Automatic centering device capable of achieving axial butt joint
Through the design of the automatic centering device, the automatic axial docking of the cylinder and servo motor drive workpiece is solved, and the problem of low automation in traditional methods is achieved, and efficient and high-precision workpiece assembly is suitable for assembly scenarios with high precision coaxiality requirements.
Patent Information
- Application Number
- CN202422535012.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The traditional manual installation and spiral crimping method have low degree of automation during the axial docking process, resulting in unstable product quality and low efficiency, especially in assembly with high precision coaxiality requirements.
An automatic centering device is designed, using the cylinder drive longitudinal shift mechanism and the servo motor drive locker to realize the automatic axial docking of the workpiece, and the coaxiality and perpendicularity are ensured through the matching structure of the press head and the centering sleeve. Combined with the sliding connection of the longitudinal slide rail and the slider, the automatic adjustment and rotary pressing of the workpiece are realized.
It improves the automation level of workpiece assembly, ensures high-precision coaxiality and verticality, improves assembly efficiency, saves manpower and reduces manufacturing costs, and is suitable for high-precision assembly needs.
Smart Images
Figure CN223265132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automatic assembly of parts, in particular to an automatic centering device capable of realizing axial docking. Background Art
[0002] Axial butt jointing of cylindrical products has always been a relatively critical core technology in the assembly field, especially when it comes to the assembly of certain special products (such as defense-related products). The axial butt joint process requires high coaxiality accuracy. Traditional manual installation and screw crimping methods have a relatively low degree of automation, making it difficult to ensure uniform installation pressure, resulting in unstable product quality and low assembly efficiency.
[0003] Therefore, a method or device that can solve the above problems is needed. Summary of the Invention
[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes an automatic centering device which has a simple structure, ingenious design, reasonable layout, can quickly and conveniently realize axial docking of workpieces, and can strictly ensure the coaxiality requirements of the assembled workpieces.
[0005] The technical solution of the utility model is: an automatic centering device that can realize axial docking, characterized in that: the device includes a support platform 1, a support column 2 is provided on the top of the support platform 1, a support shell 3 is connected to the support column 2, a longitudinal slide rail 4 is provided on the support column 2, and a longitudinally distributed cylinder 5 is provided in the support shell 3. The working end of the cylinder 5 is connected to the bottom end of the longitudinal slide 7 through a connecting frame 6, and the longitudinal slide 7 is slidably connected to the longitudinal slide rail 4 through a slider 8.
[0006] A pressure head bracket 9 is provided at the top of the longitudinal slide 7, and a pressure head 10 is provided on the pressure head bracket 9.
[0007] A servo motor 11 is provided at the bottom of the support platform 1. The output end of the servo motor 11 is connected to the input end of a reduction gear 12. The output end of the reduction gear 12 is connected to a driving gear 13 located above the support platform 1. A turntable 14 is rotatably supported on the support platform 1. A gear ring 15 meshing with the driving gear 13 is provided at the bottom of the turntable 14. A positioning card seat 16 is provided at the top of the turntable 14.
[0008] The axis of the press head 10 is collinear with the axis of the positioning seat 16.
[0009] The pressure head 10 includes an upper cover 17 that is directly fixedly connected to the pressure head bracket 9. The inner wall of the upper cover 17 is rotatably connected to the pressure head fixture 19 through a bearing 18. The bottom opening of the pressure head fixture 19 is connected to a centering sleeve 20 by bolts. The center hole of the centering sleeve 20 is a bell mouth 21 that matches the conical outer wall of the workpiece to be processed.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] This automatic centering device for axial butt jointing features a simple structure, ingenious design, and rational layout. It addresses the challenges inherent in assembling two workpieces with high coaxiality requirements by employing a unique design. It utilizes a pneumatic cylinder to drive a longitudinal displacement mechanism to reciprocate the ram in the longitudinal direction, and a motor to drive a cradle to rotate the pre-assembled workpiece at a constant speed. During the rotation of the workpiece, the ram applies pressure to the top of the workpiece. Due to the special structure at the bottom of the ram, the coaxiality of the two workpieces can be maintained while the workpieces are being pressed together. It also automatically adjusts the verticality of the workpieces to ensure optimal assembly results. This device enables automated assembly of two workpieces requiring axial butt jointing, effectively improving work efficiency while ensuring assembly quality and saving labor. Furthermore, its simple manufacturing process and low manufacturing cost offer numerous advantages, making it particularly suitable for widespread application in this field, and its market prospects are promising. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural diagram of an embodiment of the present utility model.
[0013] Figure 2 It is a front view of an embodiment of the present utility model.
[0014] Figure 3 It is a cross-sectional view of the pressure head part in the embodiment of the present utility model. DETAILED DESCRIPTION
[0015] The specific implementation of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 3 As shown: An automatic centering device that can achieve axial docking, the device includes a support platform 1, a support column 2 is provided on the top of the support platform 1, a support shell 3 is connected to the support column 2, a longitudinal slide rail 4 is provided on the support column 2, and a longitudinally distributed cylinder 5 is provided in the support shell 3. The working end of the cylinder 5 is connected to the bottom end of the longitudinal slide 7 through a connecting frame 6, and the longitudinal slide 7 is slidably connected to the longitudinal slide rail 4 through a slider 8.
