Vertical machining center positioning clamp

Abstract

The utility model relates to the technical field of center positioning clamps, in particular to a vertical machining center positioning clamp which comprises a machining table and an air cylinder fixedly installed at the bottom of an inner cavity of the machining table. The top of the first supporting plate and the top of the second supporting plate are each fixedly provided with two fixing columns, the tops of the two fixing columns are each rotationally provided with an L-shaped fixing rod, and the tops of the two L-shaped fixing rods are each rotationally provided with two clamping wheels; through cooperative use of the driving piece and the air cylinder, the two sets of supporting plates can be driven to move in the opposite directions, so that the four corners of square workpieces with large sizes can be synchronously positioned and fixed through the two sets of clamping wheels on each set of L-shaped fixing rods, center positioning of the workpieces is achieved, deviation of the workpieces can be effectively avoided, and the working efficiency is improved. And the multiple sets of clamping wheels are driven only through the air cylinders, operation is easier and more convenient, and the later use and maintenance cost is relatively low.

Description

Technical Field

[0001] This utility model relates to the field of center positioning fixture technology, specifically to a vertical machining center positioning fixture. Background Technology

[0002] Vertical machining center positioning fixtures are tools or equipment used to securely fix workpieces on the machining table during the operation of a vertical machining center, ensuring that the workpieces do not shift during machining, thereby guaranteeing machining accuracy and efficiency. However, when dealing with some large square workpieces, some existing positioning fixtures are inconvenient to quickly fix the workpieces at multiple points, which may lead to workpiece displacement and affect machining accuracy. While some positioning fixtures can position these large square workpieces, they require multiple drive components to drive them simultaneously, resulting in higher usage and maintenance costs, and are also relatively complex in actual operation.

[0003] In view of this, we propose a vertical machining center positioning fixture. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a vertical machining center positioning fixture, which can effectively solve the problems of the existing technology being inconvenient for multi-point positioning of large square workpieces, affecting machining accuracy, as well as high use and maintenance costs and relatively complex operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a vertical machining center positioning fixture, including a machining table and a cylinder fixedly installed at the bottom of the inner cavity of the machining table. The bottom of the machining table is provided with a first support plate and a second support plate, and the first support plate and the second support plate are symmetrically distributed.

[0007] Two sets of fixing columns are fixedly installed on the top of the first support plate and the second support plate. An L-shaped fixing rod is rotatably installed on the top of the two sets of fixing columns. Two sets of clamping wheels are rotatably installed on the top of the two sets of L-shaped fixing rods.

[0008] The bottom of the first support plate is equipped with a driving component, which is also located inside the processing table.

[0009] Furthermore, the driving component includes a top plate with a bottom of a first support plate, one side of which is fixedly mounted to one end of the cylinder.

[0010] Furthermore, a rotating rod is rotatably mounted on the top of the inner cavity of the processing table, and push-pull rods are rotatably mounted on both ends of the rotating rod.

[0011] Furthermore, the ends of the two sets of push-pull rods furthest from the rotating rod are respectively rotatably mounted on the bottom of the first support plate and the second support plate, and the two sets of push-pull rods are arranged in parallel.

[0012] Furthermore, two sets of sliding sleeves are fixedly installed on the top of both the first and second support plates, and slide rails are slidably installed on the inner cavity sidewalls of the two sets of sliding sleeves, with the top of the slide rails fixedly installed on the top of the inner cavity of the processing table.

[0013] Furthermore, two sets of first connecting rods are fixedly installed on the top of both the first and second support plates, and springs are fixedly installed on the top of both sets of first connecting rods. A second connecting rod is fixedly installed on the end of each set of springs away from the first connecting rod, and the top of each set of second connecting rods is fixedly installed on the bottom of the L-shaped fixing rod.

[0014] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0015] This invention features a first support plate and a second support plate at the bottom of a processing table, with two sets of L-shaped fixing rods on each support plate. Through the combined use of a drive unit and a cylinder, the two support plates can move in opposite directions. By utilizing the two sets of clamping wheels on each set of L-shaped fixing rods, the four corners of some large square workpieces can be simultaneously positioned and fixed, achieving center positioning of the workpiece. This effectively prevents workpiece displacement. Furthermore, the multiple sets of clamping wheels are driven by a cylinder, making operation simpler and reducing maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a partial structural diagram of the slide rail, slide sleeve, and related components of this utility model;

[0019] Figure 3 This is a partial structural diagram of the spring and related components of this utility model.

