Torque plate lathe positioning clamp

Abstract

The utility model discloses a torque plate lathe positioning fixture, which belongs to the technical field of positioning fixtures, and is characterized in that two symmetrically distributed positioning seats are mounted on a chuck body of a three-jaw chuck, upper positioning pins are respectively mounted on the two positioning seats, and the two upper positioning pins correspond to two through holes in the upper end of a torque plate; the two upper positioning pins are inserted into through holes in the upper end of the torque plate for positioning; the inner ends of three clamping jaws of the three-jaw chuck are respectively provided with a positioning block, and the three positioning blocks abut against the inner wall of a through hole in the middle of the torque plate. The chuck body is provided with two symmetrically distributed lower positioning pins, the lower positioning pins are located below the upper positioning pins, the two lower positioning pins correspond to the two through holes in the lower end of the torque plate, and the two lower positioning pins are inserted into the through holes in the upper end of the torque plate for positioning. Compared with the prior art, the device has the characteristic of clamping and positioning the torque plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning fixture technical field, especially a torque plate lathe positioning fixture. BACKGROUND

[0002] At present, when the lathe is machining the end face of the torque plate, it faces a problem: because the torque plate itself has an irregular shape, the traditional three-jaw chuck cannot directly and stably clamp it. The design of the three-jaw chuck is mainly to adapt to circular or approximately circular workpieces, and they clamp the workpieces through three evenly distributed clamping jaws to ensure that the workpieces can remain stable during the machining process. However, the irregular shape of the torque plate makes this direct clamping method impractical, because the clamping jaws cannot find a suitable point of application to evenly clamp the entire workpiece, which not only may cause the machining precision to decrease, but also may cause safety hazards. SUMMARY

[0003] The utility model aims at the deficiency of prior art, provides a torque plate lathe positioning fixture, reaches the purpose of clamping and positioning torque plate.

[0004] The utility model provides a torque plate lathe positioning fixture, including three jaw chucks, characterized by: two symmetrical distribution's positioning seat of chuck body of three jaw chucks, two positioning seat are installed with upper positioning pin respectively, two upper positioning pin with the two through -hole of torque wrench upper end correspond, two upper positioning pin are inserted in the through -hole of torque wrench upper end and position, three clamping jaws of three jaw chucks's inner end are installed with positioning block respectively, three positioning blocks are on the inner wall of torque plate middle through -hole and top, chuck body is installed with two symmetrical distribution's lower positioning pin, and the lower positioning pin is located below the upper positioning pin, two lower positioning pins correspond with the two through -holes of torque wrench lower end, and two lower positioning pins are inserted into the through -hole of torque wrench upper end and positioned.

[0005] Further, one end of the upper positioning pin is provided with external threads, and the positioning seat is provided with a threaded hole. The upper positioning pin is screwed into the threaded hole of the positioning seat.

[0006] Further, the positioning seat is provided with a plurality of through holes, and the chuck body is provided with corresponding threaded blind holes. The fixing bolts pass through the through holes of the positioning seat and are screwed into the threaded blind holes of the chuck body.

[0007] Further, the positioning seat has a V-shaped structure. The inner end of the positioning seat is fixedly installed on the chuck body, and the outer end is installed with an upper positioning pin shaft.

[0008] Further, the part of the positioning block in contact with the middle through hole of the torque wrench is in the shape of a circular arc, which corresponds and matches with the inner wall of the middle through hole.

[0009] Further, the chuck body is provided with a threaded hole, and one end of the lower positioning pin is provided with an external thread, and the lower positioning pin is threadedly connected with the threaded hole of the chuck body.

[0010] Further, the chuck body is provided with a threaded hole, and one end of the lower positioning pin is provided with an external thread, and the lower positioning pin is threadedly connected with the threaded hole of the chuck body.

[0011] Compared with the prior art, the utility model has the following outstanding beneficial effects:

[0012] The utility model discloses can position torque board through two upper positioning pins and lower positioning pin, and the three-jaw chuck drives the positioning block to clamp the torque board, thereby can clamp and position the torque board quickly, and improve work efficiency. ACCURATE DRAWING

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the structural schematic diagram of the utility model installation torque wrench;

[0015] Among them, 1, three-jaw chuck;101, chuck body;102, chuck jaw;2, upper positioning pin;3, positioning seat;4, positioning block;5, lower positioning pin;6, mistake-proof pin shaft. CONCRETE IMPLEMENTING METHOD

[0016] The utility model is further explained below in combination with the drawings and concrete implementing method.

[0017] As Figure 1 And 2 The utility model discloses three-jaw chuck 1, positioning seat 3, upper positioning pin 2, lower positioning pin 5 and mistake-proof mechanism.

[0018] The three-jaw chuck 1 is prior device, and its specific structure will not be repeated, and the chuck body 101 of three-jaw chuck 1 is provided with two symmetrical positioning seats 3, and two positioning seats 3 are provided with upper positioning pin 2 respectively, and two upper positioning pins 2 correspond with the two through holes of torque wrench upper end, and two upper positioning pins 2 can be inserted in the through hole of torque wrench upper end and positioned.

