Annular part supporting and correcting seat

Abstract

The invention provides an annular piece supporting and correcting seat, and relates to the technical field of machining, the annular piece supporting and correcting seat comprises a support assembly, a plurality of guide sleeves are arranged on the side wall of the support assembly in the radial direction, a guide piece is arranged in each guide sleeve in a sliding mode, and supporting blocks used for supporting and correcting are fixedly arranged on the outer sides of the guide pieces; a screw rod is vertically arranged in the device, and the screw rod is in threaded connection with a moving block capable of moving in the axial direction. The movable block is connected with the guide piece in a hinged mode through the transmission rod, and when the screw rotates, the movable block moves up and down along the axis along with the screw, so that the guide piece is driven to do radial motion in the guide sleeve, and stretching or contracting of the supporting block is achieved. The upper end and the lower end of the screw rod are provided with threaded sections with opposite rotating directions and are connected with a plurality of moving blocks, so that the transmission force balance is improved. The device is compact in structure, high in supporting and correcting precision and suitable for circle supporting and correcting of annular pieces of multiple specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly relates to an annular part supporting and straightening seat. Background Art

[0002] During the manufacturing, transportation or assembly process of annular parts, ellipticity deviation or local deformation of their inner diameters often occurs due to factors such as uneven stress, thermal expansion and contraction, or process deviation, affecting their fitting accuracy and assembly quality. Especially in parts that require high roundness fitting, such as pipe flanges, bearing rings, and mechanical ring parts, if effective roundness correction is not carried out, it will directly affect the product performance and service life.

[0003] However, existing devices generally have problems such as complex structures, poor adjustment synchronization, and loose connections between components, which easily lead to insufficient supporting and straightening accuracy. Moreover, most of the supporting blocks adopt a fixed structure, and it is cumbersome to replace accessories, making it difficult to meet the usage requirements of annular parts of different specifications and sizes. In addition, the sliding fit form between the supporting block and the guiding mechanism lacks a reasonable guiding structure, and the stability and repeated positioning accuracy during the supporting and straightening process need to be improved.

[0004] Therefore, there is an urgent need for an annular part supporting and straightening seat with a compact structure, stable operation, replaceable accessories, and strong adaptability to improve the correction quality of annular parts and the convenience of using the device. Summary of the Invention

[0005] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide an annular part supporting and straightening seat, which adopts the following technical solutions:

[0006] An annular part supporting and straightening seat includes

[0007] a support assembly, on the side wall of which there are a number of guiding sleeves arranged annularly and evenly, and the guiding sleeves extend along the radial direction of the support assembly. A guiding member is slidably arranged in a number of the guiding sleeves, and a supporting block is fixedly arranged on the outer side of the guiding member;

[0008] a screw rod, which is vertically arranged inside the support assembly and can rotate relative to the support assembly, and a moving block is threadedly connected to the screw rod;

[0009] a transmission rod, the two ends of which are respectively and only rotatably connected to the moving block and the guiding member up and down. When the screw rod rotates, the moving block moves up or down along the screw rod, driving the guiding member to slide inwards or outwards in the guiding sleeve, and further making the supporting block move inwards or outwards.

[0010] For further improvement, the upper end and the lower end of the screw rod are respectively provided with thread segments with opposite helix directions, and the two thread segments are respectively threadedly connected with the moving block.

[0011] For further improvement, the above-mentioned support assembly includes a housing. The housing is provided with an upper bracket and a lower bracket. The guiding sleeve is arranged on the side wall of the housing. The upper bracket and the lower bracket are provided with bearing seats, and the screw rod is rotatably connected to the bearing seats.

[0012] For further improvement, a limiting part for abutting against the moving block is arranged in the middle of the screw rod, and screw thread segments with opposite helix directions are respectively arranged on the upper side and the lower side of the limiting part.

[0013] For further improvement, the housing is a hollow cylinder, and three of the above-mentioned guiding sleeves are arranged at equal intervals along the axial direction of the housing.

[0014] For further improvement, the cross-sections of the upper bracket and the lower bracket are Y-shaped.

[0015] For further improvement, the driving end of the screw rod extends to the outside of the upper bracket for connecting a driving motor.

