Positioning and clamping device for CNC machine

Abstract

The invention relates to the technical field of machining, and provides a positioning and clamping device for a CNC machine. The substrate is mounted in CNC equipment; the supporting piece is installed on the base plate and used for supporting the machining tray. The limiting assembly is arranged on the base plate and used for limiting movement and positioning of the machining tray. The pressing and holding assembly is installed on the base plate and used for pressing and fixing the machining tray, and the pressing and holding assembly can be far away from and close to the machining tray. When the pressing and holding assembly moves towards the machining tray, the pressing and holding assembly enables the machining tray to be tightly pressed on the supporting piece to be fixed. And after the pressing and holding assembly moves away from the machining tray, the pressing and holding assembly is separated from the machining tray, and the machining tray can be moved out of the CNC equipment. The machining tray is limited and positioned through the limiting assembly firstly, it is guaranteed that the machining tray is installed at the accurate position, and the workpiece to be machined is prevented from deviating; and then the machining tray is pressed on the supporting piece through the pressing and holding assembly to be supported and fixed, and the fixing stability of the machining tray is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of machining, and in particular to a positioning and clamping device for a CNC machine. Background Art

[0002] During the processing of CNC equipment, it is necessary to fix the processing tray that is placed in it, so that the workpiece to be processed can be positioned and fixed. The existing positioning method, such as the solution with patent authorization announcement CN 220613153 U, uses a limit block to limit and prevent deflection, but there is no end limit, and there is a problem of pushing over; it uses the first air hole to cut off the air, and the second air hole to let in air at the same time, the air pressure between the push part and the piston cover plate increases, and the piston cover plate is fixed, so the air pressure drives the push part to move downward. Since the zero-point pull plate and the push rod are locked by screws, the zero-point pull plate is pulled down, and the fixture tray is pulled down and locked. That is, the downward pulling force provided by the spring causes the fixture tray to be pulled down and locked. It uses the pulling force of the spring for locking, rather than locking and fixing, and there will be a problem of shaking during processing. Summary of the invention

[0003] In view of the instability of the prior art, the present invention aims to provide a stable and fixed positioning and clamping device for a CNC machine.

[0004] To solve the above problems, the present invention provides the following technical solutions: A positioning and clamping device for a CNC machine, comprising: a CNC device; A substrate, installed in the CNC device; A support member, mounted on the base plate, for supporting the processing tray; A limiting assembly, provided on the base plate, for limiting the movement and positioning of the processing tray; A pressing component is installed on the base plate and is used to press and fix the processing tray, and the pressing component can be moved away from and close to the processing tray; When the pressing assembly moves toward the processing tray, the pressing assembly presses the processing tray onto the supporting member to fix it; when the pressing assembly moves away from the processing tray, the pressing assembly separates from the processing tray, and the processing tray can be moved out of the CNC device.

[0005] In some embodiments, there are two pressing assemblies, and the two pressing assemblies are respectively located on both sides of the processing tray; Each of the pressing and holding assemblies comprises a pressing member and a driving member; The driving member is mounted on the base plate, the pressing member is mounted on the driving member, and the driving member drives the pressing member to move, so that the processing tray is pressed by the pressing member or the processing tray is separated from the pressing member.

[0006] In some embodiments, the driving member includes a limit rod, a cylinder, and a connecting plate; The cylinder is mounted on the base plate, and the connecting plate is fixed to the piston rod of the cylinder; The limiting rod is installed on the connecting plate and is used to enable the connecting plate to move along the moving direction of the piston rod.

[0007] In some embodiments, the pressing member includes a connecting block and a pressing block; The connecting block is fixedly mounted on the connecting plate, and the pressing block is fixedly mounted on the connecting block. The pressing block is used to press and fix the processing tray.

[0008] In some embodiments, the positioning and clamping device for a CNC machine further comprises a bearing member; The bearing member is installed on the pressing assembly, and the bearing member moves with the pressing assembly to drive the processing tray to move; When the pressing assembly moves the processing tray toward the supporting member, the processing tray contacts the supporting member and is separated from the carrier, and then the pressing assembly presses the processing tray; When the pressing assembly moves away from the processing pallet, the carrying member causes the processing pallet to be separated from the supporting member, and the processing pallet can move out of the CNC device.

[0009] In some embodiments, the carrier includes a first carrier plate and a second carrier plate; The first carrier plate and the second carrier plate are respectively installed on one of the connecting blocks; the first carrier plate and the second carrier plate are lower than the clamping block, the distance between the first carrier plate and the clamping block on the corresponding side is greater than the thickness of the processing pallet, and the distance between the second carrier plate and the clamping block on the corresponding side is greater than the thickness of the processing pallet.

[0010] In some embodiments, the limiting assembly includes a first blocking member; The first blocking member is used to block the movement of the processing tray; After the processing tray moves to a corresponding position toward the CNC device, the first blocking member restricts the processing tray from further moving.

