Special double-station drilling machine for compressor piston machining

By designing a dual-station drilling machine, the parallel operation of piston drilling and loading/unloading is achieved using a rotating column and drive assembly. This solves the problems of low efficiency and inconvenient material handling caused by single-station design, and improves the production efficiency and continuity of compressor piston processing.

CN223997362UActive Publication Date: 2026-03-17HUAXIANG (HONGDONG) INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202520559909.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-17
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing compressor piston drilling machines are typically designed for single-station operation, which requires stopping the machine to load and unload materials after each machining operation. This results in wasted time and low efficiency in the production process, and the pistons are not easy to remove after drilling.

Method used

A dual-station drilling machine for compressor piston processing was designed, equipped with two sets of symmetrical drills and station plates. The station plates can be interchanged by rotating columns. Combined with a height adjuster and drive components, drilling and loading/unloading can be carried out in parallel, and materials can be easily picked up by lifting plates.

Benefits of technology

It significantly improves the overall efficiency of the piston drilling process, achieves seamless connection between drilling and loading/unloading, reduces downtime, enhances the continuity and efficiency of the production line, and provides a convenient material handling method.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a double-station drilling machine special for compressor piston machining, and belongs to the technical field of piston machining. Comprising a workbench and two sets of drilling devices in bilateral symmetry, a door-type frame is fixed to the rear side of the upper surface of the workbench through bolts, a center hole is formed in the center of the workbench in a penetrating mode, and two sets of height adjusters are fixedly connected to the lower surface of a cross beam of the door-type frame. According to the piston drilling machine, the two sets of station plates are arranged, the problem of low efficiency caused by the single-station design existing in a traditional drilling machine is effectively solved, and therefore the overall efficiency in the piston drilling process is remarkably improved. When the pistons on one set of station plates are in the drilling state, the other set of station plates can provide sufficient feeding and discharging operation space for workers, and time waste caused by shutdown of the drilling machine in the feeding and discharging process is avoided. And by arranging the lifting plate, the drilled piston can be driven to automatically ascend and descend, and therefore a more convenient material taking mode is provided for workers.
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Description

Technical Field

[0001] This utility model relates to the field of piston processing technology, and in particular to a dual-station drilling machine specifically for processing compressor pistons. Background Technology

[0002] The compressor piston is one of the key components of a compressor, and its machining accuracy directly affects the compressor's performance and efficiency. Pistons typically require drilling to create various holes, such as pin holes, lubrication holes, and cooling holes, to meet their functional requirements during operation.

[0003] However, existing compressor piston drilling machines generally have certain limitations, typically featuring only one workstation. This means that after each round of processing, loading and unloading operations are necessary, causing the drilling machine to be down during this period. This single-workstation design not only wastes time in the production process but also reduces overall processing efficiency. The downtime for each loading and unloading operation directly impacts the continuity and capacity of the production line. Furthermore, the piston, after drilling, is placed inside the clamping position, making it difficult for workers to easily remove it. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a dual-station drilling machine specifically for processing compressor pistons. The technical solution of this utility model is as follows:

[0005] A dual-station drilling machine for processing compressor pistons includes a worktable and two sets of symmetrically arranged drills. A portal frame is bolted to the rear side of the upper surface of the worktable. A central hole is drilled through the center of the worktable. Two sets of height adjusters are fixedly connected to the lower surface of the crossbeam of the portal frame. A fixed seat is fixedly connected to the lower end of each of the two sets of height adjusters. The two sets of drills are slidably connected to the front side of the two sets of fixed seats. A lateral adjustment component for driving the corresponding drill to move is connected inside each of the two sets of fixed seats. A rotating column is rotatably connected to the center hole through a bearing. A center seat is fixedly connected to the upper end of the rotating column. A workstation plate is fixedly connected to the front and rear sides of the center seat. The rotating column can rotate 180 degrees around its axis to interchange the positions of the two sets of workstation plates. Two sets of clamps for holding pistons are slidably connected to the upper surface of the workstation plate. A drive component for driving the two sets of clamps to move closer or further apart is connected to the lower part of the workstation plate. A lifting plate for placing the piston is connected to the center of the upper surface of the workstation plate.

