A pitch control device for assembling tooling of a marine diesel engine

Abstract

This invention discloses a pitch-changing device for a marine diesel engine assembly fixture in the field of diesel engine assembly equipment technology. It includes: a base with a guide rail on the base, an assembly fixture slidably mounted on the guide rail, and protective covers on both sides of the assembly fixture. These protective covers cover the guide rail from both ends to isolate it from the outside environment. Each protective cover is a telescopic cover, with its side away from the assembly fixture connected to the base. The telescopic cover contains a cleaning component for cleaning and lubricating the guide rail. In this application, the protective covers isolate the guide rail from the outside environment, reducing the likelihood of obstruction to the assembly fixture's movement on the guide rail. Furthermore, the cleaning component cleans and lubricates the guide rail, ensuring the normal operation of the pitch-changing device and extending its service life.

Description

Technical Field

[0001] This invention relates to the field of diesel engine assembly equipment technology, specifically a pitch converter for marine diesel engine assembly tooling. Background Technology

[0002] With the development of production, diesel engine assembly is gradually being carried out using assembly fixtures. During the assembly process, in order to adapt to the installation requirements of diesel engines of different specifications, it is necessary to adjust the position of the assembly fixtures so that the distance between the assembly fixtures and the diesel engines can be changed. The existing method of adjusting the distance of the assembly fixtures is generally to install the assembly fixtures on the guide rails of the pitch converter, and change the position of the assembly fixtures by moving the assembly fixtures on the guide rails. However, the existing guide rails are generally directly exposed to the outside environment, and the surface of the guide rails is easily contaminated with dust or other impurities, which will affect the movement of the assembly fixtures and the pitch adjustment. Summary of the Invention

[0003] The purpose of this invention is to provide a pitch-changing device for marine diesel engine assembly tooling, in order to solve the problem mentioned in the background art that the existing guide rails are generally directly exposed to the outside world, and the surface of the guide rails is easily contaminated with dust or other impurities, which affects the movement of the assembly tooling.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pitch-changing device for a marine diesel engine assembly fixture, comprising: a base, a guide rail on the base, an assembly fixture slidably mounted on the guide rail, and protective covers on both sides of the assembly fixture, the protective covers on both sides covering the guide rail from both ends to isolate the guide rail from the outside.

[0005] The protective cover is a telescopic cover, and the side of the telescopic cover away from the assembly fixture is connected to the base. The telescopic cover is equipped with a cleaning component for cleaning and lubricating the guide rail.

[0006] Preferably, the base has two sliding grooves located on both sides of the guide rail and parallel to the guide rail, and the telescopic cover has several sets of sliders that are slidably inserted into the sliding grooves at intervals.

[0007] Preferably, the telescopic cover includes a mounting component installed on the side wall of the assembly fixture, and the side of the mounting component away from the assembly fixture is detachably connected to the cover body, and the cleaning component is installed on the mounting component.

[0008] Preferably, the cleaning assembly includes a mounting bracket mounted on a mounting piece. The inner side wall of the mounting bracket is provided with a scraper, an oil spray head, and a scraping component. The scraper, oil spray head, and scraping component are arranged sequentially along the length of the guide rail. The oil spray head is located between the scraper and the scraping component. The scraping component is close to the assembly fixture, and the scraper is away from the assembly fixture.

[0009] Preferably, the scraper is slidably mounted on the mounting bracket, the direction of movement of the scraper is perpendicular to the length extension direction of the guide rail, and an elastic element is provided between the scraper and the mounting bracket to drive the scraper to fit tightly against the guide rail.

[0010] Preferably, the scraper includes a mounting plate slidably mounted on a mounting bracket. A moving block with the same moving direction as the assembly tool is slidably provided on the side of the mounting plate away from the assembly tool, and a support spring connected to the moving block. A movable plate is provided on the outer end of the moving block. A touch switch is provided on the mounting plate in the moving path of the moving block, and the touch switch is connected to an external warning device.

[0011] Preferably, the scraper slides on the mounting frame, the scraper moves in the same direction as the scraper, and the mounting frame is provided with a telescopic component for driving the scraper to move.

[0012] Preferably, the telescopic component is an electric telescopic rod.