[0016] A pressure head bracket 9 is provided at the top of the longitudinal slide 7, and a pressure head 10 is provided on the pressure head bracket 9.
[0017] A servo motor 11 is provided at the bottom of the support platform 1. The output end of the servo motor 11 is connected to the input end of a reduction gear 12. The output end of the reduction gear 12 is connected to a driving gear 13 located above the support platform 1. A turntable 14 is rotatably supported on the support platform 1. A gear ring 15 meshing with the driving gear 13 is provided at the bottom of the turntable 14. A positioning card seat 16 is provided at the top of the turntable 14.
[0018] The axis of the press head 10 is collinear with the axis of the positioning seat 16.
[0019] The pressure head 10 includes an upper cover 17 that is directly fixedly connected to the pressure head bracket 9. The inner wall of the upper cover 17 is rotatably connected to the pressure head fixture 19 through a bearing 18. The bottom opening of the pressure head fixture 19 is connected to a centering sleeve 20 by bolts. The center hole of the centering sleeve 20 is a bell mouth 21 that matches the conical outer wall of the workpiece to be processed.
[0020] The working process of the automatic centering device capable of achieving axial docking of the embodiment of the present invention is as follows: two workpieces to be assembled (e.g., cylindrical workpiece A and conical workpiece B) are pre-assembled in the previous process and transported to the present device by a robot. Specifically, the pre-assembled workpieces are placed in the positioning holder 16. Since the central axis of the pressing head 10 is collinear with the central axis of the positioning holder 16, the pressing head 10 is now located directly above the workpieces, and the central axis of the pressing head 10 is collinear with the central axis of the workpieces.
[0021] The control system sends a signal to the cylinder 5, causing the cylinder 5 to extend, driving the longitudinal slide 7 to move downward, and the longitudinal slide 7 drives the ram 10 to move downward until the ram 10 is pressed tightly against the top of the workpiece B. Since the top of the workpiece B is conical (or frustum-shaped), and the positioning sleeve 20 provided at the bottom opening of the ram 10 has a center hole that is a bell mouth 21 that matches the top of the cone or frustum, when the positioning sleeve 20 is sleeved on the workpiece B, its axis is automatically adjusted, so that the axis of the workpiece B is strictly coaxial with the axis of the workpiece A.
[0022] After the pressing head 10 is pressed down into place, a signal is sent to the servo motor 11 through the control system. After the servo motor 11 works, it drives the active gear 13 to rotate, and then drives the ring gear 15, the turntable 14 and the positioning seat 16 to rotate at a constant speed, and finally achieves the purpose of driving the workpiece to rotate. While the workpiece rotates, it is subjected to the downward force applied by the pressing head 10, thereby realizing the press-fitting assembly of workpieces A and B.
[0023] After the press-fitting is completed, the press head 10 moves upward, the turntable 14 stops rotating, the robot takes away the assembled workpiece, and places a pre-assembled workpiece on the positioning base 16 again, and repeats the above operation.
[0024] When the top of the workpiece B to be assembled is in a conical or truncated cone shape with different angles, the current centering sleeve 20 can be removed from the press head fixture 19 and replaced with a suitable centering sleeve 20 .
Claims
1. An automatic centering device capable of achieving axial docking, characterized in that: The device comprises a support platform (1), a support column (2) is provided on the top of the support platform (1), a support shell (3) is connected to the support column (2), a longitudinal slide rail (4) is provided on the support column (2), and a longitudinally distributed cylinder (5) is provided in the support shell (3), the working end of the cylinder (5) is connected to the bottom end of the longitudinal slide (7) through a connecting frame (6), and the longitudinal slide (7) is slidably connected to the longitudinal slide rail (4) through a slider (8). A pressure head bracket (9) is provided at the top end of the longitudinal slide (7), and a pressure head (10) is provided on the pressure head bracket (9). A servo motor (11) is provided at the bottom of the support platform (1), the output end of the servo motor (11) is connected to the input end of the reduction box (12), the output end of the reduction box (12) is connected to the driving gear (13) located above the support platform (1), a turntable (14) is rotatably supported on the support platform (1), a gear ring (15) meshing with the driving gear (13) is provided at the bottom of the turntable (14), and a positioning card seat (16) is provided at the top of the turntable (14). The axis of the pressure head (10) is collinear with the axis of the positioning seat (16). The pressure head (10) includes an upper cover (17) directly fixedly connected to the pressure head bracket (9), the inner wall of the upper cover (17) is rotatably connected to the pressure head fixture (19) through a bearing (18), and a centering sleeve (20) is connected to the bottom opening of the pressure head fixture (19) through bolts, and the center hole of the centering sleeve (20) is a bell mouth (21) that matches the conical outer wall of the workpiece to be processed.