Metal product machining clamp

Abstract

The utility model relates to the technical field of metal processing, and discloses a metal product processing clamp which comprises a base and a movable seat, the base and the movable seat are respectively connected with a supporting column, a brake is arranged in each supporting column, and a truss and a supporting assembly are installed on the inner side face of each supporting column. When the control shaft rotates, the three supporting rollers rotate to be opened and make contact with the inner wall of the metal piece, the metal piece is supported from the interior, machining of the outer surface of the metal piece is facilitated, on the other hand, the supporting assembly can support the metal piece from the interior, and machining of the metal piece is facilitated. And deformation of the metal piece during outer surface machining is prevented. In addition, through different overturning angles of the three supporting rollers, supporting operation can be carried out on cylindrical metal pieces with different inner diameters, the distance between the two supporting columns can be adjusted through the movable base, and supporting can be carried out on metal pieces with different lengths. And the practicability of the embodiment is improved.

Description

Technical Field

[0001] The utility model relates to the field of metal processing, in particular to a metal product processing fixture. Background Art

[0002] The processing of metal products generally refers to the process of manufacturing various metal products through cutting, grinding, welding and assembly. In order to facilitate processing, it is generally necessary to use a clamp to fix the metal product or metal material. Since the shapes and sizes of metal products are different, the types of clamps are also different.

[0003] For example, when processing the outer surface of a cylindrical metal part, the prior art generally uses a clamp to clamp the metal part from the outside. At that time, there is no way to directly process the part where the clamp contacts the metal part, and the process can only be done in multiple times. In addition, if the outer surface of a thin-walled cylindrical metal part is processed, the processing equipment contacts the metal part, which can easily cause the metal part to deform. Based on this, the applicant proposes a metal product processing clamp. Utility Model Content

[0004] In order to solve the technical problems of machining deformation and difficult clamping of thin-walled cylindrical metal parts, the utility model provides a metal product machining fixture.

[0005] The utility model is implemented by the following technical solution: a metal product processing fixture, comprising a base, on which is provided:

[0006] A movable seat, the movable seat being slidably mounted on the base;

[0007] A support column, wherein two support columns are provided, one of which is fixedly mounted on the base, and the other is mounted on the movable seat;

[0008] A truss, wherein the truss is fixedly connected to one side of the support column;

[0009] A support assembly, the support assembly is arranged in the truss, the support assembly comprises a control shaft and a support roller, the control shaft is used to control the rotation of the support roller, and one end of the control shaft passes through the support column, and the support roller is used to support the metal product;

[0010] A brake is arranged inside the support column.

[0011] Through the above technical solution, the support rollers in the support assembly are driven to rotate and open by the control shaft, so as to support and fix the inside of the metal cylinder, which is convenient for processing the outer surface of the metal part. During this process, the brake can lock the fixed shaft to ensure the support stability. On the other hand, the support assembly can support the metal part from the inside of the metal part to prevent the metal part from being deformed when processing the outer surface of the metal part.

[0012] As a further improvement of the above solution, the support assembly further includes:

[0013] A fixing frame, the fixing frame is fixedly connected to the truss, a bearing seat is arranged on the fixing frame, and the control shaft is rotatably connected to the fixing frame;

[0014] A rotating shaft, the rotating shaft is rotatably mounted in the fixing frame, and three rotating shafts are provided, and the three rotating shafts are distributed in an equilateral triangle;

[0015] A rotating frame is fixedly connected to the rotating shaft, and the supporting roller is rotatably mounted on the rotating frame.

[0016] As a further improvement of the above scheme, the support assembly also includes pulleys, and the pulleys are grouped into four. The four pulleys are connected by belts, three of which are fixedly connected to the rotating shaft, and the other pulley is fixedly connected to the control shaft.

[0017] Through the above technical solution, when the control shaft rotates, it drives one of the pulleys to rotate, and the pulley drives the other three pulleys to rotate through the belt, and the pulleys, the rotating frame and the support rollers rotate. The support rollers are opened to support and fix the metal parts, which is convenient for processing the outer surface of the metal parts. On the other hand, the support assembly supports the metal parts from the inside. It can also prevent the deformation of the metal parts caused by processing the outer surface of the metal parts.

[0018] As a further improvement of the above solution, the control shaft and the support column are rotationally connected, and one end of the control shaft extending out of the support column is connected to a hand wheel.

