A milling machine for producing bridge bearings

Abstract

This invention relates to the field of bridge bearing production technology. It provides a milling machine for bridge bearing production, comprising a frame; a worktable mounted on the frame; a tilting assembly rotatably mounted on the worktable, used to mount a cylindrical slide plate and tilt the slide plate so that either end face of the slide plate faces upwards; and a milling head movable on the frame, positioned above the tilting assembly, used to cut and level the upward-facing end face of the slide plate. The milling machine for bridge bearing production provided by this invention achieves one-time clamping and tilting of the cylindrical slide plate via the tilting assembly, followed by milling head movement and cutting. This avoids accuracy deviations caused by multiple clamping operations, improves efficiency, and reduces workpiece damage. It balances the machining accuracy of the cylindrical slide plate end face with production efficiency, meeting the machining requirements of the core component of the cylindrical bearing, and solves the technical problem of insufficient accuracy caused by multiple clamping operations in traditional milling machines.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of bridge bearing production technology, specifically to a milling machine for bridge bearing production. Background Technology

[0002] Bridge bearings can be classified into several types based on their structural form, stress characteristics, and applicable scenarios. Common types include: 1. Plate rubber bearings, which are made of multiple layers of rubber and thin steel plates vulcanized together. They are simple in construction and low in cost, suitable for beam bridges with small to medium spans. They mainly adapt to the rotation and small displacement of the beam through the elastic deformation of the rubber. 2. Pot bearings, which are composed of a steel pot, a pressure-bearing rubber block, and a polytetrafluoroethylene sliding plate. They have strong load-bearing capacity and large horizontal displacement, suitable for large-span bridges or scenarios with large loads. 3. Spherical bearings, which achieve multi-angle rotation through a steel ball, better adapting to the complex deformation requirements of wide bridges and curved bridges. 4. Column bearings, which use a columnar surface structure as the core and achieve unidirectional or bidirectional rotation through the cooperation of the columnar sliding plate and supporting components. They also have a certain horizontal displacement capacity and are often used in bridge bearing systems with high requirements for rotational accuracy.

[0003] Among them, the cylindrical sliding plate is the core functional component of the cylindrical bearing. The flatness and parallelism of its two end faces directly determine the rotational flexibility of the cylindrical bearing. If there is a deviation in the end face of the cylindrical sliding plate, it will cause the cylindrical bearing to jam or experience local wear during rotation, reducing the overall service performance of the bearing.

[0004] The object of this application is the cylindrical slide plate, a key component of the cylindrical support. Its machining quality directly affects the assembly accuracy and performance of the cylindrical support. Currently, the machining of both ends of the cylindrical slide plate mostly relies on traditional milling machines, using a "single clamping, single end face machining" method. The specific process is as follows: the operator first fixes the cylindrical slide plate on the milling machine table, adjusts the position of the milling head, and then cuts and flattens one end face. After the end face is machined, the locking parts on the fixture need to be removed, and the cylindrical slide plate is manually removed from the table and flipped over (the cylindrical slide plate is generally made of stainless steel and is quite heavy, making it very physically demanding to handle). The position of the cylindrical slide plate is then readjusted and fixed a second time by the fixture. Finally, the position of the milling head is recalibrated to complete the cutting of the other end face.

[0005] However, this traditional machining method for cylindrical sliding plates has the following unavoidable problems: multiple clamping operations lead to accuracy deviations, affecting the performance of the cylindrical support. The two end faces of the cylindrical sliding plate need to maintain a high degree of parallelism to ensure uniform force distribution during rotation of the cylindrical support. However, traditional machining requires two clamping operations, and it is difficult to achieve perfect consistency in the positioning reference of the cylindrical sliding plate through manual adjustment, which can easily lead to parallelism deviations between the two end faces. In addition, even slight offsets of the cylindrical sliding plate during the second clamping will be directly reflected in the machining accuracy of the end faces. After final assembly into the cylindrical support, this may cause the support to jam during rotation, shortening its service life.

[0006] In summary, existing methods for machining cylindrical sliding plates suffer from insufficient precision and low efficiency, making it difficult to meet the quality requirements of core components in cylindrical bearings, thus affecting the overall performance of bridge bearings. Therefore, there is an urgent need for a method that addresses the structural characteristics of cylindrical sliding plates and solves the pain points of existing machining technologies. Summary of the Invention

[0007] To overcome the above-mentioned defects, embodiments of the present invention provide a milling machine for bridge bearing production, which solves the technical problem in the related art that relies on traditional milling machines and requires multiple clamping operations, resulting in insufficient accuracy.

[0008] According to one aspect, at least one embodiment of the present invention provides a milling machine for producing bridge bearings, comprising:

[0009] Frame;

[0010] A workbench is mounted on the frame.

[0011] A flipping assembly is rotatably mounted on the worktable. The flipping assembly is used to install the cylindrical slide plate and drive the cylindrical slide plate to flip so that either end face of the cylindrical slide plate faces upward.

