Cylinder valve guide press fitting device

Abstract

The utility model relates to the technical fields of press -fitting frock, especially a cylinder body valve guide pipe press -fitting device, it can carry out the compression fixed of cylinder cover, prevents the deviation of cylinder cover in the press -fitting process, is convenient for adjusting the position of cylinder cover, reduces the labor intensity of staff, including workbench, base, press -fitting part, support part, fixed part and buffer assembly, workbench bottom installs in the base top, workbench top is installed with press -fitting part, workbench top is installed with support part, workbench top left and right sides are installed with fixed part, and press -fitting part is installed with buffer assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of press-fitting tooling, and in particular to a cylinder block valve guide press-fitting device. Background Technology

[0002] The cylinder head valve guide is a guiding device for engine valves. It guides the valves and transfers heat from the valve stem to the cylinder head via the valve guide. During engine assembly, the valve guide is pressed into the guide bottom hole in the cylinder head by external force, and then the guide hole is precision machined. Existing technology publication number CN212146221U discloses a press-fitting device for cylinder head valve guides, which includes a movable connecting rod, a pressure rod extending longitudinally through the middle of the connecting rod, a left movable rod and a right movable rod extending laterally through the connecting rod, a first left vertical fixing rod and a second left vertical fixing rod movably disposed at both ends of the left movable rod, a first right vertical fixing rod and a second right vertical fixing rod movably disposed at both ends of the right movable rod, and a ring assembly; the lower ends of the first left vertical fixing rod, the second left vertical fixing rod, the first right vertical fixing rod, and the second right vertical fixing rod respectively pass through the ring assembly and are connected by a first left wing nut, a second left wing nut, a first right wing nut, and a second right wing nut. However, during press fitting, it is easy to cause press fitting errors between the cylinder head and the guide tube, resulting in unsatisfactory press fitting effect. Furthermore, the fixing effect of the cylinder head guide tube during press fitting is not good, which can easily cause it to shift and lead to failure of guide tube press fitting, resulting in increased production costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a cylinder block valve guide press-fitting device that can press and fix the cylinder head, prevent the cylinder head from shifting during the press-fitting process, facilitate the adjustment of the cylinder head position, and reduce the labor intensity of workers.

[0004] This utility model discloses a cylinder block valve guide press-fitting device, comprising a worktable, a base, a press-fitting component, a support component, a fixing component, and a buffer assembly. The bottom of the worktable is mounted on the top of the base, the press-fitting component is mounted on the top of the worktable, the support component is mounted on the top of the worktable, and the fixing components are mounted on the left and right sides above the worktable. The buffer assembly is mounted on the press-fitting component. The cylinder head is placed on the support component, and the fixing component can clamp and position the cylinder head to prevent the cylinder head from shifting during the press-fitting process. The press-fitting component presses the valve guide, reducing the production and processing cost, ensuring that the valve guide is pressed into the cylinder head with good quality and quantity, and improving processing efficiency. The buffer assembly provides a cushioning effect during press-fitting to avoid damage to the cylinder head.

[0005] Preferably, the pressing component includes multiple columns, two horizontal plates, a top plate, a telescopic cylinder, a pressure sensor, a connecting seat, and a pressing head. The multiple columns are respectively installed at the four corners of the top of the workbench. A horizontal plate is installed on the top of the columns, and a top plate is installed between the two horizontal plates. A telescopic cylinder is installed in the middle of the top plate, and a pressure sensor is installed at the bottom of the telescopic cylinder. A connecting seat is installed below the pressure sensor, and the pressing head is detachably installed on the connecting seat. When the telescopic cylinder is activated, it pushes the connecting seat downward. The descending connecting seat drives the pressing head to press down on the guide tube. At the same time, the pressure sensor can detect the pressure in real time and adjust the pressure of the telescopic cylinder in a timely manner to avoid excessive pressure that could damage the cylinder head and the guide tube.

