Automatic servo tightening system

Abstract

The utility model discloses an automatic servo tightening system which comprises a base, and a rotary assembly for driving a tightening shaft to rotate is arranged at the top end of the base. A distance changing assembly for changing the distance between the two tightening shafts is installed on the rotation assembly. Two in-situ bolt sleeves are symmetrically arranged on the rotary assembly, and mechanical in-situ detection pins used for checking the position precision of the rotary original point of the rotary assembly are assembled and connected in the in-situ bolt sleeves; according to the belt pulley tightening device, automatic operation of belt pulley tightening is achieved by arranging the rotation assembly and the variable pitch assembly, working efficiency is improved, the belt pulley tightening quality is guaranteed, and it is guaranteed that the rotation original point position can be checked in the rotation process of the rotation assembly by arranging the in-situ detection pin and the in-situ plug pin sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley tightening equipment, in particular to an automatic servo tightening system. Background Art

[0002] The automobile pulley is an important component of the normal operation of the engine, and it undertakes functions such as transmitting power and driving auxiliary systems. However, the tightening process of the pulley is generally done manually, which has low work efficiency. During the operation, it is also easy to ignore the assembly and tightening of certain positions, resulting in the inability to ensure the quality of the pulley itself, reducing the safety of the engine. In addition, the existing pulley tightening equipment cannot be reset well after multiple rotations and tightening during the tightening process of the pulley screw. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic servo tightening system, which can improve the efficiency of tightening the pulley, ensure the quality of the pulley, and at the same time ensure that the tightening shaft can be reset in time and accurately during the tightening process.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0005] An automatic servo tightening system comprises a base, a rotary assembly for driving a tightening shaft to rotate is arranged on the top of the base; a variable distance assembly for changing the distance between two rotary shafts is installed on the rotary assembly; two in-situ latch sleeves are symmetrically arranged on the rotary assembly, and a mechanical in-situ detection pin for checking the position accuracy of the rotary origin of the rotary assembly is assembled and connected inside the in-situ latch sleeves.

[0006] The above-mentioned automatic servo tightening system, the rotating assembly includes an L-shaped rotating bracket arranged on the top surface of the base, and the vertical part of the rotating bracket is connected to the ring gear plate through a number of bolt assemblies; the top of the vertical part of the rotating bracket is provided with a motor mounting frame for installing the rotating motor, and the output shaft of the rotating motor is connected to a driving gear, and the driving gear is meshed with the annular rack on the outer wall of the lower ring gear plate for transmission.

[0007] In the above-mentioned automatic servo tightening system, a detection mounting frame is arranged on the right side surface of the vertical part of the rotary bracket, a rotation-in-place detection switch is installed on the detection mounting frame, and a rotary tightening detection piece is arranged on the left side of the gear ring plate corresponding to the rotation-in-place detection switch.

[0008] The above-mentioned automatic servo tightening system, the pitch variable assembly includes a pitch variable motor installed on the gear ring plate, the output shaft of the pitch variable motor is connected to the first synchronous pulley, the first synchronous pulley is connected to the second synchronous pulley through a synchronous belt; the second synchronous pulley is connected to the trapezoidal lead screw through a bearing, and the two ends of the trapezoidal lead screw are respectively installed on the end surface of the gear ring plate through a first mounting seat and a second mounting seat; the threaded parts in different directions at both ends of the trapezoidal lead screw are respectively threadedly connected with the nut, the nut is arranged at the center of the connecting block, and the two sides of the connecting block are respectively connected to the moving seat and the tightening shaft, and the moving seat is slidably assembled with the slide rail arranged on the gear ring plate.

