An assembly mechanism and assembly method for a drying bottle circlip

Abstract

The present invention relates to an assembly mechanism, in particular to an assembly mechanism and an assembly method for a drying bottle snap ring, which includes a guide base, a guide post, a necking slider, a snap ring positioning block, a movable pressure head, a V-shaped positioning seat, a bottom plate and a driving device. The V-shaped positioning seat and the driving device are respectively arranged on both sides of the guide base. A guide post is provided between the guide base and the V-shaped positioning seat. The necking slider is slidably sleeved on the guide post. The inner cavity of the necking slider is a tapered hole, and the outer diameter of the end of the necking slider close to the V-shaped positioning seat matches the inner diameter of the workpiece for installing the drying bottle snap ring. The snap ring positioning block is fixedly connected to the bottom plate and is located between the guide base and the necking slider. One end of the movable pressure head penetrates through the guide base and is slidably connected thereto. The other end of the movable pressure head is connected to the driving device. The end of the movable pressure head close to the necking slider is a bifurcated structure, and this bifurcated structure matches the snap ring positioning block.

Description

Technical Field

[0001] The present invention relates to an assembly mechanism, in particular to an assembly mechanism and an assembly method for a snap ring of a drying bottle. Background Art

[0002] The drying bottle is a filtering unit, which is placed on the high-pressure side of the air-conditioning circuit between the condenser and the expansion valve. The function of the drying bottle is to filter the impurity particles flowing into the air-conditioning system circuit and absorb moisture. In addition, it also stores oil and refrigerant. The drying bottle includes a bottle body, a drying bag placed in the bottle body, and a plug for preventing the drying bag from falling out of the bottle body. Usually, a snap ring groove is provided at a position near the bottle mouth of the bottle body, and a snap ring is provided at the snap ring groove to limit the plug. In the assembly of the drying bottle, the drying bag and the plug only need to be sequentially placed into the bottle body. However, it is not easy to place the snap ring into the inner hole groove, and its installation is rather difficult. Because, in order to prevent the plug from axially displacing in the bottle body, resulting in the drying bag falling out of the bottle body, it is necessary to ensure the reliability of the snap ring. In order to improve the reliability of the snap ring, the snap ring is usually made to have an interference fit. The more interference fit the snap ring has, the stronger the reliability. However, the more interference fit the snap ring has, the greater the installation difficulty.

[0003] The traditional assembly method is as follows: First, pre-assemble the plug to the bottle mouth of the bottle body, then use a hammer to knock the plug to the stop point, and then use a snap ring pliers to insert into two holes at the opening of the snap ring. Pinch the snap ring pliers by hand to make the outer diameter of the snap ring smaller, and then place it into the snap ring groove, and release the snap ring pliers to complete the installation of the snap ring, so that the snap ring successfully limits the plug. However, this assembly method has the following disadvantages: Since a great deal of force is required to compress the snap ring, the labor intensity is greatly increased, and the requirements for the operator are relatively high. It requires an experienced operator to operate, which increases the labor cost and the assembly efficiency is low; and because the force applied by the snap ring pliers is uneven, it is very easy for the snap ring to tilt when being inserted into the bottle body, resulting in the snap ring being damaged during pressing or the snap ring not being installed in place, and the product qualification rate is low.

[0004] Therefore, it is necessary to propose an assembly mechanism and an assembly method for a snap ring of a drying bottle to improve the assembly efficiency and the product qualification rate of the snap ring of the drying bottle. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an assembly mechanism and an assembly method for a snap ring of a drying bottle to solve the problems of low assembly efficiency and low product qualification rate of the snap ring of the drying bottle.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] On the one hand, the present invention provides an assembly mechanism for a drying bottle snap ring, including a guide seat, a guide post, a necking slider, a snap ring positioning block, a movable pressing head, a V-shaped positioning seat, a bottom plate, and a driving device. The guide seat, the V-shaped positioning seat, and the driving device are all fixedly connected to the bottom plate and are distributed along the axis of the bottom plate. The V-shaped positioning seat and the driving device are respectively arranged on both sides of the guide seat;

[0008] There are parallel guide posts between the guide seat and the V-shaped positioning seat. The necking slider is slidably sleeved on the guide post. The inner cavity of the necking slider is a tapered hole, and the inner diameter of the tapered hole gradually decreases from the direction of the guide seat close to the V-shaped positioning seat. Moreover, the outer diameter of the end of the necking slider close to the V-shaped positioning seat matches the inner diameter of the workpiece for installing the drying bottle snap ring to be embedded into the workpiece, and the length of the necking slider embedded into the workpiece matches the distance between the snap ring groove for installing the drying bottle snap ring in the workpiece and the opening of the workpiece;

