Spin riveting tool

Abstract

The utility model relates to the technical field of machining discloses a kind of spin riveting tool, including base, clamping assembly, first elastic member and adjusting part. Clamping assembly has riveting surface, first elastic member is connected with base and clamping assembly, and first elastic member is elastically deformed along first direction, and first direction is perpendicular to riveting surface. Adjusting part is connected with base, and the part of adjusting part protruding from base forms adjusting section, clamping assembly is connected with adjusting section, and clamping assembly can move along first direction relative to adjusting section. In working process, the pressure that workpiece is received is too large or too small due to the size deviation between workpiece, can be driven clamping assembly to move by the elastic deformation of elastic member, adjust the distance between workpiece and riveting head, to compensate the size deviation of workpiece, realize self-adapting adjustment, avoid the problem that riveting pressure is too large or too small, improve spin riveting quality.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a riveting fixture. Background Technology

[0002] Slip riveting achieves a tight connection of materials through a combination of rotation and axial pressure, offering advantages such as high efficiency, environmental friendliness, and aesthetic appeal, and is widely used in machinery manufacturing, the automotive industry, and other fields. In related technologies, slip riveting is typically rigid, with a fixed riveting pressure. The quality of the riveted product mainly depends on the distance between the rivet head and the workpiece. However, due to dimensional deviations between riveted products, and the fixed distance between the riveting seat and the rivet head, it is difficult to accommodate dimensional fluctuations. When the product size is large, excessive riveting pressure can leave indentations or cause cracks on the product surface, and can also lead to residual stress at the riveting joint, making the product more prone to fatigue fracture starting from the riveting point under vibration. When the product size is small, insufficient riveting pressure cannot form a rivet head of sufficient size, significantly increasing the product defect rate, especially in the production of small parts with precise structures and high requirements for riveting quality. Utility Model Content

[0003] The purpose of this invention is to provide a riveting fixture to reduce the impact of dimensional deviations of the workpiece on the quality of riveting.

[0004] To achieve the above objectives, this utility model provides a riveting fixture, comprising: Base; A clamping assembly having a riveting surface; A first elastic element is connected to both the base and the clamping assembly. The first elastic element is elastically deformable along a first direction, which is perpendicular to the riveting surface. An adjusting member is connected to the base, and a portion of the adjusting member protruding from the base forms an adjusting section. A clamping assembly is connected to the adjusting section and is movable relative to the adjusting section in a first direction.

[0005] According to one embodiment of the present invention, there are at least two first elastic elements, which are arranged in an array at the bottom of the clamping assembly.

[0006] According to one embodiment of the present invention, a guide post extending along a first direction is further included. One end of the guide post is connected to the base, and the other end passes through the clamping assembly. The clamping assembly is slidable along the guide post.

[0007] According to one embodiment of the present invention, the adjusting member is a bolt, which passes through the clamping assembly and is connected to the base.

[0008] According to one embodiment of the present invention, the clamping assembly includes a base and a pressure block. The base and the pressure block are detachably connected. The base has a first fixing groove on the side facing the pressure block, and the pressure block has a second fixing groove on the side facing the base. The first fixing groove and the second fixing groove are combined to form a workpiece fixing channel. One end of the workpiece fixing channel is connected to the riveting surface.

[0009] According to one embodiment of the present invention, the base is provided with a limiting post extending in a second direction, the second direction being perpendicular to the first direction. The pressure block is sleeved on the limiting post and can slide along the limiting post so that the second fixing groove approaches or moves away from the first fixing groove.

[0010] According to one embodiment of the present invention, the clamping assembly further includes a second elastic member, the two ends of which are respectively connected to the base and the pressure block, and the second elastic member is capable of elastic deformation along the second direction.

[0011] According to one embodiment of the present invention, the clamping assembly further includes a driving member, which is connected to the base, and the telescopic end of the driving member is connected to the pressure block.

[0012] According to one embodiment of the present invention, the first elastic element is a spring, the base is provided with a first storage groove on the side facing the base, the first elastic element is disposed in the first storage groove, and the first elastic element protrudes from the first storage groove in the normal state, and the two ends of the first elastic element abut against the bottom of the first storage groove and the base respectively.

