CN117773176B - A new type of CNC bench drill - Google Patents

Abstract

The invention discloses a novel CNC bench drill, which relates to the field of bench drills, including a drilling machine, a clamping assembly installed on the drilling machine, and a rotating drill bit installed above the clamping assembly on the drilling machine; the clamping assembly includes a bearing plate, two groups of pre-clamping units, a pre-clamping synchronization unit, two groups of locking units, a locking drive unit and a locking adjustment unit; the clamping assembly can move vertically; the two groups of pre-clamping units are installed on the bearing plate, and the pre-clamping units include a pre-clamping spring and a clamping plate. Pre-clamping and locking of a workpiece only require pushing the clamping plate to move, and the clamping plate can drive another clamping plate to move through the pre-clamping synchronization unit, so that the two clamping plates are opened, and the workpiece can be pre-clamped by letting go, and then the workpiece rises, and the clamping plate is locked without manual operation, so that the operation of clamping the workpiece is simpler, the difficulty of getting started is low, and the clamping efficiency is improved, and the operation of pushing the clamping plate to open and letting go to clamp the workpiece is more convenient.

Description

A new type of CNC bench drill

Technical Field

The invention relates to the field of bench drills, and in particular to a novel numerically controlled bench drill.

Background Art

CNC bench drill is a machine tool that can be used for drilling, tapping and cutting. This machine tool is usually used in the metal processing industry and can accurately control the depth, diameter and speed of drilling. CNC bench drill can be controlled by computer program and can be customized according to different processing requirements; CNC bench drill usually consists of the following parts; Bed: The bed of CNC bench drill is usually made of cast iron or steel plate, with sufficient rigidity and stability to ensure the accuracy of drilling; Workbench: The workbench is the place to place the workpiece, and the height and tilt angle can usually be adjusted to accommodate workpieces of different shapes and sizes; Drill: CNC bench drill is usually equipped with a variety of different types and sizes of drills, which can be selected according to processing requirements; Control system: The control system of CNC bench drill is usually composed of computer, display, keyboard and operation panel, which can be used to input and control drilling programs; Cooling system: CNC bench drill is usually equipped with cooling system to cool the drill bit and workpiece to prevent overheating of the drill bit and deformation of the workpiece. CNC bench drill is an efficient, precise and flexible machine tool suitable for various metal processing industries.

Chinese patent CN111283238B discloses a bench drill for mechanical processing that can be precisely positioned, comprising: a bench drill body; a lifting base, arranged at the bottom end of the front side of the bench drill body; a fixed seat, arranged at the top of the lifting base; a clamping mechanism, arranged at the top of the fixed seat; a positioning mechanism, arranged at the top of the front side of the bench drill body, which can facilitate the drilling positioning of the workpiece to be subsequently processed, so that the hole drilling will not be offset, thereby improving the processing quality, and can be suitable for fixing workpieces of different sizes, and then the workpiece can be quickly fixed and drilled, so as to facilitate batch processing of the workpiece with a faster drilling speed.

The above patents and prior art also have the following defects:

Nowadays, bench drills are all equipped with clamps to clamp the workpiece to be drilled to ensure the stability of the workpiece during the drilling process. However, the clamp needs to be operated to clamp the workpiece. The existing bench drill clamp drives two clamping plates to move toward each other through a screw to clamp the workpiece. The screw needs to be rotated many times, the speed is slow, and the operation is cumbersome, resulting in low efficiency in clamping the workpiece.

Therefore, the present application provides a new type of CNC bench drill to meet the needs.

Summary of the invention

The purpose of the present application is to provide a new type of CNC bench drill, which only needs to push the clamping plate to move for pre-clamping and locking the workpiece. The clamping plate can drive the other clamping plate to move through the pre-clamping synchronization unit, so that the two clamping plates are opened, and the workpiece can be pre-clamped by letting go, and then the workpiece rises, and the clamping plate is locked without manual operation, which makes the operation of clamping the workpiece simpler, easier to get started, and improves the clamping efficiency. In addition, it is more convenient to push the clamping plate to open and let go to clamp the workpiece.