[0011] In some embodiments, the pressing assembly is provided with a limiting groove; The position limiting assembly further includes a second blocking member and a deviation correcting member; The first carrier plate and the second carrier plate are installed in the limiting groove to slide, and after sliding to corresponding positions in the CNC device, the first carrier plate and the second carrier plate stop sliding; The first carrier plate and the second carrier plate are located inside the CNC device and are fixedly connected via the second blocking member, the upper side of the second blocking member is higher than the upper sides of the first carrier plate and the second carrier plate, the second blocking member enables the first carrier plate and the second carrier plate to move synchronously, and the second blocking member can block the movement of the processing tray; The deviation-correcting parts are respectively installed on the first carrier plate and the second carrier plate, and are used to gather the processing tray toward the middle; When the processing pallet is pushed to move into the CNC device, the processing pallet moves to the first carrier plate and the second carrier plate and contacts the second blocking member. The processing pallet pushes the first carrier plate and the second carrier plate to move inward through the second blocking member. When the processing pallet causes the first carrier plate and the second carrier plate to move, the correcting member touches the processing pallet, causing the processing pallet to gather toward the middle.

[0012] In some embodiments, the limit assembly further includes a positioning member; The positioning member is installed on the base plate, and the positioning member is used for aligning the processing tray; When the processing pallet moves toward the supporting member, the positioning member enables the processing pallet to be corrected.

[0013] In some embodiments, a plurality of magnets are mounted on upper sides of the first carrier plate and the second carrier plate; when the processing pallet moves out of the CNC device, the processing pallet drives the first carrier plate and the second carrier plate to move via the magnets.

[0014] The beneficial effects of the present invention are as follows: the processing pallet is first limited and positioned by a limiting component to ensure that the processing pallet is installed in an accurate position to prevent the workpiece from being skewed; the processing pallet is then pressed against the support member by a pressing component to support and fix it, thereby ensuring the fixing stability of the processing pallet; and the efficiency of later processing is accelerated by the rapid implementation of limiting and pressing fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the positioning and clamping device of the present invention being placed in a processing tray; Figure 2 A three-dimensional diagram of the positioning and clamping device of the present invention; Figure 3 A three-dimensional diagram of one embodiment of the positioning and clamping device of the present invention without the cover; Figure 4 A three-dimensional diagram of another embodiment of the positioning and clamping device of the present invention without the cover; Figure 5 A three-dimensional diagram of another embodiment of the movement of the second limiting member of the positioning and clamping device of the present invention; Figure 6It is a three-dimensional diagram of a bearing member and a limiting member in another embodiment of the present invention; Figure 7 This is an enlarged view of point A of the present invention; Figure 8 A three-dimensional diagram of a connection block according to another embodiment of the present invention; Fig. 9 It is a three-dimensional diagram of the CNC equipment of the present invention; Fig.10 It is a three-dimensional diagram of another embodiment of the present invention; Fig.11 A three-dimensional diagram of another embodiment of the present invention without a processing tray; Fig.12 A three-dimensional diagram of a manual CNC device of the present invention; Fig.13 A three-dimensional diagram of the automatic CNC equipment of the present invention; Fig.14 It is a schematic diagram of the structure of the locking assembly in the manual CNC device of the present invention; Fig.15 It is a schematic diagram of the structure of the connected components in the manual CNC equipment of the present invention.

[0016] Reference numerals: 1. CNC equipment; 101. substrate; 102. processing tray; 103. cylinder; 2. Support member; 201. Detection hole; 202. Support plate; 203. Cylindrical block; 3. Position limiting assembly; 301. first blocking member; 303. second blocking member; 304. deviation correcting member; 305. supporting block; 306. push rod; 308. straight rod; 309. compression spring; 310. magnet; 311. positioning member; 312. cover body; 4. Pressing assembly; 410. Pressing member; 420. Driving member; 411. Connecting block; 412. Pressing block; 421. Limiting rod; 422. Cylinder; 423. Connecting plate; 424. Limiting groove; 425. Pushing block; 5. Carrying member; 501. First carrier plate; 502. Second carrier plate; 503. First roller; 504. Stopper; 6. Locking assembly; 601. Pressing block; 602. Articulated rod; 603. Articulated spring; 604. Driving block; 605. Locking block; 7. Connecting assembly; 701. Moving block; 702. Rotating rod; 703. Rotating spring; 704. Sealing block; 8. conveying member; 801. second roller; 9. Mobile cart. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] For the convenience of describing the first direction, the second direction and the third direction in the embodiment of the present application, the first direction is the left-right direction in the drawings, the second direction is the front-back direction in the drawings, and the third direction is the up-down direction in the drawings. The x-axis arrow direction is referred to as the "right" direction in the following text, the y-axis arrow direction is referred to as the "up" direction in the following text, and the z-axis arrow direction is referred to as the "back" direction in the following text, which is not limited to the actual application of the present application.