[0013] According to one embodiment of the present invention, the base includes a mounting seat, a connecting block, a first adjusting bolt, and a second adjusting bolt. The mounting seat has a mounting groove, and the connecting block is disposed in the mounting groove. The first elastic member and the adjusting member are both connected to the connecting block, and the first elastic member protrudes from the connecting block in its normal state. Both the first adjusting bolt and the second adjusting bolt are connected to the mounting base, and one end of the first adjusting bolt and the second adjusting bolt are respectively connected to the connecting block. The first adjusting bolt can move relative to the mounting base in a second direction, and the second adjusting bolt can move relative to the mounting base in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0014] Compared with the prior art, the riveting fixture of this utility model has the following advantages: The riveting fixture of this embodiment connects a clamping assembly to the adjusting section of an adjusting member, and the clamping assembly can move relative to the adjusting section along a first direction. An elastic element capable of elastic deformation along the first direction is provided between the clamping assembly and the base. Therefore, during operation, if the pressure on the workpiece is too high or too low due to dimensional deviations between workpieces, the elastic deformation of the elastic element drives the clamping assembly to move, adjusting the distance between the workpiece and the riveting head to compensate for the dimensional deviations, achieving adaptive adjustment, avoiding excessive or insufficient riveting pressure, and improving riveting quality. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of the riveting fixture provided in the embodiments of this utility model.

[0016] Figure 2 This is a partial structural schematic diagram of the riveting fixture provided in this embodiment of the utility model.

[0017] Figure 3 This is the second structural schematic diagram of the riveting fixture provided in this embodiment of the utility model.

[0018] Figure 4 This is an exploded view of the riveting fixture provided in this embodiment of the utility model.

[0019] Figure 5 This is a cross-sectional view of the riveting fixture provided in this embodiment of the utility model.

[0020] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0021] Figure label: 110. Base; 111. Mounting base; 112. Mounting slot; 113. Connecting block; 114. Second storage slot; 115. First adjusting bolt; 116. Second adjusting bolt; 120. Clamping assembly; 121. Riveting surface; 122. Base; 1221. First fixing groove; 1222. Limiting post; 123. Pressure block; 124. Second elastic element; 125. Driving element; 126. First storage groove; 127. Fixing plate; 130. First elastic element; 140. Adjusting element; 150. Guide post; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] In the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] like Figure 1 and Figure 4 As shown, a riveting fixture according to an embodiment of the present invention includes a base 110, a clamping assembly 120, a first elastic element 130, and an adjusting element 140.

[0027] Specifically, the clamping assembly 120 has a riveting surface 121. A first elastic member 130 is connected to both the base 110 and the clamping assembly 120. The first elastic member 130 is elastically deformable along a first direction X, which is perpendicular to the riveting surface 121. An adjusting member 140 is connected to the base 110, and the portion of the adjusting member 140 protruding from the base 110 forms an adjusting section. The clamping assembly 120 is connected to the adjusting section, and the clamping assembly 120 is movable relative to the adjusting section along the first direction X.

[0028] During the riveting process, the part of the workpiece to be riveted is placed on the riveting surface 121. The riveting head applies pressure perpendicular to the riveting surface 121 to the workpiece, causing deformation and riveting. Since the clamping assembly 120 can move along the adjustment section, under the action of the first elastic element 130 and the riveting head, the clamping assembly 120 moves along the adjustment section and drives the riveting part of the workpiece to move along the first direction X to move closer to or away from the riveting head. The elastic element is disposed between the clamping assembly 120 and the base 110. Therefore, when the size of the workpiece to be riveted deviates from the preset size, the pressure applied by the riveting head to the riveting surface 121 also changes, and the compression of the first elastic element 130 changes accordingly. The pressure applied by the riveting head and the change in the elastic force of the first elastic element 130 drive the clamping assembly 120 to move along the adjustment section. Thus, during the riveting process, through the adjusting member 140 and the elastic member, the clamping assembly 120 can float within a certain range in the first direction X, and move the workpiece away from or closer to the riveting head to adjust the pressure on the workpiece, compensate for dimensional deviations, avoid excessive or insufficient riveting pressure, improve riveting quality, and increase yield. Figure 4 As shown, in some embodiments of this application, there are at least two first elastic members 130, which are arranged in an array at the bottom of the clamping assembly 120 to improve the stability of the clamping assembly 120. For example, in Figure 4 In the example, there are four elastic elements, which are arranged in an array at the bottom of the clamping assembly 120.

