Unidirectional constant-angle automatic rotating device

Abstract

The utility model discloses a one-way constant-angle automatic rotating device, and relates to the technical field of railway electric vehicle set manufacturing. The base is fixed to the tool guide rail beam, a rotating disc is rotatably arranged on the top face of the base through a rotating shaft, a plurality of stopping plates of different sizes are evenly arranged on the outer side of the rotating disc at intervals in a surrounding mode, and the stopping plates are rectangular plates; the hydraulic cylinder is arranged on the tool guide rail beam through a hydraulic cylinder support and is in transmission connection with the rotating shaft; the tool base is arranged on the tool guide rail beam in a sliding mode, and the tool base is driven by an air cylinder arranged on the tool guide rail beam and slides on the tool guide rail beam. The tool base and the hydraulic cylinder are located on the two sides of the base respectively. The included angles between the center lines of the adjacent stopping plates are the same. Different stopping plates can be replaced through one-way rotation, conversion of production requirements of different vehicle types is achieved, and the production efficiency is effectively improved while accurate positioning is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of railway electric multiple unit manufacturing, and in particular to a one-way constant-angle automatic rotation device. Background Art

[0002] At present, after a period of leapfrog development in railways, the EMU manufacturing industry has entered a stable stage. Various orders are characterized by small batches and alternating production of multiple models. In order to save manufacturing costs, the same set of tooling is used to produce different models.

[0003] In many toolings for welding and processing large aluminum alloy components, tooling seats for different car models have multiple positions, and the positions are all changed by driving the tooling seats with screws and nuts, which is time-consuming, labor-intensive, and has low work efficiency.

[0004] Therefore, in order to meet various production needs, a one-way constant angle automatic rotation device is now provided. Summary of the Invention

[0005] In response to the defects existing in the prior art, the purpose of this application is to provide a one-way constant-angle automatic rotation device that can replace different stop plates through one-way rotation, thereby realizing the conversion of production requirements of different vehicle models, while ensuring accurate positioning and effectively improving production efficiency.

[0006] In order to achieve the above objectives, the technical solution adopted by this application is:

[0007] The present application provides a unidirectional constant angle automatic rotation device, the device comprising:

[0008] Tooling guide beam;

[0009] A base fixed on the tooling guide rail beam, a turntable rotatably provided on the top surface of the base via a rotating shaft, a plurality of stop plates of different sizes evenly spaced around the outer side of the turntable, the stop plates being rectangular plates;

[0010] A hydraulic cylinder is provided on the tooling guide rail beam via a hydraulic cylinder support, and the hydraulic cylinder is transmission-connected to the rotating shaft;

[0011] A tooling seat is slidably arranged on the tooling guide rail beam, and the tooling seat is driven by a cylinder configured on the tooling guide rail beam to slide on the tooling guide rail beam;

[0012] The tooling seat and the hydraulic cylinder are respectively located on both sides of the base; wherein,

[0013] The included angles between the center lines of adjacent stop plates are the same.

[0014] On the basis of the above technical solution, the telescopic end of the hydraulic cylinder is provided with a rack;

[0015] The bottom surface of the base is provided with a gear sleeved on the rotating shaft, and the rack is matched with the gear.

[0016] On the basis of the above technical solution, a rack guide limit block is provided on the bottom surface of the base;

[0017] A strip-shaped slot is provided on one side of the rack;

[0018] When the rack is extended and retracted by the hydraulic cylinder, the rack guide limit block slides in the strip-shaped slot. When the rack guide limit block abuts against one end of the strip-shaped slot, the movement of the rack is restricted.

[0019] On the basis of the above technical solution, a one-way clutch is provided between the gear and the rotating shaft;

[0020] The one-way clutch is used to control the gear to drive the rotating shaft to rotate in a preset rotation direction.

[0021] On the basis of the above technical solution, both ends of the cylinder are fixed on the tooling guide rail beam through a first pull seat and a second pull seat respectively.

[0022] On the basis of the above technical solution, a first pull seat and a second pull seat are respectively provided at both ends of the cylinder;

[0023] The first pull seat is fixed to the bottom surface of the base;

[0024] The second pull seat is fixed on the tooling guide rail beam.

