A fixture for a CNC machining center

Abstract

This utility model relates to the field of CNC machining center fixture technology, and discloses a fixture for CNC machining centers, including a housing. A support rod is fixedly connected to the left side of the housing, and a clamping mechanism is provided on the left side of the support rod. A moving mechanism is provided on the right side of the housing, and a laser positioning mechanism is provided on the top of the housing. The moving mechanism is provided inside the housing, and an auxiliary mechanism is provided in the middle of the outer side of the housing. A limit mechanism is provided on the rear side of the housing, and a fixing mechanism is provided on the front side of the clamping mechanism. The clamping mechanism includes a first fixing post, the right side of which is fixedly connected to the left side of the support rod, and a second fixing post, which is fixedly connected to the left side of the first fixing post. This utility model achieves a linkage structure between the gripper, spring, and slide, enabling the fixture to adaptively clamp workpieces of various specifications without frequent replacement of fixture components, thus reducing debugging time.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining center fixture technology, and in particular to a fixture for CNC machining centers. Background Technology

[0002] CNC machining center fixtures are devices used to position and clamp workpieces on CNC machining equipment. By precisely constraining the workpiece's degrees of freedom, they ensure that the workpiece remains in a fixed position during machining, achieving high-precision and high-efficiency automated machining. They can adapt to workpieces of different shapes and sizes. The hydraulic clamping mechanism uses a hydraulic cylinder to drive the pressure plate, applying uniform pressure to the workpiece to ensure that the workpiece does not shift during machining. The fixtures are suitable for batch machining of small and medium-sized shaft and disc parts. By quickly changing the positioning elements and adjusting the clamping parameters, different types of workpieces can be quickly clamped, significantly improving equipment utilization.

[0003] A search revealed Chinese patent publication number CN221696132U, which discloses a special fixture for CNC machining centers, including a connecting assembly comprising a docking seat, a locking block, a locking groove, and a fixing bolt. The docking seat and the connecting rod are fixedly connected by welding. The docking seat contains a movable connecting rod.

[0004] The fixture is equipped with a locking block, and each side plate of the locking block has a locking groove. Multiple fixing bolts are installed on the side plate of the docking seat, with one end of each bolt extending into the groove. The docking seat and the locking block form a locking structure, allowing the clamping seat fixedly connected to the other side plate of the locking block to be detached and reassembled with the connecting rod. This special fixture for the CNC machining center, through the setting of the connecting components, allows the clamping seat to be disassembled and installed with the connecting rod. The disassembled clamping seat can be easily repaired and maintained. When the clamping seat is damaged beyond repair, it can be replaced, avoiding the need for complete replacement after the clamping seat is damaged beyond repair. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fixture for CNC machining centers, aiming to improve the problem of poor applicability of existing fixtures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixture for a CNC machining center, comprising a housing, a support rod fixedly connected to the left side of the housing, a clamping mechanism provided on the left side of the support rod, a moving mechanism provided on the right side of the housing, a laser positioning mechanism provided on the top of the housing, a moving mechanism provided inside the housing, an auxiliary mechanism provided in the middle of the outer side of the housing, a limiting mechanism provided on the rear side of the housing, and a fixing mechanism provided on the front side of the clamping mechanism. The clamping mechanism includes a first fixing post, the right side of which is fixedly connected to the left side of the support rod, and a second fixing post fixedly connected to the left side of the first fixing post. Two fixing discs are fixedly connected to the inner side of the second fixing post, and multiple fixing rods are slidably connected inside the two fixing discs. Multiple fixing plates are fixedly connected to the right side of the second fixing post. Multiple springs are slidably connected to the outer wall of each fixing rod, and multiple limiting plates are fixedly connected to the right side of each spring. Multiple sliding grooves are opened on the inner side of the first fixing post, and multiple limiting plates are slidably connected to the inner side of the corresponding sliding grooves.

