Enhanced drilling and tapping center

Abstract

The utility model discloses an enhanced drilling and tapping center which comprises a first base plate and a second base plate, the upper surface of the first base plate and the upper surface of the second base plate are each provided with a strip-shaped through hole extending in the left-right direction, two first movable blocks are arranged away from each other, and the upper end face of each first movable block is higher than the upper surface of the first base plate and the upper surface of the second base plate. When the baffle moves to a second position along with the air cylinder, the upper end face of the baffle is higher than the upper surface of the first base plate and the upper surface of the second base plate, the shell, the first tool bit and the second tool bit are arranged corresponding to the first base plate and the second base plate respectively, a sliding rod is installed at the upper end of the tool rest movably embedded into the guide groove, and the lower end of the hydraulic rod is connected with one end of the sliding rod. According to the utility model, two groups of small-size workpieces can be clamped and positioned at the same time, and the two groups of small-size workpieces can be synchronously machined through the two tool bits; and one group of large-size workpieces can be clamped and positioned, the workpieces can be machined through one tool bit, and the damage of the other tool bit to the workpieces can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to an enhanced drilling and tapping center. Background Technology

[0002] CNC machining centers are high-efficiency automated machine tools, consisting of mechanical equipment and a CNC system, specifically designed for machining complex parts. Currently, each machining center has its own independent machining area. When multiple products need to be processed simultaneously, more machining centers must be purchased, resulting in large space requirements and high costs. The clamping mechanism of a CNC machining center typically uses guide rails to drive clamping plates for stable workpiece clamping. To accommodate workpieces of different sizes, the guide rail length needs to be increased, leading to decreased clamping stability or higher requirements for the guide rails, and increased machining costs. Utility Model Content

[0003] The purpose of this invention is to provide an enhanced drilling and tapping center that can meet the processing needs of various workpieces with large size differences, thereby improving the convenience and efficiency of processing.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: an enhanced drilling and tapping center, comprising: a machine base, a three-axis drive assembly disposed above the machine base, and a tool assembly mounted on the three-axis drive assembly. The machine base disposed below the tool assembly is formed by splicing a first base plate and a second base plate arranged in sequence. Each of the first base plate and the second base plate has a strip-shaped through hole extending in the left-right direction on its upper surface. A first movable block and a second movable block are movably disposed in each of the strip-shaped through holes. A bidirectional lead screw extending in the left-right direction is rotatably mounted on the lower surface of each of the first base plate and the second base plate on one side of the strip-shaped through hole. The lower ends of the first movable block and the second movable block are threadedly connected to the corresponding bidirectional lead screw through a first connecting block, so that the first movable block and the second movable block located in the same strip-shaped through hole can move towards each other with the bidirectional lead screw.

[0005] The two first movable blocks are arranged far apart from each other, and the upper surface of each first movable block is higher than the upper surface of the first substrate and the second substrate. The two second movable blocks are arranged close to each other, and the upper surface of each second movable block is lower than the upper surface of the first substrate and the second substrate. Each second movable block has a vertically extending groove on its upper surface. A baffle is movably embedded in the groove and connected to the piston rod of a cylinder. When the baffle moves with the cylinder to the first position, its upper surface is flush with the upper surface of the first substrate and the second substrate. When the baffle moves with the cylinder to the second position, its upper surface is higher than the upper surface of the first substrate and the second substrate.

[0006] The cutting tool assembly further includes: a housing and a first cutting head and a second cutting head respectively corresponding to the first substrate and the second substrate. The upper ends of the first cutting head and the second cutting head, which extend outward from the housing, are each mounted in a support block disposed in the housing via a tool holder. Each of the two support blocks rotatably mounted in the housing has a synchronous pulley mounted at one end. The two synchronous pulleys are connected by a synchronous belt drive. A motor that is drively connected to any one of the support blocks is mounted on the upper surface of the housing.

