Positioning clamp for alloy milling cutter machining

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning clamp for alloy milling cutter machining, which comprises a positioning seat, a knob is rotatably mounted at the top end of the positioning seat, a rotating structure is in threaded connection with the middle of the knob, and two symmetrically arranged mounting seats are fixedly mounted at the front end of the rotating structure. And a clamping plate is fixedly mounted at the top end of the mounting seat. According to the utility model, the rotary knob drives the screw rod of the rotary structure to rotate, and the screw rod is pulled or pushed to move upwards or downwards through the threaded connection between the rotary knob and the screw rod, when the screw rod moves up and down, the connecting block at the other end of the screw rod also moves along with the screw rod, and when the connecting block moves, the connecting block passes through the sliding chutes at the two sides; the sliding blocks connected in a wedge-shaped mode on the two sides are pushed and pulled to move, and in the moving process of the sliding blocks, due to the fact that the extending blocks on the outer sides of the sliding blocks are in sliding connection with the positioning bases, the sliding blocks can move transversely when moving up and down along with the connecting blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for alloy milling cutter processing. Background Art

[0002] Alloy milling cutter is a kind of high hardness and high strength milling cutter. Its material is usually cemented carbide. It has the characteristics of high wear resistance and high cutting speed. When the alloy milling cutter is used on the machine tool, in order to fix the position of the alloy milling cutter, some positioning fixtures are generally used to fix the alloy milling cutter to prevent the alloy milling cutter from falling or shaking during work.

[0003] The patent specification with announcement number CN217776238U discloses a highly wear-resistant positioning fixture for milling cutter processing, which further clamps and fixes the milling cutter body by turning two knobs to push two arc-shaped jaws toward each other, thereby avoiding relative rotation between the milling cutter body and the positioning seat during use, which would affect the normal processing.

[0004] However, during use, the above scheme drives the two arc-shaped jaws by rotating the two knobs at the same time. During the rotation of the knobs, the staff cannot fix the milling cutter and the overall device, so the clamping effect may loosen. In view of this, a positioning fixture for alloy milling cutter processing is provided to overcome the above defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a positioning fixture for alloy milling cutter processing.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a positioning fixture for alloy milling cutter processing, comprising a positioning seat, a knob is rotatably mounted on the top of the positioning seat, and a rotating structure is connected to the middle thread of the knob;

[0007] A mounting seat is fixedly mounted on the front end of the rotating structure, and a clamping plate is fixedly mounted on the top end of the mounting seat;

[0008] The rotating structure includes a screw rod, a connecting block is installed on the side of the screw rod away from the knob through a rotating shaft, mounting blocks are fixedly installed on both sides of the connecting block, a slide groove is slidably connected to the outer side of the mounting block, a slider is slidably connected to one side of the slide groove, extension blocks are fixedly installed on both sides above the slider, the extension blocks are arranged horizontally, and a positioning rail matching the slider is provided at the connection between the positioning seat and the slider, and the positioning rail is provided on the positioning seat.

[0009] As a further description of the above technical solution: the connecting block is a trapezoidal structure, and the structure between the sliding block and the connecting block is a wedge-shaped structure.

[0010] As a further description of the above technical solution: a slide rail matching the extension block is provided at the connection between the positioning seat and the extension block, and the slide rail is provided on the positioning seat.

[0011] As a further description of the above technical solution: a clamping groove is provided inside each of the two clamping plates, and a positioning rod is fixedly installed on the inner wall of each of the clamping grooves.

[0012] As a further description of the above technical solution: the two clamping plates each include an upper clamping plate and a lower clamping plate, and a turning knob is rotatably installed on the outer side of one group of the lower clamping plates, and a turning rod is fixedly installed on the side of the turning knob close to the lower clamping plate, and the other end of the turning rod passes through the lower clamping plate, and the other end of the turning rod is rotatably installed on the lower clamping plate through a bearing.

[0013] As a further description of the above technical solution: the rotating rod is fixedly installed with a first bevel gear at the lower clamping plate, the outer side of the first bevel gear is meshingly connected with a second bevel gear, a threaded rod is fixedly installed above the second bevel gear, and a threaded groove matching the threaded rod is provided at the connection between the upper clamping plate and the threaded rod.

[0014] As a further description of the above technical solution: a fixing rod is fixedly installed on one side of the threaded rod and both sides of the other group of lower clamping plates, and a fixing plate is fixedly installed on the inner side of one group of upper clamping plates, and the other end of the fixing plate passes through the other group of upper clamping plates.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a positioning fixture for alloy milling cutter processing. The knob is manually turned so that the knob drives a middle threaded connecting screw rod to move upward or downward through the inner thread. The screw rod pulls or pushes a connecting block to move during the movement. When the connecting block moves, a slider on the outer side of the connecting block moves along a slide groove of the slider. Since the outer side of the slider is slidably mounted on the positioning seat through an extension block, the force of its up and down movement becomes a lateral movement force, thereby driving the mounting seat and the clamping plate on the top of the mounting seat to clamp the milling cutter through the movement of the slider.

