A connecting rod assembly machine
The lifting and tilting protection mechanism solves the problems of collision damage and height fixation when the linkage assembly machine is not in use, achieving the effect of easy use and flexible adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUFENG METAL TECH KUNSHAN CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-26
AI Technical Summary
The linkage assembly machine lacks an electric shielding device when not in use, making it prone to collision damage. Furthermore, its fixed height means it cannot be adjusted, affecting its flexibility and convenience of use.
A linkage assembly machine including a lifting mechanism, a flip protection mechanism, and a drive mechanism was designed. The screw rotation drives the lifting plate to move, and the bevel gear meshing realizes the flip protection of the baffle and side plate. Combined with the clutch control mechanism, power transmission and flip control are realized.
It provides all-around shielding protection for the assembly machine to prevent damage, and the height can be quickly adjusted, improving ease of use and flexibility.
Smart Images

Figure CN224274028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connecting rod assembly technology, specifically a connecting rod assembly machine. Background Technology
[0002] A connecting rod assembly machine is a high-precision machining equipment mainly used to assemble eccentric connecting rods into connecting rod assemblies, ensuring assembly accuracy and quality. It plays a crucial role in the manufacturing process of internal combustion engines, compressors, pumps, and other machinery, ensuring that the connecting rod assemblies possess high strength, high rigidity, high reliability, and high stability, thereby enabling them to withstand mechanical energy transmission under high-frequency, high-load conditions and guaranteeing the long-term stable operation of the machinery.
[0003] For example, Chinese Patent Application No. 202123393190.2 discloses an eccentric arm connecting rod assembly machine, including a base, a product positioning fixture on the base, and a riveting head located above the product positioning fixture. The product positioning fixture includes a base with a transmission rod positioning groove for horizontally positioning the transmission rod. The riveting head is located above the transmission rod positioning groove and is vertically mounted on the base. The riveting head is equipped with a riveting drive device for driving the riveting head to move up and down. This machine achieves mechanical riveting assembly of the eccentric arm and connecting shaft, effectively improving the product qualification rate and reducing the product failure rate.
[0004] In traditional applications of linkage assembly machines, the equipment often lacks additional electrically operated protective shields when not in use. This not only increases safety hazards but also affects the overall protective performance of the equipment. Furthermore, the height of traditional assembly machines is usually fixed and cannot be freely adjusted according to actual needs, greatly limiting their flexibility and convenience of use and causing numerous inconveniences in operation.
[0005] Therefore, the linkage assembly machine needs to be redesigned and modified to effectively prevent collision damage and inconvenience in use. Utility Model Content
[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a connecting rod assembly machine that is easy to use and solves the problems of easy collision damage and inconvenience in use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a linkage assembly machine, comprising an assembly machine and a lifting mechanism. The lifting mechanism includes a base plate fixedly connected to the bottom of the assembly machine. A limiting frame is fixedly connected to the bottom of the base plate. A housing is slidably connected to the surface of the limiting frame. A limiting bracket is fixedly connected to the bottom of the inner wall of the housing. A lifting plate is slidably connected to the surface of the limiting bracket. The surface of the lifting plate is fixedly connected to the inner wall of the limiting frame. A screw is movably connected to the inner wall of the limiting bracket via a bearing. The bottom end of the screw is movably connected to the bottom of the inner wall of the housing via a bearing. When the screw rotates, it can drive the limiting frame and the base plate to move upward via the lifting plate. A flip-over protection mechanism is provided around the assembly machine.
[0008] As a preferred embodiment of this utility model, the flipping protection mechanism includes multiple support blocks fixedly connected around the perimeter of the housing. Four round rods are slidably connected to the inner wall of each support block. Baffles are fixedly connected to the bottom of the round rods on both the front and rear sides, and side plates are fixedly connected to the bottom of the round rods on both the left and right sides. Bevel gears are fixedly connected to the surface of each round rod, and the inner sides of the bevel gears mesh with each other. When the left round rod rotates, it can drive all the round rods to rotate synchronously through the bevel gears, thereby causing the baffles and side plates to flip upward until the assembly machine is completely covered. A drive mechanism is provided on the rear side of the housing.
[0009] As a preferred embodiment of this utility model, the drive mechanism includes a fixed frame fixedly connected to the bottom of the back of the housing, a motor fixedly connected to the surface of the fixed frame, a transmission rod fixedly connected to the top output shaft of the motor, a transmission wheel fixedly connected to the surface of the transmission rod and the surface of the screw, a transmission belt sleeved on the surface of the transmission wheel, and a clutch control mechanism provided on the rear side of the housing.
