A dental riveting pliers

Abstract

The utility model relates to a kind of dog riveting pliers, by detachable jaw design and modular connection structure, realize the quick replacement jaw to adapt to multiple workpiece specifications.Pincer body adopts split shell, sliding slot guide and gear transmission mechanism, improve overall rigidity and operating stability.Jaw inside is provided with anti-slip boss and mounting groove, effectively prevent workpiece displacement during riveting process.It has the advantages of strong versatility, labor-saving operation, convenient replacement, significantly improves work efficiency and reduces tool cost.

Description

Technical Field

[0001] This utility model relates to the field of stamping and riveting auxiliary tools, specifically to a toothed riveting pliers. Background Technology

[0002] Currently, most riveting pliers on the market have a significant limitation: their riveting head structure is usually fixed, only suitable for specific sizes of rivets or clips. This design limitation greatly restricts the practical application range of riveting pliers, causing users to often need to prepare multiple tools when facing diverse riveting tasks. This not only increases equipment costs but also reduces work efficiency, making it difficult to adapt to flexible and ever-changing operational needs. Utility Model Content

[0003] This invention provides a snap-fit ​​pliers to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0005] A snap-fitting pliers includes a clamp assembly and a drive mechanism, wherein the drive mechanism is pulsatorically connected to the clamp assembly. The clamp assembly includes a housing and a pair of jaws for clamping workpieces; a mounting base is provided on the clamp assembly; the jaws are detachably mounted on the mounting base via a connector; by replacing the jaws with different clamping working surface structures, the pliers can adapt to and rivet workpieces of different specifications.

[0006] The advantages of this utility model over the prior art are as follows:

[0007] This invention significantly improves the versatility and practicality of riveting pliers through its detachable gripper design. Different grippers can be quickly replaced to adapt to riveting tasks involving various specifications of steel buckles, effectively reducing tool costs. Its split-shell housing, auxiliary plate support, and sliding guide structure enhance overall rigidity and resistance to lateral forces, improving riveting accuracy and consistency. The anti-slip protrusions on the inner side of the grippers, in conjunction with the mounting groove, prevent workpiece displacement, ensuring operational safety and quality. Combined with a long handle lever and a labor-saving gear transmission mechanism, it greatly reduces operational intensity and improves work efficiency. The modular connection and maintenance design further enhances the flexibility and convenience of use. Attached Figure Description

[0008] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0009] Figure 1 A perspective view of an embodiment of this utility model;

[0010] Figure 2 for Figure 1 The schematic diagram of the split-type shell design in the embodiment shown is shown.

[0011] Figure 3 for Figure 1 A schematic diagram of the connection between the fixing block and the gripper in the embodiment shown;

[0012] Figure 4 for Figure 3 A schematic diagram of the gripper structure in the embodiment shown;

[0013] Figure 5 for Figure 1 A schematic diagram of the punch holder in the embodiment shown;

[0014] Figure 6 for Figure 5 A cross-sectional schematic diagram of the punch holder in the illustrated embodiment;

[0015] Figure 7 for Figure 1 A schematic diagram of the connection between the punch holder and the central slider in the embodiment shown;

[0016] Figure 8 for Figure 1 A schematic diagram of the connection between the center slider and the tensioner in the embodiment shown;

[0017] Figure 9 for Figure 1 A schematic diagram showing the connection between the tensioner and the handle in the embodiment shown.

[0018] Reference numerals: 1. Toothed riveting pliers; 2. Steel buckle; pliers assembly; 3. Tensioner; 4. Housing; 5. Receiving space; 6. Rivet; 7. Fixing block; 8. Gripper mounting base; 9. Column; 100. Gripper; 101. Threaded hole; 102. Bolt; 103. Mounting groove; 114. Anti-slip protrusion; 115. Punch seat; 116. Auxiliary plate; 117. Positioning part; 118. Channel; 119. Auxiliary punch compression spring; 120. First limiting protrusion (117); auxiliary punch (118); second limiting protrusion (119); first locking part (120); center slider (121); first gear structure (122); second locking part (123); through hole (124); locking post (125); extension block (126); slide groove (127); pivot (128); fixing groove (129); second gear structure (201); rotation limiting groove (202); handle (203); anti-slip sleeve (204); anti-slip texture (205); threaded post (206); mounting hole (207). Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0022] like Figure 1 and Figure 2 As shown, a snap-fit ​​pliers 1 is specifically designed for stamping and riveting steel strap buckles 2. Its main structure includes a pliers assembly 100 located at the top and a drive mechanism. The drive mechanism includes tensioners 200 symmetrically arranged on both sides. The pliers assembly 100 includes a housing 101 with a split-shell design, which facilitates the installation and maintenance of internal parts and enhances overall structural stability. The housing 101 contains a receiving space 102 (see [reference]). Figure 2 One end of the device has a fixing block 104 fixedly mounted on each of its two sides by rivets 103. Each fixing block 104 extends outward to form a claw mounting base 105 (see...). Figure 3In addition, the fixing block 104 has a post 106 at the end away from the gripper mounting base 105 (see...). Figure 3 The column 106, when engaged with the tensioner 200, serves to transmit motion and limit the range of rotation, ensuring the stability and controllability of the tensioning process. In other embodiments (not shown in the figures), the fixing block 104 can also be installed into the receiving space 102 of the housing 101 using a snap-fit ​​structure, magnetic structure, or tenon and mortise structure. Such alternative fixing methods provide greater flexibility and convenience for the installation and replacement of the fixing block 104 in different application scenarios, further enriching the structural design and applicability of the tool.

