A collet structure with a needle structure

Abstract

This invention provides a chuck structure with a pin mechanism, belonging to the field of electrode repair technology. It addresses the problems of existing chuck structures that rely on simple positioning bases, making it difficult to adapt to worn and deformed electrodes, easily leading to shaft offset and eccentric clamping, increasing the difficulty of maintaining coaxiality during repair. The chuck includes a chuck body, a drive column, an upper cover, a detector, a drive pin, a pin assembly, and a detection assembly. The drive column is slidably connected inside the chuck body; the upper cover is located at the top of the chuck body; the detector is fixedly connected to the bottom of the upper cover; the drive pin is located at the top of the drive column and slidably connected inside the detector; the pin assembly is located inside the chuck body; and the detection assembly is located inside the detector. This invention offers advantages such as rapid assembly, shaft positioning, and deformation detection.

Description

Technical Field

[0001] This utility model belongs to the field of pole repair technology, and more specifically, it relates to a clamp structure with a pin structure. Background Technology

[0002] Battery and capacitor terminals are prone to oxidation and deformation due to corrosion and wear over long-term use. During production, dimensional deviations and surface defects may also necessitate secondary repairs, commonly achieved through grinding, welding, and plating. Stable clamping and precise positioning of the terminals are crucial for ensuring repair accuracy and preventing secondary damage, requiring a specialized clamping structure for fixation. Existing clamping structures typically consist of a drive mechanism, a limit clamp, and a positioning base. During operation, the terminal is placed on the bearing surface of the lower positioning base. The drive mechanism moves the upper limit clamp downwards, forming an upper and lower clamping structure with the lower positioning base. Clamping force is applied from both sides of the terminal to achieve a secure fit, providing stable support for the repair operation.

[0003] Existing application number CN202023086418.9 discloses a pneumatic universal drilling fixture for electrode posts, comprising a cylinder, a fixture, and a base. The tail end of the base is vertically connected to a fixed plate via screws. The cylinder is connected to the fixed plate via screws and is positioned above the base. A positioning screw is provided on the actuating end of the cylinder. An adjusting nut is provided on the positioning screw. The fixture is positioned above the front end of the base. A positioning through hole is provided at the front end of the fixture, and the axis of the positioning through hole is coaxial with the positioning screw. Three drilling through holes are provided directly above the positioning through hole. This utility model has a simple structure, is compact and convenient, highly efficient, and allows for flexible adjustment of the drilling position. It can position precision cylindrical workpieces and precision cylindrical workpieces with irregularly shaped ends.

[0004] Based on the above, in existing chuck structures, the electrode post to be repaired often has dimensional inaccuracies due to wear, deformation, and other issues. These chucks typically rely solely on a relatively simple positioning base for initial positioning. However, the positioning base has limited adaptive positioning capability for irregular electrode posts, and the accuracy of the electrode post's axis calibration may be insufficient. This situation can easily lead to axis misalignment during electrode post clamping, resulting in eccentric clamping. Subsequent repair operations such as grinding and welding become more difficult to maintain stable coaxiality, potentially leading to excessive coaxiality errors. This negatively impacts repair quality and the subsequent assembly and use of the electrode post. Utility Model Content

[0005] To address the aforementioned technical problems, this invention provides a chuck structure with a pin mechanism. This solves the issue that existing chuck structures often suffer from dimensional inaccuracies due to wear, deformation, and other factors affecting the dimensional accuracy of the electrode post to be repaired. Such chucks typically rely solely on a relatively simple positioning base for initial positioning. However, the positioning base has limited adaptive positioning capability for irregular electrodes, and the accuracy of the electrode post's axis calibration may be insufficient. This can easily lead to axis misalignment during electrode post clamping, resulting in eccentric clamping. Subsequent repair operations such as grinding and welding become more difficult to maintain stable coaxiality, potentially leading to excessive coaxiality errors. This negatively impacts repair quality and the subsequent assembly and use of the electrode post.

