is used to push the horizontal abutment plate (7) to move in a direction away from the installation cavity (11).

4. The automatic feeding gear hobbing machine according to claim 3, characterized in that: The elastic reset member includes a second spring (13) for driving the clamping plate (72) to reset, one end of the second spring (13) is arranged on the movable plate (71), and the other end is arranged on the clamping plate (72). When the vertical abutment plate (8) and the clamping plate (72) are in a disengaged state, the upper surface of the clamping plate (72) is higher than the upper surface of the workpiece substrate.

5. The automatic feeding gear hobbing machine according to claim 3, characterized in that: When the first spring (12) is in a natural state, a surface of the clamping plate (72) close to the workpiece substrate is flush with a surface of the vertical abutting plate (8) close to the workpiece substrate.

6. The automatic feeding gear hobbing machine according to claim 1, characterized in that: The driving source (4) comprises a cylinder arranged on the workbench (1), and the movable clamping seat (3) is connected to the piston rod of the cylinder.

7. The automated feeding gear hobbing machine according to any one of claims 1 to 6, characterized in that: The gear hobbing machine further comprises a machine body (14) and a slide (15), wherein the slide (15) is slidably arranged on the machine body (14), and the workbench (1) is arranged on the slide (15). A driving member is arranged on the machine body (14), and the driving member is used to drive the slide (15) to drive the workbench (1) to move toward or away from a tool on the machine body (14).

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