Sandwich biscuit type modular flat tongs

Abstract

The sandwich biscuit type modular flat tongs comprise two cylindrical pins, keys are movably connected to the surfaces of the cylindrical pins in a sleeving mode, fixed mouth tongs located above the keys are movably connected to the surfaces of the cylindrical pins in a sleeving mode, and a right guide rail and a left guide rail which are located below the keys are movably connected to the surfaces of the cylindrical pins in a sleeving mode; the outer surface of the key is movably connected with the inner surfaces of the fixed mouth pliers, the right guide rail and the left guide rail, guide rail supporting plates are movably installed at the bottoms of the right guide rail and the left guide rail, and left inner hexagon screws are rotatably installed at the bottoms of the guide rail supporting plates at equal intervals. According to the sandwich biscuit type modular flat tongs, in the daily use process, an operator uses a cylindrical pin and a key to position the fixed jaw tongs on the left guide rail and the right guide rail of the base, then a left inner hexagon screw penetrates through a guide rail supporting plate to fasten the fixed jaw tongs on the left guide rail and the right guide rail, and then a key bar is used for positioning the movable jaw tongs on a nut.

Description

Technical Field

[0001] The invention relates to the technical field of flat-nose pliers, in particular to sandwich biscuit-type modular 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 workbench of the machine tool to clamp the workpiece for cutting processing. Flat-nose pliers are mainly composed of a body, a movable jaw, a nut, a screw and other components. Its working principle is to rotate the lead screw through a wrench, and the lead screw nut drives the movable jaw body to move to achieve the clamping and loosening of the workpiece. Flat-nose pliers are widely used in mechanical equipment such as planers, milling machines, drilling machines, grinders and slotting machines. They are suitable for various planes, grooves, angles, etc. Processing, its advantages include simple and easy use and strong operability, and its disadvantage is that workpieces with insufficient rigidity may be deformed when clamped. When using flat-nose pliers, you need to pay attention to the following points: the machined surface of the workpiece must be higher than the jaws, otherwise the workpiece needs to be raised with parallel shims. In order to prevent the workpiece from loosening during planing, a relatively flat plane must be pressed against the shim and the jaws. When clamping the workpiece, a copper sheet is placed at the jaws to protect the processed surface. Therefore, sandwich biscuit-type modular flat-nose pliers are required.

[0003] When operators clamp and cut workpieces, they often use corresponding flat-nose pliers. Although existing flat-nose pliers can achieve the purpose of clamping and cutting, they are mostly integrated in actual use, which is inconvenient to disassemble and install, and has poor stability. Long-term use may reduce the accuracy of workpiece processing. Summary of the invention

[0004] The object of the present invention is to provide a sandwich biscuit type modular flat-nose pliers to solve the problem raised in the above background technology that operators often use corresponding flat-nose pliers when clamping and cutting workpieces. Although the existing flat-nose pliers can achieve the purpose of clamping and cutting, they are mostly integrated in actual use, which is inconvenient to disassemble and install, and has poor stability. Long-term use may reduce the accuracy of workpiece processing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sandwich biscuit type modular flat-nose pliers, comprising a cylindrical pin, the number of the cylindrical pins is two, the surface of the cylindrical pin is movably sleeved with a key, the surface of the cylindrical pin is movably sleeved with a fixed pliers located above the key, the surface of the cylindrical pin is movably sleeved with a right guide rail and a left guide rail located below the key, the outer surface of the key is movably connected to the inner surfaces of the fixed pliers and the right guide rail and the left guide rail, the bottom of the right guide rail and the left guide rail are movably installed with a guide rail support plate, the bottom of the guide rail support plate is equidistantly rotatably installed with a left hexagon socket screw, and the top of the left hexagon socket screw passes through the guide rail support plate, the right guide rail and the cylindrical pin and extends to the interior of the fixed pliers.

[0006] Preferably, a rear baffle is movably mounted on one side of the right guide rail, the left guide rail and the guide rail support plate, and a side hexagon socket screw is rotatably mounted on one side of the rear baffle, and the number of the side hexagon socket screws is four.

