Snap spring assembling device

Abstract

The utility model discloses a clamp spring assembling device which comprises an objective table, a buckling mechanism, a jig and a control switch, and the jig matched with a workpiece is fixedly arranged on a base on the objective table; the buckling mechanism is arranged on the side face of the base and used for clamping the clamping spring. The jig is used for placing a workpiece which is provided with at least one through hole; wherein a nut column with a spring is arranged in the through hole; the control switch is electrically connected with the buckling mechanism and used for controlling the buckling mechanism to enable the clamping spring to stretch out towards the direction of the workpiece so that the clamping spring can be clamped into the nut column. The mode that the nut column is manually pressed and the clamping spring is automatically clamped into the nut column is combined, the assembling stability is high, and compared with a whole-process manual assembling mode, the assembling efficiency can be improved; and compared with the situation that a nut column is likely to be inclined in a full-automatic assembling mode, the yield can be increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of snap spring assembly, in particular to a snap spring assembly device. BACKGROUND

[0002] The snap spring is also called a check ring or a clasp ring, and belongs to a kind of fastener, which is used to be installed in a shaft slot or a hole slot of a machine or equipment, and plays a role of preventing axial movement of a part on the shaft or a part on the hole. The snap spring can embed and connect one part with another part or integrally lock.

[0003] Due to the unique structure of the C-shaped or E-shaped snap spring, when the C-shaped or E-shaped snap spring is assembled, a full manual assembly method is usually adopted, and the efficiency of the full manual assembly method is extremely low, the operating personnel is prone to fatigue, and there are disadvantages of difficult assembly, high labor cost and low efficiency.

[0004] When the snap spring is assembled by using a full-automatic assembly method, the workpiece is pressed down by using a pressing mechanism, so that the spring of the nut column is compressed, and the snap spring is clamped into the groove of the nut column above the workpiece. Although the efficiency is high, the nut column in the through hole of the workpiece is pressed at the same time in the process of pressing the workpiece by the pressing mechanism, and the pressing force of the nut column is fixed, which may not guarantee the perpendicularity of the nut column, and when the nut column is placed obliquely, the snap spring may not be clamped in place or the snap spring may be clamped and broken in the process of being clamped into the screw rod of the nut column under the action of the clamping mechanism, which may cause product defects, and the stability of assembly is not high, and the yield of the assembled product is low. SUMMARY

[0005] The application aims to provide a snap spring assembly device to solve the technical problems in the prior art. The technical effects produced by the optional technical solutions in the many technical solutions provided by the application are described in detail below.

[0006] To achieve the above-mentioned purpose, the application provides the following technical solutions:

[0007] The application provides a snap spring assembly device, which comprises:

[0008] A carrier is fixedly provided with a base, and the base is fixedly provided with a jig matched with a workpiece;

[0009] A clamping mechanism is arranged on the side surface of the base and used for clamping a snap spring;

[0010] The jig is used for placing the workpiece, and the workpiece has at least one through hole; wherein the through hole is provided with a nut column with a spring;

[0011] A control switch is electrically connected with the buckle mechanism, and is used for controlling the buckle mechanism to extend the clamping spring towards the workpiece to clamp the clamping spring into the nut column.

[0012] In some embodiments, two limit blocks are arranged on two sides of the upper surface of the jig respectively, and the two limit blocks are used for limiting the position of the workpiece in the Y-axis direction; the jig is provided with a positioning groove, the shape of the positioning groove corresponds to the shape of the lower surface of the workpiece, and the positioning groove is used for limiting the position of the workpiece in the X-axis direction.

[0013] In some embodiments, an avoidance groove is arranged at the edge position of the upper surface of the jig, and the through hole is located at the edge position of the workpiece; when the workpiece is placed on the jig, the position of the avoidance groove corresponds to the position of the through hole.

[0014] In some embodiments, the buckle mechanism comprises a buckle base, a driving component and a top rod clamping the clamping spring, the buckle base is fixed on the side surface of the base, the driving component is fixed on the buckle base, the top rod is aligned with the screw rod of the nut column, and the driving component is drivingly connected with the top rod to drive the top rod to reciprocate towards the screw rod of the nut column.

[0015] In some embodiments, the device further comprises a feeding bin, a plurality of clamping springs are placed in the feeding bin; one end of the top rod is provided with a clamping spring groove, the feeding bin is vertically arranged with the top rod, and the clamping spring can fall into the clamping spring groove from the bottom of the feeding bin.

