Suspension-type drilling device

Abstract

A suspension-type drilling device, comprising a suspension system (2), a control system (1) and a drilling mechanism (3). A bow-shaped arm (207) in the suspension system (2) is connected to a balancing lead screw (306) in the drilling mechanism (3) by means of a horizontal adjusting sliding block (208). The control system (1) is connected to a driving motor of the drilling mechanism (3) by means of a cable (102). For vehicle structures of special vehicles of different models and the positions and sizes of grouped holes around an axle hole, a fixed drilling device is designed to be of a suspension type, a fixed drilling size is designed to be adjustable, and process automation is achieved for manual clamping and manual drill bit rod replacement; in this way, the machining of grouped holes around axle holes of various vehicle types is met, and the universality and the low cost of the device are realized, thereby reducing the labor intensity of personnel and improving the production efficiency.

Description

A suspended drilling equipment Technical Field

[0001] The invention belongs to the technical field of drilling, and in particular relates to a suspended drilling device. Background Art

[0002] During the assembly, welding, and processing of special vehicles, the bridge holes must be machined after the vehicle body is assembled and welded to ensure the relative position and dimensions of each bridge hole. Furthermore, because the surrounding holes are dimensionally related to the bridge holes, drilling is often performed after the bridge holes are machined. Existing drilling equipment uses tracks laid on both sides of the vehicle body to move between processing positions. Before drilling a hole, the equipment is positioned at the bridge hole and the clamping device is manually adjusted. Because the size of the hole position is determined by a positioning plate, which corresponds to the hole position dimensions, and the drilling unit's external dimensions match a specific vehicle body model, it can only drill holes for one vehicle body model.

[0003] The structure and drilling dimensions of existing drilling equipment are designed based on the drilling of holes around bridge holes on a specific vehicle body. During operation, the equipment moves along a track, dragging the crawler chain. This requires considerable manpower, and the drilling mechanism's clamping device must be manually adjusted. After each drilling group, the cutter bar must be manually disassembled and adjusted to the next drilling group. Due to the significant differences in the structure and drilling position dimensions of different vehicle body models, the existing equipment's track travel and structural design make it impossible to drill holes around bridge holes on a wide range of vehicle body models.

[0004] Summary of the Invention

[0005] The present invention provides a suspended drilling device, and aims to solve the technical problem that the existing structure cannot realize group hole processing around bridge holes of various models of vehicle bodies.

[0006] In order to solve the above technical problems, the present invention provides a suspension drilling device, which is characterized by comprising a suspension system 2 and a drilling mechanism 3; the bow arm in the suspension system is connected to the drilling mechanism;

[0007] The drilling mechanism includes a C-shaped connecting frame (301), a hydraulic tension switch (304), a balancing 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 drilling template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), a brake disc (329), a track (334), a slide block (335), a spindle feed unit (3a), and a drilling unit (3b);

[0008] The lower ends of the two C-shaped connecting frames are respectively fixed to both sides of the connecting base (307); the upper end of the C-shaped connecting frame (301) is installed with a balancing screw (306) for connecting with the lower end of the bow arm in the suspension system;

[0009] The front end of the connecting base (307) is installed with a front bracket (309), and the rear end is installed with a rear bracket (315). The interior of the front bracket (309) is equipped with a fixed disk (311), and the front end is equipped with a guide plate (310); the front end of the fixed disk (311) is equipped with a detection spindle (312) and a hydraulic cylinder (313), and a fixed shaft (323) is installed between the front bracket (309) and the rear bracket (315). The fixed shaft (323) is respectively equipped with a drilling template fixing plate (324), a drilling template (325), a front sleeve (326), a fixed track (327), and a plurality of other components. The sleeve (327), the rear sleeve (328), the brake disc (329), and the locking clamp (322) are installed on the front end of the brake fixing seat (321) on the rear bracket (315), and the two end surfaces of the brake disc (329) are located in the locking clamp (322); the four sides of the fixed track sleeve (327) are slidably connected to a slider fixing base (336), and each slider fixing base (336) is installed with a drilling unit (3b); a group of spindle feed units (3a) are installed at the rear end of the rear flange (338) of the slider fixing base (336).