[0025] On the basis of the above technical solution, a ball head spring plug is provided on the bottom surface of the base;

[0026] The bottom of the turntable is provided with a plurality of pits;

[0027] One of the recesses corresponds to one of the stop plates;

[0028] When the turntable rotates to cause the ball stud spring plug to sink into the pit, the stop plate corresponding to the pit faces the tooling seat.

[0029] On the basis of the above technical solution, a rotating shaft sleeve is provided on the outside of the rotating shaft;

[0030] The rotating shaft sleeve is fixedly connected to the base.

[0031] On the basis of the above technical solution, the hydraulic cylinder drives the rack to move via a pin shaft.

[0032] Compared with the prior art, the advantages of this application are:

[0033] This application can replace different stop plates through one-way rotation to achieve the conversion of production needs of different models, while ensuring accurate positioning and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 This is a schematic structural diagram of a one-way constant angle automatic rotation device according to an embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of the tooling seat of the one-way constant angle automatic rotation device in the embodiment of the present application in the pushed-out state;

[0037] Figure 3 A cross-sectional view of a one-way constant-angle automatic rotation device according to an embodiment of the present application;

[0038] Figure 4 A top view of a one-way constant-angle automatic rotation device according to an embodiment of the present application;

[0039] Figure 5 A three-dimensional schematic diagram from the bottom perspective of the one-way constant-angle automatic rotation device according to an embodiment of the present application;

[0040] Figure 6 A schematic structural diagram of a rack of a one-way constant-angle automatic rotation device according to an embodiment of the present application;

[0041] Figure 7 A schematic structural diagram of a one-way clutch in a one-way constant angle automatic rotation device according to an embodiment of the present application;

[0042] Figure 8 This is a schematic diagram of the assembly structure of the turntable, rotating shaft, stop plate and gear in the one-way constant angle automatic rotation device of an embodiment of the present application;

[0043] Figure 9 This is a schematic diagram of the assembly structure of the base, turntable, ball stud spring plug, and gear in the one-way constant angle automatic rotation device of an embodiment of the present application;

[0044] Figure 10 This is a schematic structural diagram of a turntable in a one-way constant angle automatic rotation device according to an embodiment of the present application;

[0045] In the picture:

[0046] 1. Tooling guide rail beam; 2. Tooling seat; 3. Base; 4. Turntable; 5. Rotating shaft; 6. Stop plate; 7. Rack; 70. Bar slot; 8. Hydraulic cylinder; 9. Hydraulic cylinder support; 10. Cylinder; 11. Shaft retaining ring; 12. Ball stud spring plug; 13. One-way clutch; 130. Outer ring; 131. Inner ring; 132. Outer ring keyway; 133. Inner ring keyway; 14. Gear; 15. Pit; 16. Pin; 17. Pressure cover; 18. Shaft retaining ring; 19. First pull seat; 20. Second pull seat; 21. Flat key one; 22. Flat key two; 23. Flat key three; 24. Rack guide limit block; 25. Rotating shaft sleeve. DETAILED DESCRIPTION

[0047] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0049] The embodiment of the present application provides a one-way constant-angle automatic rotation device, which can replace different stop plates through one-way rotation, realize the conversion of production requirements of different vehicle models, and effectively improve production efficiency while ensuring accurate positioning.

[0050] To achieve the above technical effects, the overall idea of this application is as follows:

[0051] A unidirectional constant angle automatic rotation device, comprising:

[0052] Tooling guide beam 1;

[0053] A base 3 is fixed on the tooling guide rail beam 1, and a turntable 4 is rotatably provided on the top surface of the base 3 via a rotating shaft 5. A plurality of stop plates 6 of different sizes are evenly spaced around the outer side of the turntable 4, and the stop plates 6 are rectangular plates;

[0054] A hydraulic cylinder 8 is provided on the tooling guide rail beam 1 via a hydraulic cylinder support 9, and the hydraulic cylinder 8 is transmission-connected to the rotating shaft 5;

[0055] A tooling seat 2 is slidably arranged on the tooling guide rail beam 1, and the tooling seat 2 is driven by a cylinder 10 configured on the tooling guide rail beam 1 to slide on the tooling guide rail beam 1;

[0056] The tooling seat 2 and the hydraulic cylinder 8 are respectively located on both sides of the base 3; wherein,

[0057] The included angles between the center lines of adjacent stop plates 6 are the same.

