Automatic displacement tool for tool setting and positioning of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to an automatic displacement tool for tool setting and positioning of a numerical control machine tool, which comprises a displacement tool, a limit support is mounted above the displacement tool through screws, and a workpiece mounting component is mounted at the top of the limit support. A guide sliding rail fixed to the top of the displacement tool is arranged between the workpiece mounting assembly and the limiting support. Adjusting assemblies are arranged at the four corners of the workpiece mounting assembly. The adjusting assembly comprises telescopic inner rods fixed to the four corners of the top of the limiting support, the telescopic inner rods are sleeved with telescopic sleeves, connecting springs are connected between the telescopic sleeves and the limiting support, and limiting plates with the diameter larger than that of the telescopic sleeves are fixed to the tops of the telescopic sleeves. By means of the adjusting assembly, the position of the workpiece installation plate can be adjusted without screwing multiple sets of screws, time is saved, meanwhile, the workpiece installation plate and the limiting support cannot be separated, and therefore the situation that parts are lost is avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to an automatic positioning fixture for CNC machine tool tool setting. Background Technology

[0002] Automatic positioning fixtures for machine tools refer to fixtures that, through their built-in mechanical structures, transmission devices, and control systems, can automatically reposition workpieces or cutting tools to meet the needs of complex machining tasks.

[0003] Most existing automatic positioning fixtures for machine tools can only fix workpieces of one size, which limits the workpiece size.

[0004] A search revealed a publicly available technical solution, CN221833848U, which discloses an automatic positioning fixture for CNC machine tool tool setting. The fixture includes an automatic positioning fixture and a straight plate. The bottom left and right sides of the inner wall of the automatic positioning fixture are fixedly connected to the bottom of the straight plate. The inner wall of the straight plate is machined with a sliding groove, and an installation structure is connected to the inner wall of the sliding groove. Multiple second circular openings are machined at the rear of the automatic positioning fixture. A screw slides back and forth on the inner wall of the sliding groove, thereby adjusting the position of the support plate. Then, a ring rotates downwards on the outer wall of the screw, causing the ring to engage with the straight plate to press against the support plate, thus fixing its position. Next, the workpiece is placed on top of the support plate, and the workpiece is connected to the first circular opening with a bolt. Then, a vertical cylinder slides in the groove to adjust its position. Finally, a bolt passes through the workpiece connection and is threaded into the inner wall of the vertical cylinder, thus fixing the workpiece. This eliminates the limitations of using the automatic positioning fixture and ensures its normal operation.

[0005] In actual implementation, the above technical solution requires rotating multiple rings on multiple screws to separate the support plate from the straight plate when adjusting the position of the support plate. Twisting all the rings is time-consuming, and the rings are small in size. Once a ring is detached from the screw during twisting, it is difficult to find it if it is lost. Summary of the Invention

[0006] The purpose of this utility model is to provide an automatic positioning fixture for CNC machine tool tool setting, which can adjust the position of the workpiece mounting plate without tightening multiple sets of screws through the set adjustment components, saving time. At the same time, the workpiece mounting plate and the limit bracket will not separate, thereby avoiding the loss of parts, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic positioning fixture for CNC machine tool tool setting and positioning, comprising a positioning fixture, a limit bracket installed on the top of the positioning fixture by screws, and a workpiece mounting assembly installed on the top of the limit bracket, a guide slide rail fixed to the top of the positioning fixture being provided between the workpiece mounting assembly and the limit bracket, and adjustment components being provided at the four corners of the workpiece mounting assembly;

[0008] The adjustment assembly includes telescopic inner rods fixed at the four corners of the top of the limiting bracket, and a telescopic sleeve is sleeved on the outside of the telescopic inner rods. A connecting spring is connected between the telescopic sleeve and the limiting bracket, and a limiting plate with a diameter larger than the telescopic sleeve is fixed on the top of the telescopic sleeve.

[0009] The workpiece mounting assembly includes a workpiece mounting plate, and adjustment holes are provided at the four corners of the workpiece mounting plate.

[0010] Preferably, the telescopic sleeve is fixed inside the adjusting hole, and a connecting screw is threadedly connected to the middle of the workpiece mounting plate. The bottom of the connecting screw is mounted in the middle of the limiting bracket via a bearing.

[0011] Preferably, the workpiece mounting plate has multiple mounting holes inside, and two positioning sliding holes are provided on the inner side of the mounting holes.

[0012] Preferably, the adjusting component further includes a sliding block slidably disposed inside the guide rail, and a rubber pad is provided on the top of the sliding block. Both the rubber pad and the sliding block have connecting holes inside, and the telescopic sleeve passes through the inside of the connecting hole.

[0013] Preferably, the guide rail has a slot inside, and a stabilizing frame is fixedly installed between the guide rails.

[0014] Preferably, the top of the stabilizing frame is provided with a plurality of positioning pins, and the positioning pins are adapted to the positioning sliding holes.