[0006] Preferably, it also includes multiple guide slide rods and connecting plates. Multiple guide slide rods are evenly installed on the rear wall of the connecting seat. The guide slide rods are slidably installed on the top plate, and the top of the guide slide rods are connected to the connecting plates. When the connecting seat moves downward, it drives the guide slide rods to slide on the top plate, guiding and limiting them to ensure stability during pressing and improve processing accuracy.

[0007] Preferably, the buffer assembly includes multiple fixed rods, an arc-shaped plate, multiple damping rods, a contact plate, and multiple springs. Fixed rods are installed at the bottom of the guide slide rods, arc-shaped plates are installed at the bottom of the multiple fixed rods, multiple damping rods are evenly installed at the bottom of the arc-shaped plates, and contact plates are installed at the bottom of the damping rods. Springs are fitted around the outside of the damping rods, with the bottom of the springs connected to the top of the contact plates, and the top of the springs connected to the bottom of the arc-shaped plates. During the pressing process, the contact plate first contacts the upper surface of the cylinder head. Due to the pressure, the damping rods transmit pressure to the springs, causing the springs to contract on the damping rods. The continuous pressing of the pressing head causes the restoring force of the springs to bring the contact plate into contact with the upper surface of the cylinder head, thus pressing and fixing the cylinder head to prevent displacement during the pressing process.

[0008] Preferably, the support components include a buffer, a support plate, and a placement plate. A support groove is provided on the top of the worktable, and a mounting hole is provided at the bottom of the support groove. The buffer is fixed in the mounting hole, and a support plate is installed on the top of the buffer. The placement plate is installed on the top of the support plate. The cylinder head is placed on top of the placement plate, and the placement plate supports the cylinder head. The use of the buffer can provide a cushioning effect during press fitting.

[0009] Preferably, the fixing components include two fixing frames, two electric telescopic rods, and two push blocks. The two fixing frames are installed on two columns on the left and right sides. The electric telescopic rods are installed on the fixing frames, and the telescopic ends of the electric telescopic rods are equipped with push blocks. Activating the electric telescopic rods pushes the two push blocks closer together, thereby pushing the cylinder head to facilitate adjustment of the cylinder head's position and reduce the labor intensity of the workers.

[0010] Preferably, it also includes two sets of limiting guide rods. Limiting guide rods are installed at the front and rear ends of the outer wall of the push block, and the limiting guide rods are slidably installed on the fixed frame. When the push block moves, it drives the limiting guide rods to slide on the fixed frame to limit and guide them, improve the connection strength, and ensure stability.

