Parking cylinder assembly tool

Abstract

The utility model discloses a parking cylinder assembly tool, a parking cylinder comprises a parking cylinder body and a parking cylinder cover, the parking cylinder assembly tool comprises a pressing head, a pressing rod, a pressing rod, a pressing rod and a pressing rod, the guide sleeve is used for being detachably connected to the upper end of the parking cylinder body, the whole guide sleeve is in a hollow sleeve shape, and a guide part with the cross section gradually increasing from bottom to top is formed on the side, away from the parking cylinder body, of the guide sleeve; the base comprises a bottom plate, a positioning table is arranged on the bottom plate, the positioning table is provided with a mounting part matched with the outer contour of the parking cylinder body, and the parking cylinder body is mounted on the bottom plate through the mounting part. The parking cylinder cover can be stably and accurately mounted on the parking cylinder body; furthermore, the mounting precision of the parking cylinder can be effectively improved, and the workload of manual adjustment of an operator is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle component manufacturing technology, and in particular to a parking cylinder assembly tooling. Background Technology

[0002] The parking cylinder, generally referring to the parking brake cylinder, is an important component of the train braking system. The parking cylinder is used to keep the vehicle stationary: when the train or vehicle is parked, it applies braking force to keep the vehicle stationary, preventing it from sliding or rolling due to various factors such as slope or wind, thus ensuring safe parking. Furthermore, the parking cylinder works in conjunction with the braking system: it works in tandem with other braking functions such as service braking and emergency braking to provide reliable braking protection when the vehicle needs to be parked for an extended period or under special operating conditions.

[0003] The existing technology for assembling parking cylinders has the following requirements:

[0004] The parking cylinder is inserted into the intermediate body, which is equipped with a locating pin. This locating pin is used to position the parking cylinder head, thereby determining the angle between the intermediate body and the parking cylinder head. A steel pipe is installed between the parking cylinder body and the brake cylinder body. The steel pipe is a rigid component, and the angle between the parking cylinder body and the brake cylinder body must be aligned to ensure the smooth installation of the steel pipe.

[0005] The installation process for the existing parking cylinder is as follows:

[0006] 1. Based on the experience of the production staff, the relative angle between the parking cylinder head and the parking cylinder body is manually controlled, and the parking cylinder head is pressed onto the parking cylinder body using the retaining ring.

[0007] 2. Secure the parking cylinder to the intermediate body (at this time, the angle between the parking cylinder cover and the intermediate body is locked);

[0008] 3. First, install one end of the steel pipe onto the parking cylinder body. Observe the error in the connection position between the other end of the steel pipe and the brake cylinder body. Manually tap the air inlet of the parking cylinder with a rubber hammer to make the parking cylinder body and the parking cylinder head rotate relative to each other. After adjusting the angle, connect the other end of the steel pipe to the brake cylinder body.

[0009] The shortcomings of the existing installation process:

[0010] 1. Because the main spring is placed inside the parking cylinder body, and the main spring is a spring with a gradually changing cross section, and the preload that needs to be applied to the main spring is very large, the process of pressing the parking cylinder head down onto the main spring after placing the parking cylinder head on the main spring can easily cause eccentricity, resulting in the parking cylinder head not being able to be stably connected to the parking cylinder body.

[0011] 2. The existing cylinder mounting fixture only has a centering function and cannot control the precise angle between the cylinder head and the cylinder body. Subsequent installation requires a large amount of manual adjustment.

[0012] Therefore, it is necessary to propose a parking cylinder assembly fixture to solve at least one of the above problems. Utility Model Content

[0013] To address the shortcomings of existing technologies, this utility model provides a parking cylinder assembly fixture that can stably and accurately install the parking cylinder cover onto the parking cylinder body; furthermore, it can effectively improve the installation accuracy of the parking cylinder and effectively reduce the workload of manual adjustment by the operator.

[0014] The specific technical solution of this utility model embodiment is as follows:

[0015] A parking cylinder assembly fixture includes a parking cylinder body and a parking cylinder cover. The fixture includes: a pressure head for detachable connection to a press; a guide sleeve for detachable connection to the upper end of the parking cylinder body, the guide sleeve being a hollow sleeve with a guide portion having an increasing cross-section from bottom to top on the side opposite to the parking cylinder body; and a base including a base plate with a positioning platform on the base plate. The positioning platform has a mounting portion adapted to the outer contour of the parking cylinder body, and the parking cylinder body is mounted on the base plate through the mounting portion.

