Clamping device of numerical control gantry boring and milling machine

Abstract

The utility model relates to the technical field of clamping devices, and discloses a clamping device of a numerical control gantry boring and milling machine, which is characterized in that the top ends of two connecting blocks are provided with mounting blocks, the inner walls of the mounting blocks are in threaded connection with bolts, the bottom ends of the bolts extend downwards to the inner walls of the connecting blocks, and the two ends of the mounting blocks are provided with sliding rods; and plane clamping blocks are arranged on the two sides of the two connecting blocks, curved surface clamping blocks are arranged at the top ends of the two plane clamping blocks, limiting grooves are formed in the upper surfaces of the two plane clamping blocks, and the sliding rods are connected to the inner walls of the limiting grooves in a clamped mode. Through the arrangement of the mounting blocks, the sliding rods and the curved surface clamping blocks, the mounting blocks at the tops of the two connecting blocks and the sliding rods move inwards together, when the sliding rods push the plane clamping blocks, the plane clamping blocks expand forwards and outwards, the plane clamping blocks slide and deviate outside the sliding rods through the limiting grooves, the bottom ends of the plane clamping blocks rotate in the positioning screw rods, and the curved surface clamping blocks are clamped. The two sides of a workpiece are clamped and fixed through the plane clamping blocks, and the tops of the two sides of the workpiece are fixed through the two curved-surface clamping blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping device equipment, in particular to a clamping device for a numerically controlled gantry milling and boring machine. Background Art

[0002] Gantry milling and boring machines, also known as gantry milling machines, are divided into portal frame milling machines and horizontal long-bed milling machines based on their different functions. Gantry milling machines have multiple milling cutters, allowing them to process workpieces at multiple angles. They offer high precision and efficiency, making them particularly suitable for mass production and machining large workpieces. When machining keyways on a spindle, due to its length, a horizontal milling and boring machine is required. When machining the spindle on a horizontal milling and boring machine, a fixture is required to position the spindle.

[0003] The application number is CN202322353238.X, which discloses a clamping device for a CNC gantry milling and boring machine, which is characterized in that it includes a supporting structure, a pressing structure, and a clamping structure, wherein the supporting structure is connected to the pressing structure, and the supporting structure is connected to the clamping structure; by arranging a limit frame, a screw rod A, a limit seat, a moving block, a spiral sleeve, a motor A, an electric telescopic rod, a clamping ring, and a spring, the clamping plate has a larger range of movement and the contact area between the clamping component and the workpiece is increased.

[0004] The clamping device of a CNC gantry milling and boring machine disclosed in the above document has the following defects: when the device clamps and fixes the workpiece, since different types of workpieces require different clamping surfaces, when the device clamps the workpiece with irregular surfaces, it cannot stably fix and cooperate with the workpiece, and lacks flexibility.

[0005] It can be seen from this that the existing clamping device does not have the function of clamping and fixing irregular workpieces. It is necessary to improve the existing deficiencies and provide a function that can clamp and fix irregular workpieces. Utility Model Content

[0006] The purpose of the utility model is to provide a clamping device for a CNC gantry milling and boring machine to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a clamping device for a CNC gantry milling and boring machine, comprising a connecting structure and a clamping structure, wherein the clamping structure is rotatably connected to the inner wall of the connecting structure, the connecting structure comprises two connecting blocks, the top ends of the two connecting blocks are provided with mounting blocks, the inner walls of the mounting blocks are threadedly connected with bolts, the bottom ends of the bolts extend downward to the inner walls of the connecting blocks, sliding rods are provided at both ends of the mounting blocks, plane clamping blocks are provided on both sides of the two connecting blocks, the top ends of the two plane clamping blocks are provided with curved surface clamping blocks, limiting grooves are provided on the upper surfaces of the two plane clamping blocks, and the sliding rods are clamped on the inner walls of the limiting grooves. The purpose of such arrangement is that during the use of the device, the workpiece is placed on the operating panel, and the rotating screws on the two fixed blocks are rotated. The two rotating screws drive the connecting block to advance toward the workpiece, and the bottom end of the connecting block is fixed by the connecting rod, and the top of the connecting block is rotated inward, and the mounting blocks and the slide rods on the top of the two connecting blocks move inward together. When the slide rod moves forward, the plane clamping block is driven inward by the limit slot. When the slide rod pushes the plane clamping block, the plane clamping block expands forward and outward. When the top of the plane clamping block deviates outward, the plane clamping block slides and deviates on the outside of the slide rod through the limit slot, and the bottom end of the plane clamping block is fixed to the operating panel by the positioning screw, and the bottom end of the plane clamping block is limited on both sides by the positioning block. The curved clamping block of the plane clamping block is driven forward by the positioning screw, and the bottom end of the plane clamping block rotates in the positioning screw, and the curved clamping block of the plane clamping block rotates toward the top of the workpiece. For workpieces with irregular surfaces, the two sides of the workpiece are clamped and fixed by the plane clamping block, and the two curved surface clamping blocks are fixed to the top of both sides of the workpiece, so that the workpiece is effectively fixed in the device, thereby improving the flexibility of the device.

