Auxiliary positioning tool clamp for screwer machining

Abstract

The utility model discloses an auxiliary positioning tool clamp for screwer machining, and relates to the technical field of tool clamps. The clamping device comprises a three-jaw chuck, a cutter bar is arranged on the side face of the three-jaw chuck, the cutter bar is a cylindrical bar with an inverted-T-shaped section, a positioning groove is formed in the side face of the cutter bar and is a rectangular groove, and a clamping mechanism capable of clamping the cutter bar is arranged at the position, corresponding to the cutter bar, of the side face of the three-jaw chuck. And a positioning mechanism capable of positioning the cutter bar is arranged on the side surface of the clamping mechanism corresponding to the cutter bar. The thread turning device can be matched with cutter bars of different specifications to be operated and used, threads are turned on the cutter bars after the positioning grooves are machined, so that the positions, corresponding to the positioning grooves, of the cutter bars with the turned threads are fixed, and then side face grooves are milled through positioning and fixing of the positioning grooves, so that operation is faster and more convenient. And the operation of finding an original point before machining is not needed, so that the thread turning and groove milling effects of the screwer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and particularly relates to an auxiliary positioning tooling fixture for thread cutter processing. Background Technique

[0002] A thread milling cutter is a rotary cutter with one or more cutting teeth used for milling processing. A fixture is used to fix the processing object during the mechanical manufacturing process. During the processing of the thread cutter, a fixture is required to clamp and fix the thread milling cutter. When the existing thread cutter is processed, generally, a round bar is clamped by a three-jaw chuck to perform rectangular threading operation, then a positioning groove is processed on the side of the round bar, and finally, a milling groove operation is performed on the side of the round bar by a milling machine;

[0003] However, in such a processing method, when processing the positioning groove on the cylinder after threading, it is necessary to manually find the position and then process it. And when milling the side groove, since the position of the positioning groove cannot be completely fixed, it is necessary to find the origin position through a side head and then perform the milling groove processing operation, which affects the processing efficiency. Therefore, an auxiliary positioning tooling fixture for thread cutter processing is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary positioning tooling fixture for thread cutter processing to solve the problems of the auxiliary positioning tooling fixture for thread cutter processing.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] An auxiliary positioning tooling fixture for thread cutter processing includes a three-jaw chuck. A tool shank is arranged on the side of the three-jaw chuck. The tool shank is a cylindrical rod with a convex-shaped cross-section. A positioning groove is arranged on the side of the tool shank. The positioning groove is a rectangular groove. A clamping mechanism for clamping the tool shank is arranged on the side of the three-jaw chuck corresponding to the position of the tool shank. A positioning mechanism for positioning the tool shank is arranged on the side of the clamping mechanism corresponding to the position of the tool shank;

[0007] The clamping mechanism includes a mounting frame. A movable clamping block and a support block are arranged on the side of the mounting frame. A rotatable adjusting plate is arranged on the side of the support block. A rotatable restraint block is arranged on the side of the adjusting plate. A support cylinder for support is arranged on the side of the restraint block;

[0008] The positioning mechanism includes a slot. A movable positioning block is arranged on the side of the slot. A movable guiding block is arranged on the side of the positioning block.

[0009] Further, the clamping mechanism includes a mounting bracket provided on the side of the three-jaw chuck. A fixing plate is fixedly mounted on the side of the mounting bracket. An activity slot is formed on the side of the mounting bracket. An activity rod is movably mounted inside the activity slot. A clamping block is fixedly mounted on the side of the activity rod. A support block is fixedly mounted on the inner side of the clamping block. A guiding rod is fixedly mounted on the side of the activity rod.

[0010] Further, the clamping mechanism further includes an adjusting plate provided on the side of the mounting bracket. An adjusting slot is obliquely formed on the side of the adjusting plate. A mounting slot is formed on the side of the mounting bracket. A constraint block is movably mounted inside the mounting slot. A support cylinder is fixedly mounted on the wall surface of the mounting slot.

[0011] Further, the fixing plate is attached to the side of the three-jaw chuck and fixed to the side of the three-jaw chuck by screws. The activity rod extends out of the activity slot to the inside of the mounting bracket. The clamping block is arranged at the inside position of the mounting bracket. The guiding rod is arranged to extend out of the activity slot. The guiding rod is movably mounted at the inside position of the adjusting slot. The constraint block is fixedly connected to the side position of the adjusting plate. The support cylinder is movably sleeved on the side of the constraint block.

[0012] Further, the positioning mechanism includes a slotted opening formed on the side of the fixing plate. A positioning block is arranged on the side of the mounting bracket. A guiding block is fixedly mounted on the side of the positioning block. A connecting block is fixedly mounted on the side of the guiding block. A clamping block is threadedly sleeved on the side of the connecting block.

