Lathe positioning tool

Abstract

The utility model discloses a lathe positioning tool, which belongs to the field of lathe tools and is characterized in that a ball screw component is mounted at the edge of the lower end of a partition plate, a connecting rod is mounted on a moving table of the ball screw component, the connecting rod penetrates through a kidney-shaped hole formed in the partition plate to be connected with a connecting strip, and the connecting strip is fixed with two mounting seats; a rotating handle is arranged at the outer end of the ball screw assembly, a moving table on the ball screw assembly is adjusted by rotating the rotating handle, then the position of a pulley on the sliding rail is adjusted, and therefore the relative position of the positioning chuck and the connecting base is finely adjusted. And the positioning flexibility is also greatly enhanced by introducing a fine adjustment structure. Due to the fact that each positioning clamping block can be independently adjusted, and the design of the sliding rail and the ball screw assembly allows the positioning chucks to freely move in multiple directions, the tool can easily cope with workpieces of different shapes and sizes, and diversified positioning requirements are met. The flexibility endows the tool with a wider application space, so that the tool can adapt to challenges of various machining tasks.

Description

Technical Field

[0001] The utility model relates to the field of lathe tooling, in particular to a lathe positioning tooling. Background Art

[0002] Lathe positioning fixture is an indispensable part of mechanical processing. It is responsible for ensuring the accuracy and stability of the workpiece during the processing. The core function of this fixture is to locate and clamp the workpiece. The role of positioning is to accurately determine the position of the workpiece on the machine tool, laying a solid foundation for subsequent processing operations. And clamping is to fix the workpiece firmly on the machine tool through a specific device to prevent displacement due to vibration or external force during the processing, ensuring the stability and accuracy of the processing.

[0003] In practical applications, the design and use of fixtures have a significant impact on positioning accuracy. The positioning datum of the fixture must be consistent with the design datum or measurement datum of the workpiece, which is the key to ensure that the workpiece can meet the accuracy and technical requirements specified in the drawing. However, if the fixture is not designed properly or operated properly, such as improper clamping force or loose fixtures, the workpiece may be offset during the cutting process, thus affecting the processing quality.

[0004] In addition, the accuracy and stability of the machine tool itself are also important factors affecting the performance of the positioning tooling. If the machine tool bed structure is not designed properly, vibration may occur during the processing, which will directly affect the positioning accuracy of the workpiece. At the same time, the assembly and debugging of the machine tool will also affect the positioning accuracy. If the mechanical installation position is inaccurate or the system parameter settings are unreasonable, positioning deviations may occur. Therefore, in the machining process, it is necessary to fully consider the design and use of the lathe positioning tooling as well as the accuracy and stability of the machine tool to ensure the processing quality and efficiency. Utility Model Content

[0005] The main purpose of the utility model is to provide a lathe positioning tool, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A lathe positioning tool, comprising a positioning chuck, a slide groove, a screw rod, and a positioning clamp block, wherein four slide grooves are annularly distributed on the positioning chuck, a screw rod is installed in each slide groove, and a corresponding positioning clamp block is installed on each screw rod;

[0008] The lower end of the positioning chuck is provided with a connecting seat, and a partition plate is installed in the seat of the connecting seat, a plurality of through holes are opened on the end surface of the partition plate, and two symmetrical slide rails are installed on the upper end of the partition plate, each of the slide rails is provided with a pulley adapted thereto, and the pulley is fixedly connected to the positioning chuck through the mounting seat, a ball screw assembly is installed on the lower end edge of the partition plate, and a connecting rod is installed on the moving platform of the ball screw assembly, the connecting rod passes through the waist hole opened in the partition plate and is connected to a connecting strip, and the connecting strip is fixed to the two mounting seats;

[0009] The outer end of the ball screw assembly is provided with a turning handle, and the turning handle is turned to adjust the moving platform on the ball screw assembly, and then adjust the position of the pulley on the slide rail, so as to fine-tune the relative position of the positioning chuck and the connecting seat.

[0010] Optionally, the positioning clamp block is provided with a first clamping cavity, a second clamping cavity and a third clamping cavity in sequence from the inside to the outside, the clamping sizes of the first clamping cavity, the second clamping cavity and the third clamping cavity are different, and the cavity walls of the first clamping cavity, the second clamping cavity and the third clamping cavity are provided with anti-slip strips;

[0011] Optionally, the connection seat is integrally designed with the partition plate, a plurality of through-hole arrays are distributed on the partition plate, two slide rails are arranged in parallel on the partition plate, and the slide rails are connected to the partition plate by bolts;

[0012] Optionally, the positioning chuck is fixed to the mounting seat by bolts, and the pulley is installed on the mounting seat by a rotating shaft, and the pulley is embedded in the groove of the slide rail;

[0013] Optionally, the connecting bar is fixed to the two mounting seats by bolts, the connecting rod is connected to the connecting bar by threads, and the connecting rod is fixed to the moving platform of the ball screw assembly by bolts;

[0014] Optionally, the ball screw assembly is divided into a threaded rod, a nut, a steel ball, a pre-load plate, a reverser and a dust protector, and the threaded rod passes through a connecting seat and is connected to the turning handle by a bolt.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, the positioning accuracy is significantly improved by adopting a unique fine-tuning structure. The structure uses the precise control function of the ball screw assembly to achieve fine adjustment of the relative position between the positioning chuck and the connecting seat, thereby ensuring that the workpiece is accurately positioned in the lathe processing area. This fine-tuning capability is particularly important in processing tasks that require extremely high precision, and can effectively eliminate processing quality problems caused by positioning errors.

