Snap spring mounting device

Abstract

The invention relates to the technical field of part installation, in particular to a clamp spring installation device, which is characterized in that a pressing assembly comprises a guide cylinder and a pressing head; the feeding unit can carry the snap spring to a clamping position at a set angle, the clamping jaw comprises a clamping seat, a plurality of movable arc bodies and a second driving assembly, the first ends of the movable arc bodies are hinged to the clamping seat, and the second driving assembly can drive the clamping jaw to be switched between a first state and a second state so as to transfer the snap spring into the guide cylinder; limiting grooves are formed in the peripheral face of the movable arc body, the multiple limiting grooves are sequentially connected and arranged around the clamping jaw to form a limiting ring, the inner ring face of the clamping spring can abut against the interiors of the limiting grooves, the limiting ring comprises an upper ring face and a lower ring face, and the upper ring face comprises an adjusting part corresponding to an opening of the clamping spring. And the upper ring surface is gradually far away from the lower ring surface in the process of extending to the adjusting part. In this way, the problems that the two sides of the opening abut against each other and cannot be overlapped and staggered in the installation process of the clamp spring, the device is blocked, and efficiency is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of parts installation, in particular to a retaining spring installation device. Background Art

[0002] Bearings are a vital component used extensively in various industrial equipment. They typically consist of an inner ring, an outer ring, rolling elements, and a retaining spring. The rolling elements and retaining cage are located between the outer circumference of the inner ring and the inner circumference of the outer ring. The rolling elements experience rolling friction with the inner and outer rings, while retaining springs are located on either side of the outer ring to keep the rolling elements within the inner and outer rings. Bearings support rotating mechanical parts, reduce friction during movement, and ensure rotational accuracy, making them a key factor in ensuring smooth equipment operation.

[0003] Currently, during the bearing assembly process, the inner ring, outer ring, and rolling element need to be sequentially installed into a positioning mold, followed by a retaining ring shrink sleeve. The retaining ring is then placed into the retaining ring shrink sleeve, and finally, a pressure device is used to press the retaining ring into the bearing to complete the assembly. Existing, newer retaining rings have a smaller opening. To ensure proper installation, the two ends of the retaining ring opening must be overlapped and staggered before they can be installed. However, when shrinking the retaining ring, the existing installation device often causes the two sides of the opening to abut, preventing the retaining ring from shrinking into place. This causes the device to jam and is inefficient. Summary of the Invention

[0004] In order to solve the problem that the two sides of the opening abut against each other and cannot overlap and intersect during the installation of the retaining spring, and further cause the device to jam and reduce efficiency, the present invention provides a retaining spring installation device, including: the retaining spring installation device includes: a feeding assembly, a pressing assembly and a positioning assembly; the positioning assembly is used to fix the part to be installed, the part to be installed includes a retaining spring installation part, the retaining spring installation part includes a cylinder with an opening facing the pressing assembly and a retaining spring groove provided on the inner peripheral surface of the cylinder; the pressing assembly includes a guide cylinder and a pressure head, the guide cylinder includes a guide cavity, the guide cavity is configured to gradually reduce its diameter during the extension from top to bottom, the pressure head can move along the extension direction of the guide cylinder, and the retaining spring installation part is provided at the outlet end of the guide cylinder; the feeding assembly includes a feeding unit and a clamping unit, the feeding unit can carry the retaining spring to be installed to set the angle to the clamping position, the clamping unit includes a clamping claw and a first driving assembly, The clamping jaw includes a clamping seat, a plurality of movable arc bodies and a second driving component. The first end of the movable arc body is hinged on the clamping seat. The clamping jaw includes a first state and a second state. In the first state, the second ends of the plurality of movable arc bodies gather together and can extend into the inner ring of the retaining spring. In the second state, the second ends of the plurality of movable arc bodies are away from each other and supported on the inner ring surface of the retaining spring. The second driving component can drive the clamping jaw to switch between the first state and the second state. The first driving component can drive the clamping jaw to move between a predetermined position and a guide cylinder to transfer the retaining spring into the guide cylinder; a limiting groove is provided on the outer peripheral surface of the movable arc body, and a plurality of limiting grooves are connected in sequence and arranged around the clamping jaw to form a limiting ring. The inner ring surface of the retaining spring can abut against the limiting groove. The limiting ring includes an upper ring surface and a lower ring surface. The upper ring surface includes an adjustment portion corresponding to the opening of the retaining spring. The upper ring surface gradually moves away from the lower ring surface during the extension toward the adjustment portion.

[0005] In some embodiments, the bottom surface of the pressure head includes a first abutment portion and a second abutment portion. The first abutment portion can abut against the first side of the retaining spring opening, and the second abutment portion can abut against the second side of the retaining spring opening. The first abutment portion is lower than the second abutment portion.