[0016] In a preferred embodiment, a scale is provided on the end of the pressure head opposite to the end connected to the press, and the scale is provided with graduations.

[0017] In a preferred embodiment, the bottom of the parking cylinder body is provided with an air inlet, the parking cylinder cover is provided with a waist-shaped hole extending radially, and the bottom of the pressure head is provided with a plug corresponding to the waist-shaped hole; the parking cylinder assembly fixture further includes an auxiliary positioning component, which is used to form a first predetermined angle between the first direction between the air inlet and the center of the parking cylinder body and the second direction formed by the waist-shaped hole extending radially.

[0018] In a preferred embodiment, the auxiliary positioning component includes: a first positioning component disposed on the base and corresponding to the air inlet, the first positioning component being able to restrict the circumferential rotation of the parking cylinder; a second positioning component disposed between the guide sleeve and the base, the line connecting the second positioning component to the center of the parking cylinder and the line connecting the air inlet to the center of the parking cylinder forming a second predetermined angle, the sum of the first predetermined angle and the second predetermined angle being 180°; and a third positioning component comprising components disposed on the guide sleeve and the pressure head, the third positioning component being aligned with the air inlet.

[0019] In a preferred embodiment, the first positioning component includes: a positioning block disposed on the base plate and a positioning pin installed through the positioning block, the positioning block having a mounting hole that mates with the positioning pin, and one end of the positioning pin being inserted into the air inlet through the mounting hole.

[0020] In a preferred embodiment, the base plate is provided with a sliding groove, and the base plate of the positioning block is provided with a snap-fit ​​part adapted to the structure of the sliding groove. The positioning block is movably disposed in the sliding groove through the snap-fit ​​part.

[0021] In a preferred embodiment, the positioning block includes a first part perpendicular to the base plate and a second part connected to the first part and parallel to the base plate. The mounting hole is a slot that passes through the first part and the second part, and the width of the slot is adapted to the diameter of the positioning pin.

[0022] In a preferred embodiment, the second positioning component includes: a positioning post, and a positioning port that can cooperate with the positioning post.

[0023] In a preferred embodiment, the positioning post is disposed on the base plate, and a snap-fit ​​block is disposed on the outer wall of the guide sleeve. A snap-fit ​​interface is formed on the snap-fit ​​block, and the snap-fit ​​interface is used to form the positioning port.

[0024] In a preferred embodiment, the third positioning component includes a marking portion formed on the guide sleeve, the marking portion being directly opposite the air inlet in the height direction.

[0025] In a preferred embodiment, the auxiliary positioning component further includes a pointer disposed on the pressure head, the angle between the extension direction of the pointer and the second direction formed by the radial extension of the waist-shaped hole being the first predetermined angle, the marking portion including a notch into which the pointer can extend.

[0026] In a preferred embodiment, a plurality of first openings are provided on the side wall of the guide sleeve along the circumferential direction, and the first openings can be used as operating parts.

[0027] In a preferred embodiment, the pressure head includes a cylindrical body with a plurality of second openings on the side wall of the body for inserting an angle adjustment component.

[0028] The technical solution of this utility model has the following significant beneficial effects:

[0029] In this embodiment, the parking cylinder body is positioned on a plane by setting a base, and the guide sleeve is used to guide the retaining ring into place. During the pressing down of the parking cylinder cover, a downward pressure along the center of the guide sleeve is always applied to the main spring, preventing the main spring from becoming eccentric. This allows the parking cylinder cover to be installed smoothly and accurately on the parking cylinder body. Furthermore, in this embodiment, by setting an auxiliary positioning component, the parking cylinder cover can efficiently meet the installation accuracy requirements while being installed into the parking cylinder body, effectively reducing the amount of manual adjustment work required by the operator.

[0030] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, embodiments of the present invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0031] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0032] Figure 1 This is a schematic diagram of the structure of a parking cylinder assembly tool provided in the embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the pressure head of a parking cylinder assembly fixture provided in the embodiments of this application;

[0034] Figure 3This is a schematic diagram of the base of a parking cylinder assembly fixture provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the structure of a parking cylinder assembly tool after the pressure head has been removed, as provided in the embodiments of this application;

[0036] Figure 5 This is a schematic diagram of the positioning block of a parking cylinder assembly fixture provided in the embodiments of this application.

