An automatic collar calibration device

Abstract

This utility model provides an automatic shaft and collar alignment device, relating to the field of machining technology. It includes an alignment station and a conveying station. The alignment station has a workpiece base and an alignment device for radially tightening the ring-shaped workpiece. The alignment device includes several openable or closable support blocks, a cooperating screw, and a drive mechanism. The conveying station has a clamping assembly, including a lifting platform, a laterally sliding guide plate, a gear motor, and a clamp for gripping the ring-shaped workpiece, achieving automatic conveying and positioning of the workpiece. The alignment device includes a linkage mechanism consisting of a housing, a guide sleeve, a guide member, a moving block, and a transmission rod. The screw rotation drives the support blocks to radially expand or contract, completing the automatic alignment of the ring-shaped workpiece. This device has a reasonable structure, is highly efficient in operation, and is suitable for the automatic positioning and alignment of shaft and collar workpieces, significantly improving the level of automation and alignment accuracy.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to an automatic collar correction device. Background Technology

[0002] With the rapid development of modern manufacturing, precision ring-shaped parts, such as bearing inner rings, are increasingly widely used in various mechanical equipment. The heat treatment process of these parts has a significant impact on their final performance and precision. However, during heat treatment, such as quenching or other processes, uneven stress release within the ring-shaped parts can easily lead to micro-deformation, affecting their performance. Especially in assembly line processing, flexible manufacturing, or precision assembly, traditional manual or semi-automatic tensioning methods can no longer meet the automation requirements of high-speed production. Although existing automated devices have a certain degree of tensioning function, they often suffer from poor control synchronization, complex action mechanisms, and inability to integrate with conveyor lines, severely restricting the overall efficiency and adaptability of the equipment. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose an automatic collar correction device, which adopts the following technical solution:

[0004] An automatic collar alignment device, comprising:

[0005] The alignment station is provided with a workpiece base for placing the ring-shaped part. The workpiece base is provided with an alignment device. The alignment device includes several support blocks and a screw that drives the several support blocks to open or close. A drive motor is provided above the alignment station. The drive motor is connected to the drive end of the screw through a lifting mechanism.

[0006] The conveying station is equipped with a clamping assembly for picking up and placing ring-shaped parts; the clamping assembly includes a lifting platform, the lifting platform is provided with a guide plate that can slide laterally and a gear motor, the guide plate is provided with a rack that meshes with the output gear of the gear motor, and the guide plate is provided with a clamp for clamping the ring-shaped parts.

[0007] As a further improvement, the above-mentioned support device includes a housing, and a plurality of guide sleeves are radially arranged on the side wall of the housing. A guide member is slidably arranged in each of the plurality of guide sleeves, and a moving block is threadedly connected to the screw.

[0008] The transmission rod has its two ends hinged to the moving block and the guide member, respectively. When the screw rotates, the moving block moves up or down along the screw, causing the guide member to slide inward or outward within the guide sleeve, thereby causing the support block to contract or open radially along the screw.

[0009] As a further improvement, an upper bracket and a lower bracket are fixedly provided at the upper and lower ends of the housing, respectively. The screw is rotatably connected to the upper bracket and the lower bracket, and the driving end of the screw extends to the upper end of the upper bracket.

[0010] As a further improvement, the upper support and the lower support are each provided with a bearing seat, and the screw is rotatably connected to the bearing seat.

[0011] As a further improvement, the upper and lower ends of the screw are respectively provided with threaded sections with opposite directions of rotation, and the two threaded ends are respectively threadedly connected to the moving blocks.

[0012] As a further improvement, the cross-section of the lower support is Y-shaped, and the workpiece base is provided with an insert groove that matches the shape of the lower support, so as to realize the limiting assembly and stable positioning of the support device in the support station.

[0013] As a further improvement, the workpiece base is provided with several support columns, the support columns are provided with mounting grooves, and a support block is hinged in the mounting groove. The support block includes a support part and a clamping part. The annular part is placed on the support part, driving the support block to rotate inward, thereby causing the clamping part to abut against the side wall of the annular part.

