Workpiece rotating loading device

Abstract

The utility model relates to a workpiece rotation feeding device, including base, the mounting plate of sliding of being established on the base, be equipped with workpiece clamp on the mounting plate, and the mounting plate is connected linear drive mechanism, workpiece clamp is installed in clamp holder, and this clamp holder fixedly connected rotating shaft, rotating shaft passes through support bearing cover and is installed in the mounting plate, and one end projects and is equipped with follow -up wheel, the fixed location board that is equipped with the guide slot that has been set up on the base, this limit board has been seted up, and the guide slot includes horizontal entry section, inclined transition section and horizontal exit section that communicate in proper order, and horizontal entry section and horizontal exit section are parallel and exist vertical direction height difference, the utility model provides a workpiece rotation feeding device, and linear motion is converted into accurate rotation through pure mechanical structure, and the translational motion and 90 degree rotation action are completed simultaneously with single power source, reduce the equipment complexity and improve the positioning reliability.

Description

Technical Field

[0001] This utility model relates to the field of automated feeding equipment, and in particular to a feeding device that achieves workpiece translation and synchronous rotation through a mechanical structure. Background Technology

[0002] In the field of automated manufacturing, workpieces often need to be adjusted in posture before loading, such as rotating horizontally placed parts 90° to a vertical position. Current mainstream technologies primarily rely on a dual-power-source drive structure.

[0003] 1. Translation drive unit: Typically, a linear motor, cylinder, or lead screw mechanism is used to drive the horizontal movement of the vehicle;

[0004] 2. Rotary drive unit: A rotary motor or swing cylinder is independently installed on the translation mechanism to directly drive the fixture to rotate via a coupling.

[0005] This type of solution has obvious shortcomings:

[0006] 1. Structural redundancy problem: Translation and rotation require two independent power and actuators, resulting in a large equipment size and difficulty in deployment in compact production lines;

[0007] 2. High control complexity: The two sets of drive units need to precisely coordinate the start-stop timing and motion trajectory. The electrical control system has poor fault tolerance and is prone to inaccurate action due to signal interference or program errors.

[0008] 3. Mechanical reliability risk: The drive shaft of the rotating unit directly bears the inertial torque of the workpiece. Long-term operation can easily cause bearing wear or loosening of connecting parts, requiring frequent maintenance.

[0009] While some improvement solutions attempt to simplify the structure using cam mechanisms, significant drawbacks remain: the fixed and unadjustable profile curve of traditional cams results in a limited range of motion trajectories. When adapting to different workpieces or adjusting rotation angles, the entire cam disk must be replaced, increasing spare parts costs and significantly reducing production line efficiency due to downtime for replacement. Furthermore, cam followers are prone to impact vibrations at abrupt changes in profile, leading to accelerated wear over long-term operation and making it difficult to meet high-precision positioning requirements. Utility Model Content

[0010] In view of this, the present invention provides a workpiece rotation feeding device that converts linear motion into precise rotation through a purely mechanical structure, and uses a single power source to simultaneously complete translation and 90° rotation actions, thereby reducing equipment complexity and improving positioning reliability.

[0011] The objective of this utility model is achieved through the following technical solution:

[0012] A workpiece rotary loading device includes a base and a mounting plate slidably disposed on the base. A workpiece clamp is provided on the mounting plate, and the mounting plate is connected to a linear drive mechanism. The workpiece clamp is mounted on a clamp seat, which is fixedly connected to a rotating shaft. The rotating shaft is mounted on the mounting plate via a support bearing sleeve, and one end extends out and is provided with a follower wheel. A limiting plate is fixedly disposed on the base, and the limiting plate has a guide groove. The guide groove includes a horizontal inlet section, an inclined transition section, and a horizontal outlet section connected in sequence. The horizontal inlet section and the horizontal outlet section are parallel and have a vertical height difference. The follower wheel is movably engaged within the guide groove. When the linear drive mechanism drives the mounting plate to move, the follower wheel moves along the path of the guide groove, forcing the rotating shaft to rotate through the inclined transition section and causing the workpiece clamp to rotate by a predetermined angle.

