Positioning tool for hardware machining

Abstract

The utility model discloses a positioning frock of hardware product processing relates to hardware product processing technical field, including operation panel, support column, preposition mechanism and clamping mechanism, preposition mechanism is located operation panel upper end, and clamping mechanism is located operation panel lower extreme, and preposition mechanism realizes the axial pre -clamping and initial positioning of work piece through servo motor drive, and clamping mechanism utilizes gear drive and drives fixed cylinder rotation, and through the stroke groove will rotate motion convert into the axial movement of sliding rod, and drive clamping plate to work piece and carry out stable clamping, the utility model discloses a pre -positioning and main clamping cooperative work through the setting, solved the positioning of traditional clamping mode existence, the work piece is easy to deviate in the clamping process, and the problem of poor clamping stability, realized the high accuracy positioning of work piece clamping and self -adaptation reliable clamping, and pre -positioning mechanism can automatically separate after clamping, avoids processing interference, and the operation efficiency of hardware product processing has been promoted.

Description

Technical Field

[0001] This utility model relates to the field of hardware product processing technology, specifically a positioning fixture for hardware product processing. Background Technology

[0002] In the field of metal product machining, the positioning accuracy and clamping stability of workpieces are crucial to ensuring machining precision. Traditional clamping devices usually adopt a single clamping structure and lack an effective pre-positioning function, which makes the workpiece prone to axial displacement or circumferential rotation during clamping, directly affecting the dimensions and surface quality of subsequent processing.

[0003] In the prior art, a common clamping method is to directly use a pneumatic or hydraulic chuck to clamp the workpiece. Although this method is simple in structure, when clamping non-standard or workpieces with large dimensional tolerances, due to the lack of pre-positioning, the chuck's jaws may push the workpiece to move during the closing process, resulting in inconsistent clamping positions and cumulative errors. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a positioning fixture for processing hardware products, which has the advantages of accurate positioning and stable clamping, and solves the problem of large clamping errors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for processing hardware products, wherein the positioning component includes an operating table and a support column, and the lower end of the operating table is fixedly connected to the lower end of the support column; The upper end of the operating table is provided with a pre-positioning mechanism, and the lower end of the operating table is provided with a clamping mechanism. The pre-positioning mechanism is used to pre-position the hardware products before processing, and the clamping mechanism is used to clamp the hardware products.

[0006] In a preferred embodiment of this utility model, the pre-positioning mechanism includes a protective cover, a fixing ring, a servo motor, a transmission shaft, a fixing sleeve, and a pre-positioning clamp. The surface of the protective cover is fixedly connected to the surface of the fixing ring, the inner wall of the fixing ring is fixedly connected to the surface of the servo motor, the output end of the servo motor is fixedly connected to the surface of the transmission shaft, the surface of the transmission shaft is fixedly connected to the inner wall of the fixing sleeve, and the surface of the fixing sleeve is fixedly connected to the surface of the pre-positioning clamp.

[0007] In a preferred embodiment of this invention, the inner wall of the operating table is fixedly connected to the lower end of the protective cover, and the surface of the transmission shaft is rotatably connected to the inner wall of the protective cover.

[0008] In a preferred embodiment of this utility model, the clamping mechanism includes a clamping motor, a driving gear, a driven gear, a fixed cylinder, a stroke groove, a sliding rod, a clamping plate, and a fixed plate. The output end of the clamping motor is fixedly connected to the inner wall of the driving gear, the tooth surface of the driving gear meshes with the tooth surface of the driven gear, the inner side of the driven gear is fixedly connected to the surface of the fixed cylinder, the stroke groove is formed in the inner wall of the fixed cylinder, the inner wall of the stroke groove is slidably connected to the lower end of the sliding rod, the upper end of the sliding rod is fixedly connected to the lower end of the clamping plate, and the lower end of the clamping plate is slidably connected to the upper end of the fixed plate.

[0009] In a preferred embodiment of this invention, the surface of the clamping motor is fixedly connected to the upper end of the support column, and the surface of the fixing cylinder is rotatably connected to the lower end of the operating table via a bearing.

[0010] In a preferred embodiment of this invention, the surface of the fixed plate is fixedly connected to the inner wall of the operating table, and the upper surface of the sliding rod is slidably connected to the inner wall of the fixed plate through a sliding groove.

[0011] In a preferred embodiment of this invention, the lower end of the sliding rod is slidably connected to the inner wall of the fixed cylinder via a sliding groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problems of inaccurate positioning and unstable clamping during the clamping process of hardware products by setting a cooperative structure between the pre-positioning mechanism and the clamping mechanism, thereby improving the clamping, enhancing processing stability and increasing the degree of automation.

