Spring mounting device, spring assembling equipment and spring mounting method

Abstract

The invention provides a spring mounting device, spring assembling equipment and a spring mounting method, and relates to the technical field of spring mounting. The spring installation device comprises a rotating rod, an elastic piece and an installation turning head. The elastic piece is installed on the rotating rod and used for picking up the spring. The spring comprises a guide part and an installation part which are connected, and the diameter of the guide part is larger than that of the installation part. The installation turning head is arranged on the rotating rod and used for abutting against the spring. The device facilitates installation of the spring and facilitates improvement of the installation efficiency of the spring.

Description

Technical Field

[0001] The present invention relates to the technical field of spring installation, and in particular to a spring installation device, a spring assembly equipment and a spring installation method. Background Art

[0002] Current spring installation methods involve manually picking up the spring and inserting it into the spring hole of the pump cylinder using a clamp. Manual spring installation is associated with low efficiency, high labor intensity, and poor assembly consistency during large-scale operations. Approximately 1% of springs produced by manual insertion into the hole are poorly assembled and require rework. Consequently, the industry is exploring automated spring assembly methods. Achieving automated spring installation and improving installation efficiency are pressing technical challenges. Summary of the Invention

[0003] The object of the present invention is to provide a spring installation device, a spring assembly device and a spring installation method, which are conducive to improving spring installation efficiency, realizing automated installation, and improving assembly consistency and assembly yield.

[0004] In a first aspect, the present invention provides a spring mounting device comprising:

[0005] Rotating rod;

[0006] an elastic member, the elastic member being mounted on the rotating rod and being used to pick up a spring; wherein the spring comprises a guide portion and a mounting portion connected to each other, and the diameter of the guide portion is larger than the diameter of the mounting portion;

[0007] The mounting elbow is arranged on the rotating rod and is used for resisting against the spring.

[0008] In an optional embodiment, the elastic member is provided on the outer circumference of the rotating rod for changing the circumferential dimension of the rotating rod; the circumferential dimension of the rotating rod is larger than the diameter of the mounting portion and smaller than the diameter of the guide portion.

[0009] In an optional embodiment, the axis of the mounting elbow is arranged at an angle to the axis of the rotating rod.

[0010] In an optional embodiment, the mounting elbow is sleeved on the rotating rod and presses the elastic member.

[0011] In an optional embodiment, the mounting elbow is provided with a first mounting hole and a second mounting hole, the axis of the first mounting hole and the axis of the rotating rod are set at an angle, the first mounting hole is used to be sleeved on the rotating rod; the second mounting hole is used for allowing a fixing part to pass through to fix the mounting elbow on the rotating rod.

[0012] In an optional embodiment, the rotating rod includes a picking-up portion, a turn fixing portion and a transmission portion connected in sequence; the elastic member is installed on the picking-up portion, the turn fixing portion is used to set the mounting turn; and the transmission portion is used to connect to an external power source.

[0013] In an optional embodiment, one end of the elastic member is connected to the picking portion, and the other end extends axially in a direction away from the elbow fixing portion, extending to the peripheral side surface of the picking portion, or extending to an end surface of the picking portion away from the elbow fixing portion.

[0014] In an optional embodiment, the mounting elbow has a curved surface for abutting against the spring.

[0015] In a second aspect, the present invention provides a spring assembly device, comprising a spring sorting device and a spring installation device according to any one of the aforementioned embodiments, wherein the spring installation device is used to pick up the spring sorted by the spring sorting device and install the spring into a target installation hole.

[0016] In a third aspect, the present invention provides a spring installation method applicable to the spring installation device described in any one of the aforementioned embodiments, the spring installation method comprising:

[0017] The rotating rod picks up the spring;

[0018] Moving the rotating rod to align the spring with the target mounting hole;

[0019] Rotating and moving the rotating rod; wherein the mounting elbow rotates eccentrically to press the spring into the target mounting hole;

[0020] The rotating rod exits from the target mounting hole.