[0010] As a preferred embodiment of this utility model, the clutch control mechanism includes a clutch gear fixedly connected to the top of the transmission rod, a linkage rod slidably connected to the inner wall of the clutch gear, a worm gear fixedly connected to the top of the linkage rod, a worm wheel meshing with the right side of the worm gear, the front of the worm wheel fixedly connected to the rear end of the left round rod, and a clutch internal gear cylinder slidably connected to the surface of the linkage rod. The clutch internal gear cylinder can slide downward on the surface of the linkage rod to mesh with the clutch gear, thereby causing the transmission rod to drive the linkage rod to rotate.
[0011] As a preferred embodiment of this invention, a tension spring is fixedly connected to the top of the clutch internal gear cylinder, and the top of the tension spring is fixedly connected to the surface of the fixing frame, thereby preventing the clutch internal gear cylinder from moving downward on its own.
[0012] As a preferred embodiment of this utility model, the left side of the clutch internal gear cylinder is movably connected to a pull handle via a bearing, and the pull handle can conveniently drive the clutch internal gear cylinder to move downward.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. When this utility model is in use, under the action of the lifting mechanism, the flipping protection mechanism, the drive mechanism and its clutch control mechanism, the connecting rod assembly machine can be shielded and protected and the usage height can be quickly adjusted. This avoids the connecting rod assembly machine being easily damaged by bumps and the inconvenience caused by the inability to adjust the usage height, thus giving it the advantage of being easy to use.
[0015] 2. This utility model, by setting up a flip protection mechanism, can provide all-round protection for the assembly machine when needed. When transportation is required or the machine is not used for a long time, the rotation of the round rod drives the baffle and side plate to flip upward, completely covering the assembly machine, effectively preventing external factors from damaging the assembly machine and extending its service life. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structural shielding of this utility model;
[0018] Figure 3 This is a schematic diagram of the interior of the housing of this utility model;
[0019] Figure 4 This is a schematic diagram of the drive mechanism and clutch control mechanism of this utility model;
[0020] Figure 5 This is a cross-sectional view of the clutch control mechanism of this utility model.
[0021] In the diagram: 1. Assembly machine; 2. Base plate; 3. Limiting frame; 4. Box body; 5. Limiting bracket; 6. Lifting plate; 7. Screw; 8. Support block; 9. Round rod; 10. Baffle; 11. Side plate; 12. Bevel gear; 13. Fixing frame; 14. Motor; 15. Transmission rod; 16. Transmission wheel; 17. Transmission belt; 18. Clutch gear; 19. Linkage rod; 20. Worm gear; 21. Worm wheel; 22. Clutch internal gear cylinder; 23. Tension spring; 24. Pull handle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 5As shown, the present invention provides a linkage assembly machine 1, including an assembly machine 1 and a lifting mechanism. The lifting mechanism includes a base plate 2 fixedly connected to the bottom of the assembly machine 1. A limit frame 3 is fixedly connected to the bottom of the base plate 2. A housing 4 is slidably connected to the surface of the limit frame 3. A limit bracket 5 is fixedly connected to the bottom of the inner wall of the housing 4. A lifting plate 6 is slidably connected to the surface of the limit bracket 5. The surface of the lifting plate 6 is fixedly connected to the inner wall of the limit frame 3. A screw 7 is movably connected to the inner wall of the limit bracket 5 through a bearing. The bottom end of the screw 7 is movably connected to the bottom of the inner wall of the housing 4 through a bearing. When the screw 7 rotates, it can drive the limit frame 3 and the base plate 2 to move upward through the lifting plate 6. A flip protection mechanism is provided around the assembly machine 1.
[0024] refer to Figure 2 The flip protection mechanism includes multiple support blocks 8 fixedly connected around the box 4. Four round rods 9 are slidably connected to the inner wall of the support blocks 8. Baffles 10 are fixedly connected to the bottom of the round rods 9 on the front and rear sides. Side plates 11 are fixedly connected to the bottom of the round rods 9 on the left and right sides. Bevel gears 12 are fixedly connected to the surface of the round rods 9. The inner sides of the bevel gears 12 mesh with each other. When the left round rod 9 rotates, it can drive all the round rods 9 to rotate synchronously through the bevel gear 12, thereby driving the baffles 10 and side plates 11 to flip upward until the assembly machine 1 is completely covered. A drive mechanism is provided on the rear side of the box 4.
[0025] As a technical optimization of this utility model, by setting a flip protection mechanism, the assembly machine 1 can be fully protected when needed. When transportation or long-term non-use is required, the rotation of the round rod 9 drives the baffle 10 and side plate 11 to flip upward, completely covering the assembly machine 1, effectively preventing external factors from damaging the assembly machine 1 and extending the service life of the assembly machine 1.
