Piston mounting clamp

Abstract

The utility model provides a piston installation clamp which comprises a vertically-arranged supporting plate, a horizontal supporting rod is movably arranged on one side of the supporting plate, a first driving assembly used for driving the supporting rod to move up and down is arranged on the supporting plate, and a clamping assembly is arranged on the supporting rod. The clamping assembly comprises a supporting barrel which is vertically fixed to the end, away from the supporting plate, of the supporting rod, the two ends of the supporting barrel are open, a vertical fixing sleeve with the open bottom face is fixed to the bottom end of the supporting barrel, and a supporting assembly is arranged at the bottom of the supporting plate. The piston assembling device is high in automation degree, the first driving assembly, the fixed sleeve, the movable sleeve and the second driving assembly are arranged, the piston can be automatically clamped, fixed and assembled, the physical strength of operators is effectively saved, meanwhile, the supporting assembly is further arranged, the whole device can be supported in the assembling process, and the assembling efficiency is improved. And the workload of operators is greatly reduced, so that the assembly precision and the assembly efficiency are improved, and the assembly quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of piston processing, in particular to a piston installation fixture. Background Art

[0002] The piston, as an indispensable precision component inside the engine, its role is far more than just a simple moving part. Inside the engine cylinder block, the piston plays a key role in power conversion. It is not only the front-line fighter bearing the pressure of high-temperature and high-pressure combustion gases, but also an important bridge connecting the cylinder and the crankshaft. Through the close cooperation of the piston pin and the connecting rod, the piston can convert the huge thrust generated by fuel combustion in the cylinder into rotational power, driving the crankshaft to rotate, and then providing a continuous power source for the whole vehicle through the transmission system.

[0003] In the manufacturing and assembly process of the piston, every link is crucial. On the piston assembly line, workers and machines work together to assemble precision components such as connecting rods, oil rings, and compression rings onto the piston body one by one to form a complete piston assembly. These assemblies are then carefully packed and transported to the engine assembly line to prepare for their ultimate mission.

[0004] However, in the assembly process of the engine cylinder block, although the traditional manual operation mode has a long history, it also faces many challenges. Manually clamping the piston for assembly not only requires operators to have a high level of professional skills and patience, but also greatly tests their physical strength and endurance. Long-term high-intensity operations not only increase the physical burden on operators, but may also lead to a decrease in assembly accuracy and assembly efficiency due to human factors, thereby affecting the overall performance and reliability of the engine. Summary of the Utility Model

[0005] The utility model discloses a piston installation fixture, which solves the problem that in the assembly process of the traditional automobile engine cylinder block, only manual clamping of the piston for assembly increases the physical burden on the operator, resulting in a decrease in assembly accuracy and assembly efficiency, and further affecting the overall performance and reliability of the engine.

[0006] To solve the above technical problems, the utility model specifically adopts the following technical solutions:

