Automobile connecting rod and positioning carrier
Patent Information
- Application Number
- CN202522012655.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-18
AI Technical Summary
目前,市面上常见的汽车连杆定位装置大多结构复杂,操作繁琐,且定位精度较低,难以满足不同规格汽车连杆的定位需求
1、本发明通过电推杆实现主夹具座与副夹具座之间距离的调节,能够适应不同长度规格的汽车连杆的定位需求,同时,可调节的夹具可适应不同孔径的汽车连杆,调节灵活性高,适用范围广。
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Figure CN224713736U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of auxiliary equipment for automotive parts processing, specifically, it relates to an automotive connecting rod and positioning carrier. Background Technology
[0002] During the manufacturing process of automotive connecting rods, precise positioning is required to ensure that subsequent processing steps (such as drilling, grinding, and assembly) can be completed smoothly and with high quality. Currently, most automotive connecting rod positioning devices on the market are complex in structure, cumbersome to operate, and have low positioning accuracy, making it difficult to meet the positioning requirements of connecting rods of different specifications.
[0003] Some positioning devices, when fixing automotive connecting rods, are prone to causing surface damage due to excessive clamping force, affecting product quality. Furthermore, existing positioning devices lack adjustment flexibility, failing to quickly adjust the angle and position of the connecting rods according to processing requirements, thus reducing processing efficiency. In addition, some positioning devices lack reliable self-locking mechanisms, which may lead to positional shifts during processing, further affecting processing accuracy and production safety.
[0004] Therefore, there is an urgent need for an automotive linkage positioning carrier that is simple in structure, easy to operate, highly accurate in positioning, flexible in adjustment, and has a reliable self-locking function, in order to solve the above-mentioned problems existing in the prior art. Utility Model Content
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A car linkage and positioning carrier includes a base, a main clamp seat, and a secondary clamp seat. An electric actuator is fixedly connected to the side of the main clamp seat, and the other end of the electric actuator is fixedly connected to the side of the secondary clamp seat. The upper ends of both the main clamp seat and the secondary clamp seat are provided with sliding grooves, which are arranged radially. A slider is movably sleeved inside each sliding groove. A second spring is installed between the outer side of the slider and the sliding groove. A fixing clamp is fixedly connected to the upper end of each slider. The outer surface of the fixing clamp is coated with a rubber layer, and protrusions are provided on the outer periphery of both ends of the fixing clamp.
[0006] In a preferred embodiment of this utility model, a hydraulic cylinder is fixedly connected to the lower end of the conical core. The hydraulic cylinder is fixedly installed in the receiving groove opened in the center of the main clamp seat and the auxiliary clamp seat. The lower end of the auxiliary clamp seat is set in a semi-circular arc shape, and a spherical groove is opened at the center of the lower end of the auxiliary clamp seat. A rolling ball is movably sleeved inside the spherical groove.
[0007] In a preferred embodiment of the present invention, the lower end of the main clamp seat is provided with a receiving groove, a rack is installed inside the receiving groove, a self-locking rod is fixedly connected to one end of the rack, and a first spring is installed at the other end of the rack.
[0008] In a preferred embodiment of this utility model, a motor mounting base is provided at the lower end of the main clamping seat, a motor is fixedly installed inside the motor mounting base, and a gear is fixedly installed on the transmission shaft at the upper end of the motor. The gear corresponds to and meshes with the rack.
[0009] In a preferred embodiment of this utility model, the upper surface of the motor mounting base is provided with a circular groove, which corresponds to the lower end of the main clamping seat and is movably connected with it. The side of the circular groove on the upper surface of the motor mounting base is provided with a plurality of self-locking holes, which correspond to the self-locking rod and are movably connected with it.
[0010] In a preferred embodiment of this utility model, a mounting groove is provided at the center of the upper surface of the base, the mounting groove corresponding to the motor mounting seat and being fixedly connected to it.
[0011] Compared with the prior art, the present invention has the following advantages: 1. This invention uses an electric actuator to adjust the distance between the main clamp seat and the auxiliary clamp seat, which can adapt to the positioning requirements of automotive connecting rods of different lengths. At the same time, the adjustable clamp can adapt to automotive connecting rods of different diameters, with high adjustment flexibility and wide applicability.
[0012] 2. The clamping method using a conical core and hydraulic cylinder, combined with radially arranged fixing clamps, can tightly clamp the car connecting rod from multiple directions. The rubber coating on the surface of the fixing clamps can effectively prevent damage to the surface of the car connecting rod, ensuring both clamping firmness and improving product quality.
