A precision-adjustable tool holder

Abstract

The utility model relates to the technical field of tool rest, and specifically a precision adjustable tool rest, including bottom plate, be equipped with the tool rest seat on the bottom plate, the lower baffle is slidably connected on the tool rest seat, both sides of the lower baffle are rotatably connected with threaded rod, the threaded rod is screw thread connection has the drive block, and the drive block is slidably connected between the lower baffle, the top of drive block is in contact with the upper baffle, and the threaded rod is rotated, and the drive block that is screw thread connection with threaded rod and is slidably connected with the lower baffle slides, because the drive block top opens the slope and the upper baffle is slidably connected with the slope, and the drive block slides and will push the upper baffle and slide along the guide column, and the position of the upper baffle is observed, and after its to accurate height, stop rotating the threaded rod, the height of the upper baffle and the tool is accurately adjusted at the moment, and the operation is simple, and the subsequent tool is convenient for the alignment required to process the workpiece, and the flexibility is strong.

Description

Technical Field

[0001] This utility model relates to a tool holder, specifically a precision adjustable tool holder, and belongs to the field of tool holder technology. Background Technology

[0002] The tool holder is the core component of a machining center that enables automatic tool storage, selection, and exchange. It works in conjunction with the spindle to complete multi-process automatic machining. Its core components are the tool magazine (which stores multiple tools) and the tool changer (which precisely switches between tools). It features automation, high precision, and compatibility with multiple types of tools, which can reduce manual intervention and improve machining efficiency and accuracy.

[0003] However, existing tool holders typically fix tools by directly screwing locking bolts into the tool holder, which directly contact the tool for fixation. However, since the position of the tool slot on the tool holder is fixed, when the height of the tool needs to be adjusted, shims need to be added or removed at the bottom of the tool. This results in low operating efficiency, poor stability, and low adjustment accuracy. A patent with publication number CN223418366U proposes a tool holder with ultra-high precision adjustable displacement. This tool holder detachably connects the tool to a small tool holder and allows the tool to move with high precision in both vertical and horizontal directions. However, it is difficult to adjust the vertical height of the tool, resulting in poor flexibility. Utility Model Content

[0004] The purpose of this invention is to provide a precision-adjustable tool holder to solve the above-mentioned problems. By using pins to fix the upper and lower support plates at different heights of the tool holder seat, the installation height of the tool can be quickly adjusted. At the same time, the trapezoidal drive block on the lower support plate controls the up and down movement of the upper support plate, thereby achieving precise adjustment of the tool height.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a precision-adjustable tool holder, including a base plate, a mounting structure on the base plate, the mounting structure including a tool holder seat, a fine-tuning structure connected to the tool holder seat, the fine-tuning structure including a lower support plate, the lower support plate slidably connected to the tool holder seat, threaded rods rotatably connected to both sides of the lower support plate, a driving block threadedly connected to the threaded rod, the driving block slidably connected to the lower support plate, an upper support plate slidably connected to the tool holder seat, the bottom surface of the upper support plate abutting against the lower support plate, and the top of the driving block abutting against the upper support plate.

[0006] Preferably, two pins are slidably connected to the lower support plate, and multiple insertion holes are provided on the tool holder, with the pins engaging with adjacent insertion holes.

[0007] Preferably, guide posts are fixedly connected to the four corners of the lower support plate, and the upper support plate is slidably connected to the guide posts.

[0008] Preferably, the top of the driving block is provided with an inclined surface, and the upper support plate is in sliding fit with the inclined surface at the top of the driving block.

[0009] Preferably, both the lower support plate and the upper support plate are of a "mouth"-shaped structure, a cutter abuts against the upper support plate, a plurality of bolts are threadedly connected to the tool rest base, and the bottoms of two of the bolts abut against the cutter.

