Quick-change type high-precision flat tongs

Abstract

The utility model discloses a quick-change type high-precision flat tongs, and particularly relates to the field of flat tongs, which comprises a base, a support is mounted at one end of the base, a locking rod is mounted on the support, one end of the locking rod is connected with a movable tongs body, the movable tongs body is connected with the base in a sliding manner, and the other end of the base is connected with a fixed tongs body in a bolted manner. The movable clamp body and the fixed clamp body are each provided with a pressing and fixing assembly, one side of each pressing and fixing assembly is provided with a locking assembly in a matched mode, the opposite sides of the movable clamp body and the fixed clamp body are each provided with a matching groove, and the bottom end of each matching groove is provided with a first screw hole; and pressing and fixing assemblies connected with the first screw holes are installed in the matching grooves correspondingly, and check blocks are arranged on one sides of the matching grooves. The top of the workpiece can be pressed and fixed, adjustment is convenient, the workpiece clamping fixity can be improved, the influence caused by vibration during workpiece machining is reduced, and therefore the machining precision of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-nose pliers, and more specifically, to a quick-change high-precision flat-nose pliers. Background Art

[0002] Flat-nose pliers, also known as machine vises, are a general-purpose clamp that is often used to install small workpieces. It is a random accessory of milling machines and drilling machines. It is fixed on the machine tool workbench to clamp the workpiece for cutting processing.

[0003] The utility model patent with patent publication number CN213438417U discloses a flat-nose pliers with quick-change jaws, which belongs to the technical field of flat-nose pliers. It includes a base, a fixed pliers body, a fixed seat, a movable pliers body and a screw. The upper surface of the base is provided with a T-slot, a fixed pliers body is fixed at one end of the T-slot, a fixed seat is fixed at the other end of the T-slot, a threaded hole is provided in the middle of the fixed seat, and a screw is screwed into the threaded hole. A T-slider is provided at the bottom of the movable pliers body, and the movable pliers body slides in the T-slot through the T-slider. The movable pliers body is movably connected to one end of the screw. The inner sides of the fixed pliers body and the movable pliers body are provided with a fixed groove for fixing the jaws, and a quick-change combined jaw is fixed in the fixed groove. The adapter block uses a dovetail groove and a pressure block structure to fix the sub-jaw. It only needs to loosen the hexagonal stud screw on the pressure block to remove the sub-jaw from the side, and then the sub-jaw to be replaced is inserted into the dovetail groove, and the hexagonal stud screw is locked, so that the replacement and fixation of the sub-jaw can be completed quickly.

[0004] However, in actual use, although this structure can facilitate the replacement of the jaws, it is necessary to press the top of the workpiece when clamping and fixing some workpieces to avoid the vibration generated during processing and causing the workpiece to tilt up and down or have a floating tendency. The flat-nose pliers cannot press the top, thereby reducing the processing accuracy. Therefore, a quick-change high-precision flat-nose pliers is proposed. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a quick-change high-precision flat-nose pliers to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-change high-precision flat-nose pliers, comprising a base, a support installed at one end of the base, a locking rod installed on the support, a movable pliers body connected to one end of the locking rod, the movable pliers body is slidably connected to the base, a fixed pliers body is bolted to the other end of the base, pressing components are installed on the movable pliers body and the fixed pliers body, and a locking component is provided on one side of each pressing component.

[0007] In normal use, the movable clamp body on the base is moved by rotating the locking rod, so that the movable clamp body can approach the fixed clamp body, so that the workpiece can be clamped and fixed;

[0008] When it is necessary to press down and fix the workpiece to reduce the impact of vibration during workpiece processing, the pressing and fixing components installed in the movable jaw body and the fixed jaw body are rotated respectively so that the two pressing and fixing components are raised to a height higher than the movable jaw body and the fixed jaw body, and then the top ends of the pressing and fixing components are rotated respectively, and then the two pressing and fixing components are lowered and adjusted so that the tops of the two pressing and fixing components press the top of the workpiece, and the two locking components are used to clamp the sides of the pressing and fixing components, thereby improving the limitation on the top of the pressing and fixing components and reducing the impact of the gap in the matching groove, thereby further improving the firmness of the workpiece clamping, thereby avoiding individual vibration during workpiece processing, and improving the accuracy of workpiece processing.

[0009] Preferably, the movable caliper body and the fixed caliper body are provided with matching grooves on opposite sides, each matching groove is provided with a first screw hole at the bottom end, and each matching groove is provided with a pressing assembly connected to the first screw hole.

[0010] Preferably, a stopper is provided on one side of the matching groove, and a locking assembly matching with the stopper is provided on the other side of the matching groove. The movable pliers body and the fixed pliers body are both provided with second screw holes, and each locking assembly is connected and matched with the corresponding second screw hole.

