Automatic clamping device

Abstract

The utility model provides an automatic clamping device. The automatic clamping device comprises a shell; the first driving source is assembled on the shell in a sliding mode in the axial direction; the clamping assembly is connected to the first driving source, a containing cavity used for containing the plastic part mounting part is formed in the clamping assembly, the first driving source is used for driving the clamping assembly to expand or contract in the radial direction, and the clamping assembly is used for opening and clamping the sealing ring; the second driving source is arranged on the shell and connected with the first driving source, and the second driving source is used for driving the first driving source to move in the axial direction; wherein the shell at least partially surrounds the outer side of the clamping assembly, and when the clamping assembly is opened and clamps the sealing ring, the outer side of the clamping assembly abuts against the shell. Through mutual cooperation of the first driving source, the clamping assembly, the second driving source and the shell, the sealing ring can be automatically clamped and installed on the installation part of the plastic part, and compared with the mode that the sealing ring is firstly opened manually and then the opened sealing ring is placed on the plastic part, time and labor are saved, and efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping device technical field, especially automatic clamping device. BACKGROUND

[0002] In the related art, the sealing ring is generally installed on the plastic part by manual operation, specifically, the sealing ring is first opened by manual operation, and then the opened sealing ring is placed on the plastic part, which is time-consuming and labor-consuming and has low efficiency. SUMMARY

[0003] The utility model provides a kind of automatic clamping device, to solve the problem of low efficiency of sealing ring installation in the related art.

[0004] To solve the above technical problems, the utility model provides an automatic clamping device, comprising:

[0005] A housing;

[0006] A first drive source is slidably assembled in the housing along the axial direction;

[0007] A clamping assembly is connected to the first drive source and has a receiving cavity for receiving a plastic part mounting portion, the first drive source is used to drive the clamping assembly to expand or contract radially, and the clamping assembly is used to open and clamp the sealing ring; And,

[0008] A second drive source is provided in the housing and connected to the first drive source, and the second drive source is used to drive the first drive source to move axially;

[0009] Wherein, the housing is at least partially arranged outside the clamping assembly, and the outer side of the clamping assembly abuts against the housing when the clamping assembly opens and clamps the sealing ring.

[0010] Optionally, the clamping assembly includes a plurality of clamping members connected to the first drive source, and the plurality of clamping members are distributed in a circumferential direction and form the receiving cavity, and the first drive source is used to drive the clamping members to move radially.

[0011] Optionally, the housing includes:

[0012] A base; And,

[0013] A cylindrical body is closed at one end and open at the other end, the cylindrical body is arranged outside the clamping assembly, the open end of the cylindrical body is connected to the base, the end face of the closed end is provided with a clearance hole, the clamping members pass through the clearance hole, and the clamping members can move radially in the clearance hole;

[0014] When the clamping assembly is expanded and clamps the sealing ring, the side of the clamping piece away from the accommodating cavity abuts against the inner wall of the accommodation hole.

[0015] Optionally, the accommodation hole is provided with a plurality of accommodation holes, and the plurality of clamping pieces are correspondingly arranged through the plurality of accommodation holes.

[0016] Optionally, the accommodation hole is provided with one accommodation hole, and the plurality of clamping pieces are arranged through the accommodation hole.

[0017] Optionally, the side of the clamping piece away from the accommodating cavity is provided with a limiting table, the limiting table is located in the cylinder, and the projection of the limiting table along the axial direction falls on the end face of the closed end of the cylinder.

[0018] Optionally, the cylinder and the base are detachably connected, and the clamping piece and the first driving source are detachably connected.

[0019] Optionally, the base is provided with a mounting cavity, the second driving source is assembled in the mounting cavity, and the first driving source is axially slidably assembled in the base and located in the mounting cavity.

[0020] Optionally, one of the clamping piece and the first driving source is provided with a positioning portion, and the other is provided with a positioning groove, and the positioning portion is assembled in the positioning groove.

