Cylinder pin dotting tool

Abstract

The utility model discloses a kind of cylindrical pin dotting tool, including driving assembly, and the dotting assembly opposite to driving assembly is set, dotting assembly includes punch, driving assembly drives workpiece to be close to punch, so that workpiece voluntarily impacts punch and then realizes the dotting of workpiece;The application is driven by setting driving assembly, workpiece is close to punch, so that workpiece impacts punch with certain speed and force, and driving assembly ensures the stability of relative position and contact force between workpiece and punch when dotting each time, thereby solve the problem that accurate dotting position and stable dotting quality cannot be ensured in prior art;The initiative impact control mechanism of dotting tool can reduce the dotting deviation and quality fluctuation caused by workpiece position change or impact force uneven, ensure the consistency and accuracy of dotting, improve the machining precision and reliability of product.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical pin dotting technology, and specifically to a cylindrical pin dotting tool. Background Technology

[0002] Pin piercing (also known as "pin dotting" or "punching") involves using a punch to create a recess in the contact area around the pin hole, causing localized plastic deformation of the material and thus "locking" the pin in place. The main purpose is to prevent the pin from rotating or moving axially within the hole, ensuring its permanent position.

[0003] The current product processing relies on manual riveting by workers. This processing method has obvious defects. The angle and distance are all completed by hand, the processing efficiency cannot be guaranteed, and there are potential quality problems. The finished products have inconsistent riveting positions and angles, and there is a risk that internal products may fall off. Utility Model Content

[0004] To address the shortcomings of existing technologies, a cylindrical pin dotting tooling is proposed, which solves the problems of unreliable efficiency and potential quality risks associated with manual dotting in the aforementioned technologies.

[0005] To achieve the above objectives, the present invention proposes the following technologies: A cylindrical pin dotting tool includes a driving component and a dotting component disposed opposite to the driving component. The dotting component includes a punch. The driving component drives a workpiece close to the punch, so that the workpiece actively impacts the punch to achieve dotting on the workpiece.

[0006] Furthermore, the driving component includes a push plate with a dotting opening and a positioning groove at the same height as the punch inside the dotting opening. The workpiece is installed in the positioning groove so that the punch can dot the workpiece.

[0007] Furthermore, a limiting block is detachably connected to the push plate. An opening is provided on one side of the limiting block to form a positioning groove. The positioning groove includes a tapered guide portion and a mounting portion located at the end of the guide portion for placing the workpiece.

[0008] Furthermore, the driving component also includes a slider fixedly connected to the bottom of the push plate, the slider being slidably connected to a slide rail, and the slide rail being fixedly installed on the worktable via a guide plate.

[0009] Furthermore, it also includes an ejector assembly, which includes an ejector pin located on one side of the positioning groove. The ejector pin is located at the end of the ejector rod, which is slidably connected to a support plate. The support plate is fixedly connected to a push plate.

[0010] Furthermore, the ejection assembly also includes an ejection roller located on the support frame. When the push plate drives the workpiece that has completed the marking to reset, the ejection roller pushes the ejection rod to extend out of the support plate and drives the ejector pin to eject the workpiece in the positioning groove to achieve unloading.

[0011] Furthermore, a spring is provided around the ejector pin, with both ends of the spring abutting against the end face of the ejector rod and the side of the push plate, respectively. After the ejector rod disengages from the ejector roller, the spring pushes the ejector rod to reset.

[0012] Furthermore, the support frame is provided with a telescopic pin, which is located above the ejector roller. A push plate is fixed above the push plate. When the push plate approaches the punch, the push plate pushes the telescopic pin to rotate the support frame, thereby causing the ejector roller to avoid the ejector rod.

[0013] Furthermore, the end face of the telescopic pin is set as an inclined surface, and a guide surface is correspondingly set on the side of the push plate adjacent to the telescopic pin. When the push plate drives the push plate away from the punch, the guide surface abuts against the inclined surface and pushes the telescopic pin into the support frame through the inclined surface to avoid interference.

[0014] Furthermore, a feeding plate is provided on one side of the push plate, and a feeding groove is provided on the feeding plate. The feeding groove is arranged opposite to the mounting part, and the outer side of the feeding groove is connected to the discharge port of the feeding vibratory plate.

