Fan shield rectification device

Abstract

The utility model discloses a fan shield rectification device which comprises a supporting plate which is supported above a bottom plate. A positioning hole is formed in the center of the supporting plate, and the fan shield is concentrically placed in the positioning hole; a clamping mechanism for the fan shield is further arranged below the supporting plate. An annular sliding rail concentric with the positioning hole is arranged on the upper side face of the supporting plate, and a scribing mechanism is arranged on the annular sliding rail. The scribing mechanism walks in two power modes, one of the two modes is selected, in the first mode, the annular sliding rail can rotate with the circle center of the annular sliding rail as the center, and the annular sliding rail drives the scribing mechanism to move; according to the second type, the annular sliding rail is fixed, and the scribing mechanism walks on the annular sliding rail; the scribing mechanism comprises a vertically-arranged needle rod, and two scribing needles are arranged on the needle rod. According to the utility model, manual scribing can be replaced, the problems of difficult positioning, large deviation and low efficiency of manual scribing are avoided, and the rectification effect of the motor fan shield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan guard repair, in particular to a fan guard repair device. Background Art

[0002] The original fan guard of the engine is too large. During the assembly of the generator set, the fan guard interferes with the frame of the unit, so the fan guard often needs to be modified. The modification process is to cut off the protruding part of the original fan guard, such as Figure 1 As shown in the figure, the state A is modified to the state B, and the installation holes are re-punched in the remaining part. The trouble is that the part next to the installation hole also needs to be cut off, but the position of the installation hole does not need to be marked. The workers measure and mark manually, and the error is too large, resulting in inconsistent height of the hood after the modification and inconsistent reserved punching positions. Utility Model Content

[0003] In order to solve the problems in the prior art, the utility model provides a fan guard rectification device to improve the rectification effect of the motor fan guard.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A fan guard rectification device comprises a support plate, wherein the support plate is supported above a bottom plate;

[0006] The center of the support plate is set as a positioning hole, and the fan guard is concentrically placed at the location of the positioning hole; a clamping mechanism for the fan guard is also provided under the support plate;

[0007] The upper side of the support plate is provided with an annular slide rail concentric with the positioning hole, and a marking mechanism is provided on the annular slide rail; there are two power forms for the movement of the marking mechanism, and one of the two forms is selected: the first is that the annular slide rail can rotate with its circle center as the center, and the annular slide rail drives the marking mechanism to move; the second is that the annular slide rail is stationary, and the marking mechanism moves on the annular slide rail;

[0008] The marking mechanism comprises a vertically arranged needle bar, on which two marking needles are arranged.

[0009] Preferably, three marking mechanisms are provided and are evenly distributed on the annular slide rail.

[0010] Preferably, the marking mechanism is equipped with one.

[0011] Preferably, the marking mechanism further comprises a marking control structure, and the marking control structure is used to control the contact and separation action between the marking needle and the fan shroud.

[0012] Preferably, the marking control structure comprises a mounting seat arranged on the annular slide rail, a rotary cylinder is arranged on the mounting seat, a rotary part of the rotary cylinder is vertically upward and connected to a horizontal fixed rod, and the other end of the fixed rod is fixedly connected to the needle rod;

[0013] During operation, the rotary part of the rotary cylinder rotates to make the marking needle contact with the fan guard; when marking is not needed, the rotary part reverses to make the marking needle separate from the surface of the fan guard.

[0014] Preferably, a reinforcement portion is provided between the fixing rod and the needle rod.

[0015] Preferably, a position adjustment structure is provided between the marking needle and the needle rod.

[0016] Preferably, the clamping mechanism comprises a positioning plate and two clamping blocks;

[0017] The positioning plate is located directly below the positioning hole, and the positioning plate provides a reference surface for the end surface of the fan guard; the positioning plate is fixed above the bottom plate, and the center of the positioning plate is collinear with the center of the positioning hole;

[0018] The clamping block is located between the positioning plate and the support plate. The two clamping blocks are symmetrically arranged with the center of the positioning plate as the midline. The clamping surfaces of the two clamping blocks are opposite, and the two clamping blocks are moved closer to or away from each other under the action of the clamping drive structure.