[0012] A milling head is movably mounted on the frame, located above the flipping assembly, and is used to cut and flatten the upward-facing end face of the cylindrical sliding plate.

[0013] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0014] The worktable has a mounting base; the flipping assembly includes:

[0015] A flip-up component is rotatably mounted on the mounting base. The flip-up component has a cylindrical surface positioning groove, which is used to accommodate the cylindrical surface of the cylindrical sliding plate so that the cylindrical surface and the cylindrical surface positioning groove are coaxial.

[0016] A locking element is provided on the flipping element, and the locking element is used to lock the cylindrical sliding plate to the flipping element;

[0017] The flipping component has a first flipping state and a second flipping state. When the flipping component switches between the first flipping state and the second flipping state, the cylindrical sliding plate switches from one end face facing up to the other end face facing up. When the flipping component is in the first flipping state or the second flipping state, the central axis of the cylindrical surface positioning groove is parallel to the central axis of the milling head.

[0018] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0019] The mounting base has a first limiting surface and a second limiting surface on opposite sides, and the flipping component has a third limiting surface on the side facing away from the cylindrical positioning groove.

[0020] When the flipping component is in the first flipping state, the third limiting surface is in contact with the first limiting surface; when the flipping component is in the second flipping state, the third limiting surface is in contact with the second limiting surface.

[0021] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings, wherein the mounting base includes:

[0022] The first rod is vertically mounted on the worktable. The first rod has an axially penetrating cylindrical sliding hole. The first limiting surface and the second limiting surface are located on the first rod.

[0023] The second rod is slidably disposed within the cylindrical sliding hole, with one end of the second rod extending out of the cylindrical sliding hole, and the flipping component is rotatably disposed on the second rod.

[0024] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0025] When the flipping component is in the first flipping state or the second flipping state, the downward-facing end face of the cylindrical sliding plate presses against the worktable.

[0026] The flipping component is used to drive the cylindrical slide plate to rise after sliding up with the second rod, and to form a clearance gap between the cylindrical slide plate and the worktable. When the flipping component switches between the first flipping state and the second flipping state, the clearance gap is used to avoid the downward-facing end face of the cylindrical slide plate.

[0027] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0028] The workbench has a support block, and when the flipping component is in the first flipping state or the second flipping state, the support block is used to support the middle of the downward-facing end face of the cylindrical sliding plate.

[0029] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0030] The first rod has a connecting hole on its side wall that communicates with the cylindrical sliding hole;

[0031] A drive rod is provided through the connecting hole and is hinged to the side wall of the connecting hole via a rotating shaft. One end of the drive rod located inside the cylindrical sliding hole is a lifting end that can act on the lower end of the second rod, and the other end of the drive rod located outside the cylindrical sliding hole is a pressing end. The lifting end can push the second rod upward when the pressing end is pressed.

[0032] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0033] A buffer sleeve is fitted around the outer periphery of the pressing end.

[0034] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings, wherein the locking element includes:

[0035] A telescopic component is provided on the flipping member;

[0036] A hook is rotatably disposed at the telescopic end of the telescopic assembly. The hook is used to follow the retraction of the telescopic assembly and approach the cylindrical slide plate to press against the side wall of the cylindrical slide plate.

[0037] For example, at least one embodiment of this disclosure provides a milling machine for producing bridge bearings.

[0038] The locking element is at least two in number and is divided into two groups, with the two groups of locking elements located on both sides of the cylindrical sliding plate.

[0039] The beneficial effects of the embodiments of the present invention are as follows:

[0040] In this invention, a complete functional system for machining the end face of a cylindrical sliding plate is constructed through the coordinated operation of the frame, worktable, tilting assembly, and milling head. The interrelationship of each feature directly solves the problems of "numerous clamping times, difficulty in guaranteeing accuracy, and low efficiency" in traditional machining, specifically manifested as follows:

[0041] The rigid support of the frame ensures the stability of the worktable's installation position, preventing position displacement caused by overall structural swaying during processing. The worktable's load-bearing capacity on the flipping components ensures that the machining position of the cylindrical slide plate remains fixed, providing a constant reference for the precise alignment of the milling head and avoiding cutting errors caused by unstable positions from the equipment's fundamental level.

[0042] The fixing function keeps the cylindrical slide plate stable during the cutting process, preventing end face flatness deviation caused by the displacement of the cylindrical slide plate; the flipping function allows switching between the two end faces without removing the cylindrical slide plate from the equipment, reducing the number of clamping operations, avoiding positioning deviation caused by multiple clamping operations, and saving the time of workpiece transfer and reloading, thus improving processing efficiency.

[0043] The three-axis movement of the milling head allows it to be aligned with the upward-facing end face; its mounting position above the tilting assembly allows the cutting action to be applied directly to the end face without additional adjustments to the equipment layout, further simplifying the machining process, while ensuring stable transmission of cutting force and reducing the impact of cutting vibration on the machining accuracy of the end face.

