Pressure screen rotor cylinder clamping tool

Abstract

The utility model relates to the technical field of pressurized screen rotor cylinder manufacturing and machining, in particular to a pressurized screen rotor cylinder clamping tool which comprises a base, a bearing disc, a balance weight guide cylinder and a positioning and tightening mechanism, the balance weight guide cylinder is vertically arranged on the base, a balance weight block is arranged in the balance weight guide cylinder, the bearing disc is arranged on the balance weight guide cylinder in a sleeved mode and connected with the balance weight block through a plurality of connecting ropes, and the positioning and tightening mechanism is arranged on the bearing disc. At least two connecting rod matching holes are evenly formed in the bearing disc around the balance weight guide cylinder in the circumferential direction, a movable connecting rod is arranged in each connecting rod matching hole in a penetrating mode, one end of each movable connecting rod is hinged to the base, the other end of each movable connecting rod is provided with a jacking part, kidney-shaped holes are formed in the movable connecting rods in the rod length direction, connecting pieces are arranged in the kidney-shaped holes, and the connecting pieces are connected with the bearing disc. The bearing disc moves up and down to drive the movable connecting rods to turn over, so that the pressurized screen rotor cylinder is positioned and tightly supported, and the pressurized screen rotor cylinder is conveniently machined.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure screen rotor cylinder manufacturing and processing technical field, concretely relates to pressure screen rotor cylinder clamping tool. BACKGROUND

[0002] The pressure screen rotor cylinder is a cylindrical metal part, which needs to have a smooth surface because it directly contacts with paper pulp, so the outer cylindrical surface needs to be polished. Generally, the polishing is performed by horizontal rotation using a sand belt, and a uniformly distributed screw chuck is used for clamping. At this time, the chucks at different positions need to be tightened respectively, which is inconvenient to operate, and the clamping position of the rotor is eccentric.

[0003] In order to facilitate clamping of the pressure screen rotor cylinder or other similar cylindrical parts and improve processing efficiency, the utility model provides a pressure screen rotor cylinder clamping tool. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of providing a pressure screen rotor cylinder clamping tool, which facilitates quick positioning and clamping of similar cylindrical parts such as the pressure screen rotor cylinder.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a pressure screen rotor cylinder clamping tool includes a base, a bearing disc, a counterweight guide cylinder, and a positioning and tensioning mechanism. The counterweight guide cylinder is erected on the base, and a counterweight block is arranged in the counterweight guide cylinder. A connecting rope is arranged on the counterweight block, each connecting rope passes through the top of the counterweight guide cylinder and is connected to the bearing disc. A guide hole is arranged on the bearing disc for the counterweight guide cylinder to pass through. The bearing disc is movably sleeved outside the counterweight guide cylinder and moves up and down along the counterweight guide cylinder and drives the counterweight block to move vertically along the counterweight guide cylinder. At least two connecting rod cooperation holes are evenly distributed around the guide hole on the bearing disc.

[0006] The positioning and tensioning mechanism includes at least two movable connecting rods. Each movable connecting rod passes through each connecting rod cooperation hole, and one end of each movable connecting rod is hingedly connected to the base. A waist hole is arranged on the movable connecting rod along the length direction. A connecting piece is arranged in the waist hole. The connecting piece is connected to the bearing disc, and the bearing disc drives each movable connecting rod to flip around the connection with the base. The other end of each movable connecting rod is provided with a supporting part.

[0007] After the part is placed on the bearing disc, the bearing disc is driven to move down, the bearing disc drives each movable connecting rod to flip, the supporting part of each movable connecting rod contacts with the inner wall of the part, each movable connecting rod positions and tensions the part, and after the part is removed, the bearing disc moves up under the action of the counterweight block, simultaneously driving each movable connecting rod to flip and the supporting part of each movable connecting rod to move towards the middle.