[0011] Preferably, a through opening is provided at the bottom of the base, the through opening is in a strip-shaped structure, and the bottom ends of the two pressing components pass through the through opening.

[0012] Preferably, the pressing assembly comprises a first screw rod, which passes through the through opening and is screwed into the first screw hole;

[0013] A pressing plate, the pressing plate is rotatably mounted on the top of the first screw;

[0014] A knob is mounted at the bottom end of the first screw rod.

[0015] Preferably, the length dimension of the connection between the first screw and the pressing plate from one side is smaller than the length dimension from the other side.

[0016] Preferably, the locking assembly comprises a second screw rod, and the second screw rod is screwed into the second screw hole;

[0017] A hand wheel, the hand wheel being mounted on one end of the second screw rod;

[0018] A guide rod, the guide rod is arranged parallel to the top of the second screw rod;

[0019] The slider is sleeved on the second screw rod and is slidably connected to the guide rod.

[0020] Technical effects and advantages of the utility model:

[0021] 1. Through the arrangement of the first screw, the pressing plate, the knob and the through hole, compared with the prior art, by rotating the knob, the first screw can be rotated in the first screw hole, so that the pressing plate can be lifted or pulled down, so that the workpiece can be pressed and fixed according to the thickness of the workpiece, so as to facilitate the pressing and fixing of the top of the workpiece of different specifications, and with the cooperation of the two pressing plates, the two pressing plates can be adjusted to different heights, so as to facilitate the pressing and fixing of the workpiece with irregular top, thereby improving the scope of application of the workpiece fixation, improving the practicality, and convenient and quick adjustment;

[0022] 2. Through the arrangement of the second screw, handwheel, guide rod slider and stop block, compared with the prior art, the second screw in the second screw hole can be screwed out or screwed in by turning the handwheel, so that the slider can slide along the guide rod under the guidance of the guide rod, so that the slider can approach the pressure plate to clamp and fix the pressure plate with the matching stop block, thereby improving the limitation on the top of the pressing component and reducing the influence of the matching groove gap, thereby further improving the firmness of the workpiece clamping, thereby avoiding individual vibration of the workpiece during processing, and thus improving the accuracy of workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the compacting state of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the pressing assembly of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the locking assembly of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the base of the utility model.

[0028] The accompanying drawings are marked as follows: 1. base; 2. support; 3. locking rod; 4. movable pliers body; 5. fixed pliers body; 6. pressing assembly; 601. first screw rod; 602. pressure plate; 603. knob; 7. locking assembly; 701. second screw rod; 702. hand wheel; 703. guide rod; 704. slider; 8. matching groove; 9. through opening. DETAILED DESCRIPTION

[0029] 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.

[0030] As attached Figure 1-5 The quick-change high-precision flat-nose pliers shown in the figure include a base 1, a support 2 is installed at one end of the base 1, a locking rod 3 is installed on the support 2, one end of the locking rod 3 is connected to a movable pliers body 4, the movable pliers body 4 is slidably connected to the base 1, and the other end of the base 1 is bolted to a fixed pliers body 5, and a pressing assembly 6 is installed on the movable pliers body 4 and the fixed pliers body 5, and a locking assembly 7 is provided on one side of each pressing assembly 6, and a matching groove is provided on the opposite side of the movable pliers body 4 and the fixed pliers body 5 8. A first screw hole is provided at the bottom end of each of the mating grooves 8, a pressing assembly 6 connected to the first screw hole is installed in each of the mating grooves 8, a stopper is provided on one side of the mating groove 8, a locking assembly 7 matched with the stopper is provided on the other side of the mating groove 8, a second screw hole is provided on the movable pliers body 4 and the fixed pliers body 5, and each locking assembly 7 is connected and matched with the corresponding second screw hole, a through hole 9 is provided at the bottom of the base 1, the through hole 9 is a strip-shaped structure, and the bottom ends of the two pressing assemblies 6 pass through the through hole 9.

[0031] In specific implementation, during normal use, the movable clamp body 4 on the base 1 is moved by rotating the locking rod 3, so that the movable clamp body 4 can approach the fixed clamp body 5, so that the workpiece can be clamped and fixed;

[0032] like Figure 2 As shown, when the workpiece needs to be pressed down and fixed to reduce the impact of vibration during workpiece processing, the pressing components 6 installed in the movable jaw body 4 and the fixed jaw body 5 are rotated respectively so that the two pressing components 6 are raised to a height higher than the movable jaw body 4 and the fixed jaw body 5, and then the top ends of the pressing components 6 are rotated 180 degrees respectively, and then the two pressing components 6 are lowered and adjusted so that the tops of the two pressing components 6 press the top of the workpiece, and the two locking components 7 are used to clamp the sides of the pressing components 6, thereby improving the limitation of the top of the pressing component 6 and reducing the impact of the gap of the matching groove 8, thereby further improving the firmness of the workpiece clamping, thereby avoiding the generation of individual vibrations during workpiece processing, and thus improving the accuracy of workpiece processing.

