Jaw for special machine

Abstract

The jaw for the special machine belongs to the technical field of clamps and comprises a base, a fixed base and an adjusting base are arranged at the top of the base, mounting grooves are formed in the two ends of the top of the fixed base and the two ends of the top of the adjusting base, a special-shaped groove is formed in one end of each mounting groove, and clamping plates are arranged on the opposite sides of the fixed base and the adjusting base. Telescopic plates are arranged at the two ends of one side of each clamping plate, the periphery of one end of each telescopic plate is slidably sleeved with an inserting plate, a special-shaped end is welded to one end of the outer portion of each inserting plate, and inserting mounting of the clamping plates is achieved by forming mounting grooves and special-shaped grooves in the tops of the fixed base and the adjusting base in cooperation with the inserting plates and the special-shaped ends arranged on one sides of the clamping plates; the clamping plate is fixed to one side of the fixed base or the adjusting base, then the inserting plate is fixed to the interior of the mounting groove through the positioning plate and the inserting groove in cooperation with the clamping block and the clamping hole in an inserting-matched-clamping mode, and therefore the purpose of stable mounting is achieved, and the dismounting, mounting and overhauling efficiency is greatly improved through the design.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a jaw for a special machine. Background Art

[0002] The jaws in the testing machine are used to clamp the test object for tensile testing. The test object can be a tensile test bar. The traditional jaws are divided into upper jaws and lower jaws. The upper jaw is installed at the bottom of the upper beam, and the lower jaw is installed at the top of the lower beam. The upper jaw and the lower jaw each include two clamping blocks, and the two clamping blocks are respectively installed on two symmetrically arranged driving mechanisms. V-shaped grooves are provided in the middle of the two clamping blocks close to the side walls, and multiple evenly distributed second tooth grooves are provided on the two inner side walls of the V-shaped grooves. When it is necessary to clamp the test object, the two ends of the test object are respectively placed in the upper jaw and the lower jaw. Through the driving device, the four V-shaped grooves respectively clamp the two ends of the test object, so as to carry out a tensile test.

[0003] At present, the existing jaws need to be disassembled for maintenance after being used for a period of time. Since most jaws are fixed on the base by a combination of multiple bolts, it is troublesome to disassemble and repair them, which greatly affects the efficiency of disassembly and maintenance and is not conducive to rapid disassembly and maintenance. For this reason, we propose a jaw for special machines. Utility Model Content

[0004] The purpose of the utility model is to provide a jaw for a special machine to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jaw for a special machine, comprising a base, a mounting groove and a special-shaped end head, a fixed base and an adjustment base are respectively provided at two ends of the top of the base, mounting grooves are provided at both ends of the tops of the fixed base and the adjustment base, a special-shaped groove is provided at one end of the mounting groove, clamps are provided on opposite sides of the fixed base and the adjustment base, telescopic plates are fixedly installed at both ends of one side of the clamp, a plug-in plate is provided on the outer peripheral sliding sleeve of one end of the telescopic plate, a special-shaped end head is welded to one end of the plug-in plate, and the clamp is fixedly installed on the opposite sides of the adjustment base and the fixed base through the telescopic plate, the plug-in plate, the special-shaped end head mounting groove and the special-shaped groove.

[0006] Preferably, slots are provided at the top of the inner walls on both sides of the installation groove, and the slot provided at the top of one of the inner walls extends to the outside, a positioning plate is inserted into the slot, and slidable and retractable clamping blocks are provided at one end and both sides of the middle of the positioning plate, and clamping holes are provided on the inner wall surfaces on both sides of the slot, a connecting rod is provided inside the positioning plate, one end of the connecting rod extends to the outside of the positioning plate and is slidably connected to the positioning plate, the clamping block is fixedly connected to the connecting rod, and a clamping spring is provided inside the positioning plate, and both ends of the clamping spring are respectively fixedly connected to the two connecting rods.

[0007] Preferably, a tension spring is provided inside the plug board, and two ends of the tension spring are fixedly connected to the plug board and the telescopic plate respectively.

[0008] Preferably, a pressing groove is provided on one side of the connecting rod extending to one end outside the positioning plate, and the pressing grooves on the two connecting rods are opened in the same direction.

[0009] Preferably, a screw is provided in the inner groove of the top of the base, both ends of the screw are movably connected to the base through bearings, the outer periphery of the screw is spirally connected to a threaded block, and the top of the threaded block is fixedly connected to the adjustment base by welding.

[0010] Preferably, both ends of the adjustment base are provided with limit sliders, both sides of the outer top of the base are provided with limit grooves, and the bottom end of the limit slider extends into the interior of the limit groove and is slidably connected to the inner wall thereof.

