Special multi-hole positioning drill jig for machining bearing seat oil hole

Abstract

The utility model relates to mechanical processing equipment technical field discloses bearing seat oil hole processing special multi -hole positioning drill jig, including motor, multi -hole drilling mechanism and auxiliary fixing mechanism, and multi -hole drilling mechanism has stroke lever, drill bit, buffer, limit board, support column and bottom plate, stroke lever sliding connection is in motor both ends, and limit board fixedly connected in stroke lever bottom end and is set up with the limit hole, and auxiliary fixing mechanism has fixed block, clamping block no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a multi-hole positioning drill jig for machining oil holes in bearing seats. Background Technology

[0002] As an important component supporting bearings in mechanical equipment, the quality of bearing housing directly affects the stability and lifespan of mechanical operation. In the manufacturing process of bearing housing, the machining of oil holes is an essential key process, which requires the use of professional drilling jig equipment in conjunction with a drilling machine to complete the positioning and drilling of oil holes.

[0003] However, in the existing bearing housing oil hole machining technology, the simple general-purpose single hole drill jig is generally used for operation. This traditional method is not only inefficient because it requires tool setting and drilling for each hole one by one, but the more critical technical defect is that when the bearing housing is placed on the machining platform for drilling, the existing equipment lacks an effective mechanism for multi-directional automatic positioning and locking of the bearing housing.

[0004] As the drill bit rotates at high speed and feeds downwards to cut the surface of the bearing housing, it generates enormous axial pressure and lateral vibration. If the bearing housing is limited by its own weight or simple manual support, it is very easy for the bearing housing to shift position or shake violently under the action of cutting force. This will not only cause the positional accuracy of the drilled oil hole to be seriously out of tolerance, failing to meet the subsequent precision assembly requirements, but may even directly lead to the breakage of the expensive drill bit or the scrapping of the bearing housing workpiece, greatly increasing production costs and severely restricting the improvement of production yield.

[0005] Therefore, this utility model proposes a multi-hole positioning drill jig specifically for machining oil holes in bearing housings to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems of difficulty in fixing the workpiece and easy positional displacement during the machining process in the existing bearing housing drilling process, resulting in poor drilling accuracy and high scrap rate, this utility model aims to provide a multi-hole positioning drill jig for bearing housing oil hole machining with improved structure that can effectively solve the above problems.

[0007] This utility model provides a multi-hole positioning drill jig for machining oil holes in bearing seats, including: a motor, a multi-hole drilling and cutting mechanism, and an auxiliary fixing mechanism. The multi-hole drilling and cutting mechanism includes a stroke rod, a drill bit, a buffer, a limiting hole, a limiting plate, a support column, and a base plate. The stroke rod is slidably connected to the left and right ends of the motor. The limiting plate is fixedly connected to the bottom end of the stroke rod. The support column is fixedly connected to the bottom surface of the limiting plate. The base plate is fixedly connected to the bottom end of the support column. The drill bit is fixedly connected to the bottom surface of the motor. The buffer is sleeved on the lower end of the stroke rod. The limiting hole is opened on the upper surface of the limiting plate. The auxiliary fixing mechanism includes a fixing block, a clamping block one, a spring, a clamping block two, a push rod, and a protective seat. The fixing block is fixedly connected to the outer side of the lower end of the support column. The clamping block one is fixedly connected to the adjacent side of the fixing block. The spring is fixedly connected to the adjacent side of the clamping block one. The protective seat is fixedly connected to the front and rear sides of the bottom end of the multi-hole drilling and cutting mechanism. The push rod is fixedly connected to the center of the inner wall of the protective seat. The clamping block two is fixedly connected to the output end of the push rod.

[0008] Preferably, the stroke rod is located at both ends of the motor, passes through the motor and slides with the motor, and the motor can slide vertically up and down along the stroke rod. This structural design enables the motor to perform stable vertical lifting and lowering movements with the stroke rod as a guide rail.