[0013] The linear motion of the mounting plate is converted into precise rotational motion of the workpiece fixture through the mechanical cooperation of the follower wheel and the three-section guide groove. The parallel height difference design of the horizontal inlet and outlet sections forms stable starting and ending positioning surfaces, ensuring the repeatability of the rotation angle. The inclined transition section forcibly guides the follower wheel to generate spatial displacement, which directly drives the fixture seat to rotate via the rotating shaft, eliminating the need for an additional rotary motor or cylinder. The support bearing sleeve provides radial support for the rotating shaft, preventing jamming caused by off-center loading. The overall structure requires only a single power source to simultaneously complete the combined translation and rotation movements, significantly reducing equipment complexity and manufacturing costs.

[0014] Preferably, the linear drive mechanism includes a drive motor mounted on a mounting plate, a drive gear connected to the drive motor, and a rack fixed to the base, wherein the drive gear meshes with the rack.

[0015] The rack and pinion transmission mechanism converts the rotational motion of the drive motor into precise linear displacement of the mounting plate, offering high transmission efficiency and stable thrust. The meshing relationship between the driving gear and the fixed rack creates a self-locking characteristic, keeping the mounting plate stationary at any position and preventing accidental displacement of the workpiece during rotation. This structure allows for flexible adjustment of the moving speed and stroke by controlling the direction and speed of the drive motor, adapting to the loading requirements of workpieces of different sizes. Compared to hydraulic or pneumatic drives, the electrically driven rack and pinion mechanism is more environmentally friendly and energy-efficient, with lower maintenance costs.

[0016] Preferably, a flexible coupling is provided between the drive motor and the drive gear.

[0017] Flexible couplings effectively compensate for radial, angular, and axial installation misalignments between the drive motor output shaft and the driving gear shaft, preventing vibration and bearing wear caused by alignment errors. Their elastic elements absorb impact torque generated during motor start-up, shutdown, or sudden load changes, protecting the gear and rack meshing surfaces from damage. This design allows for a degree of deformation, reducing stringent requirements for installation accuracy and improving assembly tolerance. Simultaneously, it isolates motor vibration from transmission to the drive chain, ensuring workpiece stability during rotation.

[0018] Preferably, the mounting plate is provided with sliding guide blocks symmetrically on both sides, and the base is provided with linear guide grooves that cooperate with the sliding guide blocks.

[0019] The symmetrically arranged sliding guide blocks on both sides form a high-precision guide pair with the linear guide groove, constraining the mounting plate to move only in a single direction, effectively resisting the lateral force generated by gear meshing and the overturning moment caused by workpiece eccentric loading. The large-area contact design of the sliding guide blocks disperses the load-bearing pressure, reduces wear, and extends service life. This structure eliminates wobbling during movement, ensuring precise and controllable movement trajectory of the follower wheel within the guide groove, thereby guaranteeing the repeatability of the workpiece rotation angle. The open guide groove facilitates cleaning and maintenance, preventing debris accumulation that could cause jamming.

[0020] Preferably, the inclined transition section is a continuous curve or a straight slope structure.

[0021] Continuous curved transition sections (such as parabolas or circular arcs) allow for smoother changes in the acceleration of the follower wheel, reducing inertial impact and noise in the rotating shaft system, making them suitable for high-speed operation. Straight ramp structures, on the other hand, offer advantages such as ease of machining and low manufacturing costs. Both forms can convert vertical displacement into rotation angle of the rotating shaft through height differences, ensuring reliable 90° workpiece flipping. The options of curved and straight ramps cover different operating conditions, providing design flexibility while avoiding limiting the protection scope due to a single structure.

[0022] Preferably, the base is equipped with a position detection sensor, and the back of the mounting plate is equipped with a trigger protrusion.

[0023] The combination of a position detection sensor and a trigger bump enables precise identification of critical positions on the mounting plate (such as the corresponding positions of the horizontal inlet and outlet sections) under non-contact conditions. This design avoids the wear problems of mechanical limit switches, offering fast response and long lifespan. The selection of sensor types, such as slot-type photoelectric sensors, Hall effect sensors, or proximity switches, adapts to different environmental conditions (such as oil and dust). The timing of the trigger bump's passage can be linked to control the start and stop of the drive motor, ensuring that the follower wheel always moves within the safe travel range of the guide groove, preventing mechanical damage caused by overtravel.

[0024] Preferably, the fixture base is provided with two symmetrically distributed workpiece fixtures.

[0025] The symmetrical layout of the dual clamps balances the stress on the rotating shaft, reducing the risk of uneven wear on the support bearing sleeves. It can clamp two workpieces simultaneously, improving efficiency in a single operation, or achieve continuous feeding through alternating operation. The symmetrical structure ensures that the center of gravity of the clamp base coincides with the axis of the rotating shaft, reducing vibration during rotation and ensuring workpiece positioning accuracy. This design facilitates expansion into a multi-station system, adapting to production line cycle optimization needs, and allows for limited equipment operation even if a single clamp fails.

