Circular workpiece machining clamp

Abstract

The utility model discloses a circular workpiece machining clamp. The circular workpiece machining clamp comprises a clamp fixed seat, a clamp movable seat, a fixed seat adjusting gear and a clamp clamping block. And the clamp fixing seat is provided with a fixing seat vertical part. And the fixed seat vertical part is provided with a fixed seat dovetail groove and a fixed seat adjusting gear. And the clamp movable seat is provided with a movable seat vertical part and a movable seat transverse part. The movable seat vertical part is provided with a movable seat dovetail sliding block located in the fixed seat dovetail groove. The movable seat dovetail sliding block is provided with a linear rack extending in the vertical direction. The utility model has the beneficial effects that the fixed seat adjusting gear is in gear-rack transmission with the linear rack, and the movable seat vertical part can slide up and down along the fixed seat dovetail groove through the movable seat dovetail slide block, so that the height of the movable seat vertical part is adjusted; and further, the clamping position of the circular workpiece is changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a machining clamp, especially a circular workpiece machining clamp. BACKGROUND

[0002] The technical scheme of Chinese utility model patent CN220516114U "a quick fixing jig for numerically controlled machining of a circular insert thimble" includes a jig clamp base, a jig combination base and a jig cushion block, the jig clamp base has a clamp base left side wall, a clamp base right side wall and a clamp base bottom wall, the jig combination base has a lower convex seat and an upper concave seat located above the lower convex seat, the right side surface of the upper concave seat is formed with a V-shaped groove opening to the right, and the left side surface of the jig cushion block is used together with the V-shaped groove to fix the circular insert thimble. The disadvantage is that the jig can only clamp the lower part of the circular insert thimble, and cannot clamp the upper part of the circular insert thimble, that is, the jig clamping position cannot be adjusted up and down. SUMMARY

[0003] The utility model solves the technical problem that the existing jig can only clamp the lower part of the circular insert thimble, and cannot clamp the upper part of the circular insert thimble, that is, the jig clamping position cannot be adjusted up and down, and provides a novel circular workpiece machining clamp.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a circular workpiece machining clamp, comprising: a jig fixed seat, a jig movable seat, a fixed seat adjusting gear and a jig clamping block. The jig fixed seat has a fixed seat vertical part. The front surface of the fixed seat vertical part has a fixed seat dovetail groove. The fixed seat vertical part is provided with a rotatable fixed seat adjusting gear. The jig movable seat is in front of the jig fixed seat. The jig movable seat has a movable seat vertical part and a movable seat horizontal part. The movable seat horizontal part is formed on the upper end of the movable seat vertical part and extends forward. The movable seat horizontal part and the jig clamping block jointly clamp the circular workpiece. The rear surface of the movable seat vertical part abuts against the front surface of the fixed seat vertical part. The rear surface of the movable seat vertical part has a movable seat dovetail sliding block located inside the fixed seat dovetail groove. The rear surface of the movable seat dovetail sliding block has a straight rack extending in the up-down direction. The straight rack is engaged with the fixed seat adjusting gear.

[0005] As a preferred scheme of the circular workpiece machining clamp, the jig fixed seat further has a fixed seat horizontal part, the fixed seat horizontal part is formed on the lower end of the fixed seat vertical part and extends backward. The fixed seat horizontal part is used to limit the backward tilting of the fixed seat vertical part.

[0006] As the preferred scheme of the circular workpiece machining clamp, the front face of the movable seat transverse part has a V-shaped groove which is open forward. The rear face of the clamp clamping block and the two faces of the V-shaped groove are in abutment with the circular workpiece, so as to clamp and fix the circular workpiece.

[0007] As the preferred scheme of the circular workpiece machining clamp, the number of the V-shaped grooves is not less than two. Each V-shaped groove has different groove depth, or each V-shaped groove has different opening angle, so as to clamp and fix the circular workpieces with different diameters.

[0008] As the preferred scheme of the circular workpiece machining clamp, the fixed seat vertical part is provided with a vertical scale for indicating the height of the movable seat vertical part.

[0009] Compared with the prior art, the beneficial effects of the utility model at least lie in that the gear and rack transmission of the fixed seat adjusting gear and the straight line rack is utilized, the movable seat vertical part can slide up and down along the fixed seat dovetail groove through the movable seat dovetail sliding block, so as to adjust the height of the movable seat vertical part, and then change the clamping position of the circular workpiece.

[0010] In addition to the technical problems solved by the utility model, the technical features of the technical scheme and the beneficial effects brought by the technical features, other technical problems solved by the utility model, other technical features contained in the technical scheme and the beneficial effects brought by the technical features will be further described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the structural schematic diagram of the circular workpiece machining clamp of the utility model embodiment.