[0013] 2. This utility model solves the problem of initial workpiece positioning offset by setting a pre-positioning mechanism composed of a servo motor, a transmission shaft and a pre-clamp, realizing rapid axial positioning and releasable pre-clamping before processing, and improving positioning consistency.

[0014] 3. This utility model solves the problems of poor clamping adaptability and uneven clamping force by setting a clamping mechanism with gear transmission, stroke groove and sliding rod linkage, realizing adaptive and reliable clamping of workpieces of different sizes, ensuring stable clamping and precise operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the pre-positioning mechanism provided in this embodiment of the utility model; Figure 3 This is a three-dimensional structural diagram of the clamping mechanism provided in this embodiment of the utility model; Figure 4This is a schematic diagram of the main body from a bottom view in an embodiment of this utility model.

[0016] In the diagram: 1. Positioning component; 101. Operating table; 102. Support column; 2. Pre-positioning mechanism; 201. Protective cover; 202. Fixing ring; 203. Servo motor; 204. Drive shaft; 205. Fixing sleeve; 206. Pre-positioning clamp; 3. Clamping mechanism; 301. Clamping motor; 302. Drive gear; 303. Driven gear; 304. Fixing cylinder; 305. Stroke groove; 306. Sliding rod; 307. Clamping plate; 308. Fixing plate. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Example 1 Reference Figure 1 4. As the first embodiment of this utility model, a positioning component 1 is provided, including an operating table 101 and a support column 102. The lower end of the operating table 101 is fixedly connected to the lower end of the support column 102. A pre-positioning mechanism 2 is provided at the upper end of the operating table 101, and a clamping mechanism 3 is provided at the lower end of the operating table 101. The pre-positioning mechanism 2 is used to pre-position the hardware product before processing, and the clamping mechanism 3 is used to clamp the hardware product.

[0022] Specifically, by setting up the pre-positioning mechanism 2 and the clamping mechanism 3 in coordination, the problems of inaccurate positioning and unstable clamping of hardware products during the clamping process are effectively solved. The pre-positioning mechanism 2 quickly positions the workpiece axially before clamping to ensure that it is in the correct initial position. Then the clamping mechanism 3 completes the clamping, improving the consistency and reliability of clamping. After clamping is completed, the pre-positioning mechanism 2 automatically disengages to avoid interfering with the main machining process.

[0023] Furthermore, the hardware products are pre-positioned by the pre-positioning mechanism 2 before processing, and then clamped by the clamping mechanism 3. At this time, the hardware products are firmly fixed by the main clamping mechanism 3 and can enter the next stage of processing.

[0024] Example 2 The second embodiment of this utility model provides a pre-positioning mechanism 2 including a protective cover 201, a fixing ring 202, a servo motor 203, a transmission shaft 204, a fixing sleeve 205, and a pre-positioning clamp 206. The surface of the protective cover 201 is fixedly connected to the surface of the fixing ring 202, the inner wall of the fixing ring 202 is fixedly connected to the surface of the servo motor 203, the output end of the servo motor 203 is fixedly connected to the surface of the transmission shaft 204, the surface of the transmission shaft 204 is fixedly connected to the inner wall of the fixing sleeve 205, the surface of the fixing sleeve 205 is fixedly connected to the surface of the pre-positioning clamp 206, the inner wall of the operating table 101 is fixedly connected to the lower end of the protective cover 201, and the surface of the transmission shaft 204 is rotatably connected to the inner wall of the protective cover 201.

[0025] Specifically, the pre-positioning mechanism 2 uses a servo motor 203 to drive the transmission shaft 204, the fixed sleeve 205, and the pre-positioning clamp 206 in a linkage structure, which solves the problem of inaccurate initial positioning and easy deviation of hardware products. The protective cover 201 and the fixed ring 202 effectively protect the internal transmission components and improve the stability of operation. The servo motor 203 controls the forward and backward movement of the pre-positioning clamp 206 to achieve rapid axial positioning of the workpiece and reliable pre-clamping before processing. After clamping, it can be reversed to disengage and avoid interference with the main processing.

