Double-clamp device for numerical control drilling machine equipment

Abstract

The utility model discloses a double-clamp device for numerical control drilling machine equipment, and relates to the technical field of numerical control machine tools. The clamping device comprises a base assembly, a mounting seat and a clamping assembly, two groups of moving plates are movably connected to two sides in a mounting frame in the base assembly, a first lead screw is rotationally connected to the interior of the mounting frame in the transverse direction, a second sliding block is arranged on the outer wall of the first lead screw in a threaded and sleeved mode, and the second sliding block is fixedly connected with the lower surfaces of the moving plates through a positioning rod. The first lead screw and the second sliding block in the base assembly drive the two sets of moving plates and the clamping structure to move synchronously, automatic feeding and discharging of the numerical control drilling machine are achieved, the problem that only a single part can be machined in the prior art is solved, a mounting plate is driven to rotate through a gear and a rack in the clamping assembly, and machining efficiency is improved. And the inclination angle of the part is adjusted, and the problem that in the prior art, inclined hole forming is not convenient to conduct on the part is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, in particular to a double clamp device for numerical control drilling machine equipment. Background Art

[0002] With the development of industry, more and more complex, precise and multi-variety parts are being processed. In order to process them efficiently, various CNC machine tools are often used. CNC drilling machines are a common type of CNC machine tools, which are mainly used to make holes in parts. At the same time, in the use of CNC drilling machines, in order to facilitate the fixing of parts, clamping devices are generally used. The parts are clamped at the specified position of the CNC drilling machine through the clamping device, which improves the accuracy of drilling.

[0003] The existing document with publication number CN218776157U discloses a quick positioning fixture for a CNC multi-axis drilling machine, comprising a support plate, the upper surface of which is fixedly connected to the lower surface of a mounting seat, one side of the second clamping plate is fixedly connected to one end corresponding to a support rod, a second slide groove is provided on the upper surface of the fixing sleeve, and the other end of the support rod is fixedly connected to one side corresponding to a guide block;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The quick positioning fixture mentioned above has a second clamping plate slidably connected to the upper surface of the workbench, and a first clamping plate is fixedly connected to the upper surface of the workbench. The first clamping plate and the second clamping plate are used to clamp and fix the parts. However, it can only fix one part at a time, which is not convenient for processing multiple parts at the same time.

[0006] 2. The above-mentioned quick positioning fixture has a second clamping plate slidably connected to the upper surface of its workbench, and an air pump is fixedly connected to the upper surface of the workbench. One end of the air pump is connected to the second clamping plate through a limit rod. The second clamping plate is driven by the air pump to clamp the parts, but it cannot adjust the inclination of the parts, which makes it inconvenient to open inclined holes in the parts.

[0007] To this end, we provide a double clamp device for a CNC drilling machine to solve the above-mentioned problems. Utility Model Content

[0008] The purpose of the utility model is to provide a double clamp device for a CNC drilling machine, which drives two groups of movable plates and a clamping structure to move synchronously through the first screw rod and the second slider in the base assembly, thereby realizing automatic loading and unloading of the CNC drilling machine, solving the existing problem that only a single part can be processed, and drives the mounting plate to rotate through the gear and rack in the clamping assembly, thereby realizing the adjustment of the inclination angle of the part, solving the existing problem that it is inconvenient to open inclined holes in the parts.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is a double clamp device for CNC drilling machine equipment, comprising a base assembly, two sets of movable plates are movably connected on both sides of the interior of the installation frame in the base assembly, the upper surfaces of the two sets of movable plates are movably connected with mounting seats along the longitudinal direction, a first screw rod is rotatably connected to the interior of the installation frame along the transverse direction, a second slider is threadedly sleeved on the outer wall of the first screw rod, and the second slider is fixedly connected to the lower surface of the movable plate through a positioning rod;

[0011] A clamping assembly is provided on the top of the mounting seat, and side plates in the clamping assembly are respectively fixedly connected to both sides of the top of the mounting seat, and mounting plates are movably connected between the side plates. Rotating shafts are welded on the outer walls on both sides of the mounting plates, and the ends of the rotating shafts away from the mounting plates rotate through the side plates and are fixedly connected with gears, and racks are movably connected to the lower side of the outer wall of the side plate away from the mounting plate along the longitudinal direction, and the gears and the racks are meshed with each other.

