CNC machining jig for metal structure

Abstract

The utility model relates to the technical field of CNC machining jigs, and discloses a metal structure CNC machining jig which is characterized in that a position correcting table and a fixing seat are arranged on the upper surfaces of two mounting seats respectively, an air cylinder is mounted on the outer wall of one side of the top of the position correcting table, rotating blocks are rotationally connected to the inner walls of the two sides of the position correcting table, one end of each rotating block extends to the outer portion of the position correcting table, and the other end of each rotating block extends to the outer portion of the fixing seat; and a bolt is inserted into the inner wall, close to a tooth groove of the tooth groove rotating block, of the position correcting table. Through the arrangement of the clamping blocks, the tooth groove rotating blocks and the plug pins, the front ends of the clamping blocks are driven by the tail ends to rotate downwards to clamp and fix a workpiece, when the clamping blocks need to be stably fixed, the rotating blocks rotate to drive the tooth groove rotating blocks at one end to rotate together, the plug pins are inserted into the position correcting table to be fixed, and the plug pins are fixed to the inner walls of the tooth groove rotating blocks; therefore, the tooth groove rotating block drives the rotating block, the clamping block and the like to be fixed together, and the workpiece clamping stability of the clamping assembly is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining fixtures and equipment, and particularly relates to a CNC machining fixture for a metal structure. Background Art

[0002] At present, the preparation and machining of the metal shells of mobile terminal devices (such as mobile phones, tablet computers, MP3 / MP4 players, dedicated terminal readers) are usually completed by CNC (Computer Numerical Control, computerized numerical control machine tools). The CNC machine tool control system logically processes a program with control codes or other symbolic instructions, decodes it through a computer, so that the CNC machine tool executes the specified actions, and the blank is machined into a finished workpiece part by cutting with a tool.

[0003] The patent application number is CN201620827670.5, which discloses a CNC machining device for a metal shell, including a base, a fixture body and a workpiece to be machined. The workpiece to be machined is inserted outside the fixture body. A plurality of through holes are equidistantly distributed on the front and rear side walls of the fixture body. The through holes are the same as the limit holes at the corresponding positions of the workpiece to be machined. Fixed blocks are installed at the corresponding positions of the through holes, and the distance between adjacent through holes is consistent with the height of the product. Equal-height cutting grooves are provided on the outer sides of the four circumferences at the upper end of the fixture body. The top end of the fixture body is cut into four identical parts along its diagonal direction. A tapered counterbore is vertically provided in the middle of the top end of the fixture body, and a positioning bolt is installed in the tapered counterbore. The CNC machining device for the metal shell provided by the utility model relies on bolts to position from the middle and expand and fix the workpiece to be machined around. The structure is simple, the clamping is convenient, the positioning is accurate, the problem that the fixture causes the workpiece to deform is avoided, the qualified rate of the product is improved, and the production cost is reduced.

[0004] The CNC machining device for a metal shell disclosed in the above document has the following defects: when the device performs cutting machining on the metal shell, the device fixes the shell by positioning from the middle with bolts and expanding around. When the shell to be machined has different shapes, the fixture part of the device is a fixed structure, and the positioning bolt and the fixture can only fix the upper and lower ends of the workpiece. The fixture that does not match the workpiece cannot limit and fix the periphery of the workpiece, and cannot work stably during cutting machining. Therefore, the fixture cannot clamp and fix workpieces of different specifications, reducing the flexibility of the device.

[0005] It can be seen from this that the existing CNC machining device does not have the function of stably clamping workpieces of different models, and it is necessary to improve the existing deficiencies to provide a function of stably clamping workpieces of different models. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a metal structure CNC machining jig to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a metal structure CNC machining fixture, comprising a moving component, a steering component and a clamping component, wherein the steering component is mounted on the upper surface of the moving component, the clamping component is mounted on the upper surface of the steering component, the clamping component comprises two mounting seats, the upper surfaces of the two mounting seats are respectively provided with a correction platform and a fixed seat, a cylinder is mounted on an outer wall on one side of the top of the correction platform, rotating blocks are rotatably connected on the inner walls on both sides of the correction platform, one end of the rotating block extends to the outside of the correction platform, a tooth groove rotating block is mounted on one end of the rotating block, and a latch is plugged into the inner wall of the tooth groove of the correction platform near the tooth groove rotating block. The purpose of such a setting is that during the use of the CNC machining fixture, the workpiece is placed on the operating panel, the height spacing between the cylinder and the rotating block is adjusted through the positioning platform, the extension rod of the cylinder is retracted forward, and the extension rod drives the top ends of the two hinged articulated blocks to move forward, and the bottom ends of the two articulated blocks are fixed to the rotating block, so that the rotating block is driven by the bottom ends of the two articulated blocks to rotate in the positioning platform, and the top ends of the two articulated blocks drive the hinged connecting block to move forward together, and the top end of the connecting block is driven forward by the bottom end. Since the middle end of the clamping block is fixed by the fixed seat, the top end of the connecting block The tail end of the end-pull clamp block is tilted upward, and the front end of the clamp block is driven by the tail end to rotate downward to clamp and fix the workpiece. The two ends of the workpiece are fixed on the operating panel through the structure of the clamping assembly to cooperate with the processing. A sleeve block is connected to the connecting block by bolts to facilitate the replacement of the clamp block. When the clamp block needs to be stably fixed, the rotating block drives the toothed groove rotating block at one end to rotate together when it rotates, and is fixed in the correction table by a pin. The pin is fixed on the inner wall of the toothed groove rotating block. Therefore, the toothed groove rotating block drives the rotating block and the clamp block to be fixed together, thereby enhancing the stability of the clamping assembly in clamping the workpiece.

