Bench vice for practical training

Abstract

The utility model relates to the technical field of machining, and discloses a bench vice for practical training, which comprises a fixed seat, a fixed vice body fixedly arranged at one end of the fixed seat, a movable vice body movably arranged on the fixed seat, and a screw rod for driving the movable vice body to be close to or far away from the fixed vice body, the clamp comprises a fixed clamp body and a movable clamp body, and further comprises clamping pieces arranged on the clamping face of the fixed clamp body and the clamping face of the movable clamp body, each clamping piece comprises a clamping block and a mounting shaft, a clamping groove is formed in the clamping face of each clamping block, and each clamping groove is in a circular arc shape or a V shape. A flexible sheet is attached to the interior of the clamping groove. According to the purpose, students can conveniently clamp bar workpieces, and the workpieces are prevented from loosening or sliding off in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a bench vice for practical training. BACKGROUND

[0002] In today's modern mechanical manufacturing technology is developing, although there are numerical control processing and various advanced processing methods, however, all the time, bench worker is indispensable in mechanical manufacturing one kind of work, bench worker skill is one of important work of cultivating mechanical, electrical student practical skill, and bench worker practical training has been retained in the mechanical, electrical student training.In the most frequent fixture used in bench work is bench vice.

[0003] For the students in the metalworking practical training, especially in the processing of bar material, due to lack of experience, and the bar surface is relatively smooth, if the clamping force is insufficient, it is easy to cause the bar to loosen or slip in the processing, finally affect the machining accuracy of workpiece.

[0004] In view of this, the present inventors have made in-depth research on the above-mentioned defects in the prior art, and thus the present case is produced. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a bench vice for practical training, which can clamp the bar workpiece for students and avoid loosening or slipping of the workpiece during processing.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] A bench vice for practical training, comprising a fixed seat, a fixed jaw body fixedly installed at one end of the fixed seat, a movable jaw body movably installed on the fixed seat, and a lead screw for driving the movable jaw body to approach or move away from the fixed jaw body, further comprising a clamping piece arranged on the clamping surface of the fixed jaw body and the clamping surface of the movable jaw body, the clamping piece comprising a clamping block and a mounting shaft, the clamping surface of the clamping block is formed with a clamping groove, the clamping groove is arc-shaped or "V"-shaped, and a flexible sheet is attached in the clamping groove.

[0008] Further, the clamping groove is "V"-shaped, the flexible sheet is a copper sheet or an aluminum sheet, a plurality of parallel clamping grooves are formed on the clamping block, and the depth and width of the plurality of clamping grooves increase successively. By arranging a plurality of clamping grooves of different specifications, different diameters of bar materials can be adapted, and the practicality is increased.

[0009] Further, the clamping surface of the clamping block further has a planar clamping portion, and the planar clamping portion is located on both sides of the clamping groove. The planar clamping portion can clamp other blocky materials.

[0010] Further, the clamping pieces are respectively rotationally arranged on the fixed jaw body and the movable jaw body, and the fixed jaw body and the movable jaw body are further provided with adjusting assemblies for driving the clamping pieces to rotate. The angle of the clamping pieces can be adjusted through the adjusting assemblies, and the workpiece can be more conveniently machined.

[0011] Further, the adjusting assembly comprises a worm wheel arranged on the mounting shaft and a worm gear engaged with the worm wheel; the mounting shaft is formed with a key strip matched with the worm wheel, and the worm wheel is formed with a key groove matched with the key strip; and the end of the worm gear is further provided with a knob. The worm wheel and the worm gear can more efficiently adjust the clamping pieces.

[0012] Further, the clamping block is in a cylindrical shape, and the circumferential surface of the clamping block is formed with a scale; and the fixed jaw body and the movable jaw body are formed with an indicating mark. The scale and the indicating mark can more accurately indicate the angle of clamping the workpiece.

[0013] Compared with the prior art, the clamping pieces are arranged on the clamping surfaces of the movable jaw body and the fixed jaw body, the clamping grooves of the clamping pieces can increase the clamping area of the bar material, and the clamping pieces can increase the wrapping property of the bar material, so that the bar material can be clamped without a large clamping force, and the workpiece can be prevented from loosening or falling off during the machining process. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is a structural schematic view of the movable jaw body in the utility model;

[0017] Fig. 3 It is a structural schematic view of the clamping piece in the utility model;

[0018] Fig. 4 It is a structural schematic view of the adjusting assembly in the utility model.

[0019] The main element symbol is explained as follows: fixed seat 1, fixed jaw body 2, movable jaw body 3, screw rod 4, clamping piece 5, clamping block 51, clamping groove 511, flexible sheet 512, planar clamping part 513, scale 514, mounting shaft 52, key strip 521, adjusting assembly 6, worm wheel 61, key groove 611, worm gear 62, knob 621, indicating mark 7. DETAILED DESCRIPTION

[0020] The utility model will be combined with the drawings and specific embodiments in detail, it is to explain that, in the drawing or the description, similar or same part all uses same figure number, the implementation mode that is not drawn or described in the drawing, the form that is known to ordinary skilled in the art. In addition, the direction language mentioned in the embodiment, for example, "up", "down", "top", "bottom", "left", "right", "front", "back" and so on, only refer to the direction of the drawing, and not be used to limit the protection scope of the utility model.