[0013] Preferably, the telescopic component is an elastic telescopic rod, the mounting frame is provided with a connector, the connector is provided with a roller for fitting against the outer wall of the guide rail, the outer circumference of the roller is hinged with a number of arc-shaped plates and elastic elements connected to the arc-shaped plates, the connector is rotatably provided with a rotating rod and a torsion spring connected to the rotating rod, the axis of the rotating rod is parallel to the axis of the roller, the rotating rod is wound with a connecting rope for connecting to the moving end of the elastic telescopic rod, and the outer circumference of the rotating rod is provided with an arc-shaped stop block located on the moving path of the arc-shaped plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: in this application, the guide rail is covered by a protective cover, which isolates the guide rail from the outside world and ensures that the probability of the assembly tooling being obstructed on the guide rail is reduced; and the cleaning component is used to clean and lubricate the guide rail, ensuring the normal operation of the pitch converter and extending the service life of the pitch converter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pitch-changing device of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure between the assembly tooling and the guide rail of the present invention;

[0017] Figure 3 This is an enlarged schematic diagram of the structure at point A in this invention;

[0018] Figure 4 This is a cross-sectional view of the cleaning component of the present invention;

[0019] Figure 5 This is an enlarged schematic diagram of the structure at point B in this invention;

[0020] Figure 6 This is a schematic diagram of the connection structure between the connector and the roller of the present invention.

[0021] In the diagram: 1. Base; 2. Assembly fixture; 3. Protective cover; 31. Cover body; 32. Mounting component; 4. Guide rail; 5. Cleaning assembly; 51. Mounting bracket; 52. Scraper; 521. Mounting plate; 522. Movable plate; 523. Touch switch; 53. Oil injector; 54. Scraping component; 55. Elastic component; 56. Telescopic component; 57. Connecting component; 58. Roller; 59. Rotating rod; 510. Arc-shaped stop; 511. Arc-shaped plate; 512. Elastic element; 6. Slide groove. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] Please see Figure 1 and Figure 2 A pitch-changing device for assembling a marine diesel engine includes: a base 1, a guide rail 4 mounted on the top of the base 1, and an assembly fixture 2 (which may be a robotic arm or other equipment for assembling diesel engines) slidably mounted on the guide rail 4, the assembly fixture 2 being able to slide along the guide rail 4.

[0025] It should be noted that, in order to make the assembly fixture 2 move more conveniently, a driving component (such as an electric telescopic rod, a hydraulic telescopic rod, etc.) can be installed on the base 1 to drive the assembly fixture 2 to move on the guide rail 4.

[0026] Please see Figure 1 and Figure 2 The assembly fixture 2 is equipped with protective covers 3 on both sides. The two protective covers 3 are located on the left and right sides of the assembly fixture 2. The protective covers 3 cover the guide rail 4 from both ends of the guide rail 4 to isolate the guide rail 4 from the outside world, so that dust or other impurities from the outside world will not fall directly onto the guide rail, and the assembly fixture 2 will not be affected when changing pitch.

[0027] Please see Figure 1 and Figure 2 The protective cover 3 is a telescopic cover, and the side of the telescopic cover away from the assembly fixture 2 is connected to the base 1. During the movement of the assembly fixture 2, the protective covers 3 on both sides can be extended and retracted without moving or changing their own position, so as to avoid the protective cover 3 occupying other space.

[0028] It should be noted that the telescopic cover can be a telescopic corrugated tube (one side of the corrugated tube is open to ensure that the guide rail 4 can be covered when the corrugated tube is laid down), and the corrugated tube can be made of metal or plastic.

[0029] Please see Figure 3 The telescopic cover is equipped with a cleaning component 5, which is used to clean the guide rail 4 and lubricate the guide rail 4 to ensure that the assembly fixture 2 slides normally on the guide rail 4, reduce the wear on the connection area between the guide rail 4 and the assembly fixture 2, and extend the service life of the pitch converter.

[0030] In this embodiment, as a further optimization, please refer to... Figure 3 The base 1 has two sets of sliding grooves 6, which are located on both sides of the guide rail 4 and are parallel to the guide rail 4. The telescopic cover has several sets of sliders at intervals, and the sliders are inserted into the sliding grooves 6. During the extension and retraction of the protective cover 3, the sliders slide in the sliding grooves 6 to guide the extension and retraction of the protective cover 3, so that there is no large gap between the protective cover 3 and the base 1, thus ensuring the protective function of the protective cover 3 on the guide rail 4.