[0006] Optionally, the height adjuster is an electric telescopic rod. Guide members are connected to the lower surface of the crossbeam of the portal frame and on both sides of the height adjuster. The guide members include a sleeve and a sliding rod. The sleeve is fixedly connected to the lower surface of the portal frame, and the sliding rod is slidably connected to the lower end of the sleeve. The lower end of the sliding rod is fixedly connected to the upper surface of the fixed base.

[0007] Optionally, the lateral adjustment assembly includes a fixed frame, a movable block, a nut seat, a one-way threaded rod, and a motor. The drill is fixed by the fixed frame, the movable block is fixedly connected to the rear side of the fixed frame, the nut seat is fixedly connected to the rear side of the movable block by a connecting block, the one-way threaded rod is threaded into the interior of the nut seat, one end of the one-way threaded rod is fixedly connected to the output shaft of the motor, a protective shell is fixedly connected to the rear side of the fixed frame, the motor is fixedly connected inside the protective shell, the other end of the one-way threaded rod is rotatably connected to the side of the protective shell away from the motor, and a notch is provided through the front side of the protective shell to provide sliding space for the connecting block.

[0008] Optionally, a second motor is fixedly connected to the lower surface of the worktable, and the lower end of the rotating column is fixedly connected to the output shaft of the second motor.

[0009] Optionally, the surface of the workstation plate is provided with two sets of through slots. Ear plates are fixedly connected to both ends of the through slots on the lower surface of the workstation plate. Two sets of fixing rods (first type) are fixedly connected to the lower surface of one set of clamps. The lower ends of the two sets of fixing rods (first type) pass through the corresponding through slots and extend to the bottom of the workstation plate. Two sets of fixing rods (second type) are fixedly connected to the lower surface of the other set of clamps. The lower ends of the two sets of fixing rods (second type) pass through the corresponding through slots and extend to the bottom of the workstation plate. The drive assembly includes two sets of nut seats (second type), two sets of nut seats (third type), two sets of bidirectional threaded rods, and one set of motors (third type). The two sets of nut seats (second type) are fixedly connected to the lower ends of the two sets of fixing rods (first type), and the two sets of nut seats (third type) are fixedly connected to the lower ends of the two sets of fixing rods (first type). Connected to the lower ends of two sets of fixed rods, the two sets of bidirectional threaded rods are respectively located directly below the two sets of through slots, and the two sets of bidirectional threaded rods are rotatably connected to the ear plates at corresponding positions. The two sets of nut seats are respectively threaded onto the outside of the positive teeth of the two sets of bidirectional threaded rods, and the two sets of nut seats are respectively threaded onto the outside of the reverse teeth of the two sets of bidirectional threaded rods. One end of each set of bidirectional threaded rods passes through the ear plates at corresponding positions and is fixedly fitted with a synchronous pulley. The outer sides of the two sets of synchronous pulleys are jointly fitted with a synchronous belt. The output shaft of the motor is fixedly connected to one end of one set of bidirectional threaded rods. The motor is fixedly connected to the lower surface of the workstation plate. The lower surface of the workstation plate is fixedly connected to the outer shell.

[0010] Optionally, the upper surface of the worktable is provided with an annular groove, the annular groove being concentric with the central hole, and the lower surface of the outer shell is rotatably connected to multiple sets of rollers, all of which are slidably connected inside the annular groove.

[0011] Optionally, a through hole is provided at the center of the surface of the workstation plate, and an electric push rod is fixedly connected inside the through hole. The telescopic end of the electric push rod is fixedly connected to the lower surface of the lifting plate.

[0012] All of the above optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0013] The beneficial effects of this utility model through the above solution are as follows:

[0014] 1. This utility model features two sets of workstation plates, effectively solving the inefficiency problem caused by the single-station design in traditional drilling machines, thereby significantly improving the overall efficiency of the piston drilling process. When the piston on one set of workstation plates is in the drilling state, the other set of workstation plates provides ample space for operators to load and unload materials, avoiding wasted time due to machine downtime during loading and unloading. Through the alternating operation of the two sets of workstation plates, drilling and loading / unloading operations can be performed in parallel, greatly improving the continuity and efficiency of the production line, while reducing downtime during operation and ensuring seamless connection of the processing process.