[0010] Beneficial effects: The present invention designs the fixed drilling equipment into a hanging type, designs the fixed drilling size into an adjustable mode, and automates the manual clamping and manual replacement of the tool rod according to the body structure of special vehicles of different models and the position and size of the holes around the bridge holes. This satisfies the processing of holes around the bridge holes of various models, realizes the versatility and low cost of the equipment, thereby reducing the labor intensity of personnel and improving production efficiency.

[0011] 1. Domestic high-end CNC machine can realize one-time positioning, clamping, automatic angular indexing drilling, and complete the whole set of hole processing.

[0012] 2. Compatible with various types of special vehicles, the equipment can be used for processing holes around bridge holes, with strong versatility and high economy.

[0013] 3. The equipment occupies a small area and is miniaturized, lightweight, automated, flexible, and can be operated by one person, which reduces labor intensity and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the overall structure of the suspended drilling equipment

[0015] Figure 2 Schematic diagram of the control system structure

[0016] Figure 3 Schematic diagram of the suspension system structure

[0017] Among them: 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 axis 205. Ω-shaped guide rail 206. Intelligent power-assisted suspension device 207. Bow arm 208. Horizontal adjustment slider; 301. C-shaped connecting frame 302. LED work light 303. Handrail 304. Hydraulic tension switch 305. Up / down switch 306. Balancing screw 307. Connecting base 308. Rib plate II 309. Front bracket 310. Guide plate 311. Fixed plate 312. Detection spindle 313. Hydraulic cylinder 314. Pressure block 315. Rear bracket 316. Semicircular shield 317. Drive motor I 318. Reducer motor I 319. Gear I 320. Reducer motor mounting base 321. Brake mounting base 322. Locking clamp 323. Fixed shaft 324. Drill template mounting plate 325. Drill template plate 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 splint 334. Track 335. Slider 336. Slider fixing base 337. Front flange 338. Rear flange 339. Gasket 3a. Spindle feed unit 3b. Drilling unit; 3a1. Drive motor II 3a2. Reducer motor II 3a3. Gear III 3a4. Feed screw 3a5. Front support base 3a6. Rear support base 3a7. Gear IV 3a8. Connecting plate 3a9. Square shield; 3b1. Mounting base 3b2. Reducer motor III 3b3. Drive motor III. DETAILED DESCRIPTION

[0018] In order to make the purpose, content and advantages of the present invention more clear, the specific embodiments of the present invention are further described in detail below.

[0019] The present invention provides a suspension drilling device, comprising a suspension system 2, a control system 1, and a drilling mechanism 3;

[0020] The bow arm in the suspension system is connected to the balance screw in the drilling mechanism through a horizontal adjustment slider. The control system is connected to the driving motor of the drilling mechanism through a cable;

[0021] As shown in Figure 2, the control cabinet of the control system is equipped with a human-machine interface 101, which is connected to the drilling mechanism via a cable 102. This is an existing structure.

[0022] As shown in FIG3 , 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 , a bow-shaped arm 207 , and a horizontal adjustment slider 208 ;

[0023] The base plate is fixed to the ground by bolts, the bottom end of the column is installed on the base plate through the rib plate I, and the upper end is rotatably connected to the Ω-shaped guide rail through 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 installed with a bow arm 207, and the bow arm 207 is connected to the balance screw in the drilling mechanism through a horizontal adjustment slider 208 at the lower end. The horizontal adjustment slider 208 can be used to adjust the bow arm 207 so that the bow arm 207 is installed at the center of gravity of the drilling mechanism.

[0024] As shown in FIG4 , the drilling mechanism includes a C-shaped connecting frame (301), an LED working light (302), an armrest (303), a hydraulic tension switch (304), an up and down switch (305), a balancing screw (306), a connecting base (307), a rib plate II (308), a front bracket (309), a guide plate (310), a fixing plate (311), a detection spindle (312), a hydraulic cylinder (313), a pressing block (314), a rear bracket (315), a semicircular shield (316), a driving motor I (317), a reduction motor I (318), a gear I (319), a reduction motor fixing seat ( 320), brake fixing seat (321), locking clamp (322), fixed shaft (323), drilling template fixing plate (324), drilling template (325), front sleeve (326), fixed track sleeve (327), rear sleeve (328), brake disc (329), gear II (330), drill sleeve fixing seat (331), support seat (332), quick release splint (333), track (334), slider (335), slider fixing base (336), front flange (337), rear flange (338), gasket (339), spindle feed unit (3a), drilling unit (3b).

