Positioning clamp for machining ultrahigh-hardness cutter

Abstract

The utility model relates to the technical field of tool machining clamps, and discloses an ultrahigh-hardness tool machining positioning clamp which comprises a base, a sliding block is slidably connected to the outer wall of the base, a fixing block is fixedly connected to the outer wall of the top of the base, and a first clamping mechanism driving the sliding block to move is installed on the outer wall of the base; according to the cutter clamping device, the sliding block can be driven to move close to the fixing block through the arranged first clamping mechanism, so that the left side and the right side of a cutter are clamped and positioned, the two pressing rods can be driven to move downwards through mutual cooperation of the second clamping mechanism, and therefore the two pressing rods are matched with the base, and the cutter is clamped and positioned. Compared with the prior art, the tool clamping and positioning device has the advantages that the tool can be positioned in four directions, deviation is effectively prevented, and the machining precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tool processing fixtures, and in particular to a positioning fixture for processing ultra-high hardness tools. Background Art

[0002] In the field of machining, the processing of ultra-high hardness tools is an important task. Due to the extremely high hardness of the tools, accurate positioning must be ensured during machining to avoid machining errors and tool damage.

[0003] Regarding the above-mentioned related technologies, the inventor believes that the existing positioning fixtures are complicated to operate, and due to the high hardness of the tool, the clamping and fixing effect of the fixture is poor during the processing, it is easy to offset, the processing accuracy is not high, and efficiency is low. Therefore, a positioning fixture for ultra-high hardness tool processing is proposed to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the existing positioning fixture is complicated to operate, and due to the high hardness of the tool, the clamping and fixing effect of the fixture is poor during the processing, it is easy to offset, the processing accuracy is low, and the efficiency is low, the present application provides a positioning fixture for ultra-high hardness tool processing.

[0005] The present application provides a positioning fixture for ultra-high hardness tool processing using the following technical solutions:

[0006] A positioning fixture for processing ultra-high hardness tools, comprising a base, an outer wall of the base being slidably connected to a slider, a top outer wall of the base being fixedly connected to a fixed block, an outer wall of the base being mounted with a first clamping mechanism for driving the slider to move, the first clamping mechanism comprising a fixed seat fixedly connected to the top outer wall of the base, an inner wall of the fixed seat being threadedly connected to a first screw, a slider being located between the fixed seat and the fixed block, and one end of the first screw facing the slider being rotatably connected to the slider via a connecting block;

[0007] A second clamping mechanism is installed on the top outer wall of the fixed block, and the second clamping mechanism includes a bracket fixedly connected to the outer wall of the middle section of the top of the fixed block. The bracket is rotatably connected to the outer wall of the fixed block by a second screw. The outer wall of the second screw is threadedly connected to a movable plate through the screw block, and the outer wall of the movable plate is fixedly connected to two clamping rods.

[0008] Preferably, the bracket is fixedly connected to the outer wall of the fixed block by two limiting rods, the movable plate is slidably connected to the outer walls of the two limiting rods, and the second screw is located between the two limiting rods.

[0009] Preferably, a servo motor is fixedly mounted on the top outer wall of the bracket, and the output shaft end of the servo motor passes through the bracket and is fixedly connected to the top end of the second screw.

[0010] Preferably, the top outer wall of the sliding block is provided with two embedding grooves, and the two embedding grooves are adapted to be plugged into the two pressing rods.

[0011] Preferably, one end of the first screw away from the slider is fixedly connected to a handle.

[0012] Preferably, fixing ears are fixedly connected to the outer walls on both sides of the base.

[0013] In summary, this application has the following beneficial technical effects:

[0014] Through the setting of the clamping mechanism 1, the slider can be driven to move close to the fixed block, thereby clamping and positioning the left and right sides of the tool. Then, through the mutual cooperation of the clamping mechanism 2, the two clamping rods can be driven to move downward, thereby cooperating with the base to clamp and position the upper and lower sides of the tool. Compared with the existing technology, the tool can be positioned in four directions, effectively preventing deviation and improving processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0016] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the application;

[0017] Figure 3 It is a partial cross-sectional view of an embodiment of the application.

[0018] Explanation of the accompanying reference numerals: 1. base; 2. slider; 3. fixing seat; 4. fixing block; 5. first screw; 6. handle; 7. connecting block; 8. fixing ear; 9. bracket; 10. limiting rod; 11. movable plate; 12. pressing rod; 13. second screw; 14. screw block; 15. servo motor; 16. embedding groove. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The embodiment of the present application discloses a positioning fixture for processing ultra-high hardness tools. Figure 1-3 A positioning fixture for processing ultra-high hardness tools includes a base 1, a slider 2 is slidably connected to the outer wall of the base 1, a fixed block 4 is fixedly connected to the top outer wall of the base 1, and a clamping mechanism that drives the slider 2 to move is installed on the outer wall of the base 1. The clamping mechanism includes a fixed seat 3 fixedly connected to the top outer wall of the base 1, and a first screw 5 is threadedly connected to the inner wall of the fixed seat 3. The slider 2 is located between the fixed seat 3 and the fixed block 4. The end of the first screw 5 facing the slider 2 is rotatably connected to the slider 2 through a connecting block 7, and the end of the first screw 5 away from the slider 2 is fixedly connected to a handle 6;

[0021] A clamping mechanism 2 is installed on the top outer wall of the fixed block 4, and the clamping mechanism 2 includes a bracket 9 fixedly connected to the outer wall of the top middle section of the fixed block 4. The bracket 9 is rotatably connected to the outer wall of the fixed block 4 by a second screw 13. The outer wall of the second screw 13 is threadedly connected to a movable plate 11 through a screw block 14, and the outer wall of the movable plate 11 is fixedly connected to two clamping rods 12.