[0006] In some embodiments, the bottom surface of the pressure head is configured to gradually rise in the process of extending from the first abutting portion to the second abutting portion.

[0007] In some embodiments, the pressure head includes an inner pressure head and an outer pressure head arranged coaxially, and also includes a third drive assembly, the outer pressure head is at least partially arranged around the inner pressure head, the first abutting portion and the second abutting portion are arranged on the lower side of the outer pressure head, both the inner pressure head and the outer pressure head can abut against the upper side of the retaining spring, the diameter of the outer pressure head is larger than the lower end diameter of the guide cavity, and the diameter of the inner pressure head is less than or equal to the lower end diameter of the guide cavity; the pressure head includes a third state and a fourth state, in the third state, the bottom end of the outer pressure head is lower than the bottom end of the inner pressure head, in the fourth state, the bottom end of the inner pressure head can extend through the lower opening of the guide cavity, and the third drive assembly can drive the pressure head to switch between the third state and the fourth state.

[0008] In some embodiments, the bottom surface of the internal pressure head corresponds to the side of the retaining spring opening as the first side, and corresponds to the side away from the retaining spring opening as the second side. The bottom surface of the internal pressure head is configured to gradually extend downward in the process of extending from the first side to the second side.

[0009] In some embodiments, the third drive assembly includes a third driver and an elastic member. The third driver can drive the inner pressure head to move in a vertical direction. The elastic member is arranged between the outer pressure head and the inner pressure head. The elastic member can push the outer pressure head to move downward.

[0010] In some embodiments, the first driving assembly drives the clamping jaw to move above the guide cylinder, and causes the central axis of the clamping jaw to shift relative to the central axis of the guide cylinder toward the direction of the retaining spring opening.

[0011] In some embodiments, the feeding unit includes a fixed plate, a pushing plate and a fourth drive component. A guide groove is provided on the fixed plate, and a pushing groove for placing a retaining ring is provided on the pushing plate. The pushing plate is arranged in the guide groove. The fourth drive component can drive the pushing plate to move along the extension direction of the guide groove, and the first end of the guide groove is the feeding position.

[0012] In some embodiments, the feeding assembly also includes a storage unit arranged on the fixed plate, the storage unit includes a storage rod, the storage rod is arranged at the second end of the guide groove, the storage rod extends in a vertical direction, the retaining spring can be sequentially sleeved on the storage rod, and a guide bar is provided on the storage rod, the guide bar matches the retaining spring opening and can pass through the openings of multiple retaining springs in sequence.

[0013] In some embodiments, the push plate can be moved to the bottom of the material storage cavity, the length of the push plate is greater than the distance between the material storage rod and the feeding position, and the depth of the push groove matches the thickness of the retaining spring.

[0014] To solve the problem that the two sides of the opening abut against each other during the installation of the retaining spring and cannot overlap and intersect, which further causes the device to jam and reduce efficiency, the present invention has the following advantages: In the above technical solution, the positioning assembly is used to install the part to be installed at the outlet end of the guide cylinder. The inner side of the guide cylinder is an inverted conical surface. The pressure head pushes the retaining spring to be gradually compressed and tightened during the movement along the guide cylinder. The feeding assembly is used to transfer the retaining spring to be installed into the guide cylinder, wherein the clamping claw includes a plurality of movable arcs hinged to the clamping seat, so that the movable arc can rotate relative to the clamping seat, that is, the movement trajectory of the end away from the clamping seat is arc-shaped. Therefore, when it extends into the inner ring of the retaining spring and opens for grasping, it can also apply an upward force to the retaining spring, so that the retaining spring will move upward during the clamping process. The setting of the limit groove can, on the one hand, limit the unlimited upward movement of the retaining spring, so that it is restricted by the upper ring surface; on the other hand, since the upper ring surface is set to gradually move away from the lower ring surface in the process of extending toward the adjusting portion, that is, the whole gradually tilts upward from the side away from the retaining spring opening to the side of the retaining spring opening, so that after the retaining spring is grasped by the clamping claw, the retaining spring opening is tilted upward, and can fall into the guide cylinder in this posture, then when the pressure head pushes the retaining spring to move and compress it, it can first contact the retaining spring opening, so that the retaining spring opening starts to compress first, making it easier for the two ends of the retaining spring opening to overlap, thereby preventing jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a retaining spring installation device according to an embodiment is shown; Figure 2 A schematic structural diagram of a retaining spring to be installed according to an embodiment is shown; Figure 3 A schematic structural diagram of a material storage unit and a material feeding unit according to an embodiment is shown; Figure 4 A schematic structural diagram of a clamping unit according to an embodiment is shown; Figure 5 A schematic structural diagram of a clamping jaw according to an embodiment is shown; Figure 6 A schematic structural diagram of a press-fit assembly according to an embodiment is shown; Figure 7 A schematic cross-sectional structure diagram of an indenter according to an embodiment is shown; Figure 8 A schematic structural diagram of an external pressure head according to an embodiment is shown; Figure 9 A schematic structural diagram of a feeding unit according to an embodiment is shown; Figure 10 A partial structural schematic diagram of a storage unit according to an embodiment is shown.