[0013] 3. An angle adjustment mechanism consisting of a motor, gears, and racks is provided, which can conveniently and quickly adjust the angle of the main fixture to meet the needs of different processing steps. At the same time, a self-locking mechanism consisting of a first spring, a self-locking rod, and a self-locking hole can reliably self-lock after the main fixture is adjusted to the required angle, preventing position deviation and ensuring processing accuracy and production safety.
[0014] 4. The entire device has a simple structure, is easy to operate, and the components work together in a coordinated manner. It can effectively improve the positioning accuracy and processing efficiency of automotive connecting rods, reduce production costs, and has high practical value and promising prospects for promotion.
[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0016] In the attached diagram: Figure 1 A schematic diagram showing the overall appearance of an automotive linkage and positioning device; Figure 2 This is a partial disassembly diagram of an automotive linkage and positioning device. Figure 3 This is a top-view exploded diagram of a car linkage and positioning device; Figure 4 An exploded view from below of a car linkage and positioning device; Figure 5 This is a partial cross-sectional schematic diagram of an automotive linkage and positioning device. Figure 6 This is a schematic cross-sectional view of the main body of an automotive linkage and positioning device; Figure 7 This is a schematic diagram of the structural relationship of a self-locking mechanism for an automotive linkage and positioning carrier.
[0017] In the diagram: 1. Base; 2. Fixture; 3. Conical core; 4. Automobile connecting rod; 5. Secondary fixture seat; 6. Electric actuator; 7. Main fixture seat; 8. Motor mounting seat; 9. Mounting slot; 10. Slider; 11. Slide groove; 12. First spring; 13. Rack; 14. Self-locking rod; 15. Self-locking socket; 16. Gear; 17. Rolling ball; 18. Hydraulic cylinder; 19. Receiving groove; 20. Motor; 21. Second spring. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0019] like Figures 1 to 7 As shown, an automotive linkage and positioning carrier includes a base 1, a main clamp seat 7, and a secondary clamp seat 5. An electric push rod 6 is fixedly connected to the side of the main clamp seat 7, and the other end of the electric push rod 6 is fixedly connected to the side of the secondary clamp seat 5. The upper ends of the main clamp seat 7 and the secondary clamp seat 5 are provided with sliding grooves 11, which are arranged radially. A slider 10 is movably sleeved inside the sliding groove 11. A second spring 21 is installed between the outer side of the slider 10 and the sliding groove 11. A fixing clamp 2 is fixedly connected to the upper end of the slider 10. The outer surface of the fixing clamp 2 is coated with a rubber layer, and protrusions are provided on both outer sides of the fixing clamp 2.
[0020] In this configuration, the electric push rod 6 can extend and retract to move the auxiliary clamp seat 5 horizontally, thereby adjusting the distance between the main clamp seat 7 and the auxiliary clamp seat 5 to accommodate automotive connecting rods of different lengths. The radial groove 11 provides a sliding track for the slider 10, and with the elastic reset effect of the second spring 21, the fixed clamp 2 can extend and retract flexibly with the slider 10, thus accommodating automotive connecting rod holes of different diameters. The rubber layer on the surface of the fixed clamp 2 can prevent scratching the surface of the automotive connecting rod during clamping, while the protrusions at both ends can enhance the connection stability with the automotive connecting rod holes, preventing the workpiece from falling off during processing, thus improving the overall adjustment flexibility and applicability of the lifting device.
[0021] like Figures 1 to 7 As shown, in a specific embodiment, a hydraulic cylinder 18 is fixedly connected to the lower end of the conical core 3. The hydraulic cylinder 18 is fixedly installed in the receiving groove opened in the center of the main clamp seat 7 and the auxiliary clamp seat 5. The lower end of the auxiliary clamp seat 5 is set in a semi-circular arc shape, and a spherical groove is opened at the center of the lower end of the auxiliary clamp seat 5. A rolling ball 17 is movably sleeved inside the spherical groove.
[0022] In this configuration, the hydraulic cylinder 18 provides stable power, driving the conical core 3 to contract vertically. The conical structure of the conical core 3 generates an outward thrust on the fixed clamp 2, causing the fixed clamp 2 to tightly press against the connecting rod hole of the automobile, achieving multi-directional clamping. The semi-circular lower end of the auxiliary clamp seat 5 cooperates with the rolling ball 17, which can significantly reduce the frictional resistance between the auxiliary clamp seat 5 and the base 1 when the auxiliary clamp seat 5 moves, ensuring that the auxiliary clamp seat 5 moves smoothly in the horizontal direction. At the same time, the rolling ball 17 can also guide the movement direction of the auxiliary clamp seat 5, preventing deviation and ensuring the coaxiality of the main and auxiliary clamp seats.