[0019] Preferably, the clamping drive structure is a transmission screw arranged on the bottom plate, the transmission screw passes between the positioning plate and the bottom plate, the transmission screw has two threaded sections with opposite rotation directions, and the two clamping blocks are respectively threadedly connected with the two threaded sections; at the same time, the upper end surface of the clamping block is a plane, and the upper end surface is in contact with the lower side surface of the support plate;

[0020] The transmission screw is also externally connected with an operating part for rotation.

[0021] Preferably, the clamping surface of the clamping block is a V-shaped structure.

[0022] Beneficial effects of the utility model:

[0023] 1. The utility model can replace manual marking, avoid the problems of difficult positioning, large deviation and low efficiency of manual marking, and improve the effect of motor fan guard rectification.

[0024] 2. The marking mechanism in the utility model can mark two lines at the same time, saving work time.

[0025] 3. The utility model also designs a marking control structure for controlling the contact and separation action between the marking needle and the fan guard, and automatically moves away from the fan guard at the installation hole position and no longer marks, effectively and accurately reserving the installation hole position and standardizing the reserved space for punching.

[0026] 4. The clamping mechanism of the utility model combines the positioning plate and the clamping block to achieve mechanical positioning and clamping of the fan guard, with accurate positioning and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the modification of the fan guard;

[0028] Figure 2 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the clamping mechanism in the first embodiment of the utility model;

[0030] Figure 4 This is a structural schematic diagram of the marking mechanism in the first embodiment of the present utility model;

[0031] Figure 5 It is a distribution diagram of the marking mechanism in the second embodiment of the present utility model.

[0032] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] Embodiment 1:

[0035] like Figures 2 to 4 As shown, this embodiment provides a fan guard rectification device, comprising a support plate 1, which is an annular structure. The support plate 1 is detachably supported and fixed on the bottom plate 2 by a column.

[0036] A positioning hole is formed at the center of the support plate 1 , and the fan guard 10 is placed concentrically at the position of the positioning hole; a clamping mechanism for the fan guard 20 is also provided below the support plate 1 .

[0037] In this embodiment, the clamping mechanism includes a positioning plate 3 and two clamping blocks 4 .

[0038] The positioning plate 3 is located directly below the positioning hole. The positioning plate 3 ensures a certain flatness and provides a reference surface for the end surface of the fan guard. The positioning plate 3 is fixed above the bottom plate 2, and the center of the positioning plate 3 is collinear with the center of the positioning hole. When working, the fan guard is placed on the positioning plate 3 from the positioning hole of the support plate.

[0039] The clamping block 4 is located between the positioning plate 3 and the support plate 1. The two clamping blocks 4 are symmetrically arranged with the center of the positioning plate 3 as the midline. The clamping surfaces of the two clamping blocks 4 are opposite, and the two clamping blocks 4 approach or move away from each other under the action of the clamping drive structure.

[0040] The clamping surface of the clamping block 4 is a V-shaped structure, which has a positioning effect on the fan guard. The axis of the fan guard after clamping is located on the center line of the support plate 1.

[0041] The clamping drive structure is a transmission screw 5, both ends of which are installed on the bottom plate 2 through bearing seats, and the transmission screw 5 passes between the positioning plate 3 and the bottom plate 2. The transmission screw 5 has two threaded sections with opposite rotation directions, and the two clamping blocks 4 are respectively threadedly connected with the two threaded sections. At the same time, the upper end surface of the clamping block 4 is a plane, and the upper end surface contacts and cooperates with the lower side surface of the support plate 1, so that the lower side surface of the support plate 1 can form a guiding effect on the clamping block 4, so that the clamping block 4 can only move linearly, and will not rotate with the transmission screw 5.