[0021] Optionally, the clamping piece comprises:

[0022] a connecting portion connected to the first driving source; and

[0023] a clamping portion connected to the connecting portion, and the clamping portion and the connecting portion have an included angle therebetween.

[0024] Compared with the related art, the automatic clamping device has the beneficial effects that: through the cooperation between the first driving source, the clamping assembly, the second driving source and the shell, the sealing ring can be automatically clamped and installed on the mounting portion of the plastic part, which saves time and effort and is more efficient compared with the method of manually expanding the sealing ring first and then placing the expanded sealing ring on the plastic part. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or related art, the following will briefly introduce the drawings needed to be used in the embodiment or related art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0026] Figure 1 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0027] Figure 2 is Figure 1 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0028] Figure 3 is Figure 1 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0029] Figure 4 is Figure 1 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0030] Figure 5 is a sectional view of the automatic clamping device in clamping of the utility model another embodiment provides.

[0031] Figure 6 is Figure 5 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0032] Figure 7 is Figure 5 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0033] Figure 8 is Figure 5 is a structure schematic view of the automatic clamping device in clamping of the utility model one embodiment provides.

[0034] Figure 9 is a structure schematic view of the first driving source of the utility model embodiment provides.

[0035] In the drawings, various reference signs represent: 1, shell;11, base;111, installation cavity;12, cylinder;121, let go of hole;122, step;13, notch;2, first driving source;21, cylinder body;22, clamping jaw;221, positioning groove;3, clamping assembly;31, containing cavity;32, clamping piece;321, connecting part;322, clamping part;323, limit station;324, positioning part;4, second driving source;5, sealing ring;6, plastic part;61, installation part. DETAILED DESCRIPTION

[0036] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model, based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor are within the scope of protection of the utility model.

[0037] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore can not be understood as limiting the utility model.

[0038] In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple", "several" is two or more than two, unless otherwise explicitly specified.

[0039] Embodiment:

[0040] Please refer to Figures 1 to 9 The utility model embodiment provides a kind of automatic clamping device, including shell 1, first drive source 2, clamping component 3 and second drive source 4, first drive source 2 is slidably assembled in the shell 1 along the axial direction;Clamping component 3 is connected to the first drive source 2 and is internally provided with the containing cavity 31 for accommodating plastic piece 6 mounting portion 61, the first drive source 2 is used to drive the clamping component 3 along radial direction expansion or shrink, the clamping component 3 is used to prop open and clamp sealing ring 5;Second drive source 4 is arranged in the shell 1 and is connected with the first drive source 2, and the second drive source 4 is used to drive the first drive source 2 along the axial direction movement;Wherein, the shell 1 is at least partially arranged on the outside of the clamping component 3, when the clamping component 3 props open and clamps the sealing ring 5, the outside of the clamping component 3 is abutted on the shell 1.

[0041] In the process of installing the sealing ring 5 on the plastic part 6, the sealing ring 5 is first placed outside the clamping assembly 3, the first driving source 2 drives the clamping assembly 3 to expand radially, thereby supporting and clamping the sealing ring 5. Then the mounting portion 61 of the plastic part 6 is placed in the accommodating cavity 31, at this time the sealing ring 5 is sleeved outside the mounting portion 61 of the plastic part 6, the second driving source 4 drives the first driving source 2 to move away from the plastic part 6, the clamping assembly 3 is driven by the first driving source 2 to move until the sealing ring 5 abuts against the shell 1, and the sealing ring 5 will be separated from the clamping assembly 3 under the abutting of the shell 1 when the sealing ring 5 continues to move, the sealing ring 5 after being separated from the clamping assembly 3 is shrunk and fixed on the mounting portion 61 of the plastic part 6, thereby completing the installation.

[0042] Through the cooperation between the first driving source 2, the clamping assembly 3, the second driving source 4 and the shell 1, the sealing ring 5 can be automatically clamped and installed on the mounting portion 61 of the plastic part 6, compared with manually supporting the sealing ring 5 first and then placing the supported sealing ring 5 on the plastic part 6, time and labor are saved, and the efficiency is higher.

