Novel electric handheld piston assembling device

Abstract

The invention discloses a novel electric handheld piston assembling device, and relates to piston assembling, the novel electric handheld piston assembling device comprises a handheld frame, a fixing ring is arranged at the bottom of the handheld frame, and a clamping plate is arranged in the fixing ring; a screw rod is arranged in the handheld frame, a movable sleeve is in threaded connection with the screw rod, the movable sleeve is in sliding connection with the handheld frame, a downward pressing cylinder is fixedly arranged at the bottom of the movable sleeve, and a guide hammer used for installing a piston is fixedly arranged at the bottom of the downward pressing cylinder; the movable sleeve is driven to move up and down by rotating the screw rod, so that the driving frame is driven to move horizontally, the connecting frame is further driven to move, the corresponding sliding blocks move in the radial direction of the fixing ring, the clamping plates are linked through the rotating ring to act synchronously, and clamping and loosening of the piston are achieved. And the initial position of the clamping plate can be adjusted through the threaded groove and the adjusting block, so that the device adapts to pistons with different diameters. According to the device, piston assembling can be conveniently and accurately carried out, piston deflection caused by manual hammering is avoided, operation is easy, and practicability is high.

Description

Technical Field

[0001] This invention relates to piston assembly, and more specifically to a novel electric handheld piston assembly device. Background Technology

[0002] The piston is a core component of an engine, and its assembly quality directly affects engine performance and lifespan. Currently, pistons are generally assembled manually during the final assembly process. During this process, workers first roughly align the piston assembly with the pin hole of the piston sleeve by hand. Then, holding the piston sleeve steady with one hand and using a special hammer in the other, they slowly tap the piston push rod (guide rod) into the sleeve using their experience, until the piston assembly is properly installed.

[0003] This traditional manual assembly method relies on human observation and touch for alignment. However, when striking the piston, only one hand supports the sleeve while the other hand hammers the piston. During the hammering action, the worker's body also moves significantly, which can easily cause the hand supporting the piston and sleeve to wobble. This can lead to the piston and sleeve becoming misaligned, resulting in scratches on the inner wall of the piston or sleeve and producing defective products. The assembly quality is overly dependent on the operator's skill level, resulting in poor consistency. Furthermore, the process is time-consuming and labor-intensive, with low production efficiency. In addition, the repeated hammering poses a safety hazard of tools slipping from the worker's hand and causing injury. Summary of the Invention

[0004] The purpose of this invention is to provide a novel electric handheld piston assembly device to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel electric handheld piston assembly device, comprising a handheld frame, a fixing ring fixedly disposed at the bottom of the handheld frame, and a plurality of clamping plates for clamping the piston slidably disposed within the fixing ring; a screw rotatably disposed within the handheld frame, a movable sleeve threadedly connected to the screw, the movable sleeve being slidably connected to the handheld frame, a lower pressure cylinder fixedly disposed at the bottom of the movable sleeve, and a guide hammer for installing the piston fixedly disposed at the bottom of the lower pressure cylinder.

[0006] Preferably, a drive frame is slidably provided on the side wall of the handheld frame, a connecting rod is fixedly provided on both sides of the drive frame, and a guide sleeve is fixedly provided on both sides of the handheld frame, with each connecting rod and each guide sleeve being slidably connected in a corresponding manner.

[0007] Preferably, each of the clamping plates is rotatably provided with a clamping rod, and one of the clamping rods is provided with a connecting frame, the two ends of which are fixedly connected to two of the connecting rods.

[0008] Preferably, a rotating ring is rotatably provided on the outer circumference of the fixed ring, and each of the clamping rods is provided with a slider. The rotating ring is provided with multiple arc-shaped grooves, and each slider is slidably disposed in each arc-shaped groove in a corresponding manner.

[0009] Preferably, each clamping rod has a threaded groove at the end away from the clamping plate, and each clamping rod is threadedly connected to an adjusting block, with each adjusting block being fixedly connected to each slider in a corresponding manner.

[0010] Preferably, each of the clamping plates is fixedly provided with a limiting rod, and each of the limiting rods is slidably connected to the fixing ring.

