Numerical control four-axis rotary table positioning structure

Abstract

The utility model provides a numerical control four -axis rotary table positioning structure belongs to four -axis rotary table technical field, including table bed, positioning subassembly and adjusting assembly, the surface of table bed is installed with tailstock, the utility model discloses: through being equipped with adjusting assembly, the bottom of table bed is installed with C type support, the inside of C type support rotatory mounting has the screw rod, and the screw rod rotates after the step motor rotates, and the surface adjusting block is removed to the screw rod rotation, and the limiting block of adjusting block surface both sides slides on the surface of limiting slide bar, so that the screw rod rotates after adjusting block and moves the fixed plate of top, and the fixed plate removal drives the adjusting frame to adjust relative table bed, thereby makes four -axis rotary table adjust relative table bed, need not to dismantle the bolt and adjust, reduces operation time and improves processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of four-axis rotary table technology, specifically a positioning structure for a CNC four-axis rotary table. Background Technology

[0002] A four-axis rotary table is a device used to fix and rotate workpieces. It typically consists of four axes, enabling rotation and positioning in multiple directions, thus facilitating machining, inspection, or assembly processes. Fixtures are used to fix the workpiece, improving machining accuracy and efficiency. Traditional three-axis CNC machine tools only have three linear displacement axes: X, Y, and Z. Workpiece machining requires multiple clamping and positioning operations, which can easily lead to the accumulation of positioning errors and limited machining accuracy. Four-axis machining centers, by adding rotary axes, achieve 360° rotation and positioning of the workpiece, enabling complex operations such as oblique hole machining and curved surface milling. However, existing four-axis rotary tables are usually positioned on the machine tool surface using bolts during installation and positioning. This requires removing the bolts and repositioning the four-axis rotary table after adjustment, which consumes a lot of time and affects machining efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a positioning structure for a CNC four-axis rotary table to solve the problems mentioned in the background.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a CNC four-axis rotary table positioning structure, comprising a table, a positioning assembly, and an adjustment assembly; Wherein: a tailstock is mounted on the surface of the bed, and a four-axis rotary table is provided at one end of the bed; The positioning assembly includes a mounting bracket set at one end of the table, the surface of the mounting bracket having several mounting grooves, a movable block being slidably mounted inside the mounting grooves, a bolt post being fixedly mounted on the top of the movable block, a positioning pressure block being inserted through the surface of the bolt post, a mounting plate being mounted at the bottom of the four-axis rotary table, the positioning pressure block being pressed onto the top of the mounting plate, and a fixing nut being threadedly connected to the top of the bolt post, the fixing nut contacting and locking with the positioning pressure block; The adjustment assembly includes a C-shaped bracket rotatably mounted on the bottom of the bed, a lead screw rotatably mounted on the inner side of the C-shaped bracket, a stepper motor fixedly mounted on the surface of the C-shaped bracket, the output end of the stepper motor being fixedly connected to one end of the lead screw, an adjustment block being threadedly connected to the surface of the lead screw, a fixing plate being mounted on the top of the adjustment block, and a mounting bracket being mounted on the top of the fixing plate.

[0005] As a preferred embodiment of this utility model: guide rails are fixedly installed on both sides of the surface of the fixing plate, and sliders are fixedly installed at both ends of the top of the mounting bracket. The sliders are slidably installed on the surface of the guide rails, and locking handles are installed on the surface of the sliders at both ends.

[0006] As a preferred embodiment of this utility model: limit blocks are fixedly installed on both sides of the surface of the movable block, and limit slide rods are fixedly installed on both sides of the C-shaped bracket, with the limit blocks slidably installed on the surface of the limit slide rods.

[0007] As a preferred embodiment of this utility model: the surface of the positioning block is provided with an adjustment hole, and the bolt is inserted into the adjustment hole.

[0008] As a preferred embodiment of this utility model, damping blocks are fixedly installed at both ends of the guide rail.

[0009] As a preferred embodiment of this utility model, a distance measuring sensor is installed on one side of the mounting bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) Several mounting slots are provided on the surface of the mounting frame. A movable block is slidably installed inside the mounting slot. A bolt column is installed on the top of the movable block. A positioning pressure block is slidably installed on the surface of the bolt column. The movable block drives the positioning pressure block on the surface of the bolt column to slide inside the mounting slot, so that the positioning pressure block is close to the mounting plate at the bottom of the four-axis turntable. By pressing the positioning pressure block tightly against the top of the mounting plate, the four-axis turntable is positioned and installed by tightening the fixing nut. (2) With the provided adjustment components, a C-shaped bracket is installed at the bottom of the table. A lead screw is rotatably installed on the inner side of the C-shaped bracket. After the stepper motor rotates, it drives the lead screw to rotate. The rotation of the lead screw drives the adjustment block on the surface to move. The limit blocks on both sides of the adjustment block slide on the surface of the limit slide rod, so that after the lead screw rotates, the adjustment block drives the top fixed plate to move. The movement of the fixed plate drives the mounting frame to adjust relative to the table, thereby allowing the four-axis rotary table to be adjusted relative to the table without the need to remove the bolts for adjustment, reducing operation time and improving processing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the positioning component structure of this utility model; Figure 3 This is a schematic diagram of the adjustment component structure of this utility model; Figure 4 This is a schematic diagram of the slider mounting structure of this utility model.