[0009] The snap ring positioning block is fixedly connected to the bottom plate and is located between the guide seat and the necking slider. One end of the movable pressing head penetrates through the guide seat and is slidably connected thereto. The other end of the movable pressing head is connected to the driving device to drive the movable pressing head to reciprocate along the axis direction of the bottom plate;

[0010] One end of the movable pressing head close to the necking slider is a bifurcated structure, and this bifurcated structure matches the snap ring positioning block, so that the movable pressing head and the snap ring positioning block are arranged in a staggered manner. The diameter of the movable pressing head is greater than the height of the snap ring positioning block. The height of the snap ring positioning block is greater than the diameter of the snap ring. The outer diameter of the movable pressing head matches the inner diameter of the small-diameter end of the inner cavity of the necking slider.

[0011] Furthermore, the driving device includes an output rod, a fixed seat, a connecting plate, a driving block, and a crowbar. The fixed seat is fixedly connected to the bottom plate and is located on the side of the guide seat away from the V-shaped positioning seat. There is a groove at the end of the fixed seat away from the guide seat. One end of the driving block is hinged to the end of the groove away from the guide seat. The other end of the driving block is hinged to one end of the connecting plate. The other end of the connecting plate is hinged to one end of the output rod. The other end of the output rod penetrates through the fixed seat along the axis of the bottom plate and is connected to the movable pressing head to drive the axial displacement of the movable pressing head. The crowbar is fixedly connected to the top of the driving block to provide power to the driving block by an operator rotating the crowbar around the hinge axis of the driving block and the fixed block.

[0012] In another disclosure, the driving device is a reciprocating hydraulic cylinder or a reciprocating air cylinder, and the piston rod of the reciprocating hydraulic cylinder or the reciprocating air cylinder is connected to the movable pressing head.

[0013] Furthermore, the thickness of the circlip positioning block is less than the opening degree of the drying bottle circlip for pre-placing the drying bottle circlip.

[0014] Furthermore, a spring is sleeved on the guiding post between the guiding seat and the closing mouth slider so that one end of the closing mouth slider is embedded into the workpiece under the action of the spring.

[0015] Furthermore, it further includes a return linkage block slidably placed on the bottom plate. One end of the return linkage block is fixedly connected to the bottom of the movable pressure head, and the other end passes through the guiding seat, the circlip positioning block and the closing mouth slider, and a limiting block matching with the closing mouth slider is arranged at one end close to the closing mouth slider to link the closing mouth slider and pull the closing mouth slider back from the state of being embedded into the workpiece to the state of withdrawing from the workpiece.

[0016] On the other hand, the present invention also provides an assembling method for a drying bottle circlip. By using the above-mentioned assembling mechanism for the drying bottle circlip, the specific operation steps are as follows:

[0017] a. First, place the workpiece on the V-shaped positioning seat and make the opening of the workpiece face the movable pressure head;

[0018] b. Pre-place the drying bottle circlip on the circlip positioning block;

[0019] c. Push the closing mouth slider forward so that one end of it close to the workpiece is embedded into the opening of the workpiece. Under the drive of the driving device, the movable pressure head moves towards the direction of the V-shaped positioning seat;

[0020] d. The movable pressure head continues to move forward. The drying bottle circlip enters the inner cavity of the closing mouth slider under the push of the movable pressure head, completing the guiding and outer diameter reduction of the drying bottle circlip, and then disengages from the closing mouth slider under the push of the movable pressure head and enters the workpiece. After the drying bottle circlip disengages from the closing mouth slider, the outer diameter becomes larger, and the circlip falls into the circlip groove of the drying bottle, and the forward stroke of the movable pressure head ends;

[0021] e. Under the drive of the driving device, the movable pressure head starts to retreat, pushing the closing mouth slider backward. The closing mouth slider disengages from the workpiece, and the workpiece is taken out from the V-shaped positioning seat, completing the assembly of the circlip.

[0022] Furthermore, a spring is sleeved on the guiding post between the guiding seat and the closing mouth slider so that one end of the closing mouth slider is embedded into the workpiece under the action of the spring;

[0023] In step c, the closing mouth slider is pushed forward by the spring so that one end of the closing mouth slider is embedded into the workpiece.