[0020] The labels in the diagram represent: 1. Processing table; 2. Cylinder; 3. Top plate; 4. First support plate; 5. Second support plate; 6. Fixed column; 7. L-shaped fixed rod; 8. Clamping wheel; 9. Slide rail; 10. Sliding sleeve; 11. Rotating rod; 12. Push-pull rod; 13. First connecting rod; 14. Second connecting rod; 15. Spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] A vertical machining center positioning fixture includes a machining table 1 and a cylinder 2 fixedly installed at the bottom of the inner cavity of the machining table 1. The bottom of the machining table 1 is provided with a first support plate 4 and a second support plate 5, which are symmetrically distributed. The top of the first support plate 4 and the second support plate 5 are each fixedly installed with two sets of fixing columns 6. The top of the two sets of fixing columns 6 is rotatably installed with L-shaped fixing rods 7. The top of the two sets of L-shaped fixing rods 7 is rotatably installed with two sets of clamping wheels 8. The bottom of the first support plate 4 is provided with a driving component, which is also located inside the machining table 1.

[0024] Specifically, for some larger square workpieces, they can be placed on the top of the processing table 1. Then, the cylinder 2 fixedly installed at the bottom of the inner cavity of the processing table 1, together with the driving component, can drive the first support plate 4 and the second support plate 5 to move towards each other, and drive the two sets of L-shaped fixing rods 7 fixedly installed on the top to move. At this time, the clamping wheels 8 at the top of each set of L-shaped fixing rods 7 can clamp and fix the four corners of the square workpiece simultaneously, thereby achieving center positioning of the workpiece and preventing the workpiece from shifting position.

[0025] Specifically, the driving component includes a top plate 3 at the bottom of the first support plate 4, one side of the top plate 3 is fixedly installed at one end of the cylinder 2, a rotating rod 11 is rotatably installed on the top of the inner cavity of the processing table 1, and push-pull rods 12 are rotatably installed at both ends of the rotating rod 11. The ends of the two sets of push-pull rods 12 away from the rotating rod 11 are respectively rotatably installed at the bottom of the first support plate 4 and the second support plate 5, and the two sets of push-pull rods 12 are arranged in parallel. Two sets of sliding sleeves 10 are fixedly installed on the top of the first support plate 4 and the second support plate 5. Slide rails 9 are slidably installed on the inner cavity sidewalls of the two sets of sliding sleeves 10, and the top of the slide rails 9 is fixedly installed on the top of the inner cavity of the processing table 1. Two sets of first connecting rods 13 are fixedly installed on the top of the first support plate 4 and the second support plate 5. Springs 15 are fixedly installed on the top of the two sets of first connecting rods 13. Second connecting rods 14 are fixedly installed on the ends of the two sets of springs 15 away from the first connecting rods 13, and the tops of the two sets of second connecting rods 14 are fixedly installed on the bottom of the L-shaped fixed rod 7.

[0026] Specifically, when the workpiece needs to be centered, the cylinder 2 first moves the top plate 3, which in turn moves the inner sliding sleeve 10 of the slide rail 9 and the first support plate 4 at the bottom of the sliding sleeve 10 towards the center position. At this time, the push-pull rod 12 at the bottom of the first support plate 4 can drive the rotating rod 11 rotatably mounted at the bottom of the processing table 1 to rotate. Thus, the push-pull rod 12 rotatably mounted at the other end of the rotating rod 11 drives the second support plate 5 to move towards the center position. When the clamping wheels 8 provided on the first support plate 4 and the second support plate 5 contact and abut against the workpiece... When moving to both sides, the first support plate 4 and the second support plate 5 continue to move, causing the L-shaped fixing rod 7 on the fixing column 6 to rotate. This allows the clamping wheel 8, which is rotatably mounted on the other end of the L-shaped fixing rod 7, to position and clamp the workpiece on the other two sides. When it is necessary to release the workpiece, the first support plate 4 and the second support plate 5 can be moved away from the center of the processing table by the reverse output of the cylinder 2. Each set of L-shaped fixing rods 7 can be rotated and reset by the spring 15 fixedly installed between the first connecting rod 13 and the second connecting rod 14.