[0009] Furthermore, two hinge blocks are hinged on the outer wall of the rotating block, the extended end of the cylinder is hinged with the two hinge blocks, a connecting block is hinged on the top outer wall of the side away from the two hinge blocks, and a sleeve block is provided on the top of the connecting block. The purpose of this arrangement is that during the use of the CNC machining fixture, the sleeve block is connected to the connecting block by bolts to facilitate the replacement of the clamping block, the extension rod of the cylinder is retracted forward, and the extension rod drives the top ends of the two hinged hinge blocks to move forward, and the bottom ends of the two hinge blocks are fixed to the rotating block, so that the rotating block is driven by the bottom ends of the two hinge blocks to rotate in the correction table.

[0010] Furthermore, a bolt is installed on the inner wall of the sleeve block. One end of the bolt penetrates through the sleeve block and extends to the inner wall of the connecting block. Clamping blocks are hinged on the inner walls of the two connecting blocks and the sleeve block, and the middle ends of the clamping blocks are hinged on the top inner wall of the fixed seat. The purpose of this setting is that during the use of this CNC machining fixture, the top ends of the two hinge blocks drive the hinged connecting blocks to move forward together, and the top end of the connecting block is driven by the bottom end to move forward. Since the middle end of the clamping block is fixed by the fixed seat, the top end of the connecting block pulls the tail end of the clamping block to tilt upward, and the front end of the clamping block is driven by the tail end to rotate downward to clamp and fix the workpiece.

[0011] Furthermore, the moving component includes a chassis. Support platforms are installed on the outer walls around the bottom surface of the chassis. A servo motor is installed on the outer wall of one side of the top of the chassis, and one end of the servo motor is installed with a threaded rod. The two ends of the threaded rod are respectively fixed on the outer walls of the two sides of the top of the chassis. The purpose of this setting is that during the use of this CNC machining fixture, the support platforms support the bottom of the chassis, and the servo motor drives the threaded rod to rotate on the chassis.

[0012] Furthermore, a slide plate is threadedly connected to the outer wall of the threaded rod. A turntable is rotatably connected to the inner wall of the top of the slide plate. A slide rail assembly is installed on the outer wall of one side of the slide plate, and the other end of the slide rail assembly extends and is fixed to the outer wall of the chassis through the lower part of the slide plate. The purpose of this setting is that during the use of this CNC machining fixture, when the threaded rod rotates, it drives the slide plate to move back and forth on the slide rail assembly. The slide plate is limited above the chassis by the slide rail assembly for translation, and the slide plate drives the steering component and the clamping component to move back and forth for adjustment.

[0013] Furthermore, a fixed frame is installed on the upper surface of the turntable. Rotating shafts are rotatably connected to the inner walls of the two sides of the top of the fixed frame. An operating disk is rotatably connected to the inner walls of the two rotating shafts close to each other. Two mounting seats are oppositely arranged on the outer walls of the two sides of the top of the operating disk. A motor is installed on the outer wall of one side of the top of the fixed frame, and the extended end of the motor is connected to one of the rotating shafts close to it. The purpose of this setting is that during the use of this CNC machining fixture, the turntable drives the steering component and the clamping component to rotate. The set fixed frame suspends the operating disk, the rotating shafts connect the fixed frame and the operating disk, and the motor drives the rotating shafts and the operating disk to rotate and adjust in the fixed frame, which is convenient for rotating and cooperating with the workpiece on the operating disk for machining.