[0009] Preferably, the buffer is located between the bottom of the motor and the top of the limit plate. When the travel rod slides down, the buffer is in a compressed state. The elastic deformation of the buffer absorbs the impact force when the motor descends, thereby protecting the equipment from damage caused by rigid collisions.

[0010] Preferably, the drill bit is positioned directly below the motor, with the tip of the drill bit vertically aligned with the limiting hole, which penetrates the limiting plate. The limiting hole provides precise guidance and positioning for the drill bit, preventing radial wobble before it contacts the workpiece.

[0011] Preferably, the support columns are set on the left and right sides of the bottom surface of the limiting plate, and the central area of ​​the bottom plate forms a processing station for placing the shaft block. This layout ensures structural stability while leaving enough operating space for the workpiece to be picked up and placed.

[0012] Preferably, the fixing block and the spring are engaged on the left and right sides of the support column. The clamping block tends to be squeezed towards the shaft block by the action of the spring. The restoring force of the spring provides lateral elastic clamping force to achieve automatic preliminary positioning of the workpiece.

[0013] Preferably, the protective seat is located on the front and rear edges of the base plate, and the axis of the push rod is perpendicular to the center of the base plate. The push rod can drive the clamping block two to advance in a straight line towards the center, thereby applying a rigid pushing force to the workpiece.

[0014] Preferably, the push rod drives the clamping block two to move towards the center to abut against the shaft block. The clamping block two and the clamping block one form a four-way surrounding structure of the shaft block in space. This all-round surrounding and fixing method can limit the workpiece's degree of freedom in the horizontal plane to the maximum extent.

[0015] Preferably, the multi-hole drilling mechanism is located above the auxiliary fixing mechanism, and the stroke of the drill bit covers the area surrounded by the auxiliary fixing mechanism, ensuring that the drill bit can smoothly reach the workpiece's machining surface and complete the drilling operation.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem in the prior art where the lack of an effective fixing mechanism during drilling of bearing seats leads to easy displacement of the workpiece during processing, thereby increasing the scrap rate, by setting elastic clamping components consisting of fixing blocks, springs and clamping blocks on the left and right sides of the support column, and rigid pushing components consisting of protective seats, push rods and clamping blocks on the front and rear sides of the base plate. It achieves automatic locking and stable support of the bearing seat through a four-way surrounding structure, ensuring that the workpiece position is accurate and does not move during drilling, thereby significantly reducing the scrap rate and improving the production capacity.

[0018] 2. This utility model solves the problems of low working efficiency of single-hole drilling jig, frequent process switching, and easy radial deviation of drill bit when the drill bit is easily deflected when it rotates and presses down at high speed by setting a multi-hole drilling and cutting mechanism that can slide along the stroke rod below the motor and opening a limiting hole corresponding to the position of the drill bit on the limiting plate at the bottom of the stroke rod. It achieves one-time multi-hole synchronous drilling and cutting, greatly shortening the processing time. At the same time, the limiting hole is used to assist in the calibration and guidance of the drill bit, effectively preventing the drill bit from deviating, thus taking into account both processing efficiency and drilling accuracy.

[0019] 3. This utility model solves the problem in the prior art that drilling and cutting equipment is easily damaged by rigid collision between the bottom of the motor and the lower limit component due to stroke control error during the downward movement of the stroke control rod by installing a buffer on the outer surface of the stroke rod below the motor. It achieves the effect of providing flexible resistance buffer when the motor drives the drill bit to slide downward to drill holes, avoiding hard impact, thereby effectively protecting the motor and drill bit and other precision components, and extending the overall service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a perspective view of the multi-hole positioning drill jig for machining oil holes in bearing seats proposed in this utility model;

[0021] Figure 2 This is a front view of the multi-hole positioning drill jig for machining oil holes in bearing seats proposed in this utility model;

[0022] Figure 3 This is a structural breakdown diagram of the multi-hole drilling and cutting mechanism of the multi-hole positioning drill jig for processing oil holes in bearing seats proposed in this utility model.