[0016] Reference numerals: 10-feeding assembly; 11-feeding unit; 111-fixed plate; 1111-guide groove; 112-push plate; 1121-push groove; 113-fourth driving assembly; 12-clamping unit; 121-clamping claw; 1211-clamping seat; 1212-movable arc; 1213-limiting groove; 12131-upper annular surface; 12132-lower annular surface; 1214-second driving assembly; 122-first driving assembly; 1 221-horizontal drive; 1222-vertical drive; 13-storage unit; 131-storage rod; 132-guide bar; 20-pressing assembly; 21-guide cylinder; 211-guide cavity; 22-pressing head; 221-external press head; 2211-first abutting portion; 2212-second abutting portion; 222-internal press head; 23-third drive assembly; 231-third drive; 232-elastic member; 40-circlip; 41-circlip opening. DETAILED DESCRIPTION

[0017] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0018] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0019] This embodiment discloses a mounting device for a retaining spring 40, such as Figures 1 to 10As shown, it can include: the retaining spring 40 installation device includes: a feeding component 10, a pressing component 20 and a positioning component; the positioning component is used to fix the part to be installed, the part to be installed includes a retaining spring 40 installation part, the retaining spring 40 installation part includes a cylinder with an opening facing the pressing component 20 and a retaining spring 40 groove provided on the inner peripheral surface of the cylinder; the pressing component 20 includes a guide cylinder 21 and a pressure head 22, the guide cylinder 21 includes a guide cavity 211, and the guide cavity 211 is configured to gradually reduce its diameter in the process of extending from top to bottom The pressure head 22 can move along the extension direction of the guide cylinder 21, and the mounting portion of the retaining spring 40 is arranged at the outlet end of the guide cylinder 21; the feeding assembly 10 includes a feeding unit 11 and a clamping unit 12, the feeding unit 11 can carry the retaining spring 40 to be installed to set the angle to the clamping position, the clamping unit 12 includes a clamping claw 121 and a first driving assembly 122, the clamping claw 121 includes a clamping seat 1211, a plurality of movable arc bodies 1212 and a second driving assembly 1214, the first end of the movable arc body 1212 is hinged to On the clamping seat 1211, the clamping jaw 121 includes a first state and a second state. In the first state, the second ends of the multiple movable arc bodies 1212 gather together and can extend into the inner ring of the retaining spring 40. In the second state, the second ends of the multiple movable arc bodies 1212 are separated from each other and supported on the inner ring surface of the retaining spring 40. The second driving component 1214 can drive the clamping jaw 121 to switch between the first state and the second state. The first driving component 122 can drive the clamping jaw 121 to move between the predetermined position and the guide cylinder 21. , so as to transfer the retaining spring 40 into the guide cylinder 21; a limiting groove 1213 is provided on the outer peripheral surface of the movable arc body 1212, and a plurality of limiting grooves 1213 are connected in sequence and arranged around the clamping jaw 121 to form a limiting ring, and the inner ring surface of the retaining spring 40 can abut against the limiting groove 1213. The limiting ring includes an upper ring surface 12131 and a lower ring surface 12132. The upper ring surface 12131 includes an adjustment portion corresponding to the retaining spring opening 41, and the upper ring surface 12131 gradually moves away from the lower ring surface 12132 in the process of extending toward the adjustment portion.

[0020] In the above technical solution, the positioning assembly is used to install the part to be installed at the outlet end of the guide cylinder 21. The inner side of the guide cylinder 21 is an inverted conical surface. The pressure head 22 pushes the retaining spring 40 along the guide cylinder 21 to be gradually compressed and tightened. The feeding assembly 10 is used to transfer the retaining spring 40 to be installed into the guide cylinder 21. Figure 4-5As shown, the clamping claw 121 includes a plurality of movable arc bodies 1212 hinged to the clamping seat 1211, so that the movable arc body 1212 can rotate relative to the clamping seat 1211, that is, the movement trajectory of the end away from the clamping seat 1211 is arc-shaped. Therefore, when it extends into the inner ring of the clamping spring 40 and opens to grasp, it can also apply an upward force to the clamping spring 40, so that the clamping spring 40 will move upward during the clamping process. The setting of the limiting groove 1213 can, on the one hand, limit the unlimited upward movement of the clamping spring 40, so that it is restricted by the upper annular surface 12131. On the other hand, since the upper annular surface 12131 is set to extend toward the adjustment portion In the process, the clamping spring 40 gradually moves away from the lower annular surface 12132, that is, the whole body gradually tilts upward from the side away from the clamping spring opening 41 to the side of the clamping spring opening 41, so that after the clamping spring 40 is grasped by the clamping jaws 121, the clamping spring opening 41 is tilted upward. When the clamping jaws 121 release the clamping spring 40, the action is faster and the falling distance is smaller, so that the clamping spring 40 can fall into the guide cylinder 21 with the clamping spring opening 41 tilted upward. Then, when the pressure head 22 pushes the clamping spring 40 to move and compress it, it can first contact the clamping spring opening 41, so that the clamping spring opening 41 starts to compress first, making the two ends of the clamping spring opening 41 easier to overlap, thereby preventing jamming.