[0012] In the diagram: 1. Machine bed; 2. Tailstock; 3. Four-axis rotary table; 4. Positioning component; 41. Mounting bracket; 42. Mounting slot; 43. Moving block; 44. Bolt post; 45. Positioning clamping block; 46. Mounting plate; 47. Fixing nut; 5. Adjustment assembly; 51. C-shaped bracket; 52. Lead screw; 53. Stepper motor; 54. Adjustment block; 55. Fixing plate; 6. Guide rail; 7. Slider; 8. Locking handle; 9. Limit block; 0. Limiting slide bar; 11. Adjustment hole; 12. Damping block; 13. Distance sensor. Detailed Implementation

[0013] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] Please see Figure 1 - Figure 4 A CNC four-axis rotary table positioning structure includes: a table 1, a positioning component 4, and an adjustment component 5; a tailstock 2 is mounted on the surface of the table 1, and a four-axis rotary table 3 is provided at one end of the table 1; Please see Figure 1 , Figure 2 The positioning component 4 includes a mounting bracket 41 disposed at one end of the table 1. The surface of the mounting bracket 41 is provided with several mounting grooves 42. A movable block 43 is slidably installed inside the mounting groove 42. A bolt post 44 is fixedly installed on the top of the movable block 43. A positioning pressure block 45 is inserted through the surface of the bolt post 44. A mounting plate 46 is installed at the bottom of the four-axis rotary table 3. The positioning pressure block 45 is pressed onto the top of the mounting plate 46. A fixing nut 47 is threadedly connected to the top of the bolt post 44. The fixing nut 47 contacts and locks the positioning pressure block 45.

[0015] In practical use: Several mounting grooves 42 are provided on the surface of the mounting bracket 41. A movable block 43 is slidably installed inside the mounting groove 42. A bolt post 44 is installed on the top of the movable block 43. A positioning pressure block 45 is slidably installed on the surface of the bolt post 44. The movable block 43 drives the positioning pressure block 45 on the surface of the bolt post 44 to slide inside the mounting groove 42, so that the positioning pressure block 45 is close to the mounting plate 46 at the bottom of the four-axis rotary table 3. By pressing the positioning pressure block 45 tightly against the top of the mounting plate 46, the four-axis rotary table 3 is positioned and installed by tightening the fixing nut 47.

[0016] Please see Figure 1 , Figure 3The adjustment assembly 5 includes a C-shaped bracket 51 rotatably mounted on the bottom of the bed 1. A lead screw 52 is rotatably mounted on the inner side of the C-shaped bracket 51. A stepper motor 53 is fixedly mounted on the surface of the C-shaped bracket 51. The output end of the stepper motor 53 is fixedly connected to one end of the lead screw 52. An adjustment block 54 is threadedly connected to the surface of the lead screw 52. A fixing plate 55 is mounted on the top of the adjustment block 54. A mounting bracket 41 is mounted on the top of the fixing plate 55. Limit blocks 9 are fixedly mounted on both sides of the surface of the moving block 43. Limit slide rods 10 are fixedly mounted on both sides of the C-shaped bracket 51. The limit blocks 9 are slidably mounted on the surface of the limit slide rods 10.

[0017] In practical use: A C-shaped bracket 51 is installed at the bottom of the table 1. A lead screw 52 is rotatably installed on the inner side of the C-shaped bracket 51. After the stepper motor 53 rotates, it drives the lead screw 52 to rotate. The rotation of the lead screw 52 drives the adjustment block 54 on the surface to move. The limit blocks 9 on both sides of the surface of the adjustment block 54 slide on the surface of the limit slide rod 10, so that after the lead screw 52 rotates, the adjustment block 54 drives the top fixing plate 55 to move. The movement of the fixing plate 55 drives the mounting frame 41 to adjust relative to the table 1, thereby allowing the four-axis rotary table 3 to be adjusted relative to the table 1 without the need to remove the bolts for adjustment, reducing operation time and improving processing efficiency.

[0018] Please see Figure 3 , Figure 4 Guide rails 6 are fixedly installed on both sides of the surface of the fixed plate 55, and sliders 7 are fixedly installed at both ends of the top of the mounting bracket 41. The sliders 7 are slidably installed on the surface of the guide rails 6, and locking handles 8 are installed on the surface of both ends of the sliders 7.

[0019] In practical use: guide rails 6 are fixedly installed on both sides of the surface of the fixed plate 55, and sliders 7 are fixedly installed at both ends of the top of the mounting bracket 41. The sliders 7 are slidably installed on the surface of the guide rails 6. The mounting bracket 41 is adjusted by sliding the sliders 7 at the bottom along the guide rails 6 on the surface of the fixed plate 55, so as to adjust the position of the four-axis rotary table 3 relative to the table 1. The locking handles 8 installed on the surface of the sliders 7 are convenient for locking the sliders 7.