[0007] A piston installation fixture includes a vertically arranged support plate. Horizontally arranged support rods are movably provided on one side of the support plate. A first driving component for driving the support rods to move up and down is provided on the support plate. A clamping component is provided on the support rods. The clamping component includes a support cylinder vertically fixed at one end of the support rod away from the support plate and open at both ends. A fixed sleeve that is vertical and open at the bottom is fixed at the bottom of the support cylinder. A movable sleeve that is vertical and open at the bottom is movably provided in the fixed sleeve. The inner wall of the fixed sleeve is in contact with the outer wall of the movable sleeve. The outer wall of the movable sleeve is an inclined structure with an increasing diameter from top to bottom. The movable sleeve is an elastic member. A plurality of movable cavities are formed on the side wall of the movable sleeve and the side wall of the movable sleeve is a movable structure. A second driving component for driving the movable sleeve to move up and down in the fixed sleeve is provided in the support cylinder. A handle is fixed on the side of the support plate facing away from the clamping component. A support component is provided at the bottom of the support plate.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The first driving component is used to make the support rod located at the topmost position, and the second driving component is used to drive the movable sleeve to move downward so that it is located outside the fixed sleeve. The staff holds the whole device through the handle, so that the movable sleeve surrounds the head of the piston. Then, the second driving component is used to drive the movable sleeve to move upward. Since the inner wall of the fixed sleeve is an inclined structure with a decreasing diameter from top to bottom and the outer wall of the movable sleeve has a matching inclined structure corresponding to the inner wall of the fixed sleeve, during the upward movement, the inwardly inclined inner wall of the fixed sleeve will gradually squeeze the outwardly inclined side wall of the movable sleeve. And because a plurality of movable cavities are formed on the side wall of the movable sleeve and the side wall of the movable sleeve is a movable structure, the side wall of the movable sleeve can be made to contract inward, so that the movable sleeve tightens and fixes the head of the piston. Then, the whole device is moved and the bottom of the piston is aligned with the engine cylinder block to be assembled. At this time, the support component is in contact with the top surface of the cylinder block, which can support the whole device to reduce the working burden of the operator. Then, the first driving component is used to make the support rod move downward, and the whole piston can be driven to move downward, so as to push the piston into the engine cylinder block. After the piston is pushed into the cylinder block, the second driving component is used to drive the movable sleeve to move downward. Since the movable sleeve is an elastic member, the movable sleeve will gradually rebound during the downward movement, so that the piston gradually disengages from the fixation of the movable sleeve, and thus the assembly operation of the piston can be realized. The utility model has a high degree of automation. By setting the first driving component, the fixed sleeve, the movable sleeve and the second driving component, the clamping and fixing and assembly operations of the piston can be automatically completed, effectively saving the physical strength of the operator. At the same time, a support component is also provided, which can support the whole device during assembly, greatly reducing the working burden of the operator, thereby improving the assembly accuracy and assembly efficiency and ensuring the assembly quality. Description of the Drawings

[0010] Figure 1It is the front view schematic diagram of the present utility model;

[0011] Figure 2 It is the front view cross-sectional view of the clamping assembly of the present utility model;

[0012] Figure 3 It is the front view cross-sectional view of the support plate of the present utility model;

[0013] Figure 4 It is the top view schematic diagram of the support base of the present utility model;

[0014] Figure 5 It is the top view schematic diagram of the support rod of the present utility model;

[0015] In the figure: 1. Support plate; 11. Cavity; 12. Power supply; 13. Control panel; 2. Support rod; 21. Adjusting rod; 3. Support cylinder; 4. Fixed sleeve; 41. Limiting block; 5. Movable sleeve; 51. Connecting block; 52. Automatic push rod; 53. Movable cavity; 54. Groove; 55. Protrusion; 6. Handle; 61. Concave nest; 7. Lead screw; 71. Motor; 72. Slide block; 8. Support base; 81. Connecting piece; 811. Through hole; 82. Plug; 83. Rubber pad. Specific embodiments

[0016] The following will describe in detail the specific content of the present utility model in conjunction with the drawings and embodiments.

[0017] As Figure 1 and Figure 2 shown, the present utility model provides a piston installation fixture, which includes a vertically arranged support plate 1. A horizontal support rod 2 is movably arranged on one side of the support plate 1. The support plate 1 is provided with a first driving assembly for driving the support rod 2 to move up and down. The support rod 2 is provided with a clamping assembly. The clamping assembly includes a support cylinder 3 which is vertically fixed at one end of the support rod 2 away from the support plate 1 and has both ends open. The bottom end of the support cylinder 3 is fixed with a vertically arranged fixed sleeve 4 with an open bottom. A vertically arranged movable sleeve 5 with an open bottom is movably arranged in the fixed sleeve 4. The inner wall of the fixed sleeve 4 is in contact with the outer wall of the movable sleeve 5. The outer wall of the movable sleeve 5 is an inclined structure with an increasing diameter from top to bottom. The movable sleeve 5 is an elastic member. A plurality of movable cavities 53 are formed on the side wall of the movable sleeve 5 and the side wall of the movable sleeve 5 is a movable structure. A second driving assembly for driving the movable sleeve 5 to move up and down in the fixed sleeve 4 is arranged in the support cylinder 3. A handle 6 is fixed on the side of the support plate 1 facing away from the clamping assembly. A support assembly is arranged at the bottom of the support plate 1.