[0021] As Figs. 1-4 The utility model relates to a kind of bench vices for practical training, including fixed seat 1, fixed installation in the fixed seat 1 one end fixed jaw 2, active installation on fixed seat 1 active jaw 3 and drive active jaw 3 near or far from fixed jaw 2 screw rod 4, specifically, fixed seat 1 can adopt bolt fixed connection on practical training table, sliding slot for the sliding of active jaw 3 is formed on fixed seat 1, one end of screw rod 4 is rotatably connected with active jaw 3, and handle is equipped at the other end, screw hole is equipped on fixed seat 1 with screw rod 4 thread cooperation, in the embodiment, it further includes setting on the clamping surface of fixed jaw 2 and the clamping surface of active jaw 3 clamping piece 5, clamping piece 5 includes clamping block 51 and mounting shaft 52, the clamping surface of clamping block 51 is formed with clamping groove 511, clamping groove 511 is circular arc or "V" shape;Flexible sheet 512, such as copper sheet or aluminum, is attached in clamping groove 511.Through mounting shaft 52, clamping piece 5 is connected on fixed jaw 2 and active jaw 3, two clamping pieces 5 are symmetrically arranged, clamping groove 511 is correspondingly matched, through flexible sheet 512, not only can protect bar material, avoid bar material to be damaged, can also increase friction, avoid bar material to slip.

[0022] In the embodiment, in order to increase the clamping range of clamping groove 511, clamping groove 511 adopts "V" shape, and each clamping groove 511 can adapt to a plurality of specifications of bar material, in addition, a plurality of parallel clamping grooves 511 are formed on clamping block 51, and the depth and width of the plurality of clamping grooves 511 increase gradually. By setting a plurality of clamping grooves 511 of different specifications, the clamping range can be further increased.

[0023] In the embodiment, the clamping surface of clamping block 51 also has plane clamping portion 513, and the plane clamping portion 513 is located on the two sides of clamping groove 511. Anti-skid stripes are formed on the plane clamping portion 513, and other block materials can be clamped by the plane clamping portion 513.

[0024] In the embodiment, the clamping pieces 5 are rotatably arranged on the fixed jaw body 2 and the movable jaw body 3 respectively, and the fixed jaw body 2 and the movable jaw body 3 are further provided with adjusting assemblies 6 for driving the clamping pieces 5 to rotate. The adjusting assembly 6 comprises a worm wheel 61 sleeved on a mounting shaft 52 and a worm 62 engaged with the worm wheel 61; the mounting shaft 52 is formed with a key strip 521 matched with the worm wheel 61, and the worm wheel 61 is formed with a key groove 611 matched with the key strip 521; and the end of the worm 62 is further provided with a knob 621. Specifically, the end of the clamping block 51 is formed with a rotating block, the fixed jaw body 2 and the movable jaw body 3 are both formed with a rotating cavity matched with the rotating block and a mounting cavity mounting the worm wheel 61 and the worm 62, and the worm 62 is vertically arranged. The worm wheel 61 and the worm 62 have the characteristics of reverse self-locking, i.e. only the worm 62 can drive the worm wheel 61 to rotate, so that the clamping pieces 5 will not rotate during the machining process.

[0025] In the embodiment, the clamping block 51 is cylindrical, and the circumferential surface of the clamping block 51 is formed with a scale 514; and the fixed jaw body 2 and the movable jaw body 3 are formed with an indicating mark 7. The scale 514 and the indicating mark 7 can be used to more accurately adjust the angle of clamping the workpiece.

[0026] The use method of the utility model is as follows: firstly, selecting appropriate clamping grooves 511 according to the diameter of the bar material, then adjusting the movable jaw body 3 to approach the fixed jaw body 2 through rotating the lead screw 4, pre-clamping the bar material, then rotating the two worms 62 with both hands, rotating the bar material to the required machining angle, and finally rotating the lead screw 4 again to clamp the bar material.

[0027] The utility model provides a kind of bench vice for practical training, which is described in detail above. The description of specific embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, some improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A training bench vise, comprising a fixed base (1), a fixed vise body (2) fixedly mounted on one end of the fixed base (1), a movable vise body (3) movably mounted on the fixed base (1), and a lead screw (4) for driving the movable vise body (3) to move closer to or away from the fixed vise body (2), characterized in that: Also include the clamping piece (5) arranged on the clamping surface of the fixed jaw (2) and the clamping surface of the movable jaw (3), the clamping piece (5) includes clamping block (51) and mounting shaft (52), the clamping surface of the clamping block (51) is formed with clamping groove (511), the clamping groove (511) is circular arc or "V” shape;The clamping groove (511) is pasted with flexible sheet (512);The clamping piece (5) is rotatably arranged on the fixed jaw (2) and the movable jaw (3), the fixed jaw (2) and the movable jaw (3) are also provided with adjusting assembly (6) for driving the clamping piece (5) to rotate;The adjusting assembly (6) includes worm gear (61) sleeved on the mounting shaft (52) and worm (62) engaged with worm gear (61);The mounting shaft (52) is formed with key bar (521) matched with the worm gear (61), and the worm gear (61) is formed with key groove (611) matched with the key bar (521);The end of the worm (62) is also provided with knob (621).

2. The bench vice according to claim 1, wherein: The clamping groove (511) is "V” shape, the flexible sheet (512) is copper sheet or aluminum sheet;The clamping block (51) is formed with a plurality of parallel clamping grooves (511), and the depth and width of the plurality of clamping grooves (511) increase gradually.

3. The bench vice according to claim 2, wherein: The clamping surface of the clamping block (51) also has a flat clamping part (513), and the flat clamping part (513) is located on both sides of the clamping groove (511).

4. The bench vice according to claim 3, wherein: The clamping block (51) is cylindrical, and the circumference of the clamping block (51) is formed with a scale (514);The fixed jaw (2) and the movable jaw (3) are formed with indication mark (7).

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