[0025] As shown in FIG4 , the lower ends of the two C-shaped connecting frames are respectively fixed to both sides of the connecting base (307). The front end of the C-shaped connecting frame (301) is installed with an LED work light (302), the rear end is installed with a handrail (303), and the upper end is installed with a balancing screw (306); the handrail (303) is installed with a hydraulic tension switch (304) and an up and down switch (305). The front end of the connecting base (307) is installed with a rib plate II (308) and a front bracket (309), and the rear end is installed with a rib plate II (308) and a rear bracket (315). The front bracket (309) is internally provided with a fixed disk (311), and a guide plate (310) is installed at the front end. The front end of the fixed disk (311) is provided with a detection spindle (312) and a hydraulic cylinder (313), and a pressure block (314) is installed on the hydraulic cylinder (313). The front end of the rear bracket (315) is provided with a semicircular shield (316), and the rear end is provided with a reduction motor fixing seat (320) and a brake fixing seat (321). The rear end of the reduction motor fixing seat (320) is provided with a reduction motor I (318). The front end of the reduction motor I (318) is provided with a gear I (319), and the lower end is provided with a drive motor I (317). The front end of the brake fixing seat (321) is provided with a locking clamp (322). A fixed shaft (323) is installed between the front bracket (309) and the rear bracket (315). The fixed shaft (323) is respectively installed with a drilling template fixing plate (324), a drilling template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), a brake disc (329), and a gear II (330) from front to back. The two end surfaces of the brake disc (329) are located in the locking clamp (322). The gear I (319) is used to transmit power to the gear II. The front end of the drilling template (325) is installed with four sets of drill sleeve fixing seats (331), and the rear end is installed with four sets of support seats (332). The upper end of the support seat (332) is installed with a quick-release splint (333). The fixed track sleeve (327) is installed with eight tracks (334) on all four sides. Eight sliders (335) are installed on the track (334), and the upper ends of the sliders (335) are fixed on the slider fixing base (336). The front flange (337) is installed at the front end of the slider fixing base (336), the rear flange (338) is installed at the rear end, and the gasket (339) is installed at the upper end. The spindle feed unit (3a) is installed at the rear end of the rear flange (338). The drilling unit is installed above the gasket (339);

[0026] The spindle feed unit (3a) includes: a drive motor II (3a1), a reduction motor II (3a2), a gear III (3a3), a feed screw (3a4), a front support seat (3a5), a rear support seat (3a6), a gear IV (3a7), a connecting plate (3a8), and a square shield (3a9).

[0027] As shown in Figure 5 (in the description, the left and right sides of the main view are taken as the front and back), the rear end of the drive motor II (3a1) is installed with a reduction motor II (3a2). The output end of the reduction motor II (3a2) is installed with a gear III (3a3), and the lower end is installed with a rear support seat (3a6). The lower end of the rear support seat (3a6) is fixed on the rear sleeve (328). The reduction motor II (3a2) and the rear support seat (3a6) are fixed by a connecting plate (3a8). A square shield (3a9) is installed at the rear end of the connecting plate (3a8). The feed screw (3a4) is installed on the rear support seat (3a6). The front end of the feed screw (3a4) is connected and fixed to the rear flange (338) by installing the front support seat (3a5), and the rear end is engaged with the gear III (3a3) by installing the gear IV (3a7).

[0028] The drilling unit (3b) comprises: a fixed seat (3b1), a reduction motor III (3b2), a drive motor III (3b3), a quick-change collet (3b4), a tool rod (3b5), and a tool (3b6).

[0029] As shown in FIG6 (in the description, the left and right sides of the main view are regarded as the front and back), a quick-change collet (3b4) is installed at the front end of the fixed seat (3b1), and a reduction motor III (3b2) is installed at the rear end. A tool bar (3b5) is installed at the front end of the quick-change collet (3b4). A tool (3b6) is installed at the front end of the tool bar (3b5). A drive motor III (3b3) is installed at the rear end of the reduction motor III (3b2). The installation position dimensions of the four drilling units (3b) are fixed by a drilling template (325). The drilling template (325) has two groups of holes, A and B, with different pitch circles.