[0015] 2. By setting up a lifting plate, the piston that has been drilled can be automatically raised and lowered, thus providing workers with a more convenient way to pick up materials.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall appearance structure of the dual-station drilling machine for compressor piston processing provided by this utility model in one working state;

[0018] Figure 2 A schematic diagram of the overall appearance structure of the dual-station drilling machine for compressor piston processing provided by this utility model in another working state;

[0019] Figure 3 for Figure 1 The right view;

[0020] Figure 4 for Figure 1 Top view sectional view;

[0021] Figure 5 An exploded view of the dual-station drilling machine for compressor piston machining provided by this utility model;

[0022] Figure 6 This is an exploded structural diagram of the height adjuster, the fixed base, and the lateral adjustment assembly in this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the rotating column, workstation plate, clamp, drive assembly and lifting plate in this utility model;

[0024] Figure 8 This is an exploded structural diagram of the workstation plate, clamp, drive assembly, and lifting plate in this utility model.

[0025] The diagram labels are as follows: 1. Workbench; 11. Portal frame; 12. Center hole; 13. Annular slide; 2. Height adjuster; 21. Guide component; 211. Sleeve; 212. Slide rod; 3. Fixed seat; 4. Lateral adjustment assembly; 41. Fixed bracket; 42. Movable block; 43. Nut seat one; 44. One-way threaded rod; 45. Motor one; 46. Protective shell; 461. Notch; 5. Drill; 6. Rotating column; 61. Center seat; 62. Motor II; 7. Workstation plate; 71. Through slot; 72. Through hole; 73. Ear plate; 8. Clamp; 81. Fixing rod I; 82. Fixing rod II; 9. Drive assembly; 91. Nut seat II; 92. Nut seat III; 93. Bidirectional threaded rod; 94. Synchronous pulley; 95. Synchronous belt; 96. Motor III; 97. Housing; 98. Roller; 10. Lifting plate; 101. Electric push rod. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] Please see Figure 1-8This utility model provides a dual-station drilling machine for compressor piston processing, including a worktable 1 and two sets of symmetrically arranged drills 5. A portal frame 11 is bolted to the rear side of the upper surface of the worktable 1. A central hole 12 is drilled through the center of the worktable 1. Two sets of height adjusters 2 are fixedly connected to the lower surface of the crossbeam of the portal frame 11. A fixed base 3 is fixedly connected to the lower end of each of the two sets of height adjusters 2. The two sets of drills 5 are slidably connected to the front side of the two sets of fixed bases 3. The interior of each set of fixed bases 3 is connected to a device for driving the corresponding drill 5 to move. The transverse adjustment component 4 has a rotating column 6 rotatably connected to the inside of the center hole 12 via a bearing. The upper end of the rotating column 6 is fixedly connected to a center seat 61. The front and rear sides of the center seat 61 are fixedly connected to workstation plates 7. The rotating column 6 can rotate 180 degrees around its axis to interchange the positions of the two sets of workstation plates 7. The upper surface of the workstation plate 7 is slidably connected to two sets of clamping seats 8 for holding the piston. The lower part of the workstation plate 7 is connected to a drive component 9 for driving the two sets of clamping seats 8 to move closer or further apart. The center position of the upper surface of the workstation plate 7 is connected to a lifting plate 10 for placing the piston.

[0028] This invention features two sets of workstation plates 7, effectively solving the inefficiency problem caused by the single-station design in traditional drilling machines, thereby significantly improving the overall efficiency of the piston drilling process. When the piston on one set of workstation plates 7 is in the drilling state, the other set of workstation plates 7 provides ample space for loading and unloading operations, avoiding wasted time due to machine downtime during loading and unloading. The alternating operation of the two sets of workstation plates 7 enables parallel drilling and loading / unloading operations, greatly improving the continuity and efficiency of the production line, while reducing downtime and ensuring seamless processing. Specifically, the height adjuster 2 is used to adjust the drilling height of the drill 5 and to raise the drill 5 after drilling, providing sufficient space for the rotation of the two sets of workstation plates 7. The lateral adjustment component 4 is used to move the drill 5 towards or away from the piston, thereby completing the drilling and unloading operations. The rotating column 6 can drive the two sets of workstation plates 7 to interchange positions, moving the drilled piston to the placement position and the un-drilled piston to the drilling position (in the attached diagram, the placement position is the workstation plate 7 on the front side of the worktable 1, and the drilling position is the workstation plate 7 on the rear side of the worktable 1, located between the two sets of drills 5). The drive assembly 9 can drive the two sets of clamps 8 to clamp the pistons placed inside them, thereby ensuring the stability of the pistons during the processing.