[0006] The purpose and function of this utility model's clamp structure with an ejector pin are achieved by the following specific technical means: A chuck structure with a pin structure includes a chuck body, a drive column, an upper cover, a detector, a drive pin, a pin assembly, and a detection assembly. The drive column is slidably connected inside the chuck body; the upper cover is disposed on the top of the chuck body; the detector is fixedly connected to the bottom of the upper cover; the drive pin is disposed on the top of the drive column and slidably connected inside the detector; the pin assembly is disposed inside the chuck body; and the detection assembly is disposed inside the detector.

[0007] Furthermore, the ejector pin assembly includes: a snap-fit ​​groove and a limiting block, wherein the snap-fit ​​groove is formed on both sides of the top of the clamp body; and the limiting block is fixedly installed on both sides of the bottom of the upper clamp cover.

[0008] Furthermore, the ejector pin assembly also includes a U-shaped slot and a positioning slot, wherein the U-shaped slot is formed on the upper part of the chuck body and the positioning slot is formed on the top of the upper clamping cover.

[0009] Furthermore, the ejector pin assembly also includes: a through hole, a tapered limiting platform, and a positioning head. The through hole is located in the middle of the upper clamping cover. The tapered limiting platform is fixedly connected to the top of the transmission column, and a transmission ejector pin is threadedly connected to the top of the tapered limiting platform. The positioning head is fixedly connected to the top of the transmission ejector pin.

[0010] Furthermore, the detection component includes: sliding rods, ball bearings, and elastic elements. Multiple sets of sliding rods are slidably connected inside the detector, and the multiple sets of sliding rods are arranged in a circumferential array inside the detector. Multiple sets of ball bearings are rotatably connected to the ends of the multiple sets of sliding rods. Multiple sets of elastic elements are provided, with one end of the multiple sets of elastic elements fixedly connected inside the detector, and the other end of the multiple sets of elastic elements fixedly connected to the outside of the multiple sets of sliding rods.

[0011] Furthermore, the detection component also includes: a prompting mechanism and contacts; the prompting mechanism is provided in multiple sets, and the multiple sets of prompting mechanisms are arranged in a circumferential array on the outside of the detector; the contacts are provided in multiple sets, and the multiple sets of contacts are fixedly connected to the bottom of the multiple sets of prompting mechanisms.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this utility model features an ejector pin assembly. Through a quick-connect structure between the upper clamping cover and the main body of the clamp, stable assembly of the two can be achieved. In conjunction with the transmission column, the transmission ejector pin moves, allowing the positioning ejector pin to embed into the pole post shaft center hole, accurately calibrating the pole post shaft center, reducing shaft center offset during clamping, lowering the probability of eccentric clamping, and helping to improve the coaxiality of the pole post after repair. At the same time, the positioning ejector pin can be replaced to adapt to pole post shaft center holes of different sizes, enhancing versatility. The conical limiting platform can also limit the displacement of the transmission column, ensuring operational stability.

[0013] Secondly, this utility model has a detection component. The elastic element drives the sliding rod to fit the transmission pin, and the ball reduces friction loss. When the transmission pin deforms due to long-term use, it can push the sliding rod to trigger the contact point, so that the warning mechanism can issue an alert. This makes it easy for staff to discover and maintain the transmission pin in time, avoid the impact of pin abnormality on positioning accuracy, and further ensure the quality of pole repair.

[0014] This invention has the advantages of rapid assembly, axial positioning, and deformation detection. It not only solves the problem of insufficient positioning accuracy of traditional chucks, but also monitors the status of key components in real time, providing reliable support for stable clamping and precise repair of the pole, and helps to improve repair efficiency and the subsequent assembly and use effect of the pole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the upper clamping structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the transmission column structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the detector structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the sliding rod structure of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Chuck body; 101. Snap-fit ​​groove; 102. U-shaped slot; 2. Transmission column; 201. Conical limiting platform; 3. Upper clamp cover; 301. Positioning groove; 302. Limiting block; 303. Through hole; 4. Detector; 401. Sliding rod; 402. Ball bearing; 403. Elastic element; 404. Indicating mechanism; 405. Contact point; 5. Transmission pin; 501. Positioning pin. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] Example 1: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a chuck structure with a pin structure, including a chuck body 1, a transmission column 2, an upper cover 3, a detector 4, a transmission pin 5, and a pin assembly. The transmission column 2 is slidably connected inside the chuck body 1; the upper cover 3 is disposed on the top of the chuck body 1; the detector 4 is fixedly connected to the bottom of the upper cover 3; the transmission pin 5 is disposed on the top of the transmission column 2 and is slidably connected inside the detector 4; the pin assembly is disposed inside the chuck body 1.