[0023] For details, see Figure 3 In this embodiment, the gripper mounting seats 105 on both fixing blocks 104 are detachably mounted with grippers 107 for holding workpieces via a connector. The connector is preferably a bolt 109. Specifically, the gripper mounting seat 105 has a pre-drilled threaded hole 108. The grippers 107 of the toothed riveting pliers 1 are detachably mounted via the threaded holes 108 on the fixing blocks 104 and the grippers 107, using bolts 109. Each gripper 107 is machined with a fixing groove 129 that fits the shape of the gripper mounting seat 105. During installation, the gripper mounting seat 105 on the fixing block 104 is first inserted into the fixing groove 129 of the gripper 107. After aligning with the threaded hole 108, the bolt 109 is screwed in, passing through the threaded hole 108 on the gripper 107 and then screwed into the threaded hole 108 of the gripper mounting seat 105 for tightening. This connection method is stable and reliable. When it is necessary to replace the gripper 107, the operation is extremely simple. Simply loosen the bolt 109 in the reverse direction to disengage it from the gripper mounting base 105 and the threaded hole 108 of the gripper 107, thus releasing the fixation and allowing the gripper 107 to be removed and replaced. This modular design, relying on the connection via the threaded hole 108, is the core of enabling rapid replacement of the gripper 107. It allows users to flexibly select different models of grippers 107 according to processing requirements, making one riveting pliers applicable to riveting operations of various specifications of steel buckles 2. Furthermore, by replacing the grippers 107 with different clamping surface structures, the riveting pliers 1 can adapt to and rivet workpieces of different specifications, greatly expanding the tool's application range and adapting to diverse production tasks. It also avoids the cost of repeatedly purchasing special tools for different buckle types, improving work efficiency and bringing significant economic benefits. In other embodiments (not shown in the figures), the fixing block 104 may not have the gripper mounting base 105. Instead, detachable installation can be achieved by using alternative connection methods such as snap-fit ​​structures or magnetic structures on the fixing block 104 and the gripper 107. This design further enriches the assembly options for the gripper 107, not only improving the convenience of replacement operations but also providing greater design flexibility to adapt to different work scenarios or user preferences, thus helping to enhance the overall applicability of the tool and the user experience.

[0024] For details, see Figure 4 In this embodiment, each gripper 107 has a dedicated mounting groove 110 on its working surface, and anti-slip protrusions 111 extend from the inner sides of the two grippers 107. These anti-slip protrusions 111 are also machined with anti-slip textures 205, such as grooves. The mounting groove 110 is used for precise positioning and support of the steel buckle 2, while the protrusions with anti-slip textures not only position the steel buckle 2 but also effectively increase friction, preventing slippage during operation. Through the synergistic effect of the mounting groove 110 and the anti-slip protrusions 111, the steel buckle 2 is securely and stably installed and clamped within the grippers 107. This design significantly enhances the reliability of clamping, effectively preventing the steel buckle 2 from shifting or falling off during riveting, thereby ensuring uniform riveting quality and improving operational safety and efficiency.

