Clamp for welding screen of coal picker

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a clamp for welding a screen of a coal picker, which comprises two clamping seats, one clamping seat is fixedly mounted on one side of a base, the other clamping seat is slidably mounted on the base, a rotating shaft is rotatably mounted on the upper portion of each clamping seat, and the rotating shaft is rotatably mounted on the other side of the base. A clamping plate is fixedly connected to the inner side end of the rotating shaft, two clamping heads are installed on the clamping plate and correspond to punched holes in the coal picker screen, and the coal picker screen is fixed through cooperation of the clamping heads and the punched holes. The clamping heads corresponding to the punched holes in the side plates are arranged, so that the screen of the coal separator is fixed, and meanwhile, the screen of the coal separator is stably fixed by arranging the limiting bolts; the clamping seat and the clamping plate are arranged to fix the coal separator screen, the telescopic cylinder and the supporting plate are further arranged to support the coal separator screen, and stable fixation of the coal separator screen is further guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and particularly relates to a fixture for welding a coal separator screen. Background Art

[0002] The coal separator screen includes two side plates and an arc-shaped screen located between the two side plates. In the prior art, the welding of the coal separator screen is generally carried out by manual welding. In order to improve the welding speed and quality, the company introduced a fully automatic welding robot to weld the coal separator screen. Specifically, during welding, it is necessary to first perform preliminary shaping on the coal separator screen through manual spot welding, and then fix the shaped coal separator screen. After fixing, the welding robot can be used for welding. However, since the original welding was completely manual, there was no special fixture for fixing the coal separator screen. Therefore, it is necessary to develop a fixture to cooperate with the welding robot. Content of the Utility Model

[0003] The utility model provides a fixture for welding a coal separator screen for the above problems.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A fixture for welding a coal separator screen includes two clamping seats. One of the clamping seats is fixedly installed on one side of the base, and the other clamping seat is slidably installed on the base. A rotating shaft is rotatably installed on the upper part of the clamping seat. A clamping plate is fixedly connected to the inner end of the rotating shaft. Two clamping heads are installed on the clamping plate. The clamping heads correspond to the punching holes on the coal separator screen. Through the cooperation of the clamping heads and the punching holes, the fixation of the coal separator screen is realized.

[0006] Further, the clamping head includes a fixed rod. A limiting ring is fixedly arranged on the fixed rod. A locking nut is threadedly connected to one end of the fixed rod close to the limiting ring. Through the cooperation of the locking nut and the limiting ring, the fixation of the fixed rod and the clamping plate is realized. A tapered chuck is slidably arranged at the other end of the fixed rod. A spring is arranged between the tapered chuck and the limiting ring. The spring is sleeved on the fixed rod. A limiting nut is threadedly connected to one end of the fixed rod far from the limiting ring for limiting the tapered chuck.

[0007] Still further, a plurality of groups of mounting holes are formed in the clamping plate to adapt to coal separator screens of different specifications. The clamping heads are arranged in the mounting holes.

[0008] Furthermore, the mounting holes are oblong holes.

[0009] Furthermore, a limit bolt is also threadedly connected to the clamping plate, and the stable fixation of the coal separator screen is achieved through the cooperation of the limit bolt and the clamping head.

[0010] Furthermore, a rotary motor is fixedly installed on the outer side of one of the clamping seats, and the output shaft of the rotary motor is fixedly connected to the adjacent rotating shaft.

[0011] Furthermore, a guide rod is fixedly installed on the base, and a lead screw is also rotatably installed on the base. The guide rod is slidably connected to the clamping seat, the lead screw is threadedly connected to the clamping seat, and a driving motor is fixedly installed at one end of the base. The output shaft of the driving motor is fixedly connected to one end of the lead screw.

[0012] Furthermore, a telescopic cylinder is fixedly installed on the upper surface of the base, and a support plate is fixedly arranged at the upper end of the telescopic cylinder.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] The present utility model realizes the fixation of the coal separator screen by setting a clamping head corresponding to the punching holes on the side plate, and at the same time realizes the stable fixation of the coal separator screen by setting a limit bolt;

[0015] In addition to setting the clamping seat and the clamping plate to fix the coal separator screen, the present utility model also sets a telescopic cylinder and a support plate to support the coal separator screen, further ensuring the stable fixation of the coal separator screen;

[0016] The mounting holes of the present utility model are set as oblong holes, which facilitates the installation of the clamping head;

[0017] The clamping head of the present utility model adopts a tapered chuck in cooperation with the punching hole, which can more conveniently realize the cooperative installation of the punching hole and the clamping head;

[0018] One of the clamping seats in the present utility model can slide on the base, and at the same time, multiple groups of mounting holes are also provided on the clamping plate, which can adapt to the welding of coal separator screens of different specifications. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the use state of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the clamping head of the present utility model;

[0022] In the figure, there are a clamping seat 1, a base 2, a rotating shaft 3, a clamping plate 4, a clamping head 5, a mounting hole 6, a limit bolt 7, a rotating motor 8, a guide rod 9, a lead screw 10, a driving motor 11, a telescopic cylinder 12, a support plate 13, a fixing rod 501, a limit ring 502, a locking nut 503, a tapered chuck 504, a spring 505, and a limit nut 506. Detailed implementation manners

[0023] To further elaborate on the technical solution of the present invention, the present invention will be further described below through embodiments.