[0015] Compared with the prior art, the comprehensive effects brought about by this utility model include: This application, by setting up a driving component, actively moves the workpiece closer to the punch, so that the workpiece impacts the punch at a certain speed and force. The driving component ensures the stability of the relative position and contact force between the workpiece and the punch each time a dot is made, thereby solving the problem that the prior art cannot ensure accurate dot position and stable dot quality. The active impact control mechanism of the dot tool can reduce dot offset and quality fluctuation caused by changes in workpiece position or uneven impact force, ensuring the consistency and accuracy of dot making, and improving the processing precision and reliability of the product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of a local structure in the middle; Figure 3 This is a schematic diagram of the overall rear structure of an embodiment of the present utility model; Figure 4 This is a cross-sectional view of the ejector rod in an embodiment of the present invention.

[0017] Legend: 1. Punch; 2. Workpiece; 3. Push plate; 4. Dotting port; 5. Positioning groove; 6. Limiting block; 7. Slide rail; 8. Guide plate; 9. Worktable; 10. Ejector pin; 11. Ejector rod; 12. Support frame; 13. Ejector roller; 14. Telescopic pin; 15. Push plate; 16. Guide surface; 17. Feeding plate; 18. Feeding trough; 19. Feeding vibratory feeder; 20. Support plate. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0020] like Figures 1 to 4 As shown, a cylindrical pin dotting tool includes a driving component and a dotting component disposed opposite to the driving component. The dotting component includes a punch 1. The driving component drives the workpiece 2 to approach the punch 1, so that the workpiece 2 actively impacts the punch 1 to achieve dotting on the workpiece 2.

[0021] By setting up a drive component, the workpiece 2 is actively driven to approach the punch 1, so that the workpiece 2 impacts the punch 1 at a certain speed and force. The drive component ensures the stability of the relative position and contact force between the workpiece 2 and the punch 1 each time a dot is made, thereby solving the problem that the existing technology cannot ensure accurate dot position and stable dot quality. The active impact control mechanism of the dot tool can reduce dot offset and quality fluctuation caused by changes in the position of the workpiece 2 or uneven impact force, ensuring the consistency and accuracy of dot making, and improving the processing precision and reliability of the product.

[0022] In the cylindrical pin dotting fixture of this embodiment, the driving component includes a push plate 3, the push plate 3 has a dotting opening 4, the dotting opening 4 has a positioning groove 5 of the same height as the punch 1, and the workpiece 2 is installed in the positioning groove 5 so that the punch 1 can dot the workpiece 2.

[0023] In this embodiment, the push plate 3 is designed with a punching port 4, which has a positioning groove 5 inside. The height of the positioning groove 5 matches that of the punch 1, and the workpiece 2 is precisely placed in the positioning groove 5 to achieve fixed-point punching. The above structure ensures the punching accuracy of the punch 1 on the workpiece 2. At the same time, the use of the positioning groove 5 also increases the stability of the workpiece 2 during the punching process, preventing displacement or deformation due to punching force.

[0024] Specifically, the drive assembly also includes a cylinder for driving the push plate 3 to reciprocate. Through the extension and retraction of the cylinder, the push plate 3 can accurately deliver the workpiece 2 to the punch 1, achieving efficient and accurate dotting operation. Under the action of the push plate 3, the positioning of the workpiece 2 and the dotting action of the punch 1 are coordinated, significantly improving production efficiency and product quality, and reducing errors and defective products caused by manual operation.

[0025] Preferably, the dotting assembly further includes a positioning post for fixing the punch 1. The punch 1 is arranged perpendicular to the positioning post and is detachably connected to the positioning post so as to facilitate the replacement of punches 1 with different end shapes to meet different dotting requirements.

[0026] In the cylindrical pin dotting fixture of this embodiment, a limiting block 6 is detachably connected to the push plate 3. An opening is provided on one side of the limiting block 6 to form a positioning groove 5. The positioning groove 5 includes a tapered guide portion and a mounting portion located at the end of the guide portion for placing the workpiece 2.

