Machine tool clamp

Abstract

The utility model relates to the technical field of machine tool fixtures, and particularly discloses a machine tool fixture which comprises a chuck and a base connected with a machine tool, a rotating seat is arranged at the upper end of the base, a first clamping seat is arranged at the upper end of the rotating seat, a first supporting seat is arranged at the upper end of the first clamping seat, and a guide rail and a lead screw are connected to one side of the first clamping seat. A hand wheel is arranged at one end of the lead screw, a second clamping seat is arranged on one side of the first clamping seat, a sliding block matched with the guide rail is arranged at the lower end of the second clamping seat, the second clamping seat is matched with the lead screw in a threaded mode, and a second supporting seat is arranged at the upper end of the second clamping seat; the first clamping head and the second clamping head are detachably installed on the first clamping base and the second clamping base respectively, and clamping grooves are formed in the ends of the first clamping head and the second clamping head. The clamping grooves are formed in the ends of the chucks, rectangular workpieces can be clamped more flexibly and reliably, the chucks can be detached and replaced according to the shapes of the workpieces, and clamping is more stable and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool clamps, in particular to a machine tool clamp. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to turn a rotating workpiece. Drills, reamer drills, reamers, taps, dies and knurling tools can also be used on the lathe for corresponding processing.

[0003] Existing machine tool clamps mostly use flat-nose pliers, such as the CNC machine tool clamp disclosed in patent CN111890075A. Both chucks are flat structures. When clamping a rectangular workpiece, only the two sides of the workpiece can be clamped and fixed. It is not stable enough when clamping the corners of the workpiece. The workpiece is prone to sliding or rotating, and the clamping of the workpiece is not flexible enough. Utility Model Content

[0004] The utility model aims at the above-mentioned deficiencies in the prior art and provides a machine tool clamp, in which a clamping groove is arranged at the end of a chuck, which can clamp and fix the side ribs of a rectangular workpiece, thereby improving the firmness and stability of the clamping, making the clamping of the rectangular workpiece more flexible and reliable, and the chuck can be disassembled and replaced according to the shape of the workpiece, making the clamping more stable and safe.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A machine tool fixture comprises a chuck and a base connected to the machine tool, a rotating seat is provided at the upper end of the base, a first chuck is provided at the upper end of the rotating seat, a first support seat is provided at the upper end of the first chuck, a guide rail and a lead screw are connected to one side of the first chuck, a hand wheel is provided at one end of the lead screw, a second chuck is provided at one side of the first chuck, a slider matching the guide rail is provided at the lower end of the second chuck, the second chuck matches the lead screw thread, a second support seat is provided at the upper end of the second chuck, the chuck comprises a first chuck and a second chuck, the first chuck and the second chuck are detachably mounted on the first chuck and the second chuck respectively, and a chuck groove is provided at the ends of the first chuck and the second chuck.

[0007] Preferably, the rotating seat is connected to the base via a rotating shaft, a positioning hole is provided on the base, and a positioning bolt matching the positioning hole is provided on the rotating seat.

[0008] Preferably, a positioning block cooperating with a groove of a machine tool worktable is provided at the lower end of the base, and fixing grooves are provided at both ends of the base.

[0009] Preferably, a first support groove with an upper opening is provided on one side of the first support seat, and one end of the first chuck is plugged into the first support groove; a second support groove with an upper opening is provided on one side of the second support seat, and one end of the second chuck is plugged into the second support groove.

[0010] Preferably, locking bolts for fixing the clamps are provided on the side walls of the first support seat and the second support seat.

[0011] Preferably, the end of the first clamp is provided with a clearance groove matched with the second clamp.

[0012] Preferably, support blocks are provided at the lower ends of the first chuck and the second chuck.

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

[0014] 1. The utility model provides a clamping groove at the end of the chuck, which can clamp and fix the side edges of the rectangular workpiece, improve the firmness and stability of the clamping, and make the clamping of the rectangular workpiece more flexible and reliable. The chuck can be disassembled and replaced according to the shape of the workpiece, and the clamping is more stable and safe.

[0015] 2. The utility model can rotate the direction of the workpiece through the rotating seat, adjust the angle of the workpiece during processing, and is more convenient to use.

[0016] 3. The utility model provides a clearance groove matched with the second clamp at the end of the first clamp, which can reduce the distance between the two clamp grooves, thereby increasing the clamping range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model installed on a machine tool;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model;

[0019] Figure 3 is a schematic diagram of the structure of the base;

[0020] Figure 4 It is a structural schematic diagram of a rotating seat;

[0021] Figure 5 is a structural schematic diagram of the second clamping seat;

[0022] Figure 6 is a schematic diagram of the structure of the chuck;

[0023] Figure 7 The structure diagram of the utility model when clamping a workpiece Figure 1 ;

[0024] Figure 8 The structure diagram of the utility model when clamping a workpiece Figure 2 ;