[0007] A guide groove for embedding a tool holder is formed on the lower end face of the strip-shaped support block. A sliding rod is installed on the upper end of the tool holder, which is movably embedded in the guide groove. The two ends of the sliding rod extend outward from the strip-shaped grooves formed on the two side surfaces of the support block and slide in cooperation with the corresponding strip-shaped grooves. A hydraulic rod is installed on one side surface of the support block and above the sliding rod. The lower end of the hydraulic rod is connected to one end of the sliding rod.

[0008] The following are further improvements to the above technical solution:

[0009] 1. In the above scheme, the piston rod of the hydraulic rod is connected to the sliding rod through a hinge.

[0010] 2. In the above scheme, a guide rail is provided on the lower surface of the first substrate and the second substrate on the other side of the strip-shaped through hole, and the lower ends of the first movable block and the second movable block are movably connected to the corresponding guide rail through a second connecting block.

[0011] 3. In the above scheme, each of the guide rails is mounted on the first substrate and the second substrate by fixing blocks respectively disposed at both ends of the guide rail.

[0012] 4. In the above scheme, a clearance groove communicating with the slide is opened on one side surface of the second movable block, one end of a transition plate passes through the clearance groove and is connected to the baffle in the slide, and the other end of the transition plate is connected to the piston rod of the cylinder installed on the second movable block.

[0013] 5. In the above scheme, each of the bidirectional lead screws is rotatably mounted on the first base plate and the second base plate through at least two spaced bearing seats.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] This utility model relates to an enhanced drilling and tapping center. The machine base is constructed by sequentially assembling a first base plate and a second base plate. Each of the first and second base plates has a strip-shaped through-hole extending in the left-right direction on its upper surface. A first movable block and a second movable block located within the same strip-shaped through-hole can move towards each other with a bidirectional lead screw. The two first movable blocks are spaced far apart, and the upper surface of each first movable block is higher than the upper surfaces of the first and second base plates. The two second movable blocks are close together, and the upper surface of each second movable block is lower than the upper surface of the first base plate. On the upper surface of the second substrate, each of the upper ends of the second movable blocks has a vertically extending groove. A baffle is movably embedded in the groove and connected to the piston rod of a cylinder. When the baffle moves with the cylinder to the first position, its upper end is flush with the upper surfaces of the first and second substrates. When the baffle moves with the cylinder to the second position, its upper end is higher than the upper surfaces of the first and second substrates. The cutting tool assembly includes: a housing and a first cutting head and a second cutting head respectively corresponding to the first and second substrates. The lower ends of the first cutting head and the second cutting head extend outward from the housing. Each of the two cutting heads is mounted at its upper end within a support block housed in the housing via a tool holder. Each of the two rotatably mounted support blocks has a timing pulley at one end, and the two pulleys are connected by a timing belt. A motor connected to either support block is mounted on the upper surface of the housing. A guide groove for the tool holder to be inserted is formed on the lower end face of the strip-shaped support block. A sliding rod is mounted on the upper end of the tool holder, which is movably inserted into the guide groove. The two ends of the sliding rod extend from the strip-shaped grooves formed on the two side surfaces of the support block towards… The slide bar extends outward and slides into the corresponding strip groove. A hydraulic rod is installed on one side surface of the support block above the sliding rod. The lower end of the hydraulic rod is connected to one end of the sliding rod. This allows for the simultaneous clamping and positioning of two sets of small workpieces and the synchronous processing of the two sets of small workpieces using two cutting heads. It also allows for the clamping and positioning of a set of large workpieces and the processing of the workpiece using one cutting head while avoiding damage to the workpiece by the other cutting head. This satisfies the processing needs of various workpieces with large size differences and improves the convenience and efficiency of processing. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of the enhanced drilling and tapping center of this utility model;

[0017] Appendix Figure 2 This is a partial structural diagram of the second substrate in the enhanced drilling and tapping center of this utility model;

[0018] Appendix Figure 3 for Figure 2 A schematic diagram of the exploded structure;

[0019] Appendix Figure 4This is a schematic diagram of the tool assembly in the enhanced drilling and tapping center of this utility model;

[0020] Appendix Figure 5 for Figure 4 A schematic diagram of the decomposition of a local structure.

