Servo press-fitting equipment for connecting rod and bushing

Abstract

The utility model discloses a servo press-fitting device for a connecting rod and a bushing, which relates to the technical field of auto spare part assembly and comprises a device cabinet, an auxiliary positioning module and a servo press-fitting module, the auxiliary positioning module can perform multiple positioning and fixing on the connecting rod and the bushing before press-fitting, and the servo press-fitting module can perform multiple positioning and fixing on the connecting rod and the bushing before press-fitting. And the servo press-fitting module can be used for press-fitting the bushing into a reserved mounting position of the connecting rod. According to the servo press-fitting equipment for the connecting rod and the lining, by integrating multiple positioning assemblies such as the first positioning piece, the second positioning piece, the third positioning piece and the pressing clamp, multi-dimensional and high-precision positioning of the connecting rod and the lining is achieved. According to the multi-positioning mode, positioning errors can be obviously reduced, accurate matching of the connecting rod and the lining in the press-fitting process is guaranteed, the problem of press-fitting damage caused by inaccurate positioning can be effectively avoided, and therefore the production quality and the yield of automobile parts are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, in particular to a servo press-fitting device for connecting rods and bushings. Background Art

[0002] In the automotive parts manufacturing industry, precise press-fitting of connecting rods and bushings is crucial for ensuring stable performance of engines and other key components. Traditional press-fitting processes often use a single-position jig to position the connecting rods and bushings. While this method simplifies the process, it often suffers from significant positioning errors due to its limited positioning accuracy. During the subsequent press-fitting process, these errors can lead to a loose fit between the connecting rod and bushing, or even misalignment and offset, which can damage the bushing and connecting rod, severely impacting the quality and reliability of automotive parts. To address this issue, we propose a servo press-fit device for connecting rods and bushings. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a servo press-fitting device for a connecting rod and a bushing, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A servo press-fitting device for connecting rods and bushings, including an equipment cabinet, and also including:

[0005] Auxiliary positioning module, which is installed on the upper part of the equipment cabinet and can perform multiple positioning and fixing of the connecting rod and bushing before press-fitting;

[0006] The servo press-fitting module is installed on the upper part of the equipment cabinet and spans above the auxiliary positioning module, and can press-fit the bushing into the installation position reserved for the connecting rod.

[0007] Furthermore, the servo press-fitting device for the connecting rod and bushing further comprises:

[0008] The enclosure is installed on the edge of the upper part of the equipment cabinet, and the enclosure is reserved with a gap;

[0009] Safety gratings, which are installed on both sides of the gaps reserved in the enclosure;

[0010] A human-computer interaction panel is installed on the upper part of the enclosure, and the display end is located on the adjacent side of the gap;

[0011] A control switch is installed on the upper part of the equipment cabinet and is provided with a plurality of control buttons.

[0012] Furthermore, the auxiliary positioning module includes:

[0013] A No. 1 positioning member, which is capable of supporting and positioning the press-fitting portion of the connecting rod and the bushing;

[0014] A second positioning piece, which can position the connecting rod when one end of the connecting rod is press-fitted;

[0015] A third positioning piece, which can position the connecting rod when the other end of the connecting rod is press-fitted;

[0016] A press-down clamp is capable of applying downward pressure to the connecting rod.

[0017] Furthermore, the No. 1 positioning member includes a base, a supporting protrusion ring is installed on the upper part of the base, a positioning guide rod 1 is installed inside the supporting protrusion ring, and the positioning guide rod 1 protrudes from the supporting protrusion ring.

[0018] Furthermore, the No. 1 positioning member also includes a linear guide rail and a positioning drive cylinder. A slider is slidably provided on the upper part of the linear guide rail, and a positioning head is installed on the upper part of the slider. The positioning head is connected to the telescopic end of the positioning drive cylinder.

[0019] Furthermore, the positioning head includes a base, a limiting groove is reserved on one side of the base facing the connecting rod and bushing press-fitting portion, and limiting steps are reserved on the upper and lower parts of the limiting groove.

[0020] Furthermore, the second positioning member includes a bracket, a limit seat is installed on the upper part of the bracket, a receiving groove is reserved on the upper part of the limit seat, and a positioning guide rod 2 is connected to the inside of the receiving groove, and the positioning guide rod 2 protrudes from the receiving groove.

[0021] Furthermore, the servo press-fitting module includes a frame body, a servo electric cylinder is installed on the upper part of the frame body, and a plurality of guide shafts are slidably connected to the upper part of the frame body, the telescopic end of the servo electric cylinder and the bottom ends of the plurality of guide shafts are commonly connected to a lifting seat plate, a pressure sensor is installed at the bottom end of the lifting seat plate, and a lower pressure head is installed at the bottom end of the pressure sensor.

