A suspended drilling apparatus

Abstract

The application discloses a kind of suspension drilling equipment, including suspension system, control system, drilling mechanism;Arch arm in suspension system is connected with balance screw rod in drilling mechanism by horizontal adjusting slider, control system is connected with the drive motor of drilling mechanism by cable;The application is aimed at the position size of the hole group around the bridge hole of the body structure and the bridge hole of different models of special vehicle, the fixed drilling equipment is designed into suspension type, the fixed drilling size is designed into adjustable mode, manual clamping and manual replacement of tool rod realize automation, to meet the machining of the hole group around the bridge hole of various vehicle models, realize the universality and low cost of equipment, thereby reduce labor intensity, improve production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of drilling technology, and specifically relates to a suspended drilling device. Background Technology

[0002] In the assembly and welding of special vehicles, to ensure the relative dimensions of each axle hole, the axle holes need to be machined after the vehicle body is assembled and welded. Since the surrounding holes are dimensionally related to the axle holes, the machining of these surrounding holes is often performed after the axle hole machining. Existing drilling equipment uses tracks laid on both sides of the vehicle body to move between machining positions. Before machining the surrounding holes, the equipment is adjusted to the axle hole location and the clamping device is manually adjusted. Because the dimensions of the machined holes are determined by the positioning plate, which corresponds to the dimensions of the surrounding holes, and the external dimensions of the drilling unit are matched to a specific vehicle body model, it can only drill the surrounding holes for one model of vehicle body.

[0003] The existing drilling equipment's structure and hole-machining dimensions are designed based on the surrounding holes of a certain type of vehicle body. During operation, the equipment moves along ground tracks, dragging a tracked chain. This requires significant manual effort, and the clamping device of the drilling mechanism needs manual adjustment. After each set of holes is drilled, the tool holder must be manually disassembled and adjusted to the next set of holes. Due to significant differences in the structure and hole-machining dimensions of different vehicle body models, and influenced by the existing equipment's track travel and structural design, it is impossible to process surrounding holes of bridge holes for multiple vehicle body models. Summary of the Invention

[0004] This invention provides a suspended drilling device, and the technical problem to be solved is: to solve the problem that the existing structure cannot realize the processing of surrounding holes for various types of vehicle body bridge holes.

[0005] To solve the above technical problems, the present invention provides a suspended drilling device, characterized in that it includes a suspension system 2 and a drilling mechanism 3; the bow-shaped arm in the suspension system is connected to the drilling mechanism.

[0006] The drilling mechanism includes a C-type connecting frame (301), a hydraulic tension switch (304), a balance screw (306), a connecting base (307), a front bracket (309), a guide plate (310), a fixed plate (311), a detection spindle (312), a hydraulic cylinder (313), a pressure block (314), a rear bracket (315), a fixed shaft (323), a drill template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), a brake disc (329), a track (334), a slider (335), a spindle feed unit (3a), and a drilling unit (3b).

[0007] The lower ends of the two C-type connecting brackets are fixed on both sides of the connecting base (307), and the upper end of the C-type connecting bracket (301) is equipped with a balance screw (306) for connecting with the lower end of the bow arm in the suspension system.

[0008] A front bracket (309) is installed at the front end of the connecting base (307), and a rear bracket (315) is installed at the rear end. A fixed plate (311) is installed inside the front bracket (309), and a guide plate (310) is installed at the front end. A detection mandrel (312) and a hydraulic cylinder (313) are installed at the front end of the fixed plate (311). A fixed shaft (323) is installed between the front bracket (309) and the rear bracket (315). A drill jig fixing plate (324), a drill template (325), a front sleeve (326), and a fixed track are installed on the fixed shaft (323) from front to back. The sleeve (327), the rear sleeve (328), the brake disc (329), and the locking block (322) are mounted on the front end of the brake fixing seat (321) on the rear bracket (315), and the two ends of the brake disc (329) are located inside the locking block (322); the fixed track sleeve (327) is slidably connected to a slider fixing base (336) on each of its four sides, and a drilling unit (3b) is installed on each slider fixing base (336); a set of spindle feed units (3a) is installed at the rear end of the rear flange (338) of the slider fixing base (336).

[0009] Beneficial effects: This invention addresses the different body structures and axle hole perimeter hole positions of various special vehicle models by designing a fixed drilling equipment as a suspended type, making the fixed drilling size adjustable, and automating manual clamping and tool holder replacement. This satisfies the processing needs of axle hole perimeter holes for multiple vehicle models, achieving equipment versatility and low cost, thereby reducing labor intensity and improving production efficiency.

