Part numerical control machining clamp

Abstract

The utility model discloses a part numerical control machining clamp which comprises a clamp platform, a bottom barrel is arranged at the bottom of the clamp platform, a bottom plate is installed at the bottom of the bottom barrel, and the part numerical control machining clamp further comprises a clamping device installed in the clamp platform; the reversing device is mounted in the bottom cylinder; the clamping device comprises a first threaded rod and a second threaded rod, wherein the first threaded rod is in threaded connection with the inner wall of the clamp platform; and the vertical plate is rotationally connected to one end of the first threaded rod through a bearing. The utility model relates to the technical field of numerical control machine tool clamps, the part numerical control machining clamp fixes a cylindrical workpiece from inside to outside through the clamping device, the contact area of the cylindrical workpiece and the clamping device is large, the cylindrical workpiece can be firmly fixed, and the machining precision is improved. The numerical control machine tool does not shake when machining the cylindrical workpiece, so that the machining precision of the cylindrical workpiece is improved, and use by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machine tool fixtures, in particular to a CNC machining fixture for parts. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends out various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing. CNC machine tools require the use of fixtures in the process of parts processing.

[0003] At present, when the CNC machine tool processing fixture is used, the fixture is fixed at a specified position, and the workpiece to be processed is placed on the top of the fixture. The staff drives the clamping plate to move inward by rotating the threaded rod. The clamping plate cooperates with the fixture platform to clamp and fix the workpiece to be processed, which is convenient for subsequent processing of the workpiece.

[0004] When using traditional CNC machine tool processing fixtures, they are unable to securely fix cylindrical workpieces. The staff places the cylindrical workpiece on the top of the fixture platform and fixes the cylindrical workpiece through the clamping plate and the fixture platform. Since both sides of the clamping plate and the fixture platform are straight surfaces, the contact area with the cylindrical workpiece is small and the cylindrical workpiece cannot be securely fixed. The CNC machine tool will shake when processing the cylindrical workpiece, thereby reducing the processing accuracy of the cylindrical workpiece. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a CNC machining fixture for parts, which solves the problem that traditional CNC machine tool machining fixtures are unable to firmly fix cylindrical workpieces when in use. The staff places the cylindrical workpiece on the top of the fixture platform, and fixes the cylindrical workpiece by means of a clamping plate and the fixture platform. Since both sides of the clamping plate and the fixture platform are straight surfaces, the contact area with the cylindrical workpiece is small and the cylindrical workpiece cannot be firmly fixed. The CNC machine tool will shake when processing the cylindrical workpiece, thereby reducing the problem of the machining accuracy of the cylindrical workpiece.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a part CNC machining fixture comprises a fixture platform, a bottom cylinder is arranged at the bottom of the fixture platform, a bottom plate is installed at the bottom of the bottom cylinder, and the part CNC machining fixture also comprises: a clamping device, which is installed inside the fixture platform; a reversing device, which is installed inside the bottom cylinder; the clamping device comprises: a first threaded rod, which is threadedly connected to the inner wall of the fixture platform; a vertical plate, which is rotatably connected to one end of the first threaded rod through a bearing; a plurality of clamping blocks, which are all inserted into the inner wall of the fixture platform, and the lower part of the clamping block located at the upper part is fixedly connected to the upper part of the vertical plate; a plurality of connecting rods, which are all rotatably connected to the back side of the clamping block; a rotating block, which is rotatably connected to one end of the connecting rod and is rotatably connected to the inner wall of the fixture platform; the reversing device comprises: a rotating cylinder, which is rotatably connected to the inner wall of the bottom cylinder through a bearing The cam is connected to the inner wall of the bottom cylinder and is fixedly connected to the bottom of the clamping platform; the slide plate is slidably engaged with the inner wall of the bottom cylinder and is movably connected to the groove of the rotating cylinder; the second threaded rod is rotatably connected to the inner wall of the bottom cylinder through a bearing and is threadedly connected to the inner wall of the slide plate; the bevel gear set is installed on the outer wall of the second threaded rod; the knob is rotatably connected to the inner wall of the bottom cylinder through a bearing and is fixedly connected to one side of the bevel gear set; wherein, the clamping device can clamp the cylindrical workpiece from the inside, and the reversing device can adjust the processing angle of the cylindrical workpiece, and when the first threaded rod rotates, the upper clamping block is driven downward by the vertical plate, and the upper clamping block drives the rotating block to rotate through the upper connecting rod, and the rotating block can drive the two clamping blocks below to move through the two connecting rods below, and when the knob is rotated, the second threaded rod is driven to rotate through the bevel gear set, and the second threaded rod drives the rotating cylinder to rotate through the slide plate.