[0021] It should be noted that the retaining ring 40 to be installed can be as follows Figure 2 As shown, its structure is annular and is provided with an opening. The opening can extend in the radial direction or have an angle with the radial direction. The directions of the openings can be close to each other. In some specific structures, the two ends of the opening can also overlap to further reduce the diameter. In addition, the positioning assembly can fix and support the parts to be installed in an appropriate manner. It can include a variety of implementation methods. Specifically, it can be a supporting or fixed structure, or a robotic arm that automatically grabs the product and fixes it. The outlet end of the guide cylinder 21 can be directly connected to the opening of the cylinder of the part to be installed, so that the retaining spring 40 can be directly pushed out of the guide cylinder 21 and then enter the cylinder directly, thereby preventing the retaining spring 40 from flying out after losing the constraint of the guide cylinder 21. Since the clamping jaws 121 adjust the retaining spring 40 to a state where the opening is tilted upward after clamping and grabbing the retaining spring 40, the clamping jaws 121 can also extend into the guide cylinder 21 when placing it into the guide cylinder 21. After the retaining spring 40 is placed stably with the opening tilted upward, the clamping jaws 121 are gathered and extended from the inner ring of the retaining spring 40. As shown Figure 3 、 Figure 4As shown, the first drive assembly 122 includes a vertical driver 1222, which can drive the clamping jaw 121 to move in the vertical direction, so that the clamping jaw 121 can grasp and place the retaining spring 40. At the same time, the first drive assembly 122 also includes a horizontal driver 1221, which can drive the clamping jaw 121 to move between the clamping position and the guide cylinder 21. As an embodiment, the second drive assembly 1214 can be a balloon provided on the clamping seat 1211, and the movable arc body 1212 is arranged in a ring and fixed on the outer circumference of the balloon. The movable arc body 1212 is driven to switch between the first state and the second state by inflating or deflating the balloon.

[0022] Among them, the inclination angle of the retaining spring 40 can be set to 5°~10°. As an embodiment, the upper annular surface 12131 can be set only corresponding to the side of the retaining spring 40 away from the retaining spring opening 41, that is, the upper annular surface 12131 corresponding to the retaining spring opening 41 may not be set with the limiting groove 1213, so that the retaining spring opening 41 is not limited by the upper annular surface 12131 and can be tilted upward as much as possible.

[0023] In order to ensure that the two ends of the spring opening 41 can overlap more smoothly, as shown in FIG. Figure 6 、 Figure 7 、 Figure 8 As shown, the bottom surface of the pressure head 22 includes a first abutment portion 2211 and a second abutment portion 2212. The first abutment portion 2211 can abut against the first side of the retaining spring opening 41, and the second abutment portion 2212 can abut against the second side of the retaining spring opening 41. The first abutment portion 2211 is lower than the second abutment portion 2212.

[0024] The retaining spring opening 41 is the overlapping part, that is, the two sides of the retaining spring opening 41 overlap. Therefore, the bottom surface of the pressing head 22 is used to form a first abutting portion 2211 and a second abutting portion 2212 with a height difference corresponding to the first side and the second side respectively, so that the pressing head 22 can first contact one side of the retaining spring opening 41 and push downward. When the second abutting portion 2212 contacts the second side of the retaining spring opening 41, the first side of the retaining spring opening 41 has moved downward a certain distance under the action of pressure and causes the retaining spring 40 to begin to shrink. On this basis, when the pressing head 22 continues to push the retaining spring 40 to move along the guide cylinder 21, the first side of the retaining spring opening 41 that is pressed down first can remain lower than the second side. After the retaining spring 40 is pushed and continues to shrink, the first side can enter below the second side, thereby ensuring that the two sides of the retaining spring opening 41 can overlap smoothly.