[0008] As a preferred embodiment, the weight of the counterweight is greater than the sum of the weight of the carrier disc and the weight of each movable connecting rod, and the carrier disc is lifted by the counterweight when the carrier disc is empty. The counterweight is relatively heavy so that the carrier disc and each movable connecting rod can be reset by the counterweight when the part is separated from the carrier disc.

[0009] As a preferred embodiment, the center of the upper end surface of the counterweight is provided with a connecting position for connecting the connecting rope, and the top end of the counterweight guide cylinder is uniformly provided with at least three positioning guide ports in the circumferential direction, and each connecting rope passes through each positioning guide port. The top end of the counterweight guide cylinder is provided with a positioning guide port, which can prevent the position of the connecting rope from deviating and affecting the clamping effect of the tool on the part.

[0010] As a preferred embodiment, the connecting rod matching hole and the movable connecting rod are both four. The connecting rod matching hole and the movable connecting rod are both provided with four, which is beneficial to realize the centering and positioning of the part.

[0011] Compared with the prior art, the automatic positioning and tensioning tool has the beneficial effects that: the automatic positioning and tensioning tool utilizes the gravity of the part or external pressure to realize automatic positioning and tensioning of the part, and then connects and matches the part with the rotating workbench to realize polishing of the outer circular surface of the workpiece, which is convenient to operate and has a simple clamping process without a complicated fixing process, thereby effectively improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0013] Figure 1 is a schematic view of the external structure of the tool;

[0014] Figure 2 is a schematic view of the tool from above;

[0015] Figure 3 is Figure 2 is a schematic view of the cross section along A-A;

[0016] Figure 4 is a schematic view of the state of the tool when the part is not in contact with the tool during use;

[0017] Figure 5 is a schematic view of the state of the tool when the part is just in contact with the tool during use;

[0018] Figure 6 is a schematic view of the state of the tool when the part is positioned and tensioned by the tool during use;

[0019] In the figure: 1, base, 2, bearing disc, 3, counterweight guide cylinder, 4, counterweight, 5, connecting rope, 6, movable connecting rod, 7, part. DETAILED DESCRIPTION

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

[0021] Please refer to Figures 1-6 The embodiment provides a pressure screen rotor cylinder clamping tool, which is used for positioning, clamping and processing of a pressure screen rotor cylinder or other similar cylindrical parts. The tool comprises a base 1, a bearing disc 2, a counterweight guide cylinder 3 and a positioning and tightening mechanism. The counterweight guide cylinder 3 is vertically arranged on the base 1. A counterweight 4 is arranged in the counterweight guide cylinder 3. A connecting rope 5 is arranged on the counterweight 4. Each connecting rope 5 passes through the top of the counterweight guide cylinder 3 and is connected with the bearing disc 2. A guide hole through which the counterweight guide cylinder 3 passes is arranged on the bearing disc 2. The bearing disc 2 is movably sleeved outside the counterweight guide cylinder 3. The bearing disc 2 moves up and down along the counterweight guide cylinder 3 and drives the counterweight 4 to move vertically along the counterweight guide cylinder 3 through the connecting rope 5. At least two connecting rod cooperation holes are uniformly and circumferentially arranged on the bearing disc 2 around the guide hole.

[0022] The positioning and tightening mechanism comprises at least two movable connecting rods 6. Each movable connecting rod 6 passes through each connecting rod cooperation hole and one end of each movable connecting rod 6 is hinged to the base 1. A waist hole is arranged on the movable connecting rod 6 along the length direction of the rod. A connecting piece is arranged in the waist hole. The connecting piece is connected with the bearing disc 2. The bearing disc 2 drives each movable connecting rod 6 to turn around the hinged part of the base 1. The other end of each movable connecting rod 6 is provided with a supporting part.

