Cylinder body fixing assistive device

Abstract

The utility model discloses a cylinder body fixing assistive device, which comprises a fixing assistive device body arranged on an operation table and used for fixing a cylinder body, and is characterized in that the fixing assistive device body comprises a positioning piece, a first fixing piece, an upper plate, a lower plate and a second fixing piece, one ends of the positioning pieces are respectively embedded into the grooves of the cylinder body, and the other ends of the positioning pieces are connected with the upper plate through the first fixing pieces; any end of the upper plate is provided with a threaded rod and a positioning rod symmetrically designed relative to the threaded rod, and a plurality of holes matched with the first fixing pieces for use are formed in the middle of the upper plate; one end of the lower plate and the upper plate are symmetrically provided with a fixing hole and a positioning hole for the threaded rod and the positioning rod to penetrate through, and the threaded rod penetrates through the fixing hole to be in threaded connection with the second fixing piece, so that the lower plate and the upper plate are connected into a whole. According to the design of the utility model, the cylinder body is effectively fixed, and the cylinder body is not damaged, so that an operator can independently complete the moment verification operation of the cylinder body.

Description

Technical Field

[0001] This utility model relates to the field of special tooling technology for assembling underwater vehicles, specifically designing a cylinder block fixing auxiliary tool. Technical Background

[0002] During the assembly of underwater vehicles, the assembly process for the cylinder liners within the engine's cylinder block requires that, after confirming the cylinder liners are properly installed, they be tightened with five screws and nuts. There are specific torque requirements for these screws: 12 ± 0.5 N•m. Inappropriate torque may cause air or water leaks, leading to reduced engine power output or poor heat dissipation. Furthermore, localized stress concentration may cause excessive localized stress on the cylinder block, resulting in cylinder block deformation, affecting the normal operation of pistons, valves, and other components, increasing wear on parts, and reducing engine reliability and lifespan. Therefore, it is essential to tighten the screws to the specified torque to reduce the incidence of failures and improve engine reliability and durability.

[0003] During torque verification, the cylinder block must be secured. However, due to the cylinder block's cylindrical shape, it is difficult to find a good stress point during operation. If the cylinder block is not secured during torque verification, uneven stress on the screws will occur, leading to air or water leaks or localized stress concentrations. Furthermore, during torque verification, the screws are positioned on the cylinder block's sealing surface. Since the entire cylinder block is made of aluminum with low hardness, if the torque verification tool comes loose due to uneven stress, it can easily damage the cylinder block's sealing surface, creating serious quality issues and affecting the overall assembly and adjustment quality of the engine.

[0004] Currently, the methods for securing the cylinder block are as follows: one method involves one operator wearing gloves gripping and securing the cylinder block by hand, while another operator checks the torque of the cylinder liner fastening bolts. Figure 1 As shown, this method requires strong hand strength from the operator and is prone to uneven force distribution, affecting the accuracy of torque verification. It can also easily damage the cylinder block sealing surface, posing a significant quality hazard. Another method uses a standard fixture for verifying cylinder block coaxiality to fix the cylinder block, but this fixture lacks a fixed mechanism and still requires the operator to wear gloves and grip it tightly, again resulting in uneven force distribution affecting the accuracy of torque verification. Therefore, developing a more practical and efficient cylinder block fixing fixture is key to solving the aforementioned technical problems. Utility Model Content

[0005] In view of the many defects and deficiencies in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a cylinder body fixing auxiliary tool. By setting an upper plate and a lower plate, the fixing auxiliary tool body is fixed on the operating table. The operating table is mechanically clamped and fixed by the second fixing member cooperating with the threaded rod, which effectively avoids the situation that the cylinder body cannot be fixed during the original operation.

[0006] Another objective of this invention is to fix the cylinder body by setting a positioning component that can be embedded in the groove of the cylinder body, and the working end of the positioning component is the same as the size of the groove of the cylinder body. By embedding the positioning component into the groove, damage to the cylinder body is prevented during the torque verification process.

[0007] Another objective of this invention is to prevent damage to the cylinder body during torque verification by setting a flexible protective sleeve on the positioning component.

[0008] To solve the above problems and achieve the objectives of the invention, this utility model provides a cylinder block fixing accessory by adopting the following design structure and the following technical solution:

[0009] A cylinder block fixing accessory includes a fixing accessory body (1) installed on an operating table (3) for fixing a cylinder block (2). The fixing accessory body (1) includes: a positioning member (11), a first fixing member (12), an upper plate (13), a lower plate (14), and a second fixing member (15).