[0044] In summary, through the coordinated process of "fixing-flipping-cutting", the various features achieve "less clamping, high precision, and high efficiency" in the machining of cylindrical sliding plate end faces, which is fully compatible with the flatness requirements of cylindrical sliding plate end faces in bridge bearing production, while reducing the intensity of manual operation and equipment investment costs. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0046] Figure 1 This is a three-dimensional structural diagram of a milling machine for producing bridge bearings according to one embodiment of the present invention. Figure 1 ;

[0047] Figure 2 for Figure 1 A three-dimensional structural diagram of a milling machine for producing bridge bearings in one embodiment. Figure 2 ;

[0048] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the flipping component in the embodiment Figure 1 ;

[0049] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the flipping component in the embodiment Figure 2 ;

[0050] Figure 5 for Figure 1 A schematic diagram of the main view structure of the flipping component in the embodiment;

[0051] Figure 6 for Figure 5 Schematic diagram of the AA section structure;

[0052] Figure 7 for Figure 1 A top view of the flipping component in the embodiment;

[0053] Figure 8 for Figure 1 A three-dimensional structural diagram of a milling machine for producing bridge bearings in use, as shown in the embodiment;

[0054] Figure 9 for Figure 1 A schematic diagram of the structure when the flipping component is used in the embodiment;

[0055] Figure 10 for Figure 1 Schematic diagram of the three-dimensional structure of the cylindrical sliding plate in the embodiment Figure 1 ;

[0056] Figure 11 for Figure 1 Schematic diagram of the three-dimensional structure of the cylindrical sliding plate in the embodiment Figure 2 .

[0057] In the diagram: 1-Frame, 2-Workbench, 3-Flipping assembly, 31-Mounting base, 311-First limiting surface, 312-Second limiting surface, 313-First rod, 314-Second rod, 315-Cylindrical sliding hole, 316-Connecting hole, 317-Drive rod, 318-Buffer sleeve, 32-Flipping component, 321-Third limiting surface, 33-Cylindrical surface positioning groove, 34-Locking component, 341-Telescopic assembly, 342-Hook component, 4-Milling head, 51-Support block, 9-Cylindrical sliding plate, 91-End face, 92-Cylindrical surface. Detailed Implementation

[0058] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0059] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0060] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 the present invention.

[0063] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0064] like Figures 1-11 The diagram illustrates a milling machine for producing bridge bearings according to an embodiment of the present invention, comprising a frame 1, a worktable 2, a tilting assembly 3, and a milling head 4. The frame 1 serves as the supporting foundation for the entire machine, providing a mounting platform for the worktable 2 and the milling head 4, ensuring a relatively stable positional relationship between them during processing. The worktable 2 is directly mounted on the upper part of the frame 1, forming a fixed connection with it. Its surface provides installation and support space for the tilting assembly 3, keeping the position of the tilting assembly 3 constant and providing a reference for the subsequent cutting alignment of the milling head 4.

[0065] The flipping component 3 is set on the table surface of the worktable 2. Its core function is to realize the placement, fixing and flipping of the cylindrical slide plate 9. First, after the cylindrical slide plate 9 is placed in the preset position of the flipping component 3, the flipping component 3 constrains the cylindrical slide plate 9 through its own structure to prevent the cylindrical slide plate 9 from shifting during the cutting process. Second, the flipping component 3 can drive the cylindrical slide plate 9 to flip around the preset axis through its own rotation structure. When the flipping action is completed, one end face 91 of the cylindrical slide plate 9 switches to the upward state. Flipping again will make the other end face 91 face upward, which meets the requirement of processing the two end faces 91 in sequence.

[0066] The milling head 4 is mounted on the frame 1 in a movable manner (it is a vertical milling head that can move along three axes). Its installation position is always above the flipping assembly 3, ensuring that it can be accurately aligned with the upward-facing end face 91 on the flipping assembly 3. When one end face 91 of the cylindrical slide plate 9 is facing upward and fixed, the milling head 4 moves to directly above that end face 91 and starts cutting to level the end face 91. After the end face 91 is finished, the flipping assembly 3 drives the cylindrical slide plate 9 to flip so that the other end face 91 faces upward. The milling head 4 moves and repositions again, repeating the cutting action, and finally completes the machining of both end faces 91 of the cylindrical slide plate 9.

[0067] In this embodiment, through the coordinated operation of the frame 1, worktable 2, tilting assembly 3, and milling head 4, a complete functional system for machining the end face of the cylindrical slide plate 9 is constructed. The interrelationship of each feature directly solves the problems of "numerous clamping times, difficulty in guaranteeing accuracy, and low efficiency" in traditional machining, specifically manifested as follows:

[0068] The rigid support of the frame 1 stabilizes the installation position of the worktable 2, preventing the workstation from shifting due to the overall structure shaking during processing. The load-bearing function of the worktable 2 on the flipping component 3 ensures that the processing position of the cylindrical slide plate 9 is always fixed, providing a constant reference for the precise alignment of the milling head 4, thus avoiding cutting errors caused by unstable workstations from the perspective of equipment foundation.