[0022] The utility model provides a servo press-fitting device for connecting rods and bushings. Compared with the existing technology, it has the following advantages:

[0023] This servo press-fitting equipment for connecting rods and bushings uses a multi-positioning method to precisely secure the connecting rods and bushings prior to press-fitting. Specifically, by integrating multiple positioning components—positioning parts #1, #2, and #3—and a hold-down fixture, the equipment achieves multi-dimensional, high-precision positioning of the connecting rods and bushings. This multi-positioning method not only significantly reduces positioning errors, ensuring precise fit between the connecting rod and bushing during press-fitting, but also effectively prevents press-fitting damage caused by inaccurate positioning, thereby improving the production quality and yield rate of automotive parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the connecting rod in the utility model located inside the second positioning piece;

[0026] Figure 3 This is a schematic diagram of the structure of the connecting rod in the utility model located inside the third positioning piece;

[0027] Figure 4 This is a schematic structural diagram of the No. 1 positioning member in the present utility model;

[0028] Figure 5 This is a schematic structural diagram of the positioning head in the utility model;

[0029] Figure 6 This is a schematic structural diagram of the second positioning member in the present utility model;

[0030] Figure 7 This is a structural diagram of the servo press-fitting module in the utility model.

[0031] In the figure: 1. Equipment cabinet; 2. Auxiliary positioning module; 21. Positioning piece No. 1; 211. Base; 212. Support convex ring; 213. Positioning guide rod 1; 22. Positioning piece No. 2; 221. Bracket; 222. Limit seat; 223. Accommodating groove; 224. Positioning guide rod 2; 23. Positioning piece No. 3; 24. Linear guide; 25. Positioning drive cylinder; 26. Slider; 27. Positioning head; 271. Base; 272. Limit groove; 273. Limit step; 28. Pressing fixture; 3. Servo press-fitting module; 31. Frame body; 32. Servo electric cylinder; 33. Guide shaft; 34. Lifting seat plate; 35. Pressure sensor; 36. Pressing head; 4. Enclosure; 5. Safety grating; 6. Human-machine interaction panel; 7. Control switch; 8. Connecting rod; 81. Reserved hole; 9. Bushing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-7 The utility model provides a technical solution: a servo press-fitting device for a connecting rod and a bushing, which is mainly composed of an equipment cabinet 1, an auxiliary positioning module 2, a servo press-fitting module 3, a fence 4, a safety grating 5, a human-machine interaction panel 6 and a control switch 7. Among them, the auxiliary positioning module 2 is installed on the upper part of the equipment cabinet 1, and can perform multiple positioning and fixation on the connecting rod 8 and the bushing 9 before press-fitting. The servo press-fitting module 3 is installed on the upper part of the equipment cabinet 1 and spans above the auxiliary positioning module 2, and can press-fit the bushing 9 into the installation position reserved for the connecting rod 8. The fence 4 is installed on the edge of the upper part of the equipment cabinet 1, and the fence 4 is reserved with a notch. The safety grating 5 is installed in the notch reserved in the fence 4. On both sides of the enclosure 4, the human-machine interaction panel 6 is installed on the upper part of the enclosure 4, and the display end is located on the adjacent side of the notch. The control switch 7 is installed on the upper part of the equipment cabinet 1. The control switch 7 needs to include at least two control buttons for controlling the rise and fall of the pressure head of the servo press-fitting module 3. That is to say, the equipment cabinet 1 serves as the main structure and carries all other components. The auxiliary positioning module 2 and the servo press-fitting module 3 are both installed on the upper part of the equipment cabinet 1. The former is used for positioning and fixing, and the latter is used to perform the press-fitting action. The enclosure 4 and the safety grating 5 constitute safety protection measures to ensure safety during operation. The human-machine interaction panel 6 and the control switch 7 provide an interactive interface and control means between the user and the equipment;

[0034] As mentioned above, the auxiliary positioning module 2 can perform multiple positioning and fixation on the connecting rod 8 and the bushing 9, and is specifically composed of a No. 1 positioning member 21, a No. 2 positioning member 22, a No. 3 positioning member 23 and a pressing fixture 28, wherein the No. 1 positioning member 21 can support and position the press-fitting parts of the connecting rod and the bushing, when pressing one end of the connecting rod, the No. 2 positioning member 22 can position the connecting rod, and when pressing the other end of the connecting rod, the No. 3 positioning member 23 can position the connecting rod, and the pressing fixture 28 can apply downward pressure to the connecting rod. The pressing fixture 28 is composed of a pressing cylinder and a pressing plate. When the connecting rod needs to be fixed, the pressing cylinder drives the pressing plate to press down to the surface of the connecting rod to fix the vertical position of the connecting rod;