[0024] Further, the assembly method further includes a return linkage block slidably placed on the bottom plate. One end of the return linkage block is fixedly connected to the bottom of the movable pressure head, and the other end passes through the guide base, the snap ring positioning block, and the necking slider. A limiting block matching the necking slider is provided at one end close to the necking slider to link the necking slider and pull the necking slider back from the state of being embedded in the workpiece to the state of withdrawing from the workpiece;

[0025] In step c, driven by the driving device, the movable pressure head moves towards the V-shaped positioning seat. In the initial stage of the stroke, under the action of the movable pressure head, the return linkage block moves forward. Under the action of the spring, one end of the necking slider is embedded into the workpiece;

[0026] In step e, during the retraction stroke of the movable pressure head, the return linkage block retracts under the action of the movable pressure head and drives the necking slider to retract and disengage from the workpiece.

[0027] The beneficial effects of the present invention are as follows:

[0028] Compared with the prior art, the present invention has the following obvious outstanding substantial features and remarkable advantages: By means of the necking slider with one end embedded in the workpiece and the movable pressure head, the drying bottle snap ring is first aligned and its outer diameter is reduced, and then it is directly pressed into the snap ring groove for installing the drying bottle snap ring in the workpiece, thus completing the assembly of the drying bottle snap ring. With this assembly mechanism and assembly method, there is no need for experienced operators to operate. And by means of the driving mechanism driving the movable pressure head, the labor intensity of the operators is reduced, thereby reducing the labor cost. And through the cooperation of the movable pressure head and the necking slider to automatically align the drying bottle snap ring and reduce the outer diameter, installation errors are avoided. The present invention has the remarkable advantages of high working efficiency, low labor cost, and high product qualification rate.

[0029] The present invention sleeved a spring between the guide base and the necking slider on the guide post so that one end of the necking slider is embedded into the workpiece under the action of the spring, and the return linkage block slidably placed on the bottom plate is used to limit the necking slider, realizing the functions of the automatic embedding of the necking slider into the workpiece and the linkage retraction of the necking slider, further improving the automation of the assembly mechanism, simplifying the operation process, and improving the assembly efficiency.

[0030] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0032] Figure 1 Schematic structural view of an assembly mechanism for a drying bottle snap ring in an embodiment (snap ring already assembled);

[0033] Figure 2 Side view of an assembly mechanism for a drying bottle snap ring in an embodiment;

[0034] Figure 3 For Figure 2 A-A sectional view in;

[0035] Figure 4 For Figure 3 Partial enlarged view of I in;

[0036] Figure 5 For Figure 2 B-B sectional view in;

[0037] Figure 6 Schematic partial structural view of an assembly mechanism for a drying bottle snap ring in an embodiment (snap ring not assembled);

[0038] Figure 7 Schematic partial sectional structural view of an assembly mechanism for a drying bottle snap ring in an embodiment (snap ring not assembled).

[0039] Reference numerals: guide seat 1, spring 2, guide post 3, closing slider 4, workpiece 5, drying bottle 5.1, plug 5.2, snap ring groove 5.3, snap ring positioning block 6, movable pressure head 7, drying bottle snap ring 8, return linkage block 9, V-shaped positioning seat 10, bottom plate 11, driving device 12, output rod 12.1, fixed seat 12.2, connecting plate 12.3, driving block 12.4, crowbar 12.5. Specific embodiments

[0040] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. All details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention schematically. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0041] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than actual drawings, and should not be construed as a limitation on the present invention; in order to better illustrate the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0042] In the attached drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] Please refer to Figures 1 to 7 , which is an assembly mechanism for a drying bottle snap ring, including a guide seat 1, a spring 2, a guide post 3, a closing slider 4, a snap ring positioning block 6, a movable pressure head 7, a return linkage block 9, a V-shaped positioning seat 10, a bottom plate 11 and a driving device 12. The guide seat 1, the V-shaped positioning seat 10 and the driving device 12 are all fixedly connected to the bottom plate 11 and are distributed along the axis of the bottom plate 11. The V-shaped positioning seat 10 and the driving device 12 are respectively arranged on both sides of the guide seat 1. The V-shaped positioning seat 10 is used for placing the workpiece 5, and a stop block is provided at one end of the V-shaped positioning seat 10 away from the guide seat 1 to limit the axial displacement of the workpiece 5. The workpiece 5 is a drying bottle 5.1 pre-installed with a plug 5.2, and the mouth of the drying bottle 5.1 faces the guide seat 1;