[0013] Further, the positioning block is arranged at the corresponding slotted opening position. The positioning block is a rectangular block with a convex cross-section. The guiding block is movably mounted at the inside position of the slotted opening. The clamping block is attached to the side position of the fixing plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By means of the provided clamping mechanism in the present utility model, the position of the clamping block can be adjusted first to constrain the tool bar, and the tool bar is constrained between the clamping blocks. The positioning mechanism is adjusted to insert the positioning block into the positioning slot to complete the positioning operation. Then, the clamping mechanism is adjusted to make the clamping block extrude to elastically clamp the tool bar. Finally, the three-jaw chuck is used for centering clamping and fixing operation to complete the threading operation of the tool bar. After the threading is completed, the three-jaw chuck is loosened and then the clamping block is slightly adjusted to loosen the tool bar to complete the disassembly. On the contrary, only need to continue to insert the tool bar between the clamping blocks to make the positioning slot insert on the side of the positioning block to complete the positioning elastic clamping, and the positioning and clamping of the tool bar can be quickly completed. In this way, different specifications of tool bars can be adapted for cooperative operation. And by machining the positioning slot first and then threading the tool bar, the threaded position of the tool bar corresponding to the positioning slot is fixed. And subsequent milling of the side slot through positioning and fixing by the positioning slot makes the operation faster, without the need to find the origin before processing, improving the threading and milling slot processing effects of the threading tool. Description of the Drawings

[0016] Figure 1 is a schematic three - dimensional structure diagram of the present utility model;

[0017] Figure 2 is a schematic structure diagram of the tool shank of the present utility model;

[0018] Figure 3 is a schematic partial structure diagram of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 an enlarged schematic structure diagram at position A;

[0020] Figure 5 is an exploded schematic structure diagram of the clamping mechanism of the present utility model;

[0021] Figure 6 is a partial schematic structure diagram of the positioning mechanism of the present utility model.

[0022] Reference numerals: 1, three - jaw chuck; 2, tool shank; 3, positioning groove; 4, clamping mechanism; 401, mounting bracket; 402, fixing plate; 403, movable groove; 404, movable rod; 405, clamping block; 406, support block; 407, guiding rod; 408, adjusting plate; 409, adjusting groove; 410, mounting groove; 411, restraint block; 412, support cylinder; 5, positioning mechanism; 501, slotted opening; 502, positioning block; 503, guiding block; 504, connecting block; 505, clamping block. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0027] As Figures 1 to 2 shown, an auxiliary positioning fixture for threading tool processing includes a three-jaw chuck 1. A tool shank 2 is arranged on the side of the three-jaw chuck 1. The tool shank 2 is a cylindrical rod with a convex cross-section. A positioning groove 3 is formed on the side of the tool shank 2. The positioning groove 3 is a rectangular groove. A clamping mechanism 4 for clamping the tool shank 2 is arranged on the side of the three-jaw chuck 1 corresponding to the position of the tool shank 2. A positioning mechanism 5 for positioning the tool shank 2 is arranged on the side of the clamping mechanism 4 corresponding to the position of the tool shank 2.

[0028] Specifically, the clamping mechanism 4 can be used to clamp tool shanks 2 with different diameters. The positioning mechanism 5 can be adjusted to cooperate with the positioning groove 3. After the positioning mechanism 5 positions the tool shank 2 when the clamping mechanism 4 clamps the tool shank 2, the clamping mechanism 4 further clamps and stabilizes the tool shank 2. Finally, the tool shank 2 is centered and clamped by the three-jaw chuck 1 to complete subsequent operations. In this way, the positioning groove 3 is processed first, and then the tool shank 2 is quickly positioned and clamped through the positioning groove 3 for threading operations, so that the threading processing positions of each group of tool shanks 2 are fixed, facilitating subsequent milling groove processing operations.