[0023] The ejector pin assembly includes a snap-fit ​​groove 101 and a limiting block 302. The snap-fit ​​groove 101 is formed on both sides of the top of the clamp body 1. The limiting block 302 is fixedly installed on both sides of the bottom of the upper clamp cover 3.

[0024] The ejector pin assembly also includes a U-shaped slot 102 and a positioning groove 301. The U-shaped slot 102 is formed on the upper part of the chuck body 1, and the positioning groove 301 is formed on the top of the upper clamping cover 3.

[0025] The ejector assembly also includes: a through hole 303, a conical limiting platform 201, and a positioning head 501. The through hole 303 is located in the middle of the upper clamping cover 3. The conical limiting platform 201 is fixedly connected to the top of the transmission column 2, and the top of the conical limiting platform 201 is threadedly connected to the transmission ejector 5. The positioning head 501 is fixedly connected to the top of the transmission ejector 5.

[0026] The specific usage and function of this embodiment are as follows: The upper clamping cover 3 is assembled onto the top of the chuck body 1. The upper clamping cover 3 drives the positioning groove 301 to fit against the top of the chuck body 1, achieving initial positioning. At the same time, the upper clamping cover 3 drives the limiting block 302 to engage with the snap-fit ​​groove 101 on the outside of the chuck body 1, completing the quick connection and fixation between the chuck body 1 and the upper clamping cover 3. Subsequently, the drive mechanism acts on the chuck body 1, and with the cooperation of the upper part of the upper clamping cover 3 and the positioning seat, the clamping operation of the pole post is realized.

[0027] During this process, the drive mechanism synchronously drives the transmission column 2 to slide inside the chuck body 1. When the transmission column 2 moves, it drives the conical limiting platform 201 to move synchronously. The conical limiting platform 201 further drives the transmission pin 5 to move, so that the positioning head 501 at the top of the transmission pin 5 extends out of the through hole 303 and is embedded in the shaft hole of the pole post, thereby playing a role in rapid positioning and limiting of the pole post shaft.

[0028] When it is necessary to adapt to different sizes of pole post shaft holes, the transmission pin 5 can be removed from the top of the conical limiting platform 201 through threaded connection, and the positioning pin 501 can be replaced; at the same time, the conical limiting platform 201 can limit the maximum movement distance of the transmission column 2.

[0029] Example 2: Based on Example 1, such as Figures 1 to 5 As shown, it also includes a detection component, which is disposed inside the detector 4.

[0030] The detection component includes: a sliding rod 401, a ball bearing 402, and an elastic element 403. Multiple sets of sliding rods 401 are provided, and the multiple sets of sliding rods 401 are slidably connected inside the detector 4, and the multiple sets of sliding rods 401 are arranged in a circumferential array inside the detector 4. Multiple sets of ball bearings 402 are provided, and the multiple sets of ball bearings 402 are rotatably connected to the ends of the multiple sets of sliding rods 401. Multiple sets of elastic elements 403 are provided, and one end of the multiple sets of elastic elements 403 is fixedly connected inside the detector 4, and the other end of the multiple sets of elastic elements 403 is fixedly connected to the outside of the multiple sets of sliding rods 401.

[0031] The detection component also includes: a prompting mechanism 404 and a contact 405. The prompting mechanism 404 is provided in multiple sets, and the multiple sets of prompting mechanisms 404 are arranged in a circumferential array on the outside of the detector 4. The contact 405 is provided in multiple sets, and the multiple sets of contact 405 are fixedly connected to the bottom of the multiple sets of prompting mechanisms 404.