[0058] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0059] See also Figures 1 to 10 As shown, the present application provides a one-way constant angle automatic rotation device, which includes:

[0060] Tooling guide beam 1;

[0061] A base 3 is fixed on the tooling guide rail beam 1, and a turntable 4 is rotatably provided on the top surface of the base 3 via a rotating shaft 5. A plurality of stop plates 6 of different sizes are evenly spaced around the outer side of the turntable 4, and the stop plates 6 are rectangular plates;

[0062] A hydraulic cylinder 8 is provided on the tooling guide rail beam 1 via a hydraulic cylinder support 9, and the hydraulic cylinder 8 is transmission-connected to the rotating shaft 5;

[0063] A tooling seat 2 is slidably arranged on the tooling guide rail beam 1, and the tooling seat 2 is driven by a cylinder 10 configured on the tooling guide rail beam 1 to slide on the tooling guide rail beam 1;

[0064] The tooling seat 2 and the hydraulic cylinder 8 are respectively located on both sides of the base 3; wherein,

[0065] The included angles between the center lines of adjacent stop plates 6 are the same.

[0066] Furthermore, the telescopic end of the hydraulic cylinder 8 is provided with a rack 7;

[0067] The bottom surface of the base 3 is provided with a gear 14 sleeved on the rotating shaft 5 , and the rack 7 is matched with the gear 14 .

[0068] Furthermore, a rack guide limit block 24 is provided on the bottom surface of the base 3;

[0069] A strip-shaped slot 70 is provided on one side of the rack 7;

[0070] When the rack 7 is extended and retracted by the hydraulic cylinder 8 , the rack guide limit block 24 slides in the strip-shaped slot 70 . When the rack guide limit block 24 abuts against one end of the strip-shaped slot 70 , the movement of the rack 7 is restricted.

[0071] Furthermore, a one-way clutch 13 is provided between the gear 14 and the rotating shaft 5;

[0072] The one-way clutch 13 is used to control the gear 14 to drive the rotating shaft 5 to rotate in a preset rotation direction.

[0073] Furthermore, both ends of the cylinder 10 are fixed on the tooling guide rail beam 1 through a first pull seat 19 and a second pull seat 20 respectively.

[0074] Furthermore, a first pull seat 19 and a second pull seat 20 are respectively provided at both ends of the cylinder 10;

[0075] The first pull seat 19 is fixed to the bottom surface of the base 3;

[0076] The second pull seat 20 is fixed on the tooling guide rail beam 1 .

[0077] Furthermore, a ball-stud spring plug 12 is provided on the bottom surface of the base 3;

[0078] The bottom of the turntable 4 is provided with a plurality of pits 15;

[0079] One of the recesses 15 corresponds to one of the stop plates 6;

[0080] When the turntable 4 rotates to cause the ball stud spring plug 12 to sink into the pit 15 , the stop plate 6 corresponding to the pit 15 faces the tooling seat 2 .

[0081] Furthermore, a shaft sleeve 25 is provided on the outside of the shaft 5;

[0082] The rotating shaft sleeve 25 is fixedly connected to the base 3 .

[0083] Furthermore, the hydraulic cylinder 8 drives the rack 7 to move via the pin 16 .

[0084] In summary, the advantages of the technical solutions of the embodiments of the present application are:

[0085] Since the stop plates 6 are of different lengths, multiple stop plates 6 are installed on the turntable 4. Each time the turntable 4 rotates to a fixed value of 90 degrees, the stop plate 6 can be switched to a working state, instead of using a screw to push the tooling seat to change position. This eliminates the risk of poor tooling seat position accuracy caused by the gap between the screw and the nut, greatly reduces the labor intensity of workers and improves production efficiency.

[0086] The technical solution of the embodiment of the present application is implemented as follows:

[0087] The length of the major components of the EMU body generally ranges from 20 meters to 26 meters. During production, 14 to 18 sets of this device are required.

[0088] like Figure 1 and Figure 2As shown, the tooling seat 2 is suitable for multiple vehicle models, and there are multiple positioning positions on the tooling guide beam 1. The function of this device is to automatically move the tooling seat 2 to the correct positioning position, reducing the labor intensity of workers and significantly reducing the adjustment time.