[0021] In the above figures: 1. First base plate; 2. Second base plate; 3. Strip-shaped through hole; 41. First movable block; 42. Second movable block; 5. Bidirectional lead screw; 61. First connecting block; 62. Second connecting block; 7. Guide rail; 71. Fixing block; 8. Slide groove; 9. Baffle; 10. Cylinder; 11. Alternating groove; 12. Adapter plate; 13. Bearing seat; 14. Housing; 151. First cutter head; 152. Second cutter head; 16. Tool holder; 17. Support block; 18. Machine base; 19. Three-axis drive assembly; 20. Tool assembly; 21. Synchronous pulley; 211. Synchronous belt; 22. Motor; 231. Guide groove; 232. Sliding rod; 233. Strip-shaped slide groove; 24. Hydraulic rod; 25. Hinge. Detailed Implementation

[0022] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0023] Example 1: An enhanced drilling and tapping center includes: a machine base 18, a three-axis drive assembly 19 disposed above the machine base 18, and a tool assembly 20 mounted on the three-axis drive assembly 19. The machine base 18, disposed below the tool assembly 20, is formed by splicing a first base plate 1 and a second base plate 2 arranged sequentially. Each of the first base plate 1 and the second base plate 2 has a strip-shaped through hole 3 extending in the left-right direction on its upper surface. A first movable block 41 and a second movable block 42 are movably disposed in each of the strip-shaped through holes 3. A bidirectional lead screw 5 extending in the left-right direction is rotatably mounted on the lower surface of each of the first base plate 1 and the second base plate 2 on one side of the strip-shaped through hole 3. The lower ends of the first movable block 41 and the second movable block 42 are threadedly connected to the corresponding bidirectional lead screw 5 through a first connecting block 61, so that the first movable block 41 and the second movable block 42 located in the same strip-shaped through hole 3 can move towards each other with the bidirectional lead screw 5.

[0024] Two first movable blocks 41 are arranged far apart from each other, and the upper surface of each first movable block 41 is higher than the upper surface of the first substrate 1 and the second substrate 2. Two second movable blocks 42 are arranged close to each other, and the upper surface of each second movable block 42 is lower than the upper surface of the first substrate 1 and the second substrate 2. Each second movable block 42 has a vertically extending groove 8 on its upper surface. A baffle 9 is movably embedded in the groove 8 and connected to the piston rod of a cylinder 10. When the baffle 9 moves with the cylinder 10 to the first position, its upper surface is flush with the upper surface of the first substrate 1 and the second substrate 2. When the baffle 9 moves with the cylinder 10 to the second position, its upper surface is higher than the upper surface of the first substrate 1 and the second substrate 2.

[0025] The cutting tool assembly 20 further includes: a housing 14 and a first cutting head 151 and a second cutting head 152 respectively corresponding to the first substrate 1 and the second substrate 2. The upper ends of the first cutting head 151 and the second cutting head 152, which extend outward from the housing 14, are each mounted in a support block 17 disposed in the housing 14 via a tool holder 16. Each of the two support blocks 17 rotatably mounted in the housing 14 has a synchronous pulley 21 mounted on one end. The two synchronous pulleys 21 are connected by a synchronous belt 211. A motor 22 that is connected to any one of the support blocks 17 is mounted on the upper surface of the housing 14.