To achieve the above-mentioned purpose, the present application provides the following technical solutions: a new type of CNC bench drill, comprising a drilling machine, a clamping assembly is installed on the drilling machine, and a rotating drill bit is also installed on the drilling machine above the clamping assembly;

The clamping assembly comprises a bearing plate, two groups of pre-clamping units, a pre-clamping synchronization unit, two groups of locking units, a locking drive unit and a locking adjustment unit;

The clamping assembly is capable of vertical movement;

Two groups of pre-clamping units are installed on the bearing plate, and the pre-clamping units include pre-clamping springs and clamping plates. The two pre-clamping springs can drive the corresponding clamping plates to move, so that the two clamping plates move toward each other to clamp the workpiece;

When the clamping plate in one of the pre-clamping units is moved, the pre-clamping synchronization unit can move the clamping plate in the other pre-clamping unit in the opposite direction;

The locking unit comprises two locking blocks. When the clamping assembly rises, the locking drive unit can drive the two locking blocks to rise relative to the carrier plate, so that the two locking blocks move to the side of the clamping plate away from the workpiece to press the clamping plate tightly.

The locking adjustment unit can drive the two locking blocks to move horizontally in opposite directions.

Preferably, a fixing rod is fixedly installed on the drilling machine, the rotary drill bit is installed on the fixing rod, the locking drive unit comprises a driving gear, a driving shaft, a driving belt member, a driving rotating rod, an active bevel gear, a passive bevel gear, a driving threaded cylinder and a driving threaded rod, and the locking unit also comprises a locking plate;

The driving gear is fixedly mounted on the fixing rod, the driving gear is fixedly sleeved on the driving shaft and meshed with the driving gear, the driving belt member is mounted on the driving shaft and the driving rotating rod, the active bevel gear is fixedly mounted on the rotation of the driving rotating rod, the passive bevel gear is fixedly sleeved on the driving threaded cylinder and meshed with the active bevel gear, the driving threaded rod is inserted in the driving threaded cylinder and threadedly cooperates with the driving threaded cylinder, the top of the driving threaded rod is fixedly mounted on the locking plate, the two locking blocks are mounted on the locking plate through the locking adjustment unit, the top of the locking block is arc-shaped, and the driving belt member includes a driving pulley, a passive pulley and a driving belt, the driving pulley is fixedly mounted on the driving shaft, the passive pulley is fixedly mounted on the driving rotating rod, and the driving belt is connected to the driving pulley and the passive pulley.

Preferably, the pre-clamping synchronization unit includes two synchronization blocks, two synchronization racks, a fixed block and a synchronization gear. The two synchronization blocks are respectively fixedly mounted on the bottom of the two clamping plates. The bearing plate is provided with movable holes at positions corresponding to the synchronization blocks. Both the synchronization blocks are slidably fitted in the movable holes. The fixed block is fixedly mounted on the bottom of the bearing plate. The synchronization gear is rotatably connected to the fixed block. The two synchronization racks are respectively fixedly mounted on the corresponding synchronization blocks. The two synchronization racks are respectively located on both sides of the synchronization gear and mesh with the synchronization gear.

Preferably, the locking adjustment unit includes two adjustment blocks and a bidirectional threaded rod, the two adjustment blocks are respectively fixedly mounted on the bottom of the two locking blocks, and the locking plate is provided with adjustment holes corresponding to the positions of the adjustment blocks, the two adjustment blocks are slidably fitted in the adjustment holes, the bidirectional threaded rod passes through the two adjustment blocks and is threadedly connected to the adjustment blocks, a support block is fixedly mounted on the locking plate, and the adjustment block is rotatably connected to the support block.

Preferably, a fixed shell is fixedly installed on the carrier plate, the clamping assembly is arranged in the fixed shell, a fixed side plate is fixedly installed in the fixed shell, both ends of the driving shaft are rotatably connected to the corresponding fixed side plates respectively, two connecting blocks are also fixedly installed in the fixed shell, the driving shaft passes through the connecting blocks and is rotatably connected to the connecting blocks, the two connecting blocks are located on both sides of the driving gear, the driving rotating rod is rotatably connected to the corresponding fixed side plate, a stabilizing block is fixedly installed on the fixed side plate, and the driving threaded cylinder is rotatably connected to the stabilizing block.

Preferably, the locking units are provided with two groups, and the locking adjustment units are provided with two groups corresponding to the locking units, and the driving threaded rods in the two groups of locking adjustment units are commonly connected with an adjusting synchronization unit, and the adjusting synchronization unit includes two adjusting pulleys and an adjusting belt, and the two adjusting pulleys are respectively fixed and adjusted on the corresponding driving threaded rods, and the adjusting belt is connected to the two adjusting pulleys.

Preferably, a avoidance hole is provided on one side of the fixed shell, one of the two driving threaded rods passes through the avoidance hole and is fixedly mounted with a rotating block, and an anti-slip groove is provided on the rotating block.

Preferably, a lifting hydraulic rod is fixedly installed in the drilling machine, and the output end of the lifting hydraulic rod is fixedly installed on the bottom of the fixed shell.