[0012] The utility model is further configured such that the front and rear ends of the interior of the installation frame are both fixedly connected with sliding rods in the transverse direction, the outer walls of the sliding rods are slidably sleeved with first sliding blocks, and the tops of the first sliding blocks are respectively welded to the front and rear ends of the lower surface of the moving plate.

[0013] The utility model is further configured as follows: a first hydraulic cylinder is fixedly connected to the central position of the top front end of the mounting frame, a push plate is fixedly connected to the piston shaft of the first hydraulic cylinder, grooves are provided on the rear end surface of the push plate and the front end surface of the mounting seat, and electromagnets are fixedly connected inside the grooves.

[0014] The utility model is further configured such that one end of the first screw rod rotates through an outer wall of one side of the mounting frame and extends to the outside of the mounting frame, and a driving motor is fixedly connected to one side of the front end surface of the mounting frame through a motor frame, and pulleys are both provided on one end of the first screw rod located on the outside of the mounting frame and on the output shaft of the driving motor, and the pulleys are connected for transmission via a transmission belt.

[0015] The utility model is further configured as follows: L-shaped plates are welded on the front and rear end surfaces of the second slider, the positioning rods are movably inserted through the longitudinal support arms of the L-shaped plate, the top ends of the positioning rods are clearance-fitted inside the positioning holes located around the lower surface of the movable plate, the bottom end of the positioning rods is welded with a limiting plate, a return spring is fixedly connected to the center position of the upper surface of the limiting plate, the top end of the return spring is fixedly connected to the longitudinal support arms of the L-shaped plate, and a pull ring is welded on the lower surface of the limiting plate.

[0016] The utility model is further configured such that arc grooves are provided at the front and rear ends of the outer walls of the side plates, connecting rods are movably penetrated inside the arc grooves, and one end of the connecting rods is respectively welded to the front and rear ends of the outer walls on both sides of the mounting plate.

[0017] The utility model is further configured such that a fixed clamping block is fixedly connected to the rear end of the upper surface of the mounting plate, a fixed plate is fixedly connected to the front end of the upper surface of the mounting plate, a second hydraulic cylinder is fixedly connected to the front end surface of the fixed plate, and a movable clamping block is fixedly connected to the piston shaft of the second hydraulic cylinder.

[0018] The utility model is further configured as follows: installation grooves are provided on both sides of the facing surfaces of the fixed clamping block and the movable clamping block, extension blocks are movably connected inside the installation grooves, second bearing seats are fixedly connected on both sides of the tops of the fixed clamping block and the movable clamping block, a bidirectional screw rod is rotatably connected between the second bearing seats, a rubber sleeve is bonded to the center position of the outer wall of the bidirectional screw rod, a fourth slider is threadedly sleeved on the outer walls of both sides of the bidirectional screw rod, and the bottom of the fourth slider passes through the slide groove at the top of the installation groove and is welded to the top side of the extension block.

[0019] The utility model is further configured such that the front and rear ends of the outer wall of the side plate away from the mounting plate are fixedly connected to the first bearing seats, a second screw rod is rotatably connected between the first bearing seats, the front end of the second screw rod rotates through the first bearing seat located in the front and is fixedly connected to a knob, a third slider is threadedly sleeved on the outer wall of the second screw rod, and the bottom of the rack is welded to the top of the third slider.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model sets a base assembly, drives the first screw rod to rotate synchronously through a driving motor, and under the action of the threaded connection between the first screw rod and the second slider, the second slider drives the movable plate to move, drives the parts clamped on the mounting seat to move, realizes automatic loading and unloading of the CNC drilling machine, and is convenient for processing multiple parts at the same time.

[0022] 2. The utility model sets a clamping assembly, drives the rack to move through the second screw rod, and under the action of the meshing connection between the rack and the gear, the gear drives the mounting plate to rotate through the rotating shaft, drives the parts clamped on the mounting plate to rotate, so that the surface to be processed of the part and the drill bit of the CNC drilling machine maintain a certain angle, which is convenient for opening oblique holes in the parts.