[0026] A guide groove 231 for inserting a tool holder 16 is provided on the lower end surface of the strip-shaped support block 17. A sliding rod 232 is installed on the upper end of the tool holder 16, which is movably inserted into the guide groove 231. The two ends of the sliding rod 232 extend outward from the strip-shaped sliding grooves 233 on the two side surfaces of the support block 17 and slide in cooperation with the corresponding strip-shaped sliding grooves 233. A hydraulic rod 24 is installed on one side surface of the support block 17 and above the sliding rod 232. The lower end of the hydraulic rod 24 is connected to one end of the sliding rod 232.

[0027] When it is necessary to process small workpieces, the piston rods of the two cylinders 10 are both in the extended state, so that the two baffles 9 are moved up above the upper surfaces of the corresponding first base plate 1 and second base plate 2 under the drive of the cylinders 10. At the same time, two identical workpieces to be processed are placed on the upper surfaces of the first base plate 1 and the second base plate 2 respectively. The two bidirectional lead screws 5 are rotated by the motor, so that the first movable block 41 and the second movable block 42 on each bidirectional lead screw 5 approach each other until the workpieces to be processed are clamped.

[0028] Correspondingly, the first cutting head 151 and the second cutting head 152 of the tool assembly 20 are kept in the state of extending out of the housing 14 under the drive of the corresponding hydraulic rod 24. Then, through the cooperation of the motor 22 with the synchronous pulley 21 and the synchronous belt 211, the first cutting head 151 and the second cutting head 152 are synchronously driven to rotate and process the workpieces to be processed that are clamped and fixed on the first substrate 1 and the second substrate 2 respectively.

[0029] When a large workpiece needs to be processed, and the clamping mechanism on the first substrate 1 and the second substrate 2 is insufficient to clamp the workpiece, the piston rods of the two cylinders 10 are placed in the retracted state so that the two baffles 9 are moved down and retracted to be flush with the upper surface of the first substrate 1 and the second substrate 2 under the drive of the cylinders 10. Then, a large workpiece is placed on the upper surface of the first substrate 1 and the second substrate 2. Then, the two bidirectional lead screws 5 are driven by the motor to rotate, and each of them drives the first movable block 41 to move closer to the workpiece until the workpiece is clamped.

[0030] Correspondingly, the first cutting head 151 of the tool assembly 20 is kept in the state of extending outward from the housing 14 under the drive of the corresponding hydraulic rod 24, and the second cutting head 152 of the tool assembly 20 is retracted into the housing 14 under the drive of the corresponding hydraulic rod 24. Then, the first cutting head 151 is driven to rotate by the motor 22 to process the large-sized workpiece that is clamped and fixed.

[0031] In summary, two sets of short bidirectional lead screw guides can be used to clamp workpieces of different specifications with a large span, thereby reducing the requirements for guides, reducing costs, and maintaining the stability and holding capacity of clamping force.

[0032] The piston rod of the aforementioned hydraulic rod 24 is connected to the sliding rod 232 via a hinge 25.

[0033] Each of the first substrate 1 and the second substrate 2 has a guide rail 7 on its lower surface and on the other side of the strip-shaped through hole 3. The lower ends of the first movable block 41 and the second movable block 42 are movably connected to the corresponding guide rail 7 through a second connecting block 62. Each guide rail 7 is mounted on the first substrate 1 and the second substrate 2 through fixing blocks 71 respectively disposed at its two ends.

[0034] Example 2: An enhanced drilling and tapping center includes: a machine base 18, a three-axis drive assembly 19 disposed above the machine base 18, and a tool assembly 20 mounted on the three-axis drive assembly 19. The machine base 18, disposed below the tool assembly 20, is formed by splicing a first base plate 1 and a second base plate 2 arranged sequentially. Each of the first base plate 1 and the second base plate 2 has a strip-shaped through hole 3 extending in the left-right direction on its upper surface. A first movable block 41 and a second movable block 42 are movably disposed in each of the strip-shaped through holes 3. A bidirectional lead screw 5 extending in the left-right direction is rotatably mounted on the lower surface of each of the first base plate 1 and the second base plate 2 on one side of the strip-shaped through hole 3. The lower ends of the first movable block 41 and the second movable block 42 are threadedly connected to the corresponding bidirectional lead screw 5 through a first connecting block 61, so that the first movable block 41 and the second movable block 42 located in the same strip-shaped through hole 3 can move towards each other with the bidirectional lead screw 5.