[0029] According to the riveting fixture of this application embodiment, the clamping assembly 120 is connected to the adjusting section of the adjusting member 140, and the clamping assembly 120 can move relative to the adjusting section along the first direction X; an elastic member capable of elastic deformation along the first direction X is provided between the clamping assembly 120 and the base 110. Therefore, during operation, if the pressure on the workpiece is too high or too low due to dimensional deviations between workpieces, the clamping assembly 120 can be moved by the elastic deformation of the elastic member to adjust the distance between the workpiece and the riveting head, thereby compensating for the dimensional deviations of the workpiece, achieving adaptive adjustment, avoiding problems of excessive or insufficient riveting pressure, and improving the riveting quality.

[0030] like Figure 5 As shown, according to some embodiments of this application, the riveting fixture further includes a guide post 150 extending along a first direction X. One end of the guide post 150 is connected to the base 110, and the other end passes through the clamping assembly 120, which is slidable along the guide post 150. Specifically, one end of the guide post 150 can be threadedly connected to the base 110, and the other end can be a smooth rod inserted into the clamping assembly 120. The clamping assembly 120 can be positioned relative to the base 110 via the guide post 150, and the guide post 150 can guide the movement of the clamping assembly 120 as it moves along the first direction X, making the movement of the clamping assembly 120 more stable.

[0031] like Figure 1 and Figure 3 As shown, according to some embodiments of this application, the clamping assembly 120 includes a base 122 and a pressure block 123. The base 122 and the pressure block 123 are detachably connected. The base 122 has a first fixing groove 1221 on the side facing the pressure block 123, and the pressure block 123 has a second fixing groove on the side facing the base 122. The first fixing groove 1221 and the second fixing groove are symmetrical to each other. The first fixing groove 1221 and the second fixing groove can be joined together to form a workpiece fixing channel. One end of the workpiece fixing channel is connected to the riveting surface 121. The workpiece fixing channel is used to fix the workpiece for riveting.

[0032] like Figure 2 and Figure 3 As shown, according to some embodiments of this application, the base 122 is provided with a limiting post 1222 extending along a second direction Y, which is perpendicular to the first direction X. A pressure block 123 is sleeved on the limiting post 1222 and can slide along the limiting post 1222 to bring the second fixing groove closer to or further away from the first fixing groove 1221. When installing or removing a workpiece, the pressure block 123 moves along the limiting post 1222 to engage or disengage the second fixing groove from the first fixing groove 1221, thereby clamping the workpiece or exposing it. This operation is convenient, saves the step of aligning the pressure block 123 with the base 122, and improves riveting efficiency. There can be at least two limiting posts 1222 to restrict relative rotation between the pressure block 123 and the base 122. When it is necessary to clamp the workpiece, the pressure block 123 can be fixed to the base 122 with screws after engagement. In some embodiments, the clamping assembly 120 further includes a second elastic element 124, with its two ends connected to the base 122 and the pressure block 123, respectively. The second elastic element 124 is capable of elastic deformation along the second direction Y to provide a buffering effect, preventing the pressure block 123 and the base 122 from excessively compressing the workpiece and causing deformation. After the pressure block 123 and the base 122 are joined under external force, the second elastic element 124 is compressed to generate elastic force. When the external force is removed, the second elastic element 124 can drive the pressure block 123 away from the base 122, exposing the workpiece and facilitating workpiece disassembly by the operator. Figure 2 As shown, the second elastic element 124 can be a spring, and the second elastic element 124 can be sleeved on the limiting post 1222.