[0021] The present invention provides a spring installation device, a spring assembly device, and a spring installation method, which have the following beneficial effects:

[0022] The elastic element on the rotating rod facilitates the adjustment of the circumferential dimension of the rotating rod, thereby improving the fit between the rotating rod and the spring. This makes spring removal convenient and reliable, and prevents it from falling. The installation bend allows the bend to abut against the spring during press-fitting, continuously applying force to the spring, facilitating insertion of the spring into the mounting hole and improving installation efficiency and assembly yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a spring installation device provided in an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a spring installed by a spring installation device provided in an embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a rotating rod of a spring mounting device provided in an embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a mounting elbow of a spring mounting device provided by an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of AA;

[0029] Figure 6 A schematic structural diagram of a spring installation device according to an embodiment of the present invention in a state of picking up a spring;

[0030] Figure 7 A schematic structural diagram of a spring installation device provided in an embodiment of the present invention in a state where the spring is picked up;

[0031] Figure 8 A schematic structural diagram of a spring installation device according to an embodiment of the present invention moving a spring to align with a target installation hole;

[0032] Figure 9 A schematic structural diagram of a spring installation device according to an embodiment of the present invention pressing a spring into a target installation hole;

[0033] Figure 10 This is a structural schematic diagram of a spring installation device provided by an embodiment of the present invention in a state of withdrawing from a target installation hole.

[0034] Icon: 100-spring mounting device; 10-spring; 11-guide part; 12-mounting part; 110-rotating rod; 111-picking part; 112-elastic head fixing part; 113-transmission part; 120-elastic part; 130-mounting elbow; 131-first mounting hole; 132-second mounting hole; 133-arc surface; 140-fixing part; 200-target mounting hole. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0040] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0042] Combine Figure 1 and Figure 2 The spring installation device 100 proposed in an embodiment of the present invention can be used for automated assembly of a spring 10, thereby picking up the spring 10 and inserting it into the target installation hole 200 to complete the installation of the spring 10. In this embodiment, the spring 10 is installed in the spring 10 installation hole of the cylinder during the assembly process of a compressor as an example. Of course, the present invention is not limited to this application, and the spring installation device 100 can also be used in other situations requiring the assembly of the spring 10 to improve installation efficiency and installation yield.

[0043] The spring installation device 100 includes a rotating rod 110, an elastic member 120 and an installation elbow 130. The elastic member 120 is installed on the rotating rod 110 and is used to pick up the spring 10. The spring 10 includes a guide portion 11 and a mounting portion 12 connected to each other, and the diameter L2 of the guide portion 11 is larger than the diameter L1 of the mounting portion 12. The installation elbow 130 is provided on the rotating rod 110 and is used to abut against the spring 10. Since the elastic member 120 is provided on the rotating rod 110, it is convenient to change the circumferential size of the rotating rod 110, so that the rotating rod 110 and the spring 10 can be better matched, and picking up the spring 10 is convenient, reliable, and not easy to fall. By providing the installation elbow 130, during the press-fitting process of the spring 10, the installation elbow 130 abuts against the spring 10 to continuously apply force to the spring 10, which facilitates the spring 10 to be driven into the mounting hole, thereby improving the installation efficiency and assembly yield.

[0044] Combine Figure 3 Optionally, the rotating rod 110 includes a picking portion 111, a corner fixing portion 112 and a transmission portion 113 connected in sequence. The elastic member 120 is provided on the outer periphery of the rotating rod 110. Specifically, the elastic member 120 is mounted on the picking portion 111. The elastic member 120 is used to change the circumferential dimension of the rotating rod 110; the circumferential dimension D of the rotating rod 110 is larger than the diameter L1 of the mounting portion 12 and smaller than the diameter L2 of the guide portion 11. In other words, the spring 10 has a relatively large end and a small end. The mounting portion 12 belongs to the small end, and the guide portion 11 belongs to the large end.

