Crankshaft centerless grinding manipulator clamping jaw

Abstract

The utility model provides a crankshaft centerless grinding manipulator clamping jaw, which belongs to the crankshaft processing technical field, and comprises a support, the inner wall of the support is provided with symmetrically distributed sliding chutes, the inner walls of the sliding chutes are slidably connected with sliding blocks, the outer walls of the sliding blocks are provided with extrusion grooves, the outer walls of the sliding blocks are fixedly connected with a moving frame, and the moving frame is provided with a clamping groove. An H-shaped groove is formed in the outer wall of the movable frame, the device further comprises a convenient-to-disassemble and replace assembly, the convenient-to-disassemble and replace assembly comprises a two-way screw rod B rotationally connected to the outer wall of the movable frame, and the outer wall of the two-way screw rod B is in threaded connection with limiting blocks which are symmetrically distributed. According to the utility model, the two-way screw rod B drives the limiting block to slide, so that the connecting block can be quickly locked and unlocked, the clamping jaw can be replaced without an additional tool, meanwhile, the sliding fit design of the H-shaped groove and the connecting block can ensure the stability of the connected clamping jaw, and the clamping jaws in different shapes can be replaced according to the type of the crankshaft through the replacement of the clamping jaw, so that the clamping jaw is convenient to use. And the universality of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crankshaft processing, specifically, a kind of crankshaft centerless grinding mechanical hand jaw. BACKGROUND

[0002] Crankshaft is the vital component in engine, responsible for the reciprocating linear motion of piston is converted into rotary motion, power output is provided for equipment, in the crankshaft processing flow, because workpiece shape is complex, precision requirement is strict, must rely on mechanical hand jaw to carry out accurate clamping positioning, guarantee the stability and consistency of processing.

[0003] Through the search, the patent with Chinese patent application No.

[0004] Although the above-mentioned patent does not need workers to carry crankshaft, effectively reduces the labor intensity of workers, improves crankshaft processing efficiency, but there are still the following deficiencies in use process: 1, jaw exists pawl replacement cumbersome, poor adaptability problem, it is difficult to quickly switch to meet the processing needs of different types of crankshafts;2, lack effective cleaning mechanism, iron filings produced in processing are easy to remain in jaw and workpiece surface, not only affect clamping accuracy, also shorten the service life of jaw.

[0005] Therefore, a crankshaft centerless grinding mechanical hand jaw is needed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of crankshaft centerless grinding mechanical hand jaw to solve the problems raised in the above background art.

[0007] In order to realize the above-mentioned invention purpose, the utility model provides the following technical solutions:

[0008] A kind of crankshaft centerless grinding mechanical hand jaw, including support, the support inner wall is equipped with the sliding slot of symmetrical distribution, the sliding slot inner wall is slidably connected with slider, the slider outer wall is equipped with extrusion slot, the slider outer wall is fixedly connected with moving frame, the moving frame outer wall is equipped with H type slot, further including:

[0009] The detachable replacement assembly comprises a bidirectional screw B rotatably connected to the outer wall of the moving frame, the outer wall of the bidirectional screw B is threadedly connected with symmetrically distributed limiting blocks, the limiting blocks are slidably connected with connecting blocks through clamping grooves, the connecting blocks are slidably connected with the H-shaped groove, the outer wall of the connecting blocks is fixedly connected with clamping claws, and the outer wall of the bidirectional screw B is fixedly connected with a knob.

[0010] The cleaning assembly is arranged on the outer wall of the support.

[0011] As a preferred technical scheme of the present application, the cleaning assembly comprises an installation plate fixedly connected to the outer wall of the support, the outer wall of the installation plate is fixedly connected with a communication pipe, and the outer wall of the communication pipe is fixedly connected with uniformly distributed spray pipes.

[0012] As a preferred technical scheme of the present application, the inner wall of the support is provided with symmetrically distributed guide grooves, the inner wall of the guide grooves is slidably connected with a concave frame, the outer wall of the concave frame is fixedly connected with symmetrically distributed extrusion rods, and the extrusion rods are located in the inner wall of the extrusion grooves.

[0013] As a preferred technical scheme of the present application, the top wall of the support is fixedly connected with a mounting frame, the outer wall of the mounting frame is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a bidirectional screw A, and the bidirectional screw A is threadedly connected with the concave frame.