[0026] Preferably, the follower wheel is a rolling bearing or a friction-reducing roller.

[0027] Rolling bearings achieve low-friction rotation through the balls between the inner and outer rings, exhibiting high wear resistance and load-bearing capacity; anti-friction rollers (such as engineering plastic wheels) possess self-lubricating, corrosion-resistant, and noise-reducing properties. Both reduce the resistance of the follower wheel sliding within the guide groove, ensuring smooth movement. The rolling element design disperses contact stress, preventing indentations on the limit plate surface. This choice adapts to different load and operating conditions; for example, anti-friction rollers are more suitable for dusty environments, while rolling bearings are suitable for heavy-duty applications.

[0028] Preferably, the rotating shaft and the supporting bearing sleeve are in clearance fit.

[0029] A reasonable assembly clearance provides the necessary thermal expansion margin for the rotating shaft, preventing seizing failure due to temperature rise. The oil film space created by the clearance can store grease, extending the relubrication cycle. A small amount of clearance allows the rotating shaft to elastically self-align under load, compensating for installation parallelism errors between the support bearing sleeve and the guide groove. This design reduces machining accuracy requirements while ensuring that the follower wheel always maintains contact with the guide groove wall, preventing rotational failure.

[0030] Preferably, the predetermined angle is 90°.

[0031] A 90° rotation angle meets the conversion requirements of most workpieces from loading to processing positions, such as standing a flat part upright for side processing. This angle is precisely achieved through the height difference between the horizontal inlet and outlet sections. The angle error depends only on the machining accuracy and is independent of electrical control, ensuring high reliability. This limits the application range to the most common working conditions, enhances the novelty of the claims, and reserves room for expansion in the design of other rotation angles.

[0032] The advantages of this utility model compared to the prior art are:

[0033] The mechanical motion conversion structure of this utility model achieves translation-rotation composite motion driven by a single power source through innovative spatial constraint design. Its specific advantages are as follows:

[0034] 1. Simplified Structure and Cost Optimization: By coupling the linear input of the mounting plate to the forced motion of the follower wheel through a three-section guide channel (horizontal inlet section → inclined transition section → horizontal outlet section), the design converts the linear input of the mounting plate into the rotational output of the rotating shaft. This design eliminates independent rotary drive components (such as rotary motors, cylinders, and their matching solenoid valves), reducing the cost of power components; it eliminates the need for electrical synchronization control, avoiding complex control program development and sensor wiring, thus reducing the difficulty of system integration; the overall structure is flattened, and the stacked layout of the base and mounting plate saves equipment floor space, making it suitable for installation in narrow spaces.

[0035] 2. Improved Motion Accuracy: The parallel height difference dual-horizontal section design, combined with the rotating shaft support structure, significantly improves motion stability. The horizontal inlet / outlet sections form a mechanical hard limit, providing zero-backlash start / end positioning surfaces for the follower wheel, reducing the delay error of traditional sensor feedback; the support bearing sleeve constrains the radial degree of freedom of the rotating shaft, avoiding swaying caused by the cantilever effect when the workpiece rotates, and helps maintain a constant position of the rotation axis; the double-sided slide rail guide enhances rigidity, and the spatial constraint of the guide groove forms a dual positioning guarantee, resulting in high workpiece angle repeatability positioning accuracy.

[0036] 3. Enhanced operational reliability: The purely mechanical motion conversion mechanism fundamentally solves the failure risks of traditional solutions. There is no reliance on electrical control signals. Rotational motion is forcibly driven by the physical path of the follower wheel within the guide groove, avoiding incomplete rotation caused by program errors or signal interference; improved overload resistance, with the tilting transition section distributing the rotational torque across the entire limit plate, allowing it to withstand greater inertial loads compared to the output shaft of a traditional rotary motor; reduced maintenance requirements, with the flexible coupling buffering gear meshing impacts and the clearance fit of the rotating shaft allowing for thermal deformation compensation, extending the lifespan of critical components. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a structural diagram of a workpiece rotating feeding device according to an embodiment of the present invention.

[0039] Figure 2 This is a structural diagram from a second perspective of a workpiece rotating feeding device according to an embodiment of the present invention.