[0044] Parallel guide posts 3 are provided between the guide seat 1 and the V-shaped positioning seat 10. The closing slider 4 is slidably sleeved on the guide post 3. The inner cavity of the closing slider 4 is a tapered hole, and the inner diameter of the tapered hole gradually decreases from the direction of the guide seat 1 close to the V-shaped positioning seat 10. The outer diameter of one end of the closing slider 4 close to the V-shaped positioning seat 10 matches the inner diameter of the mouth of the drying bottle 5.1 to be embedded in the drying bottle 5.1, and the length of the closing slider 4 embedded in the drying bottle 5.1 matches the distance between the snap ring groove 5.3 for installing the drying bottle snap ring 8 in the drying bottle 5.1 and the mouth of the drying bottle 5.1;

[0045] The snap ring positioning block 6 is fixedly connected to the bottom plate 11 and is located between the guide seat 1 and the necking slider 4. One end of the movable punch 7 penetrates through the guide seat 1 and is slidably connected thereto. The other end of the movable punch 7 is connected to a driving device 12 to drive the movable punch 7 to reciprocate along the axial direction of the bottom plate 11. One end of the movable punch 7 close to the necking slider 4 is a bifurcated structure, and this bifurcated structure is matched with the snap ring positioning block 6 so that the movable punch 7 and the snap ring positioning block 6 move in a staggered manner. The diameter of the movable punch 7 is larger than the height of the snap ring positioning block 6. The height of the snap ring positioning block 6 is larger than the diameter of the drying bottle snap ring 8. The outer diameter of the movable punch 7 is matched with the small diameter of the inner cavity of the necking slider 4.

[0046] In this embodiment, the direction in which the movable punch 7 is close to the V-shaped positioning seat 10 is defined as the front, and the direction away from the V-shaped positioning seat 10 is defined as the rear.

[0047] The return linkage block 9 is slidably placed on the bottom plate 11. One end of it is fixedly connected to the bottom of the movable punch 7, and the other end penetrates through the guide seat 1, the snap ring positioning block 6 and the necking slider 4. A limiting block matching the necking slider 4 is provided at one end close to the necking slider 4 to link the necking slider 4 and pull the necking slider 4 back from the state of being embedded in the workpiece 5 to the state of withdrawing from the workpiece 5.

[0048] Preferably, a spring 2 is sleeved on the guide post 3 and is located between the guide seat 1 and the necking slider 4 so that one end of the necking slider 4 is embedded in the workpiece 5 under the action of the spring 2.

[0049] The driving device 12 includes an output rod 12.1, a fixed seat 12.2, a connecting plate 12.3, a driving block 12.4 and a crowbar 12.5. The fixed seat 12.2 is fixedly connected to the bottom plate 11 and is located on the side of the guide seat 1 away from the V-shaped positioning seat 10. A groove is provided at one end of the fixed seat 12.2 away from the guide seat 1. One end of the driving block 12.4 is hinged to one end of the groove away from the guide seat 1. The other end of the driving block 12.4 is hinged to one end of the connecting plate 12.3. The other end of the connecting plate 12.3 is hinged to one end of the output rod 12.1. The other end of the output rod 12.1 penetrates through the fixed seat 12.2 along the axis of the bottom plate 11 and is connected to the movable pressure head 7 to drive the axial displacement of the movable pressure head 7. The crowbar 12.5 is fixedly connected to the top of the driving block 12.4 to provide power to the driving block 12.4 by an operator rotating the crowbar 12.5 around the hinge axis of the driving block 12.4 and the fixed block. When the crowbar 12.5 is rotated clockwise, the output rod 12.1 in the driving device 12 pushes the movable pressure head 7 towards the V-shaped positioning seat 10. When the crowbar 12.5 is rotated counterclockwise, the output rod 12.1 in the driving device 12 pulls the movable pressure head 7 in the opposite direction of the V-shaped positioning seat 10.

[0050] Specifically, the thickness of the circlip positioning block 6 is less than the opening degree of the drying bottle circlip 8 so as to pre-place the drying bottle circlip 8. When placing the drying bottle circlip 8, just align the opening of the drying bottle circlip 8 with the circlip positioning block 6 and put it down. The stroke of the movable pressure head 7 and the depth of the closing slider 4 inserted into the workpiece 5 need to match the distance between the circlip groove 5.3 and the opening of the workpiece 5 to ensure that the movable pressure head 7 can accurately push the drying bottle circlip 8 into the circlip groove 5.3.