[0015] Preferably, the workpiece mounting plate slides on the stabilizing frame via positioning pins and positioning sliding holes, and the limiting bracket is located at the bottom of the stabilizing frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By using the adjustable components, the workpiece mounting plate and the limiting bracket can be separated by the connecting screw, which can make the guide rail and the workpiece mounting plate move away from each other, so that the workpiece mounting plate can slide on the guide rail. This makes it easy to adjust the position of the workpiece mounting plate without having to tighten multiple sets of screws, saving time.

[0018] 2. The workpiece mounting assembly can perform secondary positioning of the workpiece mounting plate under the action of the positioning sliding hole, and the workpiece mounting plate and the limit bracket will not separate, thus avoiding the loss of parts. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall structural view of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the guide rail of this utility model;

[0022] Figure 3 This is a schematic diagram of the workpiece mounting assembly of this utility model;

[0023] Figure 4 For the present utility model Figure 3 A magnified view of A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Positioning fixture; 2. Guide slide rail; 3. Workpiece mounting assembly; 301. Workpiece mounting plate; 302. Adjustment hole; 303. Positioning slide hole; 304. Mounting hole; 4. Adjustment assembly; 401. Limiting plate; 402. Telescopic sleeve; 403. Telescopic inner rod; 404. Connecting spring; 405. Sliding block; 406. Rubber gasket; 407. Connecting hole; 5. Stabilizing bracket; 6. Connecting screw; 7. Positioning pin; 8. Limiting bracket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution:

[0028] Please see Figures 1 to 4An automatic positioning fixture for CNC machine tool tool setting includes a positioning fixture 1. A limit bracket 8 is installed on the top of the positioning fixture 1 by screws, and a workpiece mounting assembly 3 is installed on the top of the limit bracket 8. A guide slide rail 2 fixed to the top of the positioning fixture 1 is provided between the workpiece mounting assembly 3 and the limit bracket 8. Adjustment components 4 are provided at the four corners of the workpiece mounting assembly 3.

[0029] The adjustment component 4 includes telescopic inner rods 403 fixed at the four corners of the top of the limiting bracket 8, and a telescopic sleeve 402 is sleeved on the outside of the telescopic inner rods 403. A connecting spring 404 is connected between the telescopic sleeve 402 and the limiting bracket 8, and a limiting plate 401 with a diameter larger than the telescopic sleeve 402 is fixed on the top of the telescopic sleeve 402.

[0030] The workpiece mounting assembly 3 includes a workpiece mounting plate 301. Adjustment holes 302 are provided at the four corners of the workpiece mounting plate 301. The telescopic sleeve 402 is fixed inside the adjustment holes 302. A connecting screw 6 is threadedly connected to the middle of the workpiece mounting plate 301. The bottom of the connecting screw 6 is mounted in the middle of the limit bracket 8 through a bearing.

[0031] By adopting the above technical solution, the positioning fixture 1 can use a rotatable positioner as needed to drive the workpiece mounted on the positioning fixture 1 to rotate. The top of the positioning fixture 1 is fixedly mounted with a guide rail 2. The workpiece can be directly mounted on the top of the workpiece mounting plate 301 with screws. When the position of the workpiece mounting plate 301 needs to be adjusted, the connecting screw 6 can be rotated, separating the workpiece mounting plate 301 from the limiting bracket 8, thus causing the guide rail 2 and the workpiece mounting plate 301 to move away from each other, allowing the workpiece mounting plate 301 to slide on the guide rail 2. When the workpiece mounting plate 301 moves to a suitable position, the connecting screw 6 can be rotated in the opposite direction, causing the connecting screw 6 to move the workpiece mounting plate 301 downwards, thus bringing the workpiece mounting plate 301 closer to the limiting bracket 8. Simultaneously, the adjusting hole 3... The diameter of 02 is smaller than the outer diameter of the telescopic sleeve 402. When the workpiece mounting plate 301 and the limiting bracket 8 approach each other, the telescopic sleeve 402 can be driven to move downward and squeeze the connecting spring 404, so that the sliding block 405 abuts against the guide rail 2. At the same time, the positioning sliding hole 303 can be inserted into the positioning pin 7 from above to perform secondary limiting on the workpiece mounting plate 301, realizing the rapid fixation of the workpiece mounting assembly 3. It should be noted that the diameter of the adjusting hole 302 is matched with the outer diameter of the telescopic sleeve 402. The telescopic sleeve 402 is fixed inside the adjusting hole 302. When the workpiece mounting plate 301 moves downward, it can drive the telescopic sleeve 402 to move downward, so that the connecting spring 404 is compressed inward. The workpiece mounting plate 301 and the limiting bracket 8 will not separate, thus avoiding the loss of parts.

[0032] Specifically, such as Figure 4As shown, the workpiece mounting plate 301 has multiple mounting holes 304 inside, and two positioning sliding holes 303 are provided inside the mounting holes 304. The adjustment component 4 also includes a sliding block 405 that is slidably disposed inside the guide rail 2, and a rubber pad 406 is provided on the top of the sliding block 405. Both the rubber pad 406 and the sliding block 405 have connecting holes 407 inside, and the telescopic sleeve 402 passes through the inside of the connecting hole 407.