[0045] When picking up the spring 10, the picking portion 111 extends from one end of the guide portion 11 of the spring 10 and partially extends into the mounting portion 12. This creates an interference fit between the rotating rod 110 and the mounting portion 12, preventing the spring 10 from falling during the picking up and subsequent movement of the spring 10. The provision of the elastic member 120 facilitates insertion into the large end of the spring 10 while also achieving an interference fit with the small end, resulting in a reliable structure.

[0046] Optionally, the elastic member 120 is made of a metal wire, such as a deformable steel wire. The elastic member 120 can be in the form of a sheet, strip, or rod, and the cross-sectional shape of the elastic member 120 can be flexibly set according to actual conditions, including but not limited to a circular, semicircular, elliptical, crescent-shaped, arched, triangular, quadrilateral, pentagonal, hexagonal, or any polygonal shape, which is not specifically limited here. The material of the elastic member 120 can be metal or non-metal, such as plastic, rubber, or other materials. In this embodiment, the elastic member 120 is made of elastic steel wire. In this way, when inserted into the spring 10, under the action of an external force, the overall circumferential dimensions of the rotating rod 110 and the elastic member 120 are reduced, making it easier to insert into the mounting portion 12 of the spring 10. After the external force is removed, the elastic member 120's own restoring force facilitates an interference fit between the elastic member 120 and the mounting portion 12, thereby preventing the spring 10 from falling off the rotating rod 110.

[0047] One end of the elastic member 120 is connected to the pickup portion 111, and the other end extends axially in a direction away from the elbow fixing portion 112, extending to the peripheral side surface of the pickup portion 111, or extending to the end surface of the pickup portion 111 away from the elbow fixing portion 112. The extension length of the elastic member 120 is not specifically limited, and its extension direction can be a linear extension or a spiral extension wrapped around the circumference of the rotating rod 110. One end of the elastic member 120 is connected to the pickup portion 111, and the connection method can be snap-fitting, sleeve-fitting, plug-fitting, bonding, riveting, or welding, etc., which is not specifically limited here.

[0048] Combine Figure 4 and Figure 5 Optionally, the mounting elbow 130 is mounted on the rotating rod 110 and presses against the elastic member 120. In this embodiment, the elbow fixing portion 112 of the rotating rod 110 is used to mount the mounting elbow 130. That is, the mounting elbow 130 is mounted on the elbow fixing portion 112. The mounting elbow 130 partially presses against the elastic member 120 to limit the position of the elastic member 120 and further secure the elastic member 120 to the rotating rod 110.

[0049] Optionally, the axis of the mounting elbow 130 is set at an angle to the axis of the rotating rod 110. That is, the mounting elbow 130 is designed as an eccentric structure. The angle B can be 5 to 40 degrees, for example, 5, 8, 10, 12, 15, 18, 20, 22, 24, 26, 28, 30, 35, or any value between 5 and 40 degrees. The eccentric setting makes it more efficient to press-fit the spring 10 into the target mounting hole 200, saves more effort, and improves assembly consistency, thereby improving the assembly yield of the spring 10.

[0050] Optionally, the mounting elbow 130 is provided with a first mounting hole 131 and a second mounting hole 132. The axis of the first mounting hole 131 is arranged at an angle of 5 to 40 degrees to the axis of the rotating rod 110. The first mounting hole 131 is configured to be sleeved on the rotating rod 110. The shape and size of the first mounting hole 131 are respectively adapted to the shape and size of the elbow fixing portion 112.

[0051] Second mounting hole 132 is used to pass through fixing member 140 to secure mounting elbow 130 to rotating rod 110. In this embodiment, the axis of second mounting hole 132 is substantially perpendicular to the axis of rotating rod 110, or at an angle of 60 to 80 degrees. Fixing member 140 includes, but is not limited to, bolts, pins, and the like.

[0052] Optionally, the mounting elbow 130 has an arc surface 133 for abutting against the spring 10. In this embodiment, the mounting elbow 130 is designed to be roughly hemispherical, that is, it has a spherical arc surface 133 for abutting against the spring 10.