[0014] As a further improvement, a torsion spring is provided at the hinge of the aforementioned support block to drive the support block to rotate outward, and a stop bar is provided in the aforementioned mounting groove to prevent the aforementioned support block from rotating outward excessively.

[0015] As a further improvement, the angle between the supporting part and the clamping part is 90°.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] Firstly, this invention features a workpiece base for supporting the annular component at a calibrating station, with a calibrating device fixedly installed at the center of the base. This calibrating device comprises a housing, a screw, a moving block, guide members, a guide sleeve, support blocks, and a transmission rod. The screw is driven to rotate by an upper drive motor, causing the moving block to move up and down. The transmission rod then synchronously pushes multiple guide members to slide radially, achieving uniform radial opening or closing of multiple support blocks. This device has a simple structure and compact linkage, enabling multi-point synchronous internal calibrating of the annular component. It significantly improves the consistency of the annular component's inner wall roundness, avoiding localized deformation and center misalignment problems caused by traditional manual hammering and single-point tightening, thus ensuring processing accuracy and assembly quality.

[0018] Secondly, this invention features multiple vertical support columns on the workpiece base, with support blocks hinged to the top of each column. Each support block includes a support portion for supporting the bottom of the annular part and a vertically positioned clamping portion. A torsion spring is provided at the hinge point. Under normal conditions, the clamping portion is in an open state under the action of the torsion spring, facilitating the insertion of the annular part. When the annular part is lowered from the clamp to the center position of the alignment device, the support block rotates inward under the combined action of gravity and the structure, and its clamping portion abuts against the side wall of the annular part, forming a multi-point contact limiting and centering structure. This mechanism can achieve rapid automatic centering and stable limiting of the annular part without additional sensors or drive control, providing a good initial positioning for subsequent support block tightening, improving clamping efficiency and reducing the risk of jamming. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a top view of the support and alignment device of this utility model;

[0022] Figure 3 for Figure 2 Sectional view at AA;

[0023] Figure 4 This is a schematic diagram of the structure of the workpiece base of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the support block of this utility model.

[0025] Figure label:

[0026] 100 - Support and alignment station; 200 - Conveying station; 300 - Circular component;

[0027] 110 - Workpiece base; 130 - Drive motor;

[0028] 111-Inset groove; 112-Support column; 113-Support block; 113a-Support part; 113b-Clamping part; 114-Stop bar;

[0029] 121-Support block; 121a-Connecting plate; 121b-Supporting circular plate; 121c-Reinforcing plate; 122-Screw; 122a-Limiting part; 123-Housing; 124-Guide sleeve; 125-Guide component; 126-Transmission rod; 127-Moving block; 128-Upper bracket; 129-Lower bracket; 128a-Bearing seat;

[0030] 211-Lifting platform; 212-Guide plate; 213-Gear motor; 214-Rack; 215-Clamp. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0032] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. The terms "part," "side," "end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.

[0033] like Figures 1-3 As shown, this application provides an automatic collar alignment device, including an alignment station 100 and a conveying station 200. The alignment station 100 is provided with a workpiece base 110 for placing a ring-shaped part 300. An alignment device is provided on the workpiece base 110, including several support blocks 121 and a screw 122 for driving the support blocks 121 to open or close. A drive motor 130 is provided above the alignment station 100, and the drive motor 130 is connected to the drive end of the screw 122 via a lifting mechanism. The conveying station 200 is equipped with a clamping assembly for picking up and placing the ring-shaped part 300. The clamping assembly includes a lifting platform 211, which is provided with a laterally sliding guide plate 212 and a gear motor 213. A rack 214 meshing with the output gear of the gear motor 213 is provided on the guide plate 212, and a clamp 215 for clamping the ring-shaped part 300 is provided on the guide plate 212.