[0033] The guide slide rail 2 has a slot, and a stabilizing frame 5 is fixedly installed between the guide slide rails 2. The top of the stabilizing frame 5 is provided with multiple positioning pins 7, and the positioning pins 7 are adapted to the positioning sliding holes 303. The workpiece mounting plate 301 slides on the stabilizing frame 5 through the positioning pins 7 and the positioning sliding holes 303, and the limiting bracket 8 is set at the bottom of the stabilizing frame 5.

[0034] By adopting the above technical solution, when the workpiece mounting plate 301 slides on the top of the displacement fixture 1 via the sliding block 405, the telescopic inner rod 403 passes through the interior of the sliding block 405, and can drive the sliding block 405 to move synchronously under the action of the telescopic inner rod 403. By adjusting the distance between the sliding block 405 and the guide rail 2, the position of the sliding block 405 is fixed. When the sliding block 405 presses against the guide rail 2, the rubber pad 406 is simultaneously pressed downward and filled into the interior of the guide rail 2, thereby determining the position of the workpiece mounting plate 301. The workpiece can be directly mounted on top of the workpiece mounting plate 301 through the mounting hole 304, and displacement is achieved with the operation of the displacement fixture 1.

[0035] Working principle: The positioning fixture 1 can be equipped with a rotatable positioner as needed. The workpiece can be directly mounted above the workpiece mounting plate 301 through the mounting hole 304. As the positioning fixture 1 works, it achieves displacement. When it is necessary to adjust the position of the workpiece mounting plate 301, the connecting screw 6 is rotated, and the workpiece mounting plate 301 separates from the limiting bracket 8. This allows the guide rail 2 to move away from the workpiece mounting plate 301, thus allowing the workpiece mounting plate 301 to slide on the guide rail 2. When the workpiece mounting plate 301 moves to the appropriate position... The connecting screw 6 can be rotated in the opposite direction, which will drive the workpiece mounting plate 301 to move downward, so that the workpiece mounting plate 301 and the limiting bracket 8 are close to each other. At the same time, when the workpiece mounting plate 301 and the limiting bracket 8 are close to each other, the telescopic sleeve 402 can be driven to move downward and squeeze the connecting spring 404, so that the sliding block 405 is pressed against the guide rail 2. Meanwhile, the positioning sliding hole 303 can be inserted into the positioning pin 7 from above to perform secondary limiting on the workpiece mounting plate 301, so as to achieve rapid fixation of the workpiece mounting assembly 3.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic displacement tool for tool positioning of a numerical control machine tool, comprising a displacement tool (1), characterized in that: The upper part of the positioner (1) is provided with a limiting support (8) fixed by screws, and the top of the limiting support (8) is provided with a workpiece mounting assembly (3), and a guide slide rail (2) fixed to the top of the positioner (1) is arranged between the workpiece mounting assembly (3) and the limiting support (8), and four corners of the workpiece mounting assembly (3) are provided with an adjusting assembly (4); The adjusting assembly (4) comprises telescopic inner rods (403) fixed to the four corners of the top of the limiting support (8), and the outer part of the telescopic inner rods (403) is provided with telescopic sleeves (402), the telescopic sleeves (402) are connected with the limiting support (8) through connecting springs (404), and the top of the telescopic sleeves (402) is provided with limiting plates (401) with a larger diameter than the telescopic sleeves (402). The workpiece mounting assembly (3) comprises a workpiece mounting plate (301), and the four corners of the workpiece mounting plate (301) are provided with adjusting holes (302).

2. The automatic displacement tool of claim 1, wherein: The telescopic sleeves (402) are fixed in the adjusting holes (302), the middle part of the workpiece mounting plate (301) is provided with a connecting screw rod (6) through screw connection, and the bottom of the connecting screw rod (6) is connected with the middle part of the limiting support (8) through a bearing.

3. The automatic displacement tool of claim 2, wherein: The inside of the workpiece mounting plate (301) is provided with a plurality of mounting holes (304), and the inner side of the mounting holes (304) is provided with two positioning sliding holes (303).

4. The automatic displacement tooling for tool positioning of a numerically controlled machine tool according to claim 3, characterized in that: The adjusting assembly (4) further comprises a sliding block (405) slidingly arranged in the guide slide rail (2), and the top of the sliding block (405) is provided with a rubber pad (406), the rubber pad (406) and the sliding block (405) are both provided with connecting holes (407) in the inside, and the telescopic sleeves (402) penetrate into the connecting holes (407).

5. The automatic displacement tooling for tool positioning of a numerically controlled machine tool according to claim 4, characterized in that: The inside of the guide slide rail (2) is provided with a groove, and the guide slide rail (2) is fixedly provided with a stabilizing frame (5).

6. The automatic displacement tooling for tool positioning of a numerically controlled machine tool according to claim 5, characterized in that: The top of the stabilizing frame (5) is provided with a plurality of positioning pins (7), and the positioning pins (7) are matched with the positioning sliding holes (303).

7. The automatic displacement tooling for tool positioning of a numerically controlled machine tool according to claim 6, characterized in that: The workpiece mounting plate (301) is slidably arranged on the stabilizing frame (5) through the positioning pins (7) and the positioning sliding holes (303), and the limiting support (8) is arranged at the bottom of the stabilizing frame (5).

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