[0029] By setting up the lifting plate 10, the piston that has been drilled can be automatically raised and lowered, thus providing workers with a more convenient way to pick up materials.

[0030] It should be noted that the drill 5 is a conventional device in this field, and its structure will not be described in detail here.

[0031] Furthermore, the height adjuster 2 adopts an electric telescopic rod. Guide members 21 are connected to the lower surface of the crossbeam of the portal frame 11 and on both the left and right sides of the height adjuster 2. The guide member 21 includes a sleeve 211 and a sliding rod 212. The sleeve 211 is fixedly connected to the lower surface of the portal frame 11, and the sliding rod 212 is slidably connected to the lower end of the sleeve 211. The lower end of the sliding rod 212 is fixedly connected to the upper surface of the fixed base 3.

[0032] Specifically, the height adjuster 2 is used to adjust the height of the fixed base 3, thereby indirectly changing the height of the drill 5. During drilling, the operator can adjust the height of the drill 5 using the height adjuster 2 according to the drilling requirements, thus changing the drilling height. Secondly, since the two sets of workstation plates 7 will rotate under the drive of the rotating column 6, the position of the drill 5 may interfere with the workstation plate 7 when it rotates. To avoid this, the operator can adjust the height adjuster 2 to raise the position of the drill 5, ensuring that the workstation plate 7 has sufficient space during rotation and avoiding collision with the drill 5. In addition, during the adjustment process of the height adjuster 2, the slide rod 212 will slide relative to the sleeve 211, ensuring that the fixed base 3 rises and falls smoothly along the predetermined path.

[0033] Furthermore, the lateral adjustment assembly 4 includes a fixed frame 41, a movable block 42, a nut seat 43, a one-way threaded rod 44, and a motor 45. The drill 5 is fixed by the fixed frame 41, the movable block 42 is fixedly connected to the rear side of the fixed frame 41, the nut seat 43 is fixedly connected to the rear side of the movable block 42 by a connecting block, the one-way threaded rod 44 is threadedly connected to the inside of the nut seat 43, one end of the one-way threaded rod 44 is fixedly connected to the output shaft of the motor 45, a protective shell 46 is fixedly connected to the rear side of the fixed base 3, the motor 45 is fixedly connected to the inside of the protective shell 46, and the other end of the one-way threaded rod 44 is rotatably connected to the side of the protective shell 46 away from the motor 45. A notch 461 is provided through the front side of the protective shell 46 to provide sliding space for the connecting block.

[0034] Specifically, during drilling, the drill 5 is started, and at the same time, the motor 45 drives the one-way threaded rod 44 to rotate through the output shaft. At this time, the nut seat 43 drives the drill 5 to move towards the piston through the movable block 42 and the fixed bracket 41, thereby completing the drilling operation. After drilling is completed, the motor 45 is driven in the opposite direction, thereby indirectly driving the drill 5 to move away from the piston, thus removing the drill 5 from the piston.

[0035] Furthermore, a second motor 62 is fixedly connected to the lower surface of the worktable 1, and the lower end of the rotating column 6 is fixedly connected to the output shaft of the second motor 62.

[0036] Specifically, when it is necessary to change the position of the two sets of workstation plates 7, the second motor 62 is controlled to operate, and the output shaft of the second motor 62 drives the two sets of workstation plates 7 to rotate through the rotating column 6 and the center seat 61.