[0010] Preferably, the bottom plate is provided with a lateral movement structure, a positioning pin is connected to the lateral movement structure, the positioning pin penetrates through the tool rest base, the top of the positioning pin is threadedly connected with a locking handle, and the bottom of the locking handle abuts against the tool rest base.

[0011] Preferably, the bottom plate is provided with a forward movement structure, the forward movement structure comprises a first lead screw, the first lead screw is rotatably connected to the bottom plate, a sliding plate is slidably connected to the bottom plate, a connecting block is fixedly connected to the sliding plate, the connecting block is in sliding connection with the inner wall of the bottom plate, and the connecting block is in threaded connection with the first lead screw.

[0012] Preferably, the end of the first lead screw is fixedly connected with a first handle, and the lateral movement structure is mounted on the sliding plate.

[0013] Preferably, the lateral movement structure comprises a base, the base is fixedly connected to the sliding plate, a mounting plate is slidably connected to the base, a gib is clamped between the base and the mounting plate, a second lead screw is rotatably connected to the mounting plate, and the second lead screw is in threaded connection with the base.

[0014] Preferably, the end of the second lead screw is fixedly connected with a second handle, the top surface of the mounting plate is fixedly connected with the positioning pin, and the top surface of the mounting plate abuts against the tool rest base.

[0015] The beneficial effects of the utility model are as follows: the bottom plate is provided with the tool rest base, the lower support plate is slidably connected to the tool rest base, both sides of the lower support plate are rotatably connected with threaded rods, the driving blocks are threadedly connected to the threaded rods, the driving blocks are slidably connected with the lower support plate, the upper support plate is slidably connected to the tool rest base, the bottom surface of the upper support plate abuts against the lower support plate, the top of the driving block abuts against the upper support plate, the threaded rods on both sides of the lower support plate are rotated to drive the driving blocks which are threadedly connected with the threaded rods and slidably connected with the lower support plate to slide. Since the top of the driving block is provided with the inclined surface and the upper support plate is in sliding fit with the inclined surface, and the upper support plate is slidably connected with the guide posts fixed at the four corners of the lower support plate, the driving block will push the upper support plate to slide up and down along the guide posts when sliding. Observe the position of the upper support plate, stop rotating the threaded rods after it reaches a precise height, at this time, the heights of the upper support plate and the cutter are precisely adjusted, the operation is simple and convenient, the subsequent alignment of the cutter with the workpiece to be machined is facilitated, and the flexibility is strong. Brief Description of the Drawings

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the skateboard and the positioning pin of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the tool holder and the bolt of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the connecting block and the first lead screw of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the base and the second lead screw of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure between the upper support plate and the drive block of this utility model.

[0022] In the diagram: 1. Base plate; 2. Forward movement structure; 201. First lead screw; 202. First handle; 203. Slide plate; 204. Connecting block; 3. Side movement structure; 301. Base; 302. Mounting plate; 303. Inlay; 304. Second lead screw; 305. Second handle; 4. Mounting structure; 401. Tool holder; 402. Locking handle; 403. Positioning pin; 5. Fine adjustment structure; 501. Lower support plate; 502. Pin; 503. Insertion hole; 504. Guide post; 505. Upper support plate; 506. Threaded rod; 507. Drive block; 508. Bolt; 6. Tool. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6As shown, a precision-adjustable tool holder includes a base plate 1, on which a mounting structure 4 is provided. The mounting structure 4 includes a tool holder seat 401. The base plate 1 has a side-shifting structure 3, on which a positioning pin 403 is connected. The positioning pin 403 passes through the tool holder seat 401. A locking handle 402 is threadedly connected to the top of the positioning pin 403. The bottom of the locking handle 402 abuts against the tool holder seat 401. Then, the tool holder seat 401 is fixed by placing it on the top surface of the mounting plate 302, so that the positioning pin 403 passes through the tool holder seat 401. The locking handle 402 is then threadedly connected to the top of the positioning pin 403. The locking handle 402 is tightened until its bottom abuts against the tool holder seat 401. At this point, the tool holder seat 401 is firmly fixed to the mounting plate 302, with strong stability.