[0023] 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

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of a double clamp device for a CNC drilling machine;

[0026] Figure 2 It is a structural schematic diagram of the base assembly of the utility model;

[0027] Figure 3 This is a bottom view of the movable plate of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the positioning rod of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the mounting seat of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the clamping assembly of the utility model;

[0031] Figure 7 It is a top view of the mounting plate of the utility model;

[0032] Figure 8 It is a schematic diagram of the structure of the rack of the utility model;

[0033] Fig. 9 This is a structural disassembly diagram of the dynamic clamping block of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Base assembly; 101. Mounting frame; 101a. Slide bar; 101b. First hydraulic cylinder; 101c. Push plate; 102. Moving plate; 102a. First slider; 102b. Positioning hole; 103. First screw rod; 103a. Pulley; 103b. Transmission belt; 104. Second slider; 105. Positioning rod; 105a. L-shaped plate; 105b. Limiting plate; 105c. Return spring; 105d. Pull ring; 106. Driving motor; 106a. Motor frame; 2. Mounting seat; 201. Groove; 202. Electromagnet; 3. Clamping assembly Parts; 301, side plate; 301a, arc groove; 302, mounting plate; 302a, connecting rod; 302b, fixed plate; 303, rotating shaft; 304, gear; 305, rack; 305a, first bearing seat; 305b, second screw rod; 305c, knob; 305d, third slider; 306, fixed clamping block; 307, second hydraulic cylinder; 308, movable clamping block; 308a, mounting groove; 308b, second bearing seat; 308c, bidirectional screw rod; 308d, rubber sleeve; 308e, slide groove; 309, extension block; 309a, fourth slider. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0038] See also Figure 1-5 As shown, it is the first embodiment of the utility model, which provides a double clamp device for CNC drilling machine equipment, including a base assembly 1 and a mounting seat 2, and the base assembly 1 includes a mounting frame 101, a movable plate 102, a first screw rod 103 and a second slider 104. The two groups of movable plates 102 are driven to move synchronously through the threaded connection between the first screw rod 103 and the second slider 104, thereby realizing automatic loading and unloading of the CNC drilling machine, and solving the existing problem that only a single part can be processed.

[0039] Specifically, two groups of movable plates 102 are movably connected on both sides of the installation frame 101, and the upper surfaces of the two groups of movable plates 102 are movably connected with the mounting seat 2 along the longitudinal direction. The interior of the installation frame 101 is rotatably connected with a first screw rod 103 along the transverse direction, and a second slider 104 is threadedly sleeved on the outer wall of the first screw rod 103. The second slider 104 is fixedly connected to the lower surface of the movable plate 102 through a positioning rod 105. The installation frame 101 is set to install structures such as the movable plate 102 and the first screw rod 103, and the mounting seat 2 is installed through the setting of the movable plate 102, while driving the parts on the mounting seat 2 to move. The threaded connection between the first screw rod 103 and the second slider 104 is realized by driving the movable plate 102 to move inside the installation frame 101.

[0040] Furthermore, the front and rear ends of the interior of the installation frame 101 are both fixedly connected with a slide bar 101a in the transverse direction, and the outer wall of the slide bar 101a is slidably sleeved with a first slider 102a, and the top of the first slider 102a is respectively welded to the front and rear ends of the lower surface of the moving plate 102. The arrangement of the slide bar 101a and the first slider 102a enables the moving plate 102 to be movably installed in the installation frame 101;

[0041] A first hydraulic cylinder 101b is fixedly connected to the center position of the front end of the top of the mounting frame 101, and a push plate 101c is fixedly connected to the piston shaft of the first hydraulic cylinder 101b. A groove 201 is provided on the rear end surface of the push plate 101c and the front end surface of the mounting seat 2, and an electromagnet 202 is fixedly connected inside the groove 201. The first hydraulic cylinder 101b and the push plate 101c are used to drive the mounting seat 2 to move longitudinally on the moving plate 102 to adjust the distance between the part and the drill bit of the CNC drilling machine, and the groove 201 is used to install the electromagnet 202, and the push plate 101c and the mounting seat 2 are fixed by the setting of the electromagnet 202.