[0016] For further improvement, the supporting block includes a connecting plate and a supporting circular plate. The connecting plate is fixedly arranged on the outside of the guiding member through bolts, and the periphery of the supporting circular plate is an arc surface.

[0017] For further improvement, reinforcing plates are arranged on both sides of the connecting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] First, for the annular part supporting and calibrating seat provided by the present invention, by arranging a plurality of guiding sleeves along the radial direction on the side wall of the support assembly, a guiding member is slidably fitted in each guiding sleeve, a supporting block is fixedly arranged on the outside of the guiding member, and a vertical screw rod is used to drive the moving block to move up and down. With the help of the transmission rod structure, the axial displacement of the screw rod is converted into the synchronous radial movement of each supporting block, so as to realize the accurate and stable supporting and calibrating of the inner wall of the annular part. The above structure is simple, the force transmission is synchronous, effectively preventing the supporting block from shifting, ensuring that each supporting block can maintain uniform and synchronous opening and closing actions during the supporting and calibrating process, thereby improving the roundness consistency and stability of the annular part calibration.

[0020] Second, the present invention restricts the rotation of the moving block on the screw rod through the cooperation of the guiding sleeve and the guiding member, without setting a separate guiding groove for the moving block. The overall structure layout is compact. At the same time, screw thread segments with opposite helix directions are respectively arranged at the upper and lower ends of the screw rod, which can simultaneously drive two moving blocks to move in opposite directions, improving the adjustment response speed and the supporting and calibrating efficiency. It can also share the supporting and calibrating load during the operation process, avoiding the stress concentration problem caused by the force transmission of a single moving block, effectively reducing the damage risk of the guiding assembly and the supporting block, and prolonging the service life of the device.

[0021] Thirdly, in the present invention, the housing is a hollow cylinder with three guiding sleeves evenly distributed circumferentially, having good structural symmetry and balance. The supporting blocks are replaceable and split structures, enhancing the versatility of the equipment and the convenience of maintenance. The outer edge of the circular supporting plate is an arc surface, which can form a large-area contact with the inner wall of the annular part during the supporting and expanding process, effectively expanding the stress area. At the same time, the reinforcing plates arranged on both sides of the connecting plate increase the structural strength, enhancing the anti-deformation ability and bearing strength of the entire supporting block, ensuring the stable operation of the device in high-load and high-frequency usage scenarios, and being suitable for the precise correction of annular parts of various specifications and the requirements of industrial batch operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is Figure 1 A cross-sectional view taken along A-A;

[0025] Figure 3 Schematic diagram of the calibration device structure applying the present invention;

[0026] Figure 4 is Figure 3 Schematic diagram of the structure of the workpiece base in

[0027] Figure 5 is Figure 3 Schematic diagram of the structure of the supporting block in

[0028] Reference numerals:

[0029] 100 - Supporting and calibrating station; 200 - Conveying station; 300 - Annular part;

[0030] 110 - Workpiece base; 130 - Driving motor;

[0031] 111 - Embedding groove; 112 - Support column; 113 - Supporting block; 113a - Supporting part; 113b - Clamping part; 114 - Stop bar;

[0032] 121 - Support block; 121a - Connecting plate; 121b - Circular support plate; 121c - Reinforcing plate; 122 - Screw; 122a - Limiting part; 123 - Housing; 124 - Guide sleeve; 125 - Guide; 126 - Transmission rod; 127 - Moving block; 128 - Upper bracket; 129 - Lower bracket; 128a - Bearing seat;

[0033] 211 - Lifting table; 212 - Guide plate; 213 - Gear motor; 214 - Rack; 215 - Fixture. Detailed implementation manners

[0034] For the convenience of those skilled in the art to understand, the embodiments will now be described in further detail with reference to the accompanying drawings for the structure of the present invention:

[0035] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. The terms "part", "side", "end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] For the convenience of understanding, before explaining the technical solution of this application, first explain a Figure 3 shaft collar automatic calibration device as shown, including a support and calibration station 100 and a conveying station 200. Among them, the support and calibration station 100 is provided with a workpiece base 110 for placing the annular part 300. The workpiece base 110 is provided with a support and calibration device. The support and calibration device includes a number of support blocks 121 and a screw 122 for driving the number of support blocks 121 to open or close. Above the support and calibration station 100, there is a driving motor 130. The driving motor 130 is connected to the driving end of the screw 122 through a lifting mechanism. The conveying station 200 is equipped with a clamping component for picking and placing the annular part 300; the clamping component includes a lifting table 211. The lifting table 211 is provided with a laterally slidable guide plate 212 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. The guide plate 212 is provided with a fixture 215 for clamping the annular part 300.