[0012] Figure 2 is the exploded view of the main components of the circular workpiece machining clamp of the utility model embodiment.

[0013] Figure 3 is the use step schematic diagram of the circular workpiece machining clamp of the utility model embodiment Figure 1 .

[0014] Figure 4 is the use step schematic diagram of the circular workpiece machining clamp of the utility model embodiment Figure 2 .

[0015] Figure 5 is the use step schematic diagram of the circular workpiece machining clamp of the utility model embodiment Figure 3 . DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail below by specific implementation modes combined with the drawings. It needs to be explained here that the explanation of these implementation modes is used for helping understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each implementation mode of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Please see Figures 1 to 5 , which shows a circular workpiece machining clamp. The circular workpiece machining clamp is used for clamping and fixing a circular workpiece 100, and makes the circular workpiece 100 keep an upright state.

[0018] The circular workpiece machining clamp comprises a clamp fixed seat 1, a clamp movable seat 2, a fixed seat adjusting rod 3, a fixed seat adjusting gear 4 and a clamp clamping block 5 and the like.

[0019] The clamp fixed seat 1 is placed on a workbench surface. The clamp fixed seat 1 is in an L-shaped structure. The clamp fixed seat 1 has a fixed seat vertical part 11 and a fixed seat transverse part 12. The fixed seat transverse part 12 is formed at the lower end of the fixed seat vertical part 11 and extends backward. The fixed seat transverse part 12 is used for limiting the fixed seat vertical part 11 from tilting backward. The front face of the fixed seat vertical part 11 has a fixed seat dovetail groove 111. The groove length direction of the fixed seat dovetail groove 111 is the up-down direction. The groove depth direction of the fixed seat dovetail groove 111 is the front-back direction. The upper end of the fixed seat dovetail groove 111 is an open end. The lower end of the fixed seat dovetail groove 111 is an open end. In other embodiments, the lower end of the fixed seat dovetail groove can be a closed end.

[0020] The fixed seat vertical part 11 has a fixed seat first hole 112. The hole depth direction of the fixed seat first hole 112 is the left-right direction. The fixed seat first hole 112 is located at the upper end position of the fixed seat vertical part 11. The fixed seat first hole 112 has the rotatable fixed seat adjusting rod 3 inside. Preferably, a rolling bearing is arranged between the fixed seat first hole 112 and the fixed seat adjusting rod 3, which is used to ensure that the fixed seat adjusting rod 3 rotates smoothly. Both ends of the fixed seat adjusting rod 3 are located outside the fixed seat first hole 112. Both ends of the fixed seat adjusting rod 3 can be used as the action position of the rotating torque thereof. Preferably, both ends of the fixed seat adjusting rod 3 have friction lines 31, which are used to enhance the operation feeling. In other embodiments, only one end of the fixed seat adjusting rod 3 is located outside the fixed seat first hole 112, and the end is used as the action position of the rotating torque thereof.

[0021] The fixed seat vertical part 11 has a space to accommodate the fixed seat adjusting gear 4. The fixed seat adjusting gear 4 is fixed on the fixed seat adjusting rod 3. The fixed seat adjusting gear 4 rotates coaxially with the fixed seat adjusting rod 3.

[0022] The clamp movable seat 2 is in front of the clamp fixed seat 1. The clamp movable seat 2 has an inverted L-shaped structure. The clamp movable seat 2 has a movable seat vertical part 21 and a movable seat horizontal part 22. The movable seat horizontal part 22 is formed on the upper end of the movable seat vertical part 21 and extends forward. The rear of the movable seat vertical part 21 abuts against the front of the fixed seat vertical part 11. The rear of the movable seat vertical part 21 has a movable seat dovetail slider 211 inside the fixed seat dovetail groove 111. The fixed seat dovetail groove 111 and the movable seat dovetail slider 211 form a sliding pair. The rear of the movable seat dovetail slider 211 has a straight rack 2111. The length direction of the straight rack 2111 is the up-down direction. The straight rack 2111 engages with the fixed seat adjusting gear 4. The fixed seat adjusting gear 4 can drive the straight rack 2111 to move. By rotating the fixed seat adjusting rod 3, the movable seat dovetail slider 211 can slide up and down along the fixed seat dovetail groove 111 through the fixed seat adjusting gear 4 and the straight rack 2111, thereby driving the movable seat vertical part 21 to vertically displace, so as to adjust the height of the movable seat vertical part 21. Preferably, the fixed seat vertical part 11 has a vertical scale 113 for indicating the height of the movable seat vertical part 21.