[0042] One end of the first screw rod 103 rotates to penetrate the outer wall of one side of the installation frame 101 and extends to the outside of the installation frame 101. One side of the front end surface of the installation frame 101 is fixedly connected to the drive motor 106 through the motor frame 106a. The end of the first screw rod 103 located on the outside of the installation frame 101 and the output shaft of the drive motor 106 are both sleeved with pulleys 103a, and the pulleys 103a are connected to each other through a transmission belt 103b. The setting of the pulley 103a and the transmission belt 103b can drive the first screw rod 103 to rotate, and the setting of the drive motor 106 drives the pulley 103a to rotate, and the setting of the motor frame 106a is used to install the drive motor 106;

[0043] L-shaped plates 105a are welded on the front and rear end surfaces of the second slider 104, and the positioning rods 105 are respectively movably inserted through the two sides of the longitudinal support arms of the L-shaped plate 105a. The top ends of the positioning rods 105 are clearance-fitted in the positioning holes 102b located around the lower surface of the movable plate 102. A limiting plate 105b is welded on the bottom end of the positioning rod 105, and a return spring 105c is fixedly connected to the center position of the upper surface of the limiting plate 105b. The top end of the return spring 105c is fixedly connected to the longitudinal support arms of the L-shaped plate 105a, and a pull ring 105d is welded on the lower surface of the limiting plate 105b. It is configured to install the positioning rod 105 on the second slider 104, and to connect the second slider 104 and the movable plate 102 through the clearance fit between the positioning rod 105 and the positioning hole 102b, so that the user can choose to move one group or two groups of movable plates 102 at the same time according to needs. The setting of the limit plate 105b is used to limit the movement distance of the positioning rod 105, and the automatic resetting of the positioning rod 105 is realized by the setting of the reset spring 105c. The setting of the pull ring 105d facilitates the application of external force to the limit plate 105b to move the positioning rod 105.

[0044] The operation process of this embodiment is as follows: first, two groups of parts are clamped on two groups of mounting seats 2 respectively, and one group of parts is processed by a CNC drilling machine. When the processing of this group of parts is completed, the drive motor 106 is started, and the output shaft of the drive motor 106 drives the pulley 103a to rotate synchronously, and under the transmission action of the transmission belt 103b, the pulley 103a drives the first screw rod 103 to rotate synchronously, and at the same time, under the action of the threaded connection between the first screw rod 103 and the second slider 104, the second slider 104 drives the movable plate 102 to move synchronously, so that the processed parts are away from the CNC drilling machine, and the unprocessed parts are moved to the processing position of the CNC drilling machine, and the unprocessed parts are processed again by the CNC drilling machine, and at the same time, the processed parts are removed and an unprocessed part is clamped again. Specific embodiment 2

[0046] See also Figure 6-9 As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: a clamping assembly 3 is arranged on the top of the mounting seat 2, and the clamping assembly 3 includes a side plate 301, a mounting plate 302, a rotating shaft 303, a gear 304 and a rack 305. The gear 304 is driven to rotate by the rack 305, and the mounting plate 302 is driven to rotate by the gear 304 and the rotating shaft 303, thereby driving the parts to rotate and solving the existing problem of inconvenience in opening oblique holes in the parts.

[0047] Specifically, the side plates 301 are respectively fixedly connected to the two sides of the top of the mounting base 2, and the mounting plates 302 are movably connected between the side plates 301. The outer walls of the two sides of the mounting plates 302 are welded with rotating shafts 303. The ends of the rotating shafts 303 away from the mounting plates 302 rotate through the side plates 301 and are fixedly connected with gears 304. The lower part of the outer wall of the side plate 301 away from the mounting plates 302 is movably connected with racks 305 in the longitudinal direction. The gears 304 and the racks 305 are meshed with each other. The side plates 301 are arranged to movably install the mounting plates 302, and the mounting plates 302 are arranged to fix parts. The rotating shafts 303 and the gears 304 are arranged to drive the mounting plates 302 to rotate. At the same time, the gears 304 are driven to rotate through the arrangement of the racks 305, thereby driving the mounting plates 302 to rotate.

[0048] Furthermore, the front and rear ends of the outer wall of the side plate 301 are both provided with arc grooves 301a, and the interior of the arc grooves 301a is movably penetrated by connecting rods 302a, and one end of the connecting rods 302a is respectively welded to the front and rear ends of the outer walls on both sides of the mounting plate 302. The arrangement of the arc grooves 301a and the connecting rods 302a realizes the movable installation between the side plate 301 and the mounting plate 302;

[0049] The rear end of the upper surface of the mounting plate 302 is fixedly connected with a fixed clamp block 306, the front end of the upper surface of the mounting plate 302 is fixedly connected with a fixed plate 302b, the front end surface of the fixed plate 302b is fixedly connected with a second hydraulic cylinder 307, the piston shaft of the second hydraulic cylinder 307 is fixedly connected with a movable clamp block 308, the arrangement of the fixed clamp block 306 and the movable clamp block 308 realizes the clamping of the parts on the mounting plate 302, and the arrangement of the fixed plate 302b is used to install the second hydraulic cylinder 307, and the movable clamp block 308 is driven to move by the second hydraulic cylinder 307;