[0010] 1. Domestic high-end CNC machine enables one-time positioning and clamping, automatic angular indexing drilling, and completion of the entire set of hole machining.

[0011] 2. It is compatible with the machining of surrounding holes for bridge holes of various special vehicles, and the equipment is highly versatile and economical.

[0012] 3. The equipment occupies a small area and features miniaturization, lightweight design, automation, and flexibility. It can be operated by a single person, reducing labor intensity and improving processing efficiency. Attached Figure Description

[0013] Figure 1 Schematic diagram of the overall structure of the suspended drilling equipment

[0014] Figure 2 Control system structure diagram

[0015] Figure 3 Suspension system structural diagram Figure 4 Schematic diagram of drilling mechanism Figure 5 Schematic diagram of spindle feed unit structure Figure 6 Schematic diagram of drilling unit structure

[0016] The components include: 1. Control system; 2. Suspension system; 3. Drilling mechanism; 101. Human-machine interface; 102. Cables; 201. Base plate; 202. Rib plate I; 203. Column; 204. Rotating shaft; 205. Ω-shaped guide rail; 206. Intelligent power-assisted suspension device; 207. Bow-shaped arm; 208. Horizontal adjustment slider; 301. C-type connecting frame; 302. LED work light; 303. Handrail; 304. Hydraulic tension switch; 305. Up / down switch; 306. Balance screw; 307. Connecting base; 308. Rib plate II; 309. Front bracket; 310. Guide plate; 311. Fixing plate; 312. Detection spindle; 313. Hydraulic cylinder; 314. Pressure block; 315. Rear bracket; 316. Semi-circular cover; 317. Drive motor I; 318. Gear motor I; 319. Gear I. 320. Gear motor mounting base; 321. Brake mounting base; 322. Locking clamp; 323. Fixed shaft; 324. Drill jig mounting plate; 325. Drill template; 326. Front sleeve; 327. Fixed track sleeve; 328. Rear sleeve; 329. Brake disc; 330. Gear II; 331. Drill sleeve mounting base; 332. Support base; 333. Quick release clamp; 334. Track; 335. Slider; 336. Slider mounting base; 337. Front flange; 338. Rear flange; 339. Gasket; 3a. Spindle feed unit; 3b. Drilling unit; 3a1. Drive motor II; 3a2. Gear motor II; 3a3. Gear III; 3a4. Feed screw; 3a5. Front support base; 3a6. Rear support base; 3a7. Gear IV; 3a8. Connecting plate; 3a9. Square cover; 3b1. Mounting base; 3b2. Gear motor III; 3b3. Drive motor III. Detailed Implementation

[0017] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below.

[0018] The present invention proposes a suspended drilling device, comprising a suspension system 2, a control system 1, and a drilling mechanism 3;

[0019] The bow-shaped arm in the suspension system is connected to the balance screw in the drilling mechanism via a horizontal adjustment slider. The control system is connected to the drive motor of the drilling mechanism via a cable.

[0020] like Figure 2As shown, the control cabinet of the control system is equipped with a human-machine interface 101, which is connected to the drilling mechanism via cable 102. This is an existing structure.

[0021] like Figure 3 As shown, the suspension system includes a base plate 201, a column 203, a rotating shaft 204, an Ω-shaped guide rail 205, an intelligent power-assisted suspension device 206, an arc arm 207, and a horizontal adjustment slider 208.

[0022] The base plate is fixed to the ground by bolts. The bottom end of the column is installed on the base plate by stiffening plate I. The upper end is rotatably connected to the Ω-shaped guide rail by a rotating shaft. The upper end of the intelligent power-assisted suspension device 206 is connected to the Ω-shaped guide rail and can slide on the guide rail. The lower end is equipped with an arched arm 207. The arched arm 207 is connected to the balance screw in the drilling mechanism by the lower horizontal adjustment slider 208. It can be adjusted by the horizontal adjustment slider 208 so that the arched arm 207 is installed at the center of gravity of the drilling mechanism.

[0023] like Figure 4 As shown, the drilling mechanism includes a C-type connecting frame (301), an LED work light (302), a handrail (303), a hydraulic tension switch (304), an up / down switch (305), a balance screw (306), a connecting base (307), a stiffener II (308), a front support (309), a guide plate (310), a fixed plate (311), a detection spindle (312), a hydraulic cylinder (313), a pressure block (314), a rear support (315), a semi-circular cover (316), a drive motor I (317), a geared motor I (318), a gear I (319), and a geared motor mounting base (32). 0), Brake fixing seat (321), locking clamp (322), fixing shaft (323), drill jig fixing plate (324), drill template (325), front sleeve (326), fixing track sleeve (327), rear sleeve (328), brake disc (329), gear II (330), drill sleeve fixing seat (331), support seat (332), quick release clamp (333), track (334), slider (335), slider fixing base (336), front flange (337), rear flange (338), gasket (339), spindle feed unit (3a), drilling unit (3b).