[0007] Preferably, the side hexagon socket screws have the same size, and one side of the side hexagon socket screws passes through the rear baffle and extends to the inside of the right guide rail, the left guide rail and the guide rail support plate.

[0008] Preferably, a bottom plate is movably installed at the bottom of the guide rail support plate, and bottom pins are movably installed at both ends of the bottom plate. The top of the bottom pin passes through the guide rail support plate and extends to the inside of the right guide rail and the left guide rail, and the outer surface of the bottom pin is movably connected to the inner surface of the right guide rail and the left guide rail.

[0009] Preferably, lower hexagon socket screws are rotatably mounted at both ends of the bottom of the base plate, and the tops of the lower hexagon socket screws penetrate the base plate and the guide rail support plate and extend to the inside of the right guide rail and the left guide rail.

[0010] Preferably, a screw is rotatably installed on one side of the rear baffle, a nut is threadedly sleeved on the surface of the screw, a key bar is movably installed on the top of the nut, a movable jaws is movably installed on the top of the key bar, a right hexagon socket screw is rotatably installed on the bottom of the nut, and the top of the right hexagon socket screw passes through the nut and extends to the interior of the movable jaws.

[0011] Preferably, one side of the screw rod passes through the rear baffle and extends to the right side of the rear baffle, and the surface of the screw rod is movably sleeved with a collar located on the right side of the rear baffle.

[0012] Preferably, a connecting pin is movably mounted on the surface of the collar, and one end of the connecting pin passes through the collar and extends to the interior of the screw rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The sandwich biscuit type modular flat-nose pliers, during daily use, the operator uses a cylindrical pin and a key to position the fixed pliers on the left and right guide rails of the base, then passes the left hexagon socket screw through the guide rail support plate to fasten the fixed pliers to the left and right guide rails, then uses the key bar to position the movable pliers on the nut, and fastens the movable pliers to the nut with the right hexagon socket screw, then uses the side hexagon socket screw to fix the rear baffle on the end faces of the left and right guide rails, then uses the bottom pin to position the bottom plate, the guide rail support plate, the left and right guide rails, then uses the lower hexagon socket screw to fasten them together, and at the same time screws into the nut, the handle penetrates into the interior of the rear baffle, there are also a collar and a connecting pin at the tail of the screw, rotating the screw can drive the nut and the movable pliers to realize the opening and closing of the jaws, and this operation method can be used to install the flat-nose pliers, and vice versa.

[0015] During daily use of the sandwich biscuit-type modular flat-nose pliers, the fixed pliers form a stable frame structure through the cylindrical pins and keys, the left hexagonal screw, and the rear baffle plate forms a stable frame structure with the left guide rail, the right guide rail, and the guide rail support plate through the side hexagonal screws. The fixed pliers determine the inner cavity width between the left guide rail and the right guide rail through two cylindrical pins, which provides a guarantee for the sliding clearance of the nut. At the same time, the fixed pliers determine the parallelism between the left guide rail and the right guide rail through two cylindrical pins and two keys, which provides a guarantee for the stable frame structure between the fixed pliers, the left guide rail and the right guide rail, the rear baffle plate and the bottom plate. This operation mode can improve the stability of the flat-nose pliers, thereby improving the accuracy of workpiece clamping and cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 It is a front view of the present invention;

[0018] Figure 3 A top view of the present invention;

[0019] Figure 4 A bottom view of the present invention;

[0020] Figure 5 It is a rear view of the present invention;

[0021] Figure 6 It is a right side view of the present invention;

[0022] Figure 7 It is a left view of the present invention.