[0010] The positioning parts (11) are several in number, and their positions correspond one-to-one with the grooves at the bottom of the cylinder body (2). One end of each part is embedded in the groove of the cylinder body (2), and the other end is connected to the upper plate (13) through the first fixing part (12).

[0011] The upper plate (13) has a threaded rod (131) at one end and a positioning rod (132) symmetrically designed relative to the threaded rod (131). The upper plate (13) has several holes in the middle that are used to cooperate with the first fixing member (12).

[0012] The lower plate (14) has a fixing hole (141) and a positioning hole (142) symmetrically provided at one end with the upper plate (13) for the threaded rod (131) and the positioning rod (132) to pass through; the threaded rod (131) passes through the fixing hole (141) and is threadedly connected to the second fixing member (15), so that the lower plate (14) and the upper plate (13) are connected as a whole.

[0013] Preferably, the positioning member (11) has an installation groove (111) at the connecting end, which provides a force point when connected with the first fixing member (12).

[0014] Preferably, one end of the upper plate (13) is provided with a first protrusion (133) perpendicular to the upper plate (13), and the threaded rod (131) and the positioning rod (132) are fixed on the first protrusion (133); the lower plate (14) is provided with a second protrusion (143) perpendicular to the lower plate (14) at a position symmetrical to the upper plate (13), and the positioning hole (142) and the fixing hole (141) are opened on the second protrusion (143);

[0015] The first protrusion (133) and the second protrusion (143) work together to engage the upper plate (13) and the lower plate (14) on the operating table (3).

[0016] Preferably, the positioning element (11) is a cylindrical structure, with the diameter of its operating end being the same as the inner diameter of the groove of the cylinder body (2), and the diameter of its connecting end being smaller than that of the operating end, forming a "stepped" structure.

[0017] Preferably, the second fastener (15) is a wing nut.

[0018] Preferably, the diameter of the threaded rod (131) is larger than the diameter of the positioning rod (132).

[0019] Preferably, the positioning element (11) further includes a protective sleeve (112) sleeved on one end of the positioning element (11), the protective sleeve (112) being made of soft material to prevent the positioning element (11) from deforming the groove of the cylinder body (2) during operation.

[0020] Preferably, the upper plate (13) and lower plate (14) are respectively provided with anti-slip pads at the contact surfaces with the operating table (3).

[0021] The working principle is as follows: Before using the cylinder block fixing fixture with the above-mentioned design structure, the fixture must first be assembled:

[0022] During assembly, the operator uses the first fixing piece (12) to pass through the upper plate (13) to fix the positioning piece (11) to the upper plate (13), and passes the threaded rod (131) and positioning rod (132) on the upper plate (13) through the fixing hole (141) and positioning hole (142) provided on the lower plate (14). Then, the second fixing piece (15) is screwed onto the threaded rod (131), and the utility model is installed on the operating table (3) by rotating the second fixing piece (15). The assembly of the utility model is thus completed.

[0023] When in use, the operator puts one end of the groove of the cylinder body (2) onto the positioning part (11) to fix the cylinder body (2), then installs the cylinder liner onto the cylinder body (2) and fixes it with screws. Then, the torque wrench (4) is used to check the screws in turn to ensure that the torque of the screws meets 12±0.5N·m.

[0024] During the torque verification process, the operator uses a torque wrench (4) to tighten the screws. At this time, because the upper plate (13) and the lower plate (14) clamp the operating table (3), the positioning part (11) is fixed relative to the operating table. When the positioning part (11) is connected to the cylinder body (2), the cylinder body (2) is also fixed relative to the operating table. The operator completes the torque verification work by himself.

[0025] Finally, after all the work is completed, the operator loosens the second fastener (15), removes the main body (1) of the fixing auxiliary tool from the operating table (3), and stores it in a fixed position for the next use.

[0026] In summary, the beneficial effects of this utility model compared with the prior art are as follows:

[0027] 1. This utility model fixes the cylinder body by setting several positioning parts to be embedded in the groove of the cylinder body. By connecting with the original groove structure of the cylinder body, it ensures that the cylinder body will not be damaged during the fixing process.

[0028] 2. By setting the first protrusion and the second protrusion, this utility model acts as a reinforcing rib, ensuring a more secure connection between the threaded rod and the positioning rod, making the clamping process of the operating table more secure and tighter, and the protrusion structure fits into the side wall of the operating table, achieving a better limiting and fixing effect.