[0019] As a further improvement of the above solution, a cavity is provided in the support column, and the brake is arranged in the cavity, and the brake comprises:

[0020] a brake disc, the brake disc being fixedly connected to the control shaft;

[0021] A pawl, the pawl is rotatably arranged on one side of the brake disc, and a control plate is fixedly connected to one side of the pawl, and one end of the control plate extends out of a support column;

[0022] A spring, one end of which is connected to the pawl, and the other end of which is connected to the inner wall of the inner cavity of the support column.

[0023] Through the above technical solution, the pawl is inserted into the gap of the brake disc under the action of the spring, so that the brake disc can only rotate clockwise, and is blocked by the pawl when rotating counterclockwise. When the control plate is turned to separate the pawl and the brake disc, the brake disc including the control shaft can rotate counterclockwise.

[0024] As a further improvement of the above solution, the control shaft is rotationally connected to the truss via a plane bearing.

[0025] As a further improvement of the above scheme, a limiting slide groove is provided on the base, and the movable seat is slidably installed in the limiting slide groove. At the same time, a threaded shaft is arranged in the limiting slide groove, one end of the threaded shaft is connected to a motor, and the threaded shaft runs through the movable seat as a whole.

[0026] Through the above technical solution, the cooperation between the motor and the threaded shaft drives the moving seat to move, thereby driving one of the trusses and the supporting assembly to move.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. When the control shaft rotates, the three rotating frames of the utility model rotate and open, driving the support rollers to contact the inner wall of the metal part, supporting the metal part from the inside, making it convenient to process the outer surface of the metal part. On the other hand, the support rollers support the metal part from the inside to prevent the metal part from being deformed when processing the outer surface.

[0029] 2. The utility model can support cylindrical metal parts with different inner diameters by turning the three support rollers at different angles, and the distance between the two support columns can be adjusted by the movable seat, so that metal parts with different lengths can be supported, which increases the practicality of this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model in use state;

[0031] Figure 2 This is a schematic diagram of the connection relationship between the mobile seat and the support column of the utility model;

[0032] Figure 3 This is an exploded view of the support component part of the utility model;

[0033] Figure 4 This is a schematic diagram of the connection relationship between the truss and the front fixing frame of the utility model;

[0034] Figure 5 This is a schematic diagram of the working state of the support assembly of the utility model;

[0035] Figure 6 This is a schematic diagram of the internal brake structure of the support column of the utility model.

[0036] Explanation of main symbols: 1. Base; 2. Threaded shaft; 3. Moving seat; 4. Support column; 5. Truss; 6. Support assembly; 61. Fixed frame; 62. Control shaft; 63. Rotating shaft; 64. Pulley; 65. Rotating frame; 66. Support roller; 7. Brake; 71. Brake disc; 72. Pawl; 73. Control panel; 74. Spring. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0038] Please combine Figure 1 - Figure 6 A metal product processing fixture of this embodiment includes a base 1. First, a limited sliding groove is provided on the base 1. A moving seat 3 is clamped in the limited sliding groove, and the moving seat 3 can move along the direction of the limited sliding groove. In order to control the movement of the moving seat 3, a threaded shaft 2 is rotatably installed in the base 1, one end of the threaded shaft 2 is connected to a motor, and the threaded shaft 2 passes through the moving seat 3 as a whole, and the moving seat 3 and the threaded shaft 2 are threadedly connected. Therefore, through the cooperation of the motor and the threaded shaft 2, the moving seat 3 can be driven to move along the axial direction of the threaded shaft 2.

[0039] A support column 4 is fixedly connected to each of the base 1 and the movable base 3. A truss 5 is fixedly connected to the inner side of the two support columns 4. When in use, the truss 5 will extend into the inside of the cylindrical metal part. A support assembly 6 is arranged on the truss 5, and the support assembly 6 is used to support and fix the metal part from the inside of the cylindrical metal part.

[0040] Specifically, first, the support assembly 6 includes a fixing frame 61. In actual use, a hole is opened on the fixing frame 61, and the truss 5 will pass through the fixing frame 61, and then the truss 5 and the fixing frame 61 are fixed by welding. In addition, the support assembly 6 also includes a control shaft 62. One end of the control shaft 62 is rotatably connected to the truss 5 through a bearing, and the middle passes through the fixing frame 61 and the support column 4, and the other end extends out of the support column 4. The fixing frame 61 and the support column 4 are both provided with bearing seats, and the control shaft 62 is also rotatably connected to the fixing frame 61 and the support column 4 through a bearing.