[0014] As a preferred technical scheme of the present application, the outer wall of the limiting block is slidably connected with a sliding rod, and the sliding rod is fixedly connected with the moving frame.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] In the scheme of the present application:

[0017] 1. The bidirectional screw B drives the limiting block to slide, thereby realizing quick locking and unlocking of the connecting block, and the connecting block can be replaced without additional tools, meanwhile, the sliding cooperation design of the H-shaped groove and the connecting block can guarantee the stability of the clamping claw after connection, the clamping claw can be replaced according to the type of the crankshaft, the universality of the equipment is improved, the problems of complicated replacement and poor adaptability of the clamping claw in the prior art are solved, and the machining requirement of different types of crankshafts cannot be quickly switched;

[0018] 2. The cleaning assembly is fixed on the support through the installation plate, and the spray pipes are uniformly distributed around the clamping claw, so that the clamping claw and the surface of the crankshaft can be blown and cleaned before and after machining, iron residues are avoided from affecting the clamping precision, the service life of the clamping claw is prolonged, the machining quality is improved, the problem that there is no effective cleaning mechanism in the prior art is solved, and iron residues generated during machining are easily left on the clamping claw and the surface of the workpiece, which not only affects the clamping precision, but also shortens the service life of the clamping claw. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The whole structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 1;

[0020] Figure 2 The whole structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 2;

[0021] Figure 3 The bidirectional screw A part structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 3;

[0022] Figure 4 The concave frame part structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 4;

[0023] Figure 5 The bidirectional screw B part structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 5;

[0024] Figure 6 The moving frame part explosion diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 6;

[0025] Figure 7 The mounting plate part structure schematic diagram of the crankshaft centerless grinding mechanical hand clamp jaw provided by the application is shown in Figure 7.

[0026] Indicated in the figure:

[0027] 1, support; 2, mounting frame; 3, driving motor; 4, moving frame; 5, sliding groove; 6, sliding block; 7, extrusion groove; 8, concave frame; 9, guide groove; 10, bidirectional screw A; 11, extrusion rod; 12, H-shaped groove; 13, connecting block; 14, bidirectional screw B; 15, knob; 16, limiting block; 17, clamping groove; 18, clamping jaw; 19, mounting plate; 20, communication pipe; 21, spray pipe; 22, sliding rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0029] As Figures 1-7As shown, the crankshaft centerless grinder gripper proposed in this embodiment includes a bracket 1, which is connected to the robot. The inner wall of the bracket 1 has symmetrically distributed grooves 5, and a slider 6 is slidably connected to the inner wall of the grooves 5. The outer wall of the slider 6 has a pressing groove 7, and a movable frame 4 is fixedly connected to the outer wall of the slider 6. The outer wall of the movable frame 4 has an H-shaped groove 12. The movement of the slider 6 drives the movable frame 4 to move synchronously, thereby enabling the gripper 18 mounted on the movable frame 4 to open and close. The embodiment also includes:

[0030] The components are easy to disassemble and replace. The components include a bidirectional screw B14 rotatably connected to the outer wall of the movable frame 4. The outer wall of the bidirectional screw B14 is threaded with symmetrically distributed limiting blocks 16. The limiting blocks 16 are slidably connected to the connecting blocks 13 through the slots 17, and the connecting blocks 13 are slidably connected to the H-shaped groove 12. The outer wall of the connecting blocks 13 is fixedly connected with the claws 18. The outer wall of the bidirectional screw B14 is fixedly connected with the knob 15. When the claws 18 need to be replaced, rotating the knob 15 drives the bidirectional screw B14 to rotate. Due to the bidirectional thread design of the bidirectional screw B14, the limiting blocks 16 on it will move in opposite directions or away from each other along the slide bar 22. When the limiting blocks 16 disengage from the slots 17 of the connecting blocks 13, the connecting blocks 13 and the claws 18 can be slid out of the H-shaped groove 12 to achieve quick disassembly. The installation process is the reverse, making the operation simple and quick.

[0031] The cleaning component is located on the outer wall of bracket 1.

[0032] like Figure 7 As shown, in a preferred embodiment, based on the above method, the cleaning component further includes a mounting plate 19 fixedly connected to the outer wall of the bracket 1. A connecting pipe 20 is fixedly connected to the outer wall of the mounting plate 19, and uniformly distributed nozzles 21 are fixedly connected to the outer wall of the connecting pipe 20. During or after processing, an external air source supplies air to the nozzles 21 through the connecting pipe 20. The nozzles 21 are evenly distributed around the jaws 18, and the airflow they spray can effectively remove iron filings and impurities from the surface of the jaws 18 and the crankshaft processing area, ensuring clamping accuracy and processing quality.