[0011] Preferably, a driving block is fixedly provided on the outer peripheral surface of the movable sleeve, and an inclined groove is provided on the driving frame, in which the driving block slides.

[0012] Preferably, the drive frame is also provided with a vertical slot that is fixedly connected to the inclined slot.

[0013] In the above technical solution, the present invention provides a novel electric handheld piston assembly device, which has the following beneficial effects: by rotating the screw, the moving sleeve moves up and down, thereby driving the drive frame to move horizontally, which in turn drives the connecting frame to move, causing the corresponding slider to move radially along the fixed ring. The rotating ring then links the various clamping plates to move synchronously, achieving the clamping and releasing of the piston. The initial position of the clamping plates can be adjusted using threaded grooves and adjusting blocks to accommodate pistons of different diameters. This device enables convenient and accurate piston assembly, avoiding piston misalignment caused by manual hammering. It is simple to operate and highly practical. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the connecting rod provided in an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the movable sleeve provided in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the rotating ring provided in an embodiment of the present invention;

[0019] Figure 5This is a schematic diagram of the clamping plate provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Handheld frame; 2. Protective shell; 3. Servo motor; 4. Screw; 5. Moving sleeve; 6. Pressing cylinder; 7. Guide hammer; 8. Drive frame; 9. Inclined groove; 10. Vertical groove; 11. Drive block; 12. Start button; 13. Fixing ring; 14. Rotating ring; 15. Arc groove; 16. Slider; 17. Adjusting block; 18. Clamping rod; 19. Threaded groove; 20. Clamping plate; 21. Limiting rod; 22. Connecting frame; 23. Connecting rod; 24. Guide sleeve. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-5 A novel electric handheld piston assembly device, comprising a handheld frame 1, a fixing ring 13 fixedly mounted at the bottom of the handheld frame 1, and multiple clamping plates 20 for clamping the piston slidably mounted inside the fixing ring 13; a screw 4 rotatably mounted inside the handheld frame 1, a movable sleeve 5 threadedly connected to the screw 4, the movable sleeve 5 slidably connected to the handheld frame 1, a pressing cylinder 6 fixedly mounted at the bottom of the movable sleeve 5, and a guide hammer 7 for installing the piston fixedly mounted at the bottom of the pressing cylinder 6; a protective shell 2 fixedly mounted on the handheld frame 1, a servo motor 3 fixedly mounted inside the protective shell 2, and a start button located at the grip position of the handheld frame 1. Button 12 and a controller (not shown in the figure) are also installed inside the handheld frame 1. The start button 12 and the servo motor 3 are electrically connected to the controller. The rotation of the servo motor 3 is controlled by the start button 12 and the controller. The servo motor 3 drives the screw 4 to rotate forward and backward, thereby moving the moving sleeve 5 up and down. In use, the clamping plates 20 surround the piston and clamp the piston. Then, the handheld frame 1 is moved to align the piston with the piston sleeve. At this time, the servo motor 3 is started to drive the screw 4 to rotate, so that the moving sleeve 5 moves the guide hammer 7 down, thereby pressing the piston into the piston sleeve through the guide hammer 7, completing the installation.

[0024] Specifically, a drive frame 8 is slidably mounted on the side wall of the handheld frame 1. Connecting rods 23 are fixedly mounted on both sides of the drive frame 8, and guide sleeves 24 are fixedly mounted on both sides of the handheld frame 1. Each connecting rod 23 and each guide sleeve 24 are slidably connected in a corresponding manner. Through the cooperation of each guide sleeve 24 and the connecting rod 23, the drive frame 8 can slide stably on the handheld frame 1. When the moving sleeve 5 moves up and down, it can drive the drive frame 8 to move horizontally, thereby driving the clamping plate 20 to move, and thus clamping and releasing the piston.

