Clamping device for mechanical part production

Abstract

The utility model belongs to the technical field of mechanical part production, and particularly discloses a clamping device for mechanical part production, which comprises a base, a placing table is fixedly mounted on the base, the top of the placing table is slidably connected with two groups of end abutting plates through an elastic abutting mechanism, and the two groups of end abutting plates are fixedly mounted on the base. The base is fixedly connected with two sets of guide sliding rods, and the outer surfaces of the two sets of guide sliding rods are jointly connected with a concave frame in a sliding mode through a driving mechanism. According to the clamping device for mechanical part production, through the symmetrical design of the elastic abutting mechanisms, it is ensured that the two ends of a pipe fitting are evenly stressed, the device can automatically adjust the position of the pipe fitting to the center of the containing table after the pipe fitting is placed, accurate positioning of the pipe fitting before clamping is ensured through the innovative design, and compared with traditional manual adjustment, the clamping device has the advantages that the labor intensity is lowered; according to the mechanism, the position deviation is greatly reduced, and a solid foundation is provided for subsequent clamping and machining, so that the machining precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical part production, in particular to a clamping device for mechanical part production. BACKGROUND

[0002] In the process of machining and producing mechanical parts, if the workpiece raw material is moved at will, the position thereof needs to be constantly adjusted, which greatly reduces the production efficiency, and the clamping by using a clamp can ensure that the workpiece is stable during machining, thereby maintaining machining precision.

[0003] According to the search, the patent with the publication number CN210938252U discloses a clamping device for precise mechanical part machining, which comprises a base, a storage table is installed on the upper side of the base, electric push rods are installed on the upper sides of the base at both ends, and lifting rods are in transmission connection with the upper sides of the electric push rods, the clamping device for precise mechanical part machining can clamp and fix the two ends of a mechanical part, the clamped and fixed mechanical part can be lifted to different machining heights through the electric push rods, and the machining angle of the mechanical part can be adjusted through the rotary motor, so that the machining process is facilitated.

[0004] Although the above scheme can adjust the machining angle of the part, before placing a tubular workpiece (hereinafter referred to as a pipe) on the placement table for machining, the position of the pipe needs to be adjusted, generally, the pipe is placed at the middle position of the placement table, so that the clamping mechanism can clamp the pipe at the middle position, and when the pipe cannot be accurately placed at the middle position, that is, the pipe deviates from the center position, the clamping mechanism may exert clamping force at a non-ideal position, which easily leads to unstable clamping and increases the risk of deviation and shaking of the pipe during the machining process. CONTENT OF THE UTILITY MODEL

[0005] In view of this, the utility model aims at solving the shortcomings in the background art and provides a clamping device for mechanical part production to solve the problems in the prior art.

[0006] To achieve the above purpose, the utility model provides a clamping device for mechanical part production, which comprises a base, a placement table is fixedly installed on the base, end head resisting plates are slidably connected to the top of the placement table through elastic resisting mechanisms, the number of the end head resisting plates is two groups, guide sliding rods are fixedly connected to the base, the number of the guide sliding rods is two groups, concave frames are slidably connected to the outer surfaces of the two groups of guide sliding rods through driving mechanisms, the number of the concave frames is two groups, inner stepped clamping frames are fixedly installed on the top of each of the two groups of concave frames, and a rubber layer is arranged on the inner side of the inner stepped clamping frame.

[0007] Preferably, the elastic resisting mechanism comprises a fixed cylinder fixedly installed on the inner side of the base, and an inner wall of the fixed cylinder is slidably connected with a piston.

[0008] Preferably, an outer surface of the piston is fixedly connected with a U-shaped rod, an outer surface of the U-shaped rod is movably arranged in one end of the fixed cylinder, one end of the U-shaped rod away from the piston is fixedly connected with an outer surface of the end head resisting plate, and the U-shaped rod is similar to a U-shaped rod but the distance between the two ends of the top and the bottom is different.

[0009] Preferably, an outer surface of the U-shaped rod is movably sleeved with a spring, and the outer surface of the U-shaped rod is provided with a handle.

[0010] Preferably, the driving mechanism comprises a motor fixedly installed on the base, and an output end of the motor is fixedly connected with a lead screw.

[0011] Preferably, an outer surface of the lead screw is threadedly sleeved with a displacement plate, and two ends of the displacement plate are fixedly connected with the inner sides of the concave frames, respectively, a rectangular hole is formed in the base, and the rectangular hole is slidably connected with the displacement plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1、The mechanical part production clamping device, the symmetric design of the elastic resisting mechanism ensures that the two ends of the pipe are uniformly stressed, the device can automatically adjust the position of the pipe to the center of the placing table after the pipe is placed, and the innovative design ensures the accurate positioning of the pipe before clamping.