[0027] In this embodiment, the push plate 3 forms a positioning groove 5 through a detachably connected limiting block 6. The positioning groove 5 adopts a design that combines a conical guide part with a mounting part, which not only facilitates the quick installation and positioning of the workpiece 2, but also allows the conical guide part to guide the punch 1 to accurately punch into the mounting part, thereby achieving precise marking of the workpiece 2 in the mounting part.

[0028] The detachable nature of the limiting block 6 allows the push plate 3 to be replaced with limiting blocks 6 that are equipped with different positioning slots 5. Different positioning slots 5 correspond to the installation of workpieces 2 of different sizes or shapes, thereby improving the versatility and flexibility of the dotting fixture.

[0029] In other embodiments not shown in the figure, the specific shape of the positioning groove 5 can be adjusted according to actual needs, such as using more complex curves to adapt to the shape characteristics of a specific workpiece 2, or enhancing the guiding accuracy to ensure that each step of the production process can reach the optimal state.

[0030] In the cylindrical pin dotting fixture of this embodiment, the driving component also includes a slider fixedly connected to the bottom of the push plate 3. The slider is slidably connected to the slide rail 7, and the slide rail 7 is fixedly installed on the worktable 9 through the guide plate 8.

[0031] By forming a sliding engagement between the slider and the slide rail 7, the push plate 3 can slide smoothly along the slide rail 7 when performing actions, and its movement trajectory is guided by the guide plate 8, ensuring the accuracy and stability of the entire device operation.

[0032] In practical applications, the cooperation between the slider and the slide rail 7 not only reduces the friction during the movement of the push plate 3, but also improves the smoothness of its movement, thereby increasing production efficiency. Furthermore, the presence of the guide plate 8 further regulates the position of the slide rail 7, preventing abnormal movement of the push plate 3 due to slide rail 7 misalignment, protecting the equipment from unnecessary damage, and maintaining machining accuracy. This significantly contributes to improving the machining quality of the workpiece 2 and the reliability of equipment operation.

[0033] The cylindrical pin dotting fixture in this embodiment also includes an ejector assembly. The ejector assembly includes an ejector pin 10 located on one side of the positioning groove 5. The ejector pin 10 is located at the end of the ejector rod 11. The ejector rod 11 is slidably connected to the support plate 20. The support plate 20 is fixedly connected to the push plate 3.

[0034] Specifically, the ejector pin 10 is coaxially arranged with the workpiece 2 in the positioning groove 5, and the support plate 20 is fixed on the push plate 3. The movement of the support plate 20 is synchronized with the push plate 3. When the push plate 3 drives the workpiece 2 to complete the return stroke after marking, the ejector rod 11 slides in the support plate 20 to drive the ejector pin 10 to move along the direction of the positioning groove 5, contact and push the workpiece 2, so that it can smoothly get out of the push plate 3 and realize the unloading of the workpiece 2 after marking.

[0035] In the cylindrical pin dotting fixture of this embodiment, the ejection assembly also includes an ejection roller 13. The ejection roller 13 is located on the support frame 12. When the push plate 3 drives the workpiece 2 that has completed dotting to reset, the ejection roller 13 pushes the ejection rod 11 to extend out of the support plate 20 and drives the ejector pin 10 to eject the workpiece 2 in the positioning groove 5 to realize unloading.

[0036] Specifically, the support frame 12 is rotatably connected to the worktable 9 by a torsion spring. The end of the guide plate 8 limits the support frame 12. When the push plate 3 drives the workpiece 2 to approach the punch 1, it pushes the support frame 12 to rotate and reset under the action of the torsion spring, abutting against the guide plate 8.

[0037] An ejector roller 13 is installed on the support frame 12. When the push plate 3 guides the workpiece 2 that has been marked back to its original position, it drives the support plate 20 and the ejector rod 11 through the support frame 12. At this time, the support frame 12 cannot rotate under the limiting action of the guide plate 8. The end of the ejector rod 11 abuts against the ejector roller 13 and is pushed by the ejector roller 13, causing the ejector rod 11 to extend outward from the inside of the support plate 20. This drives the ejector pin 10 to accurately act on the workpiece 2 in the positioning groove 5, ejecting the workpiece 2 and dropping it between the drive assembly and the marking assembly for easy collection. This achieves an efficient and orderly ejection and unloading process.