[0037] Furthermore, two sets of through slots 71 are formed through the surface of the workstation plate 7. Ear plates 73 are fixedly connected to both ends of the through slots 71 on the lower surface of the workstation plate 7. Two sets of fixing rods 81 are fixedly connected to the lower surface of one set of clamps 8. The lower ends of the two sets of fixing rods 81 pass through the corresponding through slots 71 and extend to the bottom of the workstation plate 7. Two sets of fixing rods 82 are fixedly connected to the lower surface of the other set of clamps 8. The lower ends of the two sets of fixing rods 82 pass through the corresponding through slots 71 and extend to the bottom of the workstation plate 7. The drive assembly 9 includes two sets of nut seats 91, two sets of nut seats 92, two sets of bidirectional threaded rods 93, and a motor 96. The two sets of nut seats 91 are fixedly connected to the lower ends of the two sets of fixing rods 81, and the two sets of nut seats 92 are fixedly connected to the lower ends of the two sets of fixing rods 81. Connected to the lower ends of two sets of fixed rods 82, two sets of bidirectional threaded rods 93 are located directly below two sets of through slots 71, and the two sets of bidirectional threaded rods 93 are rotatably connected to the ear plates 73 at the corresponding positions. Two sets of nut seats 91 are threaded on the outside of the positive teeth of the two sets of bidirectional threaded rods 93, and two sets of nut seats 92 are threaded on the outside of the reverse teeth of the two sets of bidirectional threaded rods 93. One end of each set of bidirectional threaded rods 93 passes through the ear plates 73 at the corresponding positions and is fixedly fitted with a synchronous pulley 94. The outer sides of the two sets of synchronous pulleys 94 are fitted with a synchronous belt 95. The output shaft of the motor 96 is fixedly connected to one end of one set of bidirectional threaded rods 93. The motor 96 is fixedly connected to the lower surface of the workstation plate 7. The lower surface of the workstation plate 7 is fixedly connected to the outer shell 97.

[0038] Specifically, the piston is clamped by two sets of clamping seats 8 driven by the drive assembly 9. The control motor 3 96 operates, driving one set of bidirectional threaded rods 93 to rotate. Under the drive of this set of bidirectional threaded rods 93, the outer synchronous pulley 94 begins to rotate. With the transmission of the synchronous belt 95, the other set of synchronous pulleys 94 also rotates synchronously. At this time, the other set of bidirectional threaded rods 93 begins to rotate, thus ensuring that the movement of the two sets of bidirectional threaded rods 93 is synchronized. As the bidirectional threaded rods 93 rotate, the two sets of nut seats 2 91 and the two sets of nut seats 3 92 move closer together, precisely clamping the piston placed on the lifting plate 10. Conversely, when it is necessary to remove the piston after drilling, simply control the motor 3 96 to operate in the opposite direction, driving the two sets of clamping seats 8 to gradually move away from the piston.

[0039] Furthermore, an annular groove 13 is provided on the upper surface of the workbench 1. The annular groove 13 is concentric with the central hole 12. Multiple sets of rollers 98 are rotatably connected to the lower surface of the outer shell 97. All sets of rollers 98 are slidably connected inside the annular groove 13.

[0040] Specifically, when the rotating column 6 drives the two sets of workstation plates 7 to rotate, the two sets of workstation plates 7 respectively drive the two sets of outer shells 97 to rotate. As the outer shells 97 rotate, the multiple sets of rollers 98 on their lower surfaces can roll within the annular groove 13, improving the smoothness and stability of the rotation of the workstation plates 7.

[0041] Furthermore, a through hole 72 is provided at the center of the surface of the workstation plate 7, and an electric push rod 101 is fixedly connected inside the through hole 72. The telescopic end of the electric push rod 101 is fixedly connected to the lower surface of the lifting plate 10.

[0042] Specifically, the height of the lifting plate 10 is controlled by the extension and retraction of the electric push rod 101. When the piston of the workstation plate 7 completes drilling and rotates to the placement position, the extension end of the electric push rod 101 extends, thereby driving the lifting plate 10 and the piston above it to move upward, making it easier for the operator to remove the piston that has completed drilling. In practical applications, a control switch can be installed on one side of the housing 97 to control the movement of the extension end of the electric push rod 101. After the piston is placed in position, the operator controls the extension end of the electric push rod 101 to retract via the control switch, thereby lowering the lifting plate 10 and the piston placed above it into position.