[0023] Specifically, the counterweight guide cylinder 3 is vertically arranged on the base 1. A counterweight cavity is vertically arranged in the counterweight guide cylinder 3. The counterweight 4 is arranged in the counterweight cavity. Under the limitation of the cavity wall of the counterweight cavity, the counterweight 4 can only move vertically. The connecting rope 5 is arranged on the counterweight 4 and passes through the top of the counterweight guide cylinder 3. The end of the connecting rope 5 in the counterweight cavity is connected with the counterweight 4. The end of the connecting rope 5 outside the counterweight cavity is connected with the bearing disc 2.

[0024] The bearing disc 2 is provided with a guide hole, the bearing disc 2 is sleeved on the outside of the counterweight guide cylinder 3 through the guide hole, that is, the counterweight guide cylinder 3 passes through the guide cylinder, the bearing disc 2 can move up and down along the configuration guide cylinder, and due to the fact that each connecting rope 5 passes around the top of the counterweight guide cylinder 3 and is connected with the counterweight block 4 and the bearing disc 2, the bearing disc 2 can drive the counterweight block 4 to lift when moving downwards, and the counterweight block 4 moves downwards under the action of its own gravity when the bearing disc 2 moves upwards.

[0025] The bearing disc 2 is provided with at least two link cooperation holes which are uniformly distributed along the circumference and take the guide hole as the center, the link cooperation holes are used for cooperating with the movable links 6 of the positioning and clamping mechanism to realize the positioning and clamping of the part 7, the positioning and clamping mechanism comprises at least two movable links 6, the rod body of the movable link 6 is provided with a waist hole, the waist hole is arranged along the length direction of the rod body of the movable link 6, and a connecting piece is arranged in the waist hole, the connecting piece can move along the waist hole, and the connecting piece is a connecting rod, a connecting block or the like which is movably arranged in the waist hole. Each link cooperation hole is provided with a movable link 6, the connecting piece on the movable link 6 is connected with the bearing disc 2, the movable link 6 can be flipped and moved relative to the connecting piece, one end of the movable link 6 which is located below the bearing disc 2 is hinged to the base 1, and the other end of the movable link 6 which is located above the bearing disc 2 is provided with a jacking part.

[0026] In the process of automatically positioning and clamping the pressure screen rotor cylinder 7 by using the tooling of the embodiment, when the part 7 is not placed on the bearing disc 2 and when the part 7 is just placed on the bearing disc 2 and is not loosened, as shown in Figs. 7 and 8, the bearing disc 2 is in a lifting state under the action of the counterweight block 4, the spacing between the bearing disc 2 and the upper end surface of the base 1 is height 1, and each movable link 6 has an initial angle with the upper end surface of the base 1. Figure 4 and Figure 5 After the part 7 is loosened, the bearing disc 2 is lowered and drives the counterweight block 4 to lift under the gravity of the part 7 or the action of an external pressure, and the bearing disc 2 also drives each movable link 6 to flip at the same time, and finally the jacking part of each movable link 6 contacts the inner wall of the part 7, since each link cooperation hole on the bearing disc 2 is uniformly distributed along the circumference around the guide hole, each movable link 6 is also uniformly distributed along the circumference around the guide hole, each movable link 6 positions and clamps the workpiece while clamping the part 7, when the part 7 is positioned and clamped, the spacing between the bearing disc 2 and the upper end surface of the base 1 is height 2, height 2 is less than height 1, and the angle between each movable link 6 and the upper end surface of the base 1 is a clamping angle, the clamping angle is less than the initial angle.

[0027] As a further embodiment, the weight of the counterweight 4 is greater than the sum of the weight of the carrier disc 2 and each movable connecting rod 6, and the carrier disc 2 is lifted by the counterweight 4 when the carrier disc 2 is empty. Specifically, because the weight of the counterweight 4 is greater than the sum of the weight of the carrier disc 2 and each movable connecting rod 6, when the part 7 is separated from the carrier disc 2, the counterweight 4 can lift the carrier disc 2, thereby turning each movable connecting rod 6 and loosening the positioning and clamping of the part 7, and finally the tooling can be reset to facilitate positioning and clamping of the next part 7 to be machined.