[0037] Reference numerals in the figures of this application:

[0038] 100. Park the cylinder block;

[0039] 101. Air intake;

[0040] 200. Parking the cylinder head;

[0041] 201. Waist-shaped hole;

[0042] 1. Pressure head;

[0043] 11. Second opening;

[0044] 2. Dial;

[0045] 21. Plug;

[0046] 3. Guide sleeve;

[0047] 30. Guiding section;

[0048] 31. Card interface;

[0049] 32. Signage section;

[0050] 33. Snap-fit ​​stepped section;

[0051] 34. First opening;

[0052] 4. Base;

[0053] 40. Base plate;

[0054] 41. Positioning platform;

[0055] 42. Positioning post;

[0056] 43. Positioning block;

[0057] 430. Grooving;

[0058] 431. Part One;

[0059] 432. Part Two;

[0060] 44. Positioning pin. Detailed Implementation

[0061] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0062] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0064] This utility model provides a parking cylinder assembly fixture, which allows the parking cylinder cover to be installed stably and accurately on the parking cylinder body; furthermore, it can effectively improve the installation accuracy of the parking cylinder and effectively reduce the amount of manual adjustment work for the operator.

[0065] Please refer to the following for comprehensive information. Figures 1 to 4 This application specification provides a parking cylinder assembly fixture, the parking cylinder including a parking cylinder body 100 and a parking cylinder cover 200. The parking cylinder assembly fixture may include: a pressure head 1, which is detachably connected to a press; a guide sleeve 3, which is detachably connected to the upper end of the parking cylinder body 100, the guide sleeve 3 being hollow in shape, and having a guide portion 30 with a cross-section increasing from bottom to top on the side opposite to the parking cylinder body 100; and a base 4, which includes a base plate 40, on which a positioning platform 41 is provided, the positioning platform 41 having a mounting portion adapted to the outer contour of the parking cylinder body 100, and the parking cylinder body 100 being mounted on the base plate 40 through the mounting portion.

[0066] In this embodiment, the base 4 is used to position the parking cylinder 100 on the plane, and the guide sleeve 3 is used to guide the retaining ring into place. During the process of pressing down the parking cylinder cover 200, a downward pressure along the center of the guide sleeve 3 can always be applied to the main spring to prevent the main spring from becoming eccentric, thereby enabling the parking cylinder cover 200 to be installed smoothly and accurately on the parking cylinder 100.

[0067] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0068] The parking cylinder assembly tooling may mainly include: pressure head 1, guide sleeve 3, base 4, etc.

[0069] In this embodiment, the pressure head 1 is used for detachable connection with the press. Specifically, the detachable connection can be achieved through snap-fit, threaded connection, etc. The connection method between the pressure head 1 and the press can be set according to the specific structure of the press and the need for ease of operation, and this application does not impose any specific limitations on it.

[0070] like Figure 2 As shown, the pressure head 1 may include a cylindrical body with opposing upper and lower ends. The upper end of the cylinder can be used for connection with a press. The lower end of the cylinder may be provided with a plug 21 corresponding to the cylinder head 200. Figure 4 As shown, specifically, the parking cylinder head 200 is provided with an oblong hole 201, which can extend radially along the parking cylinder head 200. The plug 21 is used to extend into the oblong hole 201, and the plug 21 cooperates with the oblong hole 201 to realize the pressure head 1 and the cylinder head 1.

[0071] In one embodiment, a scale 2 is provided at the end of the pressure head 1 opposite to the end connected to the press, and the scale 2 is provided with graduations. Specifically, the lower end of the pressure head 1 may be provided with the scale 2, which may be annular in shape, and the scale 2 may be fixedly connected to the lower end of the pressure head 1. The upper surface of the scale 2 may be engraved with scale markings. Specifically, the scale markings may be 360° scales. The scale 2 can be used to provide an operator with a reference standard so that the operator can use the scale 2 to determine the angle between the cylinder head 200 and the cylinder block 100.

[0072] In some embodiments, the bottom of the parking cylinder body 100 is provided with an air inlet 101, the parking cylinder cover 200 is provided with a waist-shaped hole 201 extending radially, and the parking cylinder assembly tooling further includes an auxiliary positioning component, which is used to form a first predetermined angle between the first direction between the air inlet 101 and the center of the parking cylinder body 100 and the second direction formed by the waist-shaped hole 201 extending radially.

