Bearing seat drilling machine tool

Abstract

The utility model discloses a bearing seat drilling machine tool, and belongs to the technical field of bearing seat machining. A multi-shaft drill bit assembly; an upper pressing plate assembly; wherein the lower fixing assembly comprises a lower bottom plate; the plurality of bearing seat brackets are fixed on the upper surface of the lower bottom plate, and a plurality of bearing seats are respectively placed on the bearing seat brackets; the limiting and clamping mechanisms are fixed to the upper surface of the lower bottom plate, the positions and the number of the limiting and clamping mechanisms correspond to those of the bearing seat brackets, and the limiting and clamping mechanisms clamp bearing seats on the corresponding bearing seat brackets respectively; through cooperation of the lower fixing assembly and the upper pressing plate assembly, multiple bearing pedestals can be limited at the same time, and the machining quality of the bearing pedestals is ensured; through the design of the multi-shaft drill bit assembly, the technical problem that in the prior art, bearing seats need to be machined one by one is solved.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing processing technology, and more specifically, to a bearing housing drilling tool. Background Technology

[0002] The driveshaft of a car is the shaft that transmits power. It is the transmission medium through which the gearbox reduces speed and twists, transmitting the power output from the engine to the car's drive wheels. The supporting component required for transmitting motion between the driveshaft and the universal joint is called the bearing housing, also known as the bearing box. The bearing housing is the outer support body for the shaft and bearing, and it plays the role of fixing the bearing and bearing the load of the shaft's movement.

[0003] As the external support of the bearing, the bearing housing is required to be easy to install and maintain. Therefore, bearing housings often adopt a detachable connection method. After the bearing housing is cast, the holes on the end face need to be precision machined according to the mating parts. However, in the traditional bench drill, the hole positions need to be determined first and then machined one by one. In the mass production of bearing housings, this process not only makes it difficult to guarantee the accuracy of the product positioning holes, but also makes the processing steps complicated, time-consuming and labor-intensive, which is not conducive to the control of production costs. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems of low processing efficiency and difficulty in ensuring processing accuracy when using traditional bench drills to process bearing seats, and to propose a bearing seat drilling tooling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bearing housing drilling machine fixture, comprising:

[0007] A lower fixing assembly for providing support for the bearing housing;

[0008] A multi-axis drill bit assembly is located directly above the lower fixed assembly and is used to drill holes in the end face of the bearing housing.

[0009] The upper pressure plate assembly is located between the lower fixing assembly and the multi-axis drill bit assembly, and is used to cooperate with the lower fixing assembly to limit and fix the bearing seat;

[0010] The lower fixing assembly includes: a lower base plate;

[0011] A bearing housing bracket, wherein several bearing housing brackets are fixed to the upper surface of the lower base plate, and several bearing housings are respectively placed on the bearing housing brackets;

[0012] A limiting clamping mechanism is provided, wherein a plurality of the limiting clamping mechanisms are fixed on the upper surface of the lower base plate, and the position and number of the limiting clamping mechanisms correspond to the bearing seat bracket, and the limiting clamping mechanisms respectively clamp the bearing seats on the corresponding bearing seat bracket.

[0013] Furthermore, the limiting clamping mechanism includes:

[0014] A height block, wherein a screw hole is provided on one side of the height block, and a limiting bolt is provided in the screw hole;

[0015] An elastic stop bar assembly is connected to the height block, and the elastic stop bar assembly cooperates with the limiting bolt to clamp the bearing seat.

[0016] Furthermore, the resilient stop assembly includes:

[0017] Piston sleeve, the piston sleeve being connected to the height block;

[0018] A piston rod, one end of which is movably connected inside the piston sleeve;

[0019] A stop lever, one end of which is connected to the end of the piston rod away from the piston sleeve, and moves synchronously with the piston rod;

[0020] A connecting rod, the two ends of which are connected to the piston sleeve and the stop rod respectively, is used to limit the movement trajectory of the free end of the stop rod.

[0021] Furthermore, the multi-axis drill bit assembly includes:

[0022] The spindle box has a plate-like structure, and its lower surface is parallel to the lower base plate;

[0023] An electric motor, which is connected to the spindle box;

[0024] A drill bit spindle, several drill bit spindles are vertically fixed to the lower surface of the spindle box, and the drill bit spindles are respectively aligned with the positions to be machined on the bearing seats;

[0025] A drill bit, which is fixed to the end of the drill bit spindle away from the spindle box.

[0026] Furthermore, the upper pressure plate assembly includes an upper pressure plate and a cutting fluid baffle disposed on the edge of the upper pressure plate; the upper pressure plate has a plurality of bushing holes and a plurality of through holes on its surface;

[0027] The bushing holes correspond to the positions and numbers of the bearing housing brackets, and the shape and size of the bushing holes are adapted to the bearing housing.

[0028] Several through holes are arranged around the bushing hole and are respectively located directly above the position to be machined on the bearing seat. The diameter of the through holes is larger than the diameter of the drill spindle.

[0029] Furthermore, a lifting cylinder is connected between the upper pressure plate and the lower base plate.