[0042] The driving screw rod 5 is also externally connected with a handle 6 for rotation. Rotating the handle 6 drives the driving screw rod 5 to rotate, thereby driving the two clamping blocks 4 to move closer or farther away. When they move closer, the fan guard is clamped, and vice versa, they are released.

[0043] The clamping mechanism of the utility model realizes mechanical positioning and clamping of the fan guard by combining the positioning plate and the clamping block, and the positioning is accurate and the operation is convenient.

[0044] An annular slide rail 7 concentric with the positioning hole is provided on the upper side of the support plate 1, and the annular slide rail 7 can rotate around its center; a marking mechanism 10 is provided on the annular slide rail 7, and the annular slide rail 7 drives the marking mechanism 10 to move along a circular trajectory.

[0045] In the present embodiment, a marking mechanism 10 is provided, and is also provided with a marking control structure, which is used to control the contact and distance action between the marking needle and the fan guard, and automatically moves away from the fan guard at the installation hole position and no longer marks, so that the installation hole position is effectively and accurately reserved, and the reserved space for punching is standardized.

[0046] The marking mechanism 10 comprises a vertically arranged needle bar 8, on which two marking needles are arranged, namely a first marking needle 81 and a second marking needle 82, wherein the first marking needle 81 is located above the second marking needle 82. The two marking needles work simultaneously and mark two lines at a time.

[0047] A position adjustment structure is provided between the marking needle and the needle rod 8, which can realize the function of adjusting the position of the marking needle on the needle rod up and down. This structure can adopt a sleeve connection and screw locking method, which is the existing technology and will not be repeated here.

[0048] The marking control structure includes a mounting base 91 fixedly arranged on the annular slide rail 7, and a rotary cylinder 92 is provided on the mounting base 91 (the rotary cylinder is preferably a MISUMI or AIRTAC rotary cylinder). The rotating part of the rotary cylinder 92 is vertically upward and connected to a horizontal fixed rod 93, and the other end of the fixed rod 93 is suspended and fixedly connected to the upper end of the needle rod 8.

[0049] During operation, the rotary part of the rotary cylinder 92 rotates to make the first marking needle 81 and the second marking needle 82 contact the fan guard; when marking is not needed, the rotary part reverses to make the first marking needle 81 and the second marking needle 82 separate from the surface of the fan guard.

[0050] Since only one marking mechanism is provided in this embodiment, a marking control structure is designed to control the contact and separation of the marking needle and the fan shroud, so as to make up for the shortcoming that the circular track of the circular slide rail intelligent operation cannot drive the marking needle away from the fan shroud.

[0051] A reinforcement part 94 is provided between the fixing rod 93 and the needle rod 9. Since the marking needle receives the reaction force from the fan guard during marking, the needle rod 8 is in a cantilever state and is unstable, which may cause the marking needle located below to be away from the fan guard and unable to mark. Therefore, the reinforcement part is used to enhance the stability of the needle rod, and the reinforcement part is not limited to using structures such as reinforcing ribs and reinforcing rods.

[0052] The working principle of the utility model is as follows:

[0053] When in use, the fan guard 20 is placed on the positioning plate from the installation position in the middle of the support plate 1, and then the transmission screw 5 is turned to make the clamping block 4 clamp the fan guard 20, and finally the annular slide rail 7 and the rotary cylinder 92 are started to mark the fan guard 20. During the marking process, the marking control structure is used to control the contact and separation of the marking needle and the fan guard to draw three evenly distributed lines. Since the first marking needle 81 and the second marking needle 82 act synchronously, the lines drawn are two lines, one above and one below, and both lines are three-segment lines. The upper line needs to be cut along the line, and the line segment does not affect the whole cutting. When cutting the positions on both sides of the installation hole, it is sufficient to cut vertically along the direction of the end point of the lower line segment.

[0054] Embodiment 1:

[0055] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that three marking mechanisms 10 are provided and evenly distributed on the annular slide rail 7 .

