Rotary clamp

Abstract

The utility model provides a rotary clamp and relates to the technical field of clamps, the rotary clamp provided by the utility model comprises a fixed part, a rotary cylinder and a driving mechanism, the fixed part comprises a fixed cylinder, and an annular guide rail is arranged on the inner wall of the fixed cylinder; the rotating cylinder is located in the fixed cylinder, a supporting pulley is arranged on the outer wall of the rotating cylinder, and the supporting pulley is in sliding connection with the annular track so that the rotating cylinder can rotate around the axis of the rotating cylinder relative to the fixed cylinder; a pipe fitting to be machined is fixed in the rotating cylinder; the driving mechanism is connected with the rotating cylinder and used for driving the rotating cylinder to rotate relative to the fixed cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a rotary jig. Background Art

[0002] In the field of nuclear power plant installation, before the cable laying work starts, the installation of cable trays and brackets is carried out first. Before the installation of the brackets, the steel parts need to be cut, polished, welded and painted for protection before the installation of the brackets. During the grinding, welding and painting of the steel parts, manual flipping of the steel parts is required to process all aspects of the steel parts.

[0003] Due to the large weight of such steel parts, manual flipping is time-consuming and laborious, seriously affecting the working efficiency of grinding, welding and painting of steel parts. At the same time, during manual flipping, it is easy to be scalded, causing different degrees of wear to the steel parts, resulting in subsequent wear repair work. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a rotary jig to alleviate the technical problems such as low efficiency caused by manual flipping of pipe fittings and danger to workers.

[0005] In a first aspect, a rotary jig provided by the utility model includes:

[0006] A fixing part, the fixing part includes a fixing cylinder, and an annular guide rail is arranged on the inner wall of the fixing cylinder;

[0007] A rotating cylinder, the rotating cylinder is located inside the fixing cylinder, and a supporting pulley is arranged on the outer wall of the rotating cylinder. The supporting pulley is slidably connected with the annular track so that the rotating cylinder can rotate relative to the fixing cylinder around the axis of the rotating cylinder; the pipe fitting to be processed is fixed inside the rotating cylinder;

[0008] A driving mechanism, the driving mechanism is connected with the rotating cylinder and is used to drive the rotating cylinder to rotate relative to the fixing cylinder.

[0009] Further, the fixing part further includes a workbench, the fixing cylinder is connected with the workbench, and the control panel of the driving mechanism is arranged on the workbench.

[0010] Further, rollers are arranged on the supporting legs of the workbench.

[0011] Further, the driving mechanism includes a motor, a transmission belt, a first belt pulley and a second belt pulley. The first belt pulley is connected with the output shaft of the motor, the second belt pulley is wound around the outer wall of the rotating cylinder, and the transmission belt is respectively connected with the first belt pulley and the second belt pulley.

[0012] Further, a fixing structure is provided on the rotating cylinder, and the fixing structure is used to fix the pipe fitting to be processed to the rotating cylinder.

[0013] Further, the rotating cylinder is provided with a screw hole penetrating through the inside and outside, and the fixing structure includes a wrench threadedly connected to the screw hole, and one end of the wrench located inside the rotating cylinder is used to abut against the pipe fitting to be processed.

[0014] Further, an elastic structure is provided at one end of the wrench for abutting against the pipe fitting to be processed, so as to avoid damaging the pipe fitting to be processed.

[0015] Further, there are at least two annular guide rails.

[0016] Further, the number of supporting pulleys in each annular guide rail is at least three.

[0017] Further, the cross-sectional shape of the rotating cylinder is circular or square.

[0018] The utility model at least has the following advantages or beneficial effects:

[0019] The rotating fixture provided by the utility model includes a fixing part, a rotating cylinder and a driving mechanism. The fixing part includes a fixing cylinder, and an annular guide rail is provided on the inner wall of the fixing cylinder; the rotating cylinder is located inside the fixing cylinder, and supporting pulleys are provided on the outer wall of the rotating cylinder, and the supporting pulleys are slidably connected to the annular track so that the rotating cylinder can rotate relative to the fixing cylinder around the axis of the rotating cylinder; the pipe fitting to be processed is fixed inside the rotating cylinder; the driving mechanism is connected to the rotating cylinder and is used to drive the rotating cylinder to rotate relative to the fixing cylinder.