[0014] The utility model has the following beneficial effects:

[0015] (1) Through the settings of the clamping block, the tooth groove rotating block and the pin, the front end of the clamping block is driven by the tail end to rotate downward to clamp and fix the workpiece. The two ends of the workpiece are fixed on the operation disk through the structure of the clamping assembly for cooperative processing. When it is necessary to stably fix the clamping block, the rotating block drives the tooth groove rotating block at one end to rotate together when rotating. The pin is inserted into the alignment table for fixation, and the pin is fixed on the inner wall of the tooth groove rotating block. Therefore, the tooth groove rotating block drives the rotating block, the clamping block, etc. to be fixed together, enhancing the stability of the clamping assembly for clamping the workpiece.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the moving assembly structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the steering assembly and the clamping assembly structure of the present utility model;

[0021] Figure 4 It is a schematic diagram of the partial disassembled structure of the clamping assembly of the present utility model;

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1. Moving assembly; 101. Underframe; 102. Support platform; 103. Servo motor; 104. Threaded rod; 105. Slide rail assembly; 106. Slide plate; 107. Turntable; 2. Steering assembly; 201. Fixed frame; 202. Rotating shaft; 203. Operation disk; 204. Motor; 3. Clamping assembly; 300. Bolt; 301. Mounting seat; 302. Alignment table; 303. Cylinder; 304. Rotating block; 305. Hinge block; 306. Connecting block; 307. Sleeve block; 308. Fixed seat; 309. Clamping block; 310. Tooth groove rotating block; 311. Pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 - Figure 4 As shown, the present utility model is a metal structure CNC machining fixture, including a moving component 1, a steering component 2 and a clamping component 3. The steering component 2 is installed on the upper surface of the moving component 1, and the clamping component 3 is installed on the upper surface of the steering component 2. The clamping component 3 includes two mounting seats 301. The upper surfaces of the two mounting seats 301 are respectively provided with a positioning table 302 and a fixed seat 308. A cylinder 303 is installed on the outer wall of one side of the top of the positioning table 302. The inner walls of both sides of the positioning table 302 are rotatably connected with a rotating block 304. One end of the rotating block 304 extends to the outside of the positioning table 302. A toothed groove rotating block 310 is installed at one end of the rotating block 304. A pin 311 is inserted into the inner wall of the positioning table 302 near the toothed groove of the toothed groove rotating block 310. The purpose of such a setting is that during the use of this CNC machining fixture, the workpiece is placed on the operation plate 203. The distance between the cylinder 303 and the rotating block 304 is adjusted through the positioning table 302. The extension rod of the cylinder 303 contracts forward. The top ends of the two articulated blocks 305 hinged to the extension rod move forward. The bottom ends of the two articulated blocks 305 are fixed to the rotating block 304. Therefore, the rotating block 304 is driven by the bottom ends of the two articulated blocks 305 to rotate in the positioning table 302. The top ends of the two articulated blocks 305 drive the connected block 306 hinged thereto to move forward together. The top end of the connected block 306 is driven by the bottom end to move forward. Since the middle end of the clamping block 309 is fixed by the fixed seat 308, the top end of the connected block 306 pulls the tail end of the clamping block 309 to tilt upward. The front end of the clamping block 309 is driven by the tail end to rotate downward to clamp and fix the workpiece. The two ends of the workpiece are fixed on the operation plate 203 through the structure of the clamping component 3 for cooperation in machining. A sleeve block 307 is connected to the connected block 306 through a bolt 300, which is convenient for replacing the clamping block 309. When it is necessary to stably fix the clamping block 309, the rotating block 304 drives the toothed groove rotating block 310 at one end to rotate together when rotating. It is fixed by inserting the pin 311 into the positioning table 302. The pin 311 is fixed on the inner wall of the toothed groove rotating block 310. Therefore, the toothed groove rotating block 310 drives the rotating block 304 and the clamping block 309, etc. to be fixed together, enhancing the stability of the clamping component 3 for clamping the workpiece.

[0026] On the outer wall of the rotating block 304, two hinge blocks 305 are hinged. The extending end of the cylinder 303 is hinged to the two hinge blocks 305. On the top outer wall of the side away from the two hinge blocks 305, a connecting block 306 is hinged. At the top end of the connecting block 306, a sleeve block 307 is provided. The purpose of such a setting is that during the use of this CNC machining fixture, the sleeve block 307 is connected to the connecting block 306 through a bolt 300, which facilitates the replacement of the clamping block 309. The extension rod of the cylinder 303 contracts forward, and the extension rod drives the top ends of the two hinged hinge blocks 305 to move forward. The bottom ends of the two hinge blocks 305 are fixed to the rotating block 304. Therefore, the rotating block 304 is driven by the bottom ends of the two hinge blocks 305 to rotate within the alignment table 302.