[0026] Furthermore, before processing and positioning the hardware product, the pre-positioning mechanism 2 is first activated, and the servo motor 203 is powered on and runs. Its output end is fixedly connected to the surface of the transmission shaft 204, and the surface of the transmission shaft 204 is firmly connected to the inner wall of the fixed sleeve 205. The fixed sleeve 205 is connected to the pre-positioning clamp 206. As the servo motor 203 rotates, the motion is transmitted to the transmission shaft 204, causing the pre-positioning clamp 206 to rotate synchronously, so that it is fitted along the outer circumference of the hardware product, realizing the initial clamping and axial positioning of the workpiece. This pre-positioning process ensures that the hardware product is in the correct position before the subsequent clamping operation, providing a basis for clamping. After the clamping mechanism 3 completes the complete clamping of the hardware product, in order to avoid the pre-positioning component from interfering with the processing process, the servo motor 203 can be started in reverse. The servo motor 203 drives the transmission shaft 204 to rotate in reverse, so that the fixed sleeve 205 and the pre-positioning clamp 206 connected to it are disengaged from the hardware product, completing the release of the pre-positioning function.

[0027] Example 3 The third embodiment of this utility model provides a clamping mechanism 3 including a clamping motor 301, a driving gear 302, a driven gear 303, a fixed cylinder 304, a stroke groove 305, a sliding rod 306, a clamping plate 307, and a fixed plate 308. The output end of the clamping motor 301 is fixedly connected to the inner wall of the driving gear 302. The tooth surface of the driving gear 302 meshes with the tooth surface of the driven gear 303. The inner side of the driven gear 303 is fixedly connected to the surface of the fixed cylinder 304. The stroke groove 305 is formed in the inner wall of the fixed cylinder 304, and the inner wall of the stroke groove 305 is connected to the sliding rod 306. The lower end of the moving rod 306 is slidably connected, the upper end of the sliding rod 306 is fixedly connected to the lower end of the clamping plate 307, the lower end of the clamping plate 307 is slidably connected to the upper end of the fixed plate 308, the surface of the clamping motor 301 is fixedly connected to the upper end of the support column 102, the surface of the fixed cylinder 304 is rotatably connected to the lower end of the operating table 101 through a bearing, the surface of the fixed plate 308 is fixedly connected to the inner wall of the operating table 101, the upper surface of the sliding rod 306 is slidably connected to the inner wall of the fixed plate 308 through a sliding groove, and the lower end of the sliding rod 306 is slidably connected to the inner wall of the fixed cylinder 304 through a sliding groove.

[0028] Specifically, the clamping mechanism 3, through gear transmission and linkage with the stroke groove 305 and sliding rod 306, solves the problems of poor adaptability and uneven clamping force in traditional clamping methods. The driving gear 302 drives the driven gear 303 to rotate the fixed cylinder 304. The stroke groove 305 accurately converts the rotational motion into the axial linear motion of the sliding rod 306, realizing the radial feed of the clamping plate 307. It can automatically adjust the clamping stroke according to the actual size of the hardware product, and has good adaptability and clamping stability.

[0029] Furthermore, after pre-positioning is completed, the clamping motor 301 starts, and the driving gear 302 connected to its output end begins to rotate, forming a meshing transmission with the driven gear 303, thereby driving the driven gear 303 to rotate synchronously. A fixed cylinder 304 is fixedly connected to the inner side of the driven gear 303. The fixed cylinder 304 has a stroke groove 305 inside, and a slidable sliding rod 306 is installed in the groove. The upper end of the sliding rod 306 is connected to the clamping plate 307, and the clamping plate 307 moves linearly along the guide surface of the fixed plate 308. As the fixed cylinder 304 rotates under power transmission, the structure of the stroke groove 305 converts the rotational motion into the axial displacement of the sliding rod 306, thereby pushing the clamping plate 307 to move towards the surface of the hardware product. The clamping stroke is automatically adjusted according to the actual size of the workpiece to achieve stable and reliable clamping and fixing.

[0030] Working principle: Before processing and positioning the hardware product, the pre-positioning mechanism 2 is first activated, and the servo motor 203 is powered on. Its output end is fixedly connected to the surface of the drive shaft 204, and the surface of the drive shaft 204 is firmly bonded to the inner wall of the fixed sleeve 205. The fixed sleeve 205 is connected to the pre-clamp 206. As the servo motor 203 rotates, the motion is transmitted to the drive shaft 204, causing the pre-clamp 206 to rotate synchronously, so that it is fitted along the outer circumference of the hardware product, realizing the initial clamping and axial positioning of the workpiece. This pre-positioning process ensures that the hardware product is in the correct position before the subsequent clamping operation, providing a basis for clamping. After the pre-positioning is completed, the clamping motor 301 is started, and the driving gear 302 connected to its output end begins to rotate and forms a meshing transmission with the driven gear 303, thereby driving the driven gear 303 to rotate synchronously. A fixed cylinder 304 is fixedly connected to the inner side of the driven gear 303. The fixed cylinder 304 has a stroke groove inside. 305, a sliding rod 306 is installed in the groove. The upper end of the sliding rod 306 is connected to the clamping plate 307, and the clamping plate 307 moves linearly along the guide surface of the fixed plate 308. As the fixed cylinder 304 rotates under power transmission, the structure of the stroke groove 305 converts the rotational motion into the axial displacement of the sliding rod 306, thereby pushing the clamping plate 307 to move towards the surface of the hardware product. The clamping stroke is automatically adjusted according to the actual size of the workpiece to achieve stable and reliable clamping and fixing. After the clamping mechanism 3 has completed the complete clamping of the hardware product, in order to avoid interference of the pre-positioning component with the processing process, the servo motor 203 can be started in reverse. The servo motor 203 drives the transmission shaft 204 to rotate in reverse, so that the fixed sleeve 205 and the pre-positioning clamp 206 connected to it are disengaged from the hardware product, and the pre-positioning function is released. At this time, the hardware product is only firmly fixed by the main clamping mechanism 3 and can enter the next stage of processing.