[0026] refer to Figure 4 The drive mechanism includes a fixed frame 13 fixedly connected to the bottom of the back of the housing 4. A motor 14 is fixedly connected to the surface of the fixed frame 13. A transmission rod 15 is fixedly connected to the top output shaft of the motor 14. A transmission wheel 16 is fixedly connected to the surface of the transmission rod 15 and the surface of the screw 7. A transmission belt 17 is sleeved on the surface of the transmission wheel 16. A clutch control mechanism is provided on the rear side of the housing 4.
[0027] As a technical optimization of this utility model, an effective power transmission is achieved by setting a drive mechanism. This transmission method has a simple structure, low cost, and can smoothly drive the screw 7 to rotate, ensuring the stable operation of the lifting mechanism. At the same time, setting the drive mechanism at the bottom of the back of the housing 4 makes reasonable use of space and makes the overall structure of the device more compact.
[0028] refer to Figure 5The clutch control mechanism includes a clutch gear 18 fixedly connected to the top of the transmission rod 15. A linkage rod 19 is slidably connected to the inner wall of the clutch gear 18. A worm gear 20 is fixedly connected to the top of the linkage rod 19. A worm wheel 21 meshes with the right side of the worm gear 20. The front of the worm wheel 21 is fixedly connected to the rear end of the left round rod 9. A clutch internal gear cylinder 22 is slidably connected to the surface of the linkage rod 19. The clutch internal gear cylinder 22 can slide downward on the surface of the linkage rod 19 to mesh with the clutch gear 18, thereby causing the transmission rod 15 to drive the linkage rod 19 to rotate.
[0029] As a technical optimization of this utility model, the controllability of the overturning protection mechanism is achieved by setting a clutch control mechanism. Through the engagement and disengagement of the clutch internal gear cylinder 22 and the clutch gear 18, the power transmission between the transmission rod 15 and the linkage rod 19 can be flexibly controlled.
[0030] refer to Figure 5 A tension spring 23 is fixedly connected to the top of the clutch internal gear cylinder 22. The top of the tension spring 23 is fixedly connected to the surface of the fixed frame 13, thereby preventing the clutch internal gear cylinder 22 from moving downward on its own.
[0031] As a technical optimization of this utility model, by setting a tension spring 23, when the clutch internal gear cylinder 22 disengages from the clutch gear 18, the elastic force of the tension spring 23 keeps the clutch internal gear cylinder 22 in the upper position, preventing the clutch internal gear cylinder 22 from moving downward on its own, thus ensuring the stability and reliability of the clutch control mechanism. At the same time, when it is necessary to re-engage the clutch internal gear cylinder 22 with the clutch gear 18, the operator only needs to overcome the elastic force of the tension spring 23 to pull the pull handle 24, making operation convenient.
[0032] refer to Figure 2 The left side of the clutch internal gear cylinder 22 is movably connected to a pull handle 24 via a bearing. Pulling the handle 24 can easily drive the clutch internal gear cylinder 22 to move downward.
[0033] As a technical optimization of this utility model, the addition of a pull handle 24 provides a convenient operating method for the operator. The operator only needs to gently pull the pull handle 24 to move the clutch internal gear cylinder 22 downward, thereby engaging the clutch internal gear cylinder 22 with the clutch gear 18 and controlling the activation of the overturning protection mechanism.
[0034] The working principle and usage process of this utility model are as follows: When the assembly machine 1 needs to be raised, the motor 14 in the drive mechanism starts, and the output shaft of the motor 14 drives the transmission rod 15 to rotate. The transmission wheel 16 on the transmission rod 15 drives the screw 7 to rotate through the transmission belt 17. Since the screw 7 is movably connected to the bottom of the inner wall of the housing 4 through the bearing, and the inner wall of the limit frame 5 is movably connected to the screw 7 through the bearing, and at the same time, the lifting plate 6 slides on the surface of the limit frame 5 and its surface is connected to the inner wall of the limit frame 3, when the screw 7 rotates, the lifting plate 6 will slide upward along the limit frame 5, thereby driving the limit frame 3 and the base plate 2 fixed on the limit frame 3 to move upward, realizing the lifting function of the assembly machine 1; when the assembly machine 1 is not in use or needs to be transported, the assembly machine 1 needs to be flipped over for protection, and the clutch control is operated. The mechanism involves pulling the handle 24, causing the clutch internal gear cylinder 22 to slide downwards on the surface of the linkage rod 19, making the clutch internal gear cylinder 22 mesh with the clutch gear 18. At this time, the rotation of the transmission rod 15 will drive the linkage rod 19 to rotate through the clutch gear 18 (before operation, the assembly machine 1 needs to be raised to the highest position so that when the assembly machine 1 is lowered to its original position, the side plate 11 and the baffle 10 will close). The worm 20 at the top of the linkage rod 19 will rotate accordingly, and the worm 20 will mesh with the worm wheel 21, thereby driving the left round rod 9 to rotate. Since the inner sides of the bevel gears 12 on the surface of the round rod 9 are meshed with each other, the rotation of the left round rod 9 will drive all the round rods 9 to rotate synchronously, thereby causing the baffles 10 on the front and rear sides and the side plates 11 on the left and right sides to flip upwards until the assembly machine 1 is completely covered, thus providing protection. This avoids the inconvenience caused by the linkage assembly machine 1 being easily damaged by bumps and the inability to adjust the operating height, making it easy to use.