[0017] The utility model designs a positioning fixture for alloy milling cutter processing, which drives a rotating rod to rotate through a rotating knob, and drives a first bevel gear and a second bevel gear to rotate through the rotating rod, drives a threaded rod to rotate through the second bevel gear, and moves the upper clamping plate up and down through a threaded groove between the upper clamping plate and the threaded rod, thereby adjusting the length of the overall positioning fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connection block and the slider of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the clamping plate of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the bottom end surface of the positioning seat of the utility model.

[0022] Legend:

[0023] 1. Positioning seat; 2. Knob; 3. Rotating structure; 301. Screw; 302. Connecting block; 303. Slide groove; 304. Sliding block; 305. Extension block; 306. Positioning rail; 4. Mounting seat; 5. Clamping plate; 6. Slide rail; 7. Positioning rod; 8. Upper clamping plate; 9. Lower clamping plate; 10. Knob; 11. Rotating rod; 12. First bevel gear; 13. Second bevel gear; 14. Threaded rod; 15. Fixed rod; 16. Fixed plate; 17. Clamping groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0025] Reference Figure 1-4 The utility model provides a positioning fixture for alloy milling cutter processing: comprising a positioning seat 1, a knob 2 is rotatably mounted on the top of the positioning seat 1, and a rotating structure 3 is threadedly connected to the middle of the knob 2;

[0026] A mounting seat 4 is fixedly mounted on the front end of the rotating structure 3, and a clamping plate 5 is fixedly mounted on the top end of the mounting seat 4;

[0027] The rotating structure 3 includes a screw rod 301, and a connecting block 302 is installed on the side of the screw rod 301 away from the knob 2 through a rotating shaft. Mounting blocks are fixedly installed on both sides of the connecting block 302. A slide groove 303 is slidably connected to the outer side of the mounting block. A slider 304 is slidably connected to one side of the slide groove 303. Extension blocks 305 are fixedly installed on both sides above the slider 304. The extension blocks 305 are horizontally arranged, and a positioning rail 306 matching the slider 304 is provided at the connection between the positioning seat 1 and the slider 304, and the positioning rail 306 is provided on the positioning seat 1.

[0028] As a further implementation of the above technical solution: the connecting block 302 is a trapezoidal structure, and the structure between the sliding block 304 and the connecting block 302 is a wedge-shaped structure.

[0029] As a further implementation scheme of the above technical scheme: a slide rail 6 matching the extension block 305 is provided at the connection between the positioning seat 1 and the extension block 305 , and the slide rail 6 is provided on the positioning seat 1 . Embodiment 2

[0030] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0031] As a further implementation scheme of the above technical scheme: a clamping groove 17 is opened inside the two clamping plates 5, and a positioning rod 7 is fixedly installed on the inner wall of the clamping groove 17. The clamping groove 17 and the positioning rod 7 can facilitate the clamping and positioning of the alloy milling cutter between the two clamping plates 5, and the positioning rod 7 can be inserted into the interior of the alloy milling cutter to prevent it from falling.

[0032] As a further implementation scheme of the above technical scheme: the two clamping plates 5 each include an upper clamping plate 8 and a lower clamping plate 9, wherein a turning knob 10 is rotatably installed on the outer side of one group of the lower clamping plates 9, and a turning rod 11 is fixedly installed on the side of the turning knob 10 close to the lower clamping plate 9, the other end of the turning rod 11 passes through the lower clamping plate 9, and the other end of the turning rod 11 is rotatably installed on the lower clamping plate 9 through a bearing, and the turning knob 10 can drive the turning rod 11 to rotate.

[0033] As a further implementation scheme of the above technical scheme: a rotating rod 11 is located at the lower clamping plate 9 and is fixedly installed with a first bevel gear 12, the outer side of the first bevel gear 12 is meshingly connected with a second bevel gear 13, a threaded rod 14 is fixedly installed above the second bevel gear 13, and a threaded groove matching the threaded rod 14 is provided at the connection between the upper clamping plate 8 and the threaded rod 14, the first bevel gear 12 and the second bevel gear 13 are driven to rotate by the rotation of the rotating rod 11, and the second bevel gear 13 drives the threaded rod 14 to rotate, and the upper clamping plate 8 is moved up and down through the threaded groove between the threaded rod 14 and the upper clamping plate 8.

[0034] As a further implementation scheme of the above technical scheme: a fixing rod 15 is fixedly installed on one side of the threaded rod 14 and on both sides of the other group of lower clamping plates 9, and a fixing plate 16 is fixedly installed on the inner side of one group of upper clamping plates 8, and the other end of the fixing plate 16 passes through the other group of upper clamping plates 8. The fixing rod 15 can fix the position of the upper clamping plate 8 through the fixing rod 15 when the threaded rod 14 drives the upper clamping plate 8 to move, and the height of the other group of upper clamping plates 8 can be adjusted at the same time through the fixing plate 16.