[0020] Please see Figure 2 The surface of the positioning block 45 is provided with an adjustment hole 11, and the bolt post 44 is inserted inside the adjustment hole 11.

[0021] In practical use: The surface of the positioning block 45 is provided with an adjustment hole 11. The contact surface between the positioning block 45 and the mounting plate 46 can be adjusted through the adjustment hole 11, so as to be suitable for pressing and fixing mounting plates 46 of different sizes.

[0022] Please see Figure 4 Damping blocks 12 are fixedly installed at both ends of the guide rail 6.

[0023] In actual use: The damping blocks 12 installed at both ends of the guide rail 6 limit the sliding adjustment range of the mounting bracket 41 on the surface of the fixed plate 55.

[0024] Please see Figure 4 A distance sensor 13 is installed on one side of the mounting bracket 41.

[0025] In practical use: The detection end of the distance sensor 13 installed on one side of the mounting bracket 41 corresponds to one end of the table bed 1. When the four-axis rotary table 3 is close to the table bed 1 for adjustment, it plays a distance measuring role and avoids collision between the mounting bracket 41 and the table bed 1.

[0026] Several mounting slots 42 are formed on the surface of the mounting bracket 41. A movable block 43 is slidably installed inside the mounting slot 42. A bolt post 44 is installed on the top of the movable block 43. A positioning pressure block 45 is slidably installed on the surface of the bolt post 44. The movable block 43 drives the positioning pressure block 45 on the surface of the bolt post 44 to slide inside the mounting slot 42, thereby bringing the positioning pressure block 45 close to the mounting plate 46 at the bottom of the four-axis rotary table 3. By pressing the positioning pressure block 45 tightly against the top of the mounting plate 46, and tightening the fixing nut 47, the four-axis rotary table 3 is positioned and installed. After installation, when subsequent adjustments to the position are needed, the stepper motor 53 is controlled to rotate, which drives the lead screw 52 to rotate. The rotation of the lead screw 52 causes the adjustment block 54 on the surface to move. The limit blocks 9 on both sides of the adjustment block 54 slide on the surface of the limit slide rod 10, so that after the lead screw 52 rotates, the adjustment block 54 drives the top fixing plate 55 to move. The movement of the fixing plate 55 causes the mounting frame 41 to adjust relative to the table 1, thereby allowing the four-axis rotary table 3 to be adjusted relative to the table 1 without the need to remove the bolts for adjustment, reducing operation time and improving processing efficiency.

[0027] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning structure for a CNC four-axis rotary table, characterized in that, include: A bench bed (1) is provided with a tailstock (2) on its surface and a four-axis rotary table (3) at one end of the bench bed (1). The positioning component (4) includes a mounting bracket (41) set at one end of the table (1). The surface of the mounting bracket (41) is provided with several mounting grooves (42). A moving block (43) is slidably installed inside the mounting groove (42). A bolt column (44) is fixedly installed on the top of the moving block (43). A positioning pressure block (45) is inserted through the surface of the bolt column (44). A mounting plate (46) is installed at the bottom of the four-axis rotary table (3). The positioning pressure block (45) is pressed onto the top of the mounting plate (46). A fixing nut (47) is threadedly connected to the top of the bolt column (44). The fixing nut (47) contacts and locks the positioning pressure block (45). Adjustment component (5), the adjustment component (5) includes a C-shaped bracket (51) rotatably mounted on the bottom end of the bed (1), a lead screw (52) rotatably mounted on the inner side of the C-shaped bracket (51), a stepper motor (53) fixedly mounted on the surface of the C-shaped bracket (51), the output end of the stepper motor (53) is fixedly connected to one end of the lead screw (52), an adjustment block (54) is threadedly connected to the surface of the lead screw (52), a fixing plate (55) is mounted on the top of the adjustment block (54), and a mounting bracket (41) is mounted on the top of the fixing plate (55).

2. The positioning structure of the CNC four-axis rotary table according to claim 1, characterized in that: Guide rails (6) are fixedly installed on both sides of the surface of the fixed plate (55), and sliders (7) are fixedly installed at both ends of the top of the mounting bracket (41). The sliders (7) are slidably installed on the surface of the guide rails (6), and locking handles (8) are installed on the surface of the sliders (7) at both ends.

3. The positioning structure of the CNC four-axis rotary table according to claim 1, characterized in that: Limiting blocks (9) are fixedly installed on both sides of the surface of the movable block (43), and limiting slide rods (10) are fixedly installed on both sides of the C-shaped bracket (51). The limiting blocks (9) are slidably installed on the surface of the limiting slide rods (10).

4. The positioning structure of the CNC four-axis rotary table according to claim 1, characterized in that: The surface of the positioning block (45) is provided with an adjustment hole (11), and the bolt post (44) is inserted inside the adjustment hole (11).

5. The positioning structure of the CNC four-axis rotary table according to claim 2, characterized in that: Damping blocks (12) are fixedly installed at both ends of the guide rail (6).

6. The positioning structure of the CNC four-axis rotary table according to claim 1, characterized in that: A distance sensor (13) is mounted on one side of the mounting bracket (41).

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