[0007] Preferably, a rubber sleeve is installed on the top of the clamping block, the inner wall of the rubber sleeve is threadedly connected to a first bolt, and the outer wall of the first bolt is threadedly connected to the inner wall of the clamping block.

[0008] Preferably, the inner wall of the base plate is threadedly connected with a second bolt, and the outer wall of the second bolt is sleeved with a sealing ring.

[0009] Beneficial Effects

[0010] The utility model provides a CNC machining fixture for parts. It has the following beneficial effects: the CNC machining fixture for parts fixes the cylindrical workpiece from the inside to the outside through a clamping device, the contact area between the cylindrical workpiece and the clamping device is large, the cylindrical workpiece can be firmly fixed, and the CNC machine tool will not shake when processing the cylindrical workpiece, thereby improving the processing accuracy of the cylindrical workpiece;

[0011] The operator adjusts the direction of the clamping platform through the reversing device. When the angle of the clamping platform rotates, the cylindrical workpiece on the top is driven to rotate, thereby adjusting the direction of the cylindrical workpiece, making it convenient for the CNC machine tool to process the cylindrical workpiece from different angles, and improving the use range of the processing fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A top sectional view of

[0014] Figure 3 for Figure 1 A cross-sectional view of

[0015] Figure 4 for Figure 1 A schematic diagram of the structure of the central rotating cylinder, the sliding plate and the second threaded rod;

[0016] Figure 5 for Figure 1 A schematic diagram of the structure of the midsole tube, the bottom plate and the second bolt;

[0017] Figure 6 for Figure 1 Schematic diagram of the structure of the middle clamp block, the rubber sleeve and the first bolt.

[0018] In the figure: 1. fixture platform, 2. clamping device, 201. first threaded rod, 202. vertical plate, 203. clamping block, 204. connecting rod, 205. rotating block, 3. rubber sleeve, 4. first bolt, 5. bottom cylinder, 6. reversing device, 601. rotating cylinder, 602. slide plate, 603. second threaded rod, 604. bevel gear set, 605. knob, 7. bottom plate, 8. second bolt, 9. sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0021] When using traditional CNC machine tool processing fixtures, they are unable to securely fix cylindrical workpieces. The staff places the cylindrical workpiece on the top of the fixture platform and fixes the cylindrical workpiece through the clamping plate and the fixture platform. Since both sides of the clamping plate and the fixture platform are straight surfaces, the contact area with the cylindrical workpiece is small and the cylindrical workpiece cannot be securely fixed. The CNC machine tool will shake when processing the cylindrical workpiece, thereby reducing the processing accuracy of the cylindrical workpiece.

[0022] In view of this, the utility model provides a CNC machining fixture for parts, which fixes a cylindrical workpiece from the inside to the outside through a clamping device. The contact area between the cylindrical workpiece and the clamping device is large, so the cylindrical workpiece can be firmly fixed. The CNC machine tool will not shake when processing the cylindrical workpiece, thereby improving the machining accuracy of the cylindrical workpiece.