[0018] As Figure 2As shown in the figure, a groove 54 is provided at the bottom end of the outer wall of the movable sleeve 5, and a limiting block 41 corresponding to the groove 54 is fixed at the bottom end of the inner wall of the fixed sleeve 4. Three arc-shaped protrusions 55 are fixedly arranged in parallel from bottom to top at the bottom end of the inner wall of the movable sleeve 5. When it is necessary to clamp and fix the piston, the head of the piston is placed inside the movable sleeve 5. Since three arc-shaped protrusions 55 are fixedly arranged in parallel from bottom to top at the bottom end of the inner wall of the movable sleeve 5, the three protrusions 55 are respectively aligned with the three piston rings of the piston head. Subsequently, the second driving component is used to drive the movable sleeve 5 to move upward, so that the inner wall of the fixed sleeve 4 presses the side wall of the movable sleeve 5, causing the side wall of the movable sleeve 5 to contract inward, thereby enabling the movable sleeve 5 to tighten and fix the head of the piston. At this time, the three protrusions 55 can be perfectly fitted with the corresponding piston rings, thus realizing the effective clamping and fixing of the piston. The arrangement of the groove 54 and the limiting block 41 can prevent the movable sleeve 5 from moving upward excessively, thereby playing a limiting role. Further, the inner wall of the fixed sleeve 4 can be set as an inclined structure that is wider at the top and narrower at the bottom to facilitate the upward movement of the movable sleeve 5 more easily.

[0019] As Figure 1 and Figure 3 shown in the figure, the first driving component includes a lead screw 7 that is rotatably connected inside the support plate 1 and is vertical. A motor 71 for driving the lead screw 7 to rotate around its own axis is provided at the top end of the support plate 1. A slider 72 fixed to the support rod 2 is sleeved on the lead screw 7, and a cavity 11 for the slider 72 to move is provided inside the support plate 1. Starting the motor 71, the output end of the motor 71 drives the lead screw 7 to rotate around its own axis, which can drive the slider 72 to move up and down along the lead screw 7 inside the cavity 11, thereby driving the clamping component to move up and down through the support rod 2.

[0020] As Figure 2 shown in the figure, the second driving component includes a connecting block 51 that is slidably connected inside the support cylinder 3 and is vertical. The bottom end of the connecting block 51 penetrates through the top end of the fixed sleeve 4 and is fixedly connected to the top end of the movable sleeve 5. An automatic push rod 52 with its output end fixedly connected to the top end of the connecting block 51 is vertically fixed inside the support cylinder 3. Starting the automatic push rod 52, the output end of the automatic push rod 52 drives the connecting block 51 to move up and down inside the support cylinder 3, which can control the movable sleeve 5 to move up and down inside the fixed sleeve 4, thereby realizing the contraction and rebound operations of the side wall of the movable sleeve 5. Further, the retractable distance of the automatic push rod 52 is less than the height of the connecting block 51 to prevent the connecting block 51 from moving downward excessively and sliding out of the support cylinder 3.

[0021] As Figure 1 , Figure 4 and Figure 5As shown in the figure, the support assembly includes a number of arc-shaped and horizontal support seats 8. The top surface of one of the support seats 8 is fixedly connected to the bottom surface of the support plate 1. An arc-shaped connecting member 81 is slidably connected between every two adjacent support seats 8. A number of support seats 8 and a number of connecting members 81 together form a ring, and the center of the ring coincides with the projection center of the movable sleeve 5 in the vertical direction. The end of the support rod 2 away from the support plate 1 is slidably connected to an adjusting rod 21 fixed to the support cylinder 3. A number of through holes 811 are evenly formed on the top surfaces of the adjusting rod 21 and the connecting member 81 respectively. The top surface of the support rod 2 and the two ends of the top surface of the support seat 8 are detachably connected with pins 82. The bottom ends of the pins 82 located on the support rod 2 and the support seat 8 respectively penetrate through the support rod 2 and the support seat 8 and extend into the corresponding through holes 811. When the piston is to be loaded into the engine cylinder block, the bottom surface of the support seat 8 can be made to contact the top surface of the cylinder block, thereby playing a supporting role for the entire device and reducing the workload of the operator. In addition, the relative positions of the pins 82 on a number of support seats 8 and the through holes 811 on the corresponding connecting members 81 can be adjusted simultaneously to adjust the size of the ring formed by a number of support seats 8, so as to adapt to cylinder blocks and pistons with different sizes of top openings. At the same time, the relative positions of the pins 82 on the support rod 2 and the through holes 811 on the adjusting rod 21 can also be adjusted, so that the piston can always be located at the center of the ring formed by a number of support seats 8 during use, making it easier to push the piston into the cylinder block.