[0020] like Figure 1-3 as well as Figure 7 As shown, this embodiment provides a positioning and clamping device for a CNC machine, which includes a CNC device 1, a base plate 101, a support member 2, a limit assembly 3, and a holding assembly 4. The base plate 101 is installed in the CNC device 1; the support member 2 is installed on the base plate 101, and is used to support the processing tray 102; the limit assembly 3 is provided on the base plate 101, and is used to limit the movement and positioning of the processing tray 102; the holding assembly 4 is installed on the base plate 101, and is used to press and fix the processing tray 102, and the holding assembly 4 can move away from and approach the processing tray 102; when the holding assembly 4 moves toward the processing tray 102, the holding assembly 4 presses the processing tray 102 on the support member 2 for fixing; when the holding assembly 4 moves away from the processing tray 102, the holding assembly 4 is separated from the processing tray 102, and the processing tray 102 can be moved out of the CNC device 1. That is to say, before the CNC equipment 1 performs processing, the processing pallet 102 carrying the workpiece to be processed is first limited and positioned by the limiting component 3 to ensure that the processing pallet 102 is installed in the correct position to prevent the workpiece to be processed from being skewed; then, the processing pallet 102 is pressed against the support member 2 by the pressing component 4 to support and fix it, thereby ensuring the fixed stability of the processing pallet 102; through limiting and pressing fixation, the operation is simple and convenient.

[0021] like Figure 1-5As shown, in this embodiment, there are two pressing assemblies 4, which are respectively located on both sides of the processing tray 102, and each pressing assembly 4 includes a pressing member 410 and a driving member 420; the driving member 420 is installed on the substrate 101, and the pressing member 410 is installed on the driving member 420, and the driving member 420 drives the pressing member 410 to move, so that the processing tray 102 is pressed by the pressing member 410 or the processing tray 102 is separated from the pressing member 410. In other words, the workpiece is pressed by the pressing assemblies on both sides to ensure the pressing stability of the processing tray 102 and the normal processing.

[0022] like Figure 3-5 As shown, in one embodiment, the driving member 420 includes a limiting rod 421, a cylinder 422 and a connecting plate 423; the cylinder 422 is mounted on the base plate 101, and the connecting plate 423 is fixed to the piston rod of the cylinder 422; the limiting rod 421 is mounted on the connecting plate 423, and is used to move the connecting plate 423 relative to the moving direction of the piston rod. The pressing member 410 includes a connecting block 411 and a pressing block 412; the connecting block 411 is fixedly mounted on the connecting plate 423, and the pressing block 412 is fixedly mounted on the connecting block 411, and the pressing block 412 is used to press and fix the processing tray 102. The cylinder 422 is used for driving, and the limit rod 421 is used to ensure that the connecting plate 423 lifted by the cylinder 422 will not be deflected, thereby ensuring the stability of the connecting plate 423 during driving. Finally, the processing pallet 102 is clamped and fixed or separated and moved through the clamping block 412. That is to say, when the processing pallet 102 is clamped and fixed, it is clamped as a whole by the clamping block 412, and the processing pallet 102 will not be loosely held due to the deflection of the clamping block 412, which will cause errors during processing.

[0023] A spring is sleeved on the limit rod 421, and the spring applies a downward pulling force to the connecting plate 423. When the cylinder 422 is suddenly out of air, the spring will pull the connecting plate 423 downward, so that the connecting plate 423 presses the processing tray 102 through the pressing block 411 to prevent the processing tray 102 from detaching.

[0024] The pressure applied by the cylinder 422 to the processing pallet 102 through the connecting plate 423 and the clamping block 412 is greater than or equal to 3 MPa, so that the processing pallet 102 is subjected to sufficient pressure to ensure that the processing pallet 102 has sufficient stability and prevent the processing pallet 102 from shaking due to insufficient pressure during processing, thereby affecting its processing accuracy.

[0025] In other embodiments, the air cylinder 422 may also be replaced by a driving member 420 such as an electric cylinder or a hydraulic cylinder, which is convenient for pressing and fixing or separating and moving the processing tray 102.

[0026] In other embodiments, the cylinder 422 can also be replaced by a screw rod and a nut. The screw rod is installed on the base plate 101 and driven by electricity, and the nut is installed on the connecting plate 423. The connecting plate 423 can be moved up and down by the screw rod and nut, so that the processing tray 102 is clamped and fixed or separated by the clamping block 412. The use of the screw rod and nut can also ensure that the connecting plate 423 has a locking effect after moving up and down, thereby preventing the problem of loose clamping due to power outage or air outage during the processing process.