Preferably, rubber blocks are fixedly installed on opposite sides of the two clamping plates, and the pre-clamping unit also includes a limit rod and a limit block, the limit block is fixedly installed on the bottom of the supporting plate, one end of the limit rod is fixedly installed on the limit block, and the other end of the limit rod is fixedly installed on the fixed block, one end of the pre-clamping spring is fixedly installed on the limit block, and the other end of the pre-clamping spring is fixedly installed on the synchronization block, and the pre-clamping spring is sleeved on the limit rod, and a sliding block is fixedly installed on the bottom of the clamping plate, and a sliding groove is opened on the supporting plate at a position corresponding to the sliding block, and the sliding block slidably fits in the sliding groove.

Preferably, the locking plate is provided with a through hole corresponding to the position of the limiting rod, a U-shaped plate is fixedly installed on the bottom of the locking plate, and the locking plate is fixedly installed with the driving threaded rod through the U-shaped plate.

In summary, the technical effects and advantages of the present invention are as follows:

1. In the present invention, the rotating drill bit punches a hole in the workpiece by the rise of the workpiece, and placing the workpiece on the carrying plate can pre-clamp the workpiece through the clamping plate to prevent the workpiece from moving. Later, during the rising process of the workpiece, the locking block is driven to rise by the locking driving unit, and the locking block can lock the clamping plate, thereby clamping the workpiece, ensuring that the workpiece will not move due to force during the process of the workpiece continuing to rise and being drilled, thereby ensuring the stability of the workpiece and making the drilling of the workpiece more accurate. At the same time, the pre-clamping and locking of the workpiece only requires pushing the clamping plate to move, and the clamping plate can drive the other clamping plate to move through the pre-clamping synchronization unit, so that the two clamping plates are opened, and the workpiece can be pre-clamped by letting go, and then the workpiece rises, and the clamping plate is locked without manual operation, so the operation of clamping the workpiece is simpler, the difficulty of getting started is low, and the clamping efficiency is improved, and the operation of pushing the clamping plate to open and letting go to clamp the workpiece is more convenient;

2. In the present invention, when one of the clamping plates is pushed to move, the clamping plate drives the corresponding synchronous rack to move, the synchronous rack drives the synchronous gear to rotate, the synchronous gear drives another synchronous rack to move in the opposite direction, and the other synchronous rack drives the other clamping plate to move, so that the two clamping plates move in opposite directions. When clamping the workpiece, only one clamping plate needs to be pushed to move, which simplifies the operation and is more convenient to use.

3. In the present invention, when the sizes of the workpieces are different, the positions of the clamping plates after clamping the workpieces through the pre-clamping springs are also different. Workpieces of different sizes need to adjust the position of the locking blocks. By rotating the two-way threaded rod, the two adjustment blocks move on the two-way threaded rod, and the two adjustment blocks drive the corresponding locking blocks to move in opposite directions, so that the locking blocks can match workpieces of different sizes and can lock clamping plates in different positions, thereby improving applicability.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the structure of a drilling machine, a rotary drill bit and a clamping assembly in the present invention;

FIG2 is a schematic diagram of the structure of the drilling machine, the rotary drill bit, the clamping assembly and the lifting hydraulic rod in the present invention;

FIG3 is a schematic structural diagram of a fixed housing, a bearing plate, a pre-clamping unit and a driving rack in the present invention;

4 is a schematic structural diagram of a load-bearing plate, a pre-clamping unit, a fixed housing, a locking drive unit and a locking adjustment unit in the present invention;

FIG5 is a schematic structural diagram of a load-bearing plate, a clamping plate, a fixed housing and a locking drive unit in the present invention;

FIG6 is an enlarged view of part A in FIG5 of the present invention;

FIG7 is a schematic structural diagram of a rotary drill bit, a fixing rod and a clamping plate in the present invention;

FIG8 is an enlarged view of part B in FIG7 of the present invention;

FIG9 is a schematic structural diagram of a locking block, a locking plate, an adjusting block and a bidirectional threaded rod in the present invention;

FIG10 is an enlarged view of portion C in FIG9 of the present invention;

FIG11 is a schematic diagram of the structure of the clamping plate, the synchronizing block, the limit rod, the pre-clamping spring and the bearing plate in the present invention;

FIG. 12 is an enlarged view of portion D in FIG. 11 of the present invention.