[0034] In one specific embodiment, a conveying station 200 is provided before and after the calibration station 100. The upstream conveying station 200 is used to transport the annular part 300 to be calibrated to the clamping position, and the downstream conveying station 200 is used to remove the calibrated annular part 300 from the calibration station 100 and transport it to the next process or for integration and collection. More specifically, the conveying station 200 includes a frame with a conveyor belt for transporting the annular part 300 to be calibrated or the calibrated annular part 300. A lifting motor is further provided on the frame to drive the lifting platform 211 to move up and down in the vertical direction. The lifting platform 211 is provided with a guide rail, and the aforementioned guide plate 212 is slidably disposed on the guide rail. A gear motor 213 is further provided on the lifting platform 211, with a gear at its output end. When activated, the gear rotates. A rack 214 is horizontally arranged on the upper surface of the guide plate 212. The gear of the gear motor 213 is placed horizontally and meshes with the teeth on the rack 214 of the guide plate 212. After the gear motor 213 is activated, the guide plate 212 moves back and forth along the guide rail under the action of the gear, specifically, it moves back and forth between the conveying station 200 and the support station 100. Furthermore, a clamp 215 for clamping the annular part 300, such as a cylinder-driven double-plate clamp 215, is fixed on the guide plate 212 to clamp the outer periphery of the annular part 300, which will not be described in detail here. Under the coordination of the existing control system, the fixture 215 clamps the ring part 300 to be corrected at the upstream conveying station 200. Through the movement and lifting action of the guide plate 212, the ring part 300 is accurately placed on the workpiece base 110 of the support station 100. After the support is corrected, the ring part 300 is transferred from the support station 100 to the downstream conveying station 200 through similar steps, so as to realize the fully automatic gripping, positioning, support and transfer of shaft and ring type workpieces.

[0035] like Figures 2-3 As shown, the support device includes a housing 123. A plurality of guide sleeves 124 are evenly distributed in a ring along the sidewalls of the housing 123, and the guide sleeves 124 extend radially along the housing 123. Guide members 125 are slidably disposed inside each of the guide sleeves 124. A movable block 127 is threadedly connected to a screw 122. It also includes a transmission rod 126, with its two ends respectively rotatably connected to the movable block 127 and the guide member 125, allowing only vertical rotation. Rotation of the screw 122 causes the movable block 127 to move upwards or downwards along the screw 122, driving the guide member 125 to slide inwards or outwards within the guide sleeve 124, thereby causing the support block 121 to contract or expand radially along the screw 122.

[0036] In one embodiment, the housing 123 is a hollow cylindrical structure with a screw 122 vertically arranged inside. The transmission rod 126 has connecting ears vertically arranged at both ends, which are hinged to the moving block 127 and the guide member 125. When the moving block 127 moves up and down, the transmission rod 126 can generate a pulling force or a pushing force on the guide member 125, causing the guide member 125 to slide inward or outward inside the guide sleeve 124. As an optional embodiment, the guide sleeve 124 is a cuboid through groove, and the guide member 125 is a cuboid or cylinder of a corresponding size. The inner side of the guide member 125 is hinged to the transmission rod 126, and the outer side is detachably fixed with a support block 121. In the above structure, due to the cooperation between the guide 125 and the guide sleeve 124, plus the vertically arranged connecting lug of the transmission rod 126, the rotation of the moving block 127, the transmission rod 126, and the guide 125 around the screw 122 is restricted, eliminating the need to set a guide mechanism for the moving block 127, and the overall structure is simpler.

[0037] Furthermore, preferably, the upper and lower ends of the screw 122 are respectively provided with threaded sections with opposite directions of rotation, and each threaded end is threadedly connected to a movable block 127. Since the upper and lower threaded ends have opposite directions of rotation, when the screw 122 rotates, the upper and lower movable blocks 127 will move closer or further away from each other, thereby simultaneously driving the multiple transmission rods 126 connected to them to move synchronously. This causes each guide member 125 to contract inward or open outward in the radial direction, thereby realizing the synchronous opening and closing of multiple support blocks 121, completing the tightening, correction or release action of the annular member 300, avoiding the stress concentration problem caused by the force transmission of a single movable block 127, effectively reducing the risk of damage to the guide components and support blocks 121, improving the accuracy of mechanical operation, and extending the service life of the device.