[0040] Figure 3 This is a structural diagram of a workpiece rotating feeding device according to an embodiment of the present invention from a third-view perspective.

[0041] Figure 4 This is a structural diagram of a workpiece rotating feeding device according to an embodiment of the present invention after the limiting plate has been removed.

[0042] Labeling Explanation: 1. Base, 2. Mounting Plate, 3. Workpiece Fixture, 4. Fixture Seat, 5. Rotating Shaft, 6. Follower Wheel, 7. Limiting Plate, 8. Drive Motor, 9. Drive Gear, 10. Rack, 11. Flexible Coupling, 12. Sliding Guide Block, 13. Position Detection Sensor, 14. Trigger Protrusion, 15. Support Bearing Sleeve, 16. Linear Guide Rail Groove, 71. Guide Groove, 711. Horizontal Inlet Section, 712. Inclined Transition Section, 713. Horizontal Outlet Section. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0047] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0048] This embodiment provides a workpiece rotary loading device, including a base 1 and a mounting plate 2 slidably disposed on the base 1. The mounting plate 2 is provided with a workpiece clamp 3 and is connected to a linear drive mechanism. The workpiece clamp 3 is mounted on a clamp seat 4, which is fixedly connected to a rotating shaft 5. The rotating shaft 5 is mounted on the mounting plate 2 through a support bearing sleeve 15, and one end extends out and is provided with a follower wheel 6. A limiting plate 7 is fixedly disposed on the base 1, and the limiting plate 7 has a guide groove 71. The guide groove 71 includes a horizontal inlet section 711, an inclined transition section 712, and a horizontal outlet section 713 connected in sequence. The horizontal inlet section 711 and the horizontal outlet section 713 are parallel and have a vertical height difference. The follower wheel 6 is movably engaged in the guide groove 71. When the linear drive mechanism drives the mounting plate 2 to move, the follower wheel 6 moves along the path of the guide groove 71, and forces the rotating shaft 5 to rotate through the inclined transition section 712, thereby driving the workpiece clamp 3 to rotate by a predetermined angle.

[0049] The linear motion of the mounting plate 2 is converted into the precise rotation of the workpiece fixture 3 through the mechanical cooperation between the follower wheel 6 and the three-section guide groove 71. The parallel height difference design of the horizontal inlet section 711 and the horizontal outlet section 713 forms a stable starting and ending positioning surface, ensuring the repeatability of the rotation angle; the inclined transition section 712 forcibly guides the follower wheel 6 to generate spatial displacement, which directly drives the fixture seat 4 to rotate through the rotating shaft 5, without the need for an additional rotary motor or cylinder. The support bearing sleeve 15 provides radial support for the rotating shaft 5, avoiding jamming caused by off-center load. The overall structure only requires a single power source to simultaneously complete the combined translation and rotation movements, significantly reducing equipment complexity and manufacturing costs.

[0050] In this embodiment, the linear drive mechanism includes a drive motor 8 mounted on the mounting plate 2, a drive gear 9 connected to the drive motor 8, and a rack 10 fixed to the base 1, wherein the drive gear 9 meshes with the rack 10.

[0051] The gear and rack transmission mechanism converts the rotational motion of the drive motor 8 into precise linear displacement of the mounting plate 2, resulting in high transmission efficiency and stable thrust. The meshing relationship between the driving gear 9 and the fixed rack 10 creates a self-locking characteristic, keeping the mounting plate 2 stationary at any position and preventing accidental displacement of the workpiece during rotation. This structure allows for flexible adjustment of the moving speed and stroke by controlling the direction and speed of the drive motor 8, adapting to the feeding requirements of workpieces of different sizes. Compared to hydraulic or pneumatic drives, the electrically driven gear and rack mechanism is more environmentally friendly and energy-efficient, with lower maintenance costs.

[0052] In this embodiment, a flexible coupling 11 is provided between the drive motor 8 and the drive gear 9.

[0053] The flexible coupling 11 effectively compensates for radial, angular, and axial installation misalignments between the output shaft of the drive motor 8 and the shaft of the driving gear 9, preventing vibration and bearing wear caused by alignment errors. Its elastic element absorbs impact torque generated during motor start-up, shutdown, or sudden load changes, protecting the gear and rack meshing surfaces from damage. This design allows for a degree of deformation, reducing stringent requirements for installation accuracy and improving assembly tolerance. Simultaneously, it isolates motor vibration from transmission to the drive chain, ensuring the stability of the workpiece during rotation.

