Gear ring positioner

Abstract

The utility model discloses a gear ring positioner. The gear ring positioner comprises a mounting seat, a first mounting table and a second mounting table, the gear ring displacement structure comprises two driving pieces, a lower gear ring, a workpiece fixing piece, an upper gear ring and an upper displacement mechanism; an upper meshing wheel is arranged in the lateral direction of the upper gear ring, at least one lower meshing wheel is arranged in the lateral direction of the lower gear ring, the movable guide structure comprises an upper displacement assembly arranged at the tail end of an upper displacement mechanism, and a lower displacement assembly is arranged on the second mounting table. And the maximum eccentric torque is still redundant enough, so that the phenomena of automatic overturning after locking, abnormal sound, vibration and the like during overturning are avoided, and higher stability is realized.

Description

Technical Field

[0001] The utility model relates to high-end equipment welding equipment, in particular to a gear ring positioner. Background Art

[0002] The positioner is a special welding auxiliary equipment, suitable for welding position adjustment in rotary work to obtain the ideal processing position and welding speed. The welding positioner is generally composed of a worktable rotation mechanism and a flip mechanism. Through the lifting, flipping and rotation of the worktable, the workpiece fixed on the worktable can reach the required welding and assembly angle. The worktable rotation is variable frequency stepless speed regulation, which can obtain a satisfactory welding speed. The existing welding table is generally used for welding small tubular objects.

[0003] Traditional welding structures all fix the workpiece on the rotating end of the device, and drive the workpiece to rotate by rotating the rotating end. However, in the case of large workpieces, it is often difficult to drive the large workpiece to rotate only by the rotating end. Therefore, the existing method is to use a gear ring to fix the workpiece and drive the large workpiece to rotate. However, when the gear ring is rotating, since it is in an openable and closable state, the eccentricity does not meet the requirements when it rotates to the maximum eccentricity, resulting in large deformation of the component, or even instability and damage, and the safety of the entire structure is poor.

[0004] Therefore, this case aims to provide a gear ring positioner that can not only drive the rotation of large workpieces by clamping the gear ring, but also can flip the gear ring to the maximum eccentricity. The maximum eccentric moment is still sufficiently redundant, and it will not flip on its own after locking, or have abnormal noise or vibration during flipping, making it more stable. Utility Model Content

[0005] The utility model provides a gear ring positioner, which can effectively solve the above problems.

[0006] The utility model is achieved in this way:

[0007] A ring gear positioner comprises: a mounting base fixed on a mounting surface, wherein a first mounting platform and a second mounting platform are fixedly connected to two sides of the mounting base respectively;

[0008] The gear ring displacement structure includes two driving members arranged on a mounting seat, a lower gear ring is movably mounted on the inner side of the mounting seat, a workpiece fixing member is arranged on the inner side of the lower gear ring, an upper gear ring is movably mounted on the opening at the upper end of the lower gear ring, the upper gear ring is opened and closed by an upper displacement mechanism, and the upper gear ring and the lower gear ring form a chamber for accommodating the workpiece. When the driving member rotates, the upper gear ring and the lower gear ring drive the workpiece to rotate circumferentially;

[0009] A movable guiding structure, wherein an upper meshing wheel is provided on the side of the upper gear ring, and at least one lower meshing wheel is provided on the side of the lower gear ring. The movable guiding structure includes an upper shifting component provided at the end of the upper shifting mechanism. When the upper gear ring is in its original position, the upper shifting component meshes with the upper meshing wheel. A lower shifting component is provided on the second mounting platform. When the lower gear ring is in its original position, the lower shifting component meshes with the lower meshing wheel.

[0010] As a further improvement, the upper shifting assembly includes a hinged part movably mounted on the first mounting platform, the end of the hinged part is locked with an L-shaped fixing part, the L-shaped fixing part is hinged with a first movable fitting part, and the first movable fitting part is movably fitted with the upper meshing wheel.

[0011] As a further improvement, the first movable mating part includes a swinging plate hinged to the outside of one end of the long axis of the L-shaped fixing part, at least two upper mating teeth are installed on the inner side of the swinging plate, and the other corner of the top of the swinging plate is connected to an upward push cylinder, which is hingedly installed on the short axis of the L-shaped fixing part.