[0073] In this embodiment, the parking cylinder includes a parking cylinder body 100 and a parking cylinder cover 200 that need to be paired and installed. The bottom of the parking cylinder body 100 is provided with an air inlet 101, through which compressed air can enter the parking cylinder. Objectively, for the parking cylinder cover 200 and the parking cylinder body 100 to be precisely installed, it is necessary to ensure that the projection of the first direction between the air inlet 101 and the center of the parking cylinder body 100 and the second direction formed by the radial extension of the oblong hole 201 onto the same plane (e.g., the base plate 40) forms a first predetermined angle. The value of this first predetermined angle can be adaptively varied according to different parking cylinder models, etc. For example, the first predetermined angle includes: 60°, 65°, 70°, 30°, etc.

[0074] In this embodiment of the application, by setting an auxiliary positioning component, the parking cylinder head 200 can meet the above-mentioned first predetermined angle requirement when it is installed into the parking cylinder body 100, effectively reducing the workload of the operator to make subsequent manual adjustments.

[0075] Specifically, the auxiliary positioning components may include: a first positioning component, which is disposed on the base 4 and corresponds to the air inlet 101, and the first positioning component can restrict the circumferential rotation of the parking cylinder 100; a second positioning component, which is disposed between the guide sleeve 3 and the base 4, and the line connecting the second positioning component to the center of the parking cylinder 100 and the line connecting the air inlet 101 to the center of the parking cylinder 100 form a second predetermined angle, the sum of the first predetermined angle and the second predetermined angle being 180°; and a third positioning component, which is disposed on the guide sleeve 3 and the pressure head 1, and the third positioning component is aligned with the air inlet 101.

[0076] Please refer to the following: Figure 1 and Figure 3 The first positioning component may include: a positioning block 43 disposed on the base plate 40 and a positioning pin 44 installed through the positioning block 43. The positioning block 43 is provided with a mounting hole that cooperates with the positioning pin 44, and one end of the positioning pin 44 is inserted into the air inlet 101 through the mounting hole.

[0077] In this embodiment, the base 4 can cover the base plate 40, on which a positioning platform 41 is provided for aligning the parking cylinder 100. The positioning platform 41 has a mounting portion adapted to the outer contour of the parking cylinder 100, and the parking cylinder 100 is mounted on the base plate 40 via the mounting portion. The mounting portion can be approximately annular, and the inner diameter of the positioning platform 41 is the same as or close to the outer diameter of the parking cylinder 100, allowing the positioning platform 41 to limit the parking cylinder 100 in a plane parallel to the base plate 40. The height of the mounting portion is lower than the height of the air inlet 101 after the parking cylinder 100 is mounted in the mounting portion, allowing the air inlet 101 to be exposed above the positioning platform 41.

[0078] The first positioning component includes a positioning block 43 and a positioning pin 44. When one end of the positioning pin 44 is inserted into the air inlet 101, the circumferential rotational freedom of the parking cylinder 100 is restricted, thereby completely limiting the parking cylinder 100 in space.

[0079] The positioning block 43 provides support for the positioning pin 44, enabling the positioning pin 44 to align with the air inlet 101 of the parking cylinder block 100. The positioning block 43 and the positioning pin 44 can have a hole-shaft fit. Specifically, the positioning block 43 may have a mounting hole, the center of which is aligned with the center of the air inlet 101. The positioning pin 44 and the mounting hole can have a small clearance fit or a zero clearance fit; after one end of the positioning pin 44 passes through the mounting hole, it can be easily inserted into the air inlet 101 by moving horizontally.

[0080] In this embodiment, the positioning block 43 and the base plate 40 can be detachably connected. Specifically, the detachable connection can be a sliding connection or a snap-fit ​​connection, etc.

[0081] In one specific embodiment, the base plate 40 is provided with a sliding groove, and the base plate 40 of the positioning block 43 is provided with a snap-fit ​​part adapted to the structure of the sliding groove. The positioning block 43 is movably disposed in the sliding groove through the snap-fit ​​part.

[0082] In this embodiment, the base plate 40 may be provided with a sliding groove that matches the positioning block 43. One end of the sliding groove may be located at the positioning platform 41, and the other end may penetrate through the outer wall of the base 4. Specifically, the cross-section of the sliding groove may be an inverted T-shaped groove, and the bottom of the positioning block 43 may be provided with an adapter that matches the sliding groove. When the two are engaged, the positioning block 43 can be reliably restricted in the sliding groove.