[0017] In addition, the introduction of the fine-tuning structure has greatly enhanced the flexibility of positioning. Since each positioning clamp can be adjusted independently, and the design of the slide rail and ball screw assembly allows the positioning chuck to move freely in multiple directions, the tooling can easily handle workpieces of different shapes and sizes and meet diverse positioning needs. This flexibility gives the tooling a wider range of application space, enabling it to adapt to the challenges of various processing tasks.

[0018] In addition, the fine-tuning structure significantly improves the stability and reliability of positioning. By precisely controlling the clamping force of the positioning chuck on the workpiece and combining design elements such as anti-slip strips to enhance clamping stability, the tooling can ensure that the workpiece remains stable during processing. At the same time, the smooth operation and precise positioning of the ball screw assembly also effectively avoid positioning deviation problems caused by operating errors or mechanical wear, thereby further improving the stability and reliability of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a diagram showing the overall structure of the utility model;

[0021] Figure 3 This is an exploded view of the positioning chuck and the connecting seat of the utility model;

[0022] Figure 4 This is a display diagram of the slide rail and ball screw assembly of the utility model;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0024] In the figure: 1. positioning chuck; 2. slide groove; 3. screw; 4. positioning clamp; 5. first clamp cavity; 6. second clamp cavity; 7. third clamp cavity; 8. connecting seat; 9. partition plate; 10. through hole; 11. slide rail; 12. mounting seat; 13. pulley; 14. connecting strip; 15. connecting rod; 16. ball screw assembly; 17. turning handle. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 5As shown, a lathe positioning fixture mainly includes a positioning chuck 1, a slide 2, a screw 3 and a positioning clamp 4. In particular, four slides 2 are distributed in an annular manner on the positioning chuck 1, and these slides 2 provide installation space for the screw 3. Each screw 3 is equipped with a corresponding positioning clamp 4, thereby realizing multi-point distribution and adjustment of the clamping function.

[0027] At the lower end of the positioning chuck 1, we designed a connecting seat 8, in which a partition plate 9 is cleverly integrated. The end surface of the partition plate 9 is provided with multiple through holes 10, which not only enhances the air permeability of the structure, but also facilitates the installation of other components. Two symmetrical slide rails 11 are installed at the upper end of the partition plate 9, and each slide rail 11 is provided with an adapted pulley 13. The pulley 13 is fixedly connected to the positioning chuck 1 through the mounting seat 12. This design enables the positioning chuck 1 to move flexibly on the slide rail 11.

[0028] A ball screw assembly 16 is also installed at the lower edge of the partition plate 9. A connecting rod 15 is installed on the moving platform of this assembly, and the connecting rod 15 is connected to the connecting bar 14 through the waist hole, and the connecting bar 14 is fixedly connected to the two mounting seats 12. When the turning handle 17 at the outer end of the ball screw assembly 16 is turned, the position of the moving platform can be easily adjusted, and then the relative position of the positioning chuck 1 and the connecting seat 8 can be fine-tuned to achieve precise positioning.

[0029] In the design of the positioning clamp block 4, we specially set up three layers of clamping cavities: the first clamping cavity 5, the second clamping cavity 6 and the third clamping cavity 7. The clamping sizes of these clamping cavities are different to meet the clamping requirements of different workpieces. At the same time, anti-slip strips are also provided on the cavity walls of the clamping cavity to enhance the stability and safety of clamping.

[0030] The connecting seat 8 and the partition plate 9 are designed as one piece, which not only improves the stability of the structure but also simplifies the installation steps. A plurality of through holes 10 are distributed on the partition plate 9 in an array, which is both beautiful and practical. Two slide rails 11 are arranged in parallel on the partition plate 9 and connected by bolts to ensure the stability of the slide rails 11.

[0031] The positioning chuck 1 is also fixed to the mounting seat 12 by bolts to ensure the firmness of the structure. The pulley 13 is installed on the mounting seat 12 through a rotating shaft and embedded in the groove of the slide rail 11, so that the pulley 13 can slide smoothly on the slide rail 11.

[0032] The connecting bar 14 is fixed to the two mounting seats 12 by bolts, and the connecting rod 15 is connected to the connecting bar 14 by threads, which is convenient for disassembly and adjustment. The other end of the connecting rod 15 is fixed to the moving platform of the ball screw assembly 16 by bolts to ensure that the connecting rod 15 can move with the movement of the moving platform.

[0033] The ball screw assembly 16 includes a threaded rod, a nut, a steel ball, a pre-compression plate, a reverser, a dust collector, etc. The threaded rod passes through the connection seat 8 and is connected to the handle 17 by bolts, so that the user can drive the threaded rod to rotate by turning the handle 17, thereby realizing the movement of the mobile platform.

