Positioning clamp with overturning structure

Abstract

The utility model belongs to the technical field of machining, and discloses a positioning fixture with an overturning structure, which comprises a frame mechanism for bearing and fixing, and an adjusting mechanism mounted at one end of the frame mechanism and used for clamping one end of a shaft lever to fix and adjust the angle, an auxiliary mechanism used for fixing one end of the sliding clamping shaft rod is arranged at the end, away from the adjusting mechanism, of the rack mechanism. The adjusting mechanism comprises an index plate, two first locking nails are symmetrically installed on the index plate, a first three-jaw chuck is arranged on one side of the index plate, and a supporting shaft is arranged between the index plate and the first three-jaw chuck. According to the positioning clamp with the turnover structure, the shaft rod can be conveniently turned over to any angle according to needs through the fixed arrangement of the indexing clamping shaft rod, and the applicability is improved; the two ends of the three-jaw chuck are clamped and fixed, so that the centering performance and the stability are improved; and through the arrangement of the central through hole, the shaft rods with any length can be conveniently machined.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to a positioning fixture with a flip structure. Background Art

[0002] Shafts are commonly used parts in machinery, and it is often necessary to process multiple holes, grooves or platforms on the circumference of the shaft, which requires precise positioning and flipping during processing.

[0003] In contrast, the Chinese patent with announcement number CN219946151U discloses a positioning fixture with a flip structure, including a device body, and also including: a base, a plurality of bases are provided and the upper ends are fixedly connected to the four sides of the lower surface of the device body; a mounting seat, one side of the mounting seat is fixedly connected to the middle of one side of the upper end of the device body; a hydraulic telescopic column, a plurality of hydraulic telescopic columns are provided and one end is fixedly connected to the front of the mounting seat, and the other side of the hydraulic telescopic column is fixedly connected to one side of the mounting plate; a clamping mechanism, two clamping mechanisms are provided and are respectively fixedly connected to the two ends of the other side of the mounting plate; an auxiliary mechanism, the auxiliary mechanism is provided in the middle of the upper surface of the device body; a controller, the controller is fixedly connected to one side of the upper surface of the device body.

[0004] However, the above patent can only flip up and down, and cannot flip to any specific angle, and has poor applicability, so a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning fixture with a flip structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A positioning fixture with a flip structure comprises a frame mechanism for bearing and fixing, and also comprises an adjusting mechanism installed at one end of the frame mechanism for clamping one end of a shaft rod and fixing and adjusting the angle, and an auxiliary mechanism for slidingly clamping one end of the shaft rod and fixing is arranged at one end of the frame mechanism away from the adjusting mechanism; the adjusting mechanism comprises a dividing plate, two first locking nails are symmetrically installed on the dividing plate, a first three-jaw chuck is arranged on one side of the dividing plate, a supporting shaft is arranged between the dividing plate and the first three-jaw chuck, and a first through hole is arranged in the middle of the supporting shaft; the auxiliary mechanism comprises a movable frame, a second locking nail is installed in front of the movable frame, a second three-jaw chuck is installed on the movable frame, and a second through hole is arranged in the middle of the movable frame.

[0008] Furthermore: the frame mechanism includes a fixed frame, two slide rails are symmetrically arranged in the fixed frame, a pointer is arranged on the top of one end of the fixed frame, a shaft hole is arranged on the fixed frame near the pointer, and four mounting holes are evenly distributed at the four corners of the fixed frame.

[0009] Furthermore: the slide rail and the fixing frame are connected by bolts, and the pointer and the fixing frame are riveted together.

[0010] Furthermore: the support shaft is respectively connected to the indexing plate and the first three-jaw chuck by bolts.

[0011] Furthermore: the movable frame is made of 45 steel material, and the second three-jaw chuck is connected to the movable frame bearing.

[0012] Furthermore: the first through hole and the second through hole have the same diameter.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. The setting of indexing clamping the shaft rod makes it easy to flip the shaft rod to any angle as needed, which increases the applicability;

[0015] 2. The three-jaw chuck is used to clamp and fix the two ends, which increases the centering and stability;

[0016] 3. The setting of the center through hole makes it easy to process shafts of any length. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a positioning fixture with a flip structure described in the utility model;

[0018] Figure 2 It is a schematic diagram of a frame mechanism of a positioning fixture with a flip structure described in the utility model;

[0019] Figure 3 It is a schematic diagram of an adjustment mechanism of a positioning fixture with a flip structure described in the utility model;

[0020] Figure 4 It is a schematic diagram of an auxiliary mechanism of a positioning fixture with a flip structure described in the utility model.

[0021] In the accompanying drawings: 101, fixed frame; 102, slide rail; 103, shaft hole; 104, pointer; 105, mounting hole; 201, dividing plate; 202, first locking pin; 203, first three-jaw chuck; 204, first through hole; 205, supporting shaft; 301, movable frame; 302, second locking pin; 303, second three-jaw chuck; 304, second through hole. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 A positioning fixture with a flip structure includes a frame mechanism for bearing and fixing, and an adjusting mechanism installed at one end of the frame mechanism for clamping one end of a shaft rod to fix and adjust the angle. An auxiliary mechanism for slidingly clamping one end of the shaft rod is arranged at one end of the frame mechanism away from the adjusting mechanism.