[0023] Figure 4 This is a front view of the multi-hole drilling and cutting mechanism of the multi-hole positioning drill jig for processing oil holes in bearing seats proposed in this utility model;

[0024] Figure 5 This is a structural breakdown diagram of the auxiliary fixing mechanism of the multi-hole positioning drill jig for machining oil holes in bearing seats proposed in this utility model.

[0025] Figure 6 This is a side view of the auxiliary fixing mechanism of the multi-hole positioning drill jig for machining oil holes in bearing seats proposed in this utility model.

[0026] Legend:

[0027] 1. Motor; 2. Multi-hole drilling and cutting mechanism; 201. Stroke rod; 202. Drill bit; 203. Buffer; 204. Limiting hole; 205. Limiting plate; 206. Support column; 207. Base plate; 3. Auxiliary fixing mechanism; 301. Fixing block; 302. Clamping block one; 303. Spring; 304. Clamping block two; 305. Push rod; 306. Protective seat; 4. Shaft block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 6 This utility model provides a multi-hole positioning drill jig for machining oil holes in bearing seats. It aims to solve the problem that existing bearing seat drilling often uses single-hole drill jigs, resulting in low work efficiency and the lack of effective fixation of the workpiece during drilling, which easily leads to positional displacement and increases the scrap rate of drilling.

[0031] Please refer to Figure 1 and Figure 2The multi-hole positioning drill jig for machining oil holes in bearing housings includes a motor 1, a stroke rod 201 slidably connected to both ends of the motor 1, a limiting plate 205 fixedly connected to the bottom end of the stroke rod 201, a support column 206 fixedly connected to the bottom surface of the limiting plate 205, and a base plate 207 fixedly connected to the bottom end of the support column 206. The motor 1 provides the rotational power required for drilling and serves as the driving component of the multi-hole drilling and cutting mechanism 2. The stroke rod 201 provides guide support for the lifting and lowering movement of the motor 1. The limiting plate 205 is used to install the limiting hole 204 to calibrate the drill bit 202. The support column 206 connects the limiting plate 205 and the base plate 207 and provides installation space. The base plate 207 supports the entire device and provides a placement position for the shaft block 4.

[0032] Please refer to Figure 4 , Figure 5 and Figure 6 The multi-hole drilling and cutting mechanism 2 includes a motor 1, a stroke rod 201, a drill bit 202, a buffer 203, a limiting hole 204, a limiting plate 205, a support column 206, and a base plate 207. The drill bit 202 is fixedly connected vertically downward to the bottom surface of the motor 1. The stroke rod 201 is slidably connected to the left and right ends of the motor 1. The limiting plate 205 is fixedly connected to the bottom end of the stroke rod 201. The support column 206 is fixedly connected to the bottom surface of the limiting plate 205. The base plate 207 is fixedly connected to the bottom end of the support column 206. The top surface of the limiting plate 205 has a limiting hole 204 corresponding to the position of the drill bit 202. The outer surface of the stroke rod 201 located below the motor 1 is fitted with a buffer 203. The limiting hole 204 is used to guide the drill bit 202 and prevent it from deviating before it contacts the shaft block 4. The buffer 203 is used to provide resistance buffering during the descent of the motor 1 to prevent rigid collisions.

[0033] Meanwhile, the auxiliary fixing mechanism 3 is correspondingly equipped with a fixing block 301, a clamping block 302, a spring 303, a clamping block 304, a push rod 305, and a protective seat 306. The fixing block 301 is fixedly connected to the outer wall of the support column 206. The clamping block 302 is slidably connected to the side of the fixing block 301 near the shaft block 4. The spring 303 is fixedly connected between the fixing block 301 and the clamping block 302. The protective seat 306 is fixedly connected to the top surface of the base plate 207. The push rod 305 is fixedly connected to the inner wall of the protective seat 306. The clamping block 304 is fixedly connected to the output end of the push rod 305. In the assembled state, the fixing blocks 301 on the left and right sides, together with the spring 303 and the clamping block 302, form an elastic clamping structure. The protective seats 306 on the front and rear sides, together with the push rod 305 and the clamping block 304, form a rigid pushing structure. This four-way surrounding structure ensures the high stability and anti-displacement capability of the shaft block 4 during the drilling process.