[0083] The configuration of the air inlet 101 may differ for different parking cylinder blocks 100. For example, some air inlets 101 may be parallel to the base plate 40, while others may be perpendicular to it. To accommodate different air inlets 101, the structure of the positioning block 43 can also differ. For example, for an air inlet 101 parallel to the base plate 40, the positioning block 43 can be vertically positioned along a direction perpendicular to the base plate 40. For an air inlet 101 perpendicular to the base plate 40, for example, if the air inlet 101 faces vertically upwards, the positioning block 43 can be in an inverted L-shape. When the positioning block 43 is installed on the base plate 40 using the aforementioned detachable connection method in this embodiment, it improves the adaptability of the base plate 40, thereby meeting the positioning requirements of different parking cylinder blocks 100.

[0084] Specifically, the positioning pin 44 can be a threaded pin, and the length of one end of the threaded pin extending out of the positioning block 43 can be changed by rotating the threaded pin. When it is necessary to insert the threaded pin into the air inlet 101, the positioning block 43 can be moved closer to the positioning table 41 and the threaded pin can be rotated so that one end of the threaded pin is engaged in the air inlet 101. After the parking cylinder is assembled, the threaded pin can be rotated to disengage it from the air inlet 101, and the positioning block 43 can then be moved to separate the parking cylinder from the base 4.

[0085] like Figure 5 As shown, in another embodiment, the positioning block 43 includes a first part 431 that is perpendicular to the base plate 40 and a second part 432 that is connected to the first part 431 and parallel to the base plate 40. The mounting hole is a slot 430 that passes through the first part 431 and the second part 432. The width of the slot 430 is adapted to the diameter of the positioning pin 44.

[0086] In this embodiment, the positioning block 43 may include a first portion 431 and a second portion 432 that are perpendicular to each other. The first portion 431 may be perpendicular to the base plate 40, and the second portion 432 may be parallel to the base plate 40. The positioning block 43 may be in an inverted L-shape. The mounting hole provided on the positioning block 43 may be a slot 430 that penetrates the first portion 431 and the second portion 432. Without replacing the positioning block 43, the positioning block 43 with this structure can meet the adaptation requirements of different types of air inlets 101.

[0087] For an air inlet 101 that is perpendicular to the base plate 40, for example, if the air inlet 101 is oriented vertically upwards, a positioning pin 44 can be installed at the slot 430 of the second part 432 to fit the air inlet 101. For an air inlet 101 that is parallel to the base plate 40, for example, if the air inlet 101 is oriented horizontally, a positioning pin 44 can be installed at the slot 430 of the first part 431 to fit the air inlet 101.

[0088] In one embodiment, the second positioning component may include: the positioning post 42, and a positioning port that can cooperate with the positioning post 42.

[0089] In this embodiment, the second positioning component is used to determine the angle of the guide sleeve 3. The second positioning component is disposed between the guide sleeve 3 and the base 4. A second predetermined angle is formed between the line connecting the second positioning component to the center of the parking cylinder 100 and the line connecting the air inlet 101 to the center of the parking cylinder 100. The sum of the first predetermined angle and the second predetermined angle is 180°. The first and second positioning components cooperate to associate the angle of the air inlet 101 with the position of the positioning sleeve.

[0090] The second positioning component may include a positioning post 42 and a positioning port that cooperate with each other. The positioning post 42 may be disposed on the base plate 40, and a snap-fit ​​block is provided on the outer wall of the guide sleeve 3. The snap-fit ​​block has a snap-fit ​​interface 31, which is used to form the positioning port. The position of the positioning post 42 on the base plate 40 is predetermined, and the angle between the line connecting the positioning post 42 to the center of the parking cylinder 100 and the line connecting the air intake 101 to the center of the parking cylinder 100 is the supplementary angle of a first predetermined angle.

[0091] Of course, the positions of the positioning post 42 and the snap-fit ​​block can also be interchanged. For example, the snap-fit ​​block can be set on the base plate 40, and the positioning post 42 can be installed on the outer wall of the guide sleeve 3.

[0092] In one embodiment, the third positioning component may include a marking portion 32 formed on the guide sleeve 3, the marking portion 32 being directly opposite the air inlet 101 in the height direction.