[0056] The fan guard has three mounting holes, and there is no need to mark the mounting holes, that is, there will be three gaps when marking. A marking mechanism requires the slide rail to travel a full circle and the cylinder to rotate three times to complete the drawing of three lines. Therefore, three marking mechanisms are directly set up to work simultaneously to reduce the working hours of a single piece.

[0057] Embodiment three:

[0058] The difference between this embodiment and the first embodiment is that the running power form of the marking mechanism 10 is different. In this embodiment, the annular slide rail 7 is stationary, and the marking mechanism runs on the annular slide rail 7.

[0059] The utility model can replace manual marking, avoids the problems of difficult positioning, large deviation and low efficiency of manual marking, and improves the effect of rectification of the motor fan guard cover.

[0060] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0061] If the words "first", "second" and so on are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A fan guard rectification device, characterized in that: It includes a support plate, which is supported above the bottom plate; The center of the support plate is set as a positioning hole, and the fan guard is concentrically placed at the location of the positioning hole; a clamping mechanism for the fan guard is also provided under the support plate; The upper side of the support plate is provided with an annular slide rail concentric with the positioning hole, and a marking mechanism is provided on the annular slide rail; there are two power forms for the movement of the marking mechanism, and one of the two forms is selected: the first is that the annular slide rail can rotate with its circle center as the center, and the annular slide rail drives the marking mechanism to move; the second is that the annular slide rail is stationary, and the marking mechanism moves on the annular slide rail; The marking mechanism comprises a vertically arranged needle bar, on which two marking needles are arranged.

2. The fan guard rectification device according to claim 1, characterized in that: The marking mechanisms are provided with three and are evenly distributed on the annular slide rail.

3. The fan guard rectification device according to claim 2, characterized in that: The marking mechanism is provided with one.

4. The fan guard rectification device according to claim 2 or 3, characterized in that: The marking mechanism also includes a marking control structure, which is used to control the contact and separation action between the marking needle and the fan guard.

5. The fan guard rectification device according to claim 4, characterized in that: The marking control structure comprises a mounting seat arranged on the annular slide rail, a rotary cylinder is arranged on the mounting seat, a rotary part of the rotary cylinder is vertically upward and connected to a horizontal fixed rod, and the other end of the fixed rod is fixedly connected to the needle rod; During operation, the rotary part of the rotary cylinder rotates to make the marking needle contact with the fan guard; when marking is not needed, the rotary part reverses to make the marking needle separate from the surface of the fan guard.

6. The fan guard rectification device according to claim 5, characterized in that: A reinforcement portion is provided between the fixing rod and the needle rod.

7. The fan guard rectification device according to claim 1, characterized in that: A position adjustment structure is provided between the marking needle and the needle rod.

8. The fan guard rectification device according to claim 1, characterized in that: The clamping mechanism comprises a positioning plate and two clamping blocks; The positioning plate is located directly below the positioning hole, and the positioning plate provides a reference surface for the end surface of the fan guard; the positioning plate is fixed above the bottom plate, and the center of the positioning plate is collinear with the center of the positioning hole; The clamping block is located between the positioning plate and the support plate. The two clamping blocks are symmetrically arranged with the center of the positioning plate as the midline. The clamping surfaces of the two clamping blocks are opposite, and the two clamping blocks are moved closer to or away from each other under the action of the clamping drive structure.

9. The fan guard rectification device according to claim 8, characterized in that: The clamping drive structure is a transmission screw arranged on the bottom plate, the transmission screw passes between the positioning plate and the bottom plate, and has two threaded sections with opposite rotation directions, and the two clamping blocks are respectively threadedly connected with the two threaded sections; at the same time, the upper end surface of the clamping block is a plane, and the upper end surface is in contact with the lower side surface of the support plate; The transmission screw is also externally connected with an operating part for rotation.

10. The fan guard rectification device according to claim 8, characterized in that: The clamping surface of the clamping block is a V-shaped structure.

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