[0011] Preferably, a driving motor is fixedly mounted on one end of the outer portion of the base, and a terminal end of an output shaft of the driving motor is fixedly connected to a screw rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By opening installation grooves and special-shaped grooves on the top of the fixed base and the adjustable base, and cooperating with the plug-in plate and the special-shaped end provided on one side of the splint, the splint can be plugged in and installed, so that the splint can be fixed on one side of the fixed base or the adjustable base, and then the positioning plate and the slot are used, in conjunction with the card block and the card hole, to fix the plug-in plate inside the installation groove in a plug-in, card-fitting and card-fitting manner, thereby achieving the purpose of stable installation. This design greatly improves the efficiency of disassembly, assembly and maintenance.

[0014] 2. By arranging a telescopic plate and a plug-in plate on one side of the splint, and arranging a tension spring inside the plug-in plate, under the action of the tension spring, the side of the splint connected to the telescopic plate fits tightly with the outer side of the fixed base or the adjustment base. This design ensures that when the workpiece is clamped, the force will not act on the plug-in plate, ensuring the stability and accuracy of the clamping, and avoiding the splint from loosening after installation, which affects the stability of the workpiece clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the base and the clamping plate structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the telescopic plate structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning plate of the utility model.

[0019] In the figure: 1. base; 2. screw; 3. drive motor; 4. fixed base; 5. adjustment base; 6. threaded block; 7. limit groove; 8. limit slider; 9. installation groove; 10. special-shaped groove; 11. slot; 12. clamping hole; 13. clamping plate; 14. plug-in board; 15. special-shaped end; 16. telescopic plate; 17. tension spring; 18. positioning plate; 19. connecting rod; 20. clamping block; 21. pressing groove; 22. clamping spring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4The utility model provides a technical solution for the jaws of a special machine: it includes a base 1, a mounting groove 9 and a special-shaped end 15, a fixed base 4 and an adjusting base 5 are respectively arranged at the top two ends of the base 1, mounting grooves 9 are opened at the top two ends of the fixed base 4 and the adjusting base 5, a special-shaped groove 10 is arranged at one end of the mounting groove 9, and a clamping plate 13 is arranged on the opposite sides of the fixed base 4 and the adjusting base 5, and a telescopic plate 16 is fixedly installed at both ends of one side of the clamping plate 13, and a plug-in plate 14 is provided on the outer peripheral sliding sleeve of one end of the telescopic plate 16, and a special-shaped end 15 is welded on the outer end of the plug-in plate 14, and the clamping plate 13 is fixedly installed on the opposite sides of the adjusting base 5 and the fixed base 4 through the telescopic plate 16, the plug-in plate 14, the mounting groove 9 and the special-shaped groove 10 of the special-shaped end 15.

[0022] Specifically, slots 11 are provided at the top of the inner walls on both sides of the installation groove 9, and the slot 11 provided at the top of the inner wall on one side extends to the outside, a positioning plate 18 is inserted into the slot 11, and slidable and retractable clamping blocks 20 are provided at one end and both sides of the middle of the positioning plate 18, and clamping holes 12 are provided on the inner wall surfaces on both sides of the slot 11. A connecting rod 19 is provided inside the positioning plate 18, and one end of the connecting rod 19 extends to the outside of the positioning plate 18 and is slidably connected thereto, and the clamping block 20 is fixedly connected to the connecting rod 19, and a clamping spring 22 is provided inside the positioning plate 18, and the two ends of the clamping spring 22 are respectively fixedly connected to the two connecting rods 19.

[0023] Specifically, a tension spring 17 is disposed inside the plug board 14 , and two ends of the tension spring 17 are fixedly connected to the plug board 14 and the telescopic plate 16 , respectively.

[0024] Specifically, a pressing groove 21 is formed on one side of the connecting rod 19 extending to one end outside the positioning plate 18 , and the pressing grooves 21 on the two connecting rods 19 are formed in the same direction.

[0025] Specifically, a screw rod 2 is provided in the inner groove of the top of the base 1, and both ends of the screw rod 2 are movably connected to the base 1 through bearings. The outer periphery of the screw rod 2 is spirally connected to a threaded block 6, and the top of the threaded block 6 is fixedly connected to the adjustment base 5 by welding.

[0026] Specifically, limit sliders 8 are provided at both ends of the adjustment base 5, and limit grooves 7 are provided on both sides of the outer top of the base 1. The bottom end of the limit slider 8 extends to the inside of the limit groove 7 and is slidably connected to its inner wall.

[0027] Specifically, a driving motor 3 is fixedly mounted on one end of the outer portion of the base 1 , and a terminal end of an output shaft of the driving motor 3 is fixedly connected to the screw rod 2 .