[0029] 3. The positioning component of this utility model has an installation groove at the connecting end. Due to the characteristic that its cylindrical structure is difficult to bear force, the installation groove makes it convenient for operators to use tools to fix the positioning component, making the fixation between the positioning component and the upper plate more secure and avoiding damage to the cylinder body caused by the loosening of the positioning component during the torque verification process.

[0030] 4. The positioning rods designed symmetrically to the threaded rods are provided in this utility model to ensure that the overall structure is horizontal relative to the operating table during the clamping process of the upper and lower plates, thus preventing the skew from affecting the torque verification operation.

[0031] 5. The second fixing component of this utility model is a wing nut, which makes it convenient for operators to tighten or loosen. Attached Figure Description

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0033] Figure 1 A schematic diagram showing the usage status of the standard assistive device (5);

[0034] Figure 2 This is one of the schematic diagrams showing the usage state of this utility model;

[0035] Figure 3This is the second diagram showing the usage state of this utility model;

[0036] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 5 This is a side view of the present invention;

[0038] Figure 6 This is a schematic diagram of the overall exploded structure of this utility model;

[0039] Figure 7 This is a schematic diagram of the anti-slip mat structure of this utility model;

[0040] Figure 8 This is a schematic diagram showing the connection relationship between the positioning component (11) and the protective sleeve (12) of this utility model;

[0041] In the figure, the numbers are as follows: 1—fixed auxiliary body, 11—positioning component, 12—first fixing component, 13—upper plate, 14—lower plate, 15—second fixing component, 111—mounting groove, 112—protective sleeve, 131—threaded rod, 132—positioning rod, 133—first protrusion, 141—fixing hole, 142—positioning hole, 143—second protrusion;

[0042] 2—Cylinder block;

[0043] 3—Control panel;

[0044] 4—Torque wrench;

[0045] 5—Standardized assistive devices. Detailed Implementation

[0046] To make the technical means, inventive features, and achieved objectives and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] Example 1

[0048] like Figures 1 to 8 The cylinder block fixing accessory shown includes a fixing accessory body 1 installed on the operating table 3 for fixing the cylinder block 2. The fixing accessory body 1 includes: a positioning member 11, a first fixing member 12, an upper plate 13, a lower plate 14, and a second fixing member 15.

[0049] Positioning element 11, there are several positioning elements 11, and their positions correspond one-to-one with the groove positions at the bottom of the cylinder body 2, so that one end can be embedded into the groove of the cylinder body 2 respectively, and the other end is connected to the upper plate 13 through the first fixing element 12.

[0050] In this utility model, such as Figure 3 As shown, the number of positioning parts 11 is the same as the number of grooves in the cylinder body 2, and they are symmetrically arranged with the grooves in the cylinder body 2. The cylinder body 2 is fixed by being embedded in the grooves.

[0051] The upper plate 13 has a threaded rod 131 and a positioning rod 132 symmetrically designed relative to the threaded rod 131 at either end. The upper plate 13 has several holes in the middle that are used to cooperate with the first fixing member 12.

[0052] The lower plate 14 has a fixing hole 141 and a positioning hole 142 symmetrically provided at one end with the upper plate 13, through which the threaded rod 131 and the positioning rod 132 pass; the threaded rod 131 passes through the fixing hole 141 and is threadedly connected to the second fixing member 15, so that the lower plate 14 and the upper plate 13 are connected as a whole.

[0053] Before using the cylinder block fixing fixture with the above-mentioned design structure, the fixture must first be assembled:

[0054] During assembly, such as Figure 7 As shown, the operator passes the first fixing member 12 through the hole in the middle of the upper plate 13 and connects it to the positioning member 11, fixing the positioning member 11 onto the upper plate 13. Then, the threaded rod 131 and the positioning rod 132 at one end of the upper plate 13 are simultaneously passed through the fixing hole 141 and the positioning hole 142 on the lower plate 14, and the second fixing member 15 is used to connect it to the threaded rod 131. Finally, by twisting the second fixing member 15, the distance between the upper plate 13 and the lower plate 14 is reduced, clamping them onto the operating table 3, thus completing the assembly of this utility model.

[0055] When using, such as Figure 3 As shown, the operator places one end of the groove of the cylinder body 2 onto the positioning part 11 to fix the cylinder body 2. Then, the cylinder liner is placed on the end face of the cylinder body 2 and fixed with screws. Then, the torque wrench 4 is used to fix and verify the screws in sequence to ensure that the torque of the screws meets 12±0.5N·m.