[0093] In this embodiment, the third positioning component may include a marking portion 32 disposed on the guide sleeve 3. The marking portion 32 may be a 0-scale indicator line or a notch. When the marking portion 32 is a notch, the notch may specifically be a fine groove opened on the side wall of the guide sleeve 3. The notch coincides with the projection of the air inlet 101 onto the bottom plate 40 facing downwards. Thus, the third positioning component can cooperate with the second positioning component to make the circumferential position of the air inlet 101 equivalent to the notch of the guide sleeve 3.

[0094] In one specific embodiment, the auxiliary positioning component further includes a pointer disposed on the pressure head 1, wherein the angle between the extension direction of the pointer and the second direction formed by the radial extension of the waist-shaped hole 201 is the first predetermined angle, and the pointer can extend into the notch.

[0095] In this embodiment, the angle of the pointer can be pre-adjusted. Specifically, the angle between the extension direction of the pointer and the second direction formed by the radial extension of the waist-shaped hole 201 is the first predetermined angle. When the pointer is inserted into the notch, it can further ensure that the first direction between the air intake 101 and the center of the parking cylinder 100 and the second direction formed by the radial extension of the waist-shaped hole 201 precisely form the first predetermined angle, thus meeting the installation angle requirements.

[0096] like Figure 1 or Figure 4 As shown, in one embodiment, the guide sleeve 3 has a plurality of first openings 34 along the circumferential direction on its side wall, and the first openings 34 can be used as operating parts.

[0097] In this embodiment, the guide sleeve 3 is a hollow sleeve. A snap-fit ​​step portion 33 may be provided at the lower end of the guide sleeve 3, through which the guide sleeve 3 can be snapped into the slot at the upper end of the parking cylinder 100.

[0098] By opening multiple first openings 34 on the side wall of the guide sleeve 3, the first openings 34 can be used as an operating part that is easy for the operator to take. In addition, by setting the first openings 34, it is also beneficial to reduce the weight of the guide sleeve 3 and reduce the labor intensity of the operator.

[0099] like Figure 2 As shown, in one embodiment, the pressure head 1 may include a cylindrical body, and a plurality of second openings 11 are provided on the side wall of the cylindrical body for inserting an angle adjustment component.

[0100] In this embodiment, the cylinder sidewall of the pressure head 1 may be provided with a plurality of second openings 11, which may include multiple sets arranged in pairs. For example, such as Figure 2 As shown, it may include two sets distributed circumferentially. The bottom of the pressure head 1 is provided with a dial 2. When it is necessary to adjust the angle of the pressure head 1, the angle adjustment piece can be inserted into a set of second openings 11, and the pressure head 1 can be rotated to drive the pressure head 1 to rotate circumferentially.

[0101] The working process of the parking cylinder assembly fixture provided in one embodiment of this application is as follows:

[0102] 1. Install the pressure head 1 on the press.

[0103] 2. Place the parking cylinder 100 on the positioning platform 41 of the base 4 to achieve centering, rotate the positioning pin 44 and insert it into the air inlet 101 of the parking cylinder 100 to position the angle of the parking cylinder 100.

[0104] 3. Place the parking piston assembly and the main spring into the parking cylinder body 100 in sequence, and place the parking cylinder cover 200 and the guide sleeve 3 on the main spring;

[0105] 4. Press down the pressure head 1 to press the parking cylinder cover 200 into the parking cylinder body 100. Then, the snap-fit ​​step part 33 below the guide sleeve 3 snaps into the parking cylinder body 100 to achieve alignment. The snap-fit ​​interface 31 of the guide sleeve 3 snaps onto the positioning post 42 on the base 4 to achieve angle alignment.

[0106] 5. While keeping the pressure head 1 pressed down, install the retaining ring. The retaining ring has a break so that the guide sleeve 3 can be inserted while the pressure head 1 is pressed down. Under the guidance of the guide part 30 of the guide sleeve 3, the retaining ring is inserted between the parking cylinder body 100 and the parking cylinder head 200 to limit the parking cylinder head 200.

[0107] 6. Insert an angle adjustment piece into the pressure head 1, rotate the pressure head 1 to drive the cylinder head 200 to rotate, and observe the scale 2 in real time until the angle between the mark 32 (e.g., the 0 mark) and the center line of the waist-shaped hole 201 on the cylinder head 200 is the first predetermined angle.

[0108] 7. Raise the pressure head 1, loosen the positioning pin 44, remove the parking cylinder, and complete the assembly operation.