[0007] Through the above technical solution: the workpiece is placed in the corresponding position of the clamping mechanism, and multiple fixing rods are subjected to external forces applied by the workpiece. Since the fixing rods are slidably connected to the two fixing discs inside the second fixing column on the left side, and simultaneously slide within multiple grooves opened on the inner side of the first fixing column, the fixing rods will slide within the grooves under the action of external forces, moving along the direction between the first and second fixing columns. The fixing plates limit the springs, and during the sliding process, the fixing rods will compress the multiple springs sleeved on their outer walls. After being subjected to force, the springs will undergo elastic deformation and generate a reverse elastic force. When the fixing rods move to a certain position, the elastic force generated by the springs will be evenly applied to the workpiece through the multiple limiting plates connected to the right side of the fixing rods. The multiple fixing rods, in conjunction with the elastic force of the springs, apply pressure to the workpiece from different directions, thereby achieving a stable clamping of the workpiece.

[0008] As a further description of the above technical solution:

[0009] The laser positioning mechanism includes a controller, the bottom of which is fixedly connected to the top of the housing. A telescopic component is provided on the top of the controller, and a support is provided on the top of the telescopic component. A rotatable rotator is rotatably connected to the bottom left side of the support, and a rotating shaft is fixedly connected to the bottom of the rotator. A laser sensing head is fixedly connected to the bottom of the rotating shaft.

[0010] Through the above technical solution: At the start of operation, the controller 301 undertakes centralized control and data processing, receiving instructions from the machining center control, analyzing and processing them, and then sending control signals to other components. The telescopic component 302 is located on top of the controller 301, and the fixing block 3021 provides stable support for the entire telescopic structure. The support 303 is installed on top of the telescopic component 302, providing a support platform for the rotator 304. When horizontal positioning adjustment is required, the rotator 304 starts working. The rotator 304 is connected to the laser sensing head 306 through the rotating shaft 305 at the bottom. When the rotator 304 receives the rotation command from the controller 301, it will drive the rotating shaft 305 and the connected laser sensing head 306 to perform horizontal rotation adjustment. The combination of horizontal rotation function and vertical telescopic function enables the laser sensing head 306 to achieve all-round laser positioning detection. During operation, the laser sensing head 306 transmits the detected signals back to the controller 301. The controller 301 processes and analyzes the signals to ensure accurate positioning of the workpiece.

[0011] As a further description of the above technical solution:

[0012] The telescopic assembly includes a fixed block, the bottom of which is fixedly connected to the top of the controller, and a telescopic rod one is fixedly connected to the top of the fixed block. A telescopic rod two is slidably connected to the top of the telescopic rod one.

[0013] Through the above technical solution: when the controller issues a height adjustment command, telescopic rod one and telescopic rod two begin to work together, with telescopic rod two sliding on top of telescopic rod one.

[0014] As a further description of the above technical solution:

[0015] The moving mechanism includes a rolling column, the outer side of which is disposed on the inner side of the housing. Multiple fixed shafts are fixedly connected to the outer wall of the rolling column. Splines are rotatably connected to both ends of the fixed shafts. The two ends of the splines are fixedly connected to the front and rear sides of the inner side of the housing. A moving stage is provided on the top of the splines. Multiple grooves are fixedly connected to the top inner side of the moving stage.

[0016] Through the above technical solution: the moving mechanism starts to operate, the rolling column rolls inside the outer shell, and the fixed shaft fixedly connected to the outer wall drives the spline connected at both ends to rotate. The spline cooperates with the groove on the top of the inner side of the moving stage, so that the moving stage moves smoothly inside the outer shell.

[0017] As a further description of the above technical solution:

[0018] The auxiliary mechanism includes a support block, the rear side of which is fixedly connected to the front side of the outer shell, a movable block is fixedly connected to the left side of the support block, and a roller is slidably connected to the top inner side of the movable block.

[0019] Through the above technical solution: the roller of the auxiliary mechanism slides on the top of the inner side of the moving block, the support block is fixed on the front side of the outer shell to provide support for the roller, and the auxiliary clamp moves flexibly.

[0020] As a further description of the above technical solution:

[0021] The limiting mechanism includes a support frame, the front side of which is fixedly connected to the middle of the rear side of the outer shell. A limiter is fixedly connected to the top of the support frame. A limiter is slidably connected to the inner side of the limiter. A slide rod is fixedly connected to the bottom of the limiter. A limit block is fixedly connected to the bottom of the slide rod. An auxiliary rod is fixedly connected to the front and rear sides of the top of the limit block. The auxiliary rod passes through the front and rear sides of the interior of the support frame.