[0030] Working process:

[0031] 1. The operator holds the handrail (303) of the drilling mechanism and uses manpower to rotate the Ω-shaped guide rail (205) and pushes the intelligent power-assisted suspension device (206) to slide on the Ω-shaped guide rail (205) to achieve the forward, backward, left, and right movement of the drilling mechanism (3). The operator controls the intelligent power-assisted suspension device (206) by the up and down switch (305) on the handrail (303) to achieve the up and down power-assisted movement of the drilling mechanism (3).

[0032] 2. Move the drilling mechanism (3) to the bridge hole of the vehicle body, quickly position it through the guide plate (310), use the hydraulic tension switch (304) to control the hydraulic cylinder (313) to stretch, and drive the pressing plate (314) to rotate to the inner wall of the bridge hole and then shrink and press.

[0033] 3. A specific machining program is input 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), transmitting power to the gear II (330). When the drilling unit (3b) is at the zero position (the four drilling units (3b) are symmetrically arranged in groups of two, and the machining points of the two groups of drilling units (3b) have different pitch circles relative to the detection spindle (312). When machining the vehicle body, one of the drilling units (3b) is used according to the size requirements), the locking clamp (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 power to the tool (3b6) through the tool bar (3b5). The driving motor II (3a1) drives the reduction motor II (3a2) to rotate, and transmits the power to the gear IV (3a4) through the gear III (3a3), thereby rotating the feed screw (3a4), driving the slider (335) below the fixed base (336) of the slider of the drilling unit (3a) to slide on the track (334), thereby completing the feeding action of the drilling unit (3a).

[0034] 4. After completing a group of hole processing, the drive motor II (3a1) is reversed, and the retraction action of the drilling unit (3a) is completed by driving the feed screw (3a4) to reverse. At this time, the locking clamp (322) of the brake device releases the brake disc (329), and the drive motor I (317) drives the drilling unit (3a) to rotate to the position of the next group of holes. The brake device repeats the locking action, and the drive motor II (3a1) drives the drilling unit (3a) to repeat the feeding action. This is repeated until the entire group of holes is processed.

[0035] The drilling mechanism takes the column as the center, the Ω-shaped guide rail as the radius, and the bow-shaped arm as the support. It can realize the processing of each bridge hole on one side of the vehicle body, and the drilling range is not less than 5200㎜.

[0036] The installation positions of the four drilling units are fixed by the holes on the drilling template. There are two groups of holes, A and B, on the drilling template, with pitch circles of φ304.5 and φ305 respectively.

[0037] Quick positioning through the arc-shaped guide plate, and the rotatable hydraulic clamping device can be hydraulically clamped with one button.

[0038] Double axis symmetry, CNC simultaneous feed drilling.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A suspended drilling device, characterized in that: it includes a suspension system and a drilling mechanism; the bow arm in the suspension system is connected to the drilling mechanism; the drilling mechanism includes a C-shaped connecting frame (301), a hydraulic tightening switch (304), a balance lead screw (306), a connecting base (307), a front support (309), a guide plate (310), a fixed disk (311), a detection mandrel (312), a hydraulic cylinder (313), a pressure block (314), a rear support (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 main shaft feed unit (3a), and a drilling unit (3b); The lower ends of the two C-shaped connecting frames are respectively fixed on both sides of the connecting base (307), and the upper end of the C-shaped connecting frame (301) is equipped with a balance lead screw (306) for connecting to the lower end of the bow arm in the suspension system; The front end of the connecting base (307) is equipped with a front support (309), and the rear end is equipped with a rear support (315). The inside of the front support (309) is equipped with a fixed disk (311), and the front end is equipped with a guide plate (310); the front end of the fixed disk (311) is equipped with a detection mandrel (312) and a hydraulic cylinder (313). A fixed shaft (323) is installed between the front support (309) and the rear support (315). A drill template fixing plate (324), a drill template (325), a front sleeve (326), a fixed track sleeve (327), a rear sleeve (328), and a brake disc (329) are respectively installed on the fixed shaft (323) from front to back. The locking clamp block (322) is installed at the front end of the brake fixing seat (321) on the rear support (315), and both end faces of the brake disc (329) are located within the locking clamp block (322); the fixed track sleeve (327) is slidably connected to a slider fixing base (336) on each of the four sides, and a drilling unit (3b) is installed on each slider fixing base (336); a set of main shaft feed units (3a) is installed at the rear end of the rear flange (338) of the slider fixing base (336).