[0053] Optionally, the transmission portion 113 of the rotating rod 110 is used to connect to an external power source. The external power source can be a driving member, such as an electric motor, a motor, or a cylinder. The driving member is in transmission connection with the transmission portion 113, and can drive the transmission portion 113 to rotate, thereby realizing the axial rotation of the entire rotating rod 110 and the mounting elbow 130 along the rotating rod 110. Of course, the driving member can realize the movement or rotation of the rotating rod 110, or the movement and rotation of the rotating rod 110 at the same time. The number of driving members is not limited, for example, there are two, one for realizing the movement of the rotating rod 110, and the other for realizing the rotation of the rotating rod 110.

[0054] When the spring 10 is pressed into the target mounting hole 200, the target mounting hole 200 in this embodiment is the spring 10 mounting hole of the cylinder of the compressor. The rotating rod 110 rotates, causing the mounting elbow 130 and the rotating rod 110 to rotate together. Since the mounting elbow 130 is designed as an eccentric structure, during the rotation process, the mounting elbow 130 applies pressure in sequence along the circumference of the spring 10, so that the spring 10 is gradually pressed into the target mounting hole 200. Since only a part or one side of the spring 10 is subjected to force at each moment of the press-fitting process, the spring 10 is easier to be pressed into the target mounting hole 200, and the required spring 10 pressing force is smaller. In addition, during the rotation process of the mounting elbow 130, the force applied to the spring 10 in sequence in the circumferential direction is uniform, the assembly consistency is good, and it is conducive to improving the assembly yield.

[0055] An embodiment of the present invention further provides a spring assembly device, comprising a spring arranging device and the aforementioned spring installation device 100. The spring arranging device is used to perform preliminary arranging of the springs 10, such as dispersing and positioning the springs 10, that is, separating the springs 10 into individual pieces and sequentially storing the individual springs 10 in a certain installation direction in an area to be installed. The spring installation device 100 is used to pick up the springs 10 that have been arranged by the spring arranging device, that is, the rotating rod 110 picks up the springs 10 from the area to be installed and installs the springs 10 into the target installation hole 200 through the installation elbow 130. This facilitates the automated installation of the springs 10 and improves the assembly efficiency and assembly yield of the springs 10.

[0056] Combine Figures 6 to 10 In this embodiment, a spring installation method is also provided. The spring installation method is roughly as follows:

[0057] The rotating rod 110 picks up the spring 10. The rotating rod 110 moves to the spring 10, extends from the guide portion 11 of the spring 10, and penetrates into the mounting portion 12 of the spring 10. Due to the action of the elastic member 120, the rotating rod 110 and the mounting portion 12 are interference-fitted, which prevents the spring 10 from falling.

[0058] The rotating rod 110 is moved to align the spring 10 with the target mounting hole 200. After the spring 10 is picked up, the rotating rod 110, the mounting elbow 130, and the spring 10 move as a whole, and the rotating rod 110 drives the spring 10 to the target mounting hole 200, and the spring 10 is aligned with the target mounting hole 200. During the above picking up and aligning the spring 10 with the target mounting hole 200, the rotating rod 110 only moves and does not rotate.

[0059] The spring 10 press-fitting phase begins. Rotating rod 110 is rotated and moved, simultaneously moving toward the target mounting hole 200. The mounting elbow 130 rotates eccentrically under the rotation of rotating rod 110, press-fitting the spring 10 into the target mounting hole 200 and completing the press-fitting of the spring 10. During this process, rotating rod 110 both moves and rotates. Optionally, each press-fitting operation requires approximately two to four seconds of rotation for the rotating rod 110.

[0060] Afterwards, the rotating rod 110 withdraws from the target mounting hole 200. During the withdrawal process, the rotating rod 110 only moves and does not rotate.

[0061] It should be noted that the diameter of the target mounting hole 200 is larger than the diameter of the mounting portion 12 and smaller than the diameter of the guide portion 11. When the mounting elbow 130 is press-fitted with the spring 10, the entire spring 10 is pressed into the target mounting hole 200, that is, both the guide portion 11 and the mounting portion 12 are pressed into the target mounting hole 200. In this way, the spring 10 and the target mounting hole 200 achieve an interference fit, and the clamping force between the two is greater than the clamping force between the rotating rod 110 and the spring 10. Therefore, the rotating rod 110 can be withdrawn from the target mounting hole 200 under the action of an external force without dislodging the spring 10.