In the figure: 1. drilling machine; 2. clamping assembly; 21. bearing plate; 22. pre-clamping unit; 221. pre-clamping spring; 222. clamping plate; 223. limit rod; 23. pre-clamping synchronization unit; 231. synchronization block; 232. synchronization rack; 233. synchronization gear; 24. locking unit; 241. locking block; 242. locking plate; 25. locking drive unit; 251. driving gear; 252. driving shaft; 253. driving belt member; 254. active bevel gear; 255. passive bevel gear; 256. driving threaded cylinder; 257. driving threaded rod; 26. locking adjustment unit; 261. adjustment block; 262. bidirectional threaded rod; 3. rotating drill bit; 4. fixing rod; 5. driving rack; 6. fixing shell; 7. adjusting synchronization unit; 8. rotating block; 9. lifting hydraulic rod; 10. U-shaped plate.

DETAILED DESCRIPTION

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 described embodiments 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 creative work are within the scope of protection of the present invention.

Embodiment: Referring to a novel CNC bench drill shown in FIG. 1 to FIG. 12 , the drill comprises a drilling machine 1 , a clamping assembly 2 is mounted on the drilling machine 1 , and a rotating drill bit 3 is mounted above the clamping assembly 2 on the drilling machine 1 ;

The clamping assembly 2 includes a carrying plate 21, two groups of pre-clamping units 22, a pre-clamping synchronization unit 23, two groups of locking units 24, a locking drive unit 25 and a locking adjustment unit 26;

The clamping assembly 2 is capable of vertical movement;

Two sets of pre-clamping units 22 are installed on the bearing plate 21. The pre-clamping units 22 include pre-clamping springs 221 and clamping plates 222. The two pre-clamping springs 221 can drive the corresponding clamping plates 222 to move, so that the two clamping plates 222 move toward each other to clamp the workpiece.

When the clamping plate 222 in one of the pre-clamping units 22 is moved, the pre-clamping synchronization unit 23 can move the clamping plate 222 in the other pre-clamping unit 22 in the opposite direction;

The locking unit 24 includes two locking blocks 241. When the clamping assembly 2 rises, the locking driving unit 25 can drive the two locking blocks 241 to rise relative to the carrier plate 21, so that the two locking blocks 241 move to the side of the clamping plate 222 away from the workpiece to press the clamping plate 222 tightly.

The locking adjustment unit 26 can drive the two locking blocks 241 to move horizontally in opposite directions.

Push one clamping plate 222 to move, and the clamping plate 222 drives the other clamping plate 222 to move through the pre-clamping synchronization unit 23, and the moving directions are opposite, so that the two clamping plates 222 are opened and squeeze the pre-clamping spring 221, and a workpiece is placed between the two clamping plates 222 on the carrier plate 21, and the clamping plate 222 is released. The pre-clamping spring 221 pushes the clamping plate 222 to move, and the two clamping plates 222 move to clamp the workpiece and push the workpiece to move to the center of the carrier plate 21; then the clamping assembly 2 rises, the carrying plate 21 drives the workpiece to rise, during the rising process, the locking driving unit 25 drives the two locking blocks 241 to rise, the locking blocks 241 rise and press against the side of the clamping plate 222 away from the workpiece, so that the clamping plate 222 clamps the workpiece, the carrying plate 21 continues to rise and drives the workpiece to contact with the rotating drill bit 3, the rotating drill bit 3 rotates to drill the workpiece, the position of the locking blocks 241 can be adjusted by the locking adjustment unit 26, so that the locking blocks 241 and the clamping plate 222 can clamp workpieces of different sizes.

The rotating drill bit 3 drills a hole in the workpiece by rising the workpiece, and placing the workpiece on the supporting plate 21 can pre-clamp the workpiece through the clamping plate 222 to prevent the workpiece from moving. Later, during the rising process of the workpiece, the locking drive unit 25 drives the locking block 241 to rise, and the locking block 241 can lock the clamping plate 222, thereby clamping the workpiece, ensuring that the workpiece will not move due to force during the process of the workpiece continuing to rise and being drilled, thereby ensuring the stability of the workpiece and making the workpiece drilling more accurate. At the same time, pre-clamping and locking the workpiece only requires pushing the clamping plate 222 to move, and the clamping plate 222 can drive the other clamping plate 222 to move through the pre-clamping synchronization unit 23, so that the two clamping plates 222 are opened, and the workpiece can be pre-clamped by letting go, and then the workpiece rises, and the clamping plate 222 is locked without manual operation, which makes the operation of clamping the workpiece simpler, with low difficulty, and improves the clamping efficiency. In addition, it is more convenient to push the clamping plate 222 to open and let go to clamp the workpiece.