[0038] In the above embodiment, a limiting part 122a is provided in the middle of the screw 122. The upper and lower sides of the limiting part 122a are respectively provided with threaded sections with opposite directions of rotation, which are threadedly connected to the upper and lower moving blocks 127 respectively. This structure, while achieving bidirectional drive, uses the limiting part 122a as an intermediate barrier to ensure that the two moving blocks 127 move axially only on their respective independent threaded sections, preventing interference or offset of the upper and lower moving blocks 127 due to excessive travel.

[0039] On the other hand, preferably, the sidewall of the housing 123 is provided with three guide sleeves 124, which are arranged at 120° intervals on the same horizontal plane, forming a three-point balanced support for the annular part 300 during the correction process. Each guide sleeve 124 has a slidably mounted guide member 125, and a support block 121 is fixed to the outside of the guide member 125, which extends inward or outward under the drive of the moving block 127 to cooperate with the inner wall of the annular part 300 for radial tightening correction. The three-point layout effectively suppresses the risk of eccentricity caused by single or double points, making the force on each point more uniform during the correction process, ensuring that the geometry of the annular part 300 achieves accurate circularity under the synchronous action of multiple points, which is beneficial to improving correction accuracy and consistency. Furthermore, the three-point layout also facilitates the positioning of the annular part 300, making it easier for automated identification and clamping.

[0040] like Figure 2 and Figure 4 As shown, the support block 121 includes a connecting plate 121a and a supporting circular plate 121b. The inner side of the connecting plate 121a is detachably fixed to the outer side of the guide member 125 by bolts. The supporting circular plate 121b is connected to the outer end of the connecting plate 121a, and its outer edge contour is an arc surface structure. This arc surface can fit tightly against the inner wall of the annular member 300 to achieve a uniform and stable support effect. Furthermore, to enhance the connection stability and overall torsional stiffness between the connecting plate 121a and the guide member 125, reinforcing plates 121c are respectively provided on both sides of the connecting plate 121a. The reinforcing plate 121c is preferably an L-shaped or triangular rib structure, which can resist the reaction force generated by the supporting circular plate 121b during the expansion process, and improve the stability and durability of the connector under stress.

[0041] like Figures 3-4 As shown, an upper bracket 128 and a lower bracket 129 are fixed at the upper and lower ends of the housing 123, respectively. A screw 122 is rotatably connected to the upper bracket 128 and the lower bracket 129, and the driving end of the screw 122 extends to the upper end of the upper bracket 128.

[0042] In one specific embodiment, the upper support 128 and the lower support 129 are each provided with a bearing seat 128a, and the screw 122 is rotatably connected to the bearing seat 128a. The driving end of the screw 122 extends upward, passes through the upper support 128 and protrudes to its top, for connection with the drive motor 130 located above the alignment station 100.

[0043] In a preferred embodiment, the upper support 128 and the lower support 129 have Y-shaped cross-sections, providing stable three-dimensional support for the housing 123 and dispersing the mechanical stress on the housing 123 when the screw 122 rotates or the guide 125 extends or retracts. Furthermore, the workpiece base 110 is provided with an insert groove 111 that matches the shape of the lower support 129, for limiting assembly and stable positioning of the alignment device in the alignment station 100.

[0044] like Figures 4-5 As shown, the workpiece base 110 is provided with a plurality of support columns 112. The support columns 112 have mounting grooves. A support block 113 is hinged in the mounting groove. The support block 113 includes a support part 113a and a clamping part 113b. The annular member 300 is placed on the support part 113a, driving the support block 113 to rotate inward, thereby causing the clamping part 113b to abut against the side wall of the annular member 300.