[0025] As a technical optimization of this utility model, a fine-tuning structure 5 is connected to the tool holder 401. The fine-tuning structure 5 includes a lower support plate 501. Next, the height of the tool 6 is adjusted. The lower support plate 501 is slidably connected to the tool holder 401, and two pins 502 are slidably connected to the lower support plate 501. The tool holder 401 has multiple insertion holes 503. The pins 502 are engaged with adjacent insertion holes 503. First, remove the two pins 502 on the lower support plate 501, and push the lower support plate 501 to slide along the tool holder 401. When it slides to the insertion hole 503 at the corresponding height on the tool holder 401, insert the pin 502 into the adjacent insertion hole. Hole 503 engages, allowing for coarse adjustment of the height of the lower support plate 501. Threaded rods 506 are rotatably connected to both sides of the lower support plate 501, with drive blocks 507 threaded onto each rod 506. Drive blocks 507 are slidably connected to the lower support plate 501. An upper support plate 505 is slidably connected to the tool holder 401. Guide posts 504 are fixedly connected to the four corners of the lower support plate 501, with the upper support plate 505 slidably connected to the guide posts 504. The bottom surface of the upper support plate 505 abuts against the lower support plate 501, and the top of the drive block 507 abuts against the upper support plate 505. The top of the drive block 507 has an inclined surface. The upper support plate 505 and drive block 507... The top inclined surfaces slide together. Both the lower support plate 501 and the upper support plate 505 have a "U"-shaped structure. The upper support plate 505 abuts against the tool 6. The tool holder 401 is threaded with multiple bolts 508, two of which have their bottoms abutting against the tool 6. After fine adjustment, the threaded rods 506 on both sides of the lower support plate 501 are rotated, which drives the drive block 507, which is threaded to the threaded rods 506 and slidably connected to the lower support plate 501, to slide. Because the top of the drive block 507 has an inclined surface and the upper support plate 505 slides with this inclined surface, and the guide posts 504 fixed at the four corners of the upper support plate 505 and the lower support plate 501 are slidably connected, the drive block 507... 07 When sliding, the upper support plate 505 will be pushed up and down along the guide post 504. Observe the position of the upper support plate 505. Stop rotating the threaded rod 506 after it reaches the precise height. At this time, the height of the upper support plate 505 and the tool 6 are precisely adjusted. The operation is simple and convenient for the tool 6 to be aligned with the workpiece to be processed. It is highly flexible. Finally, fix the tool 6. Place the tool 6 on the upper support plate 505. Locate the multiple bolts 508 threaded on the tool holder 401 and tighten these bolts 508 so that the bottom of two of the bolts 508 abuts against the tool 6. Fix the tool 6 stably on the upper support plate 505 and complete the use of the tool holder.

[0026] As a technical optimization of this utility model, a forward moving structure 2 is provided on the base plate 1. The forward moving structure 2 includes a first lead screw 201, which is rotatably connected to the base plate 1. A sliding plate 203 is slidably connected to the base plate 1, and a connecting block 204 is fixedly connected to the sliding plate 203. The connecting block 204 is slidably connected to the inner wall of the base plate 1, and the connecting block 204 is threadedly connected to the first lead screw 201. A first handle 202 is fixedly connected to the end of the first lead screw 201. The entire base plate 1 of the tool holder is placed stably in the designated installation position of the processing equipment, ensuring that the base plate 1 fits tightly against the equipment table without shaking. Then, the forward moving position is adjusted by holding and rotating the first handle 202, which drives the first lead screw 201 to rotate synchronously. Under the action of threaded transmission, the connecting block 204 will drive the sliding plate 203 to slide back and forth along the base plate 1. The movement of the sliding plate 203 is observed. After it drives the upper structure to the required front and back position, the first handle 202 is stopped. A side moving structure 3 is installed on the sliding plate 203.