[0022] The bracket 9 is fixedly connected to the outer wall of the fixed block 4 with two limiting rods 10 , the movable plate 11 is slidably connected to the outer walls of the two limiting rods 10 , and the second screw 13 is located between the two limiting rods 10 .

[0023] A servo motor 15 is fixedly mounted on the top outer wall of the bracket 9 , and the output shaft end of the servo motor 15 passes through the bracket 9 and is fixedly connected to the top end of the second screw rod 13 .

[0024] The top outer wall of the slider 2 is provided with two embedding grooves 16, which are adapted to be plugged into the two clamping rods 12. When the two clamping rods 12 are moved down and embedded into the embedding grooves 16, the clamping rods 12 can contact the tool with a smaller width.

[0025] The outer walls on both sides of the base 1 are fixedly connected with fixing ears 8, and the base 1 can be fixed at a specified position using bolts through the two fixing ears 8.

[0026] The implementation principle of the positioning fixture for processing ultra-high hardness tools in the embodiment of the present application is as follows: when in use, the tool is first placed between the slider 2 and the fixed block 4, and then the handle 6 is turned. The handle 6 drives the first screw 5 to rotate, and the first screw 5 rotates on the outer wall of the slider 2 through the connecting block 7. When the first screw 5 rotates on the inner surface of the fixing seat 3, the fixing seat 3 drives the first screw 5 to move. The first screw 5 can push the slider 2 to move through the connecting block 7. When the slider 2 moves toward the fixed block 4, it can cooperate with the fixed block 4 to clamp and position the left and right sides of the tool;

[0027] Then start the servo motor 15, and the output shaft of the servo motor 15 drives the second screw 13 to rotate. The second screw 13 rotates on the inner surface of the screw block 14, and the screw block 14 moves up and down on the outer wall of the second screw 13. The screw block 14 drives the movable plate 11 to slide on the outer walls of the two limit rods 10. The two limit rods 10 play a limiting role, which can prevent the movable plate 11 from being driven to rotate by the rotation of the second screw 13. When the movable plate 11 moves downward, it drives the two clamping rods 12 to move downward, thereby cooperating with the base 1 to position and clamp the upper and lower sides of the tool. At this time, the four directions of the tool are limited to ensure accurate positioning and prevent deviation.

[0028] It is worth noting that when the tool width is small and is located inside the slider 2 and the fixed block 4, the pressing rod 12 continues to move downward until it is embedded in the embedding groove 16, and can contact the tool with a smaller width, thereby improving the scope of application;

[0029] It is worth noting that the threads between the fixed seat 3 and the first screw 5, and the second screw 13 and the screw block 14 can achieve self-locking, and the self-locking condition of the thread depends on the helical angle of the thread, the friction coefficient and the load it is subjected to. The self-locking condition of the thread can be calculated by the following formula: Self-locking condition = friction coefficient × tan (helical angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above contents are all prior art, and in actual applications, the corresponding self-locking angle can be set according to the friction coefficient of the material. I will not go into details here. Therefore, when the fixed seat 3 drives the first screw 5 to move and the second screw 13 drives the screw block 14 to move, it can stop and self-lock at any time to prevent the first screw 5 from driving the slider 2 and the screw block 14 from driving the movable plate 11 to move to the specified position and then being unable to position.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A positioning fixture for ultra-high hardness tool processing, comprising a base (1), characterized in that: The outer wall of the base (1) is slidably connected to a slider (2), the top outer wall of the base (1) is fixedly connected to a fixed block (4), the outer wall of the base (1) is installed with a clamping mechanism that drives the slider (2) to move, the clamping mechanism comprising a fixed seat (3) fixedly connected to the top outer wall of the base (1), the inner wall of the fixed seat (3) is threadedly connected to a first screw (5), the slider (2) is located between the fixed seat (3) and the fixed block (4), and one end of the first screw (5) facing the slider (2) is rotatably connected to the slider (2) through a connecting block (7); The top outer wall of the fixed block (4) is provided with a second clamping mechanism, the second clamping mechanism comprising a bracket (9) fixedly connected to the outer wall of the top middle section of the fixed block (4), the bracket (9) and the outer wall of the fixed block (4) are rotatably connected by a second screw (13), the outer wall of the second screw (13) is threadedly connected to a movable plate (11) through a screw block (14), and the outer wall of the movable plate (11) is fixedly connected to two pressing rods (12).

2. The positioning fixture for ultra-high hardness tool processing according to claim 1, characterized in that: The bracket (9) is fixedly connected to the outer wall of the fixed block (4) with two limiting rods (10), the movable plate (11) is slidably connected to the outer walls of the two limiting rods (10), and the second screw (13) is located between the two limiting rods (10).

3. The positioning fixture for processing ultra-high hardness tools according to claim 2, characterized in that: A servo motor (15) is fixedly mounted on the top outer wall of the bracket (9), and the output shaft end of the servo motor (15) passes through the bracket (9) and is fixedly connected to the top end of the second screw rod (13).

4. The positioning fixture for processing ultra-high hardness tools according to claim 3, characterized in that: Two embedding grooves (16) are provided on the top outer wall of the sliding block (2), and the two embedding grooves (16) are adapted to be plugged into the two pressing rods (12).

5. The positioning fixture for processing ultra-high hardness tools according to claim 1, characterized in that: One end of the first screw rod (5) away from the slider (2) is fixedly connected to a handle (6).

6. The positioning fixture for processing ultra-high hardness tools according to claim 1, characterized in that: The outer walls on both sides of the base (1) are fixedly connected with fixing ears (8).

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