[0023] In the figure: 1. Cylindrical pin; 2. Left hexagon socket screw; 3. Fixed pliers; 4. Moving pliers; 5. Right hexagon socket screw; 6. Key strip; 7. Nut; 8. Side hexagon socket screw; 9. Rear baffle; 10. Ring; 11. Screw; 12. Right guide rail; 13. Left guide rail; 14. Bottom pin; 15. Lower hexagon socket screw; 16. Connecting pin; 17. Guide rail support plate; 18. Bottom plate; 19. Key. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7The present invention provides a technical solution: a sandwich biscuit type modular flat-nose pliers, comprising a cylindrical pin 1, the number of the cylindrical pins 1 is two, the surface of the cylindrical pin 1 is movably sleeved with a key 19, the surface of the cylindrical pin 1 is movably sleeved with a fixed clamp 3 located above the key 19, the surface of the cylindrical pin 1 is movably sleeved with a right guide rail 12 and a left guide rail 13 located below the key 19, the outer surface of the key 19 is movably connected to the fixed clamp 3, and the inner surfaces of the right guide rail 12 and the left guide rail 13 are movably connected, the fixed clamp 3 can be positioned on the left guide rail 13 and the right guide rail 12 of the base through the cylindrical pin 1 and the key 19, and the bottoms of the right guide rail 12 and the left guide rail 13 are movably installed with guide rail supports The left hexagon socket screw 2 is equidistantly rotated and installed at the bottom of the guide rail support plate 17, and the top of the left hexagon socket screw 2 penetrates the guide rail support plate 17, the right guide rail 12 and the cylindrical pin 1 and extends to the inside of the fixed clamp 3. The right guide rail 12, the left guide rail 13 and one side of the guide rail support plate 17 are movably installed with a rear baffle 9. The fixed clamp 3 forms a stable frame structure through the cylindrical pin 1 and the key 19, the left hexagon socket screw 2, and the rear baffle 9 through the side hexagon socket screw 8 and the left guide rail 13, the right guide rail 12, and the guide support plate 17. At the same time, the left guide rail 13 and the right guide rail 12 are on the sleeper rail limiting surface on the rear baffle 9, the guide support plate 17, and the bottom The space between the plates 18 provides a sliding track for the nut 7 and the movable jaw. The fixed clamp 3 determines the inner cavity width between the left guide rail 13 and the right guide rail 12 through two cylindrical pins 1, which provides a guarantee for the sliding clearance of the nut 7. At the same time, the fixed clamp 3 determines the parallelism between the left guide rail 13 and the right guide rail 12 through two cylindrical pins 1 and two keys 19, which provides a guarantee for the fixed clamp 3, the left guide rail 13 and the right guide rail 12, the rear baffle 9 and the bottom plate 18 to form a stable frame structure. A side hexagon socket screw 8 is rotatably installed on one side of the rear baffle 9. The number of the side hexagon socket screws 8 is four, and the sizes of the side hexagon socket screws 8 are the same, and One side of the hexagon socket screw 8 penetrates the rear baffle 9 and extends to the inside of the right guide rail 12, the left guide rail 13 and the guide rail support plate 17. The hexagon socket screw 8 fixes the rear baffle 9 to the end surface of the left guide rail 13 and the right guide rail 12. The fixed pliers 3, the movable pliers 4, the left guide rail 13, the right guide rail 12, the guide rail support plate 17, the bottom plate 18 and the rear baffle 9 are respectively made of steel, which saves most of the investment in casting and forging molds. The steel material is cut and blanked, and then machined by milling machines, drilling machines, grinders, etc., and finally assembled, debugged, tested and packaged to complete the product. Due to the high initial precision of the steel, the surface machining allowance of most parts is less than 0.3mm, reducing processing costs and improving material utilization. There are a variety of steel materials. Different materials and different heat treatments can be used to produce products of different grades without changing the size of the drawing. When the main parameters of the product need to be changed, such as expanding the opening, it can be achieved by simply lengthening the size of 3-4 parts. This solves the problem that the main structural parts of the original flat-nose pliers are composed of steel parts, which require molds to be made, and the mold investment cost is large and the cycle is long. When the main parameters of the product change, it is necessary to re-open the mold for production, which has high investment costs and a long cycle; when the main structural parts of the pliers body are forgings and castings, the blank processing allowance is large, which is labor-intensive and time-consuming. Parts are prone to casting and other defects during the production process, which increases the material cost; the main structural parts of the pliers body are complex in shape, and defects are easily generated during heat treatment and quenching; the complex shape of the components makes it difficult to clamp during machining, which increases the complexity of the fixture and tooling, and increases the cost.