[0045] In one specific embodiment, a torsion spring is provided at the hinge of the support block 113 to drive the support block 113 to rotate outward. A stop bar 114 is provided in the mounting groove to prevent the support block 113 from rotating outward excessively. The angle between the support part 113a and the clamping part 113b is 90°. The clamping part 113b is provided with a protrusion. Under normal conditions, the support block 113 flips outward under the action of the torsion spring and abuts against the stop bar 114. The clamping part 113b is in an open state. When the annular part 300 is placed into the support part 113a of the support block 113, the support block 113 flips inward under the action of gravity. The clamping part 113b flips inward and abuts against the outer wall of the annular part 300, thereby clamping and fixing the annular part 300. Preferably, three equally spaced support columns 112 are provided on the workpiece base 110, which can achieve precise centering while clamping and fixing. When removing it, simply pull the ring 300 upwards by clamping it with the clamp 215 to disengage the clamping part 113b.

[0046] Based on the above-mentioned automatic collar calibration device, this specification also provides an automatic collar calibration method, including the following steps:

[0047] Step 1: The clamping assembly grips the annular part 300 to be corrected at the conveyor station 200. Under the control system, the conveyor belt on the conveyor station 200 transports the annular part 300 to the designated clamping position. At this time, the clamping assembly begins to perform the clamping action. Specifically, the lifting platform 211 descends vertically under the drive of the lifting motor, aligning the clamp 215 on the guide plate 212 with the annular part 300 to be corrected.

[0048] Step Two: The drive guide plate 212 slides laterally in the guide rail, moving the annular component 300 above the support and alignment station 100. After the clamping assembly clamps the annular component 300, the control system drives the gear motor 213 mounted on the lifting platform 211 to start. The gear output by the gear motor 213 meshes with the transverse rack 214 mounted on the guide plate 212, driving the guide plate 212 to move laterally along the guide rail mounted on the lifting platform 211. At this time, the annular component 300 is above the support and alignment device, ready to complete the placement operation.

[0049] Step 3: Control the lifting platform 211 to descend, placing the annular component 300 on the workpiece base 110. Under gravity, the support block 113 rotates inward, and the clamping part 113b clamps the annular component 300. While the clamp 215 holds the component in place, the lifting motor drives the lifting platform 211 to move downward again, causing the guide plate 212 and the clamped annular component 300 to descend above the workpiece base 110. When the annular component 300 contacts the support block 113 on the workpiece base 110, continued descent will cause the gravity of the annular component 300 to press against the support part 113a of the support block 113, causing it to rotate inward around the hinge point at the mounting groove. At this time, the clamping part 113b on the support block 113 also rotates inward and fits against the outer wall of the annular component 300, achieving automatic clamping and limiting.

[0050] Step 4: The drive motor 130 rotates the screw 122, causing the support block 121 to open and tighten the annular part 300. After confirming that the annular part 300 is placed stably, the control system starts the drive motor 130, which is set above the tightening station 100. The drive motor 130 drives the screw 122 to rotate through the coupling. The screw 122 is threadedly connected to the moving block 127 inside the housing 123. The rotation of the screw 122 drives the moving block 127 to move up and down axially. The moving block 127 applies a push-pull force to the guide member 125 through the transmission rod 126 hinged to it, thereby driving the guide member 125 to slide along the guide sleeve 124, so that the externally fixed support block 121 opens radially and evenly tightens the inner wall of the annular part 300 outward.