[0035] In summary, when this utility model is used, under the action of the lifting mechanism, the flipping protection mechanism, the drive mechanism, and the clutch control mechanism, it can protect the connecting rod assembly machine 1 and quickly adjust the usage height, avoiding the inconvenience caused by the connecting rod assembly machine 1 being easily damaged by bumps and the inability to adjust the usage height, thus giving it the advantage of being easy to use.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A connecting rod assembly machine (1), comprising an assembly machine (1), characterized in that: The lifting mechanism includes a base plate (2) fixedly connected to the bottom of the assembly machine (1). A limit frame (3) is fixedly connected to the bottom of the base plate (2). A box (4) is slidably connected to the surface of the limit frame (3). A limit bracket (5) is fixedly connected to the bottom of the inner wall of the box (4). A lifting plate (6) is slidably connected to the surface of the limit bracket (5). The surface of the lifting plate (6) is fixedly connected to the inner wall of the limit frame (3). A screw (7) is movably connected to the inner wall of the limit bracket (5) through a bearing. The bottom end of the screw (7) is movably connected to the bottom of the inner wall of the box (4) through a bearing. When the screw (7) rotates, it can drive the limit frame (3) and the base plate (2) to move upward through the lifting plate (6). A flip protection mechanism is provided around the assembly machine (1).
2. A connecting rod assembly machine (1) according to claim 1, characterized in that: The flip protection mechanism includes multiple support blocks (8) fixedly connected around the box (4). Four round rods (9) are slidably connected to the inner wall of the support block (8). Baffles (10) are fixedly connected to the bottom of the round rods (9) on the front and rear sides. Side plates (11) are fixedly connected to the bottom of the round rods (9) on the left and right sides. Bevel gears (12) are fixedly connected to the surface of the round rods (9). The inner sides of the bevel gears (12) mesh with each other. When the left round rod (9) rotates, it can drive all the round rods (9) to rotate synchronously through the bevel gears (12), thereby driving the baffles (10) and side plates (11) to flip upward until the assembly machine (1) is completely covered. A drive mechanism is provided on the rear side of the box (4).
3. A connecting rod assembly machine (1) according to claim 2, characterized in that: The drive mechanism includes a fixed frame (13) fixedly connected to the bottom of the back of the housing (4). A motor (14) is fixedly connected to the surface of the fixed frame (13). A transmission rod (15) is fixedly connected to the top output shaft of the motor (14). A transmission wheel (16) is fixedly connected to the surface of the transmission rod (15) and the surface of the screw (7). A transmission belt (17) is sleeved on the surface of the transmission wheel (16). A clutch control mechanism is provided on the rear side of the housing (4).
4. A connecting rod assembly machine (1) according to claim 3, characterized in that: The clutch control mechanism includes a clutch gear (18) fixedly connected to the top of the transmission rod (15). A linkage rod (19) is slidably connected to the inner wall of the clutch gear (18). A worm gear (20) is fixedly connected to the top of the linkage rod (19). A worm wheel (21) meshes with the right side of the worm gear (20). The front of the worm wheel (21) is fixedly connected to the rear end of the left round rod (9). A clutch internal gear cylinder (22) is slidably connected to the surface of the linkage rod (19). The clutch internal gear cylinder (22) can slide downward on the surface of the linkage rod (19) to mesh with the clutch gear (18), thereby causing the transmission rod (15) to drive the linkage rod (19) to rotate.
5. A connecting rod assembly machine (1) according to claim 4, characterized in that: A tension spring (23) is fixedly connected to the top of the clutch internal gear cylinder (22), and the top of the tension spring (23) is fixedly connected to the surface of the fixing frame (13) to prevent the clutch internal gear cylinder (22) from moving downward on its own.
6. A connecting rod assembly machine (1) according to claim 4, characterized in that: The left side of the clutch internal gear cylinder (22) is movably connected to a pull handle (24) via a bearing, and the pull handle (24) can conveniently drive the clutch internal gear cylinder (22) to move downward.