[0024] like Figure 4As shown, the lower ends of the two C-shaped connecting brackets are fixed to both sides of the connecting base (307). An LED work light (302) is installed at the front end of the C-shaped connecting bracket (301), a handrail (303) is installed at the rear end, and a balance screw (306) is installed at the upper end. A hydraulic tension switch (304) and an up / down switch (305) are installed on the handrail (303). A stiffening plate II (308) and a front bracket (309) are installed at the front end of the connecting base (307), and a stiffening plate II (308) and a rear bracket (315) are installed at the rear end. The front bracket (309) houses a fixed plate (311) with a guide plate (310) at its front end. A detection spindle (312) and a hydraulic cylinder (313) are mounted at the front end of the fixed plate (311), and a pressure block (314) is mounted on the hydraulic cylinder (313). A semi-circular cover (316) is mounted at the front end of the rear bracket (315), and a geared motor mounting base (320) and a brake mounting base (321) are mounted at the rear end. A geared motor I (318) is mounted at the rear end of the geared motor mounting base (320). A gear I (319) is mounted at the front end of the geared motor I (318), and a drive motor I (317) is mounted at the lower end. A locking clamp (322) is mounted at the front end of the brake mounting base (321). A fixed shaft (323) is installed between the front bracket (309) and the rear bracket (315). The fixed shaft (323) is equipped with, from front to back, a drill jig fixing plate (324), a drill template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), a brake disc (329), and a gear II (330). The two ends of the brake disc (329) are located inside the locking block (322), and the gear I (319) is used to transmit power to the gear II. Four sets of drill sleeve fixing seats (331) are installed at the front end of the drill template (325), and four sets of support seats (332) are installed at the rear end. A quick-release clamping plate (333) is installed on the upper end of the support seat (332). Eight tracks (334) are installed on the four sides of the fixed track sleeve (327). Eight sliders (335) are installed on the tracks (334), and the upper ends of the sliders (335) are fixed on the slider fixing base (336). A front flange (337) is mounted at the front end of the slider fixing base (336), a rear flange (338) is mounted at the rear end, and a gasket (339) is mounted on the top end. The spindle feed unit (3a) is mounted at the rear end of the rear flange (338). The drilling unit is mounted above the gasket (339).

[0025] The spindle feed unit (3a) includes: drive motor II (3a1), gear motor II (3a2), gear III (3a3), feed screw (3a4), front support (3a5), rear support (3a6), gear IV (3a7), connecting plate (3a8), and square cover (3a9).

[0026] like Figure 5As shown (in the description, the left and right sides of the front view are considered front and back), a geared motor II (3a2) is mounted at the rear end of drive motor II (3a1). Gear III (3a3) is mounted on the output end of geared motor II (3a2), and a rear support base (3a6) is mounted on its lower end. The lower end of the rear support base (3a6) is fixed to the rear sleeve (328). Geared motor II (3a2) and rear support base (3a6) are fixed by connecting plate (3a8). A square protective cover (3a9) is mounted on the rear end of connecting plate (3a8). A feed screw (3a4) is mounted on the rear support base (3a6). The front end of the feed screw (3a4) is connected and fixed to the rear flange (338) by mounting front support base (3a5), and the rear end meshes with gear III (3a3) by mounting gear IV (3a7).

[0027] The drilling unit (3b) includes: a fixed base (3b1), a geared motor III (3b2), a drive motor III (3b3), a quick-change collet (3b4), a tool holder (3b5), and a cutting tool (3b6).

[0028] like Figure 6 As shown (in the description, left and right in the front view are considered front and back), a quick-change sleeve (3b4) is installed at the front end of the fixed base (3b1), and a geared motor III (3b2) is installed at the rear end. A tool holder (3b5) is installed at the front end of the quick-change sleeve (3b4). A cutting tool (3b6) is installed at the front end of the tool holder (3b5). A drive motor III (3b3) is installed at the rear end of the geared motor III (3b2). The installation position dimensions of the four drilling units (3b) are fixed by the drill template (325), which has two sets of holes, A and B, with different pitch circles.