[0025] See Figure 5 In this embodiment, the internal accommodating space 102 of the housing 101 (see...) Figure 2 In this design, a punch seat 112 is installed at the position of the fixed block 104. Specifically, the punch seat 112 is installed between the two fixed blocks 104, forming the core execution structure for the riveting action. An auxiliary plate 113 is threadedly connected to the top of the punch seat 112. The two sides of the auxiliary plate 113 are tightly abutted against the left and right fixed blocks 104, forming a stable support structure. At the end of the auxiliary plate 113 near the gripper 107, there is a positioning part 114 specifically for positioning. The auxiliary plate 113, through its sidewall abutting against the fixed block 104, significantly enhances the lateral stability of the punch seat 112, effectively resisting the lateral force generated during the stamping process and preventing the overall structure from shaking or misaligning. The positioning part 114 at the end near the gripper 107 can precisely limit the steel buckle 2 in actual operation, ensuring that the steel buckle 2 can be quickly and accurately placed in the same ideal position each time riveting is performed. This structural design ensures the stability and reliability of the punch holder 112 during high-speed stamping through multi-point rigid connections. On the other hand, it significantly improves the consistency of riveting operations and product quality through precise positioning, thereby significantly improving riveting accuracy, reducing operational difficulty, and reducing scrap rate caused by positional deviation, ultimately improving overall operational efficiency.

[0026] like Figure 6As shown, a vertical through-channel 115 is provided inside the punch holder 112, through which an auxiliary punch compression spring 116 is installed. A first limiting protrusion 117 is provided at the end of the channel 115 near the gripper 107. An auxiliary punch 118 is directly abutted and installed at the end of the auxiliary punch compression spring 116 near this protrusion. The auxiliary punch 118 has a corresponding second limiting protrusion 119 that cooperates with the first limiting protrusion 117. Under the elastic action of the auxiliary punch compression spring 116, the auxiliary punch 118 is always subjected to a pushing force towards the gripper 107, maintaining its outward extension tendency. The first limiting protrusion 117 and the second limiting protrusion 119 on the auxiliary punch 118 cooperate to form a mechanical limiting mechanism, precisely limiting the maximum outward extension stroke of the auxiliary punch 118. This design ensures that the auxiliary punch 118 can always provide a stable initial clamping force during operation and plays a buffering and assisting role during the stamping process. The first limiting protrusion 117 and the second limiting protrusion 119 ensure the reliability and consistency of the action, effectively preventing the auxiliary punch 118 from extending excessively or falling out of the channel 115, thereby improving the stability of the riveting quality and the safety of the operation.

[0027] like Figure 7 As shown, a first engaging portion 120 is provided at the end of the punch holder 112 away from the auxiliary punch 118, and a central slider 121 is mounted on the punch holder 112 through the first engaging portion 120. The other end of the auxiliary punch compression spring 116 away from the first limiting protrusion 117 abuts against the central slider 121, and the elastic force of the auxiliary punch compression spring 116 acts directly on the central slider 121, providing a stable preload source for the auxiliary punch 118. First gear structures 122 are symmetrically arranged on both sides of the central slider 121, a design that enables power transmission with the tensioner 200. At the end of the central slider 121 near the punch holder 112, a second engaging portion 123 is provided, which cooperates with the first engaging portion 120, and a through hole 124 is provided at the relative position of the first engaging portion 120 and the second engaging portion 123. When the first locking part 120 and the second locking part 123 are aligned and engaged, the through hole 124 at their relative positions can be inserted into the locking post 125 for fixation, forming a firm and reliable connection. The engagement design of the through hole 124 and the locking post 125 mainly ensures the connection rigidity and positioning accuracy between the punch seat 112 and the central slider 121, effectively guaranteeing the stability of power transmission and the accuracy of riveting action during the stamping process.

[0028] For details, see Figure 7 In this embodiment, the upper and lower sidewalls of the central slider 121 extend outward to form extension blocks 126, while the upper and lower parts of the housing 101 are respectively provided with grooves 127 at the center line position (see Figure 1When the central slider 121 is installed inside the housing 101, its extension block 126 can be embedded in the sliding groove 127 of the housing 101 to form a sliding fit, allowing the central slider 121 to move stably back and forth along the sliding groove 127. The sliding of the central slider 121 can push the auxiliary punch compression spring 116 in the punch seat 112, thereby controlling the extension and retraction of the auxiliary punch 118, and finally completing the stamping and riveting action of the steel buckle 2. This sliding connection mechanism not only provides precise guidance for the central slider 121, ensuring the straightness and stability of its movement trajectory, but also effectively withstands the lateral force generated during the stamping process, ensuring the reliability of power transmission and the uniformity of riveting quality.