[0035] Specifically, first, the No. 1 positioning member 21 includes a base 211, a supporting convex ring 212 is installed on the upper part of the base 211, and a positioning guide rod 213 is installed inside the supporting convex ring 212. The positioning guide rod 213 protrudes from the supporting convex ring 212. In other words, the No. 1 positioning member 21 supports and positions the press-fitting parts of the connecting rod and the bushing through the supporting convex ring 212 and the positioning guide rod 213. The No. 1 positioning member 21 also includes a linear guide rail 24 and a positioning drive cylinder 25. The upper part of the linear guide rail 24 is provided with a sliding The slider 26 has a positioning head 27 mounted on its upper portion. The positioning head 27 is connected to the telescopic end of the positioning drive cylinder 25. That is, the linear guide 24, the slider 26, the positioning head 27, and the positioning drive cylinder 25 constitute an adjustable positioning system that can adjust the position of the positioning head 27 as needed. The positioning head 27 includes a base 271. A limiting groove 272 is reserved on the side of the base 271 facing the connecting rod and bushing press-fitting portion. Limiting steps 273 are reserved on both the upper and lower portions of the limiting groove 272.

[0036] Secondly, the second positioning member 22 and the third positioning member 23 have the same structure, and the second positioning member 22 includes a bracket 221, a limit seat 222 is installed on the upper part of the bracket 221, and a receiving groove 223 is reserved on the upper part of the limit seat 222. The interior of the receiving groove 223 is connected to the second positioning guide rod 224, and the second positioning guide rod 224 protrudes from the receiving groove 223. In other words, the second positioning member 22 and the third positioning member 23 position the connecting rod through the limit seat 222 and the second positioning guide rod 224, and the two have the same structure and are applicable to different ends of the connecting rod;

[0037] Finally, the servo pressing module 3 includes a frame body 31, a servo electric cylinder 32 is installed on the upper part of the frame body 31, and a plurality of guide shafts 33 are slidably connected to the upper part of the frame body 31, the telescopic end of the servo electric cylinder 32 and the bottom ends of the plurality of guide shafts 33 are commonly connected to a lifting seat plate 34, the bottom end of the lifting seat plate 34 is installed with a pressure sensor 35, and the bottom end of the pressure sensor 35 is installed with a lower pressure head 36. That is to say, the frame body 31 serves as a supporting structure, carrying components such as the servo electric cylinder 32 and the guide shaft 33. The telescopic end of the servo electric cylinder 32 drives the lifting seat plate 34 to move up and down to realize the pressing action. The guide shaft 33 ensures the stability and accuracy of the lifting seat plate 34 during movement. The pressure sensor 35 is used to monitor the pressure changes in the pressing process in real time to ensure the pressing quality. The lower pressure head 36 is a key component for performing the pressing action, which directly acts on the connecting rod 8 and the bushing 9.

[0038] When using the servo press-fitting equipment, a bushing 9 needs to be press-fitted on both ends of the connecting rod 8, so the entire press-fitting process needs to be completed in two stages:

[0039] The first process: the staff places the rod body of the connecting rod 8 on the second positioning piece 22. When placing it, the rod body of the connecting rod 8 needs to be located in the receiving groove 223, and the reserved hole on the rod body is sleeved on the outside of the positioning guide rod 224. This is the first positioning. While the rod body is being placed, the end of the connecting rod 8 that needs to be pressed is placed on the supporting convex ring 212, and the reserved press-fitting hole of the end is sleeved on the outside of the positioning guide rod 1 213. Then the bushing 9 is placed inside the reserved press-fitting hole. After placement, the bushing 9 is also sleeved on the outside of the positioning guide rod 1 213. This is The second positioning, then, the driving cylinder 25 extends, pushing the positioning head 27 and the slider 26 as a whole along the direction of the linear guide 24, close to the end of the connecting rod 8, until the positioning head 27 is engaged with the end of the connecting rod 8. When engaged, the end of the connecting rod 8 is located in the limiting groove 272. The shape of the end of the connecting rod 8 has two step protrusions at the upper and lower parts. These two step protrusions will be respectively engaged and fixed in the two relative limiting steps 273. This is the third positioning. Subsequently, the clamp 28 is pressed down to apply downward pressure to the connecting rod 8. This is the fourth positioning;

[0040] After the four positionings are completed, the staff controls the servo electric cylinder 32 to extend by controlling the switch 7. The servo electric cylinder 32 pushes the lifting seat plate 34 downward, pushing the pressure sensor 35 and the pressing head 36 downward as a whole, until the pressing head 36 exerts downward pressure on the connecting rod 8 and the bushing 9, and presses the bushing 9 onto the end of the connecting rod 8, thus completing the press-fitting work at this end.