[0069] The fixing function can keep the position of the cylindrical slide plate 9 stable during the cutting process, preventing the flatness deviation of the end face 91 caused by the displacement of the cylindrical slide plate 9; the flipping function can switch between the two end faces 91 without removing the cylindrical slide plate 9 from the equipment, reducing the number of clamping times, avoiding the positioning deviation caused by multiple clamping, and saving the time of workpiece transfer and reloading, thus improving processing efficiency.

[0070] The three-axis movement of the milling head 4 allows it to be aligned with the upward-facing end face 91; its mounting position above the flipping assembly 3 allows the cutting action to be directly applied to the end face 91 without additional adjustments to the equipment layout, further simplifying the machining process, while ensuring the stability of the cutting force transmission direction and reducing the impact of cutting vibration on the machining accuracy of the end face 91.

[0071] In summary, through the coordinated "fixing-flipping-cutting" process, the machining of the end face of the cylindrical slide plate 9 achieves "less clamping, high precision, and high efficiency," which is fully compatible with the flatness requirements of the end face of the cylindrical slide plate 9 in bridge bearing production, while reducing the intensity of manual operation and equipment investment costs.

[0072] Furthermore, refer to Figure 3 and Figure 4 As shown, the flipping assembly 3 includes a mounting base 31, a flipping component 32, and a locking component 34. The mounting base 31 is directly mounted on the table surface of the worktable 2 and forms a fixed connection with the worktable 2, providing rotational support for the flipping component 32. The flipping component 32 is rotatably engaged with the upper end of the mounting base 31 via a rotating shaft, and can rotate around the axis of the mounting base 31. A cylindrical surface positioning groove 33 is provided on the side of the flipping component 32 facing the milling head 4. The outline of the cylindrical surface positioning groove 33 is adapted to the cylindrical surface 92 of the cylindrical slide plate 9. When the cylindrical slide plate 9 is placed, its cylindrical surface 92 is completely embedded in the cylindrical surface positioning groove 33, so that the central axis of the cylindrical surface 92 coincides with the central axis of the cylindrical surface positioning groove 33. The locking component 34 is provided on the flipping component 32 and distributed around the cylindrical surface positioning groove 33. It is used to press and fix the cylindrical slide plate 9 in the cylindrical surface positioning groove 33 to prevent relative displacement between the cylindrical slide plate 9 and the flipping component 32.

[0073] When the flipping component 32 rotates around the mounting base 31, it can switch to either the first flipping state or the second flipping state: In the first flipping state, one side of the flipping component 32 is positioned with the mounting base 31, and one end face 91 of the cylindrical slide plate 9 faces upward; In the second flipping state, the flipping component 32 rotates 180° around the mounting base 31, one side of the flipping component 32 is positioned with the mounting base 31, and the other end face 91 of the cylindrical slide plate 9 faces upward; In both flipping states, the central axis of the cylindrical positioning groove 33 is always parallel (or coaxial) with the central axis of the milling head 4.

[0074] Processing flow: Insert the cylindrical surface 92 of the cylindrical slide plate 9 into the cylindrical surface positioning groove 33, and press the cylindrical slide plate 9 with the locking member 34; move the milling head 4 to directly above the upward end face 91, and start the milling head 4 to cut and flatten the end face 91; after the cutting is completed, rotate the flipping member 32 to the second flipping state, move the milling head 4 to directly above the newly upward end face 91, and start the milling head 4 to complete the cutting and flattening of the end face 91.

[0075] In this embodiment, the mounting base 31 provides stable rotational support for the flipping component 32, preventing the flipping component 32 from shifting when rotating and ensuring the consistency of the flipping action; the cylindrical surface positioning groove 33 and the cylindrical surface 92 of the cylindrical slide plate 9 are coaxially engaged, and the cylindrical surface 92 is directly used as the machining reference, so that the machining of the two end faces 91 is kept perpendicular to the axis of the cylindrical surface 92.

[0076] The locking component 34 can directly constrain the relative position of the cylindrical slide plate 9 and the flipping component 32, preventing the cylindrical slide plate 9 from moving during milling head 4 cutting. The parallel relationship between the cylindrical surface positioning groove 33 and the central axis of the milling head 4 in the two flipping states of the flipping component 32 ensures that the cutting direction of the milling head 4 on the two end faces 91 is consistent (that is, ensures that the end face 91 is perpendicular to the axis of the cylindrical surface 92, that is, the two end faces 91 are parallel and both are perpendicular to the axis of the cylindrical surface 92, ensuring that when the cylindrical slide plate 9 rotates along the central axis of the cylindrical surface 92, the end face 91 does not have displacement along the axis of the cylindrical surface 92, reducing interference with other components and improving service life.