[0025] Furthermore, in order to ensure that the pressure head 22 can fully fit with the clamping spring 40, as shown in FIG. Figure 8As shown, the bottom surface of the pressing head 22 is configured to gradually rise in the process of extending from the first abutting portion 2211 to the second abutting portion 2212. As the pressing head 22 gradually moves downward during the pushing process, the bottom surface of the pressing head 22 first contacts the upwardly inclined opening 41 of the retaining spring 40, and gradually fits with the retaining spring 40 during the subsequent movement, thereby applying a downward pushing force to the entire retaining spring 40. By configuring the bottom surface to gradually rise in the process of extending from the first abutting portion 2211 to the second abutting portion 2212, the bottom surface can form a complete and continuous spiral surface or spiral curved surface (which can be selected according to actual conditions), so that the bottom surface of the pressing head 22 can completely fit with the retaining spring 40.

[0026] Since the guide cylinder 21 is a gradually shrinking structure, in order to ensure that the pressure head 22 can fully abut and push the retaining spring 40, the retaining spring 40 can also be pushed out of the guide cylinder 21 and pressed into the retaining spring 40 installation portion of the part, such as Figure 7 、 Figure 8 As shown, the pressure head 22 includes an inner pressure head 222 and an outer pressure head 221 arranged coaxially, and also includes a third drive assembly 23. The outer pressure head 221 is at least partially arranged around the inner pressure head 222, and the first abutment portion 2211 and the second abutment portion 2212 are arranged on the lower side of the outer pressure head 221. Both the inner pressure head 222 and the outer pressure head 221 can abut against the upper side of the retaining spring 40. The diameter of the outer pressure head 221 is larger than the lower end diameter of the guide cavity 211, and the diameter of the inner pressure head 222 is less than or equal to the lower end diameter of the guide cavity 211; the pressure head 22 includes a third state and a fourth state. In the third state, the bottom end of the outer pressure head 221 is lower than the bottom end of the inner pressure head 222. In the fourth state, the bottom end of the inner pressure head 222 can extend through the lower opening of the guide cavity 211, and the third drive assembly 23 can drive the pressure head 22 to switch between the third state and the fourth state.

[0027] Specifically, the inner pressure head 222 and the outer pressure head 221 can move relative to each other. Before the pressure head 22 contacts the retaining spring 40 and in the initial stage of contacting the retaining spring 40, the outer pressure head 221 first contacts and abuts the retaining spring 40, and enables the retaining spring 40 to begin to contract smoothly. Since the diameter of the outer pressure head 221 is larger than the lower end diameter of the guide cavity 211, the outer pressure head 221 will be stuck by the inner circumference of the guide cavity 211 and restricted from moving. At this time, the inner pressure head 222 can continue to move downward relative to the outer pressure head 221 and protrude from the end face of the outer pressure head 221. At this time, the diameter of the retaining spring 40 has shrunk to the point where it can be abutted by the inner pressure head 222 The two sides of the retaining spring opening 41 are connected and overlapped, so even if only the inner pressure head 222 pushes the retaining spring 40 with the help of the circumferential limitation of the guide cylinder 21, the retaining spring 40 will not be detached, and can continue to shrink and enter the retaining spring 40 installation part under the push of the inner pressure head 222, wherein the third drive assembly 23 may include at least one component that can drive the inner and outer pressure heads 221 to move relative to each other, which can be an elastic member 232 or a slide rail, or a combination of multiple drive structures to play the role of driving and limiting at the same time, so as to ensure that the inner pressure head 222 and the outer pressure head 221 move as planned and will not be dislocated.

[0028] Furthermore, since the clamping spring 40 overlaps on both sides of the opening, the position is relatively thick, and the clamping spring 40 groove in the mounting portion of the clamping spring 40 can only accommodate the thickness of the clamping spring 40 in order to limit the clamping spring 40. In order to ensure that the clamping spring 40 can smoothly enter the clamping spring 40 groove, as shown in FIG. Figure 7 As shown, the bottom surface of the internal pressure head 222 corresponds to the side of the retaining spring opening 41 as the first side, and the side corresponding to the side away from the retaining spring opening 41 as the second side. The bottom surface of the internal pressure head 222 is set to gradually extend downward during the extension process from the first side to the second side.