[0022] Through the above technical solution: the limiting mechanism plays a role, the support frame is fixed in the middle of the rear side of the shell, the limiter is on the top of the support frame, the slide rod and the limit block slide inside the limiter, and the auxiliary rod passes through the support frame to ensure the accuracy of the clamp's movement position.

[0023] As a further description of the above technical solution:

[0024] The fixing mechanism includes a connecting block, the rear side of which is fixedly connected to the inner side of the fixing column and slidably connected to a connecting rod, and the left side of the connecting rod is fixedly connected to a fixing device.

[0025] The above technical solution involves using a connecting block to connect the fixing column to the component. Based on the size of the workpiece and processing requirements, the position of the fixing device can be flexibly adjusted by sliding the connecting rod inside the connecting block. After adjustment, the fixing device is used to clamp the workpiece, thereby achieving auxiliary positioning of the workpiece and ensuring that the workpiece remains stable during processing.

[0026] As a further description of the above technical solution:

[0027] The bottom of the outer casing is provided with a base plate, and a baffle is fixedly connected to the top left side of the base plate.

[0028] The above technical solution provides support for the entire fixture, enhancing stability, while the baffle on the top left side of the base plate can block the workpiece and prevent it from shifting during processing.

[0029] This utility model has the following beneficial effects:

[0030] 1. This utility model improves the problem of poor applicability of fixtures. Through the linkage structure of the jaws, springs and slides, the fixture can adaptively clamp workpieces of various specifications without the need for frequent replacement of fixture components, reducing debugging time. The spring buffering effect avoids damage to the workpiece surface by rigid clamping, broadens the application scenarios of fixtures in the processing of complex shaped parts, and improves the versatility and processing efficiency of CNC machining centers.

[0031] 2. This utility model achieves precise detection and positioning of the workpiece position, improves the accuracy of workpiece clamping by the fixture, reduces manual debugging time, improves processing efficiency, and allows for flexible adjustment of detection height and angle to adapt to the positioning needs of workpieces of different sizes and shapes, enhancing the versatility of the fixture. Through real-time data feedback and automatic adjustment, it reduces the scrap rate caused by positioning errors and ensures processing accuracy and quality. Attached Figure Description

[0032] Figure 1 This is a perspective view of a fixture for a CNC machining center proposed in this utility model;

[0033] Figure 2 This is a front view of a fixture for a CNC machining center proposed in this utility model;

[0034] Figure 3 This is a cross-sectional view of a clamping mechanism for a CNC machining center according to the present invention.

[0035] Figure 4 This is a schematic diagram of the auxiliary mechanism of a fixture for a CNC machining center proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the laser positioning mechanism of a fixture for a CNC machining center proposed in this utility model;

[0037] Figure 6 This is a schematic diagram of the limiting mechanism of a fixture for a CNC machining center proposed in this utility model.

[0038] Legend:

[0039] 1. Outer shell; 2. Clamping mechanism; 201. Fixing post one; 202. Fixing post two; 203. Fixing plate; 204. Fixing rod; 205. Fixing piece; 206. Spring; 207. Limiting piece; 208. Slide groove; 3. Laser positioning mechanism; 301. Controller; 302. Telescopic assembly; 3021. Fixing block; 3022. Telescopic rod one; 3023. Telescopic rod two; 303. Support; 304. Rotator; 305. Rotating shaft; 306. Laser sensing head; 4. Moving mechanism; 401, rolling column; 402, fixed shaft; 403, spline; 404, moving table; 405, groove; 5, auxiliary mechanism; 501, support block; 502, moving block; 503, roller; 6, limiting mechanism; 601, support frame; 602, limiter; 603, slide bar; 604, limiting block; 605, auxiliary rod; 7, fixing mechanism; 701, connecting block; 702, connecting rod; 703, fixing device; 8, support rod; 9, base plate; 10, baffle. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a CNC machining center fixture, comprising a housing 1. A support rod 8 is fixedly connected to the left side of the housing 1, supporting and connecting a clamping mechanism 2. A moving mechanism 4 is provided on the right side of the housing 1, driving the fixture to move and position. A laser positioning mechanism 3 is provided on the top of the housing 1, accurately determining the machining position. The moving mechanism 4 is provided inside the housing 1, including a rolling column 401. The outer side of the rolling column 401 is located on the inner side of the housing 1. Multiple fixed shafts 402 are fixedly connected to the outer wall of the rolling column 401. Splines 403 are rotatably connected to both ends of the fixed shafts 402, and the two ends of the splines 403 are fixedly connected to the front and rear of the housing 1. On the side, a movable platform 404 is provided on the top of the spline 403. Multiple grooves 405 are fixedly connected to the top inner side of the movable platform 404. The moving mechanism 4 achieves smooth movement of the movable platform 404 through the rolling of the rolling column 401 and the cooperation of the spline 403. An auxiliary mechanism 5 is provided in the middle of the outer side of the outer shell 1. The auxiliary mechanism 5 includes a support block 501. The rear side of the support block 501 is fixedly connected to the front outer side of the outer shell 1. A movable block 502 is fixedly connected to the left side of the support block 501. A roller 503 is slidably connected to the top inner side of the movable block 502. The auxiliary mechanism 5 moves through the rolling auxiliary clamp of the roller 503, improving movement flexibility. A limiting mechanism 6 is provided on the rear side of the outer shell 1. The limiting mechanism 6 includes a support frame 601. The front side of the support frame 601 is fixedly connected to the middle of the rear side of the outer shell 1. The top of the support frame 601 is fixedly connected to the limiter 602. The inner side of the limiter 602 is slidably connected to the limiter 602. The bottom of the limiter 602 is fixedly connected to the slide rod 603. The bottom of the slide rod 603 is fixedly connected to the limit block 604. The front and rear sides of the top of the limit block 604 are fixedly connected to the auxiliary rods 605. The auxiliary rods 605 penetrate the front and rear sides of the interior of the support frame 601. This limiting mechanism 6 ensures the positional accuracy of the clamp during movement through the limiting action of the limit block 604. The front side of the clamping mechanism 2 is provided with a fixing mechanism 7. The clamping mechanism 2 includes a fixing post 201. The fixing post 201 is used to connect the support rod 8. The right side of the fixing post 201 is fixedly connected to the support rod 8. On the left side of the support rod 8, a second fixing column 202 is fixedly connected to the left side of the first fixing column 201. The second fixing column 202 is used to install and support the fixing plate 203. Two fixing plates 203 are fixedly connected to the inner side of the second fixing column 202. The two fixing plates 203 are used to provide sliding tracks and support for the fixing rod 204. Multiple fixing rods 204 are slidably connected inside each of the two fixing plates 203. The multiple fixing rods 204 are used to directly contact and clamp the workpiece. Multiple fixing plates 205 are fixedly connected to the right side of the second fixing column 202 on the left side. The multiple fixing plates 205 are used to limit the position of the spring 206 and provide support. Multiple springs 206 are slidably connected to the outer wall of the fixing rod 204. The multiple springs 206 are used to provide clamping force and buffering effect.Multiple limiting plates 207 are fixedly connected to the right side of multiple springs 206. These limiting plates 207 prevent the springs 206 from falling off and limit the sliding range of the fixing rods 204. Multiple sliding grooves 208 are formed on the inner side of the fixing post 201. The fixing rods 204 are slidably connected to the inner side of their respective sliding grooves 208. These sliding grooves 208 guide the sliding direction of the fixing rods 204 and provide a stable sliding path.