[0054] In this embodiment, sliding guide blocks 12 are symmetrically arranged on both sides of the mounting plate 2, and the base 1 is provided with linear guide grooves 16 that cooperate with the sliding guide blocks 12.

[0055] The symmetrically arranged sliding guide blocks 12 and linear guide grooves 16 form a high-precision guide pair, constraining the mounting plate 2 to move only in a single direction, effectively resisting the lateral force generated by gear meshing and the overturning moment caused by workpiece eccentric loading. The large-area contact design of the sliding guide blocks 12 disperses the load-bearing pressure, reduces wear, and extends service life. This structure eliminates wobbling during movement, ensuring that the movement trajectory of the follower wheel 6 within the guide groove 71 is precisely controllable, thereby guaranteeing the repeatability of the workpiece rotation angle. The open guide groove facilitates cleaning and maintenance, preventing debris accumulation that could cause jamming.

[0056] In this embodiment, the inclined transition section 712 is a continuous curve or a straight slope structure.

[0057] The continuous curved transition section 712, such as a parabola or circular arc, allows for a smooth change in the acceleration of the follower wheel 6, reducing inertial impact and noise from the rotating shaft 5 system, making it suitable for high-speed operation. The straight ramp structure, on the other hand, offers advantages such as simple processing and low manufacturing cost. Both forms can convert vertical displacement into a rotation angle of the rotating shaft 5 through height differences, ensuring the reliability of the workpiece's 90° rotation. The options of curved and straight ramps cover different operating conditions, providing design flexibility while avoiding a narrowing of the protection scope due to a single structure.

[0058] In this embodiment, the base 1 is provided with a position detection sensor 13, and the back of the mounting plate 2 is provided with a trigger protrusion 14.

[0059] The position detection sensor 13, in conjunction with the trigger bump 14, can accurately identify key positions of the mounting plate 2 under non-contact conditions, such as the corresponding positions of the horizontal inlet section 711 and the horizontal outlet section 713. This design avoids the wear problem of mechanical limit switches, offering fast response and long lifespan. The selection of sensor types, such as slot-type photoelectric, Hall effect, or proximity switches, adapts to different environmental conditions, such as oil and dust. The timing of the trigger bump 14's passage can be linked to control the start and stop of the drive motor 8, ensuring that the follower wheel 6 always moves within the safe stroke of the guide groove 71, preventing mechanical damage caused by overtravel.

[0060] In this embodiment, the fixture base 4 is provided with two symmetrically distributed workpiece fixtures 3.

[0061] The symmetrical layout of the dual clamps balances the stress on the rotating shaft 5, reducing the risk of uneven wear on the support bearing sleeve 15. It can clamp two workpieces simultaneously, improving efficiency in a single operation, or achieve continuous feeding through alternating operation. The symmetrical structure ensures that the center of gravity of the clamp base 4 coincides with the axis of the rotating shaft 5, reducing vibration during rotation and ensuring workpiece positioning accuracy. This design facilitates expansion into a multi-station system, adapting to production line cycle optimization needs, and allows for limited equipment operation even if a single clamp fails.

[0062] In this embodiment, the follower wheel 6 is a rolling bearing or a friction-reducing roller.

[0063] Rolling bearings achieve low-friction rotation through the balls between the inner and outer rings, exhibiting high wear resistance and load-bearing capacity; anti-friction rollers, such as engineering plastic wheels, possess self-lubricating, corrosion-resistant, and noise-reducing properties. Both reduce the resistance of the follower wheel 6 sliding within the guide groove 71, ensuring smooth movement. The rolling element design disperses contact stress, preventing indentations on the surface of the limiting plate 7. This choice adapts to different load and operating conditions; for example, anti-friction rollers are more suitable for dusty environments, while rolling bearings are suitable for heavy-duty scenarios.

[0064] In this embodiment, the rotating shaft 5 and the support bearing sleeve 15 are in clearance fit.

[0065] A reasonable assembly clearance provides the necessary thermal expansion margin for the rotating shaft 5, preventing seizure due to temperature rise. The oil film space formed by the clearance can store grease, extending the relubrication cycle. A small amount of clearance allows the rotating shaft 5 to elastically self-align under load, compensating for the parallelism error between the support bearing sleeve 15 and the guide groove 71. This design reduces machining accuracy requirements while ensuring that the follower wheel 6 always maintains contact with the wall of the guide groove 71, preventing rotational failure.

[0066] In this embodiment, the predetermined angle is 90°.