[0050] The fixed clamp block 306 and the movable clamp block 308 have mounting grooves 308a on both sides of the facing surfaces, and the interior of the mounting grooves 308a is movably connected with extension blocks 309, and the tops of the fixed clamp block 306 and the movable clamp block 308 are fixedly connected with second bearing seats 308b on both sides, and a bidirectional screw rod 308c is rotatably connected between the second bearing seats 308b, and a rubber sleeve 308d is bonded to the center of the outer wall of the bidirectional screw rod 308c, and a fourth slider 309a is threadedly sleeved on the outer walls of both sides of the bidirectional screw rod 308c, and the bottom of the fourth slider 309a passes through the mounting groove The slide groove 308e at the top of 308a is welded to the top side of the extension block 309. The installation groove 308a is used to install the extension block 309, and the extension block 309 is used to increase the length of the fixed clamp block 306 and the movable clamp block 308, so as to facilitate the clamping of parts of different sizes. The second bearing seat 308b is used to install the bidirectional screw rod 308c, and the threaded connection between the bidirectional screw rod 308c and the fourth slider 309a is used to drive the extension block 309 to move relative to the fixed clamp block 306 or the movable clamp block 308.

[0051] The front and rear ends of the outer wall of the side plate 301 away from the mounting plate 302 are fixedly connected to the first bearing seat 305a, and the second screw rod 305b is rotatably connected between the first bearing seat 305a. The front end of the second screw rod 305b rotates through the first bearing seat 305a located in the front and is fixedly connected to the knob 305c. The outer wall of the second screw rod 305b is threadedly sleeved with a third slider 305d, and the bottom of the rack 305 is welded to the top of the third slider 305d. The first bearing seat 305a is used to install the second screw rod 305b, and through the threaded connection between the second screw rod 305b and the third slider 305d, the rack 305 is driven to move longitudinally relative to the gear 304. At the same time, the setting of the knob 305c facilitates the rotation of the second screw rod 305b.

[0052] The rest of the structure is the same as that of the first embodiment.

[0053] The operation process of this embodiment is as follows: first, the part is placed between the fixed clamping block 306 and the movable clamping block 308, and the second hydraulic cylinder 307 is started. The movable clamping block 308 is driven to move by the piston shaft of the second hydraulic cylinder 307, so that the part is clamped. Then, the knob 305c is rotated, and the knob 305c drives the second screw rod 305b to rotate synchronously. Under the action of the threaded connection between the second screw rod 305b and the third slider 305d, the third slider 305d drives the rack 305 to move longitudinally. At this time, under the action of the meshing connection between the rack 305 and the gear 304, the gear 304 drives the mounting plate 302 to rotate through the rotating shaft 303, and drives the part to rotate. Finally, the drill bit of the CNC drilling machine is used to drill a hole in the part, so as to realize the opening of an inclined hole in the part.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double clamp device for a CNC drilling machine, comprising a base assembly (1), characterized in that: Two sets of movable plates (102) are movably connected to the inside of the installation frame (101) in the base assembly (1), and the upper surfaces of the two sets of movable plates (102) are movably connected to the mounting seats (2) in the longitudinal direction. A first screw rod (103) is rotatably connected to the inside of the installation frame (101) in the transverse direction, and a second slider (104) is threadedly sleeved on the outer wall of the first screw rod (103). The second slider (104) is fixedly connected to the lower surface of the movable plate (102) via a positioning rod (105); The top of the mounting seat (2) is provided with a clamping assembly (3), and the side plates (301) in the clamping assembly (3) are respectively fixedly connected to the two sides of the top of the mounting seat (2), and the mounting plates (302) are movably connected between the side plates (301), and the outer walls on both sides of the mounting plates (302) are welded with rotating shafts (303), and the ends of the rotating shafts (303) away from the mounting plates (302) are rotated to penetrate the side plates (301) and are fixedly connected with gears (304), and the lower part of the outer wall of the side plate (301) away from the mounting plates (302) is movably connected with racks (305) in the longitudinal direction, and the gears (304) and the racks (305) are meshed with each other.