[0026] A bottom plate 18 is movably mounted at the bottom of the guide rail support plate 17. The establishment of the guide rail support plate 17 provides a sliding surface for the inverted T-shaped nut 7 inside the caliper body; at the same time, a clamping surface is provided for the bottom plate 18 and the outer side of the caliper body. Bottom pins 14 are movably mounted at both ends of the inside of the bottom plate 18. The top of the bottom pin 14 penetrates the guide rail support plate 17 and extends to the inside of the right guide rail 12 and the left guide rail 13, and the outer surface of the bottom pin 14 is movably connected to the inner surface of the right guide rail 12 and the left guide rail 13. Lower hexagon socket screws 15 are rotatably mounted at both ends of the bottom of the bottom plate 18, and the top of the lower hexagon socket screw 15 penetrates the bottom plate 18 and the guide rail support plate. 17 and extends to the inside of the right guide rail 12 and the left guide rail 13, the bottom pin 14 positions the bottom plate 18, the guide rail support plate 17, the left guide rail 13 and the right guide rail 12, and fastens them together with the lower hexagon socket screw 15, the left hexagon socket screw 2, the right hexagon socket screw 5, the side hexagon socket screw 8, and the lower hexagon socket screw 15 all adopt an elongated inverted T-shaped hollow structure, which effectively suppresses the outward rotation of the movable jaw, and a screw rod 11 is rotatably installed on one side of the rear baffle 9, and a nut 7 is threadedly sleeved on the surface of the screw 11. When the screw 11 rotates, it will drive the nut 7 to slide, and the top of the nut 7 is movably installed with a key strip 6, which will drive the key strip 6 when the nut 7 slides. When sliding occurs, the movable jaws 4 is movably installed on the top of the key bar 6, and the right hexagon socket screw 5 is rotatably installed on the bottom of the nut 7, and the top of the right hexagon socket screw 5 passes through the nut 7 and extends to the inside of the movable jaws 4. The fixed jaws 3, the movable jaws 4 and the mounting screws of the right guide rail 12 and the left guide rail 13 are all located at the bottom of the jaws, and the screws cannot be seen on them, thereby avoiding the defect of chips accumulated in the screw countersunk holes and meeting environmental protection requirements. When the key bar 6 slides, it will drive the movable jaws 4 to slide, and rotating the screw 11 can drive the nut 7 and the movable jaws 4 to open and close the jaws, and changing the length of the left guide rail 13, the right guide rail 12 and the screw 11 can realize the variable By increasing the maximum opening degree of the modular steel combined machine flat-nose pliers and changing the steel sizes of the fixed pliers 3 and the movable pliers 4, the jaw depth of the modular steel combined machine flat-nose pliers can be changed. One side of the screw rod 11 penetrates the rear baffle 9 and extends to the right side of the rear baffle 9. The surface of the screw rod 11 is movably sleeved with a collar 10 located on the right side of the rear baffle 9. The collar 10 drives the screw rod 11 to rotate when it rotates. A connecting pin 16 is movably installed on the surface of the collar 10, and one end of the connecting pin 16 penetrates the collar 10 and extends to the inside of the screw rod 11. Due to the design of the connecting pin 16, the connection between the collar 10 and the screw 11 can be tighter.