[0043] Please refer to Figure 2 , Figure 5 and Figure 6 , the clamping assembly 3 comprises a plurality of clamping pieces 32 connected to the first driving source 2, the plurality of clamping pieces 32 are distributed at equal intervals in the circumferential direction and surround to form the accommodating cavity 31, and the first driving source 2 is used to drive the clamping pieces 32 to move radially, so that the clamping assembly 3 expands or shrinks radially. When the sealing ring 5 is sleeved outside the clamping assembly 3, each clamping piece 32 cooperates to support and clamp the sealing ring 5; wherein when the sealing ring 5 is placed on the clamping assembly 3, the outer diameter of the clamping assembly 3 is equal to the inner diameter of the sealing ring 5, and when the clamping assembly 3 supports and clamps the sealing ring 5, the accommodating cavity 31 is matched with the mounting portion 61 of the plastic part 6.

[0044] It should be noted that the number of clamping pieces 32 is set according to actual needs, for example, two, three, four, five, etc.; the clamping pieces 32 can be distributed at equal intervals in the circumferential direction, or can be unevenly distributed.

[0045] Please refer to Figure 2 , Figure 6 and Figure 9In some embodiments, the first driving source 2 can be a cylinder, which comprises a cylinder body 21 and a plurality of clamping jaws 22. The cylinder body 21 is axially slidably arranged in the housing 1 and connected with the second driving source 4. The clamping jaws 22 are connected with the cylinder body 21 and can be driven by the cylinder body 21 to move radially. The clamping jaws 22 are circumferentially spaced apart, and the plurality of clamping members 32 are one-to-one connected with the plurality of clamping jaws 22. When the cylinder body 21 drives the clamping jaws 22 to move radially outward, the clamping members 32 move with the clamping jaws 22, and at this time, the clamping assembly 3 expands radially outward. When the cylinder body 21 drives the clamping jaws 22 to move radially inward, the clamping members 32 move with the clamping jaws 22, and at this time, the clamping assembly 3 contracts radially inward.

[0046] It should be noted that, as Figure 1 , Figure 2 and Figure 6 , the housing 1 is further provided with a notch 13, which is arranged opposite to the gas source interface of the cylinder, so as to facilitate the access of the gas pipe.

[0047] Of course, in other embodiments, the first driving source 2 can also be a motor, and the plurality of clamping members 32 are one-to-one connected with the plurality of motors.

[0048] Please refer to Figure 3 , Figure 5 and Figure 7 , the clamping member 32 comprises a connecting portion 321 and a clamping portion 322. The connecting portion 321 is connected with the first driving source 2, and the clamping portion 322 is connected with the connecting portion 321. The clamping portion 322 and the connecting portion 321 are arranged perpendicularly.

[0049] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 8The shell 1 comprises a base 11 and a cylinder 12, one end of the cylinder 12 is closed and the other end is open, the cylinder 12 is sleeved outside the clamping assembly 3, the open end of the cylinder 12 is connected to the base 11, the end face of the closed end is provided with a clearance hole 121, the closed end of the cylinder 12 can support the plastic part 6, and the mounting portion 61 of the plastic part 6 is convenient to extend into the containing cavity 31. The clamping piece 32 is arranged through the clearance hole 121, the sealing ring 5 is sleeved outside the clamping assembly 3, and the clamping piece 32 can move radially in the clearance hole 121, so that the clamping assembly 3 can expand or shrink radially. When the clamping assembly 3 is expanded and clamps the sealing ring 5, the side, away from the containing cavity 31, of the clamping piece 32 abuts against the inner wall of the clearance hole 121, so that the clamping piece 32 is abutted by the shell 1 when the clamping piece 32 moves away from the plastic part 6 in the direction of the first driving source 2, specifically the part of the shell 1 distributed around the clearance hole 121, so that the sealing ring 5 can be abutted by the shell 1 and separated to be mounted on the mounting portion 61 of the plastic part 6.

