Variable clamp tool for machining

Abstract

The utility model discloses a variable clamp tool for machining, which relates to the field of machining, and comprises a support plate, two grooves are arranged on the top surface of the support plate, the two grooves are symmetrical about the diagonal line of the support plate, a clamp A and a clamp B are respectively arranged on the top surfaces of the two grooves in a sliding manner, and the clamp A and the clamp B are arranged on the top surface of the support plate in a sliding manner. The clamp A and the clamp B are each of an L-shaped structure and are each provided with an upper notch and a lower notch, the upper notches and the lower notches are in a complementary state, and a driving mechanism is arranged at the position, below the two grooves, of the bottom face of the bottom plate. According to the clamping device, the arranged driving mechanism is used for driving the arranged clamp A and the arranged clamp B to relatively and synchronously move to clamp and fix a product on the top face of the supporting plate, a rectangular structure is formed when the clamp A and the clamp B meet and complement each other, the product can be synchronously clamped and fixed in four directions, and compared with two-face clamping in the prior art, the clamping efficiency is greatly improved. And the fixing effect on the product is greatly improved, and the displacement condition of the product during machining is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing field especially a variable fixture frock for machining. BACKGROUND

[0002] In the machining process (including cutting, drilling, polishing, polishing, etc.), the corresponding variable fixture frock is needed to clamp the workpiece to be processed, so as to facilitate subsequent processing. The prior art patent number CN 220260253U discloses a variable fixture frock for machining, which comprises a mounting seat, a rotating frame is rotatably connected to the upper left end of the mounting seat, a double screw rod is rotatably connected to the inner end of the rotating frame, a rotating block is coaxially fixedly connected to the right end of the double screw rod, sliding seats are threadedly connected to the left and right sides of the double screw rod, clamps are connected to the sliding seats, a hand wheel is rotatably connected to the upper right end of the mounting seat, a one-way screw rod is coaxially fixedly connected to the left side of the hand wheel, and a movable seat is slidably connected to the mounting seat through the one-way screw rod. The utility model relates to the technical field of machining. The variable fixture frock for machining, the one-way screw rod drives the movable seat to move left, and the movable seat drives the rotating frame, the double screw rod, the rotating block, the sliding seat, the clamp and the workpiece to be processed to rotate through the top frame. At the same time, the rotating end of the rotating frame drives the pointer to rotate, and the pointer reads out the rotation angle of the rotating frame in cooperation with the dial:

[0003] However, the patent still has the following problems in actual use: the two clamps are synchronously moved by the screw rod to clamp the product, but the two clamps can only clamp two sides of the product, and other sides cannot be clamped and fixed, so the stability is poor, displacement is easy to occur during machining, and the price qualified rate of the product is reduced. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a variable fixture frock for machining to solve the problems in the background art.

[0005] The utility model provides the following technical scheme: a variable fixture frock for machining, comprising a supporting plate, two recesses are formed in the top surface of the supporting plate, the two recesses are symmetrically designed about the diagonal line of the supporting plate, clamp A and clamp B are slidably installed on the top surfaces of the two recesses respectively, clamp A and clamp B are both in L-shaped structure, upper notches and lower notches are formed in the two sides of clamp A and clamp B respectively, and the upper notches and the lower notches of clamp A and clamp B are formed in complementary state through the inversion symmetry of the top surface of the bottom plate about the diagonal line of the bottom plate, and a driving mechanism is arranged below the bottom plate.

[0006] Preferably, a bottom plate is hingedly connected to one end of the bottom surface of the support plate, and a hydraulic rod is hingedly connected to the other end of the bottom plate, and a piston end of the hydraulic rod is hingedly connected to the support plate.

[0007] Preferably, the driving mechanism comprises two bearing seats fixedly installed on the bottom surface of the bottom plate, a bidirectional screw rod rotatably installed between the two bearing seats, two sliding blocks threadedly sleeved on the bidirectional screw rod, and a servo motor fixedly installed on one side of one of the bearing seats, and the two sliding blocks are slidably installed on the inside of the two grooves, and the clamping A and the clamping B are connected above the two sliding blocks.