[0016] In some embodiments, a step is arranged at the middle part of the top rod, and the step is used for limiting the stroke of the top rod.

[0017] In some embodiments, the driving component is a gas cylinder or a motor.

[0018] In some embodiments, the number of avoidance grooves and the number of buckle mechanisms correspond to the number of through holes.

[0019] In some embodiments, the control switch is a rocker switch or a key switch, and the rocker switch or the key switch is arranged on the object table.

[0020] In some embodiments, the clamping spring assembly device further comprises a machine table, and the object table is arranged on the machine table; the control switch is a foot switch, and the foot switch is arranged below the object table.

[0021] The card spring assembly device of the application, when assembling the card spring to the nut column of the workpiece, first installs the nut column with spring to the through hole of the workpiece, and then manually presses the nut column in the process of the card spring being clamped into the nut column, so that the pressing force can be manually adjusted, and the card spring is controlled to extend to the workpiece in combination with the control switch, so that the card spring is automatically clamped into the nut column. Through the manual pressing of the nut column combined with the automatic clamping of the card spring into the nut column, the assembly stability is high, compared with the full manual assembly mode, the assembly efficiency can be improved; compared with the possible nut column skew of the full automatic assembly mode, the yield can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor, and the drawings are as follows:

[0023] Figure 1 is a structural schematic view of the card spring assembly device related to the embodiments of the application;

[0024] Figure 2 is another structural schematic view of the card spring assembly device related to the embodiments of the application;

[0025] Figure 3 is a structural schematic view of each component on the object table related to the embodiments of the application;

[0026] Figure 4 is a structural schematic view of the workpiece related to the embodiments of the application;

[0027] Figure 5 is a structural schematic view of the nut column related to the embodiments of the application;

[0028] Figure 6 is a structural schematic view of the card spring related to the embodiments of the application;

[0029] Figure 7 is a structural schematic view of the jig related to the embodiments of the application;

[0030] Figure 8 is a structural schematic view of the ejector rod related to the embodiments of the application;

[0031] Figure 9 is a structural schematic view of the card spring assembly device of the pedal switch related to the embodiments of the application.

[0032] In the figure: 10, the object table; 11, the machine table; 20, the base; 30, the jig; 31, the limiting block; 32, the positioning groove; 33, the avoiding groove; 40, the buckle mechanism; 41, the buckle base; 42, the driving part; 43, the top rod; 44, the clasp spring groove; 45, the step; 46, the gap; 60, the control switch; 70, the workpiece; 71, the through hole; 80, the nut column; 81, the screw rod; 82, the spring; 83, the groove; 90, the feeding bin; 2, the clasp spring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the various exemplary embodiments to be described below will be described with reference to the corresponding drawings, which constitute a part of the exemplary embodiments, and the various exemplary embodiments that can be used to implement the present application are described. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation described in the following exemplary embodiments does not represent all the implementations consistent with the present disclosure. It should be understood that they are only examples of processes, methods and devices, etc. consistent with some aspects of the present disclosure as described in the appended claims, and other implementations or structural and functional modifications of the implementations listed herein can be used without departing from the scope and spirit of the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply a specific orientation that the indicated element must have. The terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. The term "a plurality of" means two or more. The terms "connected", "connected" should be broadly understood, for example, it can be fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, communication connection, direct connection, indirect connection through intermediate medium, internal communication of two elements or interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more related listed items. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In order to illustrate the technical scheme described in the present application, the following will be described by specific embodiments, only the parts related to the embodiments of the present application are shown.

[0036] As shown in the figure, the present application provides a clasp spring assembly device, which comprises an object table 10, a buckle mechanism 40 and a control switch 60. Figures 1 to 7

[0037] ​The base 20 is fixedly arranged on the object table 10, and the jig 30 adapted to the workpiece 70 is fixedly arranged on the base 20.

[0038] The buckle mechanism 40 is arranged on the side of the base 20 and is used for clamping the clasp 2.

[0039] The jig 30 is used for placing the workpiece 70, and the workpiece 70 has at least one through hole 71.

[0040] The control switch 60 is electrically connected with the buckle mechanism 40 and is used for controlling the buckle mechanism 40 to extend the clasp 2 towards the workpiece 70, so as to clamp the clasp 2 into the nut column 80.