[0027] like Figure 1-5 As shown, in this embodiment, the positioning and clamping device for CNC machine further includes a bearing member 5, which is installed on the pressing assembly 4. The bearing member 5 drives the processing tray 102 to move with the movement of the pressing assembly 4; when the pressing assembly 4 causes the processing tray 102 to move toward the supporting member 2, the processing tray 102 contacts the supporting member 2 and separates from the bearing member 5, and then the pressing assembly 4 presses the processing tray 102; when the pressing assembly 4 moves away from the processing tray 102, the bearing member 5 separates the processing tray 102 from the supporting member 2, and the processing tray 102 can move out of the CNC device 1. In other words, when the pressing assembly 4 separates from the processing tray 102, the bearing member 5 lifts the processing tray 102, and at this time, the processing tray 102 is easy to move out of the CNC device 1. Similarly, at this time, it is also easy for the processing tray 102 to be pushed into the CNC device 1 and carried by the bearing member 5; that is, the bearing member 5 facilitates the processing tray 102 to move in and out of the CNC device 1.

[0028] like Figure 2-5 As shown, in this embodiment, the carrier 5 includes a first carrier plate 501 and a second carrier plate 502, and the first carrier plate 501 and the second carrier plate 502 are respectively installed on a connecting block 411; the first carrier plate 501 and the second carrier plate 502 are lower than the clamping block 412, and the distance between the first carrier plate 501 and the clamping block 412 on the corresponding side is greater than the thickness of the processing pallet 102. Similarly, the distance between the second carrier plate 502 and the clamping block 412 on the corresponding side is greater than the thickness of the processing pallet 102. The thickness of the processing pallet 102 is smaller than the distance between the first carrier plate 501 and the clamping block 412 and the distance between the second carrier plate 502 and the clamping block 412. This makes it easy to move the processing pallet 102 between the first carrier plate 501 and the clamping block 412 and between the second carrier plate 502 and the clamping block 412 without the processing pallet 102 getting stuck. The first carrier plate 501 and the second carrier plate 502 are used to jointly support the processing pallet 102, ensuring that the processing pallet 102 does not warp due to unilateral support.

[0029] like Figure 2-3As shown, in this embodiment, a plurality of first rollers 503 are respectively provided on the first carrier plate 501 and the second carrier plate 502, and the first carrier plate 501 and the second carrier plate 502 are in contact with the processing pallet 102 via the first rollers 503. The arrangement of the first carrier plate 501 and the second carrier plate 502 can reduce the friction between the processing pallet 102 and the first carrier plate 501 and the second carrier plate 502 when the processing pallet 102 moves in and out of the CNC device 1, thereby reducing the wear of the processing pallet 102 and ensuring the normal progress of subsequent operations.

[0030] like Figure 2-3 As shown, in one embodiment of the position limiting assembly 3, the position limiting assembly 3 includes a first blocking member 301; the first blocking member 301 is used to block the movement of the processing tray 102; when the processing tray 102 moves to a corresponding position toward the CNC device 1, the first blocking member 301 limits the processing tray 102 from continuing to move. By using the position limiting assembly 3, there is no need to worry about the problem of excessive movement of the processing tray 102 during the process of moving the processing tray 102 inward toward the CNC device 1.

[0031] like Figure 2-3 As shown, in one of the embodiments of the limiting assembly 3, the first blocking member 301 includes a vertical plate and a blocking block, the vertical plate is installed on the base plate 101, and the mounting block is installed on the vertical plate; the mounting block is a buffer member, and the mounting block does not produce excessive deformation, so that when the processing tray 102 wants to move inward, it has a blocking and limiting effect, thereby preventing the processing tray 102 from colliding and deforming when being pushed, which affects the subsequent use.

[0032] In one embodiment of the position limiting assembly 3, the first blocking member 301 further includes a fixed block, a spring, a contact block and a slide bar; the fixed block is mounted on the base plate 101, the slide bar is mounted on the fixed block, the contact block is mounted on the slide bar, and a spring is sleeved on the slide bar. The spring gives the contact block a force to move forward through the slide bar, that is, the processing tray 102 moves into the CNC device 1 and contacts the contact block, and the contact block moves the spring backward so that the processing tray 102 is blocked. When the processing tray 102 is released, the spring pushes the processing tray 102 through the contact block so that the processing tray 102 moves and is limited. When the processing tray 102 pushes the contact block and then pushes the spring, the processing tray 102 and the contact block will not have a hard collision under the deformation of the spring, which prevents the processing tray 102 from being deformed when it is pushed, thereby preventing the processing tray 102 from being deformed and affecting the later use.