[0034] In a preferred embodiment, to ensure the smoothness of the lifting motion, the stroke rod 201 is disposed at the left and right ends of the motor 1, and the stroke rod 201 passes through the housing of the motor 1 and slides in cooperation with the motor 1, so that the motor 1 can slide vertically up and down along the length direction of the stroke rod 201.

[0035] As another preferred embodiment, in order to improve drilling accuracy and prevent damage to the drill bit 202, the tip of the drill bit 202 is vertically aligned with the center of the limiting hole 204, the outer diameter of the drill bit 202 is smaller than the inner diameter of the limiting hole 204, and the limiting hole 204 penetrates the upper and lower surfaces of the limiting plate 205.

[0036] As another preferred embodiment, in order to provide effective buffer protection, the buffer 203 is located between the bottom surface of the motor 1 and the top surface of the limiting plate 205. When the stroke rod 201 slides downward relative to the motor 1, that is, when the motor 1 moves downward and approaches the limiting plate 205, the buffer 203 is in a compressed state.

[0037] As another preferred embodiment, in order to arrange the layout reasonably and provide stable support, the support column 206 is set on the left and right sides of the bottom surface of the limiting plate 205, and the fixing block 301 is fixedly connected to the outer side of the lower end of the support column 206, thereby avoiding the material feeding and discharging path of the shaft block 4.

[0038] In another preferred embodiment, in order to achieve lateral elastic pre-tightening, clamping block 302 is located inside the support column 206, and the two ends of spring 303 are respectively fixedly connected to the inner side of fixing block 301 and the outer side of clamping block 302. Fixing block 301 and spring 303 are engaged on the left and right sides of support column 206, and clamping block 302 tends to be squeezed towards shaft block 4 by spring 303.

[0039] In another preferred embodiment, in order to achieve rigid locking at the front and rear, the protective seat 306 is provided on the front and rear edges of the top surface of the base plate 207, and the push rod 305 is horizontally fixed at the center of the inner wall of the protective seat 306. The axis of the push rod 305 is perpendicular to the center of the base plate 207, and the push rod 305 drives the clamping block 304 to move towards the center to abut against the shaft block 4.

[0040] As another preferred embodiment, in order to ensure the clamping contact area, the second clamping block 304 is flat in shape, and the side of the second clamping block 304 facing the center of the base plate 207 is perpendicular to the clamping surface of the first clamping block 302. The second clamping block 304 and the first clamping block 302 form a four-way surrounding structure of the shaft block 4 in space.

[0041] As another preferred embodiment, in order to clarify the processing position, the shaft block 4 is placed in the center of the top surface of the base plate 207, and is located between the first clamping block 302 on the left and right sides and the second clamping block 304 on the front and rear sides. The multi-hole drilling and cutting mechanism 2 is located above the auxiliary fixing mechanism 3, and the stroke of the drill bit 202 covers the area surrounded by the auxiliary fixing mechanism 3.

[0042] Working principle: When drilling is performed, the shaft block 4 is placed in the center of the base plate 207. The clamping blocks 302 on the left and right sides move inward under the elastic force of the spring 303 and initially press against the left and right sides of the shaft block 4. Then, the push rod 305 is activated, and the push rod 305 pushes the clamping blocks 304 on the front and rear sides to move towards the center and press against the front and rear sides of the shaft block 4. Thus, the shaft block 4 is firmly locked in four directions through the auxiliary fixing mechanism 3 to prevent the shaft block 4 from shifting.