[0067] A 90° rotation angle meets the conversion requirements of most workpieces from loading to processing positions, such as standing a flat part upright for side processing. This angle is precisely achieved through the height difference between the horizontal inlet section 711 and the horizontal outlet section 713. The angle error depends only on the machining accuracy and is independent of electrical control, resulting in high reliability. This limits the application range to the most common working conditions, enhances the novelty of the claims, and reserves room for expansion in the design of other rotation angles. Example 2

[0068] Structural feature variation: The limiting plate 7 adopts a detachable design and is fixed to the mounting groove of the base 1 by bolts. The inclined transition section 712 of the guide groove 71 provides two interchangeable modules: the inclined section of module A is a parabolic continuous curve suitable for high-speed scenarios, and the inclined section of module B is a 45° straight slope suitable for heavy-load scenarios.

[0069] Working process: When it is necessary to switch the workpiece rotation parameters, the tilting section module can be removed by disassembling a single positioning bolt. The replacement time is less than 5 minutes, while the replacement of a traditional cam takes more than 30 minutes. The weight of the module is much less than that of the overall limit plate, which greatly reduces spare parts inventory and management costs. The follower wheel 6 transitions smoothly in the parabolic curve module, reducing the inertial impact of the rotating shaft 5; the straight slope module ensures the structural rigidity when the large-mass workpiece rotates.

[0070] Beneficial effects: Modular design adapts to different working conditions, avoiding the need to replace the entire limit plate; retains the mechanical constraint characteristics of the original three-section guide groove, ensuring the reliability of angle conversion; reduces equipment modification costs, requiring only the replacement of lightweight modules to switch rotation speeds or adapt to different loads, avoiding the need to replace the entire limit plate.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workpiece rotary feeding device, characterized in that, Includes a base (1) and a mounting plate (2) slidably disposed on the base (1), wherein a workpiece clamp (3) is provided on the mounting plate (2), and the mounting plate (2) is connected to a linear drive mechanism; The workpiece fixture (3) is mounted on a fixture base (4), which is fixedly connected to a rotating shaft (5). The rotating shaft (5) is mounted on the mounting plate (2) via a support bearing sleeve (15), and one end extends out and is provided with a follower wheel (6). A limiting plate (7) is fixedly provided on the base (1), and the limiting plate (7) has a guide groove (71); The guide groove (71) includes a horizontal inlet section (711), an inclined transition section (712), and a horizontal outlet section (713) connected in sequence. The horizontal inlet section (711) and the horizontal outlet section (713) are parallel and have a vertical height difference. The follower wheel (6) is movably engaged in the guide groove (71). When the linear drive mechanism drives the mounting plate (2) to move, the follower wheel (6) moves along the path of the guide groove (71), and through the inclined transition section (712), it forces the rotating shaft (5) to rotate and drives the workpiece fixture (3) to rotate.

2. The workpiece rotary feeding device according to claim 1, characterized in that, The linear drive mechanism includes a drive motor (8) mounted on the mounting plate (2), a drive gear (9) connected to the drive motor (8), and a rack (10) fixed to the base (1), wherein the drive gear (9) meshes with the rack (10).

3. The workpiece rotary feeding device according to claim 2, characterized in that, A flexible coupling (11) is provided between the drive motor (8) and the drive gear (9).

4. The workpiece rotary feeding device according to claim 1, characterized in that, The mounting plate (2) is symmetrically provided with sliding guide blocks (12) on both sides, and the base (1) is provided with a linear guide groove (16) that cooperates with the sliding guide blocks (12).

5. The workpiece rotary feeding device according to claim 1, characterized in that, The inclined transition section (712) is a continuous curve or a straight slope structure.

6. The workpiece rotary feeding device according to claim 1, characterized in that, The base (1) is equipped with a position detection sensor (13), and the back of the mounting plate (2) is equipped with a trigger protrusion (14).

7. The workpiece rotary feeding device according to claim 1, characterized in that, The fixture base (4) is provided with two symmetrically distributed workpiece fixtures (3).

8. The workpiece rotary feeding device according to claim 1, characterized in that, The follower wheel (6) is a rolling bearing or a friction-reducing roller.

9. The workpiece rotary feeding device according to claim 1, characterized in that, The rotating shaft (5) is clearance-fitted with the support bearing sleeve (15).

10. The workpiece rotary feeding device according to claim 1, characterized in that, The limiting plate (7) can be detachably installed on the base (1).

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