[0041] Specifically, when the clasp 2 is assembled to the workpiece 70, the jig 30 adapted to the structure of the workpiece 70 is selected and placed on the base 20. Figures 1-4 As shown in the drawings, the workpiece 70 in the embodiment is a heat dissipation fin, the front surface of the heat dissipation fin is sprayed with heat dissipation paint, and the heat dissipation fin is provided with a plurality of through holes 71 (four in the embodiment). Figure 4 The through holes 71 are used for mounting the nut column 80 with the spring 82. Figure 5 As shown in the drawings, the upper portion of the screw rod 81 of the nut column 80 is sleeved with the spring 82, and the middle and lower portions of the screw rod 81 are provided with the groove 83. Figure 6 As shown in the drawings, the clasp 2 can be an e-shaped clasp.

[0042] When the clasp 2 is fully automatically assembled to the nut column 80 of the heat dissipation fin, the front surface of the heat dissipation fin is placed towards the jig below, and then the pressing mechanism presses the heat dissipation fin to compress the spring 82 on the nut column 80, so that the clasp 2 is clamped into the groove 83 of the nut column 80 exposed above the heat dissipation fin.

[0043] After the jig 30 corresponding to the heat dissipation fin is determined, the front surface of the heat dissipation fin is placed upwards on the jig 30, and then the nut column 80 with the spring 82 is placed into the through hole 71 of the heat dissipation fin.

[0044] After the operator inserts the nut post 80 with spring 82 into the through hole 71 of the heat sink, the spring 82 is positioned between the head of the nut post 80 and the heat sink. The operator can press the head of the nut post 80 with their finger without touching other parts of the front of the heat sink. The spring 82 is compressed. Then, the control switch 60 is turned on. The control switch 60 controls the latching mechanism 40 to extend the retaining spring 2 toward the heat sink. The retaining spring 2 is engaged in the groove 83 of the screw 81. In this way, the nut post 80 with spring 82 is fixed on the heat sink.

[0045] After all the nut posts 80 are engaged with the retaining ring 2, the operator removes the heat sink, completes the material cutting, and assembles the retaining ring 2 for one heat sink.

[0046] Since the front of the heat sink is facing upwards and not towards the fixture 30, the heat dissipation paint on the front does not need to come into contact with other parts during the assembly of the retaining spring 2, ensuring that the heat dissipation paint will not be damaged.

[0047] Because the operator manually presses the nut post 80, the pressure applied by the retaining spring 2 can be flexibly adjusted when it engages with the nut post 80. The nut post 80 has a certain amount of room to move within the through hole 71, ensuring the retaining spring 2 can smoothly engage. Furthermore, the operator can also adjust the position and pressure of the nut post 80 as needed to ensure it is perpendicular to the workpiece 70, thereby improving the yield rate. Simultaneously, the retaining spring 2 is extended from the snap-fit ​​mechanism 40 towards the workpiece 70 via the control switch 60, making it convenient to use and improving efficiency.

[0048] In this embodiment of the snap ring assembly device, when assembling the snap ring 2 onto the nut post 80 of the workpiece 70, the nut post 80 with the spring 82 is first installed into the through hole 71 of the workpiece 70. Then, during the process of snap ring 2 engaging the nut post 80, the nut post 80 can be manually pressed, and the pressing force can be manually adjusted. Combined with the control switch 60, the snap ring 2 is controlled to extend towards the workpiece 70, thereby achieving automatic engagement of the snap ring 2 into the nut post 80. By combining manual pressing of the nut post 80 with the automatic engagement of the snap ring 2, the assembly stability is high, and the assembly efficiency is improved compared to a fully manual assembly method. Compared to a fully automatic assembly method, which may result in nut post misalignment, the yield rate is improved.

[0049] In some of these implementations, such as Figure 7 As shown, limit blocks 31 are respectively provided on both sides of the upper surface of the fixture 30. The two limit blocks 31 are used to limit the position of the workpiece 70 in the Y-axis direction. The fixture 30 is provided with a positioning groove 32. The shape of the positioning groove 32 corresponds to the shape of the lower surface of the workpiece 70. The positioning groove 32 is used to limit the position of the workpiece 70 in the X-axis direction.

[0050] Specifically, based on the embodiment where the workpiece 70 is a heat sink, due to the structure of the heat sink, a fixture 30 adapted to the heat sink is selected. The structure of the upper surface of the fixture 30 corresponds to the bottom structure of the workpiece 70, thereby realizing the positioning of the workpiece 70 on the fixture 30.