[0033] like Figure 4-8As shown, in another embodiment of the limiting assembly 3, a limiting groove 424 is provided on the holding assembly 4; the limiting assembly 3 also includes a second blocking member 303 and a deviation correcting member 304; the first carrier plate 501 and the second carrier plate 502 are installed in the limiting groove 424 to slide, and after sliding into the CNC device 1, the first carrier plate 501 and the second carrier plate 502 stop sliding; the first carrier plate 501 and the second carrier plate 502 are located on the inner side of the CNC device 1 and are fixedly connected by the second blocking member 303, the upper side of the second blocking member 303 is higher than the upper side of the first carrier plate 501 and the second carrier plate 502, the second blocking member 303 enables the first carrier plate 501 and the second carrier plate 502 to move synchronously, and the second The blocking member 303 can block the movement of the processing pallet 102; the correcting member 304 is respectively installed on the first carrier plate 501 and the second carrier plate 502, and is used to gather the processing pallet 102 to the middle; when the processing pallet 102 is pushed to move into the CNC device 1, the processing pallet 102 moves to the first carrier plate 501 and the second carrier plate 502 and contacts the second blocking member 303, and the processing pallet 102 pushes the first carrier plate 501 and the second carrier plate 502 to move inward through the second blocking member 303. When the processing pallet 102 causes the first carrier plate 501 and the second carrier plate 502 to move, the correcting member 304 will touch the processing pallet 102, so that the processing pallet 102 gathers to the middle. That is, when the processing pallet 102 moves into the CNC device 1, the processing pallet 102 will first fall on the first carrier 501 and the second carrier 502, and the processing pallet 102 will contact the second blocking plate and move the first carrier 501 and the second carrier 502 limit grooves 424 into the CNC device 1 together through the second blocking member 303. After moving to the corresponding position, the limit grooves 424 block the movement of the first carrier 501 and the second carrier 502. At this time, it is only necessary to stop pushing the processing pallet 102. When the first carrier 501 and the second carrier 502 are pushed, the deviation correction member 304 on the first carrier 501 and the second carrier 502 is triggered, and the deviation correction member 304 makes the processing pallet 102 that may be deflected gather to the center, thereby preventing the deflection of the processing pallet 102, thereby preventing the processing accuracy from being affected.

[0034] like Figure 4-8As shown, in another embodiment of the limit assembly 3, the deviation correcting member 304 includes a support block 305, a push rod 306, a straight rod 308 and a compression spring 309; a push block 425 is provided on the holding assembly 4; the support block 305 is respectively mounted on the corresponding first carrier plate 501 and the second carrier plate 502, the straight rod 308 is mounted on the support block 305, the push rod 306 is mounted on the straight rod 308, and the compression spring 309 is sleeved on the straight rod 308. The compression spring 309 pulls the push rod 306 to move to the side away from the processing tray 102 through the straight rod 308; the push block 425 is installed on the connecting block 411. When the processing tray 10 When the first carrier plate 501 and the second carrier plate 502 are pushed to move by the second blocking member 303, the first carrier plate 501 and the second carrier plate 502 drive the push rod 306 to move. When the straight rod 308 contacts the push block 425, the push block 425 pushes the push rod 306 to move toward the processing tray 102 through the straight rod 308 until the straight rod 308 moves to the middle position of the push block 425, that is, the middle part of the inner side of the push block 425 is the limit position for pushing the straight rod 308, so that the processing tray 102 is completely moved to the middle; it can prevent the processing tray 102 from deviating during the movement process and affecting the later processing. By using the tension spring, the tension spring always moves the push rod 306 away from the processing tray 102, which can prevent the processing tray 102 from being difficult to put in when the processing tray 102 is placed on the first carrier plate 501 and the second carrier plate 502. The limit position is the inner middle of the push block 425 . When the processing tray moves outward, the push block 425 pushes the straight rod 308 to make way, and the processing tray 102 can be moved out of the CNC device 1 .

[0035] Stoppers 504 are provided on the first carrier plate 501 and the second carrier plate 502 to stop the first carrier plate 501 and the second carrier plate 502 from moving inward or outward.

[0036] like Figure 4-8 As shown, in another embodiment of the position limiting assembly 3, a plurality of magnets 310 are respectively installed on the upper sides of the first carrier plate 501 and the second carrier plate 502; when the processing tray 102 moves out of the CNC device 1, the processing tray 102 drives the first carrier plate 501 and the second carrier plate 502 to move via the magnets 310. By using the adsorption of the magnets 310 and the processing tray 102, the processing tray 102 can drive the first tray and the second tray to move outward when the processing tray 102 moves out of the CNC device 1, so as to facilitate the placement of the processing tray 102 next time; and when the processing tray 102 moves into the CNC device 1, the processing tray 102 can be prevented from shaking back and forth under the adsorption of the magnets 310.