[0027] As a technical optimization of this utility model, the lateral displacement structure 3 includes a base 301, a mounting plate 302 slidably connected to a sliding plate 203, an insert 303 engaged between the base 301 and the mounting plate 302, a second lead screw 304 rotatably connected to the mounting plate 302, the second lead screw 304 being threadedly connected to the base 301, and a second handle 305 fixedly connected to the end of the second lead screw 304. Lateral displacement position adjustment is then performed by rotating the second handle 305, thereby driving the... The fixed second lead screw 304 rotates and is threadedly connected to the base 301 fixed on the slide plate 203. The mounting plate 302 is slidably connected to the base 301, and a strip 303 is engaged between them to reduce the sliding gap. Under the threaded drive of the second lead screw 304, the mounting plate 302 slides left and right along the base 301. After the mounting plate 302 reaches the appropriate left and right position, the second handle 305 stops rotating. The top surface of the mounting plate 302 is fixedly connected to the positioning pin 403, and the top surface of the mounting plate 302 abuts against the tool holder seat 401.

[0028] In use, the base plate 1 of the entire tool holder is placed stably in the designated installation position on the processing equipment, ensuring that the base plate 1 fits tightly against the equipment table without any shaking. Then, the forward position adjustment is performed by grasping and rotating the first handle 202, causing the first lead screw 201 to rotate synchronously. Under the action of the threaded transmission, the connecting block 204 will cause the sliding plate 203 to slide back and forth along the base plate 1. Observe the movement of the sliding plate 203. Once it has driven the upper structure to the desired forward or backward position, stop rotating the first handle 202. Next, the lateral position adjustment is performed by rotating the second handle 305, causing the second lead screw 304 fixed thereto to rotate. The second lead screw 304 and the base 3 fixed to the sliding plate 203... 01. A threaded connection is made, and the mounting plate 302 is slidably connected to the base 301. A strip 303 is engaged between the two to reduce sliding clearance. Under the threaded drive of the second lead screw 304, the mounting plate 302 slides left and right along the base 301. After the mounting plate 302 reaches the appropriate left or right position, the second handle 305 is stopped. Then, the tool holder 401 is fixed by placing the tool holder 401 on the top surface of the mounting plate 302, so that the positioning pin 403 passes through the tool holder 401. Then, the locking handle 402 is threaded onto the top of the positioning pin 403. The locking handle 402 is tightened until its bottom abuts against the tool holder 401. At this point, the tool holder 401 is firmly fixed to the mounting plate 302, ensuring stability. With high stability, the next step is to adjust the height of the tool 6. First, remove the two pins 502 on the lower support plate 501 and push the lower support plate 501 to slide along the tool holder 401. When it slides to the corresponding height insertion hole 503 on the tool holder 401, insert the pins 502 into the adjacent insertion hole 503 to complete the engagement, thus achieving a coarse adjustment of the height of the lower support plate 501. Then, perform a fine adjustment by rotating the threaded rods 506 on both sides of the lower support plate 501, which drives the drive block 507, which is threadedly connected to the threaded rods 506 and slidably connected to the lower support plate 501, to slide. Because the top of the drive block 507 has an inclined surface and the upper support plate 505 slides in cooperation with this inclined surface, and at the same time, the guide posts fixed at the four corners of the upper support plate 505 and the lower support plate 501 are also connected. The 504 sliding connection allows the drive block 507 to slide, pushing the upper support plate 505 up and down along the guide post 504. Observe the position of the upper support plate 505, and stop rotating the threaded rod 506 when it reaches the precise height. At this time, the height of the upper support plate 505 and the tool 6 are precisely adjusted. The operation is simple and facilitates the subsequent alignment of the tool 6 with the workpiece to be processed. It is highly flexible. Finally, fix the tool 6 by placing it on the upper support plate 505, locating the multiple threaded bolts 508 on the tool holder 401, and tightening these bolts 508 so that the bottom of two of the bolts 508 abuts against the tool 6, thus stably fixing the tool 6 on the upper support plate 505 and completing the operation of the entire tool holder.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision-adjustable tool holder, comprising a base plate (1), wherein the base plate (1) is provided with a mounting structure (4), the mounting structure (4) comprising a tool holder seat (401), wherein the base plate (1) is provided with a tool holder seat (401), characterized in that: The tool rest base (401) is connected with a fine adjustment structure (5), the fine adjustment structure (5) includes a lower support plate (501), the lower support plate (501) is slidably connected to the tool rest base (401), both sides of the lower support plate (501) are rotatably connected with threaded rods (506), a driving block (507) is threadedly connected to the threaded rod (506), the driving block (507) is slidably connected with the lower support plate (501), an upper support plate (505) is slidably connected to the tool rest base (401), the bottom surface of the upper support plate (505) abuts against the lower support plate (501), and the top of the driving block (507) abuts against the upper support plate (505).