[0038] The automatic unloading of workpiece 2 after marking is achieved through the aforementioned support frame 12 and ejector roller 13, effectively improving production efficiency and ensuring smooth workpiece transfer. The ejector pin 10 reduces potential damage or deformation during unloading, thus improving product quality. Simultaneously, the linkage mechanism between ejector roller 13 and ejector rod 11 makes the entire ejection action smoother and more controllable, providing strong support for automated production lines.

[0039] In the cylindrical pin dotting fixture of this embodiment, the support frame 12 is provided with a telescopic pin 14, which is located above the ejector roller 13. A push plate 15 is fixed above the push plate 3. When the push plate 15 approaches the punch 1, the push plate 15 pushes the telescopic pin 14 to make the support frame 12 rotate, so as to drive the ejector roller 13 to avoid the ejector rod 11.

[0040] The support frame 12 is equipped with a telescopic pin 14, which cooperates with the push plate 15 fixed above the push plate 3. When the push plate 3 moves towards the punch 1, it drives the push plate 15 above it to contact the telescopic pin 14 and apply a pushing force, thereby driving the support frame 12 to rotate, causing the ejector roller 13 to turn away and move away from the movement path of the ejector rod 11, avoiding contact with the ejector rod 11, thereby preventing the ejector pin 10 from moving and prematurely pushing out the workpiece 2.

[0041] The aforementioned linkage mechanism prevents the ejector rod 11 from being driven by the ejector roller 13 before the workpiece 2 is marked, thus ensuring the smooth marking of the workpiece 2. When the push plate 15 no longer contacts the telescopic pin 14, the support frame 12 rotates under the action of the torsion spring, preparing for the ejection of the marked workpiece 2. The entire process demonstrates the rationality and efficiency of the device design.

[0042] In the cylindrical pin dotting fixture of this embodiment, the end face of the telescopic pin 14 is set as an inclined surface, and the guide surface 16 is correspondingly set on the side of the push plate 15 adjacent to the telescopic pin 14. When the push plate 3 drives the push plate 15 away from the punch 1, the guide surface 16 abuts against the inclined surface and pushes the telescopic pin 14 into the support frame 12 through the inclined surface to avoid interference.

[0043] The inclined surface of the telescopic pin 14 interacts with the guide surface 16 of the push plate 15. During the return stroke, the push plate 15 pushes the telescopic pin 14 into the support frame 12, thereby avoiding interference and ensuring the smooth return of the push plate 15 and the push plate 3.

[0044] Specifically, when the push plate 3 drives the push plate 15 to move away from the punch 1, the guide surface 16 on the push plate 15 contacts the inclined surface of the telescopic pin 14 and applies force, causing the telescopic pin 14 to insert into the support frame 12. This action effectively avoids interference between the push plate 15 and the support frame 12, ensuring the smooth operation of the entire system.

[0045] In the cylindrical pin dotting fixture of this embodiment, a spring is provided around the ejector pin 10. The two ends of the spring abut against the end face of the ejector rod 11 and the side of the push plate 3, respectively. After the ejector rod 11 disengages from the ejector roller 13, the spring pushes the ejector rod 11 to reset.

[0046] The two ends of the spring (not shown) abut against the end face of the ejector rod 11 and the side of the push plate 3, respectively, forming an automatic reset mechanism. When the support plate 20 moves and causes the ejector rod 11 to no longer contact the ejector roller 13, the ejector rod 11 is no longer pushed by the ejector roller 13. The elastic force of the spring causes the ejector rod 11 to quickly return to the initial position, preparing for the next ejection, thus ensuring the continuity and efficiency of the equipment operation.

[0047] The above-mentioned setup simplifies the operation process, avoids the tediousness of manual reset, and significantly enhances the automation level of the device, thereby improving production efficiency. Furthermore, this automatic reset structure effectively reduces energy consumption, lessens the burden on the power system, and extends equipment lifespan, playing a positive role in improving product quality and production efficiency.