[0089] like Figure 3 As shown, the cylinder 10 pulls the tooling seat 2 against the stop plate 6 through the second pull seat 20 connected to the tooling seat 2, showing the tooling seat 2 in a positioned working state; the base 3 and the hydraulic cylinder support 9 are fixed to the tooling guide rail beam 1;

[0090] The rotating shaft sleeve 25 is fixed to the base 3 with screws. The rotating shaft 5 and the rotating shaft sleeve 25 are matched with high precision. The rotating shaft 5 can rotate but does not shake.

[0091] like Figure 4 As shown, the gear 14 and the rack 15 adopt high-precision gapless meshing transmission. The rack 15 can be extended and retracted under the action of the hydraulic cylinder 8. The length of each extension can make the gear 14 rotate 90 degrees; the rack 15 moves in the rack guide limit block 24.

[0092] like Figure 5 As shown, the rack 15 has a slot, the length of which is exactly equal to the sum of the length of the rack guide limit block 24 and the diameter of the pitch circle of the quarter gear 14, thereby ensuring that the rack 15 can rotate the gear 14 90 degrees when it is extended once.

[0093] like Figure 6 As shown, the one-way clutch 13, the gear 14 and the rotating shaft 5 are fixed together by the flat key 22 and the flat key 3 23; the turntable 4 and the rotating shaft 5 are fixed together by the flat key 1 21;

[0094] The above two parts and the rotating shaft 5 together form component 1 through the shaft retaining ring 11, the shaft retaining ring 18, the pressure cover 17, the stop plate 6, etc., wherein the stop plate 6 is multiple pieces with different lengths corresponding to different vehicle models, and the installation screws are in the groove of the turntable 4.

[0095] like Figure 7 As shown, the one-way clutch 13 consists of an inner ring and an outer ring, and both the inner and outer rings have keyways. The outer ring can only rotate in one direction relative to the inner ring and cannot rotate in the reverse direction. Based on the reverse rotation principle of the one-way clutch 13, Figure 6 In the illustrated component 1, the gear 14 and the turntable 5 can only rotate in one direction driven by the rack 15 and cannot rotate in the reverse direction. This is the key point for the smooth operation of the device.

[0096] It should be noted that Figure 7 Schematic diagram of the one-way clutch 13 , which includes an outer ring 130 and an inner ring 131 disposed inside the outer ring 130 , wherein the outer ring is configured with an outer ring keyway 132 , and the inner ring 131 is configured with an inner ring keyway 133 .

[0097] like Figure 8 and Figure 9 As shown, a ball-head spring plug 12 is installed on the base 3. There is a spring inside the ball-head spring plug 12, and the ball on it can be retracted into the body under external force;

[0098] There are four pits at the bottom of the turntable 5. After assembly, the ball stud spring plug 12 is just against one of the pits on the turntable 5. Every time the turntable 5 rotates 90 degrees, the ball stud spring plug 12 will then be against the next pit. The purpose of this design is to provide damping for the turntable so that the one-way clutch 13 can rotate smoothly in one direction.

[0099] If the tooling seat 2 is to be moved to another position to change the vehicle model, such as Figure 2 and Figure 3 As shown, the entire transformation process is as follows:

[0100] Step 1: The rodless chamber of the cylinder 10 is inflated, and the cylinder piston rod extends to push the tooling seat 2 away from the stop plate 6. At this time, the tooling seat 2 does not affect the rotation of the turntable 5.

[0101] In step 2, the rodless chamber of the hydraulic cylinder 8 is filled with oil, and the rack 15 is driven to move to the right through the pin shaft 16. Under the non-return action of the one-way clutch 13, the gear 14 drives the turntable 5 to rotate 90 degrees, and the next stop plate 6 is rotated to the working position. At the same time, the ball head spring plug 12 is pressed into the next pit of the turntable 5.

[0102] In step 3, the rod chamber of the cylinder 10 is inflated and the rodless chamber is exhausted. The cylinder piston rod drives the tooling seat 2 to retreat and dock on the new stop plate 6, thereby changing the position of the tooling seat 2.