[0028] In the present embodiment, when in use, the screw rod 2 is driven to rotate by the driving motor 3 provided, so that the screw block 6 is driven to move along the trajectory of the screw rod 2, thereby adjusting the position of the adjusting base 5 and the clamping plate 13, and cooperating with the fixed base 4 and the clamping plate 13 on one side thereof to clamp the workpiece. When the clamping plate 13 needs to be disassembled for inspection, the pressure groove 21 at the outer end of the connecting rod 19 is squeezed to drive the two connecting rods 19 to approach each other, so that the clamping block 20 is retracted toward the inside of the positioning plate 18 to disengage from the clamping hole 12, and the clamping state of the positioning plate 18 is released. Then, the positioning plate 18 is pulled out from the inside of the slot 11, and the positioning plate 18 is released. The limit of the top of the plug-in plate 14 by the positioning plate 18 is released, and then the clamping plate 13 is lifted upward, so that it drives the telescopic plate 16, the plug-in plate 14 and the special-shaped end The head 15 moves toward the top of the mounting groove 9 and the special-shaped groove 10 to achieve the purpose of disassembly for the convenience of inspection and maintenance. After the inspection is completed and it is installed, the clamp 13 is pulled to extend the telescopic plate 16 outward, and then the special-shaped end head 15 and the plug-in plate 14 are inserted into the special-shaped groove 10 and the mounting groove 9. Under the action of the tension spring 17, the side of the clamp 13 connected to the telescopic plate 16 is tightly fitted with the outer side of the fixed base 4 or the adjustment base 5. This design ensures that when the workpiece is clamped, the force will not act on the plug-in plate 14, ensuring the stability and accuracy of the clamping. Finally, the positioning plate 18 is inserted into the slot 11, and the clamping block 20 is clamped into the inside of the clamping hole 12 to realize the positioning function and ensure the stability of the clamp 13.

[0029] 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 jaw for a special machine, comprising a base (1), a mounting groove (9) and a special-shaped end (15), characterized in that: A fixed base (4) and an adjustable base (5) are respectively provided at the top ends of the base (1), and mounting grooves (9) are provided at the top ends of the fixed base (4) and the adjustable base (5). A special-shaped groove (10) is provided at one end of the mounting groove (9). Clamps (13) are provided on opposite sides of the fixed base (4) and the adjustable base (5), and telescopic plates (16) are fixedly installed at both ends of one side of the clamps (13). A plug-in plate (14) is provided on the outer periphery of one end of the telescopic plate (16). A special-shaped end head (15) is welded to one end of the plug-in plate (14). The clamps (13) are fixedly installed on the opposite sides of the adjustable base (5) and the fixed base (4) through the telescopic plate (16), the plug-in plate (14), the mounting grooves (9) and the special-shaped grooves (10) provided thereon.

2. The jaws for a special machine according to claim 1, characterized in that: The top of the inner wall on both sides of the installation groove (9) is provided with a slot (11), wherein the slot (11) provided at the top of the inner wall on one side extends to the outside, a positioning plate (18) is inserted into the slot (11), one end and both sides of the middle of the positioning plate (18) are provided with slidable and retractable clamping blocks (20), the inner wall surfaces on both sides of the slot (11) are provided with clamping holes (12), a connecting rod (19) is provided inside the positioning plate (18), one end of the connecting rod (19) extends to the outside of the positioning plate (18) and is slidably connected thereto, the clamping block (20) is fixedly connected to the connecting rod (19), a clamping spring (22) is provided inside the positioning plate (18), and the two ends of the clamping spring (22) are respectively fixedly connected to the two connecting rods (19).

3. The jaws for a special machine according to claim 1, characterized in that: A tension spring (17) is arranged inside the plug board (14), and two ends of the tension spring (17) are respectively fixedly connected to the plug board (14) and the telescopic plate (16).

4. The jaws for a special machine according to claim 2, characterized in that: A pressing groove (21) is provided on one side of the connecting rod (19) extending to one end outside the positioning plate (18), and the pressing grooves (21) on the two connecting rods (19) are opened in the same direction.

5. The jaws for a special machine according to claim 1, characterized in that: A screw rod (2) is arranged in the inner groove of the top of the base (1); both ends of the screw rod (2) are movably connected to the base (1) via bearings; a threaded block (6) is spirally connected to the outer periphery of the screw rod (2); and the top of the threaded block (6) is fixedly connected to the adjustment base (5) by welding.

6. The jaws for a special machine according to claim 1, characterized in that: Limiting slide blocks (8) are provided at both ends of the adjustment base (5), limiting grooves (7) are provided on both sides of the outer top of the base (1), and the bottom end of the limiting slide block (8) extends into the interior of the limiting groove (7) and is slidably connected to the inner wall thereof.

7. The jaws for a special machine according to claim 1, characterized in that: A driving motor (3) is fixedly mounted on one end of the outside of the base (1), and the output shaft end of the driving motor (3) is fixedly connected to the screw rod (2).

Images