[0009] Furthermore, the connecting structure includes an operating plate with fixed blocks on either side of the top of the operating plate. A rotating screw is threadedly connected to the inner wall of the two fixed blocks, with one end of the rotating screw being hinged to the inner wall of the connecting block. This arrangement allows the connecting block to be advanced toward the workpiece by rotating the rotating screws on the two fixed blocks during use.

[0010] Furthermore, the operation panel is provided with positioning blocks near the bottom ends of the two side planar clamping blocks, and the four planar clamping blocks are respectively located on the inner walls on both sides of the four positioning blocks. The purpose of this arrangement is to limit the bottom ends of the planar clamping blocks on both sides during use of the device through the positioning blocks.

[0011] Furthermore, connecting rods are rotatably connected to the inner walls of the two connecting blocks, with both ends of the connecting rods passing through the connecting blocks and extending to the inner walls of the positioning blocks on both sides. This arrangement is intended to ensure that when the device is in use, the bottom ends of the connecting blocks are fixed by the connecting rods, while the top ends of the connecting blocks rotate inward.

[0012] Furthermore, a positioning screw is threadedly connected to the inner wall of each side of the two positioning blocks, which are separated from each other. The positioning screw passes through the planar clamping block and the positioning block. This arrangement is intended to ensure that when the device is in use, the curved clamping block of the planar clamping block is driven forward by the positioning screw, and the bottom end of the planar clamping block rotates within the positioning screw.

[0013] Furthermore, the bottom end of the planar clamping block is rotatably connected to the outer wall of the positioning screw. The purpose of this arrangement is that when the device is in use, the bottom end of the planar clamping block is fixed to the operating panel via the positioning screw, and the curved clamping block of the planar clamping block is driven forward by the positioning screw, and the bottom end of the planar clamping block rotates within the positioning screw.