[0014] 2、The mechanical part production clamping device, the driving mechanism can accurately clamp the pipe from the middle position during the mutual approach of the two groups of inner trapezoidal clamping frames, and the design of the inner stepped clamping frame can better adapt to the shape of the tubular workpiece and provide multi-point support, thereby increasing the stability of clamping. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the internal structure of the base.

[0017] Figure 3 It is a schematic diagram of the surface structure of the U-shaped rod of the application;

[0018] Figure 4 It is a schematic diagram of the internal structure of the fixed cylinder.

[0019] Wherein: 1, base; 2, placing table; 3, end head stop plate; 4, fixed cylinder; 5, piston; 6, U-shaped rod; 7, spring; 8, handle; 9, guide sliding rod; 10, concave frame; 11, inner stepped clamping frame; 12, rubber layer; 13, motor; 14, screw; 15, displacement plate; 16, rectangular hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0021] Please refer to Figures 1-4 A clamping device for mechanical part production, comprising a base 1, the base 1 is fixedly installed with a placing table 2, the side view of the part of the placing table 2 where the pipe is placed is inverted triangular, which is to improve the stability of pipe clamping, the top of the placing table 2 is slidably connected with end head stop plates 3 through elastic stop mechanisms, and the number of the end head stop plates 3 is set to two groups, the base 1 is fixedly connected with guide sliding rods 9, and the number of the guide sliding rods 9 is set to two groups, the outer surfaces of the two groups of guide sliding rods 9 are commonly slidably connected with concave frames 10 through driving mechanisms, and the number of the concave frames 10 is set to two groups, the tops of the two groups of concave frames 10 are fixedly installed with inner stepped clamping frames 11, and the inner sides of the inner stepped clamping frames 11 are provided with rubber layers 12.

[0022] Through the above technical solution, the pipe needs to be stabilized before being processed by the device, and during the process, the pipe is placed on the placing table 2, and the elastic stop mechanisms near the two ends of the placing table 2 can make the two groups of end head stop plates 3 resist the two ends of the pipe with the same force, so that the pipe can be moved to the middle position on the placing table 2, and finally the driving mechanism can make the two groups of inner stepped clamping frames 11 stably clamp the pipe at the correct position.

[0023] Specifically, the elastic stop mechanism comprises a fixed cylinder 4 fixedly installed on the inner side of the base 1, and the inner wall of the fixed cylinder 4 is slidably connected with a piston 5.

[0024] Through the above technical solution, the design of the piston 5 is to make it slide smoothly in the fixed cylinder 4, so as to keep the stability of the U-shaped rod 6 during movement.

[0025] Specifically, the outer surface of the piston 5 is fixedly connected with the U-shaped rod 6, and the outer surface of the U-shaped rod 6 is movably arranged in one end of the fixed cylinder 4. The end of the U-shaped rod 6 away from the piston 5 is fixedly connected with the outer surface of the end head abutting plate 3.

[0026] Through the above technical scheme, the U-shaped rod 6 passes through the base 1 and one end of the fixed cylinder 4. Two U-shaped rods 6 are connected with one handle 8, that is, the movement of the two U-shaped rods 6 is synchronously controlled by one handle 8.

[0027] Specifically, the outer surface of the U-shaped rod 6 movably sleeved with the spring 7, and the outer surface of the U-shaped rod 6 is provided with the handle 8.

[0028] Through the above technical scheme, the two ends of the spring 7 are fixedly connected with the inner wall of the fixed cylinder 4 and the outer surface of the piston 5, respectively. The spring 7 can apply an elastic abutting force to the piston 5, so that the piston 5 slides along the inner wall of the fixed cylinder 4. During the sliding process, the other end of the U-shaped rod 6 drives the end head abutting plate 3 to move synchronously.

[0029] Specifically, the driving mechanism includes a motor 13 fixedly installed on the base 1, and the output end of the motor 13 is fixedly connected with a lead screw 14.

[0030] Through the above technical scheme, the lead screw 14 is provided with threads of the same length and opposite directions from the middle to both ends. This means that during the rotation of the lead screw 14, the two groups of displacement plates 15 will move synchronously and reversely.

[0031] Specifically, the outer surface of the lead screw 14 is threadedly sleeved with the displacement plate 15, and the two ends of the displacement plate 15 are fixedly connected with the inner side of the concave frame 10. The base 1 is provided with a rectangular hole 16, and the rectangular hole 16 is slidably connected with the displacement plate 15.