[0012] As a further improvement, the lower displacement assembly includes a connecting seat fixedly connected to the second mounting platform, and a second movable fitting part is hingedly installed on the connecting seat. The bottom end of the second movable fitting part is hinged to the second mounting platform, and the second movable fitting part is movably engaged with the lower meshing wheel.

[0013] As a further improvement, the second movable fitting includes a side swing plate hinged on the second mounting platform, at least two lower mating teeth are installed on the inner side of the side swing plate, the left corner of the side swing plate is connected to a side push cylinder, and the side push cylinder is hingedly mounted on the connecting seat.

[0014] As a further improvement, the workpiece fixing member includes a lower positioning tool arranged at the bottom of the inner side of the lower gear ring, and centering clamping tooling is provided on both the left and right sides of the inner side of the lower gear ring.

[0015] As a further improvement, the centering clamping tool includes a centering cylinder installed on the inner side of the lower gear ring, a clamping plate is provided on the output end of the centering cylinder, and the two centering cylinders are driven by the same driving structure.

[0016] As a further improvement, the hinged member includes a hydraulic cylinder hinged to the first mounting platform, the hydraulic cylinder is connected to the L-shaped fixing member through a folding frame, and the connection between the first bending section and the second bending section of the folding frame is hinged to the extension pile of the first mounting platform.

[0017] The beneficial effects of the utility model are:

[0018] During the rotational welding of large workpieces, in order to facilitate the feeding and unloading of the workpiece, the utility model divides the gear ring into a lower gear ring and an upper gear ring, and allows the upper gear ring to be opened and closed by an upper shifting mechanism. When feeding is required, the upper gear ring is opened by the upper shifting mechanism. In the processing stage, the upper gear ring and the lower gear ring can form a complete gear to cooperate with the two driving parts, and the workpiece is fixed by the workpiece fixing part. When unloading is required, the upper gear ring is reset, and the upper gear ring is opened to complete the unloading, so that the workpiece can be in a relatively stable state during the entire welding process and the entire rotation process.

[0019] However, during the rotation of the gear structure composed of the upper ring gear and the lower ring gear, it is obviously insufficient to drive and maintain stability only by two driving parts, which can easily lead to insufficient support force of the ring gear on the workpiece, and abnormal noises and even partial structural deformation during rotation. Therefore, the utility model also provides a movable guide structure based on the ring gear displacement structure, and guides and supports the upper and lower ring gears through the upper displacement components and the lower displacement components on the movable guide structure, so that the eccentricity of the ring gear during rotation is more controllable, and the steering accuracy is higher while supporting multiple points. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0022] Figure 2 It is a front view structural schematic diagram of the present utility model.

[0023] Figure 3 It is a rear view structural schematic diagram of the present utility model.

[0024] Figure 4 It is a structural diagram of the upper position changing component of the utility model.

[0025] Figure 5 It is a structural diagram of the lower displacement component of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0028] Reference Figures 1 to 5 As shown, a gear ring positioner comprises: a mounting base 10 fixed on a mounting surface, with a first mounting platform 11 and a second mounting platform 12 fixedly connected to both sides of the mounting base 10; a gear ring displacement structure 20, comprising two driving members 21 arranged on the mounting base 10, a lower gear ring 22 movably mounted on the inner side of the mounting base 10, a workpiece fixing member provided on the inner side of the lower gear ring 22, an upper gear ring 23 movably provided at the opening at the upper end of the lower gear ring 22, the upper gear ring 23 is opened and closed by an upper displacement mechanism 24, the upper gear ring 23 and the lower gear ring 22 form a chamber for accommodating the workpiece, and when the driving member 21 is provided, the lower gear ring 22 is provided with a workpiece fixing member. When the moving part 21 rotates, the upper gear ring 23 and the lower gear ring 22 drive the workpiece to rotate circumferentially; the movable guiding structure, the upper gear ring 23 is provided with an upper meshing wheel on the side, and the lower gear ring 22 is provided with at least one lower meshing wheel 221 on the side, and the movable guiding structure includes an upper displacement component 31 arranged at the end of the upper displacement mechanism 24, when the upper gear ring 23 is in the original position, the upper displacement component 31 is engaged with the upper meshing wheel, and the second mounting platform 12 is provided with a lower displacement component 32, when the lower gear ring 22 is in the original position, the lower displacement component 32 is engaged with the lower meshing wheel 221.

