Disc type workpiece fixing clamp for machining

Abstract

The disc type workpiece fixing clamp for machining comprises a fixing table, stroke grooves distributed in an annular array mode are formed in the upper surface of the fixing table, a partition plate is fixedly connected to the inner wall of the fixing table in a sleeved mode, a rotating rod is installed on the inner bottom wall of the fixing table through a bearing, and one end of the rotating rod penetrates through and extends to the upper surface of the partition plate. One end of the rotating rod is fixedly connected with a driving disc, and driving grooves distributed in an annular array mode are formed in the upper surface of the driving disc. According to the clamping device, the disc type workpiece is automatically clamped and fixed, the operation difficulty is reduced, the clamping efficiency of the disc type workpiece is improved, the machining efficiency is further improved, the clamped disc type workpiece is driven to be rotationally machined, and the machining efficiency is improved. And therefore, the effect of conveniently machining the outer sides of the disc workpieces is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a disc-type workpiece fixing clamp for mechanical processing. Background Art

[0002] Machining refers to the process of changing the shape, size or performance of a workpiece through a mechanical device. It can be divided into cutting and pressure processing according to the difference in processing methods. The production process of a machine refers to the entire process of making products from raw materials. For machine production, it includes the transportation and storage of raw materials, production preparation, blank manufacturing, parts processing and heat treatment, product assembly and debugging, painting and packaging, etc. The machining workbench is a key equipment in the mechanical production and processing process. In the machining industry, disc-type workpieces are often processed. When processing such parts, special disc-type workpiece fixtures are generally used to fix the workpiece.

[0003] Most of the existing clamps are equipped with multiple adjustable clamping devices on a platform to clamp the sides of the disc, thereby fixing the disc. However, it is cumbersome to manually operate multiple clamping devices in sequence, and the fixing efficiency is low. In addition, the extended length of each clamping device is different, which can easily lead to a deviation between the center of the disc and the center of the platform, thereby reducing the processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a disc-type workpiece fixing fixture for mechanical processing, so as to solve the problem raised in the above background technology that most of the existing fixtures are arranged on a platform to clamp the side of the disc, but it is cumbersome to manually operate multiple clamping devices in sequence, the fixing efficiency is low, and the extended length of each clamping device is different, which can easily lead to a deviation between the center of the disc and the center of the platform, thereby reducing the processing efficiency.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a disc-type workpiece fixing fixture for mechanical processing, comprising a fixing table, the upper surface of the fixing table is provided with travel grooves distributed in a circular array, the inner wall of the fixing table is fixedly sleeved with a partition plate, the inner bottom wall of the fixing table is provided with a rotating rod through a bearing, one end of the rotating rod penetrates and extends to the upper surface of the partition plate, one end of the rotating rod is fixedly connected with a driving disk, and the upper surface of the driving disk is provided with driving grooves distributed in a circular array;

[0007] The outer surface of the rotating rod is provided with a clamping device, and the clamping device comprises a worm wheel, and the inner wall of the worm wheel is fixedly sleeved with the outer surface of the rotating rod.

[0008] Furthermore, a first servo motor is fixedly mounted on the inner bottom wall of the fixed platform, a worm is fixedly mounted on the output shaft of the first servo motor via a coupling, an outer surface of the worm is meshed with a tooth surface of the worm wheel, and a limiting slide groove distributed in a ring array is provided on the upper surface of the partition.

[0009] Furthermore, the inner wall of the limiting sliding groove is slidably connected to a limiting sliding block, the upper surface of the limiting sliding block is fixedly connected to a driving rod, and the outer surface of the driving rod is slidably plugged into the inner wall of the driving groove.

[0010] Furthermore, one end of the driving rod passes through the travel groove and extends to the upper surface of the fixed table, one end of the driving rod is fixedly connected to a fixed clamp block, a positioning rod is installed on the upper surface of the fixed table through a bearing, one end of the positioning rod is fixedly connected to a placing plate, the upper surface of the fixed table is fixedly connected to a mounting frame, and a second servo motor is fixedly installed on the upper surface of the mounting frame.