[0020] Workers can first place the pipe fitting to be processed into the rotating cylinder, and both ends of the pipe fitting to be processed are exposed. After the pipe fitting to be processed is fixed, the driving mechanism is started, and the driving mechanism drives the rotating cylinder to rotate relative to the fixing cylinder, which can quickly improve the efficiency of grinding, welding and painting of the pipe fitting to be processed. At the same time, it can also solve the safety hazard of workers being scalded by the just-ground and welded pipe fitting to be processed, and avoid the repair work of the wear of the pipe fitting to be processed during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1Schematic diagram of a perspective of the rotary fixture provided by an embodiment of the present utility model (the fixed cylinder is treated with perspective);

[0023] Figure 2 Schematic diagram of another perspective of the rotary fixture provided by an embodiment of the present utility model (the fixed cylinder is treated with perspective).

[0024] Icons: 110 - fixed cylinder; 111 - annular guide rail; 120 - angle steel;

[0025] 200 - rotary cylinder; 210 - support pulley; 220 - wrench

[0026] 300 - pipe fitting to be processed;

[0027] 410 - control panel; 420 - motor; 430 - transmission belt; 440 - first pulley; 450 - second pulley. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0032] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] As Figure 1 and Figure 2 shown, the rotary fixture provided by the present utility model includes a fixed part, a rotary cylinder 200, and a driving mechanism.

[0035] The fixed part may include a workbench (not shown) and a fixed cylinder 110. The fixed cylinder 110 can be connected to the tabletop of the workbench through a plurality of angle steels 120. The angle steels 120 and the workbench can be connected by bolts, while the fixed cylinder 110 and the angle steels 120 can be connected by welding. Rollers can be provided on the support legs of the workbench. The rollers have a locking function and can selectively switch between the free rolling state and the locking state, which is convenient for workers to work.

[0036] An annular guide rail 111 is provided on the inner wall of the fixed cylinder 110. The annular guide rail 111 is in a groove shape and can be composed of two annular rings arranged at intervals along the axial direction. The annular guide rail 111 is welded to the inner wall of the fixed cylinder 110.

[0037] The rotating cylinder 200 is located inside the fixed cylinder 110. Support pulleys 210 are provided on the outer wall of the rotating cylinder 200. The support pulleys 210 are located in the grooves formed between two annular rings and are slidably connected to the annular track. The rotating cylinder 200 can rotate relative to the fixed cylinder 110 about the axis of the rotating cylinder 200.

[0038] The pipe fitting 300 to be processed is fixed inside the rotating cylinder 200. The shape and size of the pipe fitting 300 to be processed can be set to be roughly the same as those of the rotating cylinder 200. For example, if the pipe fitting 300 to be processed is a square pipe and the cross-sectional shape of the pipe fitting 300 to be processed is square, then the rotating cylinder 200 can be a square pipe with an inner diameter slightly larger than that of the pipe fitting 300 to be processed.

[0039] The driving mechanism is connected to the rotating cylinder 200 and is used to drive the rotating cylinder 200 to rotate relative to the fixed cylinder 110. The driving mechanism is an electric driving module, which avoids manual flipping and improves efficiency.

[0040] Workers can first place the pipe fitting 300 to be processed into the rotating cylinder 200, with both ends of the pipe fitting 300 to be processed exposed. After the pipe fitting 300 to be processed is fixed, the driving mechanism is started. The driving mechanism drives the rotating cylinder 200 to rotate relative to the fixed cylinder 110, quickly improving the efficiency of grinding, welding, and painting of the pipe fitting 300 to be processed. At the same time, it can also solve the safety hazard of workers being scalded by the pipe fitting 300 to be processed that has just been ground and welded, and avoid the repair work of the wear of the pipe fitting 300 to be processed during the flipping process.

[0041] For the convenience of operation, the control panel 410 of the driving mechanism can be set on the workbench.

[0042] The driving mechanism includes a motor 420, a transmission belt 430, a first pulley 440, and a second pulley 450. The first pulley 440 is connected to the output shaft of the motor 420. The second pulley 450 is wound around the outer wall of the rotating cylinder 200. The transmission belt 430 is respectively connected to the first pulley 440 and the second pulley 450. The motor 420 drives the first pulley 440 to rotate. The first pulley 440 drives the transmission belt 430 to rotate. The transmission belt 430 then drives the second pulley 450 to rotate. The second pulley 450 has the same rotation state as the rotating cylinder 200. Therefore, the rotation of the rotating cylinder 200 is realized.