2. A double clamp device for a CNC drilling machine according to claim 1, characterized in that: The front and rear ends of the interior of the installation frame (101) are both fixedly connected with a sliding rod (101a) in a transverse direction, and a first sliding block (102a) is slidably sleeved on the outer wall of the sliding rod (101a), and the top of the first sliding block (102a) is respectively welded to the front and rear ends of the lower surface of the movable plate (102).

3. A double clamp device for a CNC drilling machine according to claim 1, characterized in that: A first hydraulic cylinder (101b) is fixedly connected to the center position of the top front end of the installation frame (101), and a push plate (101c) is fixedly connected to the piston shaft of the first hydraulic cylinder (101b), a groove (201) is provided on the rear end surface of the push plate (101c) and the front end surface of the installation seat (2), and an electromagnet (202) is fixedly connected to the inside of the groove (201).

4. A double clamp device for a CNC drilling machine according to claim 1, characterized in that: One end of the first screw rod (103) rotates to penetrate an outer wall of one side of the installation frame (101) and extends to the outside of the installation frame (101), and a front end surface of the installation frame (101) is fixedly connected to a drive motor (106) via a motor frame (106a), and a pulley (103a) is sleeved on one end of the first screw rod (103) located outside the installation frame (101) and an output shaft of the drive motor (106), and the pulleys (103a) are connected to each other through a transmission belt (103b).

5. The double clamp device for a CNC drilling machine according to claim 1, characterized in that: L-shaped plates (105a) are welded to the front and rear end surfaces of the second sliding block (104); the positioning rod (105) is movably connected to both sides of the longitudinal support arm of the L-shaped plate (105a); and the top end of the positioning rod (105) is loosely fitted in the positioning hole (102b) located around the lower surface of the movable plate (102); a limiting plate (105b) is welded to the bottom end of the positioning rod (105); and a return spring (105c) is fixedly connected to the center position of the upper surface of the limiting plate (105b); the top end of the return spring (105c) is fixedly connected to the longitudinal support arm of the L-shaped plate (105a); and a pull ring (105d) is welded to the lower surface of the limiting plate (105b).

6. A double clamp device for a CNC drilling machine according to claim 1, characterized in that: The front and rear ends of the outer walls of the side plates (301) are both provided with arc-shaped grooves (301a), and connecting rods (302a) are movably penetrated inside the arc-shaped grooves (301a), and one end of the connecting rods (302a) is respectively welded to the front and rear ends of the outer walls on both sides of the mounting plate (302).

7. A double clamp device for a CNC drilling machine according to claim 6, characterized in that: The rear end of the upper surface of the mounting plate (302) is fixedly connected to a fixed clamping block (306), and the front end of the upper surface of the mounting plate (302) is fixedly connected to a fixed plate (302b), the front end surface of the fixed plate (302b) is fixedly connected to a second hydraulic cylinder (307), and the piston shaft of the second hydraulic cylinder (307) is fixedly connected to a movable clamping block (308).

8. A double clamp device for a CNC drilling machine according to claim 7, characterized in that: The fixed clamp block (306) and the movable clamp block (308) are provided with mounting grooves (308a) on both sides of the facing surfaces, and the interior of the mounting grooves (308a) is movably connected to an extension block (309), the top sides of the fixed clamp block (306) and the movable clamp block (308) are fixedly connected to second bearing seats (308b), and a bidirectional screw rod (308c) is rotatably connected between the second bearing seats (308b), a rubber sleeve (308d) is bonded to the center of the outer wall of the bidirectional screw rod (308c), and fourth sliding blocks (309a) are threadedly sleeved on the outer walls of both sides of the bidirectional screw rod (308c), and the bottom of the fourth sliding block (309a) passes through the sliding groove (308e) located at the top of the mounting groove (308a) and is welded to the top side of the extension block (309).

9. A double clamp device for a CNC drilling machine according to claim 1, characterized in that: The front and rear ends of the outer wall of the side of the side plate (301) away from the mounting plate (302) are fixedly connected to the first bearing seat (305a), and the second screw rod (305b) is rotatably connected between the first bearing seat (305a), the front end of the second screw rod (305b) rotates through the first bearing seat (305a) located in the front and is fixedly connected to the knob (305c), and the outer wall of the second screw rod (305b) is threadedly sleeved with a third slider (305d), and the bottom of the rack (305) is welded to the top of the third slider (305d).

Images