[0029] The mounting seat 10 in this embodiment is installed on the slide rail, and the gear ring positioner is not only provided with one group, but at least two groups, and a guide tube of the workpiece is used at the head end or the end of the workpiece to guide the workpiece axially. This part is all existing technology, so it is not expanded in this case.

[0030] The driving member 21 in this embodiment is a rotating motor with gears. The rotation of the motor realizes the rotation of the gear ring, thereby driving the workpiece to rotate.

[0031] During the rotational welding of large workpieces, in order to facilitate the feeding and unloading of the workpiece, the utility model divides the gear ring into a lower gear ring 22 and an upper gear ring 23, and allows the upper gear ring 23 to be opened and closed by the upper shifting mechanism 24. When feeding is required, the upper gear ring 23 is opened by the upper shifting mechanism 24. In the processing stage, the upper gear ring 23 and the lower gear ring 22 can form a complete gear to cooperate with the two driving parts 21, and fix the workpiece through the workpiece fixing part. When unloading is required, the upper gear ring 23 is reset, and the upper gear ring 23 is opened to complete the unloading, so that the workpiece can be in a relatively stable state during the entire welding process and the entire rotation process.

[0032] Among them, the fixing structure of the lower gear ring 22 is divided into three parts. Specifically, the workpiece fixing part includes a lower positioning tooling 41 arranged at the bottom inner side of the lower gear ring 22, and the left and right sides of the inner side of the lower gear ring 22 are provided with centering clamping tooling 42, which is fixed by two lateral forces and bottom support force, wherein the bottom support force is fixed and cannot be adjusted, and the centering clamping tooling 42 includes a centering cylinder 421 installed on the inner side of the lower gear ring 22, and a clamping plate 422 is provided on the output end of the centering cylinder 421. The two centering cylinders 421 are driven by the same drive structure. In this embodiment, the drive structure is a linkage structure of the chain and the gear drive end, which is a prior art and will not be described here.

[0033] It should be emphasized that a set of limiting parts is also provided on the inner side of the upper gear ring 23, which has a similar function to the centering clamping fixture 42 and will not be described in detail here, thereby cooperating with the workpiece fixing parts to form a four-end positioning fixation.

[0034] During the opening and closing process of the upper gear ring 23, it is necessary to realize its opening and closing through the hinge 311. Specifically, the hinge 311 includes a hydraulic cylinder 3111 hinged to the first mounting platform 11. The hydraulic cylinder 3111 is connected to the L-shaped fixing member 312 through a folding wire frame 3112. The junction of the first bending section and the second bending section of the folding wire frame 3112 is hinged to the extension pile of the first mounting platform 11. Two pulleys are provided at the bottom of the L-shaped fixing member 312. The inner side wall of the pulley is in contact with the upper gear ring 23, thereby driving the upper gear ring 23 to move up and down during the lifting and lowering of the hydraulic cylinder 3111.

[0035] However, during the rotation of the gear structure composed of the upper ring gear 23 and the lower ring gear 22, it is obviously insufficient to drive and maintain stability only by two driving parts 21, which can easily lead to insufficient support force of the ring gear on the workpiece, and abnormal noises and even partial structural deformation during rotation. Therefore, the utility model also provides a movable guide structure based on the ring gear displacement structure 20, and guides and supports the upper ring gear 23 and the lower ring gear 22 through the upper displacement component 31 and the lower displacement component 32 on the movable guide structure, so that the eccentricity of the ring gear during rotation is more controllable, and the steering accuracy is higher while supporting multiple points.

[0036] When the cam 314 is in the unlocking state, the first engaging part 313 is unlocked and the second engaging part 313 is unlocked, so that the cam 314 can be unlocked.

[0037] When the cam 32 is in the unlocking state, the locking cam 321 is locked and the locking cam 3221 is unlocked, so the cam 321 can be unlocked when the cam 321 is unlocked.