[0027] The working principle of this utility model is as follows: For some larger square workpieces, they can be placed on the top of the processing table 1. When it is necessary to center the workpiece, the top plate 3 is moved by the cylinder 2, which can move the inner sleeve 10 of the slide rail 9 and the first support plate 4 at the bottom of the sleeve 10 towards the center position. At this time, the push-pull rod 12 at the bottom of the first support plate 4 can drive the rotating rod 11 rotatably mounted at the bottom of the processing table 1 to rotate. Thus, the push-pull rod 12 rotatably mounted at the other end of the rotating rod 11 drives the second support plate 5 to move towards the center position. When the clamping wheels 8 provided on the first support plate 4 and the second support plate 5 contact and abut against the two sides of the workpiece, the first support plate 4 and the second support plate 5 move towards the center position. The support plate 5 continues to move, causing the L-shaped fixing rod 7 on the fixed column 6 to rotate. This allows the clamping wheel 8, which is rotatably mounted on the other end of the L-shaped fixing rod 7, to position and clamp the workpiece on the other two sides. At this time, the clamping wheel 8 at the top of each set of L-shaped fixing rods 7 can simultaneously clamp and fix the four corners of the square workpiece, thereby achieving center positioning of the workpiece and preventing the workpiece from shifting position. When it is necessary to release the workpiece, the cylinder 2 can be reversed to drive the first support plate 4 and the second support plate 5 to move away from the center of the processing table. Each set of L-shaped fixing rods 7 can be rotated and reset by the spring 15 fixedly installed between the first connecting rod 13 and the second connecting rod 14.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vertical machining center positioning fixture, characterized by, The utility model relates to processing platform (1) and the cylinder (2) of fixed installation in the bottom of processing platform (1) inner chamber, the bottom of processing platform (1) is provided with first support plate (4) and second support plate (5), and first support plate (4) and second support plate (5) are symmetrically distributed, The top of first support plate (4) and second support plate (5) is fixedly installed with two groups of fixed column (6), and the top of two groups of fixed column (6) is rotatably installed with L-shaped fixed rod (7), and the top of two groups of L-shaped fixed rod (7) is rotatably installed with two groups of clamping wheel (8). Wherein the bottom of first support plate (4) is provided with driving part, and driving part is also arranged in the inside of processing platform (1). Driving part includes the top plate (3) of first support plate (4) bottom, and one side of top plate (3) is fixedly installed in one end of cylinder (2).

2. A positioning fixture for a vertical machining center according to claim 1, characterized in that, The top of processing platform (1) is rotatably installed with rotating rod (11), and the both ends of rotating rod (11) are rotatably installed with push-pull rod (12).

3. A positioning fixture for a vertical machining center according to claim 2, characterized in that, The end of two groups of push-pull rod (12) away from rotating rod (11) is rotatably installed in the bottom of first support plate (4) and second support plate (5) respectively, and two groups of push-pull rod (12) are parallelly arranged.

4. A positioning fixture for a vertical machining center according to claim 3, characterized in that, The top of first support plate (4) and second support plate (5) is fixedly installed with two groups of sliding sleeve (10), and the inner chamber side wall of two groups of sliding sleeve (10) is slidably installed with slide rail (9), and the top of slide rail (9) is fixedly installed in the top of processing platform (1) inner chamber.

5. A positioning fixture for a vertical machining center according to claim 4, characterized in that, The top of first support plate (4) and second support plate (5) is fixedly installed with two groups of first connecting rod (13), and the top of two groups of first connecting rod (13) is fixedly installed with spring (15), and the end of two groups of spring (15) away from first connecting rod (13) is fixedly installed with second connecting rod (14), and the top of two groups of second connecting rod (14) is fixedly installed in the bottom of L-shaped fixed rod (7).

6. A positioning fixture for a vertical machining center according to claim 5, characterized in that, ​

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