As another preferred embodiment, when the gravity of the workpiece is large or the contact area between the workpiece and the supporting plate 21 is large, resulting in the pre-clamping spring 221 being unable to push the workpiece to the center position of the supporting plate 21, it is necessary to manually place the workpiece at the center position of the supporting plate 21. The center of the supporting plate 21 is preferably fixed with a positioning protrusion matching the workpiece, thereby ensuring that the workpiece can be placed at the center position of the supporting plate 21 by manual blind operation.

Further, referring to FIGS. 1 to 12 , a fixed rod 4 is fixedly mounted on the drilling machine 1, a rotary drill bit 3 is mounted on the fixed rod 4, a locking drive unit 25 includes a driving gear 251, a driving shaft 252, a driving belt member 253, a driving rotating rod, an active bevel gear 254, a passive bevel gear 255, a driving threaded cylinder 256 and a driving threaded rod 257, and the locking unit 24 also includes a locking plate 242;

A driving rack 5 is fixedly installed on the fixed rod 4, a driving gear 251 is fixedly sleeved on the driving shaft 252 and meshed with the driving rack 5, a driving belt member 253 is installed on the driving shaft 252 and the driving rotating rod, an active bevel gear 254 is fixedly installed for the rotation of the driving rotating rod, a passive bevel gear 255 is fixedly sleeved on the driving threaded cylinder 256 and meshed with the active bevel gear 254, a driving threaded rod 257 is inserted in the driving threaded cylinder 256 and threadedly matched with the driving threaded cylinder 256, the top of the driving threaded rod 257 is fixedly installed on the locking plate 242, two locking blocks 241 are installed on the locking plate 242 through a locking adjustment unit 26, the top of the locking block 241 is arranged in an arc shape, the driving belt member 253 includes a driving pulley, a passive pulley and a driving belt, the driving pulley is fixedly installed on the driving shaft 252, the passive pulley is fixedly installed on the driving rotating rod, and the driving belt is connected to the driving pulley and the passive pulley.

When the clamping assembly 2 rises, the driving gear 251 moves on the driving rack 5, and the driving rack 5 meshes with the driving gear 251 to make the driving gear 251 rotate, and the driving gear 251 drives the driving shaft 252 to rotate, and the driving shaft 252 drives the active pulley to rotate, and the active pulley drives the driving belt to rotate, and the driving belt drives the passive pulley to rotate, and the passive pulley drives the active bevel gear 254 to rotate, and the active bevel gear 254 drives the passive bevel gear 255 to rotate, and the passive bevel gear 255 drives the driving threaded cylinder 256 to rotate, so that the driving threaded rod 257 moves upward in the driving threaded cylinder 256, and the driving threaded rod 257 drives the locking plate 242 to move upward, and the locking plate 242 drives the locking block 241 to move upward, and the arc surface of the locking block 241 contacts the clamping plate 222 and pushes the clamping plate 222 toward the workpiece, so that the clamping plate 222 clamps the workpiece, and the locking block 241 continues to rise and abuts against the side of the clamping plate 222 away from the workpiece, and presses the clamping plate 222 tightly.

Further, referring to Figures 1 to 12, the pre-clamping synchronization unit 23 includes two synchronization blocks 231, two synchronization racks 232, a fixed block and a synchronization gear 233. The two synchronization blocks 231 are respectively fixedly mounted on the bottom of the two clamping plates 222. The bearing plate 21 is provided with moving holes at positions corresponding to the synchronization blocks 231. The two synchronization blocks 231 are both slidably fitted in the moving holes. The fixed block is fixedly mounted on the bottom of the bearing plate 21. The synchronization gear 233 is rotatably connected to the fixed block. The two synchronization racks 232 are respectively fixedly mounted on the corresponding synchronization blocks 231. The two synchronization racks 232 are respectively located on both sides of the synchronization gear 233 and mesh with the synchronization gear 233.

When one of the clamping plates 222 is pushed to move, this clamping plate 222 drives the corresponding synchronous rack 232 to move, and this synchronous rack 232 drives the synchronous gear 233 to rotate, and the synchronous gear 233 drives the other synchronous rack 232 to move in the opposite direction, and the other synchronous rack 232 drives the other clamping plate 222 to move, so that the two clamping plates 222 move in opposite directions. When clamping the workpiece, only one clamping plate 222 needs to be pushed to move, which simplifies the operation and is more convenient to use.

Further, referring to Figures 1 to 12, the locking adjustment unit 26 includes two adjustment blocks 261 and a bidirectional threaded rod 262. The two adjustment blocks 261 are fixedly installed at the bottom of the two locking blocks 241 respectively. Adjustment holes are opened on the locking plate 242 corresponding to the positions of the adjustment blocks 261. The two adjustment blocks 261 are slidably fitted in the adjustment holes. The bidirectional threaded rod 262 passes through the two adjustment blocks 261 and is threadedly connected to the adjustment blocks 261. A support block is fixedly installed on the locking plate 242, and the adjustment block 261 is rotatably connected to the support block.