[0037] In a specific embodiment, a conveying station 200 is provided in front of and behind the sizing station 100. The upstream conveying station 200 is used to transport the annular part 300 to be sized to the position to be clamped, and the downstream conveying station 200 is used to take out the sized annular part 300 from the sizing station 100 and transport it to the next process or for integrated collection. More specifically, the conveying station 200 includes a frame, and a conveyor belt is arranged on the frame for transporting the annular part 300 to be sized or the sized annular part 300. A lifting motor is further arranged on the frame to drive the lifting table 211 to move up and down in the vertical direction. A guide rail is arranged on the lifting table 211, and the above-mentioned guide plate 212 is slidably arranged on the guide rail. A gear motor 213 is further arranged on the lifting table 211, and a gear is arranged at the output end thereof. After being started, the gear rotates. A rack 214 is horizontally arranged on the upper end surface of the above-mentioned guide plate 212. The gear of the gear motor 213 is horizontally placed and meshes with the teeth on the rack 214 of the guide plate 212. After the gear motor 213 is started, 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 sizing station 100. Further, a fixture 215 for clamping the annular part 300 is fixedly arranged on the guide plate 212, such as a double-plate fixture 215 driven by a cylinder, which clamps the periphery of the annular part 300 and will not be elaborated here. Under the coordination of the existing control system, the fixture 215 is configured to clamp the annular part 300 to be corrected at the upstream conveying station 200, and through the movement and lifting actions of the guide plate 212, the annular part 300 is accurately placed on the workpiece base 110 of the sizing station 100; after the sizing is completed, the annular part 300 is transferred from the sizing station 100 to the downstream conveying station 200 through similar steps, realizing the full-automatic grasping, positioning, sizing and transfer of shaft ring workpieces.

[0038] As Figure 1 - Figure 2 shown, the sizing device includes a support assembly, the above-mentioned screw rod and a transmission rod. A plurality of guide sleeves are annularly and evenly distributed on the side wall of the support assembly, and the guide sleeves extend along the radial direction of the support assembly. A guide member is slidably arranged in a plurality of the guide sleeves, and a sizing block is fixedly arranged on the outer side of the guide member. The screw rod 122 is vertically arranged inside the support assembly and can rotate relative to the support assembly. A moving block is threadedly connected to the screw rod; both ends of the above-mentioned transmission rod 126 are respectively and only rotatably connected to the moving block 127 and the guide member 125 in the up and down direction.

[0039] Specifically, the support assembly includes a housing 123. A plurality of guide sleeves 124 are annularly and uniformly arranged on the side wall of the housing 123. A guide member 125 is slidably arranged radially inside each of the plurality of guide sleeves 124. A moving block 127 is threadedly connected to the screw rod 122. It further includes a transmission rod 126. The two ends of the transmission rod 126 are respectively hinged to the moving block 127 and the guide member 125. When the screw rod 122 rotates, the moving block 127 moves upward or downward along the screw rod 122, driving the guide member 125 to slide inward or outward in the guide sleeve 124, and further causing the support block 121 to move inward or outward, that is, multiple support blocks 121 approach each other or separate from each other.

[0040] In one embodiment, the housing 123 is a hollow cylindrical structure. A screw rod 122 is vertically arranged inside it. Connection ears are vertically arranged at both ends of the transmission rod 126 and 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, driving the guide member 125 to slide inward or outward inside the guide sleeve 124. As an alternative embodiment, the guide sleeve 124 is a rectangular through groove, and the guide member 125 is a rectangular body or a cylinder of corresponding size. The inner side of the guide member 125 is provided with a hinge connection with the transmission rod 126, and a support block 121 is detachably fixed on the outer side. In the above structure, due to the cooperation between the guide member 125 and the guide sleeve 124, and the vertically arranged connection ears of the transmission rod 126, the rotation of the moving block 127, the transmission rod 126, and the guide member 125 around the screw rod 122 is restricted, eliminating the need to provide a guiding mechanism for the moving block 127, and the overall structure is simpler.