[0022] As Figure 1 shown, rubber pads 83 are fixed to the bottoms of a number of the support seats 8. The rubber pads 83 can increase the friction between the support seats 8 and the cylinder block, preventing the piston from shifting when being loaded into the cylinder block and affecting the assembly accuracy and quality.

[0023] As Figure 1 shown, four concave pits 61 are provided on the inner side of the handle 6. When the operator holds the handle 6, the four fingers can just fit with the four concave pits 61, effectively improving the comfort of the operator during use and thus improving the assembly efficiency.

[0024] As Figure 1 shown, a power supply 12 and a control panel 13 are provided on the front surface of the support plate 1 facing away from the clamping assembly, and the control panel 13 is arranged close to the handle 6. The power supply 12 and the control panel 13 are electrically connected by wires. The power supply 12 is connected to the automatic push rod 52 and the motor 71 by wires. The power supply 12 and the control panel 13 respectively provide the conditions for the portable movement and unified control of the entire device, improving the convenience and comfort of the operator.

[0025] In use, the support rod 2 is positioned at the topmost position by means of the motor 71, and the connecting block 51 is pushed downward by the automatic push rod 52 to drive the movable sleeve 5 to move downward so that it is located outside the fixed sleeve 4. The operator holds the entire device by the handle 6, so that the movable sleeve 5 surrounds the head of the piston, and the three protrusions 55 are respectively aligned with the three piston rings on the head of the piston. Subsequently, the automatic push rod 52 is used to drive the movable sleeve 5 to move upward. Since the inner wall of the fixed sleeve 4 is an inclined structure with a decreasing diameter from top to bottom and the outer wall of the movable sleeve 5 has a matching inclined structure corresponding to the inner wall of the fixed sleeve 4, during the upward movement, the inwardly inclined inner wall of the fixed sleeve 4 will gradually squeeze the side wall of the outwardly inclined movable sleeve 5. And because a plurality of movable cavities 53 are provided on the side wall of the movable sleeve 5 and the side wall of the movable sleeve 5 is a movable structure, the side wall of the movable sleeve 5 can be made to contract inward, so that the movable sleeve 5 tightens and fixes the head of the piston; Subsequently, hold the handle 6 and move the entire device so that the bottom of the piston is aligned with the engine cylinder block to be assembled. At this time, the bottom surface of the support seat 8 is in contact with the top surface of the cylinder block, which can support the entire device to reduce the working burden of the operator. Then, the motor 71 is used to move the support rod 2 downward, which can drive the entire piston to move downward, so as to push the piston into the engine cylinder block; After the piston is pushed into the cylinder block, the automatic push rod 52 is used to drive the movable sleeve 5 to move downward. Since the movable sleeve 5 is an elastic member, the movable sleeve 5 will gradually rebound during the downward movement, so that the piston gradually disengages from the fixation of the movable sleeve 5, and thus the assembly operation of the piston can be realized.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A piston mounting fixture, comprising a vertically arranged support plate (1), characterized in that: A horizontal support rod (2) is movably provided on one side of the support plate (1); a first driving assembly for driving the support rod (2) to move up and down is provided on the support plate (1); a clamping assembly is provided on the support rod (2); the clamping assembly comprises a support tube (3) vertically fixed to one end of the support rod (2) away from the support plate (1) and open at both ends; a vertical fixed sleeve (4) with an open bottom surface is fixed at the bottom end of the support tube (3); a vertical movable sleeve (5) with an open bottom surface is movably provided in the fixed sleeve (4); and the fixed sleeve (4) is provided with a plurality of movable sleeves (6) with a plurality of movable sleeves (7) and a plurality of movable sleeves (8) having a plurality of movable sleeves (9) and a plurality of movable sleeves (10) and a plurality of movable sleeves (11) are provided in the fixed sleeve (4); ) is in contact with the outer wall of the movable sleeve (5), the outer wall of the movable sleeve (5) is an inclined structure with a diameter increasing from top to bottom, the movable sleeve (5) is an elastic member, a plurality of movable cavities (53) are provided on the side wall of the movable sleeve (5) and the side wall of the movable sleeve (5) is a movable structure, a second driving component for driving the movable sleeve (5) to move up and down in the fixed sleeve (4) is provided in the support tube (3), a handle (6) is fixed on the side of the support plate (1) away from the clamping component, and a support component is provided at the bottom of the support plate (1).