[0025] Specifically, each clamping plate 20 is rotatably equipped with a clamping rod 18, and one of the clamping rods 18 is equipped with a connecting frame 22. The two ends of the connecting frame 22 are fixedly connected to two connecting rods 23. The two ends of the connecting frame 22 are fixedly connected to the two connecting rods 23 at the bottom of the hand-held frame 1. When the drive frame 8 moves along the connecting rod 23, the corresponding clamping rod 18 can be moved through the connecting rod 23 and the connecting frame 22, thereby clamping and releasing the piston.

[0026] Specifically, a rotating ring 14 is rotatably mounted on the outer circumference of the fixed ring 13. Each clamping rod 18 is equipped with a slider 16. The rotating ring 14 has multiple arc-shaped grooves 15, and each slider 16 is slidably mounted in each arc-shaped groove 15. There are four clamping plates 20, which are evenly distributed within the fixed ring 13. One of the clamping rods 18 is connected to the connecting frame 22. When the drive frame 8 moves along the connecting rod 23, it will drive the corresponding clamping rod 18 to move radially along the fixed ring 13. At this time, the corresponding slider 16 slides in the arc-shaped groove 15. Since the clamping rod 18 can only move radially along the fixed ring 13, the movement of the slider 16 will drive the rotating ring 14 to rotate, thereby driving each slider 16 to move through each arc-shaped groove 15. Thus, when the drive frame 8 moves, it can drive all the clamping plates 20 to move together, thereby clamping or releasing the piston.

[0027] Specifically, each clamping rod 18 has a threaded groove 19 at the end away from the clamping plate 20, and each clamping rod 18 is threadedly connected to an adjusting block 17. Each adjusting block 17 is fixedly connected to each slider 16 in a one-to-one correspondence. Each adjusting block 17 has an internal thread that matches the threaded groove 19. Since the distance that the moving sleeve 5 moves up and down to drive the drive frame 8 is fixed each time, the distance that the slider 16 drives the adjusting block 17 to move radially along the fixed ring 13 is also fixed each time. At this time, by rotating each clamping rod 18, the position of each clamping plate 20 in the fixed ring 13 can be adjusted through the cooperation of the threaded groove 19 and the adjusting block 17, so as to clamp pistons of different diameters and increase applicability.

[0028] Specifically, each clamping plate 20 is fixedly provided with a limiting rod 21, and each limiting rod 21 is slidably connected to the fixing ring 13; each limiting rod 21 is also slidably connected to the corresponding adjusting block 17. When the clamping rod 18 is rotated to adjust the position of the clamping plate 20, the limiting rod 21 can prevent the clamping plate 20 from rotating with the clamping rod 18, and at the same time can prevent the adjusting block 17 from rotating, so that the adjusting block 17 can move stably radially along the fixing ring 13.

[0029] Specifically, a drive block 11 is fixedly installed on the outer periphery of the movable sleeve 5, and a sloping groove 9 is provided on the drive frame 8, within which the drive block 11 slides; for example Figure 3As shown, when the movable sleeve 5 is at the top of the screw 4, the drive block 11 is at the top of the inclined groove 9. At this time, the drive frame 8 and the handheld frame 1 are in contact. At this time, the two connecting rods 23 at the bottom can make each clamping plate 20 open. Each slider 16 is also at the end of the corresponding arc groove 15 away from the center of the fixed ring 13. When the operator moves the handheld frame 1 to the piston, the start button 12 is pressed to make the servo motor 3 drive the screw 4 to rotate, thereby causing the movable sleeve 5 to move down. During the downward movement of the movable sleeve 5, the drive block 11 will move down along the inclined groove 9, thereby driving the drive frame 8 to move away from the handheld frame 1 through the inclined groove 9, thereby driving the connecting frame 22 to move closer to the center of the fixed ring 13, so that the corresponding slider 16 and the adjusting block 17 move towards the axis of the fixed ring 13, and the rotating ring 14 drives each slider 16 and the adjusting block 17 to move together. When the drive block 11 moves to the bottom of the inclined groove 9, the servo motor 3 stops, thereby clamping the piston.