[0048] In the cylindrical pin dotting fixture of this embodiment, a feeding plate 17 is provided on one side of the push plate 3. A feeding groove 18 is provided on the feeding plate 17. The feeding groove 18 is arranged opposite to the mounting part. The outer side of the feeding groove 18 is connected to the discharge port of the feeding vibratory plate 19.

[0049] The push plate 3 has a feeding plate 17 integrated on one side, which is specially provided with a feeding groove 18 corresponding to the mounting part. The outer side of the feeding groove 18 is directly connected to the discharge port of the feeding vibratory plate 19. This layout is designed to realize the automated feeding process of the workpiece 2.

[0050] Specifically, the vibratory feeder 19 transports workpieces 2 one by one into the feeding trough 18. Then, the workpieces 2 automatically enter their predetermined installation positions along the guide path of the feeding trough 18, ready to receive subsequent processing operations. This design not only optimizes the efficiency of the production line but also improves processing accuracy and safety by reducing manual intervention. In practical applications, this continuous sequence of actions ensures a smooth transition of workpieces 2, reduces positioning errors caused by manual placement, and also reduces the labor intensity of operators, achieving efficient and precise automated production.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical pin marking fixture, characterized in that, It includes a driving component and a dotting component disposed opposite to the driving component. The dotting component includes a punch. The driving component drives the workpiece close to the punch, so that the workpiece actively impacts the punch and thus achieves dotting on the workpiece.

2. The cylindrical pin dotting fixture according to claim 1, characterized in that, The driving component includes a push plate with a dotting opening. The dotting opening has a positioning groove at the same height as the punch. The workpiece is installed in the positioning groove so that the punch can dot the workpiece.

3. The cylindrical pin marking fixture according to claim 2, characterized in that, A limiting block is detachably connected to the push plate. An opening is provided on one side of the limiting block to form a positioning groove. The positioning groove includes a tapered guide portion and a mounting portion located at the end of the guide portion for placing the workpiece.

4. The cylindrical pin dotting fixture according to claim 2, characterized in that, The driving component also includes a slider fixedly connected to the bottom of the push plate, the slider being slidably connected to a slide rail, and the slide rail being fixedly installed on the worktable via a guide plate.

5. The cylindrical pin dotting fixture according to claim 2, characterized in that, It also includes an ejector assembly, which includes an ejector pin located on one side of the positioning groove. The ejector pin is located at the end of the ejector rod, which is slidably connected to a support plate. The support plate is fixedly connected to a push plate.

6. The cylindrical pin marking fixture according to claim 5, characterized in that, The ejection assembly also includes an ejection roller, which is located on the support frame. When the push plate drives the workpiece that has been marked to reset, the ejection roller pushes the ejection rod to extend out of the support plate and drives the ejector pin to eject the workpiece in the positioning groove to achieve unloading.

7. The cylindrical pin marking fixture according to claim 6, characterized in that, A spring is provided around the ejector pin. The two ends of the spring abut against the end face of the ejector rod and the side of the push plate, respectively. After the ejector rod disengages from the ejector roller, the spring pushes the ejector rod to reset.

8. A cylindrical pin marking fixture according to claim 6, characterized in that, The support frame is equipped with a telescopic pin, which is located above the ejector roller. A push plate is fixed above the push plate. When the push plate approaches the punch, the push plate pushes the telescopic pin to rotate the support frame, thereby causing the ejector roller to avoid the ejector rod.

9. A cylindrical pin marking fixture according to claim 8, characterized in that, The end face of the telescopic pin is set as an inclined surface, and a guide surface is set on the side of the push plate adjacent to the telescopic pin. When the push plate moves the push plate away from the punch, the guide surface abuts against the inclined surface and pushes the telescopic pin into the support frame through the inclined surface to avoid interference.

10. A cylindrical pin dotting fixture according to claim 3, characterized in that, A feeding plate is provided on one side of the push plate, and a feeding groove is provided on the feeding plate. The feeding groove is arranged opposite to the mounting part, and the outer side of the feeding groove is connected to the discharge port of the feeding vibratory plate.

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