[0051] In another embodiment, the driving device 12 adopts a reciprocating hydraulic cylinder or a reciprocating air cylinder, and the piston rod of the reciprocating hydraulic cylinder or the reciprocating air cylinder is connected to the movable pressure head 7.

[0052] An assembling method for a drying bottle circlip adopts the above-mentioned assembling mechanism for the drying bottle circlip, and the specific operation steps are as follows:

[0053] a. First, place the drying bottle 5.1 pre-installed with a plug 5.2 on the V-shaped positioning seat 10, and the opening of the drying bottle 5.1 faces the movable pressure head 7;

[0054] b. Pre-place the drying bottle circlip 8 on the circlip positioning block 6;

[0055] c. Driven by the driving device 12, the movable pressure head 7 moves towards the direction of the V-shaped positioning seat 10. At the initial stage of the stroke, under the action of the movable pressure head 7, the return linkage block 9 moves forward. Under the action of the spring 2, one end of the necking slider 4 is embedded into the bottle mouth of the drying bottle 5.1.

[0056] d. The movable pressure head 7 continues to move forward. The drying bottle snap ring 8 enters the inner cavity of the necking slider 4 under the push of the movable pressure head 7, completing the alignment and outer diameter reduction of the drying bottle snap ring 8, and separating from the necking slider 4 under the push of the movable pressure head 7 and entering the drying bottle 5.1. After the drying bottle snap ring 8 separates from the necking slider 4, its outer diameter becomes larger. The forward stroke of the movable pressure head 7 ends, and the drying bottle snap ring 8 falls into the snap ring groove 5.3 of the drying bottle 5.1, and the installation of the drying bottle snap ring 8 is completed.

[0057] e. Driven by the driving device 12, the movable pressure head 7 starts to retract. During the retraction stroke, under the action of the movable pressure head 7, the return linkage block 9 retracts and drives the necking slider 4 to retract. The necking slider 4 separates from the drying bottle 5.1, and taking out the drying bottle 5.1 from the V-shaped positioning seat 10 completes the assembly of the drying bottle snap ring 8.

[0058] It should be noted that the drying bottle snap ring 8 and the drying bottle 5.1 in this embodiment can be replaced with other hole snap rings and cylinders, and only the parameters of the movable pressure head 7 and the necking slider 4 need to be adjusted correspondingly.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An assembly mechanism for a drying bottle circlip, characterized in that: It includes a guide seat, a guide post, a necking slider, a circlip positioning block, a movable pressure head, a V-shaped positioning seat, a bottom plate and a driving device. The guide seat, the V-shaped positioning seat and the driving device are all fixedly connected to the bottom plate and are distributed along the axis of the bottom plate. The V-shaped positioning seat and the driving device are respectively arranged on both sides of the guide seat; There are parallel guide posts between the guide seat and the V-shaped positioning seat. The necking slider is slidably sleeved on the guide posts. The inner cavity of the necking slider is a tapered hole, and the inner diameter of the tapered hole gradually decreases from the direction of the guide seat close to the V-shaped positioning seat. And the outer diameter of the end of the necking slider close to the V-shaped positioning seat matches the inner diameter of the workpiece for installing the dry bottle circlip to be embedded in the workpiece. And the length of the necking slider embedded in the workpiece matches the distance between the circlip groove for installing the dry bottle circlip in the workpiece and the opening of the workpiece; The circlip positioning block is fixedly connected to the bottom plate and is located between the guide seat and the necking slider. One end of the movable pressure head penetrates through the guide seat and is slidably connected thereto. The other end of the movable pressure head is connected to the driving device to drive the movable pressure head to reciprocate along the axis of the bottom plate; One end of the movable pressure head close to the necking slider is a bifurcated structure, and this bifurcated structure matches the circlip positioning block so that the movable pressure head and the circlip positioning block are arranged in a staggered manner. The diameter of the movable pressure head is greater than the height of the circlip positioning block. The height of the circlip positioning block is greater than the diameter of the circlip. The outer diameter of the movable pressure head matches the inner diameter of the small-diameter end of the inner cavity of the necking slider.