[0032] Through the above technical scheme, the rectangular hole 16 is designed to facilitate the passage of the displacement plate 15, which plays a relative limiting role on the displacement plate 15 and makes it smoothly drive the concave frame 10.

[0033] Working principle: the device needs to be stabilized before processing the pipe, during which the pipe needs to be placed on the placing table 2, in order to ensure that the pipe is clamped and limited as much as possible in the middle part, therefore the elastic resisting mechanism is designed, that is, before placing the pipe on the placing table 2, the handle 8 needs to be pulled, during the pulling process of the handle 8, the U-shaped rod 6 pulls the piston 5 to make it slide along the inner wall of the fixed cylinder 4, during which the spring 7 is gradually extruded (at this time the spring 7 is in the compressed energy storage state), and the other end of the U-shaped rod 6 drives the end head resisting plate 3 to slide along the placing table 2 to the end head, until the pipe can be normally placed on the placing table 2, after placing the pipe, release the handle 8, under the elastic reset action of the spring 7, it will push against the piston 5 to slide reversely in the fixed cylinder 4 (compared with the moving direction of the piston 5 when the handle 8 is pulled), the end of the U-shaped rod 6 will push against the end head resisting plate 3 to slide along the placing table 2, and the end head resisting plate 3 pushes against the pipe (changes the position of the pipe on the placing table 2), because the elastic resisting mechanisms near the two ends of the placing table 2 are completely consistent (that is, the size, shape and parameters of the end head resisting plate 3, the U-shaped rod 6, the handle 8, the fixed cylinder 4, the piston 5 and the spring 7 are completely the same), and are symmetrically arranged at the two ends of the placing table 2, therefore the force of the two groups of end head resisting plates 3 resisting at the end of the pipe is consistent, so that the pipe is in the middle position of the placing table 2, which is convenient for the subsequent clamping equipment to clamp it in the accurate position, after preliminarily limiting the position of the pipe, the motor 13 can be started to drive the lead screw 14 to rotate, during which the lead screw 14 drives the two groups of displacement plates 15 to move close to each other, and then drives the concave frame 10 to slide along the guide sliding rod 9 to move close to each other synchronously, finally the two groups of inner stepped clamping frames 11 stably clamp the pipe during the moving close to each other, the stepped design inside the inner stepped clamping frame 11 can better adapt to the shape of the tubular workpiece, provide multi-point support, thereby increasing the stability of clamping, cooperating with the design of the rubber layer 12 can effectively reduce the deviation and shaking of the pipe during processing, and improve the stability and safety during processing.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for manufacturing mechanical parts, comprising a base (1), characterized in that: A placement platform (2) is fixedly installed on the base (1). The top of the placement platform (2) is slidably connected to an end plate (3) through an elastic support mechanism. There are two sets of end plates (3). A guide slide rod (9) is fixedly connected on the base (1). There are two sets of guide slide rods (9). The outer surfaces of the two sets of guide slide rods (9) are slidably connected to a concave frame (10) through a drive mechanism. There are two sets of concave frames (10). An inner step clamp (11) is fixedly installed on the top of each of the two sets of concave frames (10). A rubber layer (12) is provided on the inner side of the inner step clamp (11).

2. The clamping device for manufacturing mechanical parts according to claim 1, characterized in that: The elastic support mechanism includes a fixed cylinder (4) fixedly installed inside the base (1), and a piston (5) is slidably connected to the inner wall of the fixed cylinder (4).

3. The clamping device for manufacturing mechanical parts according to claim 2, characterized in that: A U-shaped rod (6) is fixedly connected to the outer surface of the piston (5), and the outer surface of the U-shaped rod (6) is movably inserted through one end of the fixed cylinder (4). The end of the U-shaped rod (6) away from the piston (5) is fixedly connected to the outer surface of the end plate (3).

4. The clamping device for manufacturing mechanical parts according to claim 3, characterized in that: A spring (7) is movably sleeved on the outer surface of the U-shaped rod (6), and a handle (8) is provided on the outer surface of the U-shaped rod (6).

5. The clamping device for manufacturing mechanical parts according to claim 1, characterized in that: The drive mechanism includes a motor (13) fixedly mounted on a base (1), and a lead screw (14) is fixedly connected to the output end of the motor (13).

6. The clamping device for manufacturing mechanical parts according to claim 5, characterized in that: The outer surface of the lead screw (14) is threaded with a shift plate (15), and the two ends of the shift plate (15) are fixedly connected to the inner side of the concave frame (10). The base (1) has a rectangular hole (16), and the rectangular hole (16) is slidably connected to the shift plate (15).

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