[0030] Specifically, the drive frame 8 is also provided with a vertical groove 10 that is fixedly connected to the inclined groove 9; the drive block 11 slides up and down between the inclined groove 9 and the vertical groove 10. When the drive block 11 slides in the inclined groove 9, it can drive the drive frame 8 to move, thereby clamping and releasing the piston. When the drive block 11 enters the vertical groove 10, the drive frame 8 remains stationary, while the moving sleeve 5 drives the guide hammer 7 to move continuously downward. In the initial state, the moving sleeve 5 is at the top of the screw 4, and the drive block 11 is at the top of the inclined groove 9. At this time, the start button 12 is pressed, and the servo motor 3 is started by the controller. When the drive block 11 moves to the bottom of the inclined groove 9, the servo motor 3 is stopped by the controller, thereby controlling the clamping action to complete. When the moving sleeve 5 moves to the point where the drive block 11 reaches the bottom of the inclined groove 9, the servo motor 3 stops, thus clamping the piston. When the operator aligns the piston with the piston sleeve, the start button 12 is pressed again. The controller drives the screw 4 to rotate, causing the moving sleeve 5 to move the guide hammer 7 down a certain distance. When the piston is completely pressed into the piston sleeve, the controller controls the servo motor 3 to stop again. At this time, the start button 12 is pressed again, and the controller controls the servo motor 3 to reverse and move the moving sleeve 5 to the top of the screw 4 again. Each time the start button 12 is pressed, the controller controls the servo motor 3 to cycle through these three steps. This is prior art for those skilled in the art and will not be described in detail.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel electric handheld piston assembly device, comprising a handheld frame (1), characterized in that, The bottom of the handheld frame (1) is fixedly provided with a fixing ring (13), and multiple clamping plates (20) for clamping the piston are slidably provided inside the fixing ring (13). A screw (4) is rotatably installed inside the handheld frame (1). A movable sleeve (5) is threaded onto the screw (4). The movable sleeve (5) is slidably connected to the handheld frame (1). A pressure cylinder (6) is fixedly installed at the bottom of the movable sleeve (5). A guide hammer (7) for installing a piston is fixedly installed at the bottom of the pressure cylinder (6).

2. The novel electric handheld piston assembly device according to claim 1, characterized in that, The handheld frame (1) has a drive frame (8) slidably mounted on its side wall. Both sides of the drive frame (8) are fixedly mounted with connecting rods (23). Both sides of the handheld frame (1) are fixedly mounted with guide sleeves (24). Each connecting rod (23) and each guide sleeve (24) are slidably connected in a corresponding manner.

3. The novel electric handheld piston assembly device according to claim 2, characterized in that, Each of the clamping plates (20) is rotatably provided with a clamping rod (18), and one of the clamping rods (18) is provided with a connecting frame (22), and the two ends of the connecting frame (22) are fixedly connected to two of the connecting rods (23).

4. A novel electric handheld piston assembly device according to claim 3, characterized in that, The outer circumferential surface of the fixed ring (13) is rotatably provided with a rotating ring (14), and each of the clamping rods (18) is provided with a slider (16). The rotating ring (14) is provided with multiple arc grooves (15), and each slider (16) is slidably disposed in each arc groove (15) in a corresponding manner.

5. A novel electric handheld piston assembly device according to claim 4, characterized in that, Each clamping rod (18) has a threaded groove (19) at the end away from the clamping plate (20), and each clamping rod (18) is threaded with an adjusting block (17). Each adjusting block (17) is fixedly connected to each slider (16) in a one-to-one correspondence.

6. A novel electric handheld piston assembly device according to claim 5, characterized in that, Each of the clamping plates (20) is fixedly provided with a limiting rod (21), and each of the limiting rods (21) is slidably connected to the fixing ring (13).

7. A novel electric handheld piston assembly device according to claim 1, characterized in that, A drive block (11) is fixedly provided on the outer circumferential surface of the movable sleeve (5), and a slanted groove (9) is provided on the drive frame (8), and the drive block (11) slides in the slanted groove (9).

8. A novel electric handheld piston assembly device according to claim 7, characterized in that, The drive frame (8) is also provided with a vertical groove (10) that is fixedly connected to the inclined groove (9).

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