[0029] For details, see Figure 8 In this embodiment, at the end of the housing 101 away from the gripper 107, pivots 128 are symmetrically arranged on opposite sides. The tensioner 200 is pivotally mounted on the housing 101 via these pivots 128. At the end of the tensioner 200 near the housing 101, a second gear structure 201 and a rotation limiting groove 202 are provided. When the tensioner 200 is installed in place, the second gear structure 201 on the tensioner 200 meshes with the first gear structures 122 on both sides of the central slider 121; simultaneously, the column 106 on the fixing block 104 is precisely engaged in the rotation limiting groove 202 of the tensioner 200. During operation, rotating the tensioner 200 converts its rotational motion into linear motion of the central slider 121 through the meshing gear pairs, driving the central slider 121 to precisely extend and retract along the slide groove 127 of the housing 101. This process realizes the "tensioning" function of the steel buckle 2 and is the core execution step of the riveting action. In addition, the cooperation between the rotation limiting groove 202 and the column 106 is crucial. It limits the maximum pivot angle of the tensioner 200 through physical constraints, effectively preventing gear disengagement or mechanism failure due to excessive rotation, thereby ensuring the stability of power transmission and the reliability of the entire riveting process.

[0030] like Figure 9As shown, a mounting hole 207 is provided at the end of the tensioner 200 away from the housing 101. A long rod-shaped handle 203 is threaded into the mounting hole 207. A threaded post 206 is machined at the end of the handle 203 near the tensioner 200, and a reliable connection between the two is achieved by screwing it into the mounting hole 207. To improve operating comfort and safety, an anti-slip sleeve 204 is fitted on the handle 203. The surface of the anti-slip sleeve 204 is provided with anti-slip texture 205 to effectively increase friction, prevent slippage, and ensure stable grip. During operation, rotating the handle 203 inward to retract it drives the tensioner 200 to retract inward around the pivot 128, driving the central slider 121 to slide along the slide groove 127, thereby enabling the clamp assembly 100 to complete the riveting motion of the workpiece. The long-handled handle 203 effectively extends the lever arm, allowing the operator to significantly amplify the force applied by their hand using the lever principle. This increased torque is then efficiently transmitted to the gear transmission mechanism inside the clamp assembly 100, ultimately converting it into the linear punching force required for riveting. This significantly reduces operational intensity and improves work efficiency. Furthermore, this connection method offers a degree of design flexibility: in other embodiments (not shown in the figure), the anti-slip sleeve 204 can be integrally formed with the handle 203, or an anti-slip texture 205 can be directly machined onto the surface of the handle 203; the tensioner 200 and the handle 203 can also be fixed using snap-fit ​​connections, welding, or riveting to meet the needs of different application scenarios.

[0031] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A type of snap-fit ​​pliers, comprising a pliers assembly (100) and a drive mechanism, wherein the drive mechanism is pulsatorically connected to the pliers assembly (100), characterized in that, The clamp assembly (100) includes a housing (101) and a pair of jaws (107) for clamping workpieces; the clamp assembly (100) is provided with a fixing block (104); the jaws (107) are detachably mounted on the fixing block (104) via a connector; by replacing the jaws (107) with different clamping working surface structures, the riveting clamp can be adapted to and rivet workpieces of different specifications.

2. The snap-fitting pliers according to claim 1, characterized in that, The fixing block (104) extends outward to form a gripper mounting base (105).

3. The snap-fitting pliers according to claim 2, characterized in that, The connector is a bolt (109), and the gripper mounting base (105) is provided with a threaded hole (108). The gripper (107) is detachably mounted on the gripper mounting base (105) by the cooperation of the bolt (109) and the threaded hole (108).

4. The snap-fitting pliers according to claim 1, characterized in that, The drive mechanism includes a tensioner (200), and a pivot (128) is provided on the housing (101). The tensioner (200) is pivotally mounted on the housing (101) via the pivot (128).

5. The threaded riveting pliers according to claim 4, characterized in that, A central slider (121) and an auxiliary punch (118) driven by the central slider (121) to perform stamping operations are slidably installed inside the housing (101).

6. The threaded riveting pliers according to claim 5, characterized in that, The central slider (121) has a first gear structure (122) symmetrically arranged on both sides; the tensioner (200) has a second gear structure (201) that meshes with the first gear structure (122) at one end near the housing (101).

7. The threaded riveting pliers according to claim 6, characterized in that, The tensioner (200) is provided with a rotation limiting groove (202) to limit its maximum pivot angle; the fixing block (104) is provided with a column (106) that can be inserted into the rotation limiting groove (202).

8. The snap-fitting pliers according to claim 2, characterized in that, The housing (101) has an internal accommodating space (102), and a punch seat (112) is installed in the accommodating space (102) at the position of the fixing block (104).

9. The threaded riveting pliers according to claim 8, characterized in that, An auxiliary plate (113) is threadedly connected above the punch seat (112), and the auxiliary plate (113) is in close contact with the fixing block (104).

10. The snap-fit ​​pliers according to claim 9, characterized in that, The auxiliary plate (113) has a positioning part (114) for positioning at one end near the gripper (107).

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