[0109] Of course, this application mainly uses a specific parking cylinder assembly tool as an example to illustrate its working process. When the structure of the parking cylinder assembly tool is adjusted, the working process of the parking cylinder assembly tool can also be adjusted accordingly. This application will not describe them one by one here.

[0110] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0111] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0112] The above are merely a few embodiments of this utility model. Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in this utility model. However, the patent protection scope of this utility model shall still be determined by the scope defined in the appended claims.

Claims

1. A parking cylinder assembly tool characterized by, The parking cylinder includes a parking cylinder body and a parking cylinder cover, and the parking cylinder assembly fixture includes: A pressure head, which is detachably connected to the press; A guide sleeve is provided for detachably connecting to the upper end of the parking cylinder body. The guide sleeve is generally hollow and has a guide portion with a cross-section that increases from bottom to top on the side away from the parking cylinder body. The base includes a base plate, on which a positioning platform is provided. The positioning platform has a mounting part that is adapted to the outer contour of the parking cylinder body, and the parking cylinder body is mounted on the base plate through the mounting part.

2. The parking cylinder assembly tooling of claim 1, wherein, The end of the pressure head opposite to the end connected to the press is provided with a scale, and the scale is provided with graduations.

3. The parking cylinder assembly tooling of claim 1 or 2, wherein, The bottom of the parking cylinder is provided with an air inlet, the parking cylinder cover is provided with a waist-shaped hole extending radially, and the bottom of the pressure head is provided with a plug corresponding to the waist-shaped hole. The parking cylinder assembly fixture also includes an auxiliary positioning component, which is used to form a first predetermined angle between the first direction between the air inlet and the center of the parking cylinder body and the second direction formed by the radial extension of the waist-shaped hole.

4. The parking cylinder assembly fixture as described in claim 3, characterized in that, The auxiliary positioning component includes: A first positioning component is disposed on the base and corresponding to the air inlet, and the first positioning component can restrict the circumferential rotation of the parking cylinder. The second positioning component is disposed between the guide sleeve and the base. The line connecting the second positioning component to the center of the parking cylinder and the line connecting the air inlet to the center of the parking cylinder form a second predetermined angle. The sum of the first predetermined angle and the second predetermined angle is 180°. The third positioning component includes components disposed on the guide sleeve and the pressure head, and the third positioning component is aligned with the air inlet.

5. The parking cylinder assembly tooling of claim 4, wherein, The first positioning component includes: a positioning block disposed on the base plate and a positioning pin installed through the positioning block. The positioning block is provided with a mounting hole that cooperates with the positioning pin, and one end of the positioning pin is inserted into the air inlet through the mounting hole.

6. The parking cylinder assembly tooling of claim 5, wherein, The base plate is provided with a sliding groove, and the base plate of the positioning block is provided with a snap-fit ​​part adapted to the structure of the sliding groove. The positioning block is movably disposed in the sliding groove through the snap-fit ​​part.

7. The parking cylinder assembly tooling of claim 5, wherein, The positioning block includes a first part that is perpendicular to the base plate and a second part that is connected to the first part and parallel to the base plate. The mounting hole is a slot that passes through the first part and the second part, and the width of the slot is adapted to the diameter of the positioning pin.

8. The parking cylinder assembly tooling of claim 4, wherein, The second positioning component includes: a positioning post, and a positioning port that can cooperate with the positioning post.

9. The parking cylinder assembly tooling of claim 8, wherein, The positioning post is disposed on the base plate, and a snap-fit ​​block is disposed on the outer wall of the guide sleeve. A snap-fit ​​interface is formed on the snap-fit ​​block, and the snap-fit ​​interface is used to form the positioning port.

10. The parking cylinder assembly tooling of claim 8, wherein, The third positioning component includes a marking portion formed on the guide sleeve, the marking portion being directly opposite the air inlet in the height direction.

11. The parking cylinder assembly tooling of claim 10, wherein, The auxiliary positioning component also includes a pointer disposed on the pressure head, wherein the angle between the extension direction of the pointer and the second direction formed by the radial extension of the waist-shaped hole is the first predetermined angle, and the marking portion includes a notch into which the pointer can extend.

12. The parking cylinder assembly tooling of claim 1, wherein, The guide sleeve has a plurality of first openings along the circumferential direction on its side wall, and the first openings can be used as operating parts.

13. The parking cylinder assembly tooling of claim 1, wherein, The pressure head includes a cylindrical body, and a plurality of second openings are provided on the side wall of the cylindrical body for inserting an angle adjustment component.

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