[0008] Preferably, the surface of the bidirectional screw rod is provided with two threads symmetrically about the center of the bidirectional screw rod, and the two sliding blocks are threadedly sleeved at the two threads.

[0009] Preferably, the inside of each of the two grooves is provided with two folding plates, one end of each of the folding plates is connected to the sliding block, and the other end of each of the folding plates is connected to the inner wall of one end of the groove.

[0010] Preferably, the two sides of each of the folding plates are slidably installed on the side walls of the groove.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a driving mechanism is arranged to drive the relative synchronous movement of the clamping A and the clamping B to clamp and fix the product on the top surface of the support plate, the clamping A and the clamping B form a rectangular structure when meeting each other, and the four directions of the product can be synchronously clamped and fixed, the fixing effect of the product is greatly improved compared with the two-face clamping of the prior art, the displacement of the product during processing is avoided, and the product is always fixed at the center of the top surface of the support plate. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model.

[0014] Figure 2 It is the clamping structure schematic diagram of the utility model.

[0015] Figure 3 It is the driving mechanism installation structure schematic diagram of the utility model.

[0016] Figure 4 It is the bottom plate cross section structure schematic diagram of the utility model.

[0017] The figure mark is: 1, bottom plate, 2, support plate, 3, groove, 4, clamping A, 5, clamping B, 6, driving mechanism, 7, hydraulic rod, 8, upper notch, 9, lower notch, 10, bearing seat, 11, bidirectional screw rod, 12, sliding block, 13, servo motor, 14, folding plate. DETAILED DESCRIPTION

[0018] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0019] The present application provides a variable clamp tool for machining, as shown in Figures 1-4 The top surface of the support plate 2 is provided with two grooves 3, the two grooves 3 are symmetrically designed about the diagonal line of the support plate 2, the top surface of the two grooves 3 is respectively slidably installed with the clamping A 4 and the clamping B 5, the clamping A 4 and the clamping B 5 are both in L-shaped structure, the two sides of the clamping A 4 and the clamping B 5 are provided with upper notches 8 and lower notches 9, and the clamping A 4 and the clamping B 5 are formed in reverse symmetry about the diagonal line of the bottom plate 1 on the top surface of the bottom plate 1, so that the upper notch 8 and the lower notch 9 on the clamping A 4 are respectively complementary to the lower notch 9 and the upper notch 8 on the clamping B 5, and the upper notch 8 and the lower notch 9 designed on the clamping A 4 and the clamping B 5 form a complementary state, and the bottom surface of the bottom plate 1 is provided with a driving mechanism 6 below the two grooves 3.

[0020] The driving mechanism 6 drives the clamping A 4 and the clamping B 5 to move synchronously relative to the product on the top surface of the support plate, and the clamping A 4 and the clamping B 5 form a rectangular structure when they meet and complement each other, so that the product can be clamped and fixed in four directions synchronously, which greatly improves the fixing effect of the product compared with the two-face clamping of the prior art, avoids the displacement of the product during machining, and makes the product always fixed at the center of the top surface of the support plate 2.

[0021] Further, the bottom plate 1 is hingedly connected to one end of the support plate 2, and the other end of the bottom plate 1 is hingedly connected to the hydraulic rod 7, and the piston end of the hydraulic rod 7 is hingedly connected to the support plate 2.

[0022] The two hydraulic rods 7 are arranged, and under the action of the hinge, the support plate 2 is turned upward, so that an inclined angle is formed between the support plate 2 and the bottom plate 1, thereby adjusting the angle of the clamped and fixed product, and improving the practicability of the fixing device.