[0023] Embodiment 1: By Figure 1 , 2, 3, 4, 5 and 6, a part CNC machining fixture includes a fixture platform 1, a bottom cylinder 5 is arranged at the bottom of the fixture platform 1, a bottom plate 7 is installed at the bottom of the bottom cylinder 5, and the part CNC machining fixture also includes: a clamping device 2, installed inside the fixture platform 1; a reversing device 6, installed inside the bottom cylinder 5; the clamping device 2 includes: a first threaded rod 201, threadedly connected to the inner wall of the fixture platform 1; a vertical plate 202, rotatably connected to one end of the first threaded rod 201 through a bearing; The clamping blocks 203 are provided in plurality and are all plugged into the inner wall of the fixture platform 1, and the lower part of the clamping block 203 located at the upper part is fixedly connected to the upper part of the vertical plate 202; the connecting rods 204 are provided in plurality and are all rotatably connected to the back of the clamping block 203; the rotating block 205 is rotatably connected to one end of the connecting rod 204 and is rotatably connected to the inner wall of the fixture platform 1; the reversing device 6 includes: a rotating cylinder 601, which is rotatably connected to the inner wall of the bottom cylinder 5 through a bearing and is fixedly connected to the bottom of the fixture platform 1; a sliding plate 602, The second threaded rod 603 is rotatably connected to the inner wall of the bottom cylinder 5 and is movably connected to the groove of the rotating cylinder 601; the second threaded rod 603 is rotatably connected to the inner wall of the bottom cylinder 5 through a bearing and is threadedly connected to the inner wall of the slide plate 602; the bevel gear set 604 is installed on the outer wall of the second threaded rod 603; the knob 605 is rotatably connected to the inner wall of the bottom cylinder 5 through a bearing and is fixedly connected to one side of the bevel gear set 604; wherein the clamping device 2 can clamp the cylindrical workpiece from the inside, and the reversing device 6 can The processing angle of the shaped workpiece can be adjusted. When the first threaded rod 201 rotates, the upper clamping block 203 is driven to move downward through the vertical plate 202. The upper clamping block 203 can drive the rotating block 205 to rotate through the upper connecting rod 204. The rotating block 205 can drive the two lower clamping blocks 203 to move through the two lower connecting rods 204. When the knob 605 rotates, the second threaded rod 603 is driven to rotate through the bevel gear set 604. The second threaded rod 603 drives the rotating drum 601 to rotate through the slide plate 602.

[0024] In the specific implementation process, it is worth pointing out that the bottom plate 7 increases the contact area between the bottom cylinder 5 and the CNC machine tool, making the clamping platform on the top of the bottom cylinder 5 more stable when in use, the clamping device 2 is convenient for fixing the cylindrical workpiece, and the reversing device 6 is convenient for processing the cylindrical workpiece from different angles. In the specific implementation process, it is worth pointing out that the top connecting rod 204 drives the rotating block 205 to rotate, and the rotating block 205 drives the other clamping blocks 203 to move inward through the other two connecting rods 204, and the knob 605 drives the second threaded rod 603 to rotate through the bevel gear set 604, and the second threaded rod 603 drives the rotating cylinder 601 to rotate through the slide plate 602. The top clamping platform 1 rotates, and the bevel gear set 604 is composed of two meshing bevel gears;

[0025] Furthermore, a rubber sleeve 3 is installed on the top of the clamp block 203, the inner wall of the rubber sleeve 3 is threadedly connected with a first bolt 4, and the outer wall of the first bolt 4 is threadedly connected to the inner wall of the clamp block 203;

[0026] In the specific implementation process, it is worth pointing out that the first bolt 4 fixes the rubber sleeve 3 on the outer wall of the clamping block 203, and the rubber sleeve 3 can increase the friction between the clamping block 203 and the cylindrical workpiece;

[0027] Furthermore, the inner wall of the bottom plate 7 is threadedly connected with a second bolt 8, and the outer wall of the second bolt 8 is sleeved with a sealing ring 9;

[0028] In the specific implementation process, it is worth pointing out that the bottom plate 7 is fixed at the designated position of the CNC machine tool by the second bolt 8, so as to fix the bottom cylinder 5, and the sealing ring 9 can seal the connection between the second bolt 8 and the bottom plate 7, so as to prevent the bolt from rusting;