[0030] Furthermore, the lower base plate is provided with multiple guide posts, which are perpendicular to the upper surface of the lower base plate;

[0031] The upper pressure plate and the spindle box are provided with guide sleeves that are adapted to the guide post at corresponding positions; the guide post is connected inside the guide sleeve, so that the upper pressure plate and the spindle box can move relative to the lower base plate along the axial direction of the guide post.

[0032] Furthermore, a drill sleeve adapted to the size of the drill bit is provided inside the through hole.

[0033] The beneficial effects of this utility model are as follows: The bearing housing drilling tool provided in this application, through the cooperation of the lower fixing assembly and the upper pressure plate assembly, can simultaneously limit the position of multiple bearing housings, and the loading steps are simple, the clamping effect is stable, and the positioning is automatic and accurate; it optimizes the steps of determining the hole position when processing bearing housings using traditional bench drills in related technologies, ensuring the processing quality of bearing housings; through the design of the multi-axis drill bit assembly, it solves the technical problem that bearing housings need to be processed one by one in related technologies, and improves the processing efficiency of bearing housings. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a bearing housing drilling machine tooling provided in an embodiment of this utility model;

[0035] Figure 2 This is a schematic diagram of the overall structure of a bearing housing drilling machine tooling provided in an embodiment of the present utility model (from another perspective);

[0036] Figure 3 This is a schematic diagram of the lower fixing assembly structure provided in the embodiments of this utility model;

[0037] Figure 4 This is a schematic diagram showing the positional relationship between the lower fixing assembly and the bearing seat in an embodiment of this utility model;

[0038] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0039] Figure 6 This is a schematic diagram of the upper pressure plate structure in an embodiment of the present invention;

[0040] The markings in the diagram are as follows:

[0041] 1. Lower fixed assembly;

[0042] 11. Lower base plate; 111. Guide post; 112. Guide sleeve; 12. Bearing seat bracket; 121. Slot; 13. Limiting clamping mechanism; 131. Height block; 1311. Limiting bolt; 132. Elastic stop rod assembly; 1321. Piston sleeve; 1322. Piston rod; 1323. Connecting rod; 1324. Stop rod; 14. Lifting cylinder;

[0043] 2. Multi-spindle drill bit assembly;

[0044] 21. Spindle box; 22. Motor; 23. Drill spindle; 24. Drill bit;

[0045] 3. Upper pressure plate assembly;

[0046] 31. Upper pressure plate; 311. Bushing hole; 312. Through hole; 313. Drill bushing; 32. Cutting fluid baffle. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] Please see Figures 1 to 6 The embodiment of this application shown provides a bearing housing drilling tool. In practical applications, the bearing housing drilling tool is connected to pneumatic equipment and cutting fluid spraying equipment to perform precision machining of mounting holes on multiple bearing housings simultaneously.

[0052] It should be noted that, as one embodiment of this application, the bearing housing body processed by the bearing housing drilling tool in this embodiment has a cylindrical structure. The middle part of the bearing housing body has a shaft hole that penetrates both end faces of the bearing housing body. A first bushing is provided on the lower end face of the bearing housing body around the edge of the shaft hole. The first bushing has an annular structure. A second bushing is provided on the upper end face of the bearing housing body around the edge of the shaft hole. The second bushing has a segmented columnar structure, and its diameter gradually decreases from the end closer to the upper end face to the end farther away from the upper end face. Four ear plates are provided on the side of the bearing housing body. The end face of the ear plate is on the same plane as the end face of the bearing housing body, and all of them belong to the end face of the bearing housing. The bearing housing drilling tool provided in this application is intended to process mounting holes on the end face of the ear plates.

[0053] Please see Figure 1 and Figure 2 The bearing housing drilling tooling provided in this application includes: a lower fixing assembly 1, a multi-spindle drill bit assembly 2, and an upper pressure plate assembly 3; wherein, the lower fixing assembly 1 is used to provide support and limit the bearing housing; it includes: a lower base plate 11, a bearing housing bracket 12, and a limit clamping mechanism 13.

[0054] Please see Figure 3 In this embodiment, the lower base plate 11 is generally rectangular plate structure, and at least two bearing seat brackets 12 can be provided on its plate surface so that multiple bearing seats can be mounted on the lower fixing assembly 1.

[0055] The bearing housing bracket 12 has a columnar structure, with its lower end fixed to the upper surface of the lower base plate 11 and its upper end provided with a slot 121 adapted to the bearing housing. In this embodiment, the slot 121 is a columnar groove structure that matches the diameter of the first bushing of the bearing housing. After the bearing housing is placed above the bearing housing bracket 12, the first bushing is engaged in the slot 121, thereby enabling the bearing housing bracket 12 to position the bearing housing in the horizontal direction.