[0031] In this embodiment, as a further optimization, please refer to... Figure 3 The telescopic cover includes a cover body 31 (referring to a telescopic cover) and a mounting component 32. The mounting component 32 is mounted on the side wall of the assembly fixture 2. The side of the mounting component 32 away from the assembly fixture 2 is detachably connected to the cover body 31 (by bolts or other detachable connection methods). The cleaning component 5 is mounted on the mounting component 32. By disconnecting the connection between the cover body 31 and the mounting component 32 and moving the cover body 31 to retract it, the guide rail 4 can be exposed.

[0032] It should be noted that the cover 31 and the base 1 are also detachably connected (by bolts or other detachable connection methods), so that the cover 31 can be removed from the base 1; and the mounting part 32 and the assembly fixture 2 are also detachably connected, so that the mounting part 32 can be removed from the assembly fixture 2.

[0033] In this embodiment, as a further optimization, please refer to... Figure 4The cleaning component 5 includes a mounting bracket 51 mounted on the mounting part 32. The mounting bracket 51 is U-shaped and covers the outside of the guide rail 4. The inner side wall of the mounting bracket 51 is provided with a scraper 52, an oil nozzle 53, and a scraping component 54 (the inner side wall refers to the front inner wall, rear inner wall, and top inner wall of the mounting bracket 51). The scraper 52, the oil nozzle 53, and the scraping component 54 are arranged sequentially along the length of the guide rail 4. The oil nozzle 53 is located between the scraper 52 and the scraping component 54. The scraping component 54 is close to the assembly fixture 2, and the scraper 52 is far away from the assembly fixture 2. In addition, an oil tank (containing lubricating oil) is installed on the mounting bracket 51. In addition to the built-in delivery pump in the oil tank, the outlet of the delivery pump is connected to the oil nozzle 53.

[0034] Working principle: When the assembly fixture 2 moves, the mounting bracket 51 slides on the outside of the guide rail 4, causing the scraper 52 to scrape on the guide rail 4. At the same time, the delivery pump works to spray the lubricating oil in the oil tank onto the guide rail 4 through the oil spray head 53. Then, when the scraper 54 moves on the guide rail 4, it scrapes the lubricating oil evenly, ensuring that the assembly fixture 2 moves normally on the guide rail 4. Alternatively, during the movement of the assembly fixture 2, the scraper 54 can first scrape on the guide rail 4 to clean it. Then, the oil spray head 53 sprays the lubricating oil onto the cleaned guide rail 4, and finally, the scraper 52 scrapes the lubricating oil evenly on the surface of the guide rail 4.

[0035] It should be noted that the scraping component 54 refers to a brush or sponge block.

[0036] In this embodiment, as a further optimization, please refer to... Figure 5 The scraper 52 is slidably mounted on the mounting bracket 51. The direction of movement of the scraper 52 is perpendicular to the length extension direction of the guide rail 4. The scraper 52 can move close to the guide rail 4. An elastic element 55 (such as a spring) is provided between the scraper 52 and the mounting bracket 51. The elastic force provided by the elastic element 55 makes the scraper 52 move to fit closely to the guide rail 4.

[0037] In this embodiment, as a further optimization, please refer to... Figure 5The scraper 52 includes a mounting plate 521 slidably mounted on the mounting bracket 51 (the mounting plate 521 is connected to the elastic element 55). A mounting groove is provided on the side of the mounting plate 521 away from the assembly fixture 2. A movable block is slidably inserted into the mounting groove. A support spring is installed between the movable block and the mounting groove. The moving direction of the movable block is the same as the moving direction of the assembly fixture 2. A movable plate 522 is provided on the outer end of the movable block. A touch switch 523 is installed in the mounting groove, and the touch switch 523 is located on the moving path of the movable block. An external warning device (audible and visual alarm) is installed on the mounting bracket 51. The touch switch 523, the external alarm, and the power supply (the power supply refers to the battery) are connected in series. When there is a protrusion on the guide rail 4 (and the protrusion cannot be scraped off), the movable plate 522 is restricted by the protrusion and moves closer to the mounting plate 521 (the movable plate 522 cannot move due to the restriction of the protrusion, while the mounting bracket 51 continues to move with the mounting plate 521, which will reduce the distance between the mounting plate 521 and the movable plate 522). This causes the movable block to press the touch switch 523, which causes the external alarm to sound an alarm to remind the staff and facilitate timely handling of the guide rail 4 to avoid damage to the pitch changer.