[0038] The lower mating teeth and the upper mating teeth 3132 are both driven to rotate by a motor.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A ring gear positioner, characterized in that: include: A mounting seat (10) fixed on the mounting surface, wherein a first mounting platform (11) and a second mounting platform (12) are respectively fixedly connected to two sides of the mounting seat (10); The gear ring displacement structure (20) comprises two driving members (21) arranged on the mounting seat (10), a lower gear ring (22) is movably mounted on the inner side of the mounting seat (10), a workpiece fixing member is arranged on the inner side of the lower gear ring (22), an upper gear ring (23) is movably mounted on the opening at the upper end of the lower gear ring (22), the upper gear ring (23) is opened and closed by an upper displacement mechanism (24), the upper gear ring (23) and the lower gear ring (22) form a chamber for accommodating the workpiece, and when the driving member (21) rotates, the upper gear ring (23) and the lower gear ring (22) drive the workpiece to rotate circumferentially; A movable guide structure, wherein an upper meshing wheel is provided on the side of the upper gear ring (23), and at least one lower meshing wheel (221) is provided on the side of the lower gear ring (22). The movable guide structure includes an upper shifting component (31) provided at the end of an upper shifting mechanism (24). When the upper gear ring (23) is in its original position, the upper shifting component (31) is engaged with the upper meshing wheel. A lower shifting component (32) is provided on the second mounting platform (12). When the lower gear ring (22) is in its original position, the lower shifting component (32) is engaged with the lower meshing wheel (221).

2. A ring gear positioner according to claim 1, characterized in that: The upper displacement assembly (31) comprises a hinged member (311) movably mounted on the first mounting platform (11); the end of the hinged member (311) is locked with an L-shaped fixing member (312); the L-shaped fixing member (312) is hinged with a first movable fitting member (313); and the first movable fitting member (313) is movably fitted with the upper meshing wheel.

3. A ring gear positioner according to claim 2, characterized in that: The first movable fitting part (313) includes a swing plate (3131) hinged on the outside of one end of the long axis of the L-shaped fixing part (312), at least two upper fitting teeth (3132) are installed on the inner side of the swing plate (3131), and the other corner of the top of the swing plate (3131) is connected to an upward push cylinder (3133), and the upward push cylinder (3133) is hingedly installed on the short axis of the L-shaped fixing part (312).

4. The ring gear positioner according to claim 1, characterized in that: The lower displacement assembly (32) includes a connecting seat (321) fixedly connected to the second mounting platform (12), a second movable fitting member (322) is hingedly mounted on the connecting seat (321), the bottom end of the second movable fitting member (322) is hingedly connected to the second mounting platform (12), and the second movable fitting member (322) is movably engaged with the lower meshing wheel (221).

5. The ring gear positioner according to claim 4, characterized in that: The second movable fitting (322) includes a side swing plate (3221) hinged on the second mounting platform (12), at least two lower matching teeth are installed on the inner side of the side swing plate (3221), the left corner of the side swing plate (3221) is connected to a side push cylinder (3223), and the side push cylinder (3223) is hingedly installed on the connecting seat (321).

6. The ring gear positioner according to claim 1, characterized in that: The workpiece fixing part comprises a lower positioning tool (41) arranged at the bottom of the inner side of the lower gear ring (22), and a centering clamping tool (42) is arranged on both the left and right sides of the inner side of the lower gear ring (22).

7. The ring gear positioner according to claim 6, characterized in that: The centering clamping tool (42) comprises a centering cylinder (421) installed on the inner side of the lower gear ring (22), a clamping plate (422) is provided on the output end of the centering cylinder (421), and the two centering cylinders (421) are driven by the same driving structure.

8. The ring gear positioner according to claim 2, characterized in that: The hinged member (311) comprises a hydraulic cylinder (3111) hinged to the first mounting platform (11); the hydraulic cylinder (3111) is connected to the L-shaped fixing member (312) via a folding frame (3112); the junction between the first bending section and the second bending section of the folding frame (3112) is hinged to the extension pile of the first mounting platform (11).

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