[0028] In order to prevent the connecting ropes 5 from being misaligned to affect the use of the workpiece, in some embodiments, the center of the upper end surface of the counterweight 4 is provided with a connecting position for connecting the connecting ropes 5, and the top end of the counterweight guide cylinder 3 is uniformly provided with at least three positioning guide openings in the circumferential direction, and each connecting rope 5 passes through each positioning guide opening.

[0029] Specifically, the connecting ropes 5 are arranged by passing through the positioning guide openings, which can prevent the counterweight 4 and the carrier disc 2 from lifting and causing the connecting ropes 5 to be misaligned, and the top end of the counterweight guide cylinder 3 is uniformly provided with at least three positioning guide openings in the circumferential direction, and the plurality of connecting ropes 5 are connected at the center of the upper end surface of the counterweight 4, and the plurality of connecting ropes 5 are in communication in the circumferential direction, thereby always maintaining the state of the carrier disc 2 during lifting of the carrier disc 2.

[0030] In order to provide positioning and clamping effects on the part 7, as a preferred embodiment, the connecting rod cooperation holes and the movable connecting rods 6 are both four. Specifically, the connecting rod cooperation holes are four and are uniformly distributed in the circumferential direction around the counterweight guide cylinder 3, each connecting rod cooperation hole is provided with a movable connecting rod 6, and each movable connecting rod 6 is also uniformly distributed in the circumferential direction around the counterweight guide cylinder 3, and each movable connecting rod 6 cooperates to achieve automatic centering, positioning, and clamping of the part 7.

[0031] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent substitutions or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pressure screen rotor cartridge clamping fixture, characterized by: The device comprises a base (1), a bearing disc (2), a counterweight guide cylinder (3) and a positioning and bracing mechanism. The counterweight guide cylinder (3) is erected on the base (1), and the counterweight guide cylinder (3) is provided with a counterweight block (4). The counterweight block (4) is provided with connecting ropes (5). Each connecting rope (5) passes over the top of the counterweight guide cylinder (3) and is connected with the bearing disc (2). The bearing disc (2) is provided with a guide hole through which the counterweight guide cylinder passes. The bearing disc (2) is movably sleeved outside the counterweight guide cylinder (3). The bearing disc (2) moves up and down along the counterweight guide cylinder (3) and drives the counterweight block (4) to move vertically along the counterweight guide cylinder (3) through the connecting ropes (5). The bearing disc (2) is provided with at least two connecting rod matching holes which are evenly distributed around the guide hole. The positioning and bracing mechanism comprises at least two movable connecting rods (6). Each movable connecting rod (6) passes through each connecting rod matching hole. One end of each movable connecting rod (6) is hingedly connected with the base (1). The movable connecting rod (6) is provided with a waist hole along the length direction of the rod. The waist hole is provided with a connecting piece. The connecting piece is connected with the bearing disc (2). The bearing disc (2) drives each movable connecting rod (6) to turn around the connection with the base (1). The other end of each movable connecting rod (6) is provided with a bracing part.

2. The pressure screen rotor cartridge clamping fixture of claim 1, wherein: The weight of the counterweight block (4) is greater than the sum of the weights of the bearing disc (2) and each movable connecting rod (6). When the bearing disc (2) is empty, the bearing disc (2) is lifted by the counterweight block (4).

3. The pressure screen rotor cartridge clamping fixture of claim 2, wherein: The center of the upper end surface of the counterweight block (4) is provided with a connecting position for connecting the connecting ropes (5). The top end of the counterweight guide cylinder (3) is evenly provided with at least three positioning guide holes in the circumferential direction. Each connecting rope (5) passes through each positioning guide hole.

4. The pressure screen rotor cartridge clamping fixture of claim 2, wherein: The connecting rod matching hole and the movable connecting rod (6) are both four.

Images