2. A suspended drilling device according to claim 1, characterized in that: it further includes a control system, which is connected to the drive motor of the drilling mechanism through a cable.

3. A suspended drilling device according to claim 1, characterized in that: The suspension system includes a bottom plate 201, a column 203, a rotating shaft 204, an Ω-shaped guide rail 205, an intelligent assist suspension device 206, and a bow arm 207; the bottom end of the column is fixed on the bottom plate, and the upper end is rotatably connected to the Ω-shaped guide rail through the rotating shaft. The upper end of the intelligent assist suspension device 206 is connected to the Ω-shaped guide rail and can slide on the guide rail. The lower end is equipped with a bow arm 207, and the lower end of the bow arm 207 is connected to the drilling mechanism and is installed at the center of gravity position of the drilling mechanism.

4. A suspended drilling device according to claim 3, characterized in that: The bottom plate is fixedly connected to the ground through bolts; the bottom end of the column is installed on the bottom plate through stiffener plate I.

5. A suspended drilling device according to claim 1, It is characterized in that: A reduction motor I (318) is installed on the rear bracket (315). A gear I (319) is installed at the front end of the reduction motor I (318), and a driving motor I (317) is installed at the lower end. A gear II (330) is installed at the rear end of the fixed shaft (323) for cooperating with the gear I (319).

6. A suspended drilling device according to claim 1, It is characterized in that: An LED working lamp (302) is installed at the front end of the C-shaped connecting frame (301), and a handrail (303) is installed at the rear end; A hydraulic tightening switch (304) and an up-down switch (305) are installed on the handrail (303).

7. A suspended drilling device according to claim 1, It is characterized in that: Four groups of drill bushing fixing seats (331) are installed at the front end of the drill template (325), and four groups of support seats (332) are installed at the rear end. Quick-release clamping plates (333) are installed at the upper ends of the support seats (332); Eight tracks (334) are installed on the four sides of the fixed track sleeve (327); Sliders (335) are installed on the tracks (334), and the sliders (335) are fixed on the slider fixing base (336).

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

9. A suspended drilling device according to claim 1, It is characterized in that: The main shaft feeding unit (3a) includes a driving motor II (3a1), a reduction motor II (3a2), a gear III (3a3), a feed screw (3a4), a front support seat (3a5), a rear support seat (3a6), a gear IV (3a7), and a connecting plate (3a8); The reduction motor II (3a2) is installed at the rear end of the driving motor II (3a1). The output end of the reduction motor II (3a2) is installed with a gear III (3a3), and the rear support seat (3a6) is installed at the lower end. The rear support seat (3a6) is fixed to the rear sleeve (328) at the lower end; The reduction motor II (3a2) and the rear support seat (3a6) are fixed through the connecting plate (3a8); The feed screw (3a4) is installed on the rear support seat (3a6). The front end of the feed screw (3a4) is connected and fixed to the rear flange (338) through the installation of the front support seat (3a5), and the rear end is meshed with the gear III (3a3) through the installation of the gear IV (3a7).

10. A suspended drilling device according to claim 1, It is characterized in that: By rotating the Ω-shaped guide rail (205) and pushing the intelligent assist suspension device (206) to slide on the Ω-shaped guide rail (205), the front-back, left-right movement of the drilling mechanism (3) is realized. Move the drilling mechanism (3) to the bridge hole of the vehicle body. After quickly positioning through the guide plate (310), 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 contract and clamp. When machining the vehicle body, when the drive motor I (317) drives the fixed shaft to rotate and the drilling unit (3b) is at the zero position, the locking block (322) locks the brake disc (329). The drilling unit (3a) is driven to slide relative to the fixed track sleeve (327) through the spindle feed unit to complete the feeding action of the drilling unit (3a).

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