[0043] Next, motor 1 is started, and motor 1 moves vertically downward along stroke rod 201, driving drill bit 202 to descend synchronously. Drill bit 202 first passes through limiting hole 204 on limiting plate 205. Limiting hole 204 guides and calibrates drill bit 202 to prevent radial deviation. As motor 1 continues to descend, the bottom surface of motor 1 compresses buffer 203. Buffer 203 generates resistance to buffer the downward pressure and prevent motor 1 from directly hitting limiting plate 205. Finally, drill bit 202 contacts shaft block 4 and performs multi-hole synchronous drilling on shaft block 4. After drilling is completed, motor 1 returns to its original position and moves upward along stroke rod 201, push rod 305 retracts, shaft block 4 is removed, and the processing cycle is completed.

Claims

1. A multi-hole positioning drill jig for machining oil holes in bearing housings, including a motor (1), a multi-hole drilling and cutting mechanism (2), an auxiliary fixing mechanism (3), and a shaft block (4); Its features are, The multi-hole drilling and cutting mechanism (2) includes a stroke rod (201), a drill bit (202), a buffer (203), a limiting hole (204), a limiting plate (205), a support column (206), and a base plate (207). The stroke rod (201) is slidably connected to the left and right ends of the motor (1). The limiting plate (205) is fixedly connected to the bottom end of the stroke rod (201). The support column (206) is fixedly connected to the bottom surface of the limiting plate (205). The base plate (207) is fixedly connected to the bottom end of the support column (206). The drill bit (202) is fixedly connected to the bottom surface of the motor (1). The buffer (203) is sleeved on the lower end of the stroke rod (201). The limiting hole (204) is opened on the upper surface of the limiting plate (205).

2. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 1, characterized in that, The auxiliary fixing mechanism (3) includes a fixing block (301), a clamping block one (302), a spring (303), a clamping block two (304), a push rod (305), and a protective seat (306). The fixing block (301) is fixedly connected to the outer side of the lower end of the support column (206). The clamping block one (302) is fixedly connected to the adjacent side of the fixing block (301). The spring (303) is fixedly connected to the adjacent side of the clamping block one (302). The protective seat (306) is fixedly connected to the front and rear sides of the bottom end of the multi-hole drilling and cutting mechanism (2). The push rod (305) is fixedly connected to the center of the inner wall of the protective seat (306). The clamping block two (304) is fixedly connected to the output end of the push rod (305).

3. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 1, characterized in that, The stroke rod (201) is slidably engaged with the left and right ends of the motor (1). The motor (1) can slide vertically up and down along the stroke rod (201). The buffer (203) is located between the bottom end of the motor (1) and the top end of the limiting plate (205). When the stroke rod (201) slides down, the buffer (203) is in a compressed state.

4. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 1, characterized in that, The drill bit (202) is positioned directly below the motor (1), with the tip of the drill bit (202) vertically aligned with the limiting hole (204), and the limiting hole (204) penetrating the limiting plate (205).

5. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 1, characterized in that, The support column (206) is located on the left and right sides of the bottom surface of the limiting plate (205).

6. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 2, characterized in that, The fixing block (301) and the spring (303) are engaged on the left and right sides of the support column (206).

7. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 2, characterized in that, The protective seat (306) is located on the front and rear edges of the base plate (207), and the axis of the push rod (305) points vertically toward the center of the base plate (207).

8. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 2, characterized in that, The push rod (305) drives the second clamping block (304) to move towards the center to abut against the shaft block (4). The second clamping block (304) and the first clamping block (302) form a four-way surrounding structure of the shaft block (4) in space.

9. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 2, characterized in that, The shaft block (4) is located at the center of the base plate (207), and the clamping block (302) is located on both sides of the shaft block (4).

10. The multi-hole positioning drill jig for machining oil holes in bearing seats according to claim 1, characterized in that, The multi-hole drilling mechanism (2) is located above the auxiliary fixing mechanism (3), and the stroke of the drill bit (202) covers the area surrounded by the auxiliary fixing mechanism (3).

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