[0032] The specific usage and function of this embodiment are as follows: After prolonged use, the transmission pin 5 may deform or shift, which can affect the positioning accuracy of the shaft. During operation, the elastic element 403 uses its own elastic potential energy to drive the sliding rod 401 to always be in contact with the outside of the transmission pin 5, while the ball bearing 402 at the end of the sliding rod 401 can reduce the frictional resistance between it and the outer wall of the transmission pin 5, thus reducing component wear.

[0033] When the transmission pin 5 deforms, the protruding part caused by the deformation will contact the corresponding ball 402 during its sliding process, pushing the ball 402 to move. The ball 402 further drives the sliding rod 401 to slide inside the detector 4, while compressing the elastic element 403. After the sliding rod 401 moves, it will trigger the contact 405 inside the detector 4, which will then activate the indicator mechanism 404 on the outside of the detector 4 and issue a warning, so that the staff can promptly detect the abnormality of the transmission pin 5, replace or maintain it, and ensure the accuracy of subsequent positioning and repair operations.

[0034] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0035] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0036] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A collet structure having a thimble structure, characterized by: The chuck structure with a pin structure includes a chuck body (1), a transmission column (2), an upper cover (3), a detector (4), a transmission pin (5), a pin assembly, and a detection assembly. The transmission column (2) is slidably connected inside the chuck body (1). The upper cover (3) is located on the top of the chuck body (1). The detector (4) is fixedly connected to the bottom of the upper cover (3). The transmission pin (5) is located on the top of the transmission column (2) and is slidably connected inside the detector (4). The pin assembly is located inside the chuck body (1). The detection assembly is located inside the detector (4).

2. The collet structure having a needle structure according to claim 1, wherein: The ejector pin assembly includes a snap-fit ​​groove (101) and a limiting block (302). The snap-fit ​​groove (101) is opened on both sides of the top of the clamp body (1). The limiting block (302) is fixedly installed on both sides of the bottom of the upper clamp cover (3).

3. The chuck structure with an ejector pin structure as described in claim 2, characterized in that: The ejector pin assembly also includes a U-shaped slot (102) and a positioning slot (301). The U-shaped slot (102) is formed on the upper part of the chuck body (1), and the positioning slot (301) is formed on the top of the upper cover (3).

4. The chuck structure with an ejector pin structure as described in claim 2, characterized in that: The ejector assembly also includes: a through hole (303), a conical limiting platform (201), and a positioning head (501). The through hole (303) is located in the middle of the upper clamp (3). The conical limiting platform (201) is fixedly connected to the top of the transmission column (2), and the top of the conical limiting platform (201) is threadedly connected to the transmission ejector (5). The positioning head (501) is fixedly connected to the top of the transmission ejector (5).

5. The chuck structure with a pin structure as described in claim 1, characterized in that: The detection component includes: a sliding rod (401), a ball bearing (402), and an elastic element (403). Multiple sets of the sliding rod (401) are provided, and the multiple sets of the sliding rod (401) are slidably connected inside the detector (4). The multiple sets of the sliding rod (401) are arranged in a circumferential array inside the detector (4). Multiple sets of the ball bearing (402) are provided, and the multiple sets of the ball bearing (402) are rotatably connected to the ends of the multiple sets of sliding rods (401). Multiple sets of the elastic element (403) are provided, and one end of the multiple sets of the elastic element (403) is fixedly connected inside the detector (4), and the other end of the multiple sets of the elastic element (403) is fixedly connected to the outside of the multiple sets of sliding rods (401).

6. The chuck structure with an ejector pin structure as described in claim 5, characterized in that: The detection component further includes: a prompting mechanism (404) and a contact (405). The prompting mechanism (404) is provided in multiple sets, and the multiple sets of the prompting mechanism (404) are arranged in a circumferential array on the outside of the detector (4). The contact (405) is provided in multiple sets, and the multiple sets of the contact (405) are fixedly connected to the bottom of the multiple sets of prompting mechanisms (404).

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