[0023] like Figures 1 to 7 As shown, in a specific embodiment, the lower end of the main clamp seat 7 is provided with a receiving groove 19, and a rack 13 is installed inside the receiving groove 19. One end of the rack 13 is fixedly connected to a self-locking rod 14, and the other end of the rack 13 is equipped with a first spring 12.
[0024] In this configuration, the receiving groove 19 provides installation space for the rack 13 and the first spring 12, ensuring a compact layout of all components. The rack 13 can drive the self-locking rod 14 to move synchronously through horizontal movement, providing a basis for subsequent angle self-locking. When the first spring 12 is in its natural state, it can generate elastic thrust, pushing the rack 13 to move in the direction of the self-locking rod 14, ensuring that after the angle of the main clamp seat 7 is adjusted, the self-locking rod 14 can be automatically inserted into the self-locking socket 15 without additional power to drive the self-locking, thus improving the ease of operation.
[0025] like Figures 1 to 7As shown, in a specific embodiment, a motor mounting base 8 is provided at the lower end of the main clamping base 7. A motor 20 is fixedly installed inside the motor mounting base 8. A gear 16 is fixedly installed on the transmission shaft at the upper end of the motor 20. The gear 16 corresponds to and meshes with the rack 13.
[0026] In this configuration, the motor mounting base 8 provides stable mounting support for the motor 20, preventing the motor 20 from shaking during operation. The motor 20 can drive the gear 16 to rotate precisely through the transmission shaft. By utilizing the meshing transmission relationship between the gear 16 and the rack 13, the rotational motion of the motor is converted into the horizontal linear motion of the rack 13, which in turn drives the main clamp seat 7 to rotate around the circular groove of the motor mounting base 8, realizing flexible adjustment of the processing angle of the automotive connecting rod. The controllability of the motor 20 can ensure the accuracy of angle adjustment and meet the differentiated requirements of different processing procedures (such as drilling and grinding) for the angle of the automotive connecting rod.
[0027] like Figures 1 to 7 As shown, in a specific embodiment, a circular groove is provided on the upper surface of the motor mounting base 8. The circular groove corresponds to the lower end of the main clamping base 7 and is movably connected to it. Several self-locking holes 15 are provided on the side of the circular groove on the upper surface of the motor mounting base 8. The self-locking holes 15 correspond to the self-locking rod 14 and are movably connected to it.
[0028] In this configuration, the circular groove and the movable sleeve structure at the lower end of the main fixture seat 7 provide a ring support trajectory for the rotation of the main fixture seat, ensuring that the main fixture seat 7 remains stable during rotation and avoiding tilting; several evenly distributed self-locking holes 15 can cooperate with the self-locking rod 14 to fix the main fixture seat 7 at different angle positions, meeting the needs of multi-station processing; the insertion and cooperation between the self-locking rod 14 and the self-locking hole 15 can firmly lock the angle of the main fixture seat 7 during processing, preventing angle deviation due to vibration, and ensuring processing accuracy and production safety.
[0029] like Figures 1 to 7 As shown, in a specific embodiment, a mounting groove 9 is provided at the center of the upper surface of the base 1. The mounting groove 9 corresponds to the motor mounting seat 8 and is fixedly connected to it.
[0030] In this setup, the mounting slot 9 securely mounts the motor mounting base 8 to the center of the base 1 using a fixed sleeve connection, ensuring no relative displacement between the motor mounting base 8 and the base 1, thus providing a stable support foundation for the entire device. The central mounting structure of the base 1 ensures that the center of gravity of the device is centered, reducing overall shaking during processing and further improving positioning accuracy. At the same time, the fixed sleeve connection facilitates the disassembly and maintenance of the motor mounting base 8, reducing subsequent maintenance costs.