[0024] As Figures 1 to 3 shown, a jig for welding a coal separator screen includes two clamping seats 1. One of the clamping seats 1 is fixedly installed on one side of the base 2, and the other clamping seat 1 is slidably installed on the base 2. A rotating shaft 3 is rotatably installed on the upper part of the clamping seat 1. A rotating motor 8 is fixedly installed outside one of the clamping seats 1, and the output shaft of the rotating motor 8 is fixedly connected to the adjacent rotating shaft 3. A clamping plate 4 is fixedly connected to the inner end of the rotating shaft 3. Two clamping heads 5 are installed on the clamping plate 4, and the clamping heads 5 correspond to the punching holes on the coal separator screen. Through the cooperation of the clamping heads 5 and the punching holes, the fixation of the coal separator screen is realized. A plurality of groups of mounting holes 6 are formed on the clamping plate 4 to adapt to coal separator screens of different specifications. The clamping heads 5 are arranged in the mounting holes 6, and the mounting holes 6 are oblong holes. A limit bolt 7 is also threadedly connected to the clamping plate 4. Through the cooperation of the limit bolt 7 and the clamping heads 5, the stable fixation of the coal separator screen is realized. A telescopic cylinder 12 is fixedly installed on the upper surface of the base 2, and a support plate 13 is fixedly arranged at the upper end of the telescopic cylinder 12.

[0025] The clamping head 5 includes a fixing rod 501. A limit ring 502 is fixedly arranged on the fixing rod 501. A locking nut 503 is threadedly connected to one end of the fixing rod 501 close to the limit ring 502. Through the cooperation of the locking nut 503 and the limit ring 502, the fixation of the fixing rod 501 and the clamping plate 4 is realized. A tapered chuck 504 is slidably arranged at the other end of the fixing rod 501. A spring 505 is arranged between the tapered chuck 504 and the limit ring 502. The spring 505 is sleeved on the fixing rod 501. A limit nut 506 is threadedly connected to one end of the fixing rod 501 far from the limit ring 502 for limiting the tapered chuck.

[0026] A guide rod 9 is fixedly installed on the base 2. A lead screw 10 is also rotatably installed on the base 2. The guide rod 9 is slidably connected to the clamping seat 1, and the lead screw 10 is threadedly connected to the clamping seat 1. A driving motor 11 is fixedly installed at one end of the base 2, and the output shaft of the driving motor 11 is fixedly connected to one end of the lead screw 10.

[0027] The foregoing has shown and described the main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0028] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamp for welding a coal preparation machine screen, characterized in that: The invention comprises two clamping seats (1), one of which is fixedly mounted on one side of a base (2), and the other clamping seat (1) is slidably mounted on the base (2). A rotating shaft (3) is rotatably mounted on the upper part of the clamping seat (1), a clamping plate (4) is fixedly connected to the inner end of the rotating shaft (3), and two clamping heads (5) are mounted on the clamping plate (4). The clamping heads (5) correspond to the punched holes on the coal preparation machine screen, and the coal preparation machine screen is fixed by the cooperation between the clamping heads (5) and the punched holes.

2. A coal preparation machine screen welding fixture according to claim 1, characterized in that: The chuck (5) comprises a fixing rod (501), on which a limiting ring (502) is fixedly arranged, and a locking nut (503) is threadedly connected to one end of the fixing rod (501) close to the limiting ring (502), and the fixing rod (501) and the clamping plate (4) are fixed by the cooperation of the locking nut (503) and the limiting ring (502), and a conical chuck (504) is slidably arranged on the other end of the fixing rod (501), and a spring (505) is arranged between the conical chuck (504) and the limiting ring (502), and the spring (505) is sleeved on the fixing rod (501), and a limiting nut (506) is threadedly connected to one end of the fixing rod (501) away from the limiting ring (502), so as to limit the conical chuck.

3. A coal preparation machine screen welding fixture according to claim 2, characterized in that: A plurality of groups of mounting holes (6) are provided on the clamping plate (4) to accommodate coal preparation machine screens of different specifications, and the clamping head (5) is arranged in the mounting hole (6).

4. A coal preparation machine screen welding fixture according to claim 3, characterized in that: The mounting hole (6) is an oblong hole.

5. A coal preparation machine screen welding fixture according to claim 2, characterized in that: A limiting bolt (7) is also threadedly connected to the clamping plate (4), and the stable fixation of the coal preparation machine screen is achieved through the cooperation between the limiting bolt (7) and the clamping head (5).

6. A coal preparation machine screen welding fixture according to claim 1, characterized in that: A rotating motor (8) is fixedly mounted on the outer side of one of the clamping seats (1), and the output shaft of the rotating motor (8) is fixedly connected to the adjacent rotating shaft (3).

7. A coal preparation machine screen welding fixture according to claim 1, characterized in that: A guide rod (9) is fixedly mounted on the base (2), a lead screw (10) is also rotatably mounted on the base (2), the guide rod (9) is slidably connected to the clamping seat (1), the lead screw (10) is threadedly connected to the clamping seat (1), a drive motor (11) is fixedly mounted on one end of the base (2), and an output shaft of the drive motor (11) is fixedly connected to one end of the lead screw (10).

8. A coal preparation machine screen welding fixture according to claim 1, characterized in that: A telescopic cylinder (12) is fixedly mounted on the upper surface of the base (2), and a support plate (13) is fixedly arranged on the upper end of the telescopic cylinder (12).

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