[0029] Work process:

[0030] 1. The operator uses the handrail (303) of the drilling mechanism to rotate the Ω-shaped guide rail (205) by hand and pushes the intelligent power-assisted suspension device (206) to slide on the Ω-shaped guide rail (205) to realize the forward, backward and left and right movement of the drilling mechanism (3). The intelligent power-assisted suspension device (206) is controlled by the up and down switch (305) on the handrail (303) to realize the up and down assisted movement of the drilling mechanism (3).

[0031] 2. Move the drilling mechanism (3) to the bridge hole of the vehicle body. After quick positioning by the guide plate (310), use the hydraulic tension switch (304) to control the hydraulic cylinder (313) to stretch and drive the pressure plate (314) to rotate to the inner wall of the bridge hole and then shrink and tighten.

[0032] 3. Input a specific machining program through the control cabinet (101) in the control system (1). When the control system (1) starts the machining program, the drive motor I (317) drives the gear I (319) to rotate through the reduction motor I (318), and transmits the power to the gear II (330). When the drilling unit (3b) is at the zero point position (the four drilling units (3b) are arranged in pairs symmetrically, and the machining points of the two groups of drilling units (3b) are different from the pitch circle of the detection mandrel (312). When machining the car body, one group of drilling units (3b) is used according to the size requirements), the locking block (322) of the brake device locks the brake disc (329) to prevent the drilling unit (3b) from rotating during machining. The drive motor III (3b3) drives the reduction motor III (3b2) to rotate and outputs the power to the tool (3b6) through the tool holder (3b5). Drive motor II (3a1) drives gear motor II (3a2) to rotate, and transmits power to gear IV (3a4) through gear III (3a3), thereby causing the feed screw (3a4) to rotate, driving the slider (335) below the slider fixing base (336) of the drilling unit (3a) to slide on the track (334), thus completing the feed action of the drilling unit (3a).

[0033] 4. After completing the machining of a set of holes, the drive motor II (3a1) reverses, which drives the feed screw (3a4) to reverse and completes the retraction action of the drilling unit (3a). At this time, the locking block (322) of the brake device releases the brake disc (329). The drive motor I (317) drives the drilling unit (3a) to rotate to the position of the next set of holes. The brake device repeats the locking action. The drive motor II (3a1) drives the drilling unit (3a) to repeat the feed action. This process is repeated until the machining of the entire set of holes is completed.

[0034] The drilling mechanism, centered on a column, with an Ω-shaped guide rail as its radius and an arched arm as its support, can process bridge holes on one side of the vehicle body, with a drilling range of not less than 5200 mm.

[0035] The installation positions of the four drilling units are fixed by the holes on the drilling template. The drilling template has two sets of holes, A and B, with pitch circles of φ304.5 and φ305, respectively.

[0036] The device uses an arc-shaped guide plate for quick positioning and a rotatable hydraulic clamping device for one-button hydraulic clamping.

[0037] Dual-axis symmetry, CNC simultaneous feed drilling.

[0038] The above description is only a preferred embodiment of the present invention. 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 the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A suspended drilling device, characterized in that: Includes a suspension system (2) and a drilling mechanism (3); the bow arm in the suspension system is connected to the drilling mechanism; The drilling mechanism includes a C-type connecting frame (301), a hydraulic tension switch (304), a balance screw (306), a connecting base (307), a front bracket (309), a guide plate (310), a fixed plate (311), a detection spindle (312), a hydraulic cylinder (313), a pressure block (314), a rear bracket (315), a fixed shaft (323), a drill template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), a brake disc (329), a track (334), a slider (335), a spindle feed unit (3a), and a drilling unit (3b). The lower ends of the two C-type connecting brackets are fixed on both sides of the connecting base (307), and the upper end of the C-type connecting bracket (301) is equipped with a balance screw (306) for connecting with the lower end of the bow arm in the suspension system. A front bracket (309) is installed at the front end of the connecting base (307), and a rear bracket (315) is installed at the rear end. A fixed plate (311) is installed inside the front bracket (309), and a guide plate (310) is installed at the front end. A detection mandrel (312) and a hydraulic cylinder (313) are installed at the front end of the fixed plate (311). A fixed shaft (323) is installed between the front bracket (309) and the rear bracket (315). A drill jig fixing plate (324), a drill template (325), a front sleeve (326), and a fixed track are installed on the fixed shaft (323) from front to back. The sleeve (327), rear sleeve (328), brake disc (329), and locking block (322) are mounted on the front end of the brake mounting seat (321) on the rear bracket (315), and both ends of the brake disc (329) are located inside the locking block (322); the fixed track sleeve (327) is slidably connected to a slider mounting base (336) on each of its four sides, and a drilling unit (3b) is installed on each slider mounting base (336); a set of spindle feed units (3a) is installed at the rear end of the rear flange (338) of the slider mounting base (336); The suspension system includes a base plate (201), a column (203), a rotating shaft (204), an Ω-shaped guide rail (205), an intelligent power-assisted suspension device (206), and an arched arm (207). The bottom end of the column is fixed to the base plate, and the upper end is rotatably connected to the Ω-shaped guide rail through the rotating shaft. The upper end of the intelligent power-assisted suspension device (206) is connected to the Ω-shaped guide rail and can slide on the guide rail. The lower end is equipped with an arched arm (207), and the lower end of the arched arm (207) is connected to the drilling mechanism and installed at the center of gravity of the drilling mechanism.