2. The assembly mechanism of a drying bottle circlip according to claim 1, characterized in that: The driving device includes an output rod, a fixed seat, a connecting plate, a driving block and a crowbar. The fixed seat is fixedly connected to the bottom plate and is located on the side of the guide seat away from the V-shaped positioning seat. There is a groove at the end of the fixed seat away from the guide seat. One end of the driving block is hinged to the end of the groove away from the guide seat. The other end of the driving block is hinged to one end of the connecting plate. The other end of the connecting plate is hinged to one end of the output rod. The other end of the output rod penetrates through the fixed seat along the axis of the bottom plate and is connected to the movable pressure head to drive the axial displacement of the movable pressure head. The crowbar is fixedly connected to the top of the driving block to provide power to the driving block by an operator rotating the crowbar around the hinge axis of the driving block and the fixed block.

3. The assembly mechanism of a drying bottle snap spring according to claim 1, characterized in that: The driving device is a reciprocating hydraulic cylinder or a reciprocating air cylinder. The piston rod of the reciprocating hydraulic cylinder or the reciprocating air cylinder is connected to the movable pressure head.

4. The assembly mechanism of a drying bottle circlip according to claim 1, characterized in that: The thickness of the circlip positioning block is less than the opening degree of the dry bottle circlip for pre-placing the dry bottle circlip.

5. The assembly mechanism of a drying bottle circlip according to claim 1, characterized in that: A spring is sleeved on the guide post and is located between the guide seat and the necking slider so that one end of the necking slider is embedded in the workpiece under the action of the spring.

6. The assembly mechanism of a drying bottle circlip according to claim 1, characterized in that: It further includes a return linkage block slidably placed on the bottom plate. One end of the return linkage block is fixedly connected to the bottom of the movable pressure head, and the other end passes through the guide seat, the snap ring positioning block, and the necking slider. A limiting block matching the necking slider is provided at one end close to the necking slider to link the necking slider, and the necking slider is pulled back from the state of being embedded in the workpiece to the state of withdrawing from the workpiece.

7. An assembly method for a drying bottle circlip, characterized in that, The assembly mechanism of the drying bottle snap ring according to any one of claims 1 to 4 is adopted, and the specific operation steps are as follows: a. First, place the workpiece on the V-shaped positioning seat and make the opening of the workpiece face the movable pressure head; b. Pre-place the drying bottle snap ring on the snap ring positioning block; c. Push the necking slider forward so that one end of it close to the workpiece is embedded in the opening of the workpiece. Under the drive of the driving device, the movable pressure head moves towards the V-shaped positioning seat; d. The movable pressure head continues to move forward. The drying bottle snap ring enters the inner cavity of the necking slider under the push of the movable pressure head, completing the alignment and outer diameter reduction of the drying bottle snap ring. Then, under the push of the movable pressure head, it disengages from the necking slider and enters the workpiece. After the drying bottle snap ring disengages from the necking slider, its outer diameter becomes larger, and the snap ring falls into the snap ring groove of the drying bottle. The forward stroke of the movable pressure head ends; e. Under the drive of the driving device, the movable pressure head starts to retract, pushing the necking slider backward. The necking slider disengages from the workpiece, and the workpiece is taken out from the V-shaped positioning seat, completing the assembly of the snap ring.

8. A method for assembling a snap ring of a drying bottle, according to claim 7, characterized in that: A spring is sleeved on the guiding column between the guide seat and the necking slider so that one end of the necking slider is embedded in the workpiece under the action of the spring; In step c, the necking slider is pushed forward by the spring so that one end of the necking slider is embedded in the workpiece.

9. A method for assembling a snap ring of a drying bottle, according to claim 8, characterized in that: It further includes a return linkage block slidably placed on the bottom plate. One end of the return linkage block is fixedly connected to the bottom of the movable pressure head, and the other end passes through the guide seat, the snap ring positioning block, and the necking slider. A limiting block matching the necking slider is provided at one end close to the necking slider to link the necking slider, and the necking slider is pulled back from the state of being embedded in the workpiece to the state of withdrawing from the workpiece; In step c, under the drive of the driving device, the movable pressure head moves towards the V-shaped positioning seat. At the initial stage of the stroke, the return linkage block moves forward under the action of the movable pressure head. Under the action of the spring, one end of the necking slider is embedded in the workpiece; In step e, during the retraction stroke of the movable pressure head, the return linkage block retracts under the action of the movable pressure head and drives the necking slider to retract and disengage from the workpiece.

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