[0033] like Figure 3As shown, according to some embodiments of this application, the clamping assembly 120 further includes a driving member 125, which is connected to the base 122. The telescopic end of the driving member 125 is connected to the pressure block 123. The telescopic end of the driving member 125 can extend or shorten along the second direction Y. By extending or shortening the telescopic end of the driving member 125, the pressure block 123 is driven to slide along the limiting post 1222. After the pressure block 123 and the base 122 are assembled, the telescopic end of the driving member 125 maintains a constant length, fixing the pressure block 123 and the base 122 to clamp the workpiece. The driving member 125 can be a cylinder or an electric telescopic rod.

[0034] like Figure 2 and Figure 4 As shown, according to some embodiments of this application, the base 110 includes a mounting base 111, a connecting block 113, a first adjusting bolt 115, and a second adjusting bolt 116. The mounting base 111 is provided with a mounting groove 112, and the connecting block 113 is disposed in the mounting groove 112. The connecting block 113 can move within the mounting groove 112. A first elastic member 130 and an adjusting member 140 are both connected to the connecting block 113, and the first elastic member 130 protrudes from the connecting block in the normal state. The first adjusting bolt 115 and the second adjusting bolt 116 are both connected to the mounting base 111, and one end of the first adjusting bolt 115 and the second adjusting bolt 116 are respectively connected to the connecting block 113. The first adjusting bolt 115 can move relative to the mounting base 111 along the second direction Y, and the second adjusting bolt 116 can move relative to the mounting base 111 along the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Specifically, there are two first adjusting bolts 115, located on both sides of the mounting groove 112 in the second direction Y. One end of the first adjusting bolt 115 is located inside the mounting groove 112 and abuts against the connecting block 113. There are two second adjusting bolts 116, located on both sides of the mounting groove 112 in the third direction Z. One end of the second adjusting bolt 116 is located inside the mounting groove 112 and abuts against the connecting block 113. By turning the first adjusting bolts 115, the connecting block 113 is slightly moved in the second direction Y to adjust its position. By turning the second adjusting bolts, the connecting block 113 is slightly moved in the third direction Z to adjust its position, thereby adjusting the position of the clamped workpiece so that the position of the workpiece corresponds to the position of the rivet head, improving the machining accuracy.

[0035] According to some embodiments of this application, the adjusting member 140 is a bolt, which passes through the clamping assembly 120 and is connected to the base 110. One end of the adjusting member 140 is threaded to the base 110, and the other end protrudes from the base 110 to form an adjusting section. The adjusting section passes through the clamping assembly 120, and the length of the adjusting section can be adjusted by tightening the bolt, thereby adjusting the movable range of the clamping assembly 120 in the first direction X. Figure 5 and Figure 6As shown, in some embodiments, the first elastic element 130 is a spring, and the first elastic element 130 can be sleeved on the adjusting element 140. The base 122 has a first storage groove 126 on the side facing the base 110, the opening of the first storage groove 126 faces the base 110, the first elastic element 130 is disposed in the first storage groove 126, and the first elastic element 130 protrudes from the first storage groove 126 in the normal state. The width of the first storage groove 126 is adapted to the first elastic element 130, and the first elastic element 130 can contact the inside of the first storage groove 126 to fix the first elastic element 130. The two ends of the first elastic element 130 abut against the bottom of the first storage groove 126 and the base 110, respectively. The connecting block 113 may be provided with a second storage groove 114 corresponding to the first storage groove 126. The opening of the second storage groove 114 faces the base 122. One end of the first elastic member 130 is located in the first storage groove 126 and abuts against the bottom of the first storage groove 126, and the other end is located in the second storage groove 114 and abuts against the bottom of the second storage groove 114. The adjusting member 140 may pass through the first storage groove 126 and the second storage groove 114, and the first elastic member 130 may be sleeved on the adjusting member 140 to fix the first elastic member 130.