[0042] Specifically, when the CNC machining center starts working with the fixture, it is in a standby state. When it needs to move the fixture to the designated machining position, the moving mechanism 4 starts to operate. The rolling column 401 rolls inside the outer shell 1, and the fixed shaft 402, which is fixedly connected to the outer wall, drives the spline 403, which is rotated at both ends. The spline 403 cooperates with the groove 405 on the top inner side of the moving table 404, so that the moving table 404 moves smoothly inside the outer shell 1. The roller 503 of the auxiliary mechanism 5 slides on the top inner side of the moving block 502, and the support block 501 is fixed. On the front side of the outer casing 1, support is provided for the roller 503, allowing the auxiliary fixture to move flexibly. During the movement, the limiting mechanism 6 plays a role. The support frame 601 is fixed to the middle of the rear side of the outer casing 1, the limiter 602 is on top of the support frame 601, the slide rod 603 and the limiting block 604 slide inside the limiter 602, and the auxiliary rod 605 passes through the support frame 601 to ensure the accuracy of the fixture's movement position. When the fixture moves to the approximate position, the laser positioning mechanism 3 is activated, emitting a laser beam to accurately determine the processing position, providing precise processing. Referring to the above, after positioning, when the workpiece needs to be clamped, the workpiece is placed in the corresponding position of the clamping mechanism 2. Multiple fixing rods 204 will be subjected to external force applied by the workpiece. Since the fixing rods 204 are slidably connected to the two fixing discs 203 inside the left fixing column 202, and simultaneously slide within the multiple sliding grooves 208 opened inside the fixing column 1 201, the fixing rods 204 will slide within the sliding grooves 208 under the action of external force, moving along the direction between the fixing column 1 201 and the fixing column 202. The fixing plate 205... Spring 206 acts as a limit, while during the sliding process, the fixed rod 204 compresses multiple springs 206 on its outer wall. After being subjected to force, spring 206 undergoes elastic deformation and generates a reverse elastic force. When the fixed rod 204 moves to a certain position, the elastic force generated by spring 206 is applied evenly to the workpiece through multiple limiting plates 207 connected to the right side of the fixed rod 204. Multiple fixed rods 204, in conjunction with the elastic force of spring 206, apply pressure to the workpiece from different directions, thereby achieving a stable and tight clamping of the workpiece.

[0043] Reference Figure 1 , Figure 2 and Figure 3The laser positioning mechanism 3 includes a controller 301, the bottom of which is fixedly connected to the top of the housing 1, enabling centralized control and data processing of the laser positioning mechanism 3. A telescopic component 302 is provided on the top of the controller 301. The telescopic component 302 includes a fixing block 3021, the bottom of which is fixedly connected to the top of the controller 301, providing stable support for the telescopic rod. A first telescopic rod 3022 is fixedly connected to the top of the fixing block 3021, and a second telescopic rod 3023 is slidably connected to the top of the first telescopic rod 3022, enabling laser positioning. The sensing head 306 can be flexibly extended and retracted in the vertical direction to adapt to processing needs at different heights. A support 303 is provided on the top of the telescopic component 302 to provide a stable support platform for the rotator 304. The rotator 304 is rotatably connected to the bottom left side of the support 303, which drives the laser sensing head 306 to rotate and adjust in the horizontal direction. A rotating shaft 305 is fixedly connected to the bottom of the rotator 304, and the laser sensing head 306 is fixedly connected to the bottom of the rotating shaft 305, realizing all-round laser positioning and detection, and ensuring the machining center's accurate positioning and processing of the workpiece.

[0044] Specifically, at the start of operation, the controller 301 undertakes the important task of centralized control and data processing, receiving instructions from the machining center control, analyzing and processing them, and then sending control signals to other components. The telescopic assembly 302 is located on top of the controller 301, and the fixing block 3021 provides stable support for the entire telescopic structure. When the controller 301 issues a height adjustment command, telescopic rod one 3022 and telescopic rod two 3023 begin to work together. Telescopic rod two 3023 slides on top of telescopic rod one 3022, realizing the flexible telescopic adjustment of the laser sensing head 306 in the vertical direction. The support 303 is installed on top of the telescopic assembly 302, providing support for the rotator 30. 4. A support platform is provided. When horizontal positioning adjustments are required, the rotator 304 starts working. The rotator 304 is connected to the laser sensing head 306 via the bottom rotating shaft 305. When the rotator 304 receives a rotation command from the controller 301, it will drive the rotating shaft 305 and the connected laser sensing head 306 to perform horizontal rotation adjustment. The combination of horizontal rotation function and vertical extension function enables the laser sensing head 306 to achieve all-round laser positioning detection. During operation, the laser sensing head 306 will transmit the detected signal back to the controller 301. The controller 301 processes and analyzes the signal to ensure accurate positioning of the workpiece.

