Calibration trolley of tightening system
By designing a calibration carriage suitable for bolts of various specifications, the problem of high cost of existing calibration carriages was solved, and efficient calibration of various tightening devices was achieved, reducing calibration costs and improving the applicability of the equipment.
Patent Information
- Application Number
- CN202520432387.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing calibration carriages typically use one tool for one set of torque sensors, resulting in high operating costs and failing to meet the calibration requirements of tightening equipment for various bolt sizes.
A calibration trolley was designed, comprising a trolley frame, simulated bolts, movable reaction bars, and a cross translation mechanism. It can adapt to the calibration of bolts of various specifications and is equipped with an automatic winding device and multiple torque sensors to achieve the calibration of various tightening devices.
By simplifying the structure and operation, calibration costs are reduced, and the applicability and flexibility of the equipment are improved, enabling it to meet the calibration needs of bolts of various specifications.
Smart Images
Figure CN223796180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive assembly equipment, specifically to a calibration trolley for a tightening system. Background Technology
[0002] Various bolt tightening equipment is required in automotive assembly lines, specifically categorized as front suspension and body tightening equipment, left and right drive shaft and brake tightening equipment, engine left and right suspension tightening equipment, and motor bracket and gravity assembly tightening equipment. These are key pieces of equipment on the automotive assembly line, requiring high torque. To ensure product accuracy, the tightening equipment must be calibrated periodically before use. Calibration is primarily performed using calibration carriages. However, most existing calibration carriages use a single tool for each torque sensor, resulting in high operating costs. Summary of the Invention
[0003] To address the shortcomings of the existing technology, this utility model provides a calibration trolley for a tightening system, which can meet the calibration requirements of tightening equipment for bolts of various specifications, thus saving costs.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A calibration trolley for a tightening system, characterized in that: it includes a trolley frame, casters are provided at the four corners of the bottom surface of the trolley frame, a plurality of simulated bolts are provided on the platform on the top surface of the trolley frame, a movable reaction rod is provided at one end of the trolley frame, and a handrail is provided at the other end of the trolley frame. The simulated bolts are limited to the bottom surface of the platform by a fixed seat, and the top surface of the platform has a round cover for positioning the simulated bolts. The plurality of simulated bolts are of various specifications. The movable reaction rod includes a movable seat provided on a cross translation mechanism. A mounting plate is provided on the movable seat, and two limit stops are provided on the mounting plate.
[0006] Furthermore, an automatic cable reel is provided on the inner side of the vehicle frame.
[0007] Furthermore, the cross translation mechanism includes two linear bearings mounted on the trolley frame, two guide rods that slide and cooperate with the two linear bearings respectively, an end mounting plate fixedly connected to one end of the two guide rods, two end mounting seats fixed to both ends of the end mounting plate, a sliding guide rod and a lead screw connected between the two end mounting seats, a movable seat slidably mounted on the sliding guide rod, the movable seat having a lead screw nut that cooperates with the lead screw, the lead screw being connected to the end mounting seat via a bearing, and a handwheel being connected to one end of the lead screw, and a clamp for locking the lead screw being provided on the end mounting seat.
[0008] Furthermore, the other end of each of the two guide rods is connected to a baffle.
[0009] Furthermore, the guide rod is provided with an anti-collision limiting block, and the trolley frame is provided with a second clamp for locking the guide rod.
[0010] The advantages of this utility model include: simple structure, convenient operation, and compatibility with various tightening devices for calibration, thus saving calibration costs. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the movable reaction rod structure of this utility model. Detailed Implementation
[0013] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0014] One such Figure 1-2 The calibration carriage for the tightening system shown includes a carriage frame 1, with casters 12 at the four corners of the bottom surface for easy movement. Multiple simulated bolts 2 of different specifications are mounted on the platform 11 on the top surface of the carriage frame 1, suitable for calibrating six bolt types: LENS ISO14583 6.0×12, M10-30NM-30DEG, M12-60NM-30DEG, M16-200NM-60DEG, M20-400NM-60DEG, and M30-800NM-60DEG. A movable reaction rod 3 is located at one end of the carriage frame 1 to provide reverse support force to the tightening system. A handle 4 is located at the other end of the carriage frame 1 for easy pushing of the carriage by the worker.
[0015] The simulated bolt 2 is positioned on the bottom surface of the platform 11 by a fixing seat 5. The fixing seat 5 is fastened to the platform 11 by bolts. The fixing seat 5 has a square hole, and the lower end of the simulated bolt has a square head that inserts into the upper hole of the fixing seat 5. The top surface of the platform 11 has a round cover 6 for positioning the simulated bolt 2. The round cover 6 has a central hole in the middle through which the simulated bolt can pass. The round cover 6 is fastened to the platform 11 by screws.