2. The piston mounting fixture according to claim 1, characterized in that: The bottom end of the outer wall of the movable sleeve (5) is provided with a groove (54), the bottom end of the inner wall of the fixed sleeve (4) is fixed with a limit block (41) corresponding to the groove (54), and the bottom end of the inner wall of the movable sleeve (5) is parallelly fixed with three arc-shaped protrusions (55) from bottom to top.

3. The piston mounting fixture according to claim 1, characterized in that: The first driving assembly comprises a vertical screw rod (7) rotatably connected in the support plate (1); a motor (71) for driving the screw rod (7) to rotate around its own axis is provided at the top end of the support plate (1); a slider (72) fixed to the support rod (2) is sleeved on the screw rod (7); and a cavity (11) for the slider (72) to move is provided in the support plate (1).

4. The piston mounting fixture according to claim 1, characterized in that: The second driving assembly comprises a vertical connecting block (51) slidably connected in the support tube (3); the bottom end of the connecting block (51) penetrates the top end of the fixed sleeve (4) and is fixedly connected to the top end of the movable sleeve (5); and an automatic push rod (52) is vertically fixed in the support tube (3) and the output end is fixed to the top end of the connecting block (51).

5. The piston mounting fixture according to claim 1, characterized in that: The support assembly comprises a plurality of arc-shaped and horizontal support seats (8), wherein the top surface of one of the support seats (8) is fixedly connected to the bottom surface of the support plate (1), and an arc-shaped connecting piece (81) is slidably connected between each two adjacent support seats (8), and the plurality of support seats (8) and the plurality of connecting pieces (81) together form a circular ring, and the center of the circular ring coincides with the projection center of the movable sleeve (5) in the vertical direction; an end of the support rod (2) away from the support plate (1) is slidably connected to an adjusting rod (21) fixed to the support tube (3); the top surfaces of the adjusting rod (21) and the connecting piece (81) are respectively and evenly provided with a plurality of through holes (811); the top surfaces of the support rod (2) and the support seat (8) are detachably connected with a latch (82) at both ends, and the bottom ends of the latch (82) located on the support rod (2) and the support seat (8) respectively penetrate the support rod (2) and the support seat (8) and extend into the corresponding through holes (811).

6. The piston mounting fixture according to claim 5, characterized in that: A rubber pad (83) is fixed to the bottom of each of the supporting seats (8).

7. The piston mounting fixture according to claim 1, characterized in that: Four recesses (61) are provided on the inner side of the handle (6).

8. The piston mounting fixture according to claim 3 or 4, characterized in that: A power source (12) and a control panel (13) are provided on the front side of the support plate (1) facing away from the clamping assembly, and the control panel (13) is arranged close to the handle (6). The power source (12) and the control panel (13) are electrically connected via a wire, and the power source (12) and the automatic push rod (52) and the motor (71) are all connected via wires.

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