[0035] When the screw rod 301 moves up and down, the screw rod 301 drives the connecting block 302 to move accordingly. When the connecting block 302 moves, the slide groove 303 on one side of the slider 304 is slidably connected with the mounting block of the connecting block 302. However, since the extension block 305 on the outer side of the slider 304 is slidably connected with the positioning seat 1, the slider 304 is relatively moved laterally on the positioning seat 1 through the trapezoidal structure of the connecting block 302. In this way, the movement of the slider 304 can drive the movement of the mounting seat 4, and the mounting seat 4 can drive the upper clamping plate 5 to clamp the alloy milling cutter. During the clamping process, the alloy milling cutter can be inserted into the clamping groove 17 of the clamping plate 5 before the clamping plate 5 is about to close, or the alloy milling cutter can be attached to one of the clamping plates 5 before the knob 2 is turned. When the clamping plate 5 is fixed and closed, After the alloy milling cutter is installed, a limit nut can be installed on one side of the screw rod 301 to limit the screw rod 301 to prevent its subsequent rotation. Then the overall positioning seat 1 can be installed on the machine base for use. Finally, during use, if the length of the alloy milling cutter is short, the knob 10 can be manually turned to drive the rotating rod 11 and the first bevel gear 12 to rotate through the knob 10, and the second bevel gear 13 and the threaded rod 14 above the second bevel gear 13 are driven to rotate through the rotation of the first bevel gear 12. When the threaded rod 14 rotates, the upper clamping plate 8 is pushed or pulled by the threaded rod 14 through the threaded connection between the thread groove and the threaded rod 14. In this way, the distance between the upper clamping plate 8 and the lower clamping plate 9 can be adjusted, thereby increasing the length of the overall device, and during the adjustment process, the upper clamping plate 8 can drive another group of upper clamping plates 8 to move synchronously through the fixing plate 16, and the fixing rod 15 on one side of the threaded rod 14 and the fixing rod 15 at the other group of lower clamping plates 9 will fix the moving position of the upper clamping plate 8.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for alloy milling cutter machining, comprising a positioning seat (1), characterized in that: A knob (2) is rotatably mounted on the top of the positioning seat (1), and a rotating structure (3) is threadedly connected to the middle of the knob (2); A mounting seat (4) is fixedly mounted on the front end of the rotating structure (3), and a clamping plate (5) is fixedly mounted on the top end of the mounting seat (4); The rotating structure (3) comprises a screw rod (301), a connecting block (302) being rotatably mounted on a side of the screw rod (301) away from the knob (2), mounting blocks being fixedly mounted on both sides of the connecting block (302), a sliding groove (303) being slidably connected to the outer side of the mounting block, a sliding block (304) being slidably connected to one side of the sliding groove (303), extension blocks (305) being fixedly mounted on both sides above the sliding block (304), the extension blocks (305) being arranged in a transverse direction, and a positioning rail (306) matching the sliding block (304) being provided at a connection between the positioning seat (1) and the sliding block (304), the positioning rail (306) being provided on the positioning seat (1).

2. The positioning fixture for alloy milling cutter machining according to claim 1, characterized in that: The connecting block (302) is a trapezoidal structure, and a wedge-shaped structure is formed between the sliding block (304) and the connecting block (302).

3. The positioning fixture for alloy milling cutter machining according to claim 1, characterized in that: A slide rail (6) matching the extension block (305) is provided at the connection between the positioning seat (1) and the extension block (305), and the slide rail (6) is provided on the positioning seat (1).

4. The positioning fixture for alloy milling cutter machining according to claim 1, characterized in that: A clamping groove (17) is provided inside each of the two clamping plates (5), and a positioning rod (7) is fixedly mounted on the inner wall of each of the clamping grooves (17).

5. The positioning fixture for alloy milling cutter machining according to claim 1, characterized in that: The two clamping plates (5) each comprise an upper clamping plate (8) and a lower clamping plate (9), wherein a rotating knob (10) is rotatably mounted on the outer side of one set of the lower clamping plates (9), a rotating rod (11) is fixedly mounted on one side of the rotating knob (10) close to the lower clamping plate (9), the other end of the rotating rod (11) passes through the lower clamping plate (9), and the other end of the rotating rod (11) is rotatably mounted on the lower clamping plate (9) via a bearing.

6. The positioning fixture for alloy milling cutter machining according to claim 5, characterized in that: The rotating rod (11) is fixedly mounted with a first bevel gear (12) at the lower clamping plate (9), the outer side of the first bevel gear (12) is meshingly connected with a second bevel gear (13), a threaded rod (14) is fixedly mounted above the second bevel gear (13), and a threaded groove matching the threaded rod (14) is provided at the connection between the upper clamping plate (8) and the threaded rod (14).

7. The positioning fixture for alloy milling cutter machining according to claim 6, characterized in that: A fixing rod (15) is fixedly mounted on one side of the threaded rod (14) and on both sides of the other group of lower clamping plates (9), and a fixing plate (16) is fixedly mounted on the inner side of one group of upper clamping plates (8), and the other end of the fixing plate (16) passes through the other group of upper clamping plates (8).

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