When the sizes of the workpieces are different, the positions of the clamping plate 222 after clamping the workpiece through the pre-clamping spring 221 are also different. Workpieces of different sizes need to adjust the position of the locking block 241. By rotating the two-way threaded rod 262, the two adjustment blocks 261 move on the two-way threaded rod 262, and the two adjustment blocks 261 drive the corresponding locking blocks 241 to move, and the moving directions are opposite, so that the locking blocks 241 can match workpieces of different sizes and can lock the clamping plates 222 in different positions, thereby improving applicability.

Further, referring to Figures 1-12, a fixed shell 6 is fixedly installed on the carrier plate 21, the clamping assembly 2 is arranged in the fixed shell 6, a fixed side plate is fixedly installed in the fixed shell 6, both ends of the driving shaft 252 are rotatably connected to the corresponding fixed side plates, and two connecting blocks are also fixedly installed in the fixed shell 6. The driving shaft 252 passes through the connecting blocks and is rotatably connected to the connecting blocks. The two connecting blocks are located on both sides of the driving gear 251, and the driving rotating rod is rotatably connected to the corresponding fixed side plate. A stabilizing block is fixedly installed on the fixed side plate, and the driving threaded cylinder 256 is rotatably connected to the stabilizing block.

Further, referring to Figures 1-12, two groups of locking units 24 are provided, and two groups of locking adjustment units 26 are provided corresponding to the locking units 24. The driving threaded rods 257 in the two groups of locking adjustment units 26 are commonly connected to the adjustment synchronization unit 7. The adjustment synchronization unit 7 includes two adjustment pulleys and an adjustment belt. The two adjustment pulleys are respectively fixed and adjusted on the corresponding driving threaded rods 257, and the adjustment belts are connected to the two adjustment pulleys.

Through the two groups of locking units 24, the clamping plate 222 can be better tightened, ensuring the stability of the clamping plate 222. When one of the driving threaded rods 257 is rotated, the driving threaded rod 257 drives the corresponding adjusting pulley to rotate, and the adjusting pulley drives another adjusting pulley to rotate through the adjusting belt, and the other adjusting pulley drives another driving threaded rod 257 to rotate, which can drive the two driving threaded rods 257 to rotate at the same time, ensuring that the rotation amount of the two driving threaded rods 257 is consistent, and the adjustment amount of the locking blocks 241 in the two groups of locking units 24 is consistent, ensuring that the clamping plate 222 has a good tightening effect.

Further, referring to FIGS. 1 to 12 , a avoidance hole is provided on one side of the fixed housing 6 , and one of the two driving threaded rods 257 passes through the avoidance hole and is fixedly mounted with a rotating block 8 , on which an anti-slip groove is provided.

By operating the rotating block 8 to rotate, the rotating block 8 drives one of the driving threaded rods 257 to rotate, and this driving threaded rod 257 drives the other driving threaded rod 257 to move by adjusting the synchronization unit 7. When the locking plate 242 moves upward relative to the supporting plate 21, the locking plate 242 drives the driving threaded rod 257 to move, and the driving threaded rod 257 moves in the avoidance hole.

Further, referring to FIGS. 1-12 , a lifting hydraulic rod 9 is fixedly installed in the drilling machine 1 , and an output end of the lifting hydraulic rod 9 is fixedly installed at the bottom of the fixed housing 6 .

The lifting hydraulic rod 9 drives the fixed housing 6 to move, the fixed housing 6 drives the clamping assembly 2 to move, and the clamping assembly 2 drives the workpiece to move, so that the workpiece moves upward and contacts the rotating drill bit 3 to drill a hole in the workpiece.

As another preferred embodiment, the rotary drill bit 3 is mounted on a two-axis movable platform, so that the rotary drill bit 3 can move horizontally in two directions, thereby adjusting its position on the horizontal plane and drilling holes at different positions of the workpiece.

Further, referring to Figures 1 to 12, rubber blocks are fixedly installed on the opposite sides of the two clamping plates 222, and the pre-clamping unit 22 also includes a limit rod 223 and a limit block. The limit block is fixedly installed at the bottom of the supporting plate 21, one end of the limit rod 223 is fixedly installed on the limit block, and the other end of the limit rod 223 is fixedly installed on the fixed block. One end of the pre-clamping spring 221 is fixedly installed on the limit block, and the other end of the pre-clamping spring 221 is fixedly installed on the synchronization block 231, and the pre-clamping spring 221 is sleeved on the limit rod 223. A sliding block is fixedly installed at the bottom of the clamping plate 222, and a sliding groove is opened on the supporting plate 21 corresponding to the position of the sliding block, and the sliding block slides in the sliding groove.