[0033] As attached Figure 3 As shown, the pressing assembly 6 includes a first screw rod 601, and the first screw rod 601 passes through the through opening 9 and is screwed into the first screw hole;

[0034] A pressing plate 602, wherein the pressing plate 602 is rotatably mounted on the top of the first screw rod 601;

[0035] The knob 603 is installed at the bottom end of the first screw rod 601 .

[0036] The length dimension of the connection between the first screw rod 601 and the pressing plate 602 from one side is smaller than the length dimension from the other side.

[0037] During specific implementation, by rotating the knob 603, the first screw 601 can be rotated in the first screw hole, so that the pressure plate 602 can be lifted or pulled down, so that the workpiece can be pressed and fixed according to the thickness of the workpiece, so as to facilitate the pressing and fixing of the tops of workpieces of different specifications, and with the cooperation of the two pressure plates 602, the two pressure plates 602 can be adjusted to different heights, so as to facilitate the pressing and fixing of workpieces with irregular tops, thereby increasing the scope of application of workpiece fixation and improving practicality.

[0038] As attached Figure 4 As shown, the locking assembly 7 includes a second screw rod 701, and the second screw rod 701 is screwed into the second screw hole;

[0039] A hand wheel 702, wherein the hand wheel 702 is mounted at one end of the second screw rod 701;

[0040] A guide rod 703, wherein the guide rod 703 is arranged parallel to the top of the second screw rod 701;

[0041] The slider 704 is sleeved on the second screw rod 701 , and the slider 704 is slidably connected to the guide rod 703 .

[0042] In specific implementation, by rotating the hand wheel 702, the second screw 701 in the second screw hole can be screwed out or screwed in, so that the slider 704 can slide along the guide rod 703 under the guidance of the guide rod 703, so that the slider 704 can approach the pressure plate 602 to clamp and fix the pressure plate 602 with the matching block.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-change high-precision flat-nose pliers, comprising a base (1), characterized in that: A support (2) is installed at one end of the base (1), a locking rod (3) is installed on the support (2), one end of the locking rod (3) is connected to a movable clamp body (4), the movable clamp body (4) is slidably connected to the base (1), and the other end of the base (1) is bolted to a fixed clamp body (5), and a pressing assembly (6) is installed on both the movable clamp body (4) and the fixed clamp body (5), and a locking assembly (7) is provided on one side of each pressing assembly (6).

2. The quick-change high-precision flat-nose pliers according to claim 1, characterized in that: The movable pliers (4) and the fixed pliers (5) are provided with matching grooves (8) on opposite sides thereof, each matching groove (8) is provided with a first screw hole at the bottom end thereof, and each matching groove (8) is provided with a pressing assembly (6) connected to the first screw hole.

3. The quick-change high-precision flat-nose pliers according to claim 2, characterized in that: A stopper is provided on one side of the matching groove (8), and a locking assembly (7) matching with the stopper is provided on the other side of the matching groove (8). The movable pliers body (4) and the fixed pliers body (5) are both provided with second screw holes, and each locking assembly (7) is connected and matched with the corresponding second screw hole.

4. The quick-change high-precision flat-nose pliers according to claim 3, characterized in that: A through opening (9) is provided at the bottom of the base (1), the through opening (9) is in a strip-shaped structure, and the bottom ends of the two pressing components (6) pass through the through opening (9).

5. The quick-change high-precision flat-nose pliers according to claim 4, characterized in that: The pressing assembly (6) comprises a first screw rod (601), wherein the first screw rod (601) passes through the through opening (9) and is screwed into the first screw hole; A pressing plate (602), the pressing plate (602) being rotatably mounted on the top of the first screw rod (601); The knob (603) is installed at the bottom end of the first screw rod (601).

6. The quick-change high-precision flat-nose pliers according to claim 5, characterized in that: The length dimension of the connection between the first screw rod (601) and the pressing plate (602) from one side is smaller than the length dimension from the other side.

7. The quick-change high-precision flat-nose pliers according to claim 6, characterized in that: The locking assembly (7) comprises a second screw rod (701), and the second screw rod (701) is screwed into the second screw hole; A hand wheel (702), wherein the hand wheel (702) is mounted on one end of the second screw rod (701); A guide rod (703), the guide rod (703) being arranged in parallel on the top of the second screw rod (701); The slider (704) is sleeved on the second screw rod (701), and the slider (704) is slidably connected to the guide rod (703).

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