[0037] like Figure 2-5As shown, in this embodiment, the limiting assembly 3 further includes a positioning member 311; the positioning member 311 is installed on the base plate 101, and the positioning member 311 is used to align the processing tray 102; when the processing tray 102 moves toward the support member 2, the positioning member 311 moves into the corresponding limiting hole on the processing tray 102, and then the positioning member 311 calibrates the processing tray 102. That is, when the processing tray 102 moves toward the support member 2, the positioning member 311 accurately positions the furniture processing tray 102 to ensure the processing accuracy of the later processed parts.

[0038] like Figure 2-5 As shown, in this embodiment, the upper end of the positioning member 311 is tapered to prevent the processing tray 102 from being unable to be placed in due to a slight error.

[0039] like Figure 2-5 As shown, in this embodiment, the number of the positioning members 311 is greater than or equal to two, which can prevent the processing tray 102 from rotating around the positioning members 311 after the processing tray 102 is placed.

[0040] The positioning member 311 is columnar, and the matching clearance between the positioning member 311 and the corresponding limiting hole on the processing tray 102 is between 0.01mm and 0.02mm, thereby ensuring that the processing error during processing is between 0.01mm and 0.02mm, so as to achieve good processing accuracy.

[0041] like Figure 2-5 As shown, in this embodiment, the number of supports 2 is greater than or equal to three, and the axes of the supports 2 are not located on the same plane. When the processing tray 102 is placed on the supports 2, the number is greater than or equal to three, which can better ensure stability during placement and pressing.

[0042] like Figure 2-5 As shown, in one embodiment, a detection hole 201 is provided on the support 2. When the processing tray 102 is placed on the support 2 and pressed, the processing tray 102 blocks the detection hole 201. Whether the processing tray 102 is pressed is determined by detecting whether the detection hole is breathable.

[0043] like Figure 9-10As shown, in another embodiment, the support member 2 includes a support plate 202 and a cylindrical block 203, the support plate 202 is fixed on the base plate 101, and the cylindrical block 203 is fixed on the support plate 202; the upper end of the cylindrical block 203 is chamfered, and a cylinder 103 is fixed on the lower side of the processing tray 102, and the cylinder 103 can be sleeved on the cylindrical block 203; the cooperation between the cylinder 103 and the support column 202 is a zero-point fixture cooperation, and the processing tray 102 is supported after the cylinder 103 contacts the support plate 202. That is to say, when the processing tray 102 moves downward, the cylinder 103 on the processing tray 102 is sleeved on the cylindrical block 203, and the cylinder 103 stops moving after contacting the support plate 202, making it more convenient to install the processing tray 102.

[0044] The matching accuracy between the cylindrical block 203 and the cylinder 103 is less than 0.01 mm, thereby ensuring that the processing error during processing is less than 0.01 mm, making the processing accuracy more precise.

[0045] like Figure 1-5 As shown, in this embodiment, the positioning and clamping device for the CNC machine also includes a conveying member 8, which is installed on the base plate 101 and located at the opening of the CNC device 1. There is a second roller 801 on the conveying member 8. The processing tray 102 is moved to or out of the CNC device 1 via the conveying member 8, which is convenient to use.

[0046] like Figure 1 As shown, in this embodiment, the positioning and clamping device for CNC machine further includes a cover 312, which is disposed on the drive assembly and moves up and down with the connecting plate 423. The cover 312 is used to prevent machining debris and coolant from falling onto the drive assembly, making it difficult to clean.

[0047] According to the above embodiments, the positioning and clamping device for CNC machine can be used for manual conveying of CNC equipment 1, such as Figure 11-12 can also be used for automatic CNC equipment 1, such as Fig.13 shown.

[0048] like Figure 14-15As shown, according to the above embodiment, after the metal workpiece placed on the processing tray 102 is processed, the processing tray 102 is controlled to slide in the direction of the transport trolley 9. In order to ensure that the processing tray 102 can slide smoothly onto the transport trolley 9, the transport trolley 9 of this scheme needs to remain relatively still with the CNC machine tool; based on this, the present scheme also includes a locking assembly 6, the locking assembly 6 includes a pressing block 601, a hinge rod 602, a hinge spring 603, a driving block 604 and a locking block 605, the middle end of the hinge rod 602 is rotatably arranged in the transport trolley 9, it should be noted that when the processing tray 102 is located on the transport trolley 9, the hinge rod 602 is in a horizontal state, the two ends of the hinge spring 603 are respectively connected to one end of the hinge rod 602 and the transport trolley 9, the pressing block 601 can be vertically slidably arranged between the two transport positioning assemblies 1, and the bottom of the pressing block 601 slides along the axial direction of the hinge rod 602 and is locked with the hinge rod 602. One end is hinged; the driving block 604 can be vertically slidably arranged at the bottom of one end of the transport trolley 9 close to the CNC machine tool, the top of the driving block 604 slides along the axial direction of the hinge rod 602 and is hinged to the other end of the hinge rod 602, a locking groove is provided at the bottom of the driving block 604, the locking block 605 is connected to the fixed frame 101, and the driving block 604 can lock or release its restrictive cooperation relationship with the locking block 605 through the locking groove; it is worth noting that when the processing pallet 102 is moved from the transport trolley 9 to the CNC machine tool, the hinge rod 602 in a horizontal state will be transformed from the original horizontal state to an inclined state due to the action of the hinge spring 603, so that the pressing block 601 moves toward the top direction of the transport trolley 9, and the driving block 604 arranged at the other end of the hinge rod 602 will move toward the bottom until the locking groove of the driving block 604 cooperates with the locking block 605 to achieve a relatively static state between the transport trolley 9 and the CNC machine tool. It is also worth mentioning that after the transport trolley 9 moves to the CNC machine tool and fits against the CNC machine tool, the transport trolley 9 is also restricted by the two transport positioning components 1 , and at this time, the driving block 604 is located on top of the locking block 605 .