[0027] Working principle: The operator uses the cylindrical pin 1 and the key to position the fixed pliers 3 on the left guide rail 13 and the right guide rail 12 of the base, and then passes the left hexagon socket screw 2 through the guide rail support plate 17 to fasten the fixed pliers 3 to the left guide rail 13 and the right guide rail 12. Then the key bar 6 is used to position the movable pliers 4 on the nut 7, and the right hexagon socket screw 5 is used to fasten the movable pliers 4 to the nut 7. Next, the side hexagon socket screw 8 is used to fix the rear baffle 9 on the left guide rail 13 and the right guide rail. The end face of the rail 12 is then positioned using the bottom pin 14, and then fastened together with the lower hexagon socket screw 15. At the same time, the screw 11 is screwed into the nut 7, and the handle is inserted into the interior of the rear baffle 9. There is also a collar 10 and a connecting pin 16 at the tail of the screw 11. Rotating the screw 11 can drive the nut 7 and the movable jaw pliers 4 to open and close the jaws, and the flat-nosed pliers can be installed and used.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sandwich biscuit type modular flat-nose pliers, comprising a cylindrical pin (1), characterized in that: The number of the cylindrical pins (1) is two, and the surfaces of the cylindrical pins (1) are movably sleeved with a key (19), and the surface of the cylindrical pins (1) is movably sleeved with a fixed clamp (3) located above the key (19), and the surface of the cylindrical pins (1) is movably sleeved with a right guide rail (12) and a left guide rail (13) located below the key (19). The outer surface of the key (19) is movably connected to the fixed clamp (3) and the inner surfaces of the right guide rail (12) and the left guide rail (13). The bottoms of the right guide rail (12) and the left guide rail (13) are movably mounted with a guide rail support plate (17), and the bottom of the guide rail support plate (17) is rotatably mounted with a left hexagon socket screw (2) at an equidistant distance, and the top of the left hexagon socket screw (2) passes through the guide rail support plate (17), the right guide rail (12) and the cylindrical pin (1) and extends to the inside of the fixed clamp (3).

2. The sandwich biscuit type modular flat-nose pliers according to claim 1, characterized in that: A rear baffle (9) is movably mounted on one side of the right guide rail (12), the left guide rail (13) and the guide rail support plate (17), and a side hexagon socket head screw (8) is rotatably mounted on one side of the rear baffle (9), and the number of the side hexagon socket head screws (8) is four.

3. The sandwich biscuit type modular flat-nose pliers according to claim 2, characterized in that: The side hexagon socket screws (8) have the same size, and one side of the side hexagon socket screws (8) passes through the rear baffle (9) and extends to the inside of the right guide rail (12), the left guide rail (13) and the guide rail support plate (17).

4. The sandwich biscuit type modular flat-nose pliers according to claim 1, characterized in that: A bottom plate (18) is movably mounted at the bottom of the guide rail support plate (17), and bottom pins (14) are movably mounted at both ends of the bottom plate (18). The top of the bottom pin (14) passes through the guide rail support plate (17) and extends to the inside of the right guide rail (12) and the left guide rail (13), and the outer surface of the bottom pin (14) is movably connected to the inner surface of the right guide rail (12) and the left guide rail (13).

5. The sandwich biscuit type modular flat-nose pliers according to claim 4, characterized in that: The two ends of the bottom of the bottom plate (18) are rotatably mounted with lower hexagon socket screws (15), and the tops of the lower hexagon socket screws (15) penetrate the bottom plate (18) and the guide rail support plate (17) and extend to the inside of the right guide rail (12) and the left guide rail (13).

6. The sandwich biscuit type modular flat-nose pliers according to claim 2, characterized in that: A screw rod (11) is rotatably mounted on one side of the rear baffle (9), a nut (7) is threadedly sleeved on the surface of the screw rod (11), a key bar (6) is movably mounted on the top of the nut (7), a movable jaw clamp (4) is movably mounted on the top of the key bar (6), a right hexagon socket screw (5) is rotatably mounted on the bottom of the nut (7), and the top of the right hexagon socket screw (5) passes through the nut (7) and extends to the interior of the movable jaw clamp (4).

7. The sandwich biscuit type modular flat-nose pliers according to claim 6, characterized in that: One side of the screw rod (11) passes through the rear baffle (9) and extends to the right side of the rear baffle (9), and the surface of the screw rod (11) is movably sleeved with a collar (10) located on the right side of the rear baffle (9).

8. The sandwich biscuit type modular flat-nose pliers according to claim 7, characterized in that: A connecting pin (16) is movably mounted on the surface of the collar (10), and one end of the connecting pin (16) passes through the collar (10) and extends to the interior of the screw rod (11).

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