[0009] In the above-mentioned automatic servo tightening system, a first variable distance limit detector and a second variable distance limit detector for detecting the moving positions of the two moving seats are symmetrically arranged at the lower part of the gear ring plate.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0011] The utility model provides an automatic servo tightening system, which realizes the automatic operation of pulley tightening by arranging a rotary component and a variable pitch component, improves work efficiency, ensures the quality of pulley tightening, and also ensures that the rotary component can check the origin position of rotation during the rotation process by arranging an in-situ detection pin and an in-situ latch sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 for Figure 1 CC section view in the figure;

[0014] Figure 3 It is a left view of the utility model;

[0015] Figure 4 It is the right view of the utility model.

[0016] Wherein: 1. base, 2. slewing bracket, 3. cover plate, 4. in-situ latch sleeve, 5. in-situ detection pin, 6. tightening shaft, 7. gear ring plate, 8. driving gear, 9. motor mounting frame, 10. slewing motor, 11. variable pitch motor, 12. first synchronous pulley, 13. second synchronous pulley, 14. detection mounting frame, 15. rotation in place detection switch, 16. slewing tightening detection plate, 17. first variable pitch limit detector, 18. second variable pitch limit detector, 19. bolt assembly, 20. trapezoidal lead screw, 21. first mounting seat, 22. second mounting seat, 23. nut, 24. connecting block, 25. moving seat, 26. slide rail. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] An automatic servo tightening system, such as Figures 1 to 4 As shown, it includes a base 1, a rotating assembly for driving the tightening shaft 6 to rotate is arranged on the top of the base 1, and a variable distance assembly for changing the distance between the two tightening shafts 6 is installed on the rotating assembly.

[0019] The rotating assembly includes an L-shaped rotating bracket 2 arranged on the top surface of the base 1. The vertical part of the rotating bracket 2 is connected to the ring gear plate 7 through a plurality of bolt assemblies 19. The top of the vertical part of the rotating bracket 2 is provided with a motor mounting frame 9 for mounting a rotating motor 10. The output shaft of the rotating motor 10 is connected to a driving gear 8. The driving gear 8 is meshed with the annular rack on the outer wall of the ring gear plate 7 below for transmission, thereby driving the tightening shaft 6 to rotate for tightening.

[0020] A detection mounting frame 14 is arranged on the right side surface of the vertical part of the slewing bracket 2 , and a rotation-in-place detection switch 15 is installed on the detection mounting frame 14 . A rotation tightening detection piece 16 is arranged on the left side of the gear ring plate 7 corresponding to the rotation-in-place detection switch 15 .

[0021] The pitch-changing assembly comprises a pitch-changing motor 11 mounted on the gear ring plate 7 , the output shaft of the pitch-changing motor 11 is connected to a first synchronous pulley 12 , and the first synchronous pulley 12 is transmission-connected to a second synchronous pulley 13 via a synchronous belt.

[0022] The second synchronous belt wheel 13 is connected to the trapezoidal lead screw 20 through a bearing. When the variable pitch motor 11 is turned on, the first synchronous belt wheel drives the second synchronous belt wheel to rotate, and the second synchronous belt wheel drives the trapezoidal lead screw 20 to rotate.

[0023] Both ends of the trapezoidal lead screw 20 are mounted on the end surface of the gear ring plate 7 through a first mounting seat 21 and a second mounting seat 22 respectively.

[0024] The threaded parts at different directions at both ends of the trapezoidal screw rod 20 are respectively threadedly connected to the nut 23, the nut 23 is set in the center of the connecting block 24, the two sides of the connecting block 24 are respectively connected to the moving seat 25 and the tightening shaft 6, and the moving seat 25 is slidably assembled with the slide rail 26 set on the gear ring plate 7.

[0025] A first pitch limit detector 17 and a second pitch limit detector 18 for detecting the moving positions of the two moving seats 25 are symmetrically arranged at the lower part of the gear ring plate 7 .

[0026] When the trapezoidal screw rod 20 rotates, the two screw nuts 23 on the trapezoidal screw rod 20 move in opposite directions at the same time, driving the moving seat 25 to expand or contract, thereby adjusting the distance between the two rotating shafts 6 .