[0041] In addition, a rotating shaft 63 and a belt pulley 64 are rotatably connected in the fixed frame 61. There are three rotating shafts 63, which are arranged in an equilateral triangle. There are four belt pulleys 64, three of which are fixedly mounted on the rotating shaft 63, and another belt pulley 64 is fixedly connected to the control shaft 62. The four belt pulleys 64 are connected by belts.

[0042] A rotating frame 65 is also fixedly connected to the rotating shaft 63 . The rotating frames 65 are respectively located on both sides of the pulley 64 so as not to affect the rotation of the pulley 64 . Meanwhile, a supporting roller 66 is also rotatably connected to the other end of the rotating frame 65 .

[0043] In summary, when the control shaft 62 rotates, it drives one of the pulleys 64 to rotate, and then through the cooperation of the belt, the four pulleys 64 rotate. The pulley 64 will drive the rotating shaft 63 to rotate, and the rotating shaft 63 will drive the rotating frame 65 to rotate. Figure 4 If the rotating frame 65 rotates clockwise around the rotating shaft 63 at this time, the rotating frame 65 opens, driving the supporting rollers 66 to contact the inner wall of the cylindrical metal part. The three supporting rollers 66 contact the inner wall of the metal part and support the metal part from the inside of the cylindrical metal part. Then it is convenient to process the outer surface of the metal part.

[0044] As described above, the support roller 66 can be opened by rotating the control shaft 62 to support the metal part, and then the surface of the metal part can be processed. In order to prevent the support roller 66 and the metal part from being out of contact during the processing, resulting in interruption of the processing or even an accident, a brake 7 is also provided. After the support roller 66 and the metal part are in contact, the brake 7 can be used to lock the rotating shaft to prevent it from rotating in the opposite direction.

[0045] Specifically, a cavity (not marked in the figure) is opened inside the support column 4, and the brake 7 is arranged in the cavity. Specifically, the brake 7 includes a brake disc 71 and a pawl 72. The brake disc 71 is fixedly sleeved on the rotating shaft, and a ratchet is provided on the side of the brake disc 71. The pawl 72 is rotatably installed in the cavity and is located on one side of the brake disc 71. In addition, a spring 74 is fixedly connected to the pawl 72, and the other end of the spring 74 is connected to the inner wall of the support column 4. Under the action of the spring 74, one end of the pawl 72 is inserted between the ratchet teeth of the brake disc 71, so that the brake disc 71 can only rotate clockwise and cannot rotate counterclockwise (refer to Figure 6 ).

[0046] On the contrary, in order for the brake disc 71 (control shaft 62) to rotate counterclockwise, a control plate 73 is fixedly connected to the pawl 72, and one end of the control plate 73 extends out of the support column 4. The pawl 72 can be manually rotated through the control plate 73, so that the spring 74 is compressed and the pawl 72 moves away from the brake disc 71. At this time, the brake disc 71 and the control shaft 62 can rotate counterclockwise.

[0047] The implementation process and principle of a metal product processing fixture in the embodiment of the present application are as follows:

[0048] (a); Because the above two support frames are fixedly connected to the base 1 and the movable base 3 respectively, when in use, the cylindrical metal piece to be processed is firstly brought close to the support column 4 fixed on the base 1, and the metal piece is sleeved on the truss 5 at the same time.

[0049] (ii) The control shaft 62 is manually operated by the hand wheel to rotate, and the control shaft 62 drives the pulley 64 to rotate. Through the cooperation of the belt, the four pulleys 64 rotate together. The rotating shaft 63 and the pulley 64 rotate together. At the same time, when the rotating shaft 63 rotates, it also drives the rotating frame 65 to rotate together. The rotating frame 65 rotates and opens, driving the support rollers 66 to contact the inner wall of the cylindrical metal part. The three support rollers 66 contact the inner wall of the metal part and support the metal part from the inside of the cylindrical metal part.

[0050] First, the three rotating shafts 63 and three pulleys 64 installed on the fixed frame 61 are arranged in an equilateral triangle, so that the three support rollers 66 can fit the inside of the cylindrical metal part. And the control shaft 62 and the metal part are coaxial. The support rollers 66 support the metal part from the inside of the cylindrical metal part. On the one hand, it is convenient to process the outer surface of the metal part. On the other hand, in this embodiment, only two groups of support components 6 are shown on the truss 5. In actual use, especially for thin-walled cylindrical metal parts, multiple groups of support components 6 can be provided to support the metal part from the inside. It can also prevent the deformation of the metal part caused by processing the outer surface of the metal part.