[0051] In some embodiments, the upper surface of the fixture 30 is provided with a relief groove 33 at the edge position, and the through hole 71 is located at the edge position of the workpiece 70; when the workpiece 70 is placed on the fixture 30, the position of the relief groove 33 corresponds to the position of the through hole 71.

[0052] Furthermore, in order to avoid the nut post 80, a clearance groove 33 can be provided on the edge of the upper surface of the fixture 30. The clearance groove 33 corresponds to the through hole 71, so that when the nut post 80 is manually pressed, it gives the nut post 80 room to move.

[0053] In some embodiments, the latching mechanism 40 includes a latching base 41, a driving component 42, and a push rod 43 for holding the snap ring 2. The latching base 41 is fixed to the side of the base 20, the driving component 42 is fixed to the latching base 41, and the push rod 43 is aligned with the screw 81 of the nut post 80. The driving component 42 is driven to connect with the push rod 43 to drive the push rod 43 to reciprocate in the direction of the screw 81 of the nut post 80.

[0054] Specifically, the drive component 42 can be a cylinder or a motor, and is driven by the push rod 43, which can drive the push rod 43 to reciprocate towards the nut post 80. When assembling the snap ring 2, the drive component 42 drives the push rod 43 to extend towards the nut post 80 so that the snap ring 2 locks the screw 81 of the nut post 80, and then the drive component 42 drives the push rod 43 to retract.

[0055] The drive component 42 is in the form of a cylinder, which is easy to control and has low cost.

[0056] In some embodiments, the snap ring assembly device further includes a feeding bin 90, in which a plurality of snap rings 2 are placed; one end of the push rod 43 is provided with a snap ring groove 44, the feeding bin 90 is arranged perpendicularly to the push rod 43, and the snap rings 2 can fall from the bottom of the feeding bin 90 into the snap ring groove 44.

[0057] Specifically, the push rod 43 is located on one side of the fixture 30 and has a feeding bin 90 for placing several arranged snap rings 2. The feeding bin 90 is fixedly set on the snap base 41. Since the feeding bin 90 is set perpendicular to the push rod 43, the snap rings 2 can fall downwards under the action of gravity and fall into the snap ring groove 44. The front middle part of the push rod 43 is provided with a gap 46. The gap 46 is used to release the snap rings 2 and return to the original position after the snap rings 2 are pushed into the nut post 80.

[0058] In some of these implementations, such as Figure 8 As shown, a step 45 is provided in the middle of the push rod 43, and the step 45 is used to limit the stroke of the push rod 43.

[0059] Specifically, the stroke of the push rod 43 can be set by the drive component 42, and the step 45 prevents the push rod 43 from overextending in the direction of the nut post 80, thus preventing the retaining spring 2 from being damaged after it gets stuck in the nut post 80.

[0060] In some embodiments, the number of clearance slots 33 and the number of latching mechanisms 40 correspond to the number of through holes 71.

[0061] For example, such as Figure 4 As shown, the workpiece 70 has four through holes 71, and the nut column 80 has four holes. Therefore, there are also four corresponding snap-fit ​​mechanisms 40. Since the workpiece 70 is rectangular or square, and the four through holes 71 are respectively set at the four corners, the clearance groove 33 is also set at the four corners of the upper surface of the fixture 30. Therefore, the four snap-fit ​​mechanisms 40 are symmetrically set at the four corners of the base 20.

[0062] Of course, the number of through holes 71 in workpiece 70 is not limited to four, but can be other numbers. In that case, the number and position of the clearance groove 33 and the snap-fit ​​mechanism 40 can be adjusted accordingly, without any restrictions.

[0063] In some of these implementations, such as Figures 1-3 As shown, the control switch 60 is a rocker switch or a push-button switch, and the rocker switch or push-button switch is mounted on the stage 10.

[0064] Specifically, for the workpiece 70 with the four through holes 71, there can be two control switches 60. These can be rocker switches or push-button switches mounted on the platform 10. One rocker switch or push-button switch is connected to two latching mechanisms 40 on one side of the fixture 30, and the other rocker switch or push-button switch is connected to two other latching mechanisms 40 on the other side of the fixture 30. During production, the rocker switch or push-button switch on the platform 10 is convenient for operators to use. One rocker switch or push-button switch can control two latching mechanisms 40. The operator can press down on the two nut pillars 80 with one hand and move the rocker switch or push-button switch with the other hand to complete the action of the retaining spring 2 locking the nut pillars 80.