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

[0015] (1) The utility model is provided with a mounting block, a slide rod and a curved surface clamping block. The mounting blocks and the slide rod at the top of the two connecting blocks move inward together. When the slide rod moves forward, the plane clamping block is driven inward through the limit groove. When the slide rod pushes the plane clamping block, the plane clamping block expands forward and outward. When the top end of the plane clamping block is offset outward, the plane clamping block slides and offsets on the outside of the slide rod through the limit groove. The curved surface clamping block of the plane clamping block is driven forward by the positioning screw. The bottom end of the plane clamping block rotates in the positioning screw. The curved surface clamping block of the plane clamping block rotates toward the top of the workpiece. For workpieces with irregular surfaces, the two sides of the workpiece are clamped and fixed by the plane clamping blocks. The two curved surface clamping blocks fix the top of the two sides of the workpiece, so that the workpiece is effectively fixed in the device, thereby improving the flexibility of the device.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0019] Figure 2 This is a schematic diagram of the connection structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the partially disassembled structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the partially disassembled structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] In the figure: 1. Connection structure; 101. Operation panel; 102. Fixing block; 103. Rotating screw; 104. Connection block; 105. Mounting block; 106. Sliding rod; 107. Bolt; 2. Clamping structure; 201. Plane clamping block; 202. Curved clamping block; 203. Limiting groove; 204. Connection rod; 205. Positioning block; 206. Positioning screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 - Figure 4As shown, the utility model is a clamping device for a CNC gantry milling and boring machine, comprising a connecting structure 1 and a clamping structure 2. The clamping structure 2 is rotatably connected to the inner wall of the connecting structure 1. The connecting structure 1 comprises two connecting blocks 104. The top ends of the two connecting blocks 104 are provided with mounting blocks 105. Bolts 107 are threadedly connected to the inner walls of the mounting blocks 105. The bottom ends of the bolts 107 extend downward to the inner walls of the connecting blocks 104. Slide rods 106 are provided at both ends of the mounting blocks 105. Plane clamping blocks 201 are provided on both sides of the two connecting blocks 104. Curved clamping blocks 202 are provided at the top ends of the two planar clamping blocks 201. Limiting grooves 203 are provided on the upper surfaces of the two planar clamping blocks 201. The slide rods 106 are clamped on the inner walls of the limiting grooves 203. The purpose of such arrangement is that when the device is in use, the workpiece is placed on the operating plate 101, and the rotating screws 103 on the two fixed blocks 102 are rotated. The two rotating screws 103 drive the connecting block 104 to advance toward the workpiece, and the bottom end of the connecting block 104 is fixed by the connecting rod 204. The top end of the connecting block 104 is rotated inward, and the mounting blocks 105 and the sliding rod 106 on the top of the two connecting blocks 104 move inward together. When the sliding rod 106 moves forward, it drives the plane clamping block 201 to advance inward through the limiting groove 203. When the sliding rod 106 pushes the plane clamping block 201, the plane clamping block 201 expands forward and outward. When the top end of the plane clamping block 201 deviates outward, the plane clamping block 201 passes The limiting groove 203 slides and deflects outside the slide bar 106, and the bottom end of the plane clamp 201 is fixed to the operating panel 101 by the positioning screw 206. The bottom end of the plane clamp 201 is limited on both sides by the positioning block 205. The curved clamp 202 of the plane clamp 201 is driven forward by the positioning screw 206. The bottom end of the plane clamp 201 rotates in the positioning screw 206, and the curved clamp 202 of the plane clamp 201 rotates toward the top of the workpiece. For workpieces with irregular surfaces, the two sides of the workpiece are clamped and fixed by the plane clamp 201, and the two curved clamps 202 fix the top of both sides of the workpiece, so that the workpiece is effectively fixed in the device, thereby improving the flexibility of the device.

[0026] The connecting structure 1 comprises an operating plate 101, with fixed blocks 102 mounted on either side of the top of the operating plate 101. A rotating screw 103 is threadedly connected to the inner wall of the two fixed blocks 102, the inner wall facing away from each other. One end of the rotating screw 103 is hinged to the inner wall of the connecting block 104. This arrangement ensures that when the device is in use, rotating the rotating screws 103 on the two fixed blocks 102 drives the connecting block 104 toward the workpiece.

[0027] The operation panel 101 is provided with positioning blocks 205 at the bottom end near the two side planar clamping blocks 201, and the four planar clamping blocks 201 are respectively located on the inner walls on both sides of the four positioning blocks 205. The purpose of this arrangement is that during the use of the device, the positioning blocks 205 limit the bottom ends of the planar clamping blocks 201 on both sides.

[0028] Connecting rods 204 are rotatably connected to the inner walls of the two connecting blocks 104. The ends of the connecting rods 204 pass through the connecting blocks 104 and extend to the inner walls of the two side positioning blocks 205. This arrangement allows the bottom ends of the connecting blocks 104 to be fixed by the connecting rods 204 during use, while the top ends of the connecting blocks 104 rotate inward.

[0029] A positioning screw 206 is threadedly connected to the inner wall of each side away from the two positioning blocks 205. The positioning screw 206 passes through the flat clamping block 201 and the positioning block 205. The purpose of this arrangement is that when the device is in use, the curved clamping block 202 of the flat clamping block 201 is driven forward by the positioning screw 206, and the bottom end of the flat clamping block 201 rotates within the positioning screw 206.