[0038] It should be noted that the touch switch 523 is also connected to a driving component. After the touch switch 523 is pressed by the moving block, the driving component stops working.

[0039] In this embodiment, as a further optimization, please refer to... Figure 5 The scraper 54 slides on the mounting frame 51. The direction of movement of the scraper 54 is the same as the direction of movement of the scraper 52. A telescopic component 56 is installed between the mounting frame 51 and the scraper 54.

[0040] The telescopic component 56 consists of two sets, as detailed below:

[0041] For the first option, please refer to [link / reference]. Figure 5 Telescopic component 56 can be an electrically operated telescopic rod; it moves to the left in assembly fixture 2 (according to...). Figure 2 (as shown in the direction), at this time, the telescopic parts 56 on both the left and right sides are not working; when the assembly fixture 2 moves to the right (according to...) Figure 2As shown in the diagram, at this time, both telescopic members 56 on both sides are working, driving the scraper 54 to move downwards. When the scraper 54 begins to move in one direction (e.g., to the left), the scraper 54 is squeezed by the guide rail 4 and bends in the opposite direction of movement, which increases the distance between the scraper 54 and the guide rail 4, causing the scraper 54's effect to gradually decrease. When the scraper 54 moves in another direction (to the right), the telescopic member 56 carries the scraper 54 downwards, allowing the scraper 54 to fully contact the guide rail 4, and also applies a force to the bent part of the scraper 54, reducing the bending amplitude of the scraper 54 and extending the service life of the scraper 54. When the scraper 54 moves to the left, the telescopic member 56 carries the scraper 54 upwards, and so on, repeating the operation.

[0042] The second option, please refer to Figure 5 and Figure 6 The telescopic component 56 is an elastic telescopic rod (including a telescopic main rod and a telescopic secondary rod that slides into the inner cavity of the telescopic main rod, with a spring installed between the telescopic main rod and the telescopic secondary rod); the mounting frame 51 is provided with a connector 57, and the connector 57 is provided with a roller 58. The roller 58 is in contact with the outer wall of the guide rail 4. Several sets of arc plates 511 are hinged on the outer circumference of the roller 58. An elastic element 512 (spring) is installed between the roller 58 and the arc plate 511. A rotating rod 59 is rotatably provided on the connector 57. A torsion spring is installed between the connector 57 and the rotating rod 59. The axis of the rotating rod 59 is parallel to the axis of the roller 58. A connecting rope is wound on the rotating rod 59. The end of the connecting rope away from the rotating rod 59 is connected to the telescopic secondary rod. An arc-shaped stop 510 is provided on the outer circumference of the rotating rod 59. The arc-shaped stop 510 is located on the moving path of the arc plate 511.

[0043] The working principle of telescopic component 56 at this time is that when assembly fixture 2 moves to the left (according to...) Figure 2 As shown in the direction, roller 58 rolls on guide rail 4 (roller 58 rotates counterclockwise), causing arc plate 511 to contact arc stop 510 (the arc surface of arc plate 511 contacts arc stop 510). Arc stop 510 applies pressure to arc plate 511, causing it to rotate and move closer to roller 58 (elastic element 512 will be compressed), reducing the distance between arc plate 511 and roller 58. This allows roller 58 to continue rotating and carry arc plate 511 past arc stop 510. At this time, rotating rod 59 does not rotate, so that the telescopic parts 56 on the left and right sides do not work. When assembly fixture 2 moves to the right (according to...), Figure 2As shown), the roller 58 rotates in the opposite direction (clockwise), causing the arc plate 511 to contact the arc stop 510 (the contact area between the arc plate 511 and the arc stop 510 is not an arc surface). This causes the rotating rod 59 to rotate, releasing the connecting rope wrapped around the outer wall of the rotating rod 59. This causes the tension on the telescopic rod to disappear (due to the loosening of the connecting rope). Under the action of the spring, the telescopic rod moves, driving the scraper 54 to move downward. When the scraper 54 begins to move in one direction (such as to the left), the scraper 54 is squeezed by the guide rail 4 and will bend in the opposite direction of movement. When the scraper 54 bends, the gap between the scraper 54 and the guide rail 4 increases, causing the scraper 54 to gradually lose its function. When the scraper 54 moves in the other direction (to the right), the telescopic member 56 moves the scraper 54 downward, allowing the scraper 54 to fully contact the guide rail 4. It also applies a force to the bent part of the scraper 54, reducing the bending amplitude of the scraper 54 and extending its service life. When the scraper 54 moves to the left, the roller 58 rotates counterclockwise, and the torsion spring rotates the rotating rod 59 to reset, thus resetting the elastic telescopic rod.