[0029] In the above scheme, by means of the transformation of the pushing process of the clamping spring 40 by the inner pressure head 222 and the outer pressure head 221, the clamping spring 40 is converted from being attached to the bottom surface of the outer pressure head 221 to being attached to the bottom surface of the inner pressure head 222, and the inclination direction of the bottom surface of the inner pressure head 222 is set to correspond to the lower side of the clamping spring 40 away from the opening, that is, opposite to the inclination direction of the outer pressure head 221, so that when the inner pressure head 222 pushes the clamping spring 40, it is converted from the lower side of the overlapping opening to the lower position on the side away from the opening. Therefore, this position is at the inner pressure head 22 2 can first enter the mounting portion of the retaining spring 40, and further enter the retaining spring 40 groove and begin to expand and be limited by the side wall of the retaining spring 40 groove. This part can form a guiding effect, so that the internal pressure head 222 continues to push the overlapping opening of the retaining spring 40 to move into the retaining spring 40 groove, and with the help of the guiding effect of the part that has entered the retaining spring 40 groove, the remaining part can smoothly enter the retaining spring 40 groove, thereby avoiding the situation that the retaining spring 40 goes too deep into the cylindrical structure of the retaining spring 40 mounting portion and fails to enter the retaining spring 40 groove.

[0030] In some embodiments, a sliding pin may be provided on the side of the outer pressure head 221 facing the inner pressure head 222, and the inner pressure head 222 is provided with an elongated limiting groove 1213 provided along the extension direction of the inner pressure head 222. The sliding pin can slide in the limiting groove 1213 to limit the outer pressure head 221 from moving relative to the inner pressure head 222 within the length range of the limiting groove 1213. At the same time, the length of the limiting groove 1213 can be set according to the distance that the inner pressure head 222 needs to extend out of the outer pressure head 221, so as to prevent the inner pressure head 222 from extending too long. Specifically, as Figure 6 、 Figure 7 As shown, the third driving assembly 23 includes a third driver 231 and an elastic member 232. The third driver 231 can drive the inner pressure head 222 to move in the vertical direction. The elastic member 232 is arranged between the outer pressure head 221 and the inner pressure head 222. The elastic member 232 can push the outer pressure head 221 to move downward.

[0031] The elastic member 232 can be an elastic structure such as a spring. The third driver 231 can be connected to the inner pressure head 222 or connected to the inner pressure head 222 and the outer pressure head 221 respectively, thereby driving the pressure head 22 to move as a whole and applying a pushing force to the retaining spring 40. The setting of the elastic member 232 enables the outer pressure head 221 to maintain an extended state relative to the inner pressure head 222 until it is limited by the inner side surface of the guide cylinder 21, compressing the elastic member 232, so that the inner pressure head 222 extends out of the outer pressure head 221.

[0032] In order to further ensure that the retaining spring 40 can maintain an upward tilted state at the retaining spring opening 41 after entering the guide cylinder 21, the first drive assembly 122 drives the clamping jaw 121 to move above the guide cylinder 21, and makes the center axis of the clamping jaw 121 offset relative to the center axis of the guide cylinder 21 toward the direction of the retaining spring opening 41.

[0033] Later, when the clamping jaws 121 release the retaining spring 40, its center axis deviates from the center axis of the guide cylinder 21 in the direction of the retaining spring opening 41, so that when the retaining spring 40 enters the guide cylinder 21, even if the retaining spring 40 becomes horizontal or reversely tilted due to a release error of the clamping jaws 121, due to the relative offset of the center axis, the position of the retaining spring opening 41 is closer to the inner wall of the guide cavity 211. Therefore, it can first contact the inner wall of the guide cavity 211 and stop moving downward, and the side of the retaining spring 40 away from the retaining spring opening 41 is farther from the inner wall of the guide cavity 211. When the retaining spring opening 41 has contacted the inner wall of the guide cavity 211, the other side has not yet contacted the inner wall of the guide cavity 211 and continues to fall downward, thereby further ensuring that the retaining spring 40 can be in a state of upward tilt at the retaining spring opening 41. When the retaining spring 40 is placed in this way, although the retaining spring 40 is offset from the central axis of the guide cavity 211 at the initial stage of placement, during the pushing process, the retaining spring 40 gradually changes from an inclined state to a flat state, that is, the open end contracts and the side away from the opening is less deformed, so that the retaining spring 40 gradually becomes coaxial with the guide cylinder 21 under the limiting action of the guide cylinder 21 before continuing to be pushed as a whole. Therefore, the retaining spring 40 will not be offset in position, and the relative position of the axis of the retaining spring 40 and the guide cylinder 21 can be corrected during the pushing process so that the two can basically coincide.