[0045] Reference Figure 1 , Figure 5 and Figure 6The rear side of the connecting block 701 is fixedly connected to the front side of the fixed column 201. The connecting block 701 serves to connect the fixed column 201 and the component, ensuring the stability of the overall structure. The inner side of the connecting block 701 is slidably connected to the connecting rod 702. The connecting rod 702 slides within the connecting block 701 to adjust the position of the fixture 703. The left side of the connecting rod 702 is fixedly connected to the fixture 703. The fixture 703 is used to fix the workpiece and achieve auxiliary positioning and clamping of the workpiece. The bottom of the outer shell 1 is provided with a base plate 9. The base plate 9 provides support for the entire fixture and enhances the stability of the fixture on the worktable. The top left side of the base plate 9 is fixedly connected to a baffle 10. The baffle 10 blocks the workpiece and prevents displacement during processing.

[0046] Specifically, the fixing post 201 is connected to the component using the connecting block 701. According to the size of the workpiece and the processing requirements, the position of the fixing device 703 is flexibly adjusted by sliding the connecting rod 702 inside the connecting block 701. After adjustment, the fixing device 703 is used to clamp the workpiece to achieve auxiliary positioning of the workpiece and ensure that the workpiece remains stable during processing. The base plate 9 provides support for the entire fixture and enhances stability. The baffle 10 on the top left side of the base plate 9 can block the workpiece and prevent the workpiece from shifting during processing, so that the fixture can efficiently and reliably complete the workpiece fixing and processing assistance work.

[0047] Working Principle: When the CNC machining center starts working with a fixture, and it needs to be moved to a designated machining position, the moving mechanism 4 starts operating. The rolling column 401 rolls inside the outer shell 1, and the fixed shaft 402 connected to the outer wall drives the spline 403 connected at both ends to rotate. The spline 403 cooperates with the groove 405 on the top inner side of the moving table 404, so that the moving table 404 moves smoothly inside the outer shell 1. The roller 503 of the auxiliary mechanism 5 slides on the top inner side of the moving block 502, and the support block 501 provides support for the roller 503, allowing the auxiliary fixture to move flexibly. During the movement, the limiting mechanism 6 plays a role. The support frame 601 is fixed to the middle of the rear side of the outer shell 1, the limiter 602 is on the top of the support frame 601, the slide rod 603 and the limit block 604 slide inside the limiter 602, and the auxiliary rod 605 passes through the support frame 601 to ensure the accuracy of the fixture's movement position. When the fixture moves to approximately After positioning, the laser positioning mechanism 3 is activated. By emitting a laser beam, it accurately determines the processing position and provides a precise reference for processing. After positioning, when it is necessary to clamp the workpiece, the workpiece is placed in the corresponding position of the clamping mechanism 2. Multiple fixing rods 204 will be subjected to external force applied by the workpiece. Under the action of external force, the fixing rods 204 will slide in the slide groove 208 and move along the direction between the first fixing post 201 and the second fixing post 202. During the sliding process, the fixing rods 204 will compress multiple springs 206 sleeved on their outer wall. After being subjected to force, the springs 206 will undergo elastic deformation and generate a reverse elastic force. When the fixing rods 204 move to a certain position, the elastic force generated by the springs 206 will be applied evenly to the workpiece through the limiting piece 207. Multiple fixing rods 204, in conjunction with the elastic force of the springs 206, apply pressure to the workpiece from different directions, thereby achieving a stable clamping of the workpiece.