[0077] Furthermore, refer to Figure 5 and Figure 6 As shown, the mounting base 31 is set on the workbench 2, and its opposite sides form a first limiting surface 311 and a second limiting surface 312 respectively. Both limiting surfaces are planes and symmetrical along the axis of the mounting base 31. The flipping component 32 is rotatably engaged with the mounting base 31 through a rotating shaft. The side of the flipping component 32 facing away from the cylindrical surface positioning groove 33 forms a third limiting surface 321. The third limiting surface 321 is plane and is adapted to the first limiting surface 311 and the second limiting surface 312. The locking component 34 is set on the flipping component 32 and is used to fix the cylindrical slide plate 9 in the cylindrical surface positioning groove 33.

[0078] When the flipper 32 rotates around the mounting base 31 to the first flipping state, the third limiting surface 321 is completely in contact with the first limiting surface 311. The flipper 32 is positioned by the rigid contact of the contact surfaces. At this time, one end face 91 of the cylindrical slide plate 9 faces upward. When the flipper 32 rotates to the second flipping state, the third limiting surface 321 is completely in contact with the second limiting surface 312. Similarly, it is positioned by contact. At this time, the other end face 91 of the cylindrical slide plate 9 faces upward. In both flipping states, the central axis of the cylindrical positioning groove 33 is parallel to the central axis of the milling head 4. (Optionally, locking elements, such as suction cups, can be provided on the first limiting surface 311 and the second limiting surface 312 to lock when the third limiting surface 321 is in contact with the first limiting surface 311 or the second limiting surface 312, thereby limiting the position of the flipper 32 at this time).

[0079] Processing flow: Rotate the flipping part 32 to make the third limiting surface 321 fit with the first limiting surface 311, embed the cylindrical slide plate 9 into the cylindrical surface positioning groove 33 and fix it with the locking part 34; move the milling head 4 to cut the upward end face 91; after the cutting is completed, push the flipping part 32 to get away from the first limiting surface 311, rotate it until the third limiting surface 321 fits with the second limiting surface 312, and re-fix the cylindrical slide plate 9; move the milling head 4 and cut the upward end face 91 at this time.

[0080] In this embodiment, the fit between the first limiting surface 311, the second limiting surface 312 and the third limiting surface 321 directly limits the flipping angle of the flipping component 32, avoiding deviations caused by manual angle estimation or reliance on flexible positioning, and ensuring processing accuracy.

[0081] The rigid contact of the mating surfaces can disperse the radial force generated by the milling head 4 during cutting, prevent the flipping part 32 from rotating slightly around the mounting base 31, and reduce the impact of cutting vibration on the flatness of the end face 91. At the same time, the mating and positioning of the limiting surface generally does not require (optionally locking) an additional locking structure, simplifying the operation process and reducing the intensity of manual operation.

[0082] Furthermore, refer to Figure 6 As shown, the flipping component 32 can move up and down along the mounting base 31, and the flipping component 32 can rotate around the mounting base 31 through the rotating shaft; the mounting base 31 is provided with a first limiting surface 311 and a second limiting surface 312, and the flipping component 32 is provided with a third limiting surface 321; the locking component 34 is provided on the flipping component 32 and is used to fix the cylindrical sliding plate 9 in the cylindrical positioning groove 33.

[0083] When the flipper 32 is in the first flip state, the third limiting surface 321 is in contact with the first limiting surface 311, and the downward-facing end face 91 of the cylindrical slide plate 9 directly presses against the worktable 2. When the flipper 32 rises, it drives the cylindrical slide plate 9 to rise synchronously, so that a clearance gap is formed between the downward-facing end face 91 of the cylindrical slide plate 9 and the worktable 2. The clearance height is sufficient to ensure that the cylindrical slide plate 9 does not contact the worktable 2 when the flipper 32 rotates around the axis. After the flipper 32 rotates to the second flip state, the third limiting surface 321 is in contact with the second limiting surface 312, and the other end face 91 of the cylindrical slide plate 9 presses against the worktable 2.

[0084] Processing flow: The flipper 32 descends to the first flipping state, the cylindrical slide plate 9 presses against the worktable 2, the locking piece 34 fixes the cylindrical slide plate 9, and the milling head 4 cuts the upward-facing end face 91; after the cutting is completed, the flipper 32 rises to form a clearance gap and rotates to the second flipping state; the flipper 32 descends to make the cylindrical slide plate 9 press against the worktable 2, and the milling head 4 cuts the other end face 91.

[0085] In this embodiment, the problem of interference between the rotating cylindrical slide plate 9 and the worktable 2 is solved by the lifting and lowering of the flipping component 32: the clearance formed by the rising of the flipping component 32 avoids friction between the cylindrical slide plate 9 and the worktable 2 when it is flipped, prevents scratches on the cylindrical surface 92 or end face 91 of the cylindrical slide plate 9, and reduces rotational resistance to ensure smooth flipping action.