[0031] The implementation principle of the automobile linkage and positioning carrier in this embodiment is as follows: This utility model; When using this automotive connecting rod and positioning fixture, first check the operating status of each power component (such as the electric actuator, hydraulic cylinder, and motor) to ensure that the rolling ball rotates smoothly in the spherical groove of the auxiliary fixture seat and that the rubber layer on the surface of the fixed fixture is intact. Then, place the automotive connecting rod to be processed between the main fixture seat and the auxiliary fixture seat. Start the electric actuator to adjust the distance between the main and auxiliary fixture seats to match the connecting rod length. Once the distance is appropriate, turn off the electric actuator. Next, fit the holes at both ends of the automotive connecting rod onto the outer periphery of the fixed fixtures on the main and auxiliary fixture seats to complete the initial positioning. Then, start the hydraulic cylinder in the central receiving groove of the main and auxiliary fixture seats, causing the hydraulic cylinder to drive the conical core to contract. The conical core, through its own conical structure, pushes the fixed fixture to slide outward along the radial groove until the fixed fixture tightly presses against the inner wall of the automotive connecting rod hole to achieve clamping. The machining requires adjusting the angle of the car connecting rod. The motor inside the motor mount is started, driving the gear on the drive shaft to rotate. The gear meshes with the rack, driving the rack to move, which in turn rotates the main clamping seat around the circular groove of the motor mount to the desired angle. After the motor is turned off, the first spring pushes the rack to move, causing the self-locking rod to extend and insert into the corresponding self-locking hole in the motor mount to achieve angle self-locking. Then, the machining operation of the car connecting rod can begin. After machining is complete, the motor is first started in reverse to retract the self-locking rod into the receiving groove, rotating the main clamping seat back to its initial position. Then, the hydraulic cylinder is started to reset the conical core, and the second spring pushes the slider and the fixed clamp to retract, releasing the car connecting rod. Finally, the electric actuator is started to adjust the distance between the main and auxiliary clamping seats, and the machined car connecting rod is removed. All power components are then turned off to complete the entire process.
Claims
1. A car link and positioning carrier, comprising a car link (4), a base (1), a main clamp seat (7), and a secondary clamp seat (5), characterized in that: The main clamp seat (7) is fixedly connected to the side of an electric push rod (6), and the other end of the electric push rod (6) is fixedly connected to the side of the auxiliary clamp seat (5). The upper ends of the main clamp seat (7) and the auxiliary clamp seat (5) are provided with sliding grooves (11). The sliding grooves (11) are arranged radially. The sliding grooves (11) are movably sleeved inside each sliding groove (11). A second spring (21) is installed between the outer side of the sliding groove (10) and the sliding groove (11). The upper end of the sliding groove (10) is fixedly connected to a fixing clamp (2). The outer surface of the fixing clamp (2) is coated with a rubber layer, and the outer sides of both ends of the fixing clamp (2) are provided with protrusions. The outer side of the fixing clamp (2) corresponds to the holes at both ends of the automobile connecting rod (4) and is sleeved with it.
2. The automotive linkage and positioning carrier according to claim 1, characterized in that, A conical core (3) is movably installed at the inner center of the fixed clamp (2). A hydraulic cylinder (18) is fixedly connected to the lower end of the conical core (3). The hydraulic cylinder (18) is fixedly installed in the receiving groove opened at the center of the main clamp seat (7) and the auxiliary clamp seat (5). The lower end of the auxiliary clamp seat (5) is set in a semi-circular arc shape. A spherical groove is opened at the center of the lower end of the auxiliary clamp seat (5). A rolling ball (17) is movably sleeved inside the spherical groove.
3. The automotive linkage and positioning carrier according to claim 1, characterized in that, The lower end of the main clamp seat (7) is provided with a receiving groove (19), and a rack (13) is installed inside the receiving groove (19). One end of the rack (13) is fixedly connected to a self-locking rod (14), and the other end of the rack (13) is equipped with a first spring (12).
4. The automotive linkage and positioning carrier according to claim 2, characterized in that, The lower end of the main clamp seat (7) is provided with a motor fixing seat (8), and a motor (20) is fixedly installed inside the motor fixing seat (8). A gear (16) is fixedly installed on the transmission shaft at the upper end of the motor (20). The gear (16) corresponds to the rack (13) and meshes with it.
5. The automotive linkage and positioning carrier according to claim 4, characterized in that, The upper surface of the motor mounting base (8) is provided with a circular groove, which corresponds to the lower end of the main clamp base (7) and is movably connected to it. The side of the circular groove on the upper surface of the motor mounting base (8) is provided with several self-locking holes (15), which correspond to the self-locking rod (14) and are movably connected to it.
6. The automotive linkage and positioning carrier according to claim 1, characterized in that, The base (1) has an installation groove (9) at the center of its upper surface. The installation groove (9) corresponds to the motor mounting base (8) and is fixedly connected to it.