[0011] Preferably, it also includes two rubber pads, with the rubber pads installed on the inner wall of the push block; the rubber pads can prevent damage to the cylinder head.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the cylinder head is placed on the support component, and the cylinder head can be clamped and positioned by the fixing component to prevent the cylinder head from shifting during the pressing process. The conduit is pressed by the pressing component, which reduces the production and processing cost. It can ensure that the conduit is pressed into the cylinder head with good quality and quantity, which improves the processing efficiency. The buffer component can provide a buffering effect during pressing to avoid damage to the cylinder head. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the isometric structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the rear side of this utility model; Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model; Figure 5 This is a front view structural diagram of the present invention; The following are labels in the attached diagram: 1. Workbench; 2. Base; 3. Column; 4. Horizontal plate; 5. Top plate; 6. Telescopic cylinder; 7. Pressure sensor; 8. Connecting seat; 9. Press head; 10. Guide slide rod; 11. Connecting plate; 12. Fixing rod; 13. Arc plate; 14. Damping rod; 15. Contact plate; 16. Spring; 17. Fixing frame; 18. Electric telescopic rod; 19. Push block; 20. Limiting guide rod; 21. Rubber pad; 22. Buffer; 23. Support plate; 24. Placement plate. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0015] like Figures 1 to 5As shown, the bottom of the workbench 1 is mounted on the top of the base 2. Multiple columns 3 are respectively mounted at the four corners of the top of the workbench 1. A horizontal plate 4 is mounted on the top of the column 3. A top plate 5 is mounted between two horizontal plates 4. A telescopic cylinder 6 is mounted in the middle of the top plate 5. A pressure sensor 7 is mounted at the bottom of the telescopic cylinder 6. A connecting seat 8 is mounted below the pressure sensor 7. A pressing head 9 is detachably mounted on the connecting seat 8. Multiple guide slide rods 10 are evenly mounted on the rear wall of the connecting seat 8. The guide slide rods 10 are slidably mounted on the top plate 5. A connecting plate 11 is connected to the top of the guide slide rod 10. A fixing rod 12 is mounted at the bottom of the guide slide rod 10. An arc plate 13 is mounted at the bottom of the multiple fixing rods 12. Multiple damping rods 14 are evenly mounted at the bottom of the arc plate 13. 4. A contact plate 15 is installed at the bottom. A spring 16 is fitted on the outside of the damping rod 14. The bottom of the spring 16 is connected to the top of the contact plate 15. The top of the spring 16 is connected to the bottom of the arc plate 13. A support groove is opened at the top of the worktable 1. An installation hole is opened at the bottom of the support groove. A buffer 22 is fixed in the installation hole. A support plate 23 is installed on the top of the buffer 22. A placement plate 24 is installed on the top of the support plate 23. Two fixed frames 17 are installed on two columns 3 on the left and right sides. An electric telescopic rod 18 is installed on the fixed frame 17. A push block 19 is installed at the telescopic end of the electric telescopic rod 18. Limiting guide rods 20 are installed at the front and rear ends of the outer wall of the push block 19. The limiting guide rods 20 are slidably installed on the fixed frame 17. A rubber pad 21 is installed on the inner wall of the push block 19. The cylinder head is placed on top of the mounting plate 24, which supports it. The use of the buffer 22 provides cushioning during press-fitting. Activating the electric telescopic rod 18 pushes the two push blocks 19 closer together, pushing the cylinder head to facilitate position adjustment and reduce worker workload. As the push blocks 19 move, they cause the limiting guide rod 20 to slide on the fixing frame 17, providing limiting guidance, improving connection strength, and ensuring stability. The rubber pad 21 prevents damage to the cylinder head. Activating the telescopic cylinder 6 pushes the connecting seat 8 downwards. The descending connecting seat 8 causes the press-fitting head 9 to press down on the guide tube. Simultaneously, the pressure sensor 7 can detect... The pressure is detected in real time, and the pressure of the telescopic cylinder 6 can be adjusted in time to avoid damage to the cylinder head and guide tube due to excessive pressure. When the connecting seat 8 moves downward, it drives the guide slide rod 10 to slide on the top plate 5 to guide and limit it, ensuring stability during pressing and improving processing accuracy. During the pressing process, the contact plate 15 first contacts the upper surface of the cylinder head. Due to the pressure, the damping rod 14 transmits pressure to the spring 16, causing the spring 16 to contract on the damping rod 14. The continuous pressing of the pressing head 9 and the restoring force of the spring 16 cause the contact plate 15 to contact the upper surface of the cylinder head, pressing and fixing the cylinder head to prevent the cylinder head from shifting during the pressing process.

[0016] like Figures 1 to 5As shown, this utility model discloses a cylinder block valve guide press-fitting device. During operation, the cylinder head is placed on top of the placement plate 24, which supports the cylinder head. The use of the buffer 22 provides a cushioning effect during press-fitting. Activating the electric telescopic rod 18 pushes the two push blocks 19 closer together, pushing the cylinder head to facilitate position adjustment. Activating the telescopic cylinder 6 pushes the connecting seat 8 downwards, causing the press-fitting head 9 to press down on the valve guide. Simultaneously, the pressure sensor 7 can detect the pressure in real time and adjust accordingly. The downward pressure of the telescopic cylinder 6 is designed to prevent excessive pressure from damaging the cylinder head and guide tubes. When the connecting seat 8 moves downward, it drives the guide slide rod 10 to slide on the top plate 5, guiding and limiting it. During the downward pressing process, the contact plate 15 first contacts the upper surface of the cylinder head. Due to the pressure, the damping rod 14 transmits pressure to the spring 16, causing the spring 16 to contract on the damping rod 14. The continuous downward pressing of the pressing head 9 causes the restoring force of the spring 16 to make the contact plate 15 contact the upper surface of the cylinder head, pressing and fixing the cylinder head to prevent it from shifting during the pressing process.