[0035] Two first movable blocks 41 are arranged far apart from each other, and the upper surface of each first movable block 41 is higher than the upper surface of the first substrate 1 and the second substrate 2. Two second movable blocks 42 are arranged close to each other, and the upper surface of each second movable block 42 is lower than the upper surface of the first substrate 1 and the second substrate 2. Each second movable block 42 has a vertically extending groove 8 on its upper surface. A baffle 9 is movably embedded in the groove 8 and connected to the piston rod of a cylinder 10. When the baffle 9 moves with the cylinder 10 to the first position, its upper surface is flush with the upper surface of the first substrate 1 and the second substrate 2. When the baffle 9 moves with the cylinder 10 to the second position, its upper surface is higher than the upper surface of the first substrate 1 and the second substrate 2.

[0036] The cutting tool assembly 20 further includes: a housing 14 and a first cutting head 151 and a second cutting head 152 respectively corresponding to the first substrate 1 and the second substrate 2. The upper ends of the first cutting head 151 and the second cutting head 152, which extend outward from the housing 14, are each mounted in a support block 17 disposed in the housing 14 via a tool holder 16. Each of the two support blocks 17 rotatably mounted in the housing 14 has a synchronous pulley 21 mounted on one end. The two synchronous pulleys 21 are connected by a synchronous belt 211. A motor 22 that is connected to any one of the support blocks 17 is mounted on the upper surface of the housing 14.

[0037] A guide groove 231 for inserting a tool holder 16 is provided on the lower end surface of the strip-shaped support block 17. A sliding rod 232 is installed on the upper end of the tool holder 16, which is movably inserted into the guide groove 231. The two ends of the sliding rod 232 extend outward from the strip-shaped sliding grooves 233 on the two side surfaces of the support block 17 and slide in cooperation with the corresponding strip-shaped sliding grooves 233. A hydraulic rod 24 is installed on one side surface of the support block 17 and above the sliding rod 232. The lower end of the hydraulic rod 24 is connected to one end of the sliding rod 232.

[0038] When machining a single part, the first cutting head extends out of the housing via a hydraulic rod and begins machining under the drive of the motor; when machining two parts simultaneously, the second cutting head extends out via a hydraulic rod, and the rotation of the motor is transmitted to the timing pulley on the second cutting head via a timing belt, enabling the simultaneous machining of two parts.

[0039] A clearance groove 11 communicating with the slide 8 is provided on one side surface of the second movable block 42. One end of a transition plate 12 passes through the clearance groove 11 and is connected to the baffle 9 in the slide 8. The other end of the transition plate 12 is connected to the piston rod of the cylinder 10 installed on the second movable block 42.

[0040] Each of the aforementioned bidirectional lead screws 5 is rotatably mounted on the first substrate 1 and the second substrate 2 via at least two spaced bearing seats 13.

[0041] When using the aforementioned enhanced drilling and tapping center, it can simultaneously clamp and position two sets of small workpieces and process them synchronously using two cutting heads. It can also clamp and position a set of large workpieces and process them using one cutting head while avoiding damage to the workpiece from the other cutting head. This satisfies the processing needs of various workpieces with large size differences and improves the convenience and efficiency of processing.