[0034] In order to improve the efficiency of the equipment, the feeding unit 11 can be operated continuously, such as Figure 9As shown, the feeding unit 11 includes a fixed plate 111, a pushing plate 112 and a fourth driving assembly 113. The fixed plate 111 is provided with a guide groove 1111, and the pushing plate 112 is provided with a pushing groove 1121 for placing the retaining ring 40. The pushing plate 112 is arranged in the guide groove 1111. The fourth driving assembly 113 can drive the pushing plate 112 to move along the extension direction of the guide groove 1111. The first end of the guide groove 1111 is the feeding position. By the reciprocating movement of the pushing plate 112, the clamping spring 40 to be installed placed in the pushing plate 112 can be pushed to the set feeding position in sequence for the gripping of the clamping claw 121. The pushing groove 1121 can accommodate and limit the clamping spring 40, and the guide groove 1111 can guide the moving direction of the pushing groove 1121 and the pushing plate 112, so that the pushing groove 1121 can move smoothly. At the same time, the guide groove 1111 on the fixed plate 111 can also play a limiting role. When the opening of the clamping spring 40 is placed in the pushing groove 1121 in the set direction, the clamping spring 40 will not be angularly deviated during the pushing process of the pushing groove 1121, so that it can be transported to the clamping position at the set angle. As an optional embodiment, the pushing groove 1121 can also be made to rotate relatively and a sensor for detecting the direction of the clamping spring opening 41 is provided. By the rotation of the pushing groove 1121, the opening direction of the clamping spring 40 is adjusted at the same time during movement. In the direction, it is also possible to set the angle to transport the retaining spring 40 to the clamping position. At this time, the clamping jaw 121 does not need to be rotated or the like to adjust the retaining spring 40, thereby reducing the adjustment parts on the clamping jaw 121. Due to the structural simplification, the height dimension of the clamping jaw 121 can be reduced. Since the clamping jaw 121 needs to be able to enter the gap between the pressure head 22 and the guide cylinder 21 at the initial position during the transportation of the retaining spring 40, so that the clamping jaw 121 can reach the top of the guide cylinder 21, therefore, reducing the height dimension of the clamping jaw 121 can reduce the required height dimension of the gap space between the clamping jaw 121 and the guide cylinder 21. Since the guide cylinder 21 is fixed and only the pressure head 22 moves in the vertical direction, the reduction in the gap space reduces the moving distance of the pressure head 22. Under the same driving speed, the operation can be performed faster, thereby improving the operating efficiency of the equipment.

[0035] In order to further improve the feeding efficiency, the angle adjustment process of the clamping spring 40 is eliminated, ensuring that the clamping spring 40 can be moved to the clamping position at a predetermined angle, such as Figure 9 、 Figure 10 As shown, the feeding assembly 10 also includes a storage unit 13 arranged on the fixed plate 111, and the storage unit 13 includes a storage rod 131. The storage rod 131 is arranged at the second end of the guide groove 1111, and the storage rod 131 extends in the vertical direction. The retaining spring 40 can be sequentially sleeved on the storage rod 131, and a guide bar 132 is provided on the storage rod 131. The guide bar 132 matches the retaining spring opening 41 and can pass through the openings of multiple retaining springs 40 in sequence.

[0036] The retaining springs 40 to be installed can be stored in the storage unit 13 in a centralized manner. By sequentially sleeve-mounting the retaining springs 40 on the storage rod 131, the retaining springs 40 can be stacked in sequence along the vertical direction, and the guide bars 132 are also vertically arranged and can match the openings of the retaining springs 40, thereby guiding the retaining springs 40 to be arranged in the same direction, so that the retaining springs 40 are all in the same direction after being taken out.

[0037] Furthermore, if Figure 9 As shown, the push plate 112 can be moved to the bottom of the material storage cavity. The length of the push plate 112 is greater than the distance between the material storage rod 131 and the feeding position. The depth of the push groove 1121 matches the thickness of the retaining ring 40. When the pushing plate 112 moves to the bottom of the material storage cavity and makes the pushing groove 1121 connected with the lower side of the material storage rod 131, the clamping spring 40 stored at the bottom of the material storage rod 131 can fall into the pushing groove 1121 under the action of gravity, and because the depth of the pushing groove 1121 matches the thickness of the clamping spring 40, it can only accommodate one clamping spring 40. When the pushing plate 112 continues to move to the set clamping position, the clamping spring 40 can be transported out. The pushing plate 112 repeatedly moves between the bottom of the material storage rod 131 and the clamping position, so that the clamping springs 40 that fall into the pushing plate 112 in the same direction in turn can be moved to the clamping position, so that the clamping claw 121 can directly clamp and transport the clamping spring 40 in the pushing groove 1121.