2. The precision-adjustable tool holder according to claim 1, characterized in that: Two pins (502) are slidably connected to the lower support plate (501), a plurality of insertion holes (503) are formed on the tool rest base (401), and the pins (502) are mutually engaged with the adjacent insertion holes (503).

3. The precision-adjustable tool holder according to claim 2, characterized in that: Guide posts (504) are fixedly connected to the four corners of the lower support plate (501), and the upper support plate (505) is slidably connected with the guide posts (504).

4. The precision-adjustable tool holder according to claim 3, characterized in that: The top of the driving block (507) is provided with an inclined surface, and the upper support plate (505) is in sliding fit with the inclined surface at the top of the driving block (507).

5. The precision-adjustable tool holder according to claim 3, characterized in that: Both the lower support plate (501) and the upper support plate (505) are of a "square" shaped structure, the upper support plate (505) abuts against a cutting tool (6), a plurality of bolts (508) are threadedly connected to the tool rest base (401), and the bottoms of two of the bolts (508) abut against the cutting tool (6).

6. The precision-adjustable tool holder according to claim 1, characterized in that: The bottom plate (1) is provided with a lateral movement structure (3), the lateral movement structure (3) is connected with a positioning pin (403), the positioning pin (403) penetrates through the tool rest base (401), the top of the positioning pin (403) is threadedly connected with a locking handle (402), and the bottom of the locking handle (402) abuts against the tool rest base (401).

7. The precision-adjustable tool holder according to claim 6, characterized in that: The bottom plate (1) is provided with a forward movement structure (2), the forward movement structure (2) includes a first lead screw (201), the first lead screw (201) is rotatably connected to the bottom plate (1), a sliding plate (203) is slidably connected to the bottom plate (1), a connecting block (204) is fixedly connected to the sliding plate (203), the connecting block (204) is slidably connected with the inner wall of the bottom plate (1), and the connecting block (204) is threadedly connected with the first lead screw (201).

8. The precision-adjustable tool holder according to claim 7, characterized in that: The end of the first lead screw (201) is fixedly connected with a first handle (202), and the lateral movement structure (3) is mounted on the sliding plate (203).

9. A precision-adjustable tool holder according to claim 8, characterized in that: The lateral movement structure (3) includes a base (301), the base (301) is fixedly connected to the sliding plate (203), a mounting plate (302) is slidably connected to the base (301), a strip (303) is engaged between the base (301) and the mounting plate (302), a second lead screw (304) is rotatably connected to the mounting plate (302), and the second lead screw (304) is threadedly connected with the base (301).

10. A precision-adjustable tool holder according to claim 9, characterized in that: The end of the second lead screw (304) is fixedly connected to a second handle (305), and the top surface of the mounting plate (302) is fixedly connected to a positioning pin (403). The top surface of the mounting plate (302) abuts against the tool holder seat (401).

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