[0041] Further, as a preference, the upper end and the lower end of the screw rod 122 are respectively provided with thread segments with opposite helix directions. Two moving blocks 127 are respectively threadedly connected to the two thread ends. Since the helix directions of the upper and lower thread ends are opposite, when the screw rod 122 rotates, the upper and lower moving blocks 127 will approach each other or move away from each other, thereby simultaneously driving a plurality of transmission rods 126 connected thereto to move synchronously, causing each guide member 125 to contract inward or expand outward in the radial direction, and further realizing the synchronous opening and closing of multiple support blocks 121, completing the tightening correction or release action on the annular member 300, avoiding the stress concentration problem caused by the force transmission of a single moving block 127, effectively reducing the damage risk of the guiding assembly and the support block 121, improving the mechanical operation accuracy, and also extending the service life of the device.

[0042] In the above embodiment, a limiting portion 122a is provided in the middle of the screw rod 122. Threaded segments with opposite helix directions are respectively provided on the upper and lower sides of the limiting portion 122a, and are respectively threadedly connected to the upper and lower moving blocks 127. On the basis of realizing bidirectional driving, this structure uses the limiting portion 122a as an intermediate barrier to ensure that the two moving blocks 127 only move axially along their respective independent threaded segments, avoiding interference or deviation of the upper and lower moving blocks 127 due to excessive stroke.

[0043] On the other hand, preferably, three guiding sleeves 124 are provided on the side wall of the housing 123. The three guiding sleeves 124 are arranged at intervals of 120° from each other on the same horizontal plane, and can form a three-point balanced support for the annular member 300 during the correction process. A guiding member 125 is slidably arranged radially in each guiding sleeve 124. A supporting block 121 is fixedly arranged on the outer side of the guiding member 125, and is used to extend inwards or outwards under the drive of the moving block 127 to cooperate with the inner wall of the annular member 300 for radial tightening and correction. The three-point layout can effectively suppress the eccentricity risk brought by single point or double points, make the forces at each point more uniform during the correction process, ensure that the geometric shape of the annular member 300 is accurately restored under the simultaneous action of multiple points, and is beneficial to improving the correction accuracy and consistency. In addition, the three-point layout is also convenient for positioning the annular member 300, and is convenient for automatic identification and clamping.

[0044] As Figure 1 shown, the supporting block 121 includes a connecting plate 121a and a supporting circular plate 121b. The inner side of the connecting plate 121a is detachably and fixedly installed on the outer side of the guiding member 125 through bolts. The supporting circular plate 121b is connected to the outer end of the connecting plate 121a, and the outer edge contour thereof is an arc surface structure. This arc surface can be attached and tightened to the inner wall of the annular member 300 to achieve a uniform and stable supporting and correcting effect. Further, in order to enhance the connection stability between the connecting plate 121a and the guiding member 125 and the overall torsional stiffness, reinforcing plates 121c are respectively arranged on both sides of the connecting plate 121a. The reinforcing plate 121c is preferably an L-shaped or triangular rib-like structure, which can resist the reaction force generated during the opening process of the supporting circular plate 121b, and improve the stability and durability of the connecting member under the stressed state.

[0045] As Figure 2 and Figure 4 shown, an upper bracket 128 and a lower bracket 129 are respectively fixedly arranged at the upper and lower ends of the housing 123. The screw rod 122 is rotatably connected to the upper bracket 128 and the lower bracket 129, and the driving end of the screw rod 122 extends to the upper end of the upper bracket 128.

[0046] In a specific embodiment, the upper bracket 128 and the lower bracket 129 are respectively provided with a bearing seat 128a, and the screw 122 is rotatably connected to the bearing seat 128a. Among them, the driving end of the screw 122 extends upward, passes through the upper bracket 128 and protrudes to its top, and is used to connect with the driving motor 130 arranged above the straightening station 100.

[0047] In a preferred embodiment, the cross-sections of the upper bracket 128 and the lower bracket 129 are Y-shaped, providing stable three-way support for the housing 123, and dispersing the mechanical stress received by the housing 123 when the screw 122 rotates or the guide member 125 expands and contracts. Further, the workpiece base 110 is provided with a fitting groove 111 that matches the shape of the lower bracket 129, so as to realize the limit assembly and stable positioning of the straightening device at the straightening station 100.