[0031] In summary, through the synergistic effect of the servo motor-driven pre-positioning mechanism, the clamping motor linkage gear transmission, and the stroke groove sliding engagement mechanism, the positioning and adaptive clamping of hardware products before processing are achieved, and the pre-positioning constraint is automatically released after clamping is completed. This effectively ensures the stability and positioning consistency of the workpiece clamping, and improves the processing accuracy and automation efficiency.

[0032] The operating table and protective cover used in this application can be additionally equipped with protective measures that are common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0033] It should be noted that (servo motor, clamping motor, driving gear and driven gear) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the device, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning fixture for processing hardware products, characterized in that: The device includes a positioning component (1) for processing hardware products. The positioning component (1) includes an operating table (101) and a support column (102). The lower end of the operating table (101) is fixedly connected to the lower end of the support column (102). The upper end of the operating table (101) is provided with a pre-positioning mechanism (2), and the lower end of the operating table (101) is provided with a clamping mechanism (3). The pre-positioning mechanism (2) is used to pre-position the hardware products before processing, and the clamping mechanism (3) is used to clamp the hardware products.

2. The positioning tool for processing of hardware according to claim 1, characterized in that: The pre-positioning mechanism (2) includes a protective cover (201), a fixing ring (202), a servo motor (203), a transmission shaft (204), a fixing sleeve (205), and a pre-positioning clamp (206). The surface of the protective cover (201) is fixedly connected to the surface of the fixing ring (202), the inner wall of the fixing ring (202) is fixedly connected to the surface of the servo motor (203), the output end of the servo motor (203) is fixedly connected to the surface of the transmission shaft (204), the surface of the transmission shaft (204) is fixedly connected to the inner wall of the fixing sleeve (205), and the surface of the fixing sleeve (205) is fixedly connected to the surface of the pre-positioning clamp (206).

3. The positioning fixture for processing of hardware according to claim 2, characterized in that: The inner wall of the operating table (101) is fixedly connected to the lower end of the protective cover (201), and the surface of the transmission shaft (204) is rotatably connected to the inner wall of the protective cover (201).

4. The positioning fixture for processing of hardware according to claim 2, characterized in that: The clamping mechanism (3) includes a clamping motor (301), a driving gear (302), a driven gear (303), a fixed cylinder (304), a stroke groove (305), a sliding rod (306), a clamping plate (307), and a fixed plate (308). The output end of the clamping motor (301) is fixedly connected to the inner wall of the driving gear (302). The tooth surface of the driving gear (302) meshes with the tooth surface of the driven gear (303). The inner side of the driven gear (303) is fixedly connected to the surface of the fixed cylinder (304). The stroke groove (305) is opened on the inner wall of the fixed cylinder (304). The inner wall of the stroke groove (305) is slidably connected to the lower end of the sliding rod (306). The upper end of the sliding rod (306) is fixedly connected to the lower end of the clamping plate (307). The lower end of the clamping plate (307) is slidably connected to the upper end of the fixed plate (308).

5. The positioning fixture for processing of hardware according to claim 4, characterized in that: The surface of the clamping motor (301) is fixedly connected to the upper end of the support column (102), and the surface of the fixing cylinder (304) is rotatably connected to the lower end of the operating table (101) through a bearing.

6. The positioning fixture for processing of hardware according to claim 5, characterized in that: The surface of the fixed plate (308) is fixedly connected to the inner wall of the operating table (101), and the upper surface of the sliding rod (306) is slidably connected to the inner wall of the fixed plate (308) through a sliding groove.

7. The positioning fixture for processing of hardware according to claim 6, characterized in that: The lower end of the sliding rod (306) is slidably connected to the inner wall of the fixed cylinder (304) through a sliding groove.

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