[0038] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A retaining spring installation device, characterized in that: The retaining spring installation device includes: a feeding assembly, a pressing assembly and a positioning assembly; The positioning assembly is used to fix the part to be installed, and the part to be installed includes a retaining spring mounting portion, and the retaining spring mounting portion includes a cylinder with an opening facing the pressing assembly and a retaining spring groove provided on the inner circumference of the cylinder; the pressing assembly includes a guide cylinder and a pressure head, and the guide cylinder includes a guide cavity, and the guide cavity is configured to gradually decrease in diameter during the process of extending from top to bottom, and the pressure head can move along the extension direction of the guide cylinder, and the retaining spring mounting portion is provided at the outlet end of the guide cylinder; The feeding assembly includes a feeding unit and a clamping unit, wherein the feeding unit is capable of carrying the clamping spring to be installed to a set angle to a clamping position, the clamping unit includes a clamping jaw and a first driving assembly, the clamping jaw includes a clamping seat, a plurality of movable arc bodies and a second driving assembly, the first end of the movable arc body is hinged to the clamping seat, the clamping jaw includes a first state and a second state, in the first state, the second ends of the plurality of movable arc bodies gather together and can extend into the inner ring of the clamping spring, in the second state, the second ends of the plurality of movable arc bodies are away from each other and supported inwardly on the inner ring surface of the clamping spring, the second driving assembly can drive the clamping jaw to switch between the first state and the second state, and the first driving assembly can drive the clamping jaw to move between the predetermined position and the guide cylinder to transfer the clamping spring into the guide cylinder; A limiting groove is provided on the outer peripheral surface of the movable arc body, and a plurality of the limiting grooves are connected in sequence and arranged around the clamping jaw to form a limiting ring. The inner ring surface of the retaining spring can abut against the limiting groove. The limiting ring includes an upper ring surface and a lower ring surface. The upper ring surface includes an adjustment portion corresponding to the opening of the retaining spring. The upper ring surface gradually moves away from the lower ring surface during the process of extending toward the adjustment portion.

2. A retaining spring installation device according to claim 1, characterized in that: The bottom surface of the pressure head includes a first abutting portion and a second abutting portion. The first abutting portion can abut against the first side of the retaining spring opening, and the second abutting portion can abut against the second side of the retaining spring opening. The first abutting portion is lower than the second abutting portion.

3. A retaining spring installation device according to claim 2, characterized in that: The bottom surface of the pressure head is configured to gradually rise in the process of extending from the first abutting portion to the second abutting portion.

4. A retaining spring installation device according to claim 2, characterized in that: The pressure head includes an inner pressure head and an outer pressure head arranged coaxially, and also includes a third driving assembly, the outer pressure head is arranged at least partially around the inner pressure head, the first abutting portion and the second abutting portion are arranged on the lower side of the outer pressure head, the inner pressure head and the outer pressure head are both capable of abutting against the upper side of the clamping spring, the diameter of the outer pressure head is larger than the lower end diameter of the guide cavity, and the diameter of the inner pressure head is less than or equal to the lower end diameter of the guide cavity; The pressure head includes a third state and a fourth state. In the third state, the bottom end of the external pressure head is lower than the bottom end of the internal pressure head. In the fourth state, the bottom end of the internal pressure head can extend through the lower opening of the guide cavity. The third drive assembly can drive the pressure head to switch between the third state and the fourth state.

5. A retaining spring installation device according to claim 4, characterized in that: The bottom surface of the inner pressure head corresponds to the side of the retaining spring opening as the first side, and corresponds to the side away from the retaining spring opening as the second side. The bottom surface of the inner pressure head is configured to gradually extend downward in the process of extending from the first side to the second side.

6. A retaining spring installation device according to claim 4, characterized in that: The third driving assembly includes a third driver and an elastic member. The third driver can drive the inner pressure head to move in a vertical direction. The elastic member is arranged between the outer pressure head and the inner pressure head. The elastic member can push the outer pressure head to move downward.

7. The retaining spring installation device according to claim 1, characterized in that: The first driving assembly drives the clamping jaw to move above the guide cylinder, and causes the central axis of the clamping jaw to deviate relative to the central axis of the guide cylinder toward the direction of the retaining spring opening.

8. The retaining spring installation device according to claim 1, characterized in that: The feeding unit includes a fixed plate, a pushing plate and a fourth driving component. The fixed plate is provided with a guide groove. The pushing plate is provided with a pushing groove for placing the retaining ring. The pushing plate is arranged in the guide groove. The fourth driving component can drive the pushing plate to move along the extension direction of the guide groove. The first end of the guide groove is the feeding position.

9. A retaining spring installation device according to claim 8, characterized in that: The feeding assembly also includes a material storage unit arranged on the fixed plate, and the material storage unit includes a material storage rod. The material storage rod is arranged at the second end of the guide groove, and the material storage rod extends in a vertical direction. The retaining spring can be sequentially sleeved on the material storage rod, and a guide bar is provided on the material storage rod. The guide bar matches the retaining spring opening and can pass through multiple retaining spring openings in sequence.

10. A retaining spring installation device according to claim 9, characterized in that: The push plate can be moved to the bottom of the material storage cavity, the length of the push plate is greater than the distance between the material storage rod and the feeding position, and the depth of the push groove matches the thickness of the retaining ring.

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