[0041] The second process is to press-fit the bushing 9 on the other end of the connecting rod 8. Specifically, the staff takes out the connecting rod 8 that has been pressed, and then changes the direction of the connecting rod 8. The subsequent process is the same as the first process. The difference is that due to the shape of the connecting rod 8, the rod body of the connecting rod 8 needs to be placed in the No. 3 positioning piece 23. The specific positioning method is the same as the former. Just complete the press-fitting of this end, which will not be described in detail here.

Claims

1. A servo press-fitting device for connecting rods and bushings, comprising an equipment cabinet (1), characterized in that: Also includes: An auxiliary positioning module (2), the auxiliary positioning module (2) being installed on the upper portion of the equipment cabinet (1) and capable of performing multiple positioning and fixing of the connecting rod and the bushing before press-fitting; A servo press-fitting module (3) is installed on the upper part of the equipment cabinet (1) and spans above the auxiliary positioning module (2), and is capable of press-fitting the bushing into the installation position reserved for the connecting rod; The auxiliary positioning module (2) comprises: A first positioning member (21), the first positioning member (21) can support and position the press-fitting portion of the connecting rod and the bushing; A second positioning member (22), which can position the connecting rod when one end of the connecting rod is press-fitted; A third positioning piece (23) is used to position the connecting rod when the other end of the connecting rod is press-fitted; A pressing fixture (28) is provided, wherein the pressing fixture (28) is capable of applying downward pressure to the connecting rod.

2. A servo press-fitting device for connecting rods and bushings according to claim 1, characterized in that: Also includes: A fence (4), wherein the fence (4) is installed on the edge of the upper portion of the equipment cabinet (1), and a gap is reserved in the fence (4); Safety grating (5), the safety grating (5) is installed on both sides of the reserved gap of the enclosure (4); A human-machine interaction panel (6), wherein the human-machine interaction panel (6) is mounted on the upper portion of the enclosure (4), and a display end is located on an adjacent side of the notch; A control switch (7) is installed on the upper part of the equipment cabinet (1), and the control switch (7) is provided with a plurality of control buttons.

3. The servo press-fitting device for connecting rods and bushings according to claim 1, characterized in that: The first positioning member (21) comprises a base (211), a supporting convex ring (212) is installed on the upper part of the base (211), a positioning guide rod (213) is installed inside the supporting convex ring (212), and the positioning guide rod (213) protrudes from the supporting convex ring (212).

4. The servo press-fitting device for connecting rods and bushings according to claim 1, characterized in that: The first positioning member (21) further comprises a linear guide rail (24) and a positioning drive cylinder (25); a slider (26) is slidably provided on the upper portion of the linear guide rail (24); a positioning head (27) is installed on the upper portion of the slider (26); and the positioning head (27) is connected to the telescopic end of the positioning drive cylinder (25).

5. The servo press-fitting device for connecting rods and bushings according to claim 4, characterized in that: The positioning head (27) comprises a base (271), a limiting groove (272) is reserved on one side of the base (271) facing the connecting rod and bushing press-fitting portion, and limiting steps (273) are reserved on the upper and lower parts of the limiting groove (272).

6. The servo press-fitting device for connecting rods and bushings according to claim 1, characterized in that: The second positioning member (22) includes a bracket (221), a limit seat (222) is installed on the upper part of the bracket (221), a receiving groove (223) is reserved on the upper part of the limit seat (222), and a second positioning guide rod (224) is connected to the interior of the receiving groove (223), and the second positioning guide rod (224) protrudes from the receiving groove (223).

7. The servo press-fitting device for connecting rods and bushings according to claim 1, characterized in that: The servo press-fitting module (3) comprises a frame body (31), a servo electric cylinder (32) is installed on the upper part of the frame body (31), and a plurality of guide shafts (33) are slidably connected to the upper part of the frame body (31), the telescopic end of the servo electric cylinder (32) and the bottom ends of the plurality of guide shafts (33) are commonly connected to a lifting seat plate (34), a pressure sensor (35) is installed at the bottom end of the lifting seat plate (34), and a lower pressure head (36) is installed at the bottom end of the pressure sensor (35).

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