[0051] Step 5: After calibration, the drive motor 130 rotates in the reverse direction, causing the support block 121 to retract. The clamping assembly then re-clamps the annular part 300 and moves it to the next conveying station 200. Once the calibration has reached the set time or the sensor detects the target position, the control system issues a command, causing the drive motor 130 to rotate in the reverse direction, driving the screw 122 to rotate in the reverse direction, thus moving the moving block 127 in the opposite direction. The moving block 127 pulls the guide member 125 via the transmission rod 126, causing the support block 121 to retract radially synchronously, releasing the tension on the annular part 300. At this time, the lifting platform 211 rises again, the clamping assembly re-clamps the calibrated annular part 300, and drives the guide plate 212 to move laterally along the guide rail to the downstream conveying station 200. Finally, the lifting platform 211 descends, the clamp 215 releases, and the annular part 300 is placed in the downstream conveying position, completing one fully automatic calibration process, ready to enter the next process or collection area.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic collar alignment device, characterized in that, include: A calibration station (100) is provided with a workpiece base (110) for placing a ring-shaped part (300). A calibration device is provided on the workpiece base (110). The calibration device includes a plurality of support blocks (121) and a screw (122) for driving the plurality of support blocks (121) to open or close. A drive motor (130) is provided above the calibration station (100). The drive motor (130) is connected to the drive end of the screw (122) through a lifting mechanism. A conveying station (200) is provided with a clamping assembly for picking up and placing ring-shaped parts (300); the clamping assembly includes a lifting platform (211), the lifting platform (211) is provided with a guide plate (212) that can slide laterally and a gear motor (213), the guide plate (212) is provided with a rack (214) that meshes with the output gear of the gear motor (213), and the guide plate (212) is provided with a clamp (215) for clamping the ring-shaped parts (300).

2. The automatic collar correction device as described in claim 1, characterized in that, The supporting device includes a housing (123), and a plurality of guide sleeves (124) are provided annularly and evenly distributed on the side wall of the housing (123). The guide sleeves (124) extend radially along the housing (123). A guide member (125) is slidably provided in each of the plurality of guide sleeves (124). A moving block (127) is threadedly connected to the screw (122). The transmission rod (126) has two ends that are rotatably connected to the moving block (127) and the guide member (125) respectively. The screw (122) rotates, causing the moving block (127) to move up or down along the screw (122), which drives the guide member (125) to slide inward or outward in the guide sleeve (124), thereby causing the support block (121) to move inward or outward along the screw (122).

3. The automatic collar correction device as described in claim 2, characterized in that, The upper support (128) and lower support (129) are fixed at the upper and lower ends of the housing (123), respectively. The screw (122) is rotatably connected to the upper support (128) and lower support (129), and the driving end of the screw (122) extends to the upper end of the upper support (128).

4. The automatic collar correction device as described in claim 3, characterized in that, The upper bracket (128) and the lower bracket (129) are each provided with a bearing seat (128a), and the screw (122) is rotatably connected to the bearing seat (128a).

5. The automatic collar correction device as described in claim 2, characterized in that, The upper and lower ends of the screw (122) are respectively provided with threaded sections with opposite directions of rotation, and the two threaded ends are respectively threadedly connected to the moving block (127).

6. The automatic collar correction device as described in claim 3, characterized in that, The lower support (129) has a Y-shaped cross section, and the workpiece base (110) is provided with an insert groove (111) that matches the shape of the lower support (129) to realize the limiting assembly and stable positioning of the support device in the support station (100).

7. The automatic collar correction device as described in claim 1, characterized in that, The workpiece base (110) is provided with a plurality of support columns (112), each support column (112) having an installation groove, and a support block (113) is hinged in the installation groove. The support block (113) includes a support part (113a) and a clamping part (113b). The annular part (300) is placed on the support part (113a), driving the support block (113) to rotate inward, thereby causing the clamping part (113b) to abut against the side wall of the annular part (300).

8. The automatic collar correction device as described in claim 7, characterized in that, The hinge of the support block (113) is provided with a torsion spring (114) that drives the support block (113) to rotate outward, and a stop bar (114) is provided in the mounting groove to prevent the support block (113) from rotating outward excessively.

9. The automatic collar correction device as described in claim 7, characterized in that, The included angle between the supporting part (113a) and the clamping part (113b) is 90°.

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