[0051] (III) The motor drives the threaded shaft 2 to rotate, so that the moving seat 3 is close to the metal piece, and the truss 5 and the support assembly 6 installed on the moving seat 3 are inserted into the metal piece, and then the control shaft 62 is rotated in the same way, so that the support roller 66 supports the metal piece. That is, the left and right sets of trusses 5 and the support assembly 6 installed on the trusses 5 cooperate to support the metal piece.

[0052] First, the angles of the pulley 64 driven by the control shaft 62 are different, the angles of the rotating frame 65 and the supporting roller 66 are also different, and the sizes of the circumscribed circles of the triangles formed by the three supporting rollers 66 are also different, that is, the support operation can be performed for cylindrical metal parts with different inner diameters. In addition, the distance between the two supporting columns 4 can be adjusted by the movable seat 3, that is, the support can be performed for metal parts of different lengths, thereby increasing the practicality of this embodiment.

[0053] (IV) Reference Figure 5 and Figure 6 , the control shaft 62 can only rotate clockwise. When the control shaft 62 rotates clockwise, it drives the rotating frame 65 to rotate and open; when the control shaft 62 rotates counterclockwise, the brake disc 71 is blocked by the pawl 72. Therefore, it can be ensured that after the support roller 66 supports the metal part, it will not suddenly reset and loosen during the processing, causing accidents, and ensure stable support. When the control shaft 62 needs to rotate in the opposite direction for recovery, the control plate 73 is toggled to compress the spring 74 and the pawl 72 away from the brake disc 71. At this time, the brake disc 71 and the control shaft 62 can rotate counterclockwise.

[0054] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A metal product processing fixture, comprising a base, characterized in that: The base is provided with: A movable seat, the movable seat being slidably mounted on the base; A support column, wherein two support columns are provided, one of which is fixedly mounted on the base, and the other is mounted on the movable base; A truss, wherein the truss is fixedly connected to one side of the support column; A support assembly, the support assembly is arranged in the truss, the support assembly comprises a control shaft and a support roller, the control shaft is used to control the rotation of the support roller, and one end of the control shaft passes through the support column, and the support roller is used to support the metal product; A brake is arranged inside the support column.

2. The metal product processing fixture according to claim 1, characterized in that: The support assembly also includes: A fixing frame, the fixing frame is fixedly connected to the truss, a bearing seat is arranged on the fixing frame, and the control shaft is rotatably connected to the fixing frame; A rotating shaft, the rotating shaft is rotatably mounted in the fixing frame, and three rotating shafts are provided, and the three rotating shafts are distributed in an equilateral triangle; A rotating frame is fixedly connected to the rotating shaft, and the supporting roller is rotatably mounted on the rotating frame.

3. The metal product processing fixture according to claim 2, characterized in that: The support assembly also includes pulleys, and each of the four pulleys forms a group, and the four pulleys are connected by belts, wherein three of the pulleys are fixedly connected to the rotating shaft, and the other pulley is fixedly connected to the control shaft.

4. The metal product processing fixture according to claim 1, characterized in that: The control shaft is rotatably connected to the support column, and one end of the control shaft extending out of the support column is connected to a hand wheel.

5. The metal product processing fixture according to claim 1, characterized in that: A cavity is provided in the support column, and the brake is arranged in the cavity, and the brake comprises: a brake disc, the brake disc being fixedly connected to the control shaft; A pawl, the pawl is rotatably arranged on one side of the brake disc, and a control plate is fixedly connected to one side of the pawl, and one end of the control plate extends out of a support column; A spring, one end of which is connected to the pawl, and the other end of which is connected to the inner wall of the inner cavity of the support column.

6. The metal product processing fixture according to claim 1, characterized in that: The control shaft is rotationally connected to the truss through a plane bearing.

7. The metal product processing fixture according to claim 1, characterized in that: The base is provided with a limiting slide groove, the movable seat is slidably installed in the limiting slide groove, and a threaded shaft is arranged in the limiting slide groove, one end of the threaded shaft is connected with a motor, and the threaded shaft runs through the movable seat as a whole.

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