[0027] A bolt 300 is installed on the inner wall of the sleeve block 307. One end of the bolt 300 penetrates through the sleeve block 307 and extends to the inner wall of the connecting block 306. On the inner walls of the two connecting blocks 306 and the sleeve block 307, a clamping block 309 is hinged. The middle end of the clamping block 309 is hinged to the top inner wall of the fixed seat 308. The purpose of such a setting is that during the use of this CNC machining fixture, the top ends of the two hinge blocks 305 drive the hinged connecting block 306 to move forward together. The top end of the connecting block 306 is driven by the bottom end to move forward. Since the middle end of the clamping block 309 is fixed by the fixed seat 308, the top end of the connecting block 306 pulls the tail end of the clamping block 309 to tilt upward, and the front end of the clamping block 309 is driven by the tail end to rotate downward to clamp and fix the workpiece.

[0028] The moving assembly 1 includes a chassis 101. On the outer walls around the bottom surface of the chassis 101, support platforms 102 are respectively installed. On the outer wall of one side of the top of the chassis 101, a servo motor 103 is installed. One end of the servo motor 103 is provided with a threaded rod 104. The two ends of the threaded rod 104 are respectively fixed on the outer walls of the two sides of the top of the chassis 101. The purpose of such a setting is that during the use of this CNC machining fixture, the support platforms 102 support the bottom of the chassis 101, and the servo motor 103 drives the threaded rod 104 to rotate on the chassis 101. When the threaded rod 104 rotates, it drives the slide plate 106 to move back and forth on the slide rail assembly 105.

[0029] The outer wall of the threaded rod 104 is threadedly connected with a slide plate 106. The inner wall of the top of the slide plate 106 is rotatably connected with a turntable 107. On the outer wall of one side of the slide plate 106, a slide rail assembly 105 is installed. The other end of the slide rail assembly 105 extends and is fixed to the outer wall of the chassis 101 through the lower part of the slide plate 106. The purpose of such a setting is that during the use of this CNC machining fixture, when the threaded rod 104 rotates, it drives the slide plate 106 to move back and forth on the slide rail assembly 105. The slide plate 106 is limited above the chassis 101 by the slide rail assembly 105 for translation, and the slide plate 106 drives the steering assembly 2 and the clamping assembly 3 to move back and forth for adjustment together.

[0030] The upper surface of the turntable 107 is provided with a fixing frame 201. On the inner walls of both sides of the top of the fixing frame 201, a rotating shaft 202 is rotatably connected respectively. On the inner walls of the two rotating shafts 202 close to each other, an operation disc 203 is rotatably connected. Two mounting seats 301 are oppositely arranged on the outer walls of both sides of the top of the operation disc 203. On the outer wall of one side of the top of the fixing frame 201, a motor 204 is installed, and the extending end of the motor 204 is connected to one of the rotating shafts 202 close to it. The purpose of such a setting is that during the use of this CNC machining fixture, the turntable 107 drives the steering component 2 and the clamping component 3 to rotate. The fixing frame 201 set makes the operation disc 203 in a suspended state. The rotating shaft 202 connects the fixing frame 201 and the operation disc 203. The motor 204 drives the rotating shaft 202 and the operation disc 203 to rotate and adjust within the fixing frame 201, which is convenient for the rotary cooperation machining of the workpiece on the operation disc 203.

[0031] During use, place the workpiece on the operation disc 203. Adjust the height spacing between the cylinder 303 and the rotating block 304 through the alignment table 302. The extension rod of the cylinder 303 contracts forward. The extension rod drives the top ends of the two articulated blocks 305 connected by hinges to move forward. The bottom ends of the two articulated blocks 305 are fixed to the rotating block 304. Therefore, the rotating block 304 is driven by the bottom ends of the two articulated blocks 305 to rotate within the alignment table 302. The top ends of the two articulated blocks 305 drive the connected block 306 connected by hinges to move forward together. The top end of the connected block 306 is driven by the bottom end to move forward. Since the middle end of the clamping block 309 is fixed by the fixed seat 308, the top end of the connected block 306 pulls the tail end of the clamping block 309 to tilt upward. The front end of the clamping block 309 is driven by the tail end to rotate downward to clamp and fix the workpiece. The two ends of the workpiece are fixed on the operation disc 203 through the structure of the clamping component 3 for cooperative machining. The sleeve block 307 is connected to the connected block 306 through a bolt 300, which is convenient for replacing the clamping block 309. When it is necessary to stably fix the clamping block 309, the rotating block 304 drives the tooth groove rotating block 310 at one end to rotate together when rotating. It is fixed within the alignment table 302 through a pin 311. The pin 311 is fixed on the inner wall of the tooth groove rotating block 310. Therefore, the tooth groove rotating block 310 drives the rotating block 304 and the clamping block 309, etc. to be fixed together, enhancing the clamping stability of the clamping component 3 for the workpiece;