[0033] like Figure 3 As shown, in a preferred embodiment, based on the above method, the inner wall of the support 1 is further provided with symmetrically distributed guide grooves 9. A concave frame 8 is slidably connected to the inner wall of the guide grooves 9, and symmetrically distributed extrusion rods 11 are fixedly connected to the outer wall of the concave frame 8. The extrusion rods 11 are located on the inner wall of the extrusion groove 7. When the concave frame 8 moves, the extrusion rods 11 fixed to its outer wall slide within the extrusion groove 7 of the slider 6. Due to the inclined design of the extrusion groove 7, the horizontal movement of the extrusion rods 11 is converted into the vertical movement of the slider 6 within the groove 5, thereby realizing the conversion of the force direction.

[0034] like Figure 1As shown, in a preferred embodiment, based on the above method, a mounting bracket 2 is fixedly connected to the top wall of the bracket 1, and a drive motor 3 is fixedly connected to the outer wall of the mounting bracket 2. A bidirectional screw A10 is fixedly connected to the output end of the drive motor 3, and the bidirectional screw A10 is threadedly connected to the concave frame 8. When the drive motor 3 starts, its output end drives the bidirectional screw A10 to rotate synchronously. The bidirectional screw A10 is threadedly engaged with the concave frame 8, and the concave frame 8 can only move in a straight line due to the restriction of the guide groove 9. Therefore, the rotation of the bidirectional screw A10 will drive the concave frame 8 to move in opposite directions or away from each other in the guide groove 9.

[0035] like Figure 6 As shown, in a preferred embodiment, based on the above method, the outer wall of the limiting block 16 is further slidably connected to a slide rod 22, and the slide rod 22 is fixedly connected to the movable frame 4.

[0036] Specifically, when using the crankshaft centerless grinder's gripper jaws: when it is necessary to replace the jaw 18, rotating the knob 15 drives the bidirectional screw B14 to rotate. Due to the bidirectional thread design of the bidirectional screw B14, the limiting block 16 on it will move in opposite directions along the slide bar 22. When the limiting block 16 disengages from the slot 17 of the connecting block 13, the connecting block 13 and the jaw 18 can be slid out of the H-shaped groove 12, achieving quick disassembly. The installation process is the reverse, making the operation simple and quick. During or after machining, an external air source supplies air to the nozzle 21 through the connecting pipe 20. The nozzle 21 is evenly distributed around the jaw 18, and the airflow it sprays can effectively remove iron filings and impurities from the surface of the jaw 18 and the crankshaft machining area, ensuring clamping accuracy and machining quality.

[0037] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A crankshaft centerless grinder gripper, comprising a support (1), characterized in that, The bracket (1) has symmetrically distributed sliding grooves (5) on its inner wall. A slider (6) is slidably connected to the inner wall of the sliding grooves (5). An extrusion groove (7) is provided on the outer wall of the slider (6). A movable frame (4) is fixedly connected to the outer wall of the slider (6). An H-shaped groove (12) is provided on the outer wall of the movable frame (4). The bracket also includes: The component is easy to disassemble and replace. The component includes a bidirectional screw B (14) rotatably connected to the outer wall of the movable frame (4). The outer wall of the bidirectional screw B (14) is threaded with symmetrically distributed limiting blocks (16). The limiting blocks (16) are slidably connected to a connecting block (13) through a slot (17). The connecting block (13) is slidably connected to an H-shaped groove (12). The outer wall of the connecting block (13) is fixedly connected with a claw (18). The outer wall of the bidirectional screw B (14) is fixedly connected with a knob (15). Cleaning components are installed on the outer wall of the bracket (1).

2. The crankshaft centerless grinding robot gripper according to claim 1, characterized in that, The cleaning assembly includes a mounting plate (19) fixedly connected to the outer wall of the bracket (1), a connecting pipe (20) fixedly connected to the outer wall of the mounting plate (19), and uniformly distributed nozzles (21) fixedly connected to the outer wall of the connecting pipe (20).

3. The crankshaft centerless grinding robot gripper according to claim 1, characterized in that, The inner wall of the bracket (1) is provided with symmetrically distributed guide grooves (9), and a concave frame (8) is slidably connected to the inner wall of the guide groove (9). A symmetrically distributed extrusion rod (11) is fixedly connected to the outer wall of the concave frame (8), and the extrusion rod (11) is located on the inner wall of the extrusion groove (7).

4. The crankshaft centerless grinding robot gripper according to claim 1, characterized in that, The bracket (1) has a mounting bracket (2) fixedly connected to its top wall. The mounting bracket (2) has a drive motor (3) fixedly connected to its outer wall. The output end of the drive motor (3) has a bidirectional screw A (10) fixedly connected to it. The bidirectional screw A (10) is threadedly connected to the concave bracket (8).

5. The crankshaft centerless grinding robot gripper according to claim 1, characterized in that, The outer wall of the limiting block (16) is slidably connected to a slide rod (22), and the slide rod (22) is fixedly connected to the moving frame (4).

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