[0036] In summary, this utility model embodiment provides a riveting fixture, which allows the clamping assembly 120 to float within a certain range in the first direction X via a first elastic element 130 and an adjusting element 140. Therefore, during the riveting process, when there is a dimensional deviation in the workpiece, the clamping assembly 120 moves in the first direction X through the extension and retraction of the first elastic element 130, thereby moving the workpiece in the first direction X to compensate for the dimensional deviation. When the workpiece size is too large, the distance between the workpiece and the rivet head is too small, and the first elastic element 130 is compressed. The pressure applied by the rivet head is converted into the elastic potential energy of the first elastic element 130, preventing the workpiece from being excessively squeezed. When the workpiece size is too small, the distance between the workpiece and the rivet head is too large, and the first elastic element 130 extends, pushing the clamping assembly 120 closer to the rivet head, bringing the workpiece closer to the rivet head.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit it. It should be pointed out that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A riveting fixture, characterized in that, include: Base (110); A clamping assembly (120) having a riveting surface (121). The first elastic element (130) is connected to both the base (110) and the clamping assembly (120). The first elastic element (130) is elastically deformable along a first direction (X), which is perpendicular to the riveting surface (121). An adjusting member (140) is connected to the base (110). The portion of the adjusting member (140) protruding from the base (110) forms an adjusting section. A clamping assembly (120) is connected to the adjusting section and is movable relative to the adjusting section in a first direction (X).

2. The riveting fixture according to claim 1, characterized in that, There are at least two first elastic elements (130), which are arranged in an array at the bottom of the clamping assembly (120).

3. The riveting fixture according to claim 1, characterized in that, It also includes a guide post (150) extending along a first direction (X), one end of which is connected to the base (110) and the other end is inserted through the clamping assembly (120), which is slidable along the guide post (150).

4. The riveting fixture according to claim 1, characterized in that, The adjusting member (140) is a bolt, which passes through the clamping assembly (120) and is connected to the base (110).

5. The riveting fixture according to claim 1, characterized in that, The clamping assembly (120) includes a base (122) and a pressure block (123). The base (122) and the pressure block (123) are detachably connected. The base (122) has a first fixing groove (1221) on the side facing the pressure block (123), and the pressure block (123) has a second fixing groove on the side facing the base (122). The first fixing groove (1221) and the second fixing groove are combined to form a workpiece fixing channel. One end of the workpiece fixing channel is connected to the riveting surface (121).

6. The riveting fixture according to claim 5, characterized in that, The base (122) is provided with a limiting post (1222) extending along the second direction (Y), the second direction (Y) being perpendicular to the first direction (X). The pressure block (123) is sleeved on the limiting post (1222) and can slide along the limiting post (1222) so that the second fixing groove is close to or away from the first fixing groove (1221).

7. The riveting fixture according to claim 6, characterized in that, The clamping assembly (120) further includes a second elastic element (124), the two ends of which are connected to the base (122) and the pressure block (123) respectively, and the second elastic element (124) is capable of elastic deformation along the second direction (Y).

8. The riveting fixture according to claim 5, characterized in that, The clamping assembly (120) further includes a drive member (125), which is connected to the base (122), and the telescopic end of the drive member (125) is connected to the pressure block (123).

9. The riveting fixture according to claim 5, characterized in that, The first elastic element (130) is a spring. The base (122) has a first storage groove (126) on the side facing the base (110). The first elastic element (130) is located in the first storage groove (126), and the first elastic element (130) protrudes from the first storage groove (126) under normal conditions. The two ends of the first elastic element (130) abut against the bottom of the first storage groove (126) and the base (110) respectively.

10. The riveting fixture according to claim 1, characterized in that, The base (110) includes a mounting seat (111), a connecting block (113), a first adjusting bolt (115), and a second adjusting bolt (116). The mounting seat (111) is provided with a mounting groove (112), and the connecting block (113) is disposed in the mounting groove (112). The first elastic member (130) and the adjusting member (140) are both connected to the connecting block (113), and the first elastic member (130) protrudes from the connecting block (113) under normal conditions. The first adjusting bolt (115) and the second adjusting bolt (116) are both connected to the mounting base (111), and one end of the first adjusting bolt (115) and the second adjusting bolt (116) are respectively connected to the connecting block (113). The first adjusting bolt (115) can move relative to the mounting base (111) along the second direction (Y), and the second adjusting bolt (116) can move relative to the mounting base (111) along the third direction (Z). The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.

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