[0048] As Figure 4 - Figure 5 shown, the workpiece base 110 is provided with a plurality of support columns 112. The support columns 112 are provided with installation grooves, and a supporting block 113 is hinged in the installation groove. The supporting block 113 includes a supporting portion 113a and a clamping portion 113b. The annular member 300 is placed on the supporting portion 113a, driving the supporting block 113 to rotate inward, and then making the clamping portion 113b abut against the side wall of the annular member 300.

[0049] In a specific embodiment, a torsion spring for driving the supporting block 113 to rotate outward is arranged at the hinge of the supporting block 113. A stop rod 114 for preventing the supporting block 113 from rotating outward excessively is arranged in the installation groove. The included angle between the supporting portion 113a and the clamping portion 113b is 90°. The clamping portion 113b is provided with a protrusion. Under normal conditions, the supporting block 113 flips outward under the action of the torsion spring and abuts against the stop rod 114, and the clamping portion 113b is in an open state. When the annular member 300 is placed in the supporting portion 113a of the supporting block 113, the supporting block 113 flips inward under the action of gravity, and the clamping portion 113b flips inward and abuts against the outer side wall of the annular member 300, realizing the clamping and fixing of the annular member 300. Preferably, three support columns 112 are arranged on the workpiece base 110 at equal intervals, realizing accurate centering while clamping and fixing. When taking out, just clamp the periphery of the annular member 300 with the above-mentioned fixture 215 and lift it upward, and the clamping portion 113b can be disengaged.

[0050] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ring-shaped part supporting and calibrating seat, characterized in that Including a support assembly, on the side wall of which a plurality of guide sleeves (124) are annularly and evenly distributed, and the guide sleeves (124) are arranged to extend along the radial direction of the support assembly. A guide member (125) is slidably arranged in a plurality of the guide sleeves (124), and a support block (121) is fixedly arranged on the outer side of the guide member (125); a screw rod (122), which is vertically arranged inside the support assembly and can rotate relative to the support assembly. A moving block (127) is threadedly connected to the screw rod (122); a transmission rod (126), the two ends of which are respectively and only rotatably connected to the moving block (127) and the guide member (125) in the up-and-down direction. When the screw rod (122) rotates, the moving block (127) moves upward or downward along the screw rod (122), driving the guide member (125) to slide inward or outward in the guide sleeve (124), and further enabling the support block (121) to move inward or outward.

2. The annular part supporting and calibrating seat according to claim 1, wherein Thread sections with opposite helical directions are respectively arranged at the upper end and the lower end of the screw rod (122), and one moving block (127) is threadedly connected to each of the two thread sections.

3. The annular part supporting and calibrating seat according to claim 1 or 2, characterized in that, The support assembly includes a housing (123), the housing (123) is provided with an upper bracket (128) and a lower bracket (129), the guide sleeve (124) is arranged on the side wall of the housing (123), and bearing seats (128a) are arranged on the upper bracket (128) and the lower bracket (129). The screw rod (122) is rotatably connected to the bearing seats (128a).

4. The annular part supporting and aligning seat according to claim 3, wherein A limiting portion (122a) for abutting against the moving block (127) is arranged in the middle of the screw rod, and thread sections with opposite helical directions are respectively arranged on the upper side and the lower side of the limiting portion (122a).

5. The annular part supporting and straightening seat according to claim 3, characterized in that, The housing (123) is a hollow cylinder, and three of the guide sleeves (124) are arranged at equal intervals along the axial direction of the housing (123).

6. The annular part supporting and aligning seat according to claim 3, characterized in that, The cross sections of the upper bracket (128) and the lower bracket (129) are Y-shaped.

7. The annular part supporting and straightening base according to claim 3, characterized in that, The driving end of the screw rod (122) extends to the outside of the upper bracket (128) for connecting a driving motor.

8. The annular part supporting and straightening seat according to claim 1, wherein, The support block (121) includes a connecting plate (121a) and a supporting circular plate (121b). The connecting plate (121a) is fixedly arranged on the outer side of the guide member (125) through bolts, and the periphery of the supporting circular plate (121b) is an arc surface.

9. The annular part supporting and straightening base according to claim 8, characterized in that, Reinforcing plates (121c) are arranged on both sides of the connecting plate (121a).

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