[0019] In the optimization scheme, one end of the upper positioning pin 2 is provided with an external thread, and the positioning seat 3 is provided with a threaded hole, and the upper positioning pin 2 is threadedly connected with the threaded hole of the positioning seat 3.

[0020] The positioning seat 3 is provided with a plurality of through holes, and the chuck body 101 is provided with corresponding threaded blind holes, and the fixed bolt passes through the through hole on the positioning seat 3 and is threadedly connected with the threaded blind hole on the chuck body 101.

[0021] In the optimization scheme, the positioning seat 3 is in V-shaped structure, the inner end of the positioning seat 3 is fixedly installed on the chuck body 101, and the outer end is installed with the upper positioning pin 2 shaft.

[0022] The inner end of the three clamping jaws 102 of the three-jaw chuck 1 is respectively installed with a positioning block 4, and the three positioning blocks 4 can be abutted on the inner wall of the middle through hole of the torque plate.

[0023] In the optimization scheme, the part of the positioning block 4 in contact with the middle through hole of the torque plate is in arc shape, which is correspondingly matched with the inner wall of the middle through hole.

[0024] The chuck body 101 is installed with two symmetrically distributed lower positioning pins 5, the lower positioning pins 5 are located below the upper positioning pins 2, the two lower positioning pins 5 correspond to the two through holes at the lower end of the torque plate, and the two lower positioning pins 5 can be inserted into the through hole at the upper end of the torque plate for positioning.

[0025] In the optimization scheme, the chuck body 101 is provided with a threaded hole, one end of the lower positioning pin 5 is provided with an external thread, and the lower positioning pin 5 is screwed with the threaded hole of the chuck body 101.

[0026] The chuck body 101 is installed with an error-proof mechanism, the error-proof mechanism comprises two error-proof pin shafts 6, the two error-proof pin shafts 6 are placed at the lower end of the lower positioning pin 5, the error-proof pin shaft 6 can be blocked below the torque plate, and the installation direction of the torque plate is prevented from being wrong.

[0027] The operation process is as follows: when the utility model is used, the two upper positioning pins 2 shafts and the two lower positioning pins 5 shafts are inserted into the through holes of the torque plate, the three clamping jaws 102 of the three-jaw chuck 1 drive the positioning blocks 4 to be abutted on the inner wall of the middle through hole of the torque plate, and the torque plate is fixed.

[0028] It should be noted that the specific embodiments of the utility model have been described in detail, and various obvious changes made by those skilled in the art without departing from the spirit and scope of the utility model are within the protection scope of the utility model.

Claims

1. A torque plate lathe positioning fixture, comprising a three-jaw chuck (1); characterized in that: The chuck body (101) of the three-jaw chuck (1) is equipped with two symmetrically distributed positioning seats (3), and upper positioning pins (2) are respectively installed on the two positioning seats (3). The two upper positioning pins (2) correspond to the two through holes at the upper end of the torque plate. The two upper positioning pins (2) are inserted into the through holes at the upper end of the torque plate for positioning. The inner ends of the three jaws (102) of the three-jaw chuck (1) are respectively equipped with positioning blocks (4). The three positioning blocks (4) are pressed against the inner wall of the through hole in the middle of the torque plate. The chuck body (101) is equipped with two symmetrically distributed lower positioning pins (5). The lower positioning pins (5) are located below the upper positioning pins (2). The two lower positioning pins (5) correspond to the two through holes at the lower end of the torque plate. The two lower positioning pins (5) are inserted into the through holes at the upper end of the torque plate for positioning.

2. The torque plate lathe positioning fixture according to claim 1, characterized in that: The upper positioning pin (2) has an external thread at one end, and the positioning seat (3) has a threaded hole. The upper positioning pin (2) and the threaded hole of the positioning seat (3) are threadedly engaged.

3. The torque plate lathe positioning fixture according to claim 1, characterized in that: The positioning seat (3) is provided with multiple through holes, and the chuck body (101) is provided with corresponding threaded blind holes. The fixing bolt passes through the through holes on the positioning seat (3) and engages with the threaded blind holes on the chuck body (101).

4. A torque plate lathe positioning fixture according to claim 1, characterized in that: The positioning seat (3) has a V-shaped structure. The inner end of the positioning seat (3) is fixedly installed on the chuck body (101), and the outer end is equipped with an upper positioning pin (2) shaft.

5. A torque plate lathe positioning fixture according to claim 1, characterized in that: The part of the positioning block (4) that contacts the middle through hole of the torque plate is arc-shaped and corresponds to the inner wall of the middle through hole.

6. A torque plate lathe positioning fixture according to claim 1, characterized in that: The chuck body (101) is provided with a threaded hole, and one end of the lower positioning pin (5) is provided with an external thread, and the lower positioning pin (5) is threadedly engaged with the threaded hole of the chuck body (101).

7. A torque plate lathe positioning fixture according to claim 1, characterized in that: The chuck body (101) is equipped with an error prevention mechanism, which includes two error prevention pins (6) placed at the lower end of the lower positioning pin (5).

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