[0025] In the figure: 1-base; 101-positioning block; 102-fixing groove; 103-positioning hole; 2-rotating seat; 201-positioning bolt; 202-guide rail; 203-first clamping seat; 204-first supporting seat; 205-first supporting groove; 206-screw; 207-handwheel; 3-second clamping seat; 301-slider; 302-second supporting seat; 303-second supporting groove; 4-chuck; 401-first clamp; 402-giving groove; 403-second clamp; 404-clamping groove; 405-support block; 5-locking bolt. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-2 As shown, a machine tool fixture includes a chuck 4 and a base 1 connected to the machine tool. The upper end of the base 1 is provided with a rotating seat 2, and the rotating seat 2 can realize 360° rotation. Figure 4 As shown, the upper end of the rotating seat 2 is provided with a first clamping seat 203, the upper end of the first clamping seat 203 is provided with a first supporting seat 204, one side of the first clamping seat 203 is connected with a guide rail 202 and a lead screw 206, one end of the lead screw 206 is provided with a hand wheel 207, one side of the first clamping seat 203 is provided with a second clamping seat 3, the lower end of the second clamping seat 3 is provided with a slider 301 that matches the guide rail 202, the second clamping seat 3 is threadedly matched with the lead screw 206, the hand wheel 207 is turned, the lead screw 206 rotates, and the slider 301 can slide along the guide rail 202. Figure 5 As shown, the upper end of the second clamping seat 3 is provided with a second supporting seat 302, as shown in FIG. Figure 6 As shown, the chuck 4 includes a first chuck 401 and a second chuck 403. The first chuck 401 and the second chuck 403 can both cooperate with the first clamp seat 203 or the second clamp seat 3. The left and right installation positions of the first chuck 401 and the second chuck 403 are not limited. The ends of the first chuck 401 and the second chuck 403 are both provided with a clamping groove 404.

[0028] The shape of the chuck 4 can also be manufactured and replaced according to needs. For example, the end of the joint can be set as an inclined surface, a stepped surface, etc.

[0029] The clamping groove 404 is a 90° V-shaped groove, which can clamp and fix the side ribs of square steel or rectangular blocks.

[0030] The rotating seat 2 is connected to the base 1 through a rotating shaft. Figure 3As shown, the base 1 is provided with a positioning hole 103 , and the rotating base 2 is provided with a positioning bolt 201 matched with the positioning hole 103 , which is mainly used to fix the horizontal and vertical positions of the rotating base 2 .

[0031] A strip-shaped groove is generally provided at the upper end of the machine tool worktable for fixing the fixture. A positioning block 101 is provided at the lower end of the base 1 to cooperate with the groove of the machine tool worktable. Fixed grooves 102 are provided at both ends of the base 1. Bolts cooperate with the fixed grooves 102 to tighten and fix the base 1 to the machine tool worktable.

[0032] A first supporting groove 205 with an opening at the upper end is provided on one side of the first supporting seat 204, and one end of the first clamp 401 is plugged into the first supporting groove 205. A second supporting groove 303 with an opening at the upper end is provided on one side of the second supporting seat 302, and one end of the second clamp 403 is plugged into the second supporting groove 303. Locking bolts 5 for fixing the clamp 4 are provided on the side walls of the first supporting seat 204 and the second supporting seat 302.

[0033] In order to increase the clamping range of the clamping groove 404, a clearance groove 402 cooperating with the second clamping head 403 is provided at the end of the first clamping head 401, so that square steels or rectangular blocks of different sizes can be clamped.

[0034] The lower ends of the first chuck 401 and the second chuck 403 are both provided with a support block 405 . When clamping a workpiece, the support block 405 can be used for support, thereby improving the stability of clamping.

[0035] like Figure 7 As shown, when clamping normally, the chuck 4 clamps the two side walls of the workpiece, and the workpiece is located at the upper end of the support block 405; Figure 8 As shown, when the side ridges of the workpiece are clamped, the side ridges of the workpiece are clamped by the clamping grooves 404, thereby fixing the workpiece.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A machine tool fixture, comprising a chuck and a base connected to a machine tool, characterized in that: The upper end of the base is provided with a rotating seat, the upper end of the rotating seat is provided with a first clamping seat, the upper end of the first clamping seat is provided with a first supporting seat, one side of the first clamping seat is connected to a guide rail and a screw, one end of the screw is provided with a hand wheel, one side of the first clamping seat is provided with a second clamping seat, the lower end of the second clamping seat is provided with a sliding block matching the guide rail, the second clamping seat matches the screw thread, the upper end of the second clamping seat is provided with a second supporting seat, the chuck includes a first chuck and a second chuck, the first chuck and the second chuck are respectively detachable and installed with the first chuck and the second chuck, and the ends of the first chuck and the second chuck are both provided with clamping grooves.

2. A machine tool fixture as claimed in claim 1, characterized in that: The rotating seat is connected to the base through a rotating shaft. A positioning hole is provided on the base, and a positioning bolt matched with the positioning hole is provided on the rotating seat.

3. A machine tool fixture as claimed in claim 1, characterized in that: The lower end of the base is provided with a positioning block matched with the groove of the machine tool worktable, and both ends of the base are provided with fixing grooves.

4. A machine tool fixture as claimed in claim 1, characterized in that: A first support groove with an upper opening is provided on one side of the first support seat, and one end of the first chuck is plugged into the first support groove. A second support groove with an upper opening is provided on one side of the second support seat, and one end of the second chuck is plugged into the second support groove.

5. A machine tool fixture as claimed in claim 4, characterized in that: The side walls of the first support seat and the second support seat are both provided with locking bolts for fixing the clamps.

6. A machine tool fixture as claimed in claim 1, characterized in that: The end of the first clamp is provided with a clearance groove matched with the second clamp.

7. A machine tool fixture as claimed in claim 1, characterized in that: The lower ends of the first clamp and the second clamp are both provided with supporting blocks.

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