[0016] The movable reaction rod 3 includes a movable seat 7 mounted on a cross-shaped translation mechanism. A mounting plate 8 is mounted on the movable seat 7, and two limit stops 9 are mounted on the mounting plate 8. During calibration, the front end of the tightening gun engages with a simulated bolt for calibration. The rear end of the tightening gun is limited between the two limit stops 9. The tightening gun's built-in torque and angle sensors measure the torque. The tightening gun is then connected to a controller to collect data, and the torque is calibrated according to the target value specified in the process. The torque-angle method is used, with the torque calibrated according to the target value specified in the process. For multiple torques and angles, each torque and angle needs to be calibrated.
[0017] The trolley is connected to a power source, and an automatic cable reel 10 is installed on the inner side of the trolley frame 1, which allows the trolley to move within a predetermined range without being bothered by the power cord. Multiple sockets are provided on the side of the trolley body for easy access to power from the tightening system.
[0018] To enable the limit stop 9 to adapt to simulated bolt calibration at multiple positions, the cross translation mechanism in this embodiment includes two linear bearings 31 mounted on the trolley frame 1, two guide rods 32 that slide with the two linear bearings 31 respectively, an end mounting plate 33 fixedly connected to one end of the two guide rods 32, two end mounting seats 34 fixed to both ends of the end mounting plate 33, a sliding guide rod 35 and a lead screw 36 connected between the two end mounting seats 34. The movable seat 7 is slidably mounted on the sliding guide rod 35. The movable seat 7 has a lead screw nut that cooperates with the lead screw 36. The lead screw 36 is connected to the end mounting seat 34 via bearings, and one end of the lead screw 36 is connected to a handwheel 37. The movable seat 7 moves back and forth by moving the guide rods 32, and moves left and right by rotating the handwheel 37. The end mounting seat 34 is provided with a first clamp 40 for locking the lead screw 36. The guide rods 32 are provided with anti-collision limit blocks 39 to prevent the guide rods 32 from exceeding their travel range. The trolley frame 1 is equipped with a second clamp 41 that locks the guide rod 32. When the guide rod 32 moves axially into position, the second clamp 41 is locked to restrict the position of the guide rod 32. When the moving seat 7 moves left or right into position, the first clamp 40 is locked to restrict the rotation of the lead screw 36, thereby fixing the relative position of the moving seat 7. Then the limit stop 9 is just locked at the rear end of the tightening gun.
[0019] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A calibration trolley for a tightening system, characterized in that: The utility model provides a trolley frame (1), the bottom four corners of trolley frame (1) are provided with trundle (12), the top plate (11) of trolley frame (1) is provided with multiple analog bolt (2), one end of trolley frame (1) is provided with movable counterforce rod (3), the other end of trolley frame (1) is provided with handrail (4), analog bolt (2) is limited in the bottom of top plate (11) through fixed seat (5), the top of top plate (11) has round cover (6) of the positioning analog bolt (2), multiple analog bolt (2) are multiple specifications, movable counterforce rod (3) includes the moving seat (7) of cross translation mechanism, the mounting plate (8) is provided on moving seat (7), two limit stop bars (9) are provided on mounting plate (8).
2. The calibration trolley of a tightening system according to claim 1, characterized in that: The inner side of the trolley frame (1) is provided with an automatic wire winder (10).
3. The calibration trolley of a tightening system according to claim 1, characterized in that: The cross translation mechanism includes two linear bearings (31) provided on the trolley frame (1), two guide rods (32) respectively slidingly matched with the two linear bearings (31), an end mounting plate (33) fixedly connected to one end of the two guide rods (32), two end mounting seats (34) fixedly connected to both ends of the end mounting plate (33), a sliding guide rod (35) and a lead screw (36) connected between the two end mounting seats (34), the moving seat (7) is slidingly arranged on the sliding guide rod (35), the moving seat (7) has a lead screw nut matched with the lead screw (36), the lead screw (36) is connected with the end mounting seat (34) through a bearing, one end of the lead screw (36) is connected with a hand wheel (37), and the end mounting seat (34) is provided with a first clamp (40) for locking the lead screw (36).
4. The calibration trolley of a tightening system according to claim 3, characterized in that: The other end of the two guide rods (32) is connected with a baffle (38).
5. The calibration trolley of a tightening system according to claim 3, characterized in that: The guide rod (32) is provided with an anti-collision limiting block (39), and the trolley frame (1) is provided with a second clamp (41) for locking the guide rod (32). The guide rod (32) is provided with an anti-collision limiting block (39), and the trolley frame (1) is provided with a second clamp (41) for locking the guide rod (32).