[0023] The movable seat vertical part 21 has a movable seat guide groove 212. The groove length direction of the movable seat guide groove 212 is the up-down direction. The groove depth direction of the movable seat guide groove 212 is the front-rear direction. The fixed seat vertical part 11 has a fixed seat second hole 114. The hole depth direction of the fixed seat second hole 114 is the front-rear direction. The movable seat guide groove 212 and the fixed seat second hole 114 are opposite in the front-rear direction. The movable seat guide groove 212 has a first bolt 6 inside. The first bolt 6 can displace along the movable seat guide groove 212. The first bolt 6 sequentially passes through the fixed seat second hole 114 and a first nut 7. When the movable seat vertical part 21 reaches the specified height, the first nut 7 is used to lock the movable seat vertical part 21.

[0024] The clamp clamping block 5 has an elongated strip-shaped structure. The clamp clamping block 5 is in front of the movable seat horizontal part 22. The rear of the clamp clamping block 5 abuts against the front of the movable seat horizontal part 22. The front of the movable seat horizontal part 22 has a V-shaped groove 221 that opens forward. The rear of the clamp clamping block 5 and the two sides of the V-shaped groove 221 together abut against the circular workpiece 100, thereby jointly clamping and fixing the circular workpiece 100.

[0025] Preferably, the number of the V-shaped grooves 221 is not less than two, and each of the V-shaped grooves 221 has different groove depth and / or opening angle, so as to meet the clamping and fixing of the circular workpiece 100 with different diameters.

[0026] The movable seat transverse part 22 has a movable seat first hole 222. The hole depth direction of the movable seat first hole 222 is the front-rear direction. The clamp clamping block 5 has a clamping block first hole 51. The hole depth direction of the clamping block first hole 51 is the front-rear direction. The clamping block first hole 51 and the movable seat first hole 222 are opposite in the front-rear direction. A second bolt 8 and a second nut 9 are provided. The second bolt 8 sequentially passes through the second nut 9, the clamping block first hole 51 and the movable seat first hole 222. When the circular workpiece 100 is clamped and fixed, the clamp clamping block 5 is locked by the second nut 9.

[0027] The use steps of the circular workpiece machining clamp can be seen from Figures 3 to 5 .

[0028] Figure 3 Shown is the clamp movable seat 2 in the initial position.

[0029] Figure 4 Shown is the clamp movable seat 2 reaching the specified height.

[0030] Figure 5 Shown is the circular workpiece that has been clamped and fixed.

[0031] The above only expresses the embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A machining fixture for circular workpieces, characterized in that, include: Fixture fixed seat, fixture movable seat, fixed seat adjusting gear and fixture clamping block; The fixture fixing seat has a vertical fixing seat portion, and a fixing seat dovetail groove is provided on the front of the vertical fixing seat portion. A rotatable fixing seat adjusting gear is installed on the vertical fixing seat portion. The fixture movable seat is located in front of the fixture fixing seat. The fixture movable seat has a movable seat vertical portion and a movable seat horizontal portion. The movable seat horizontal portion is formed at the upper end of the movable seat vertical portion and extends forward. The movable seat horizontal portion and the fixture clamping block jointly clamp and fix a circular workpiece. The rear of the movable seat vertical portion abuts against the front of the fixed seat vertical portion. The rear of the movable seat vertical portion has a movable seat dovetail slider located inside the fixing seat dovetail groove. The rear of the movable seat dovetail slider has a straight rack extending in the vertical direction. The straight rack meshes with the fixing seat adjusting gear.

2. The circular workpiece machining fixture according to claim 1, characterized in that, The clamp fixing seat further has a fixing seat lateral portion, which is formed at the lower end of the fixing seat vertical portion and extends rearward.

3. The circular workpiece machining fixture according to claim 1, characterized in that, The front of the horizontal part of the movable seat has a forward-opening V-shaped groove. The rear of the clamping block and the two surfaces of the V-shaped groove abut against the circular workpiece to clamp and fix the circular workpiece.

4. The circular workpiece machining fixture according to claim 3, characterized in that, The number of V-grooves shall be no less than two.

5. The circular workpiece machining fixture according to claim 4, characterized in that, Each of the V-grooves has a different groove depth.

6. The circular workpiece machining fixture according to claim 4, characterized in that, Each of the V-grooves has a different opening angle.

7. The circular workpiece machining fixture according to claim 1, characterized in that, The vertical part of the fixed base is equipped with a vertical scale.

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