[0011] Furthermore, the output shaft of the second servo motor is fixedly installed with a rotating shaft through a coupling, one end of the rotating shaft passes through and extends to the lower surface of the mounting frame, the outer surface of the rotating shaft is fixedly connected with symmetrically distributed limit strips, the outer surface of the rotating shaft is movably sleeved with a movable sleeve, and the lower surface of the movable sleeve is fixedly connected with a pressure block.

[0012] Furthermore, a lifting plate is installed on the outer surface of the movable sleeve through a bearing, and symmetrically distributed servo electric cylinders are fixedly installed on the upper surface of the mounting frame. One end of the servo electric cylinder piston rod passes through and extends to the lower surface of the mounting frame, and one end of the two servo electric cylinder piston rods are fixedly connected to the upper surface of the lifting plate.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] The utility model realizes automatic clamping and fixing of disc-like workpieces by arranging a clamping device, which not only reduces the difficulty of operation, but also improves the clamping efficiency of the disc-like workpieces, thereby improving the processing efficiency, and has the effect of driving the clamped disc-like workpiece to rotate, thereby facilitating the processing of the outer side of the disc-like workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the main components of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the fixed platform structure of the utility model;

[0018] Figure 3 This is a three-dimensional diagram of the partition structure of the utility model;

[0019] Figure 4 This is a three-dimensional diagram of the movable sleeve structure of the utility model;

[0020] Figure 5 This is a three-dimensional diagram of the drive rod structure of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Fixed table; 2. Travel groove; 3. Partition plate; 4. Rotating rod; 5. Driving plate; 6. Driving groove; 7. Worm gear; 71. First servo motor; 72. Worm; 73. Limiting slide groove; 74. Limiting slider; 75. Driving rod; 76. Fixed clamp block; 77. Positioning rod; 78. Placing plate; 79. Mounting frame; 710. Second servo motor; 711. Rotating shaft; 712. Limiting strip; 713. Movable sleeve; 714. Pressing block; 715. Lifting plate; 716. Servo electric cylinder. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-Figure 5As shown, this embodiment is a disc-type workpiece fixing fixture for machining, comprising a fixing table 1, the upper surface of the fixing table 1 is provided with travel grooves 2 distributed in a circular array, the inner wall of the fixing table 1 is fixedly sleeved with a partition plate 3, the inner bottom wall of the fixing table 1 is provided with a rotating rod 4 through a bearing, one end of the rotating rod 4 penetrates and extends to the upper surface of the partition plate 3, one end of the rotating rod 4 is fixedly connected to a driving disk 5, and the upper surface of the driving disk 5 is provided with driving grooves 6 distributed in a circular array;

[0028] The outer surface of the rotating rod 4 is provided with a clamping device, and the clamping device includes a worm gear 7 , and the inner wall of the worm gear 7 is fixedly sleeved with the outer surface of the rotating rod 4 .

[0029] A first servo motor 71 is fixedly installed on the inner bottom wall of the fixed table 1, and a worm 72 is fixedly installed on the output shaft of the first servo motor 71 through a coupling. The outer surface of the worm 72 meshes with the tooth surface of the worm wheel 7, and a limiting slide groove 73 distributed in a ring array is opened on the upper surface of the partition 3. The inner wall of the limiting slide groove 73 is slidably connected with a limiting slider 74, and the upper surface of the limiting slider 74 is fixedly connected with a driving rod 75. The outer surface of the driving rod 75 is slidably plugged with the inner wall of the driving groove 6, one end of the driving rod 75 passes through the stroke groove 2 and extends to the upper surface of the fixed table 1, and one end of the driving rod 75 is fixedly connected with a fixed clamping block 76. A positioning rod 77 is installed on the upper surface of the fixed table 1 through a bearing, and one end of the positioning rod 77 is fixedly connected with a placing plate 78. A mounting frame 79 is fixedly connected to the upper surface of the fixed table 1, and a second servo motor 710 is fixedly installed on the upper surface of the mounting frame 79.