[0056] During the torque verification process, such as Figure 2 As shown, the operator uses torque wrench 4 to tighten the screw. At this time, because the operating table 3 is clamped between the upper plate 13 and the lower plate 14, the positioning part 11 is fixed relative to the operating table. When the positioning part 11 is connected to the cylinder body 2, the cylinder body 2 is also fixed relative to the operating table. The operator can complete the torque verification work by himself.

[0057] Finally, after all the work is completed, the operator loosens the second fastener 15, removes the main body 1 of the fixing auxiliary tool from the operating table 3, and stores it in a fixed position for future use.

[0058] Example 2

[0059] Furthermore, the positioning member 11 has a mounting groove 111 at its connecting end, which provides a force point when connected to the first fixing member 12.

[0060] In this utility model, such as Figure 5 As shown, the cylindrical design of the positioning component 11 makes it inconvenient to bear force during installation. The design of the mounting groove 11 allows the operator to fix the positioning component 11 with tools and tighten the first fixing component 12 to make the connection between the positioning component 11 and the upper plate 13 more secure.

[0061] Furthermore, one end of the upper plate 13 is provided with a first protrusion 133 perpendicular to the upper plate 13, and the threaded rod 131 and the positioning rod 132 are fixed on the first protrusion 133; the lower plate 14 is provided with a second protrusion 143 perpendicular to the upper plate 13 at a position symmetrical to the upper plate 13, and the positioning hole 142 and the fixing hole 141 are opened on the second protrusion 143.

[0062] The first protrusion 133 and the second protrusion 143 work together to engage the upper plate 13 and the lower plate 14 on the operating table 3.

[0063] In this utility model, such as Figure 5 As shown, the first protrusion 133 and the second protrusion 143 serve as reinforcing ribs. When the upper plate 13 and the lower plate 14 are connected, the clamping process of the operating table is more secure and tighter. Furthermore, the protruding structure fits against the side wall of the operating table, providing a better limiting and fixing effect.

[0064] Furthermore, the positioning element 11 has a cylindrical structure, with the diameter of its operating end being the same as the inner diameter of the groove in the cylinder body 2, and the diameter of its connecting end being smaller than that of the operating end, forming a "stepped" structure.

[0065] Furthermore, the second fastener 15 is a wing nut.

[0066] In this utility model, by designing the second fixing member 15 as a wing nut, the operator can directly loosen or tighten the second fixing member 15 by hand, which is convenient for operation.

[0067] Furthermore, the diameter of the threaded rod 131 is larger than the diameter of the positioning rod 132.

[0068] In this invention, the positioning rod 132 is used for limiting, and the threaded rod 131 is used for connection and fixation. The larger diameter ensures a more stable connection process.

[0069] Example 3

[0070] This embodiment 3 is the same as embodiments 1 and 2, except that the positioning member 11 is also provided with a protective sleeve 112, which is made of a soft material, such as... Figure 8 As shown, during the torque verification process, the buffer provided by the protective sleeve 112 effectively prevents the positioning part 11 from damaging the groove of the cylinder body 2 during operation.

[0071] Furthermore, the positioning component 11 also includes a protective sleeve 112 sleeved on one end of the positioning component 11. The protective sleeve 112 is made of soft material to prevent the positioning component 11 from deforming the groove of the cylinder body 2 during operation.

[0072] Furthermore, anti-slip pads are provided at the contact surfaces of the upper plate 13 and the lower plate 14 with the operating table 3.

[0073] In this utility model, such as Figure 4 As shown, by setting anti-slip pads between the upper plate 13 and the lower plate 14 respectively, the friction between them and the operating table 3 is increased. During the torque verification process, the fixed auxiliary body 1 will not slide on the operating table 3, thus affecting the operation and causing adverse effects.

[0074] In summary, a more specific embodiment of this utility model is as follows:

[0075] like Figure 4 As shown, a cylinder block fixing accessory includes a positioning component 11, a first fixing component 12, an upper plate 13, a lower plate 14, and a second fixing component 15.