[0029] As Figures 3 to 5As shown, the clamping mechanism 4 includes a mounting bracket 401 provided on the side of the three-jaw chuck 1, and the tool bar 2 is provided at the central position of the mounting bracket 401. The mounting bracket 401 is composed of two groups of circular ring blocks and multiple groups of rectangular rods fixed therebetween. On the side of the mounting bracket 401 close to the three-jaw chuck 1, fixing plates 402 are fixedly installed at equal intervals, and the fixing plates 402 are attached to the side of the three-jaw chuck 1 and fixed to the side of the three-jaw chuck 1 by screws. The fixing plate 402 is a rectangular plate with one side being arc-shaped. On the side of the mounting bracket 401, moving grooves 403 penetrating through it are provided at equal intervals. The moving groove 403 is a rectangular groove with an "L"-shaped cross-section. Inside the moving groove 403, a moving rod 404 is movably installed, and the moving rod 404 extends out of the moving groove 403 to the inner side of the mounting bracket 401. The moving rod 404 is a rectangular rod. On the side of the moving rod 404, a clamping block 405 is fixedly installed, and the clamping block 405 is arranged at the inner side position of the mounting bracket 401. The clamping block 405 is an oval ring block made of elastic rubber. On the inner side of the clamping block 405, support blocks 406 are mirror-fixed. The support block 406 is an "S"-shaped block made of spring steel. On the side of the moving rod 404, a guiding rod 407 is fixedly installed, and the guiding rod 407 extends out of the moving groove 403. The guiding rod 407 is a cylindrical rod. On the side of the mounting bracket 401 corresponding to the position of the guiding rod 407, an adjusting plate 408 is provided. The adjusting plate 408 is a circular ring block. On the side of the adjusting plate 408 corresponding to the position of the guiding rod 407, adjusting grooves 409 are obliquely provided at equal intervals, and the guiding rod 407 is movably installed inside the adjusting grooves 409. The adjusting groove 409 is an arc-shaped groove. On the side of the mounting bracket 401 corresponding to the position of the adjusting plate 408, a mounting groove 410 is provided. The mounting groove 410 is a circular ring groove with an "L"-shaped cross-section, and the wall surface away from the adjusting plate 408 is serrated. Inside the mounting groove 410, a restraining block 411 is movably installed, and the restraining block 411 is fixedly connected to the side of the adjusting plate 408. The restraining block 411 is a circular ring block with an "L"-shaped cross-section, and the side away from the adjusting plate 408 is serrated. On the wall surface of the mounting groove 410, a support cylinder 412 is fixedly installed, and the support cylinder 412 is movably sleeved on the side of the restraining block 411. The support cylinder 412 is a cylindrical barrel made of spring steel with a continuously "W"-shaped cross-section;

[0030] Specifically, by pulling the restraint block 411 through the adjustment plate 408 to slide inside the installation groove 410, the restraint block 411 squeezes the support cylinder 412 to deform. The adjustment plate 408 rotates to make the guide rod 407 slide under restraint inside the adjustment groove 409. The guide rod 407 drives the movable rod 404 to push all the clamping blocks 405 to move synchronously to a suitable position. Release the adjustment plate 408, and under the elastic support of the support cylinder 412, the restraint block 411 fits against the wall surface of the installation groove 410 and is clamped and fixed. In this way, the clamping blocks 405 are positioned. Place the tool bar 2 between the clamping blocks 405 and rotate it to a suitable position. After positioning the positioning groove 3 through the subsequent positioning mechanism 5, perform the same operation to further make the clamping blocks 405 squeeze the tool bar 2 to clamp it. The support block 406 supports the clamping blocks 405 to further improve the elastic clamping force. In this way, the clamping mechanism 4 quickly clamps tool bars 2 of different specifications.

[0031] As Figure 3 and Figure 6 shown, the positioning mechanism 5 includes a slot 501 opened on the side surface of the fixing plate 402. The slot 501 is a rectangular slot. A positioning block 502 is provided on the side surface of the mounting bracket 401 away from the adjustment plate 408 and the positioning block 502 is arranged at the corresponding position of the slot 501. The positioning block 502 is a rectangular block with a convex cross-section. A guide block 503 is fixedly installed on the side surface of the positioning block 502 and the guide block 503 is movably installed inside the slot 501. The guide block 503 is a rectangular block. A connecting block 504 is fixedly installed on the side surface of the guide block 503 away from the positioning block 502. The connecting block 504 is a circular threaded block. A clamping block 505 is threadedly sleeved on the side surface of the connecting block 504 and the clamping block 505 fits against the side surface of the fixing plate 402. The clamping block 505 is a circular ring block with a circular threaded groove opened inside.

[0032] Specifically, after the clamping mechanism 4 completes the preliminary adjustment of the position of the clamping blocks 405, place the tool bar 2 between the clamping blocks 405. Loosen the thread of the clamping block 505 to push the guide block 503 to slide inside the slot 501, so that the positioning block 502 moves upward. At the same time, rotate the tool bar 2 so that the positioning groove 3 corresponds to the position of the positioning block 502. Push the positioning block 502 to insert it into the positioning groove 3 to complete the positioning. Thread the clamping block 505 to squeeze against the mounting bracket 401 to fix the positioning block 502. Continue the same operation above to complete the clamping operation of the clamping blocks 405 on the tool bar 2.