[0030] The self-locking characteristics of the worm wheel 7 and the worm 72 ensure the stability of the clamping of the disc-like workpiece. The limiting groove 73 and the limiting slider 74 cooperate with the driving rod 75 for stable movement. The synchronous movement of multiple driving rods 75 achieves the function of automatically clamping and fixing the disc-like workpiece through the fixed clamp block 76. A pressure sensor is provided in the fixed clamp block 76. When the clamping force reaches a preset value, the first servo motor 71 stops working.

[0031] The output shaft of the second servo motor 710 is fixedly installed with a rotating shaft 711 through a coupling, one end of the rotating shaft 711 passes through and extends to the lower surface of the mounting frame 79, the outer surface of the rotating shaft 711 is fixedly connected with a symmetrically distributed limit strip 712, the outer surface of the rotating shaft 711 is movably sleeved with a movable sleeve 713, the lower surface of the movable sleeve 713 is fixedly connected with a pressure block 714, the outer surface of the movable sleeve 713 is installed with a lifting plate 715 through a bearing, the upper surface of the mounting frame 79 is fixedly installed with symmetrically distributed servo electric cylinders 716, one end of the piston rod of the servo electric cylinder 716 passes through and extends to the lower surface of the mounting frame 79, and one end of the piston rod of the two servo electric cylinders 716 is fixedly connected to the upper surface of the lifting plate 715.

[0032] The extension of the piston rod of the servo electric cylinder 716 drives the movable sleeve 713 to move downward through the lifting plate 715. The movable sleeve 713 moves downward and contacts the top of the disc-like workpiece through the pressure block 714, thereby pressing the disc-like workpiece downward and fixing it. At the same time, the second servo motor 710 drives the rotating shaft 711 to rotate. The rotation of the rotating shaft 711 drives the movable sleeve 713 to rotate through the cooperation of the limit bar 712. The rotation of the movable sleeve 713 drives the disc-like workpiece to rotate through the pressure block 714, thereby facilitating the side processing of the disc-like workpiece.

[0033] By setting up the clamping device, the disc-like workpiece can be automatically clamped and fixed, which not only reduces the difficulty of operation, but also improves the clamping efficiency of the disc-like workpiece, thereby improving the processing efficiency, and has the effect of driving the clamped disc-like workpiece to rotate, thereby facilitating the processing of the outer side of the disc-like workpiece.

[0034] Working principle: Step 1, place the disc-like workpiece on the placement plate 78, and then start the first servo motor 71 to drive the worm 72 to rotate clockwise, the rotation of the worm 72 drives the rotating rod 4 to rotate through the meshing worm wheel 7, the rotation of the rotating rod 4 drives the driving plate 5 to rotate, the rotation of the driving plate 5 drives the driving rod 75 to move through the driving groove 6, the movement of the driving rod 75 is stably moved through the cooperation of the limiting slide groove 73 and the limiting slider 74, and the movement of the driving rod 75 drives the fixed clamping block 76 to move through the guidance of the stroke groove 2, and the disc-like workpiece on the placement plate 78 is fixed by the synchronous movement of multiple fixed clamping blocks 76. At this time, stop the servo motor and carry out processing operations. The self-locking characteristics of the worm wheel 7 and the worm 72 ensure the stability of the clamping of the disc-like workpiece;

[0035] Step 2: When the side of the disc-like workpiece needs to be processed, the piston rod of the servo electric cylinder 716 is started to extend, and the extension of the piston rod of the servo electric cylinder 716 drives the movable sleeve 713 to move downward through the lifting plate 715. The movable sleeve 713 moves downward through the pressing block 714 and contacts the upper part of the disc-like workpiece, and the disc-like workpiece is clamped by the placement plate 78. At this time, the first servo motor 71 is started to drive the worm 72 to rotate counterclockwise. The counterclockwise rotation of the worm 72 drives the multiple fixed clamps 76 to disengage from the clamping of the side of the disc-like workpiece through the cooperation of the worm wheel 7, the rotating rod 4 and the driving plate 5. At this time, the side of the disc-like workpiece can be processed;