[0030] The bottom end of the planar clamping block 201 is rotatably connected to the outer wall of the positioning screw 206. The purpose of this arrangement is that when the device is in use, the bottom end of the planar clamping block 201 is fixed to the operating panel 101 via the positioning screw 206, and the curved clamping block 202 of the planar clamping block 201 is driven forward by the positioning screw 206, and the bottom end of the planar clamping block 201 rotates within the positioning screw 206.

[0031] When in use, the device is used, and the workpiece is placed on the operating plate 101, and the rotating screws 103 on the two fixed blocks 102 are rotated. The two rotating screws 103 drive the connecting block 104 to advance toward the workpiece, and the bottom end of the connecting block 104 is fixed by the connecting rod 204. The top end of the connecting block 104 is rotated inward, and the mounting blocks 105 and the sliding rod 106 on the top of the two connecting blocks 104 move inward together. When the sliding rod 106 moves forward, it drives the plane clamping block 201 to advance inward through the limiting groove 203. When the sliding rod 106 pushes the plane clamping block 201, the plane clamping block 201 expands forward and outward. When the top end of the plane clamping block 201 deviates outward, the plane clamping block 201 passes through the limiting groove 203. The groove 203 slides and deflects outside the slide bar 106, and the bottom end of the plane clamp 201 is fixed to the operating panel 101 by the positioning screw 206. The bottom end of the plane clamp 201 is limited on both sides by the positioning block 205. The curved clamp 202 of the plane clamp 201 is driven forward by the positioning screw 206. The bottom end of the plane clamp 201 rotates in the positioning screw 206, and the curved clamp 202 of the plane clamp 201 rotates toward the top of the workpiece. For workpieces with irregular surfaces, the two sides of the workpiece are clamped and fixed by the plane clamp 201, and the two curved clamps 202 fix the tops of both sides of the workpiece, so that the workpiece is effectively fixed in the device, thereby improving the flexibility of the device.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping device for a CNC gantry milling and boring machine, comprising a connecting structure (1) and a clamping structure (2), characterized in that: The clamping structure (2) is rotatably connected to the inner wall of the connecting structure (1), and the connecting structure (1) includes two connecting blocks (104), the top ends of the two connecting blocks (104) are provided with mounting blocks (105), the inner walls of the mounting blocks (105) are threadedly connected with bolts (107), the bottom ends of the bolts (107) extend downward to the inner walls of the connecting blocks (104), and sliding rods (106) are provided at both ends of the mounting blocks (105). Plane clamping blocks (201) are provided on both sides of the two connecting blocks (104), and curved clamping blocks (202) are provided at the top ends of the two planar clamping blocks (201). Limiting grooves (203) are provided on the upper surfaces of the two planar clamping blocks (201), and the sliding rods (106) are clamped on the inner walls of the limiting grooves (203).

2. The clamping device for a CNC gantry milling and boring machine according to claim 1, characterized in that: The connection structure (1) comprises an operating plate (101), fixed blocks (102) are provided on both sides of the top of the operating plate (101), a rotating screw (103) is threadedly connected on the inner wall of the side away from the two fixed blocks (102), and one end of the rotating screw (103) is hinged on the inner wall of the connection block (104).

3. The clamping device of a CNC gantry milling and boring machine according to claim 2, characterized in that: The operating panel (101) is provided with a positioning block (205) at the bottom end close to the two side plane clamping blocks (201), and the four plane clamping blocks (201) are respectively located on the two side inner walls of the four positioning blocks (205).

4. The clamping device for a CNC gantry milling and boring machine according to claim 3, characterized in that: A connecting rod (204) is rotatably connected to the inner walls of the two connecting blocks (104), and both ends of the connecting rod (204) pass through the connecting blocks (104). Both ends of the connecting rod (204) extend to the inner walls of the positioning blocks (205) on both sides respectively.

5. The clamping device for a CNC gantry milling and boring machine according to claim 3, characterized in that: A positioning screw (206) is threadedly connected on the inner wall of each side away from the two positioning blocks (205), and the positioning screw (206) passes through the plane clamping block (201) and the positioning block (205).

6. The clamping device for a CNC gantry milling and boring machine according to claim 5, characterized in that: The bottom end of the planar clamping block (201) is rotatably connected to the outer wall of the positioning screw (206).

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