[0043] Working Principle: Step 1 (operation on workstation A): The operator places the piston to be drilled onto the lifting plate 10 above workstation 7 (workstation A). After placement, the operator controls the extension end of the electric push rod 101 to retract via a control switch, thereby causing the lifting plate 10 and the piston placed above it to descend. Step 2 (operation on workstation A): After the extension end of the electric push rod 101 retracts, the controller controls motor 3 96 to start rotating forward, thereby driving the two sets of bidirectional threaded rods 93 to rotate synchronously, which in turn indirectly drives the two sets of clamps 8 to firmly clamp the piston above the lifting plate 10. Step 3: After the piston is clamped, and the height adjuster 2 (electric extension rod) is in the retracted state, the controller controls motor 2 62 to start rotating forward, indirectly driving the two sets of workstation 7 to rotate via the rotating column 6. After rotating 180 degrees, motor 2 62 stops operating. At this point, the workstation plate 7 (workstation plate A) where the piston is installed rotates to the drilling position, and the workstation plate 7 (workstation plate B) where the piston of the other set of drilled parts is located rotates to the placement position. Fourth step: The controller activates the height adjuster 2, extending its telescopic end, thereby lowering the fixed base 3 and the drill 5 to the designated height. Fifth step: The controller controls the drill 5 to operate. Then, the controller starts the motor 45 in the forward direction, driving the one-way threaded rod 44 to rotate, thereby indirectly moving the drill 5 towards the piston to complete the drilling operation. Sixth step: After drilling is completed, the controller starts the motor 45 in the reverse direction, and the drill 5 begins to move away from the piston, completing the retraction action. Seventh step: The controller activates the height adjuster 2, retracting its telescopic end, raising the fixed base 3 and the drill 5 to the designated height, thus providing sufficient rotation space for the two workstation plates 7 to rotate. Step 8 (performed simultaneously with step 4, and operated on workstation plate B): The controller controls the extension end of the electric push rod 101 to extend, thereby moving the lifting plate 10 and the piston above it upwards. The operator removes the piston after drilling. Next, the piston to be drilled is placed on top of the workstation plate 7 (workstation plate B) that has already been removed, and steps 1 and 2 above are repeated (operated on workstation plate B) to ensure that the piston is successfully clamped. Step 9: After the piston in step 8 is clamped in place, and the height adjuster 2 in step 7 is adjusted simultaneously, the controller controls motor 62 to start in reverse. The rotating column 6 indirectly drives the two sets of workstation plates 7 to exchange positions. At this time, the piston that has completed drilling and workstation plate 7 (workstation plate A) rotate to the placement position, and the new piston and workstation plate 7 (workstation plate B) rotate to the drilling position. Step 10 (operated on workstation A): The telescopic end of the electric push rod 101 extends, causing the lifting plate 10 and the piston above it to move upward. The worker then removes the piston after drilling is complete. Repeat steps 1 through 10.

[0044] Specifically, in the working principle, workstation plate A and workstation plate B are used to distinguish the two sets of workstation plates 7 (not specifically marked in the attached figure) to better illustrate its working principle.

[0045] It should be noted that the electrical equipment mentioned in this article, including the electric telescopic rod, motor 45, drill bit 5, motor 62, motor 96, electric push rod 101, and control switches, all work in conjunction with the controller through electrical connections to ensure the coordinated operation of each component and the smooth progress of the entire drilling operation. Specifically, the controller can use a PLC (Programmable Logic Controller) as the core control unit to achieve automated control of each electrical component. Furthermore, the working principle and circuit structure of the controller are existing technologies in this field, and therefore will not be elaborated upon further in this article.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A double station drilling machine for compressor piston machining, characterized in that: The utility model provides a kind of piston drilling machine, including workbench (1) and two groups of left and right symmetry drill (5), the upper surface rear side of the workbench (1) is bolted with door type frame (11), the central position of the workbench (1) is through and is equipped with center hole (12), the lower surface of the crossbeam of the door type frame (11) is fixedly connected with two groups of height adjuster (2), the lower end of two groups of the height adjuster (2) is fixedly connected with fixed seat (3), two groups of the drill (5) are slidably connected in the front side of two groups of fixed seat (3), the inside of two groups of the fixed seat (3) is connected with transverse adjusting assembly (4) for driving corresponding one side drill (5) to move, the inside of the center hole (12) is rotatably connected with rotating column (6) by bearing, the upper end of the rotating column (6) is fixedly connected with center seat (61), the front and rear sides of the center seat (61) are fixedly connected with work station plate (7), the rotating column (6) can rotate one hundred and eighty degrees around its axis, so that the position of two groups of work station plate (7) is interchanged, the upper surface of the work station plate (7) is slidably connected with two groups of clamping seat (8) for clamping piston, the below of the work station plate (7) is connected with drive assembly (9) for driving two groups of clamping seat (8) to be close to or away from each other, the upper surface center position of the work station plate (7) is connected with lifting plate (10) for placing piston.