[0050] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 8 In some embodiments, the closed end of the cylinder 12 is further provided with a step 122, and the plastic part 6 is provided with a positioning cavity, the step 122 can be assembled in the positioning cavity, and the accurate positioning of the plastic part 6 can be realized, and the mounting portion 61 of the plastic part 6 is convenient to extend into the containing cavity 31.

[0051] In the utility model, the automatic clamping device can clamp sealing rings 5 of different sizes and shapes, such as circular sealing rings 5, rectangular sealing rings 5, sealing rings 5 with different inner diameters, etc.

[0052] Please refer to Figures 1 to 4 In some embodiments, the sealing ring 5 is rectangular. The clearance hole 121 is provided with a plurality of clearance holes 121 which are distributed at intervals in the circumferential direction, and a plurality of clamping pieces 32 are arranged through the plurality of clearance holes 121 one by one. Among them, the plurality of clearance holes 121 can be distributed on the four sides of the rectangle, so that the plurality of clamping pieces 32 can simultaneously expand the four sides of the sealing ring 5, and the uneven stress of the sealing ring 5 is avoided.

[0053] Please refer to Figure 2 and Figure 4In one specific example, two edges of the sealing ring 5 are straight, and the other two edges are arc-shaped. The clamping pieces 32 and the clearance holes 121 are both provided with four, two of the four clearance holes 121 are strip-shaped, and the other two are arc-shaped, and the shapes of the four clamping pieces 32 are matched with the shapes of the four clearance holes 121. In the radial direction, the thickness of the clamping piece 32 is smaller than the width of the clearance hole 121, so as to ensure that the clamping piece 32 can move in the radial direction in the clearance hole 121.

[0054] Referring to Figures 5 to 8 In some embodiments, the sealing ring 5 is circular. The clearance hole 121 is provided with one, and the plurality of clamping pieces 32 are collectively provided in the clearance hole 121. The plurality of clamping pieces 32 are distributed equidistantly in the circumferential direction, so that the sealing ring 5 is stressed more evenly.

[0055] Referring to Figure 5 and Figure 8 In one specific example, the clearance hole 121 is provided with one and located in the middle of the end face of the closed end of the cylinder 12, and the four clamping pieces 32 are distributed equidistantly in the circumferential direction, and the four clamping pieces 32 are all arc-shaped.

[0056] Referring to Figure 3 , Figure 5 and Figure 7 The side of the clamping piece 32 away from the accommodating cavity 31 is provided with a limiting table 323, the limiting table 323 is located in the cylinder 12, and the projection of the limiting table 323 in the axial direction falls on the end face of the closed end of the cylinder 12. When the clamping piece 32 moves a certain distance towards the plastic part 6, the limiting table 323 will abut against the closed end of the cylinder 12, preventing the clamping piece 32 from colliding with the plastic part 6, thereby limiting the upward movement distance of the clamping piece 32.

[0057] According to actual needs, in the radial direction, the thickness of one end of the clamping portion 322 connected with the connecting portion 321 is greater than the thickness of the other end of the clamping portion 322, thereby forming the limiting table 323 on the clamping portion 322.

[0058] Referring to Figure 2 and Figure 6 In some embodiments, the cylinder 12 and the base 11 are detachably connected, and the clamping piece 32 and the first driving source 2 are detachably connected, so that the cylinder 12 and the clamping piece 32 can be matched with sealing rings 5 of different size specifications and different shapes, and plastic parts 6 with different size specifications and different shape mounting portions 61, thereby improving the application range of the automatic clamping device; and thereby the same base 11, first driving source 2 and second driving source 4 can be shared, thereby greatly reducing the cost. The cylinder 12 and the base 11, and the clamping piece 32 and the first driving source 2 can be connected by screws.

[0059] Of course, in other embodiments, the connection between the barrel 12 and the base 11, and between the clamping member 32 and the first driving source 2, can also be fixed.