[0033] In summary: By means of the clamping mechanism 4 provided, the position of the clamping block 405 can be adjusted first to constrain the tool shank 2, and the tool shank 2 is constrained between the clamping blocks 405. Then, by means of the positioning mechanism 5 provided, the positioning block 502 is adjusted and inserted into the positioning groove 3 to complete the positioning operation. Next, the clamping block 405 is adjusted by the clamping mechanism 4 to squeeze and elastically clamp the tool shank 2. Finally, the three-jaw chuck 1 is used for centering clamping and fixing operation to complete the threading operation of the tool shank 2. After the threading is completed, the three-jaw chuck 1 is loosened, and then the clamping block 405 is slightly adjusted to loosen the tool shank 2 to complete the disassembly. On the contrary, only by continuing to insert the tool shank 2 between the clamping blocks 405 so that the positioning groove 3 is inserted on the side of the positioning block 502 to complete the positioning and elastic clamping, the positioning and clamping of the tool shank 2 can be quickly completed. In this way, different specifications of tool shanks 2 can be adapted for cooperative operation. Moreover, by machining the positioning groove 3 first and then threading the tool shank 2, the threaded position of the tool shank 2 corresponding to the positioning groove 3 is fixed. And subsequently, by positioning and fixing through the positioning groove 3 for milling the side groove, the operation is made more rapid, and there is no need to perform the origin finding operation before machining, which improves the threading and groove milling processing effects of the threading tool.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning fixture for thread cutter processing, comprising a three-jaw chuck (1), a tool bar (2) being arranged on the side of the three-jaw chuck (1), the tool bar (2) being a cylindrical bar with a convex cross section, a positioning groove (3) being provided on the side of the tool bar (2), the positioning groove (3) being a rectangular groove, a clamping mechanism (4) capable of clamping the tool bar (2) being arranged on the side of the three-jaw chuck (1) corresponding to the position of the tool bar (2), and a positioning mechanism (5) capable of positioning the tool bar (2) being arranged on the side of the clamping mechanism (4) corresponding to the position of the tool bar (2); It is characterized in that The clamping mechanism (4) comprises a mounting frame (401), a movable clamping block (405) and a supporting block (406) are arranged on the side of the mounting frame (401), a rotatable adjustment plate (408) is arranged on the side of the supporting block (406), a rotatable restraining block (411) is arranged on the side of the adjusting plate (408), and a supportable supporting cylinder (412) is arranged on the side of the restraining block (411); The positioning mechanism (5) comprises a slot (501), a movable positioning block (502) is arranged on the side of the slot (501), and a movable guiding block (503) is arranged on the side of the positioning block (502).

2. The auxiliary positioning fixture for thread cutter processing according to claim 1, characterized in that: The clamping mechanism (4) comprises a mounting frame (401) arranged on the side of the three-jaw chuck (1), a fixing plate (402) is fixedly mounted on the side of the mounting frame (401), a movable groove (403) is opened on the side of the mounting frame (401), a movable rod (404) is movably mounted inside the movable groove (403), a clamping block (405) is fixedly mounted on the side of the movable rod (404), a support block (406) is fixedly mounted on the inner side of the clamping block (405), and a guide rod (407) is fixedly mounted on the side of the movable rod (404).

3. The auxiliary positioning fixture for thread cutter processing according to claim 2, characterized in that: The clamping mechanism (4) further comprises an adjustment plate (408) arranged on the side of the mounting frame (401), an adjustment slot (409) being obliquely opened on the side of the adjustment plate (408), a mounting slot (410) being opened on the side of the mounting frame (401), a restraining block (411) being movably mounted inside the mounting slot (410), and a supporting tube (412) being fixedly mounted on the wall surface of the mounting slot (410).

4. The auxiliary positioning fixture for thread cutter processing according to claim 3 is characterized in that: The fixing plate (402) is fitted on the side of the three-jaw chuck (1) and fixed on the side of the three-jaw chuck (1) by screws, the movable rod (404) extends out of the movable groove (403) to the inner side of the mounting frame (401), the clamping block (405) is arranged at the inner side of the mounting frame (401), the guide rod (407) is arranged in the movable groove (403) and extends out, the guide rod (407) is movably installed in the inner position of the adjustment groove (409), the restraining block (411) is fixedly connected to the side position of the adjustment plate (408), and the supporting tube (412) is movably sleeved on the side of the restraining block (411).

5. The auxiliary positioning fixture for thread cutter processing according to claim 1, characterized in that: The positioning mechanism (5) comprises a slot (501) provided on the side of the fixing plate (402); the positioning block (502) is arranged on the side of the mounting frame (401); the guide block (503) is fixedly mounted on the side of the positioning block (502); a connecting block (504) is fixedly mounted on the side of the guide block (503); and a clamping block (505) is threadedly sleeved on the side of the connecting block (504).

6. The auxiliary positioning fixture for thread cutter processing according to claim 5, characterized in that: The positioning block (502) is arranged at a position corresponding to the slot (501), and the positioning block (502) is a rectangular block with a convex cross-section. The guide block (503) is movably installed at an inner position of the slot (501), and the clamping block (505) is attached to a side position of the fixing plate (402).

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