[0027] Two in-situ latch sleeves 4 are symmetrically installed on the left side surface of the vertical part of the L-shaped rotating bracket 2. The in-situ latch sleeves 4 are assembled and connected with the in-situ detection pin 5. The in-situ detection pin 5 is inserted into the in-situ latch sleeve 4 under the action of the cylinder, so as to perform mechanical in-situ calibration on the rotating assembly after rotation.

[0028] When the utility model is used, firstly, the distance between the two tightening shafts 6 is adjusted by the pitch-changing assembly to adapt to the size of the pulley, and the adjustment of the distance between the two tightening shafts 6 is terminated by two limit detectors.

[0029] Then, drive the rotary motor 10 to make the ring gear plate 7 drive the tightening shaft 6 to rotate, complete the tightening of the pulley, and drive the rotary motor 10 again to drive the ring gear plate 7 to rotate and reset, and ensure that the ring gear plate 7 can be accurately reset through the cooperation of the in-situ detection pin 5 and the in-situ latch sleeve 4.

[0030] The utility model provides an automatic servo tightening system, which realizes the automatic operation of pulley tightening by arranging a rotary component and a variable pitch component, improves work efficiency, ensures the quality of pulley tightening, and also ensures that the rotary component can check the origin position of rotation during the rotation process by arranging an in-situ detection pin and an in-situ latch sleeve.

Claims

1. An automatic servo tightening system, characterized in that: The invention comprises a base (1), wherein a rotary assembly for driving a tightening shaft (6) to rotate is arranged at the top of the base (1); a variable distance assembly for changing the distance between two tightening shafts (6) is installed on the rotary assembly; two in-situ latch sleeves (4) are symmetrically arranged on the rotary assembly, and a mechanical in-situ detection pin (5) for checking the position accuracy of the rotary assembly's rotation origin is assembled and connected inside the in-situ latch sleeves (4).

2. The automatic servo tightening system according to claim 1, characterized in that: The slewing assembly comprises an L-shaped slewing bracket (2) arranged on the top surface of the base (1), the vertical portion of the slewing bracket (2) being connected to a gear ring plate (7) via a plurality of bolt assemblies (19); a motor mounting frame (9) for mounting a slewing motor (10) is arranged at the top of the vertical portion of the slewing bracket (2), a driving gear (8) being connected to the output shaft of the slewing motor (10), and the driving gear (8) being meshed with an annular rack on the outer wall of the gear ring plate (7) below for transmission.

3. The automatic servo tightening system according to claim 2, characterized in that: A detection mounting frame (14) is arranged on the right side surface of the vertical portion of the slewing bracket (2), a rotation-in-place detection switch (15) is installed on the detection mounting frame (14), and a rotation tightening detection piece (16) is arranged on the left side of the gear ring plate (7) corresponding to the rotation-in-place detection switch (15).

4. The automatic servo tightening system according to claim 2, characterized in that: The pitch-changing assembly comprises a pitch-changing motor (11) mounted on a gear ring plate (7); the output shaft of the pitch-changing motor (11) is connected to a first synchronous pulley (12); the first synchronous pulley (12) is connected to a second synchronous pulley (13) through a synchronous belt; the second synchronous pulley (13) is connected to a trapezoidal screw rod (20) through a bearing; the two ends of the trapezoidal screw rod (20) are respectively mounted on the end surface of the gear ring plate (7) through a first mounting seat (21) and a second mounting seat (22); the threaded portions at the two ends of the trapezoidal screw rod (20) in different directions are respectively threadedly connected to a nut (23); the nut (23) is arranged at the center of a connecting block (24); the two sides of the connecting block (24) are respectively connected to a moving seat (25) and a tightening shaft (6); the moving seat (25) is slidably assembled with a slide rail (26) arranged on the gear ring plate (7).

5. The automatic servo tightening system according to claim 4, characterized in that: A first pitch limit detector (17) and a second pitch limit detector (18) for detecting the moving positions of the two moving seats (25) are also symmetrically arranged at the lower part of the gear ring plate (7).

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