[0034] Usage process: Fix the lathe positioning fixture to the appropriate position of the lathe through the connecting seat 8. Ensure that the connecting seat 8 is stable, and the various components such as the slide rail 11, ball screw assembly 16, etc. are installed correctly without looseness; place the workpiece to be processed on the positioning chuck 1. According to the size and shape of the workpiece, select the appropriate positioning clamp 4 for clamping. Each positioning clamp 4 can be adjusted independently to ensure that the workpiece is stable and centered; adjust the clamping force between the positioning clamp 4 and the workpiece by rotating each screw 3. Ensure that the clamping force is moderate, which will not damage the workpiece and ensure stability during the processing; move the position of the positioning chuck 1 on the slide rail 11 so that the workpiece is in the center of the lathe processing area. This can be done by manually pushing the positioning chuck 1 or using external tools to assist; after confirming that the workpiece is firmly clamped and accurately positioned, the lathe processing operation can be started.

[0035] During fine-tuning: After the initial positioning, if the position of the workpiece needs to be further fine-tuned, the ball screw assembly 16 can be used for operation. Make sure that the handle 17 is in a rotatable state; gently turn the handle 17 to drive the threaded rod of the ball screw assembly 16 to rotate. This will drive the moving platform and the connecting rod 15, connecting bar 14 and mounting seat 12 connected to it to move together; while turning the handle 17, carefully observe the position change of the workpiece in the lathe processing area. According to needs, adjust the direction and force of rotation in time to make the workpiece reach the precise positioning position; when the workpiece position is adjusted in place, the locking mechanism or other fixing methods can be used to ensure that the positioning chuck 1 and the workpiece remain stationary during the processing process; after the fine-tuning is completed, confirm the position and clamping state of the workpiece again to ensure that there is no error before starting the formal processing operation; the lathe positioning tooling can realize the rapid and accurate positioning of the workpiece, and further ensure the processing accuracy and stability through the fine-tuning function.

[0036] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. However, the terms "include", "comprises" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or include elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lathe positioning tool, comprising a positioning chuck (1), a slide groove (2), a screw rod (3), and a positioning clamp block (4), wherein four of the slide grooves (2) are annularly distributed on the positioning chuck (1), a screw rod (3) is installed in each of the slide grooves (2), and a corresponding positioning clamp block (4) is installed on each of the screw rods (3), characterized in that: The lower end of the positioning chuck (1) is provided with a connecting seat (8), and a partition plate (9) is installed in the seat of the connecting seat (8), the end surface of the partition plate (9) is provided with a plurality of through holes (10), and the upper end of the partition plate (9) is provided with two symmetrical slide rails (11), each of the slide rails (11) is provided with a pulley (13) adapted thereto, and the pulley (13) is fixedly connected to the positioning chuck (1) through a mounting seat (12), a ball screw assembly (16) is installed at the lower end edge of the partition plate (9), and a connecting rod (15) is installed on the moving platform of the ball screw assembly (16), and the connecting rod (15) passes through a waist hole provided in the partition plate (9) and is connected to a connecting strip (14), and the connecting strip (14) is fixed to the two mounting seats (12); The outer end of the ball screw assembly (16) is provided with a turning handle (17), and the turning handle (17) is turned to adjust the moving platform on the ball screw assembly (16), thereby adjusting the position of the pulley (13) on the slide rail (11), thereby fine-tuning the relative position of the positioning chuck (1) and the connecting seat (8).

2. The lathe positioning tool according to claim 1, characterized in that: The positioning clamp block (4) is provided with a first clamp cavity (5), a second clamp cavity (6) and a third clamp cavity (7) in sequence from the inside to the outside. The clamping sizes of the first clamp cavity (5), the second clamp cavity (6) and the third clamp cavity (7) are different. The walls of the first clamp cavity (5), the second clamp cavity (6) and the third clamp cavity (7) are provided with anti-slip strips.

3. The lathe positioning tool according to claim 2, characterized in that: The connecting seat (8) and the partition plate (9) are designed as an integral whole, a plurality of through holes (10) are distributed in an array on the partition plate (9), two slide rails (11) are arranged in parallel on the partition plate (9), and the slide rails (11) and the partition plate (9) are connected by bolts.

4. The lathe positioning tool according to claim 3, characterized in that: The positioning chuck (1) is fixed to the mounting seat (12) by means of bolts, and the pulley (13) is mounted on the mounting seat (12) by means of a rotating shaft, and the pulley (13) is embedded in a groove of the slide rail (11).

5. The lathe positioning tool according to claim 4, characterized in that: The connecting bar (14) is fixed to the two mounting seats (12) by means of bolts, the connecting rod (15) is connected to the connecting bar (14) by means of threads, and the connecting rod (15) is fixed to the moving platform of the ball screw assembly (16) by means of bolts.

6. The lathe positioning tool according to claim 5, characterized in that: The ball screw assembly (16) is composed of a threaded rod, a nut, a steel ball, a pre-compression sheet, a reverser and a dust protector. The threaded rod passes through a connecting seat (8) and is connected to a turning handle (17) by means of bolts.

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