[0076] Before use, such as Figure 6 As shown, the operator passes the first fixing member 12 through the hole in the middle of the upper plate 13 and connects it to the positioning member 11. Using a tool, the operator secures the positioning member 11 to the mounting slot 111 and tightens the first fixing member 12 to fix the positioning member 11 onto the upper plate 13. Then, the threaded rod 131 and the positioning rod 132 at one end of the upper plate 13 are simultaneously passed through the fixing hole 141 and the positioning hole 142 on the lower plate 14, and the second fixing member 15 is used to connect to the threaded rod 131. Finally, by tightening the second fixing member 15, the distance between the upper plate 13 and the lower plate 14 is reduced, and the plate is clamped onto the operating table 3, thus completing the assembly of this utility model.

[0077] In use, the operator places one end of the groove of the cylinder body 2 onto the positioning part 11, adjusts it to be flat, and then completes the fixation of the cylinder body 2. Figure 2 As shown, the cylinder liner is then placed on the end face of the cylinder block 2 and fixed with screws. Then, a torque wrench 4 is used to fix and verify the screws in sequence to ensure that the torque of the screws meets 12±0.5N·m.

[0078] During the torque verification process, the operator uses torque wrench 4 to tighten the screws. At this time, because the operating table 3 is clamped between the upper plate 13 and the lower plate 14, the positioning part 11 is fixed relative to the operating table. When the positioning part 11 is connected to the cylinder body 2, the cylinder body 2 is also fixed relative to the operating table. The operator completes the torque verification work by himself.

[0079] Finally, after all the work is completed, the operator loosens the second fastener 15, removes the main body 1 of the fixing auxiliary tool from the operating table 3, and stores it in a fixed position for future use.

[0080] In this utility model, the connection is either a fixed connection or a detachable connection. The fixed connection is either a welded connection or a directly machined integral structure, while the detachable connection is either an internal or external threaded connection, a snap-fit ​​connection, or a plug-in structure connection.

[0081] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A cylinder block fixing aid comprising a fixing aid body (1) mounted on an operating table (3) for fixing a cylinder block (2), characterized in that, The fixed auxiliary tool body (1) comprises a positioning member (11), a first fixing member (12), an upper plate (13), a lower plate (14) and a second fixing member (15). The positioning member (11) is in one-to-one correspondence with the groove position of the bottom of the cylinder block (2) and can be embedded into the groove of the cylinder block (2) at one end and connected with the upper plate (13) through the first fixing member (12) at the other end. The upper plate (13) is provided with a threaded rod (131) and a positioning rod (132) symmetrically designed opposite to the threaded rod (131) at any end, and a plurality of holes for cooperating with the first fixing member (12) are formed in the middle of the upper plate (13). The lower plate (14) is provided with a fixing hole (141) and a positioning hole (142) at one end symmetrically with the upper plate (13) for the threaded rod (131) and the positioning rod (132) to pass through; the threaded rod (131) is threadedly connected with the second fixing member (15) through the fixing hole (141), so that the lower plate (14) and the upper plate (13) are connected as a whole.

2. The cylinder block immobilization aid of claim 1, wherein The connecting end of the positioning member (11) is provided with a mounting groove (111) to provide a stress point when connected with the first fixing member (12).

3. The cylinder block immobilization aid of claim 1, wherein The upper plate (13) is provided with a first protrusion (133) perpendicular to the upper plate (13) at one end, and the threaded rod (131) and the positioning rod (132) are fixed on the first protrusion (133); the lower plate (14) is provided with a second protrusion (143) perpendicular to the lower plate (14) at a position symmetrically with the upper plate (13), and the positioning hole (142) and the fixing hole (141) are formed on the second protrusion (143); The first protrusion (133) and the second protrusion (143) are used in cooperation to make the upper plate (13) and the lower plate (14) clamped on the operation table (3).

4. The cylinder block immobilization aid of claim 2, wherein The positioning member (11) is in a cylindrical structure, the diameter of the operating end is the same as the inner diameter of the groove of the cylinder block (2), and the diameter of the connecting end is smaller than that of the operating end, forming a "stepped" structure.

5. The cylinder block immobilization aid of claim 1, wherein The second fixing member (15) is a butterfly nut.

6. The cylinder block immobilization aid of claim 3, wherein The diameter of the threaded rod (131) is larger than that of the positioning rod (132).

7. The cylinder block immobilization aid of claim 1, wherein The positioning member (11) further comprises a protective sleeve (112) sleeved on one end of the positioning member (11), and the protective sleeve (112) is made of soft material to prevent the positioning member (11) from deforming the groove of the cylinder block (2) during operation.

8. The cylinder block immobilization aid of claim 1, wherein: The upper plate (13) and the lower plate (14) are further respectively provided with anti-skid pads at the contact surfaces with the operation table (3).

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