[0029] Specifically, when using the part CNC machining fixture, the staff puts the cylindrical workpiece to be processed on the top of the fixture platform 1, clamps the cylindrical workpiece from the inside through the clamping device 2, and converts the machining angle of the cylindrical workpiece through the reversing device 6, so as to facilitate machining of the cylindrical workpiece from different directions. The staff puts the cylindrical workpiece to be processed on the top of the fixture platform 1, manually drives the first threaded rod 201 to rotate, the first threaded rod 201 drives the top connecting rod 204 to move through the top vertical plate 202, the top connecting rod 204 drives the rotating block 205 to rotate, and the rotating block 205 drives the rotating block 205 through the other two connecting rods. 204 drives the other two clamping blocks 203 to move, and multiple clamping blocks 203 move outward at the same time to clamp the cylindrical workpiece; when the cylindrical workpiece needs to be processed in a changed direction, the knob 605 is manually driven to rotate, the knob 605 drives the bevel gear set 604 to rotate, and the bevel gear set 604 drives the second threaded rod 603 to rotate. Since the slide plate 602 is restricted by the bottom cylinder 5, the second threaded rod 603 drives the slide plate 602 to move. When the slide plate 602 moves, the groove on the outer wall of the rotating cylinder 601 drives the rotating cylinder 601 to rotate. Rotating the rotating cylinder 601 drives the top clamping platform 1 to rotate, thereby realizing the angle conversion of the top cylindrical workpiece.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for numerically controlling parts, comprising a fixture platform (1), characterized in that: The bottom of the fixture platform (1) is provided with a bottom cylinder (5), and the bottom of the bottom cylinder (5) is installed with a bottom plate (7). The part CNC machining fixture also includes: A clamping device (2) installed inside the clamping platform (1); A reversing device (6) installed inside the bottom cylinder (5); The clamping device (2) comprises: A first threaded rod (201) threadedly connected to the inner wall of the fixture platform (1); A vertical plate (202) rotatably connected to one end of the first threaded rod (201) via a bearing; A plurality of clamping blocks (203) are provided, each of which is plugged into the inner wall of the clamping platform (1), and the lower part of the clamping block (203) located at the upper part is fixedly connected to the upper part of the vertical plate (202); A plurality of connecting rods (204) are provided, each of which is rotatably connected to the back side of the clamping block (203); A rotating block (205) is rotatably connected to one end of the connecting rod (204) and is rotatably connected to the inner wall of the clamping platform (1); The reversing device (6) comprises: A rotating cylinder (601) is rotatably connected to the inner wall of the bottom cylinder (5) via a bearing and is fixedly connected to the bottom of the fixture platform (1); The slide plate (602) is slidably engaged with the inner wall of the bottom cylinder (5) and is movably connected with the groove of the rotating cylinder (601); The second threaded rod (603) is rotatably connected to the inner wall of the bottom cylinder (5) through a bearing and is threadedly connected to the inner wall of the slide plate (602); A bevel gear set (604) mounted on the outer wall of the second threaded rod (603); A knob (605) is rotatably connected to the inner wall of the bottom cylinder (5) via a bearing and is fixedly connected to one side of the bevel gear set (604); The clamping device (2) can clamp the cylindrical workpiece from the inside, the reversing device (6) can adjust the processing angle of the cylindrical workpiece, the first threaded rod (201) drives the upper clamping block (203) to move downward through the vertical plate (202) when rotating, the upper clamping block (203) drives the rotating block (205) to rotate through the upper connecting rod (204), the rotating block (205) can drive the two lower clamping blocks (203) to move through the two lower connecting rods (204), the knob (605) drives the second threaded rod (603) to rotate through the bevel gear set (604) when rotating, and the second threaded rod (603) drives the rotating drum (601) to rotate through the slide plate (602).

2. A parts CNC machining fixture according to claim 1, characterized in that: A rubber sleeve (3) is installed on the top of the clamping block (203); a first bolt (4) is threadedly connected to the inner wall of the rubber sleeve (3); and an outer wall of the first bolt (4) is threadedly connected to the inner wall of the clamping block (203).

3. The part CNC machining fixture according to claim 1, characterized in that: The inner wall of the bottom plate (7) is threadedly connected with a second bolt (8), and the outer wall of the second bolt (8) is sleeved with a sealing ring (9).

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