[0086] After the flipper 32 descends, the downward-facing end face 91 of the cylindrical slide plate 9 presses against the worktable 2, forming a fixed cooperation with the locking member 34, further improving stability (when the milling head 4 cuts the end face 91, it will generate a vertical downward pressure, which can be offset by the worktable 2, reducing the fixing burden on the locking member 34). The locking member 34 restricts the horizontal displacement of the cylindrical slide plate 9 from the side, and the worktable 2 restricts the vertical displacement of the cylindrical slide plate 9 from below. This bidirectional fixation can disperse the vertical force generated by the milling head 4 cutting, avoid deformation of the locking member 34 due to excessive force, extend the service life of the component, and improve machining accuracy.

[0087] Furthermore, refer to Figure 7 As shown, a support block 51 is provided on the surface of the workbench 2, and the position of the support block 51 corresponds to the middle of the downward-facing end face 91 of the cylindrical slide plate 9. When the flipping component 32 descends to the first flipping state, the third limiting surface 321 is in contact with the first limiting surface 311, and the middle of the downward-facing end face 91 of the cylindrical slide plate 9 presses against the upper end face of the support block 51, while the edge of the cylindrical slide plate 9 maintains a gap with the surface of the workbench 2; when the flipping component 32 descends to the second flipping state, the third limiting surface 321 is in contact with the second limiting surface 312, and the middle of the other end face 91 of the cylindrical slide plate 9 presses against the support block 51, while the edge also maintains a gap with the surface of the workbench 2.

[0088] Processing flow: The flipping part 32 descends to the first flipping state, the middle of the cylindrical slide plate 9 presses against the support block 51, the locking part 34 fixes the cylindrical slide plate 9, and the milling head 4 cuts the upward-facing end face 91; after the cutting is completed, the flipping part 32 rises and rotates to the second flipping state, and after descending, the middle of the cylindrical slide plate 9 presses against the support block 51, and the milling head 4 cuts the other end face 91.

[0089] In this embodiment, the support block 51 provides single-point support to the middle of the downward-facing end face 91 of the cylindrical slide plate 9. This effectively counteracts vertical forces while minimizing the impact on the verticality of the cylindrical slide plate 9 (avoiding the possibility that the end face 91 before cutting might not be parallel to the worktable 2 surface, causing the cylindrical slide plate 9 to tilt). The support block 51 supports the middle of the end face 91, thus preventing horizontal forces on the cylindrical slide plate 9 and preventing it from tilting due to force. This improves machining accuracy and ensures that the end face 91 after cutting is perpendicular to the central axis of the cylindrical surface 92. The single-point support of the support block 51 also avoids the effects of local unevenness on the surface of the worktable 2, preventing the cylindrical slide plate 9 from tilting.

[0090] Furthermore, refer to Figure 6As shown, the mounting base 31 includes a first rod 313 and a second rod 314. The first rod 313 is vertically mounted on the workbench 2, and its interior has a cylindrical sliding hole 315 extending through the upper end in the vertical direction. The outer side of the first rod 313 is provided with a first limiting surface 311 and a second limiting surface 312. The outer diameter of the second rod 314 is adapted to the inner diameter of the cylindrical sliding hole 315. The second rod 314 slides through the cylindrical sliding hole 315, and its upper end extends out of the cylindrical sliding hole 315. The flipping member 32 is rotatably engaged with the upper end of the second rod 314 through a rotating shaft. The flipping member 32 is provided with a third limiting surface 321 and a cylindrical surface positioning groove 33. The locking member 34 is provided on the flipping member 32 for fixing the cylindrical sliding plate 9.

[0091] When the second rod 314 slides along the cylindrical sliding hole 315, it drives the flipping part 32 to rise and fall synchronously. When the flipping part 32 falls to the first flipping state with the second rod 314, the third limiting surface 321 is in contact with the first limiting surface 311, and the middle part of the cylindrical sliding plate 9 presses against the support block 51 on the worktable 2. After the flipping part 32 rises with the second rod 314, it rotates around the second rod 314 to the second flipping state, and then falls with the second rod 314, so that the third limiting surface 321 is in contact with the second limiting surface 312, and the middle part of the other end face 91 of the cylindrical sliding plate 9 presses against the support block 51.

[0092] Machining process: Push the second rod 314 down along the cylindrical sliding hole 315, the flipping part 32 descends to the first flipping state, and the milling head 4 cuts the upward-facing end face 91; after the cutting is completed, pull the second rod 314 up, rotate the flipping part 32 to the second flipping state; push the second rod 314 down, the flipping part 32 descends and is positioned, and the milling head 4 cuts the other end face 91.

[0093] In this embodiment, the cylindrical sliding hole 315 of the first rod 313 provides a vertical guide for the second rod 314, ensuring that the second rod 314 does not rotate circumferentially when it is raised or lowered, avoiding the displacement of the cylindrical sliding plate 9 caused by the rotation of the flipping part 32 with the second rod 314, and improving the lifting accuracy.