[0103] In step 4, if the stop plate 6 to be selected happens to be not adjacent to the original stop plate and the turntable 5 needs to be rotated 180 degrees or 270 degrees, step 3 is not executed temporarily. First, the rod chamber of the hydraulic cylinder 8 is filled with oil and the rodless chamber is drained. At this time, the one-way clutch 13 is in a rotatable state, and the ball stud spring plug 12 provides a damping effect on the turntable 5, which can keep the turntable 5 stationary.

[0104] Step 5: After the rack 15 is fully retracted, the operation of step 2 is performed again to turn the non-adjacent stop plate 6 to the working position. The appropriate stop plate can be selected by multiple operations.

[0105] Step 6, finally carry out step 3, return the tooling seat 2 and dock it on the selected stop plate to complete the entire vehicle model change operation.

[0106] In addition, if there are many types of vehicles, for example, if a 60-degree change is required, the number of stopper plate slots of the turntable is changed to 6, and the length of the slot of the rack 15 is changed at the same time. According to the same operation, a 60-degree change can be achieved.

[0107] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0108] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0109] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A one-way constant angle automatic rotation device, characterized in that: The one-way constant angle automatic rotation device comprises: Tooling guide rail beam (1); A base (3) is fixed on the tooling guide rail beam (1), a turntable (4) is rotatably provided on the top surface of the base (3) via a rotating shaft (5), a plurality of stop plates (6) of different sizes are evenly arranged at intervals around the outer side of the turntable (4), and the stop plates (6) are rectangular plates; A hydraulic cylinder (8) is arranged on the tooling guide rail beam (1) via a hydraulic cylinder support (9), and the hydraulic cylinder (8) is in transmission connection with the rotating shaft (5); A tooling seat (2) is slidably arranged on the tooling guide rail beam (1), and the tooling seat (2) is driven by a cylinder (10) arranged on the tooling guide rail beam (1) to slide on the tooling guide rail beam (1); The tooling seat (2) and the hydraulic cylinder (8) are respectively located on both sides of the base (3); wherein, The included angles between the center lines of adjacent stop plates (6) are the same.

2. The one-way constant angle automatic rotation device according to claim 1, characterized in that: The telescopic end of the hydraulic cylinder (8) is provided with a rack (7); The bottom surface of the base (3) is provided with a gear (14) sleeved on the rotating shaft (5), and the rack (7) is matched with the gear (14).

3. The one-way constant angle automatic rotation device according to claim 2, characterized in that: The bottom surface of the base (3) is provided with a rack guide limit block (24); A strip-shaped slot (70) is provided on one side of the rack (7); When the rack (7) is extended and retracted by the hydraulic cylinder (8), the rack guide limit block (24) slides in the strip-shaped slot (70); when the rack guide limit block (24) abuts against one end of the strip-shaped slot (70), the movement of the rack (7) is restricted.

4. The one-way constant angle automatic rotation device according to claim 2, characterized in that: A one-way clutch (13) is provided between the gear (14) and the rotating shaft (5); The one-way clutch (13) is used to control the gear (14) to drive the rotating shaft (5) to rotate in a preset rotation direction.

5. The one-way constant angle automatic rotation device according to claim 1, characterized in that: The two ends of the cylinder (10) are fixed on the tooling guide rail beam (1) through a first pull seat (19) and a second pull seat (20) respectively.

6. The one-way constant angle automatic rotation device according to claim 1, characterized in that: The two ends of the cylinder (10) are respectively provided with a first pull seat (19) and a second pull seat (20); The first pull seat (19) is fixed on the bottom surface of the base (3); The second pull seat (20) is fixed on the tooling guide rail beam (1).

7. The one-way constant angle automatic rotation device according to claim 1, characterized in that: A ball-head spring plug (12) is provided on the bottom surface of the base (3); The bottom of the turntable (4) is provided with a plurality of pits (15); One of the recesses (15) corresponds to one of the stop plates (6); When the turntable (4) rotates so that the ball head spring plug (12) sinks into the pit (15), the stop plate (6) corresponding to the pit (15) faces the tooling seat (2).

8. The one-way constant angle automatic rotation device according to claim 1, characterized in that: A rotating shaft sleeve (25) is provided on the outside of the rotating shaft (5); The rotating shaft sleeve (25) is fixedly connected to the base (3).

9. The one-way constant angle automatic rotation device according to claim 2, characterized in that: The hydraulic cylinder (8) drives the rack (7) to move via a pin shaft (16).

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