[0044] It should be noted that there is only one set of components, such as connector 57 and roller 58, used to control the elastic telescopic rod, which is installed inside the left protective cover 3.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pitch control device for assembling tooling of a marine diesel engine, comprising: A base (1) is provided with a guide rail (4) and an assembly fixture (2) is slidably provided on the guide rail (4). The assembly fixture (2) is characterized in that: a protective cover (3) is provided on both sides of the assembly fixture (2), and the protective cover (3) on both sides covers the guide rail (4) from both ends of the guide rail (4) to isolate the guide rail (4) from the outside. The protective cover (3) is a telescopic cover. The side of the telescopic cover away from the assembly fixture (2) is connected to the base (1). The telescopic cover is provided with a cleaning component (5) for cleaning the guide rail (4) and lubricating it. The telescopic cover includes a mounting component (32) installed on the side wall of the assembly fixture (2), and a cover body (31) is detachably connected to the side of the mounting component (32) away from the assembly fixture (2). The cleaning component (5) is installed on the mounting component (32). The cleaning assembly (5) includes a mounting bracket (51) mounted on a mounting component (32). The inner side wall of the mounting bracket (51) is provided with a scraper (52), an oil nozzle (53), and a scraping component (54). The scraper (52), the oil nozzle (53), and the scraping component (54) are arranged sequentially along the length of the guide rail (4). The oil nozzle (53) is located between the scraper (52) and the scraping component (54). The scraping component (54) is close to the assembly fixture (2), and the scraper (52) is away from the assembly fixture (2). The scraper (52) is slidably mounted on the mounting bracket (51). The direction of movement of the scraper (52) is perpendicular to the length extension direction of the guide rail (4). An elastic element (55) is provided between the scraper (52) and the mounting bracket (51) to drive the scraper (52) to stick to the guide rail (4). The scraper (52) includes a mounting plate (521) slidably mounted on the mounting bracket (51). The mounting plate (521) is slidably provided with a moving block in the same direction of movement as the assembly fixture (2) and a support spring connected to the moving block on the side away from the assembly fixture (2). A movable plate (522) is provided on the outer end of the moving block. A touch switch (523) is provided on the mounting plate (521) in the moving path of the moving block. The touch switch (523) is connected to an external warning device.

2. The pitch-changing device for marine diesel engine assembly tooling according to claim 1, characterized in that: The base (1) has two grooves (6) that are located on both sides of the guide rail (4) and parallel to the guide rail (4). The telescopic cover has several sets of sliders that are slidably inserted into the grooves (6) at intervals.

3. The pitch-changing device for assembling tooling of a marine diesel engine according to claim 1, characterized in that: The scraper (54) slides on the mounting frame (51), and the direction of movement of the scraper (54) is the same as the direction of movement of the scraper (52). The mounting frame (51) is provided with a telescopic member (56) for driving the scraper (54) to move.

4. A pitch-changing device for assembling tooling of a marine diesel engine according to claim 3, characterized in that: The telescopic component (56) is an electric telescopic rod.

5. A pitch-changing device for assembling tooling of a marine diesel engine according to claim 3, characterized in that: The telescopic component (56) is an elastic telescopic rod. The mounting frame (51) is provided with a connector (57). The connector (57) is provided with a roller (58) for fitting against the outer wall of the guide rail (4). Several sets of arc plates (511) and elastic elements (512) connected to the arc plates (511) are hinged on the outer circumference of the roller (58). A rotating rod (59) and a torsion spring connected to the rotating rod (59) are rotatably provided on the connector (57). The axis of the rotating rod (59) is parallel to the axis of the roller (58). A connecting rope for connecting to the moving end of the elastic telescopic rod is wound on the rotating rod (59). An arc-shaped stop (510) located on the moving path of the arc plate (511) is provided on the outer circumference of the rotating rod (59).

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