[0042] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An enhanced drill center comprising: The machine table (18), the three-axis driving assembly (19) arranged above the machine table (18), and the cutter assembly (20) mounted on the three-axis driving assembly (19) are characterized in that the machine table (18) arranged below the cutter assembly (20) is spliced by a first base plate (1) and a second base plate (2) arranged in sequence, the upper surface of each of the first base plate (1) and the second base plate (2) is provided with a strip-shaped through hole (3) extending in the left-right direction, each strip-shaped through hole (3) is movably provided with a first movable block (41) and a second movable block (42), the lower surface of each of the first base plate (1) and the second base plate (2) and located on one side of the strip-shaped through hole (3) is rotatably mounted with a bidirectional screw rod (5) extending in the left-right direction, the lower end of each of the first movable block (41) and the second movable block (42) is threadedly connected with the corresponding bidirectional screw rod (5) through a first connecting block (61), so that the first movable block (41) and the second movable block (42) located in the same strip-shaped through hole (3) can move towards each other along the bidirectional screw rod (5); two first movable blocks (41) are arranged away from each other, and the upper end surface of each first movable block (41) is higher than the upper surface of the first base plate (1) and the second base plate (2), two second movable blocks (42) are arranged close to each other, and the upper end surface of each second movable block (42) is lower than the upper surface of the first base plate (1) and the second base plate (2), the upper end surface of each second movable block (42) is provided with a vertically extending sliding groove (8), a baffle (9) is movably embedded in the sliding groove (8) and connected with the piston rod of a cylinder (10), when the baffle (9) moves to a first position along the cylinder (10), the upper end surface thereof is flush with the upper surface of the first base plate (1) and the second base plate (2), when the baffle (9) moves to a second position along the cylinder (10), the upper end surface thereof is higher than the upper surface of the first base plate (1) and the second base plate (2); the cutter assembly (20) further comprises a housing (14) and first and second cutter heads (151, 152) arranged correspondingly with the first base plate (1) and the second base plate (2), the upper end of each of the first cutter head (151) and the second cutter head (152) extending outward from the housing (14) is mounted in a support block (17) arranged in the housing (14) through a cutter holder (16), one end of each of the support blocks (17) rotatably mounted in the housing (14) is mounted with a synchronous pulley (21), the two synchronous pulleys (21) are drivingly connected through a synchronous belt (211), and the upper surface of the housing (14) is mounted with a motor (22) drivingly connected with any one support block (17). The lower end surface of the strip-shaped support block (17) is provided with a guide slot (231) for embedding the tool rest (16), the upper end of the tool rest (16) movably embedded in the guide slot (231) is provided with a sliding rod (232), the two ends of the sliding rod (232) respectively extend outward from the strip-shaped sliding slots (233) provided on the two side surfaces of the support block (17) and are in sliding fit with the corresponding strip-shaped sliding slots (233), a hydraulic rod (24) is installed on one side surface of the support block (17) above the sliding rod (232), and the lower end of the hydraulic rod (24) is connected with one end of the sliding rod (232).

2. The enhanced drill center of claim 1, wherein: The piston rod of the hydraulic rod (24) is connected with the sliding rod (232) through a hinge (25).

3. The enhanced drill center of claim 1, wherein: The lower surface of each of the first base plate (1) and the second base plate (2) and located on the other side of the strip-shaped through hole (3) is provided with a guide rail (7), and the lower end of each of the first movable block (41) and the second movable block (42) is movably connected with the corresponding guide rail (7) through a second connecting block (62).

4. The enhanced drill center of claim 3, wherein: Each of the guide rails (7) is installed on the first base plate (1) and the second base plate (2) through the fixed blocks (71) respectively arranged at the two ends thereof.

5. The enhanced drill center of claim 1, wherein: One side surface of the second movable block (42) is provided with an avoiding slot (11) in communication with the sliding slot (8), one end of a conversion plate (12) penetrates through the avoiding slot (11) and is connected with the baffle (9) in the sliding slot (8), and the other end of the conversion plate (12) is connected with the piston rod of the air cylinder (10) installed on the second movable block (42).

6. The enhanced drill center of claim 1, wherein: Each of the bidirectional screw rods (5) is rotatably installed on the first base plate (1) and the second base plate (2) through at least two interval arranged bearing seats (13).

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