[0036] Step three, when it is necessary to polish and grind the side of the disc-like workpiece, start the second servo motor 710, and the second servo motor 710 drives the rotating shaft 711 to rotate. The rotation of the rotating shaft 711 drives the movable sleeve 713 to rotate through the cooperation of the limit bar 712. The rotation of the movable sleeve 713 drives the disc-like workpiece to rotate through the pressure block 714, and through the positioning rod 77 and the placement plate 78, it cooperates with the disc-like workpiece to position and rotate, thereby facilitating the side processing of the disc-like workpiece.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A disc-type workpiece fixing fixture for machining, comprising a fixing table (1), characterized in that: The upper surface of the fixed platform (1) is provided with travel grooves (2) distributed in a circular array, the inner wall of the fixed platform (1) is fixedly sleeved with a partition (3), the inner bottom wall of the fixed platform (1) is provided with a rotating rod (4) via a bearing, one end of the rotating rod (4) penetrates and extends to the upper surface of the partition (3), one end of the rotating rod (4) is fixedly connected to a driving disk (5), and the upper surface of the driving disk (5) is provided with driving grooves (6) distributed in a circular array; The outer surface of the rotating rod (4) is provided with a clamping device, and the clamping device comprises a worm wheel (7), and the inner wall of the worm wheel (7) is fixedly sleeved with the outer surface of the rotating rod (4).

2. A disc-type workpiece fixing fixture for machining according to claim 1, characterized in that: A first servo motor (71) is fixedly mounted on the inner bottom wall of the fixed platform (1); a worm (72) is fixedly mounted on the output shaft of the first servo motor (71) via a coupling; the outer surface of the worm (72) meshes with the tooth surface of the worm wheel (7); and the upper surface of the partition (3) is provided with limiting sliding grooves (73) distributed in a ring array.

3. A disc-type workpiece fixing fixture for machining according to claim 2, characterized in that: The inner wall of the limiting sliding groove (73) is slidably connected to a limiting sliding block (74), the upper surface of the limiting sliding block (74) is fixedly connected to a driving rod (75), and the outer surface of the driving rod (75) is slidably plugged into the inner wall of the driving groove (6).

4. A disc-type workpiece fixing fixture for machining according to claim 3, characterized in that: One end of the driving rod (75) passes through the travel groove (2) and extends to the upper surface of the fixed platform (1); one end of the driving rod (75) is fixedly connected to a fixed clamping block (76); a positioning rod (77) is installed on the upper surface of the fixed platform (1) through a bearing; one end of the positioning rod (77) is fixedly connected to a placement plate (78); the upper surface of the fixed platform (1) is fixedly connected to a mounting frame (79); and a second servo motor (710) is fixedly installed on the upper surface of the mounting frame (79).

5. A disc-type workpiece fixing fixture for machining according to claim 4, characterized in that: The output shaft of the second servo motor (710) is fixedly mounted with a rotating shaft (711) via a coupling, one end of the rotating shaft (711) passes through and extends to the lower surface of the mounting frame (79), the outer surface of the rotating shaft (711) is fixedly connected with symmetrically distributed limiting strips (712), the outer surface of the rotating shaft (711) is movably sleeved with a movable sleeve (713), and the lower surface of the movable sleeve (713) is fixedly connected with a pressure block (714).

6. A disc-type workpiece fixing fixture for machining according to claim 5, characterized in that: A lifting plate (715) is mounted on the outer surface of the movable sleeve (713) via a bearing, and symmetrically distributed servo electric cylinders (716) are fixedly mounted on the upper surface of the mounting frame (79), one end of the piston rod of the servo electric cylinder (716) passes through and extends to the lower surface of the mounting frame (79), and one end of the piston rod of the two servo electric cylinders (716) is fixedly connected to the upper surface of the lifting plate (715).

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