[0032] The support platform 102 supports the bottom of the chassis 101. The servo motor 103 drives the threaded rod 104 to rotate on the chassis 101. When the threaded rod 104 rotates, it drives the slide plate 106 to move back and forth on the slide rail assembly 105, and drives the steering assembly 2 and the clamping assembly 3 to rotate through the turntable 107. The provided fixing frame 201 suspends the operation panel 203. The rotating shaft 202 connects the fixing frame 201 and the operation panel 203. The motor 204 drives the rotating shaft 202 and the operation panel 203 to rotate and adjust within the fixing frame 201, which is convenient for performing rotary mating processing on the workpiece on the operation panel 203. By driving the steering assembly 2 and the clamping assembly 3 to rotate through the turntable 107, the provided fixing frame 201 suspends the operation panel 203. The rotating shaft 202 connects the fixing frame 201 and the operation panel 203. The motor 204 drives the rotating shaft 202 and the operation panel 203 to rotate and adjust within the fixing frame 201, which is convenient for performing rotary mating processing on the workpiece on the operation panel 203.

[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A metal structure CNC machining jig, comprising a moving component (1), a steering component (2) and a clamping component (3), characterized in that: The steering assembly (2) is mounted on the upper surface of the moving assembly (1), and the clamping assembly (3) is mounted on the upper surface of the steering assembly (2). The clamping assembly (3) comprises two mounting seats (301), and the upper surfaces of the two mounting seats (301) are respectively provided with a correction platform (302) and a fixed seat (308). A cylinder (303) is mounted on the outer wall of one side of the top of the correction platform (302), and rotating blocks (304) are rotatably connected on the inner walls on both sides of the correction platform (302), one end of the rotating block (304) extends to the outside of the correction platform (302), and a tooth groove rotating block (310) is mounted on one end of the rotating block (304), and a pin (311) is inserted into the inner wall of the tooth groove of the correction platform (302) near the tooth groove rotating block (310).

2. A metal structure CNC machining jig according to claim 1, characterized in that: Two hinge blocks (305) are hinged on the outer wall of the rotating block (304), the extended end of the cylinder (303) is hinged to the two hinge blocks (305), a connecting block (306) is hinged on the top outer wall of the side away from the two hinge blocks (305), and a sleeve block (307) is provided at the top of the connecting block (306).

3. A metal structure CNC machining jig according to claim 2, characterized in that: A bolt (300) is installed on the inner wall of the sleeve block (307), one end of the bolt (300) passes through the sleeve block (307) and extends to the inner wall of the connecting block (306), and a clamping block (309) is hinged on the inner walls of the two connecting blocks (306) and the sleeve block (307), and the middle end of the clamping block (309) is hinged on the top inner wall of the fixing seat (308).

4. The metal structure CNC machining jig according to claim 1, characterized in that: The moving assembly (1) comprises a base frame (101), support platforms (102) are respectively installed on the outer walls around the bottom surface of the base frame (101), a servo motor (103) is installed on the outer wall on one side of the top of the base frame (101), a threaded rod (104) is installed at one end of the servo motor (103), and the two ends of the threaded rod (104) are respectively fixed to the outer walls on both sides of the top of the base frame (101).

5. A metal structure CNC machining jig according to claim 4, characterized in that: A slide plate (106) is threadedly connected to the outer wall of the threaded rod (104), a turntable (107) is rotatably connected to the top inner wall of the slide plate (106), a slide rail assembly (105) is installed on one side outer wall of the slide plate (106), and the other end of the slide rail assembly (105) is extended from the bottom of the slide plate (106) and fixed to the outer wall of the base frame (101).

6. A metal structure CNC machining jig according to claim 5, characterized in that: A fixing frame (201) is installed on the upper surface of the turntable (107); a rotating shaft (202) is rotatably connected to the inner walls on both sides of the top of the fixing frame (201); an operating disk (203) is rotatably connected to the inner wall on one side where the two rotating shafts (202) are close to each other; two mounting seats (301) are arranged on the outer walls on both sides of the top of the operating disk (203) opposite to each other; a motor (204) is installed on the outer wall on one side of the top of the fixing frame (201); and an extension end of the motor (204) is connected to a rotating shaft (202) close to each other.

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