When the clamping plate 222 moves, the clamping plate 222 drives the synchronous block 231 to move, and the synchronous block 231 moves on the limiting rod 223, making the clamping plate 222 more stable and less likely to shake. At the same time, the clamping plate 222 drives the sliding block to move in the sliding groove, further making the clamping plate 222 more stable.

The locking block 241 rises up through the sliding slot to press the clamping plate 222 tightly.

Further, referring to FIGS. 1-12 , a through hole is opened in the locking plate 242 corresponding to the position of the limiting rod 223 , a U-shaped plate 10 is fixedly installed at the bottom of the locking plate 242 , and the locking plate 242 is fixedly installed with the driving threaded rod 257 through the U-shaped plate 10 .

When the locking plate 242 drives the locking block 241 to move upward, the through hole provided on the locking plate 242 can avoid the limiting rod 223, thereby improving the compactness of the structure.

A connecting rod is also fixedly installed on the bottom of the locking plate 242 , and a connecting tube is also fixedly installed in the fixed shell 6 . The connecting rod is slidably fitted in the connecting tube to ensure the stability of the movement of the locking plate 242 .

After the locking plate 242 drives the locking block 241 to rise and presses the clamping plate 222, the clamping assembly 2 continues to rise, the driving gear 251 disengages from the driving rack 5, and the locking block 241 remains pressed against the clamping plate 222 under the self-locking action of the driving threaded rod 257 and the driving threaded cylinder 256. When the clamping assembly 2 descends, the driving gear 251 meshes with the driving rack 5 and drives the locking plate 242 to descend, and the locking plate 242 drives the locking block 241 to descend, and the locking block 241 disengages from the clamping plate 222. At this time, the clamping plate 222 can move to remove the workpiece.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel numerical control bench drill, includes drilling machine (1), its characterized in that: the drilling machine (1) is provided with a clamping assembly (2), and a rotary drill bit (3) is arranged above the clamping assembly (2) on the drilling machine (1);

The clamping assembly (2) comprises a bearing plate (21), two groups of pre-clamping units (22), a pre-clamping synchronous unit (23), two groups of locking units (24), a locking driving unit (25) and a locking adjusting unit (26);

The clamping assembly (2) is vertically movable;

The two groups of pre-clamping units (22) are arranged on the bearing plate (21), the pre-clamping units (22) comprise pre-clamping springs (221) and clamping plates (222), and the two pre-clamping springs (221) can drive the corresponding clamping plates (222) to move so that the two clamping plates (222) move in opposite directions to clamp a workpiece;

When the clamping plate (222) in one of the pre-clamping units (22) is moved, the pre-clamping synchronization unit (23) can move the clamping plate (222) in the other pre-clamping unit (22) in the opposite direction;

The locking unit (24) comprises two locking blocks (241), and after the clamping assembly (2) ascends, the locking driving unit (25) can drive the two locking blocks (241) to ascend relative to the bearing plate (21), so that the two locking blocks (241) move to one side, far away from a workpiece, of the clamping plate (222) to tightly prop the clamping plate (222);

The locking adjusting unit (26) can drive the two locking blocks (241) to horizontally move in opposite moving directions;

A fixed rod (4) is fixedly arranged on the drilling machine (1), the rotary drill bit (3) is arranged on the fixed rod (4), the locking driving unit (25) comprises a driving gear (251), a driving rotating shaft (252), a driving belt piece (253), a driving rotating rod, a driving bevel gear (254), a driven bevel gear (255), a driving thread cylinder (256) and a driving threaded rod (257), and the locking unit (24) further comprises a locking plate (242);

The driving belt piece (253) is installed on the driving rotating shaft (252) and the driving rotating rod, the driving bevel gear (254) is fixedly installed on the rotation of the driving rotating rod, the driven bevel gear (255) is fixedly sleeved on the driving threaded cylinder (256) and meshed with the driving bevel gear (254), the driving threaded rod (257) is inserted into the driving threaded cylinder (256) and is in threaded fit with the driving threaded cylinder (256), the top of the driving threaded rod (257) is fixedly installed on the locking plate (242), the two locking blocks (241) are installed on the locking plate (242) through the locking adjusting unit (26), the top of the locking blocks (241) is in arc-shaped, the driving belt piece (253) comprises a driving belt pulley, a driven belt pulley and a driving belt, the driving belt pulley is fixedly installed on the driving threaded cylinder (256) and is in threaded fit with the driving threaded cylinder (256), the tops of the driving belt pulley are fixedly installed on the driving belt pulley and the driven belt pulley, and the driving belt piece (241) is fixedly installed on the driving belt pulley and the driven belt pulley;