[0043] The second pulley 450 can be set outside the fixed cylinder 110; two through holes for the transmission belt 430 to pass through can also be opened on the fixed cylinder 110. Then the second pulley 450 is set inside the fixed cylinder 110, and the transmission belt 430 passes through the fixed cylinder 110 and is connected to the second pulley 450 inside it.

[0044] A fixing structure is provided on the rotating cylinder 200, and the fixing structure is used to fix the pipe fitting 300 to be processed to the rotating cylinder 200. Specifically, screw holes penetrating the inside and outside are provided on the rotating cylinder 200, and the fixing structure includes a wrench 220 threadedly connected to the screw holes. The worker rotates the wrench 220 outward from the rotating cylinder 200, inserts the pipe fitting 300 to be processed into the rotating cylinder 200 from one end opening of the rotating cylinder 200, and then tightens the wrench 220 so that one end of the wrench 220 abuts against the pipe fitting 300 to be processed. The wrench 220 and the inner wall of the rotating cylinder 200 press the pipe fitting 300 to be processed together, thereby realizing the fixation of the pipe fitting 300 to be processed. The number of wrenches 220 on the rotating cylinder 200 can be two, and the pipe fitting 300 to be processed is fixed from both ends thereof.

[0045] An elastic structure, such as an elastic sleeve or an elastic pad, is provided at one end of the wrench 220 for abutting against the pipe fitting 300 to be processed, so as to avoid damaging the pipe fitting 300 to be processed.

[0046] There are at least two annular guide rails 111. The two annular tracks can be spacedly arranged at both ends of the fixed cylinder 110, so as to improve the rotation stability of the rotating cylinder 200. At the same time, the number of support pulleys 210 in each annular guide rail 111 is at least three. And the support pulley 210 can be a universal spring pulley to improve the vibration damping effect.

[0047] The cross-sectional shape of the rotating cylinder 200 is circular or square, corresponding to the pipe fitting 300 to be processed with a square or circular cross-section respectively.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary fixture, characterized in that, Comprising: A fixing part, the fixing part includes a fixing cylinder (110), and an annular guide rail (111) is arranged on the inner wall of the fixing cylinder (110); A rotating cylinder (200), the rotating cylinder (200) is located inside the fixing cylinder (110), a support pulley (210) is arranged on the outer wall of the rotating cylinder (200), and the support pulley (210) is slidably connected to the annular guide rail so that the rotating cylinder (200) can rotate relative to the fixing cylinder (110) around the axis of the rotating cylinder (200); A pipe fitting to be processed (300) is fixed inside the rotating cylinder (200); A driving mechanism, the driving mechanism is connected to the rotating cylinder (200) and is used to drive the rotating cylinder (200) to rotate relative to the fixing cylinder (110).

2. The rotary fixture according to claim 1, wherein The fixing part further includes a workbench, the fixing cylinder (110) is connected to the workbench, and a control panel (410) of the driving mechanism is arranged on the workbench.

3. The rotary jig according to claim 2, wherein, Rollers are arranged on the support legs of the workbench.

4. The rotary jig according to claim 1, wherein The driving mechanism includes a motor (420), a transmission belt (430), a first pulley (440) and a second pulley (450), the first pulley (440) is connected to the output shaft of the motor (420), the second pulley (450) is wound around the outer wall of the rotating cylinder (200), and the transmission belt (430) is respectively connected to the first pulley (440) and the second pulley (450).

5. The rotary fixture according to claim 1, wherein A fixing structure is arranged on the rotating cylinder (200), and the fixing structure is used to fix the pipe fitting to be processed (300) to the rotating cylinder (200).

6. The rotary jig according to claim 5, wherein A through screw hole is arranged on the rotating cylinder (200), and the fixing structure includes a wrench (220) threadedly connected to the screw hole, and one end of the wrench (220) located inside the rotating cylinder (200) is used to abut against the pipe fitting to be processed (300).

7. The rotary jig according to claim 6, characterized in that, An elastic structure is arranged at one end of the wrench (220) for abutting against the pipe fitting to be processed (300) to avoid damaging the pipe fitting to be processed (300).

8. The rotary fixture according to claim 1, characterized in that There are at least two annular guide rails (111).

9. The rotary jig according to claim 1, characterized in that The number of support pulleys (210) in each annular guide rail (111) is at least three.

10. The rotary jig according to claim 1, characterized in that, The cross-sectional shape of the rotating cylinder (200) is circular or square.

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