[0060] Referring to Figure 2 and Figure 6 , the base 11 is provided with a mounting cavity 111, the second driving source 4 is assembled in the mounting cavity 111, and the first driving source 2 is assembled in the base 11 in the axial direction and located in the mounting cavity 111. The mounting cavity 111 can guide the sliding of the first driving source 2 and improve the sliding stability of the first driving source 2. Moreover, the first driving source 2 is located in the mounting cavity 111, the second driving source 4 is located in the mounting cavity 111 and the barrel 12 respectively, and the clamping assembly 3 is partially located in the barrel 12, so that the shell 1 can protect the first driving source 2, the second driving source 4 and the clamping assembly 3.

[0061] According to actual needs, the second driving source 4 can be a pneumatic cylinder or an electric motor.

[0062] Referring to Figure 3 , Figure 7 and Figure 9 , one of the clamping member 32 and the first driving source 2 is provided with a positioning part 324, and the other is provided with a positioning groove 221, the positioning part 324 is assembled in the positioning groove 221, and the positioning part 324 and the positioning groove 221 cooperate with each other to realize quick and accurate assembly between the clamping member 32 and the first driving source 2.

[0063] Referring to Figure 3 , Figure 7 and Figure 9 , in a specific example, the clamping member 32 is provided with a positioning part 324 near the side close to the first driving source 2, and the first driving source 2 is provided with a positioning groove 221 on the clamping jaw 22.

[0064] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic clamping device characterized by comprising: The application relates to a sealing ring clamping device. The sealing ring clamping device comprises a housing, a first driving source slidably arranged in the housing, a clamping assembly connected to the first driving source and internally provided with a containing cavity for containing a plastic part mounting portion, the first driving source being used for driving the clamping assembly to expand or contract in the radial direction, and the clamping assembly being used for supporting and clamping a sealing ring, and a second driving source arranged in the housing and connected to the first driving source, the second driving source being used for driving the first driving source to move in the axial direction. The housing is arranged at least partially around the outer side of the clamping assembly, and the outer side of the clamping assembly abuts against the housing when the clamping assembly supports and clamps the sealing ring. The clamping assembly comprises a plurality of clamping pieces connected to the first driving source, the clamping pieces being distributed in the circumferential direction and surrounding the containing cavity. The housing comprises a base and a cylinder. The cylinder is arranged around the outer side of the clamping assembly, the open end of the cylinder is connected to the base, the end face of the closed end of the cylinder is provided with a clearance hole, the clamping pieces pass through the clearance hole, and the clamping pieces can move in the radial direction in the clearance hole.

2. The automatic clamping device according to claim 1, characterized in that When the clamping assembly supports and clamps the sealing ring, the side of the clamping piece away from the containing cavity abuts against the inner wall of the clearance hole.

3. The automatic clamping device according to claim 2, characterized in that The clearance hole is provided with a plurality of clearance holes, the clearance holes are distributed in the circumferential direction, and the clamping pieces pass through the clearance holes one by one. The clearance hole is provided with one clearance hole, and the clamping pieces pass through the clearance hole. The side of the clamping piece away from the containing cavity is provided with a limiting table, the limiting table is located in the cylinder, and the axial projection of the limiting table falls on the end face of the closed end of the cylinder. The cylinder and the base are detachably connected, and the clamping piece and the first driving source are detachably connected.

4. The automatic clamping device according to claim 3, characterized in that The base is provided with a mounting cavity, the second driving source is arranged in the mounting cavity, the first driving source is slidably arranged in the base and located in the mounting cavity in the axial direction.

5. The automatic clamping device according to claim 3, characterized in that, One of the clamping piece and the first driving source is provided with a positioning portion, and the other is provided with a positioning groove.

6. The automatic clamping device according to claim 3, characterized in that, The clamping piece comprises a connecting portion connected to the first driving source and a clamping portion connected to the connecting portion and having an included angle with the connecting portion.

7. The automatic clamping device according to claim 3, characterized in that, ​ 8. The automatic clamping device according to claim 3, characterized in that ​ 9. The automatic clamping device according to claim 2, characterized in that, ​ 10. The automatic clamping device according to claim 2, characterized in that, ​ ​ ​

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