[0049] Furthermore, in the present embodiment, the top of the pressing block 601 is tilted, and as viewed in the direction perpendicular to the front end face of the CNC machine tool and approaching the CNC machine tool, the vertical height of the pressing block 601 gradually decreases; after the metal workpiece on the processing tray 102 is processed, it will be pushed back from the CNC machine tool to the transport trolley 9. Since the top of the pressing block 601 is tilted, and the height of the tilted end of the top of the pressing block 601 is between the set height of the bottom surface of the processing tray 102, as the processing tray 102 moves to the transport trolley 9, the processing tray 102 will control the pressing block 601 to move toward the bottom, so that the hinge rod 602 is transformed from a tilted state to a horizontal state, and the drive block 604 releases its restrictive cooperation relationship with the locking block 605 again.

[0050] like Figure 14-15 As shown, according to the above embodiments, in order to ensure the working environment in the CNC machine tool and prevent particles such as dust from adhering to the working parts; and, in order to discharge the coolant generated during operation, the CNC machine tool of this scheme will have a waste water tank at the bottom of the machine table, and the particles in the external environment will enter the CNC machine tool from the waste water tank. Based on this, in order to solve this problem, this scheme also includes a connecting component 7, and the connecting component 7 includes a moving block 701, a rotating rod 702, a rotating spring 703 and a sealing block 704. The sealing block 704 can be slidably arranged at the bottom of the machine table, and the sealing block 704 can lock or release it from the waste water tank. The sealing matching relationship is that the moving block 701 can be horizontally slidably arranged at the bottom of the machine platform, the middle end of the rotating rod 702 can be rotatably hinged to the bottom of the machine platform, and the rotating rod 702 is in a vertical state under normal conditions. The sealing block 704 is slidably arranged at one end of the rotating rod 702 along the axial direction of the rotating rod 702, and one end of the moving block 701 is slidably hinged to the other end of the rotating rod 702 along the axial direction of the rotating rod 702. The two ends of the rotating spring 703 are respectively connected to one end of the rotating rod 702 and the bottom of the machine platform; in addition, the top of the other end of the moving block 701 is tilted, and it is perpendicular to the CNC machine. Looking from the front end of the bed toward the direction close to the fixed frame 101, the vertical height of the other end of the moving block 701 gradually decreases, and the bottom surface of the moving block 701 and the top surface of the locking block 605 are at the same horizontal height; looking from top to bottom, one end of the driving block 604 can lock or release its abutting and fitting relationship with the inclined end of the moving block 701; through such an arrangement, when the driving block 604 moves toward the locking block 605, the driving block 604 will press the inclined end of the moving block 701, so that the moving block 701 moves in the direction away from the locking block 605, thereby driving the rotating rod 702 matched with the moving block 701 to rotate, so that the The rotating rod 702 is transformed from a vertical state to an inclined state, and the rotating rod 702 pushes the sealing block 704 matched therewith to slide, thereby releasing the sealing matching relationship between the sealing block 704 and the waste water tank, so that when the CNC machine tool is working, the coolant generated by it can be discharged from the waste water tank; and when the CNC machine tool is not working, that is, the transport trolley 9 releases its matching relationship with the CNC machine tool, the driving block 604 returns to its original position, and then the rotating rod 702 returns to its original position due to the action of the rotating spring 703, thereby driving the sealing block 704 and the moving block 701 to return to their original positions, and the sealing block 704 is again sealed and matched with the waste water tank.