[0024] In this embodiment: the frame mechanism includes a fixed frame 101, two slide rails 102 are symmetrically arranged in the fixed frame 101, the slide rails 102 and the fixed frame 101 are bolted, a pointer 104 is arranged on the top of one end of the fixed frame 101, the pointer 104 and the fixed frame 101 are riveted together, a rotating shaft hole 103 is arranged near the pointer 104 of the fixed frame 101, and four mounting holes 105 are evenly distributed at the four corners of the fixed frame 101, the fixed frame 101 is fixed to the processing equipment through the mounting holes 105, the pointer 104 points to the indexing plate 201 for display, and the rotating shaft hole 103 is used to install the support shaft 205 for rotation;

[0025] In this embodiment: the adjustment mechanism includes a dividing plate 201, on which two first locking pins 202 are symmetrically mounted, a first three-jaw chuck 203 is arranged on one side of the dividing plate 201, a support shaft 205 is arranged between the dividing plate 201 and the first three-jaw chuck 203, the support shaft 205 is bolted to the dividing plate 201 and the first three-jaw chuck 203 respectively, a first through hole 204 is arranged in the middle of the support shaft 205, one end of the shaft rod is inserted into the first three-jaw chuck 203 for clamping and fixing, when one side of the shaft rod is processed, the first locking pin 202 is loosened, the dividing plate 201 is rotated, and the first three-jaw chuck 203 is driven to clamp the shaft rod through the support shaft 205 to flip until the pointer 104 points to the required position of the dividing plate 201, the first locking pin 202 is tightened to fix it, and the shaft rod can be processed again;

[0026] In this embodiment: the auxiliary mechanism includes a movable frame 301, the movable frame 301 is made of 45 steel, a second locking nail 302 is installed in front of the movable frame 301, a second three-jaw chuck 303 is installed on the movable frame 301, the second three-jaw chuck 303 and the movable frame 301 are bearing-connected, a second through hole 304 is arranged in the middle of the movable frame 301, the first through hole 204 and the second through hole 304 have the same diameter, the movable frame 301 is moved to an appropriate position along the slide rail 102, and the second locking nail 302 is tightened to fix it, so that the other end of the shaft rod is inserted into the second three-jaw chuck 303 and clamped and fixed, if the shaft rod is long, it can be adjusted by passing through the first through hole 204 and the second through hole 304 respectively to form supports at both ends to ensure that the processing position is exposed in the middle.

[0027] Working principle: first fix the fixed frame 101 on the processing equipment through the mounting hole 105, then insert one end of the shaft rod into the first three-jaw chuck 203 and clamp it, then move the movable frame 301 to the appropriate position along the slide rail 102, and tighten the second locking pin 302 to fix it, so that the other end of the shaft rod is inserted into the second three-jaw chuck 303 and clamp it. If the shaft rod is longer, it can be adjusted through the first through hole 204 and the second through hole 304 respectively to form supports at both ends to ensure that the processing position is exposed in the middle. Then, when one side of the shaft rod is processed, loosen the first locking pin 202, rotate the dividing plate 201, and drive the first three-jaw chuck 203 to clamp the shaft rod and flip it through the support shaft 205 until the pointer 104 points to the required position of the dividing plate 201, tighten the first locking pin 202 to fix it, and then process the shaft rod again.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture with a flip structure, comprising a frame mechanism for bearing and fixing, characterized in that: It also includes an adjustment mechanism installed at one end of the frame mechanism for clamping one end of the shaft rod to fix and adjust the angle, and an auxiliary mechanism for slidingly clamping one end of the shaft rod to fix is ​​provided at one end of the frame mechanism away from the adjustment mechanism; The adjustment mechanism comprises a dividing plate (201), two first locking pins (202) are symmetrically mounted on the dividing plate (201), a first three-jaw chuck (203) is arranged on one side of the dividing plate (201), a support shaft (205) is arranged between the dividing plate (201) and the first three-jaw chuck (203), and a first through hole (204) is arranged in the middle of the support shaft (205); The auxiliary mechanism comprises a movable frame (301), a second locking nail (302) is installed in front of the movable frame (301), a second three-jaw chuck (303) is installed on the movable frame (301), and a second through hole (304) is arranged in the middle of the movable frame (301).

2. A positioning fixture with a flip structure according to claim 1, characterized in that: The frame mechanism comprises a fixed frame (101), two slide rails (102) are symmetrically arranged inside the fixed frame (101), a pointer (104) is arranged at the top of one end of the fixed frame (101), a rotating shaft hole (103) is arranged near the pointer (104) on the fixed frame (101), and four mounting holes (105) are evenly distributed at four corners of the fixed frame (101).

3. The positioning fixture with a flip structure according to claim 2, characterized in that: The slide rail (102) and the fixing frame (101) are connected by bolts, and the pointer (104) and the fixing frame (101) are riveted together.

4. The positioning fixture with a flip structure according to claim 1, characterized in that: The support shaft (205) is bolted to the indexing plate (201) and the first three-jaw chuck (203) respectively.

5. The positioning fixture with a flip structure according to claim 1, characterized in that: The movable frame (301) is made of 45 steel material, and the second three-jaw chuck (303) is bearing-connected to the movable frame (301).

6. The positioning fixture with a flip structure according to claim 1, characterized in that: The first through hole (204) and the second through hole (304) have the same diameter.

Images