[0017] The telescopic cylinder 6, pressure sensor 7, damping rod 14, and electric telescopic rod 18 of the cylinder valve guide press-fitting device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cylinder valve guide press fitting device characterized by comprising: It includes a worktable (1), a base (2), a pressing component, a support component, a fixing component, and a buffer assembly. The bottom of the worktable (1) is installed on the top of the base (2). The pressing component is installed on the top of the worktable (1). The support component is installed on the top of the worktable (1). The fixing components are installed on the left and right sides above the worktable (1). The buffer assembly is installed on the pressing component.

2. A cylinder valve guide press fitting device according to claim 1, wherein The pressing component includes multiple columns (3), two horizontal plates (4), a top plate (5), a telescopic cylinder (6), a pressure sensor (7), a connecting seat (8), and a pressing head (9). Multiple columns (3) are installed at the four corners of the top of the workbench (1). A horizontal plate (4) is installed on the top of the column (3). A top plate (5) is installed between the two horizontal plates (4). A telescopic cylinder (6) is installed in the middle of the top plate (5). A pressure sensor (7) is installed at the bottom of the telescopic cylinder (6). A connecting seat (8) is installed below the pressure sensor (7). The pressing head (9) is detachably installed on the connecting seat (8).

3. The cylinder block valve guide press-fitting device as described in claim 2, characterized in that, It also includes multiple guide slide rods (10) and connecting plates (11). Multiple guide slide rods (10) are evenly installed on the rear wall of the connecting seat (8). The guide slide rods (10) are slidably installed on the top plate (5). The top of the guide slide rods (10) is connected to the connecting plate (11).

4. The cylinder block valve guide press-fitting device as described in claim 3, characterized in that, The buffer assembly includes multiple fixed rods (12), an arc plate (13), multiple damping rods (14), a contact plate (15), and multiple springs (16). The bottom of the guide slide rod (10) is equipped with fixed rods (12), the bottom of the multiple fixed rods (12) is equipped with an arc plate (13), the bottom of the arc plate (13) is evenly equipped with multiple damping rods (14), the bottom of the damping rods (14) is equipped with contact plates (15), the springs (16) are fitted on the outside of the damping rods (14), the bottom of the springs (16) is connected to the top of the contact plates (15), and the top of the springs (16) is connected to the bottom of the arc plate (13).

5. A cylinder valve guide press fitting device according to claim 1, wherein The supporting components include a buffer (22), a support plate (23) and a placement plate (24). The top of the workbench (1) is provided with a support groove, and the bottom of the support groove is provided with an installation hole. The buffer (22) is fixed in the installation hole. The top of the buffer (22) is provided with a support plate (23), and the top of the support plate (23) is provided with a placement plate (24).

6. A cylinder valve guide press fitting device according to claim 2, wherein The fixed components include two fixed frames (17), two electric telescopic rods (18) and two push blocks (19). The two fixed frames (17) are installed on two columns (3) on the left and right sides. The electric telescopic rods (18) are installed on the fixed frames (17), and the push blocks (19) are installed on the telescopic ends of the electric telescopic rods (18).

7. A cylinder valve guide press fitting device according to claim 6, wherein It also includes two sets of limiting guide rods (20). The front and rear ends of the outer wall of the push block (19) are equipped with limiting guide rods (20), and the limiting guide rods (20) are slidably installed on the fixed frame (17).

8. The cylinder block valve guide press-fitting device as described in claim 6, characterized in that, It also includes two rubber pads (21), and the inner wall of the push block (19) is fitted with rubber pads (21).

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