[0062] In summary, the spring installation device 100, spring assembly equipment, and spring installation method provided by the embodiments of the present invention have the following beneficial effects, including:

[0063] The elastic member 120 is provided on the rotating rod 110 to facilitate the change of the circumferential dimension of the rotating rod 110, so as to better match the rotating rod 110 with the spring 10, and to facilitate and reliably pick up the spring 10 without dropping it. By providing the installation elbow 130, the installation elbow 130 is designed with an eccentric structure. During the press-fitting process of the spring 10, the installation elbow 130 rotates eccentrically and contacts the spring 10 to continuously apply force to different parts of the spring 10, making it easier to drive the spring 10 into the target installation hole 200, thereby improving installation efficiency and assembly yield.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made should be included in the scope of protection of the present invention.

Claims

1. A spring mounting device, characterized in that: include: Rotating rod (110); an elastic member (120), the elastic member (120) being mounted on the rotating rod (110) and being used to pick up the spring (10); wherein the spring (10) comprises a guide portion (11) and a mounting portion (12) connected to each other, and the diameter of the guide portion (11) is larger than the diameter of the mounting portion (12); A mounting elbow (130) is provided on the rotating rod (110) and is used to abut against the spring (10).

2. The spring mounting device according to claim 1, wherein: The elastic member (120) is arranged on the outer periphery of the rotating rod (110) and is used to change the circumferential size of the rotating rod (110); the circumferential size of the rotating rod (110) is larger than the diameter of the mounting portion (12) and smaller than the diameter of the guide portion (11).

3. The spring mounting device according to claim 1, wherein: The axis of the mounting elbow (130) is arranged at an angle to the axis of the rotating rod (110).

4. The spring mounting device according to claim 3, wherein: The mounting elbow (130) is sleeved on the rotating rod (110) and presses the elastic member (120).

5. The spring mounting device according to claim 4, characterized in that The mounting elbow (130) is provided with a first mounting hole (131) and a second mounting hole (132), wherein the axis of the first mounting hole (131) and the axis of the rotating rod (110) are arranged at an angle, and the first mounting hole (131) is used for being sleeved on the rotating rod (110); and the second mounting hole (132) is used for allowing a fixing member (140) to pass through so as to fix the mounting elbow (130) on the rotating rod (110).

6. The spring mounting device according to claim 1, wherein: The rotating rod (110) comprises a picking portion (111), a turn fixing portion (112) and a transmission portion (113) which are connected in sequence; the elastic member (120) is mounted on the picking portion (111); the turn fixing portion (112) is used to set the mounting turn (130); and the transmission portion (113) is used to connect to an external power source.

7. The spring mounting device according to claim 6, wherein: One end of the elastic member (120) is connected to the picking portion (111), and the other end extends axially in a direction away from the elbow fixing portion (112), extending to the peripheral side surface of the picking portion (111), or extending to an end surface of the picking portion (111) away from the elbow fixing portion (112).

8. The spring mounting device according to any one of claims 1 to 7, characterized in that The mounting elbow (130) has an arc surface (133) for abutting against the spring (10).

9. A spring assembly device, characterized in that: The invention comprises a spring arranging device and a spring installation device according to any one of claims 1 to 8, wherein the spring installation device is used to pick up a spring (10) arranged by the spring arranging device and install the spring (10) into a target installation hole (200).

10. A spring installation method, characterized in that: The spring installation device according to any one of claims 1 to 8, wherein the spring installation method comprises: The rotating rod (110) picks up the spring (10); Moving the rotating rod (110) to align the spring (10) with the target mounting hole (200); Rotating and moving the rotating rod (110); wherein the mounting elbow (130) rotates eccentrically to press the spring (10) into the target mounting hole (200); The rotating rod (110) withdraws from the target mounting hole (200).

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