[0048] At the start of operation, the controller 301 receives instructions from the machining control system. After analysis and processing, it sends control signals to the components. The telescopic component 302 is located on top of the controller 301, and the fixing block 3021 provides stable support for the entire telescopic structure. When the controller 301 issues a height adjustment command, telescopic rod one 3022 and telescopic rod two 3023 begin to work together to achieve flexible telescopic adjustment of the laser sensing head 306 in the vertical direction. The support 303 is installed on top of the telescopic component 302, providing a support platform for the rotator 304. When horizontal positioning adjustment is required, the rotator 304 starts to work. When the rotator 304 receives a rotation command from the controller 301, it drives the rotating shaft 305 and the connected laser sensing head 306 to perform horizontal rotation adjustment, enabling the laser sensing head 306 to achieve omnidirectional laser positioning detection. During operation, the laser sensing head 306 transmits the detected signals back to the controller 301. The controller 301 processes and analyzes the signals to ensure accurate positioning of the workpiece.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for a CNC machining center, comprising a housing (1), characterized in that: A support rod (8) is fixedly connected to the left side of the outer shell (1). A clamping mechanism (2) is provided on the left side of the support rod (8). A moving mechanism (4) is provided on the right side of the outer shell (1). A laser positioning mechanism (3) is provided on the top of the outer shell (1). A moving mechanism (4) is provided inside the outer shell (1). An auxiliary mechanism (5) is provided in the middle of the outer side of the outer shell (1). A limit mechanism (6) is provided on the rear side of the outer shell (1). A fixing mechanism (7) is provided on the front side of the clamping mechanism (2). The clamping mechanism (2) includes a first fixed post (201), the right side of which is fixedly connected to the left side of the support rod (8), and a second fixed post (202) fixedly connected to the left side of the first fixed post (201). Two fixed discs (203) are fixedly connected to the inner side of the second fixed post (202). Multiple fixed rods (204) are slidably connected inside the two fixed discs (203). Multiple fixed pieces (205) are fixedly connected to the right side of the second fixed post (202) on the left side. Multiple springs (206) are slidably connected to the outer wall of the fixed rods (204). Multiple limiting pieces (207) are fixedly connected to the right side of the multiple springs (206). Multiple sliding grooves (208) are opened on the inner side of the first fixed post (201), and the multiple (204) are slidably connected to the inner side of the corresponding sliding grooves (208).

2. A fixture for a CNC machining center according to claim 1, characterized in that: The laser positioning mechanism (3) includes a controller (301), the bottom of which is fixedly connected to the top of the housing (1). A telescopic component (302) is provided on the top of the controller (301), and a support (303) is provided on the top of the telescopic component (302). A rotator (304) is rotatably connected to the bottom left side of the support (303). A rotating shaft (305) is fixedly connected to the bottom of the rotator (304), and a laser sensing head (306) is fixedly connected to the bottom of the rotating shaft (305).

3. A fixture for a CNC machining center according to claim 2, characterized in that: The telescopic component (302) includes a fixed block (3021), the bottom of which is fixedly connected to the top of the controller (301), and a telescopic rod one (3022) is fixedly connected to the top of the fixed block (3021). A telescopic rod two (3023) is slidably connected to the top of the telescopic rod one (3022).

4. A fixture for a CNC machining center according to claim 1, characterized in that: The moving mechanism (4) includes a rolling column (401), the outer side of which is disposed on the inner side of the outer shell (1). Multiple fixed shafts (402) are fixedly connected to the outer wall of the rolling column (401). Splines (403) are rotatably connected to both ends of the fixed shafts (402). Both ends of the splines (403) are fixedly connected to the front and rear sides of the inner side of the outer shell (1). A moving stage (404) is provided on the top of the splines (403). Multiple grooves (405) are fixedly connected to the top inner side of the moving stage (404).

5. A fixture for a CNC machining center according to claim 1, characterized in that: The auxiliary mechanism (5) includes a support block (501), the rear side of which is fixedly connected to the front side of the outer shell (1), and a moving block (502) is fixedly connected to the left side of the support block (501). A roller (503) is slidably connected to the top inner side of the moving block (502).

6. A fixture for a CNC machining center according to claim 1, characterized in that: The limiting mechanism (6) includes a support frame (601), the front side of which is fixedly connected to the middle of the rear side of the outer shell (1). A limiter (602) is fixedly connected to the top of the support frame (601), and a limiter (602) is slidably connected to the inner side of the limiter (602). A slide rod (603) is fixedly connected to the bottom of the limiter (602), and a limit block (604) is fixedly connected to the bottom of the slide rod (603). An auxiliary rod (605) is fixedly connected to the front and rear sides of the top of the limit block (604), and the auxiliary rod (605) passes through the front and rear sides of the inside of the support frame (601).

7. A fixture for a CNC machining center according to claim 1, characterized in that: The fixing mechanism (7) includes a connecting block (701), the rear side of which is fixedly connected to the front side of the fixing column (201), the inner side of which is slidably connected to a connecting rod (702), and the left side of which is fixedly connected to a fixing device (703).

8. A fixture for a CNC machining center according to claim 4, characterized in that: The bottom of the outer shell (1) is provided with a base plate (9), and a baffle (10) is fixedly connected to the top left side of the base plate (9).

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