[0094] Furthermore, refer to Figure 6 As shown, the side wall of the first rod 313 has a connecting hole 316 that communicates with the cylindrical sliding hole 315. The connecting hole 316 extends horizontally through the first rod 313. The second rod 314 slides through the cylindrical sliding hole 315, with its upper end extending out of the cylindrical sliding hole 315 and connected to the rotating flipper 32. The drive rod 317 is hinged to the inner wall of the connecting hole 316 by a pin at one end. One end of the drive rod 317 extends into the cylindrical sliding hole 315 and contacts the lower end of the second rod 314 (e.g., ...). Figure 6 One end of the rod extending into the cylindrical sliding hole 315 can be arc-shaped to better act on the lower end of the second rod 314, and the other end extends out of the connecting hole 316 to form a pressing end; the flipping part 32 is provided with a third limiting surface 321 and a cylindrical surface positioning groove 33, and the locking part 34 is provided on the flipping part 32.

[0095] When the pressing end of the drive rod 317 is pressed, the drive rod 317 rotates around the pin shaft, and the end of the drive rod 317 that extends into the cylindrical sliding hole 315 pushes the second rod 314 upward, causing the second rod 314 to move upward along the cylindrical sliding hole 315, thereby driving the flipping part 32 to rise; when the pressing end is released, the second rod 314 slides down along the cylindrical sliding hole 315 under its own gravity, thereby driving the flipping part 32 to fall.

[0096] Machining process: Press the drive rod 317 to raise the flipping part 32, rotate the flipping part 32 to the first flipping state; release the drive rod 317, the flipping part 32 descends and is positioned, and the milling head 4 cuts the upward-facing end face 91; after the cutting is completed, press the drive rod 317 again to raise the flipping part 32 and rotate it to the second flipping state; release the drive rod 317, the flipping part 32 descends and is positioned, and the milling head 4 cuts the other end face 91.

[0097] In this embodiment, the lever design of the drive rod 317 eliminates the need for the operator to directly pull or press the second rod 314. Only a small force is required to drive the second rod 314 upward, making it particularly suitable for scenarios where the tilting component 32 or the cylindrical sliding plate 9 is heavy, significantly reducing operational intensity. Simultaneously, the hinged connection of the drive rod 317 ensures smooth rotation and avoids jamming during lifting. This labor-saving drive structure makes the lifting operation of the tilting component 32 more convenient, improving the ease of use and operational safety of the equipment.

[0098] Furthermore, refer to Figure 3 As shown, the buffer sleeve 318 is sleeved on the outer periphery of the pressing end of the drive rod 317, forming a fixed connection with the pressing end and covering the entire pressing end.

[0099] In this embodiment, the elastic structure of the buffer sleeve 318 can absorb the impact force during pressing, avoiding fatigue or damage to the operator's hands caused by long-term contact with the rigid drive rod 317. It is especially suitable for high-frequency operation scenarios and improves the humanized design of the equipment.

[0100] Furthermore, refer to Figure 4 As shown, the locking member 34 includes a telescopic component 341 and a hook member 342. The telescopic component 341 is disposed on the flipping member 32 and is located around the cylindrical surface positioning groove 33. One end of the hook member 342 is rotatably connected to the telescopic end of the telescopic component 341, and the other end of the hook member 342 is a hook head used to hook the edge of the cylindrical surface sliding plate 9.

[0101] When the telescopic component 341 (which can be a telescopic screw, electric cylinder, pneumatic cylinder, etc.) retracts (first rotate the hook 342 to a position where it can hook onto the edge of the cylindrical slide plate 9), it drives the hook 342 to pull the cylindrical slide plate 9, pressing the cylindrical slide plate 9 tightly into the cylindrical positioning groove 33; when it is released, the telescopic component 341 extends, the hook 342 disengages from the cylindrical slide plate 9, and the fastening of the cylindrical slide plate 9 is released.

[0102] Alternatively, in addition to the above-mentioned fixing methods, the locking member 34 can also be equipped with a pneumatic component (electric suction cup, etc.) in the cylindrical surface positioning groove 33 to fix the cylindrical slide plate 9.

[0103] Furthermore, refer to Figure 4 As shown, there are at least two locking members 34, which are divided into two groups. The two groups of locking members 34 are located on both sides of the cylindrical surface positioning groove 33 and are symmetrically distributed along the central axis of the cylindrical surface positioning groove 33.

[0104] The hooks 342 on both sides pull the cylindrical slide plate 9 so that the central axis of the cylindrical slide plate 9 coincides with the central axis of the cylindrical positioning groove 33, thus pressing and fixing the cylindrical slide plate 9.