The pre-clamping synchronization unit (23) comprises two synchronization blocks (231), two synchronization racks (232), a fixed block and a synchronization gear (233), wherein the two synchronization blocks (231) are respectively and fixedly installed at the bottoms of the two clamping plates (222), a moving hole is formed in the position, corresponding to the synchronization blocks (231), of the bearing plate (21), the two synchronization blocks (231) are in sliding fit in the moving hole, the fixed block is fixedly installed at the bottom of the bearing plate (21), the synchronization gear (233) is rotationally connected to the fixed block, the two synchronization racks (232) are respectively and fixedly installed on the corresponding synchronization blocks (231), and the two synchronization racks (232) are respectively located at two sides of the synchronization gear (233) and meshed with the synchronization gear (233);

The locking adjusting unit (26) comprises two adjusting blocks (261) and a bidirectional threaded rod (262), the two adjusting blocks (261) are respectively and fixedly arranged at the bottoms of the two locking blocks (241), adjusting holes are formed in the positions, corresponding to the adjusting blocks (261), of the locking plates (242), the two adjusting blocks (261) are in sliding fit in the adjusting holes, the bidirectional threaded rod (262) penetrates through the two adjusting blocks (261) and is in threaded connection with the adjusting blocks (261), supporting blocks are fixedly arranged on the locking plates (242), and the adjusting blocks (261) are rotationally connected to the supporting blocks;

The bearing plate (21) is fixedly provided with a fixed shell (6), the clamping assembly (2) is arranged in the fixed shell (6), a fixed side plate is fixedly arranged in the fixed shell (6), two ends of the driving rotating shaft (252) are respectively and rotatably connected to the corresponding fixed side plates, two connecting blocks are fixedly arranged in the fixed shell (6), the driving rotating shaft (252) penetrates through the connecting blocks and is rotatably connected with the connecting blocks, the two connecting blocks are positioned on two sides of the driving gear (251), the driving rotating rod is rotatably connected to the corresponding fixed side plates, a stabilizing block is fixedly arranged on the fixed side plates, and the driving threaded cylinder (256) is rotatably connected to the stabilizing block;

the locking unit (24) is provided with two groups, the locking adjusting unit (26) is provided with two groups corresponding to the locking unit (24), the driving threaded rods (257) in the two groups of locking adjusting units (26) are connected with an adjusting synchronous unit (7) together, the adjusting synchronous unit (7) comprises two adjusting belt pulleys and an adjusting belt, the two adjusting belt pulleys are respectively and fixedly adjusted on the corresponding driving threaded rods (257), and the adjusting belt is connected to the two adjusting belt pulleys.

2. The novel numerically controlled bench drill of claim 1, wherein: one side of the fixed shell (6) is provided with an avoidance hole, one of the two driving threaded rods (257) penetrates through the avoidance hole and is fixedly provided with a rotating block (8), and the rotating block (8) is provided with an anti-skid groove.

3. The novel numerically controlled bench drill of claim 1, wherein: the drilling machine (1) is internally and fixedly provided with a lifting hydraulic rod (9), and the output end of the lifting hydraulic rod (9) is fixedly arranged at the bottom of the fixed shell (6).

4. The novel numerically controlled bench drill of claim 1, wherein: two opposite sides of the clamping plates (222) are fixedly provided with rubber blocks, the pre-clamping unit (22) further comprises a limiting rod (223) and a limiting block, the limiting block is fixedly arranged at the bottom of the bearing plate (21), one end of the limiting rod (223) is fixedly arranged on the limiting block, the other end of the limiting rod (223) is fixedly arranged on the fixed block, one end of the pre-clamping spring (221) is fixedly arranged on the limiting block, the other end of the pre-clamping spring (221) is fixedly arranged on the synchronous block (231), the pre-clamping spring (221) is sleeved on the limiting rod (223), the bottom of the clamping plate (222) is fixedly provided with a sliding block, the bearing plate (21) is correspondingly provided with a sliding block, and the sliding block is in sliding fit in the sliding block.

5. The novel numerically controlled bench drill of claim 4, wherein: the locking plate (242) is provided with a through hole corresponding to the position of the limiting rod (223), the bottom of the locking plate (242) is fixedly provided with a U-shaped plate (10), and the locking plate (242) is fixedly arranged with the driving threaded rod (257) through the U-shaped plate (10).