[0051] In summary, the present invention provides a positioning and clamping device for a CNC machine, which first limits and positions the processing pallet through a limiting component to ensure that the processing pallet is installed in an accurate position to prevent the workpiece to be processed from being skewed; then, the processing pallet is pressed on the support member through a pressing and holding component to support and fix it, thereby ensuring the fixing stability of the processing pallet; and the rapid implementation of limiting and pressing and fixing accelerates the efficiency of later processing.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning and clamping device for a CNC machine, characterized in that: include: CNC equipment; A substrate, installed in the CNC device; A support member, mounted on the base plate, for supporting the processing tray; A limiting assembly, provided on the base plate, for limiting the movement and positioning of the processing tray; A pressing component is installed on the base plate and is used to press and fix the processing tray, and the pressing component can be moved away from and close to the processing tray; When the pressing assembly moves toward the processing tray, the pressing assembly presses the processing tray onto the supporting member to fix it; when the pressing assembly moves away from the processing tray, the pressing assembly separates from the processing tray, and the processing tray can be moved out of the CNC device.

2. The positioning and clamping device for a CNC machine according to claim 1, characterized in that: There are two pressing and holding components, and the two pressing and holding components are respectively located on both sides of the processing tray; Each of the pressing and holding assemblies comprises a pressing member and a driving member; The driving member is mounted on the base plate, the pressing member is mounted on the driving member, and the driving member drives the pressing member to move, so that the processing tray is pressed by the pressing member or the processing tray is separated from the pressing member.

3. The positioning and clamping device for CNC machine according to claim 2, characterized in that: The driving member includes a limiting rod, a cylinder and a connecting plate; The cylinder is mounted on the base plate, and the connecting plate is fixed to the piston rod of the cylinder; The limiting rod is installed on the connecting plate and is used to enable the connecting plate to move along the moving direction of the piston rod.

4. The positioning and clamping device for a CNC machine according to claim 2, characterized in that: The pressing member comprises a connecting block and a pressing block; The connecting block is fixedly mounted on the connecting plate, and the pressing block is fixedly mounted on the connecting block. The pressing block is used to press and fix the processing tray.

5. The positioning and clamping device for a CNC machine according to claim 4, characterized in that: The positioning and clamping device for a CNC machine also includes a bearing member; The bearing member is installed on the pressing assembly, and the bearing member moves with the pressing assembly to drive the processing tray to move; When the pressing assembly moves the processing tray toward the supporting member, the processing tray contacts the supporting member and is separated from the carrier, and then the pressing assembly presses the processing tray; When the pressing assembly moves away from the processing pallet, the carrying member causes the processing pallet to be separated from the supporting member, and the processing pallet can move out of the CNC device.

6. The positioning and clamping device for a CNC machine according to claim 5, characterized in that: The carrier comprises a first carrier plate and a second carrier plate; The first carrier plate and the second carrier plate are respectively installed on one of the connecting blocks; the first carrier plate and the second carrier plate are lower than the clamping block, the distance between the first carrier plate and the clamping block on the corresponding side is greater than the thickness of the processing pallet, and the distance between the second carrier plate and the clamping block on the corresponding side is greater than the thickness of the processing pallet.

7. The positioning and clamping device for a CNC machine according to claim 1, characterized in that: The limiting assembly includes a first blocking member; The first blocking member is used to block the movement of the processing tray; After the processing tray moves to a corresponding position toward the CNC device, the first blocking member restricts the processing tray from further moving.

8. The positioning and clamping device for a CNC machine according to claim 6, characterized in that: The pressing and holding component is provided with a limiting groove; The position limiting assembly further includes a second blocking member and a deviation correcting member; The first carrier plate and the second carrier plate are installed in the limiting groove to slide, and after sliding to corresponding positions in the CNC device, the first carrier plate and the second carrier plate stop sliding; The first carrier plate and the second carrier plate are located inside the CNC device and are fixedly connected via the second blocking member, the upper side of the second blocking member is higher than the upper sides of the first carrier plate and the second carrier plate, the second blocking member enables the first carrier plate and the second carrier plate to move synchronously, and the second blocking member can block the movement of the processing tray; The deviation-correcting parts are respectively installed on the first carrier plate and the second carrier plate, and are used to gather the processing tray toward the middle; When the processing pallet is pushed to move into the CNC device, the processing pallet moves to the first carrier plate and the second carrier plate and contacts the second blocking member. The processing pallet pushes the first carrier plate and the second carrier plate to move inward through the second blocking member. When the processing pallet causes the first carrier plate and the second carrier plate to move, the correcting member touches the processing pallet, causing the processing pallet to gather toward the middle.

9. The positioning and clamping device for a CNC machine according to claim 7 or 8, characterized in that: The position limiting assembly further includes a positioning member; The positioning member is installed on the base plate, and the positioning member is used for aligning the processing tray; When the processing pallet moves toward the supporting member, the positioning member enables the processing pallet to be corrected.

10. The positioning and clamping device for a CNC machine according to claim 8, characterized in that: A plurality of magnets are respectively mounted on the upper sides of the first carrier plate and the second carrier plate; when the processing pallet moves out of the CNC device, the processing pallet drives the first carrier plate and the second carrier plate to move via the magnets.

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