[0105] In this embodiment, the cylindrical slide plate 9 is evenly fixed by the symmetrical distribution of two sets of locking members 34: the two sets of locking members 34 are symmetrical along the central axis of the cylindrical surface positioning groove 33, and a fixing force is applied so that the lateral tension on the cylindrical slide plate 9 cancels each other out, avoiding the displacement of the cylindrical slide plate 9 caused by unilateral fixing, ensuring the coaxial accuracy of the cylindrical slide plate 9 and the cylindrical surface positioning groove 33, and further improving the processing flatness of the end face 91.

[0106] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A bridge bearing production milling machine, characterized by, The utility model relates to a kind of milling machines for bridge support production, including: Frame (1); Workbench (2), it is provided on the frame (1); Turnover assembly (3), rotation is provided on the workbench (2), the turnover assembly (3) is used to install cylindrical slide plate (9), and the cylindrical slide plate (9) is overturned to make any end surface (91) of the cylindrical slide plate (9) upward; Milling head (4), movement is provided on the frame (1), the milling head (4) is located above the turnover assembly (3), the milling head (4) is used to cut the end surface (91) of the cylindrical slide plate (9) upward; The workbench (2) has mounting seat (31) on it;The turnover assembly (3) includes: Turnover piece (32), rotation is provided on the mounting seat (31), the turnover piece (32) has cylindrical surface positioning slot (33), the cylindrical surface positioning slot (33) is used to accommodate the cylindrical surface (92) of the cylindrical slide plate (9), so that the cylindrical surface (92) is coaxial with the cylindrical surface positioning slot (33); Locking piece (34), it is provided on the turnover piece (32), the locking piece (34) is used to lock the cylindrical slide plate (9) to the turnover piece (32); The turnover piece (32) has first overturning state and second overturning state, when the turnover piece (32) switches between first overturning state and second overturning state, the cylindrical slide plate (9) switches from one end surface (91) upward to another end surface (91) upward, when the turnover piece (32) is in first overturning state or second overturning state, the center axis of the cylindrical surface positioning slot (33) is parallel to the center axis of the milling head (4); The mounting seat (31) has first limit surface (311) and second limit surface (312) on the opposite sides respectively, the side of the turnover piece (32) away from the cylindrical surface positioning slot (33) has third limit surface (321); When the turnover piece (32) is in first overturning state, the third limit surface (321) is attached with the first limit surface (311), when the turnover piece (32) is in second overturning state, the third limit surface (321) is attached with the second limit surface (312); The mounting seat (31) includes: First rod (313), vertical setting is provided on the workbench (2), the first rod (313) has cylindrical sliding hole (315) that is axially penetrated, the first limit surface (311) and the second limit surface (312) are located on the first rod (313); Second rod (314), sliding is provided in the cylindrical sliding hole (315), one end of the second rod (314) extends out of the cylindrical sliding hole (315), the turnover piece (32) rotation is provided on the second rod (314).

2. According to the milling machine for bridge support production of claim 1, wherein, When the turnover piece (32) is in first overturning state or second overturning state, the end surface (91) of the cylindrical slide plate (9) downward is pressed on the workbench (2); The turnover piece (32) is used to drive the cylindrical sliding plate (9) to rise after following the second rod (314) to slide up and form an avoiding gap between the cylindrical sliding plate (9) and the workbench (2), and the avoiding gap is used to avoid the downward end face (91) of the cylindrical sliding plate (9) when the turnover piece (32) switches between the first turnover state and the second turnover state. 3.The bridge bearing production milling machine of claim 2, wherein, The workbench (2) has a supporting block (51), and the supporting block (51) is used to support the middle part of the downward end face (91) of the cylindrical sliding plate (9) when the turnover piece (32) is in the first turnover state or the second turnover state. 4.The bridge bearing production milling machine of claim 3, wherein, The sidewall of the first rod (313) is provided with a communication hole (316) in communication with the cylindrical sliding hole (315); A driving rod (317) is arranged through the communication hole (316) and is hinged to the sidewall of the communication hole (316) through a rotating shaft, one end of the driving rod (317) in the cylindrical sliding hole (315) is a jacking end capable of acting on the lower end of the second rod (314), and the other end of the driving rod (317) outside the cylindrical sliding hole (315) is a pressing end, and the jacking end is capable of upwardly pushing the second rod (314) when the pressing end is pressed. 5.The bridge bearing production milling machine of claim 4, wherein, The pressing end is provided with a buffer sleeve (318) outside.

6. The bridge bearing production milling machine according to claim 1, characterized in that, The locking piece (34) comprises: A telescopic assembly (341) arranged on the turnover piece (32); A hooking piece (342) rotationally arranged at the telescopic end of the telescopic assembly (341), and the hooking piece (342) is used to follow the telescopic assembly (341) to retract to be close to the cylindrical sliding plate (9) and to be pressed on the sidewall of the cylindrical sliding plate (9). 7.The bridge bearing production milling machine of claim 6, wherein, The locking piece (34) has at least two, and the locking pieces (34) are divided into two groups, and the two groups of locking pieces (34) are respectively located on the two sides of the cylindrical sliding plate (9).

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