2. The double station drilling machine for compressor piston machining according to claim 1, characterized in that, The height adjuster (2) adopts electric telescopic rod, the lower surface of the crossbeam of the door type frame (11) and located the left and right sides of height adjuster (2) are all connected with guide (21), the guide (21) includes sleeve (211) and slide bar (212), the sleeve (211) is fixedly connected on the lower surface of the door type frame (11), the slide bar (212) is slidably connected in the inside lower end of sleeve (211), the lower end of the slide bar (212) is fixedly connected on the upper surface of fixed seat (3).

3. The double station drilling machine for compressor piston machining according to claim 1 or 2, characterized in that, The transverse adjusting assembly (4) includes fixed frame (41), movable block (42), nut seat one (43), one-way threaded rod (44) and motor one (45), the drill (5) is fixed by fixed frame (41), the movable block (42) is fixedly connected on the rear side of fixed frame (41), the nut seat one (43) is fixedly connected on the rear side of movable block (42) by connecting block, the one-way threaded rod (44) is threadedly connected in the inside of nut seat one (43), one end of the one-way threaded rod (44) is fixedly connected with the output shaft of motor one (45), the rear side of the fixed seat (3) is fixedly connected with protective shell (46), the motor one (45) is fixedly connected in the inside of protective shell (46), the other end of the one-way threaded rod (44) is rotatably connected between the inside of protective shell (46) away from motor one (45) one side, the front side of the protective shell (46) is through and is equipped with notch (461) for providing sliding space for connecting block.

4. The double station drilling machine for compressor piston machining according to claim 1, characterized in that, The lower surface of the workbench (1) is fixedly connected with motor two (62), the lower end of the rotating column (6) is fixedly connected with the output shaft of motor two (62).

5. The double station drilling machine for compressor piston machining according to claim 1, characterized in that, The surface of the work station plate (7) is provided with two groups of through grooves (71), the lower surface of the work station plate (7) and located at both ends of the through groove (71) is fixedly connected with an ear plate (73), the lower surface of one group of the clamping seat (8) is fixedly connected with two groups of fixed rods (81), the lower ends of the two groups of fixed rods (81) extend to the lower side of the work station plate (7) through the corresponding position of the through groove (71), the lower surface of the other group of the clamping seat (8) is fixedly connected with two groups of fixed rods (82), the lower ends of the two groups of fixed rods (82) extend to the lower side of the work station plate (7) through the corresponding position of the through groove (71), the driving assembly (9) comprises two groups of nut seats (91), two groups of nut seats (92), two groups of bidirectional threaded rods (93) and a group of motors (96), the two groups of nut seats (91) are fixedly connected at the lower ends of the two groups of fixed rods (81) respectively, the two groups of nut seats (92) are fixedly connected at the lower ends of the two groups of fixed rods (82) respectively, the two groups of bidirectional threaded rods (93) are located directly below the two groups of through grooves (71), and the two groups of bidirectional threaded rods (93) are rotatably connected between the corresponding positions of the ear plates (73), the two groups of nut seats (91) are threadedly sleeved on the outer sides of the two groups of bidirectional threaded rods (93) respectively, the two groups of nut seats (92) are threadedly sleeved on the outer sides of the two groups of bidirectional threaded rods (93) respectively, one end of the two groups of bidirectional threaded rods (93) penetrates the corresponding position of the ear plate (73) and is fixedly sleeved with a synchronous wheel (94), the outer sides of the two groups of synchronous wheels (94) are jointly sleeved with a synchronous belt (95), and the output shaft of the motor (96) is fixedly connected with one end of the bidirectional threaded rod (93).

6. The double station drilling machine for compressor piston machining according to claim 5, characterized in that, The upper surface of the workbench (1) is provided with an annular sliding groove (13), the annular sliding groove (13) and the center hole (12) have the same center, and the lower surface of the shell body (97) is rotatably connected with a plurality of groups of rollers (98), and the plurality of groups of rollers (98) are slidably connected in the inner part of the annular sliding groove (13).

7. The double station drilling machine for compressor piston machining according to claim 1, characterized in that, The surface of the work station plate (7) is provided with a through hole (72) at the central position, the inner part of the through hole (72) is fixedly connected with an electric push rod (101), and the telescopic end of the electric push rod (101) is fixedly connected with the lower surface of the lifting plate (10).