[0023] As one of the embodiments, as shown in Figure 3As shown in the figure, the driving mechanism 6 comprises two bearing seats 10 fixedly installed on the bottom surface of the bottom plate 1, a bidirectional screw rod 11 rotatably installed between the two bearing seats 10, two sliding blocks 12 threadedly sleeved on the bidirectional screw rod 11, and a servo motor 13 fixedly installed on the side surface of one of the bearing seats 10. The top portions of the two sliding blocks 12 are slidably installed in the two grooves 3 respectively, and the clamping B5 is installed above the two sliding blocks 12. The driving mechanism 6 is connected. The surface of the bidirectional screw rod 11 is provided with two threads symmetrical about the center of the bidirectional screw rod 11, and the two sliding blocks 12 are threadedly sleeved on the two threads respectively.

[0024] The driving principle is that the servo motor 13 drives the bidirectional screw rod 11 to rotate. Since the two sliding blocks 12 are connected with the two threads of the bidirectional screw rod 11 respectively, and are limited by the sliding of the two grooves 3, the two sliding blocks 12 are close to or away from each other, so as to realize the close or away of the clamping A4 and the clamping B5, and further realize the clamping or unclamping of the product.

[0025] As one of the embodiments, as shown in the figure, Figure 4 The inside of the two grooves 3 is provided with two folding plates 14. One end of the folding plate 14 is connected with the sliding block 12, and the other end is connected with the inner wall of one end of the groove 3. The two sides of the folding plate 14 are slidably installed on the side walls of the groove 3 respectively.

[0026] The folding plate 14 is arranged to cover the groove 3, and the folded folding plate 14 automatically shrinks and folds with the movement of the sliding block 12, which can effectively prevent the product on the top surface of the supporting plate 2 from falling into the driving mechanism 6 through the groove 3 during processing, and protect the driving mechanism 6.

[0027] It should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection. "Up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may change;

[0028] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above embodiment. Any equivalent modification or change made by those skilled in the art according to the disclosed content of the present application shall be included in the protection scope recorded in the claims.

Claims

1. A variable fixture for machining, comprising a support plate (2), characterized in that: The top surface of the support plate (2) is provided with two grooves (3), the two grooves (3) are symmetrically designed about the diagonal line of the support plate (2), the top surface of the two grooves (3) is respectively provided with clamping A (4) and clamping B (5), the clamping A (4) and the clamping B (5) are both in L-shaped structure, the two sides of the clamping A (4) and the clamping B (5) are provided with upper notches (8) and lower notches (9), and the clamping A (4) and the clamping B (5) are formed in reverse symmetry about the diagonal line of the bottom plate (1) on the top surface of the bottom plate (1), so that the upper notches (8) and the lower notches (9) of the clamping A (4) and the clamping B (5) are in complementary state, and the bottom surface of the bottom plate (1) is provided with a driving mechanism (6) below the two grooves (3).

2. A variable fixture tool for machining according to claim 1, characterized in that: It also includes a bottom plate (1) hinged to one end of the support plate (2), the other end of the bottom plate (1) is hinged with a hydraulic rod (7), and the piston end of the hydraulic rod (7) is hinged to the support plate (2).

3. The variable fixture tooling for machining according to claim 1, wherein: The driving mechanism (6) includes two bearing seats (10) fixedly installed on the bottom surface of the bottom plate (1), a bidirectional screw rod (11) rotatably installed between the two bearing seats (10), two sliding blocks (12) threadedly sleeved on the bidirectional screw rod (11), and a servo motor (13) fixedly installed on the side surface of one of the bearing seats (10), the top of the two sliding blocks (12) is respectively slidably installed in the two grooves (3), and the clamping B (5) and the driving mechanism (6) above the two grooves (3) are connected.

4. The variable fixture tooling for machining according to claim 3, wherein: The surface of the bidirectional screw rod (11) is provided with two threads symmetrically about the center of the bidirectional screw rod (11), and the two sliding blocks (12) are respectively threadedly sleeved on the two threads.

5. The variable fixture tooling for machining according to claim 3, wherein: The inside of the two grooves (3) is provided with two folding plates (14), one end of the folding plate (14) is connected with the sliding block (12), and the other end is connected with the inner wall of one end of the groove (3).

6. A variable fixture tool for machining according to claim 5, wherein: The two sides of the folding plate (14) are respectively slidably installed on the side wall of the groove (3).

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