[0065] In some embodiments, the snap ring assembly device further includes a machine base 11, with a platform 10 disposed on the machine base 11; the control switch 60 is a foot switch disposed under the platform 11.

[0066] Specifically, such as Figure 9As shown, the platform 10 is mounted on the machine base 11. The control switch 60 can also be a foot switch, located below the platform 10. There can be two foot switches: one connected to two latching mechanisms 40 on one side of the fixture 30, and the other connected to two more latching mechanisms 40 on the other side of the fixture 30, thus allowing one foot switch to control two latching mechanisms 40. Using foot switches allows the operator to simultaneously press both sides of the nut post 80 with both hands and step on the foot switch to drive the latching mechanism 40 to extend the retaining spring 2 and engage the screw 81 of the nut post 80, improving production efficiency. Alternatively, the operator can use one hand to press one side of the nut post 80 sequentially before stepping on the foot switch, reducing hand fatigue.

[0067] like Figure 9 As shown, for the case of the four nut posts 80, the control switch 60 can also be a foot switch. This foot switch is connected to the four locking mechanisms 40, allowing one foot switch to control all locking mechanisms 40. The operator can simultaneously press all four nut posts 80, triggering the foot switch with one foot, which in turn drives all the locking mechanisms 40 to lock the four snap rings 2 into their corresponding nut posts 80. This method can improve production efficiency.

[0068] The latching mechanism 40 is easy to use and can improve production efficiency by employing a rocker switch, push-button switch, or foot switch to control it.

[0069] The above description is merely a preferred embodiment of this application. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this application. Furthermore, under the teachings of this application, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this application. Therefore, this application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this application.

Claims

1. A clip assembly device characterized by, The utility model relates to a clamp spring assembling device, which comprises a loading table, a base fixedly arranged on the loading table, a jig fixedly arranged on the base and matched with a workpiece, a buckle mechanism arranged on the side of the base and used for clamping a clamp spring, the jig used for placing the workpiece, the workpiece having at least one through hole, wherein a nut column with a spring is arranged in the through hole, a control switch electrically connected with the buckle mechanism and used for controlling the buckle mechanism to extend the clamp spring towards the workpiece so as to clamp the clamp spring into the nut column. Two limit blocks are arranged on the upper surface of the jig respectively, and the two limit blocks are used for limiting the position of the workpiece in the Y-axis direction; a positioning groove is arranged on the jig, the shape of the positioning groove corresponds to the shape of the lower surface of the workpiece, and the positioning groove is used for limiting the position of the workpiece in the X-axis direction. An avoidance groove is arranged at the edge position of the upper surface of the jig, and the through hole is located at the edge position of the workpiece; when the workpiece is placed on the jig, the position of the avoidance groove corresponds to the position of the through hole. The buckle mechanism comprises a buckle base, a driving component and a top rod clamping the clamp spring, the buckle base is fixed on the side of the base, the driving component is fixed on the buckle base, the top rod is aligned with the screw rod of the nut column, and the driving component is drivingly connected with the top rod to drive the top rod to reciprocate towards the screw rod of the nut column. The device further comprises a feeding bin, a plurality of clamp springs are placed in the feeding bin, one end of the top rod is provided with a clamp spring groove, the feeding bin is vertically arranged with the top rod, and the clamp spring can fall into the clamp spring groove from the bottom of the feeding bin.

2. The clip assembly device of claim 1, wherein A step is arranged in the middle of the top rod, and the step is used for limiting the stroke of the top rod.

3. The clip assembly of claim 1, wherein, The driving component is a pneumatic cylinder or a motor.

4. The clip assembly device of claim 3, wherein, The number of avoidance grooves and the number of buckle mechanisms correspond to the number of through holes.

5. The clip assembly apparatus of claim 4, wherein, The control switch is a rocker switch or a key switch, and the rocker switch or the key switch is arranged on the loading table.

6. The clip assembly apparatus of claim 4, wherein, The clamp spring assembling device further comprises a machine table, the loading table is arranged on the machine table, and the control switch is a foot switch arranged under the loading table.

7. The clasp assembly of claim 4, wherein, ​ 8. The clasp assembly of claim 3, wherein, ​ 9. The clasp assembly of claim 1, wherein, ​ 10. The clip assembly apparatus of claim 1, wherein, ​

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