2. The suspended drilling equipment according to claim 1, characterized in that: It also includes a control system, which is connected to the drive motor of the drilling mechanism via cables.

3. The suspended drilling equipment according to claim 1, characterized in that: The base plate is fixed to the ground with bolts; the bottom of the column is installed on the base plate through stiffening plate I.

4. The suspended drilling equipment according to claim 1, characterized in that: A reducer I (318) is installed on the rear bracket (315). Gear I (319) is installed at the front end of reducer I (318), and drive motor I (317) is installed at the lower end. Gear II (330) is installed at the rear end of the fixed shaft (323) for cooperating with gear I (319).

5. A suspended drilling device according to claim 1, characterized in that: The C-type connecting frame (301) has an LED work light (302) installed at the front end and a handrail (303) installed at the rear end; the handrail (303) is equipped with a hydraulic tension switch (304) and an up / down switch (305).

6. A suspended drilling device according to claim 1, characterized in that: The front end of the drilling template (325) is equipped with 4 sets of drill sleeve fixing seats (331) and the rear end is equipped with 4 sets of support seats (332). The upper end of the support seat (332) is equipped with a quick-release clamp (333). The fixed track sleeve (327) has 8 tracks (334) installed on its four sides. The track (334) is equipped with a slider (335), and the slider (335) is fixed with a slider fixing base (336).

7. A suspended drilling device according to claim 1, characterized in that: The drilling unit (3b) includes a fixed base (3b1), a reducer III (3b2), a drive motor III (3b3), a quick-change collet (3b4), a tool holder (3b5), and a cutting tool (3b6). The quick-change collet (3b4) is installed at the front end of the fixed base (3b1), and the reducer III (3b2) is installed at the rear end. The tool holder (3b5) is installed at the front end of the quick-change collet (3b4), and the cutting tool (3b6) is installed at the front end of the tool holder (3b5). The drive motor III (3b3) is installed at the rear end of the reducer III (3b2). The installation positions of the four drilling units (3b) correspond to the drilling template (325).

8. A suspended drilling device according to claim 1, characterized in that: The spindle feed unit (3a) includes a drive motor II (3a1), a reducer II (3a2), a gear III (3a3), a feed screw (3a4), a front support (3a5), a rear support (3a6), a gear IV (3a7), and a connecting plate (3a8). The reducer II (3a2) is installed at the rear end of the drive motor II (3a1). The gear III (3a3) is installed at the output end of the reducer II (3a2), and the rear support (3a6) is installed at the lower end. The lower end of the rear support (3a6) is fixed on the rear sleeve (328). The reducer II (3a2) and the rear support (3a6) are fixed by the connecting plate (3a8). The feed screw (3a4) is installed on the rear support (3a6). The front end of the feed screw (3a4) is connected and fixed to the rear flange (338) by the front support (3a5), and the rear end is meshed with the gear III (3a3) by the gear IV (3a7).

9. A suspended drilling device according to claim 4, characterized in that: By rotating the Ω-shaped guide rail (205) and pushing the intelligent power-assisted suspension device (206) to slide on the Ω-shaped guide rail (205), the drilling mechanism (3) can move forward, backward, left, and right. The drilling mechanism (3) is moved to the bridge hole of the vehicle body. After being quickly positioned by the guide plate (310), the hydraulic cylinder (313) is controlled to stretch and drive the pressure block (314) to rotate to the inner wall of the bridge hole and then shrink and press. When processing the vehicle body, the drive motor I (317) drives the fixed shaft to rotate. When the drilling unit (3b) is at the zero position, the locking clamp (322) locks the brake disc (329). The main spindle feed unit drives the drilling unit (3b) to slide relative to the fixed track sleeve (327) to complete the feed action of the drilling unit (3b).

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