[0056] Please see Figure 4 and Figure 5 The limiting clamping mechanism 13 is fixed to the upper surface of the lower base plate 11, and the position and number of the limiting clamping mechanism 13 correspond to the bearing seat bracket 12. The limiting clamping mechanism 13 clamps the bearing seats on the corresponding bearing seat bracket 12. More specifically, the limiting clamping mechanism 13 includes: a height block 131 and an elastic stop rod assembly 132; wherein, the lower end of the height block 131 is fixed to the upper surface of the lower base plate 11 and is located on one side of the bearing seat bracket 12; the side of the height block 131 is provided with screw holes, and The height of the screw hole is greater than the height of the bearing housing bracket 12; the screw hole of the height block 131 is connected to a limit bolt 1311; with this design, after the bearing housing is placed on the bearing housing bracket 12, the ear plate of the bearing housing abuts against the limit bolt 1311, so that the bearing housing is in a preset position on the bearing housing bracket 12, thereby achieving the technical effect of further positioning the bearing housing; it can be understood that by adjusting the exposed length of the limit bolt 1311 on the screw hole, the positioning requirements of various specifications of bearing housing can be met.

[0057] The elastic stop rod assembly 132 is connected to the height block 131 and is used to cooperate with the limit bolt 1311 to achieve a clamping effect on the bearing seat ear plate. The elastic stop rod assembly 132 includes: a piston sleeve 1321, a piston rod 1322, a connecting rod 1323, and a stop rod 1324. The piston sleeve 1321 is fixed to the height block 131 and connected to a pneumatic device via a pipe. One end of the piston rod 1322 is connected inside the piston sleeve 1321. The pneumatic device controls the movement of the piston rod 1322 within the piston sleeve 1321 by changing the gas pressure inside the piston sleeve 1321. One end of the stop rod 1324 is connected to the end of the piston rod 1322 away from the piston sleeve 1321 and is driven by the piston rod 1322 to move synchronously with it. Both ends of the connecting rod 1323 are connected to the piston sleeve 1321 and the stop rod 1324 respectively, for... The movement trajectory of the free end of the stop rod 1324 is restricted. During the extension of the piston rod 1322, the free end of the stop rod 1324 can gradually approach the limiting bolt 1311. The design of the elastic stop rod assembly 132 is to limit the rotation of the bearing housing on the bearing housing bracket 12, so as to prevent the ear plate from deviating from the preset processing position. During the processing, after the bearing housing is placed on the bearing housing bracket 12, the pneumatic equipment controls the piston rod 1322 to push the piston sleeve 1321 outward. At the same time as the piston rod 1322 moves, the free end of the stop rod 1324 approaches the ear plate until the two sides of the ear plate respectively abut against the limiting bolt 1311 and the stop rod 1324, thus completing the horizontal limiting of the bearing housing. By using the above steps to limit the bearing housing before drilling, the drilling accuracy and the consistency of the drilling position can be effectively guaranteed.

[0058] Please see Figure 1 and Figure 2In this embodiment, the multi-spindle drill assembly 2 is located directly above the lower fixed assembly 1 and is used for drilling mounting holes on the end face of the bearing seat. The multi-spindle drill assembly 2 includes: a spindle box 21, a motor 22, a drill spindle 23, and a drill bit 24. The spindle box 21 is a plate-shaped structure that matches the shape and size of the lower base plate 11. The lower surface of the spindle box 21 is parallel to the lower base plate 11, and all bearing seat brackets 12 are covered directly below it. The motor 22 is connected to the spindle box 21, and the spindle box 21 is used to transmit the rotational power of the motor 22 to the drill spindle 23, thereby controlling the speed change and reversal of the drill bit 24. It can be understood that the spindle box 21 can adopt a design similar to... The upper rocker arm or pneumatic device is connected to achieve the effect of vertical movement; the drill spindle 23 is used to drive the drill bit 24 to rotate, and several drill spindles 23 are vertically fixed on the lower surface of the spindle box 21, and the drill spindles 23 correspond to the positions to be processed on the bearing seat ear plate respectively; the drill bit 24 is fixed at the end of the drill spindle 23 away from the spindle box 21; with the above technical solution, when the multi-spindle drill assembly 2 is running, the motor 22 is started first, and the rotational power of the motor 22 is transmitted to the drill bit 24 through the spindle box 21 and the drill spindle 23. Then, the rocker arm or pneumatic device is controlled to make the multi-spindle drill assembly 2 descend and approach the lower fixed assembly 1 to form a hole at the corresponding position of the bearing seat ear plate.

[0059] The upper pressure plate assembly 3 is located between the lower fixed assembly 1 and the multi-spindle drill bit assembly 2, and is used to cooperate with the lower fixed assembly 1 to limit and fix the bearing seat; the upper pressure plate assembly 3 includes: an upper pressure plate 31 and a cutting fluid baffle 32; the shape and size of the upper pressure plate 31 match the lower base plate 11, and it is parallel to the lower base plate 11; please refer to Figure 6The upper pressure plate 31 has several bushing holes 311 and several through holes 312 on its surface. The bushing holes 311 correspond in position and number to the bearing housing bracket 12, and the diameter of the bushing holes 311 matches the diameter of the second bushing on the bearing housing, allowing the second bushing to pass through the bushing hole 311. The through holes 312 are arranged around the bushing holes 311, with the number of through holes 312 around each bushing hole 311 matching the number of ear plates on a single bearing housing. The through holes 312 are located directly above the position to be processed on the ear plate of the bearing housing. In this embodiment, the bearing housing has four ear plates, thus four through holes 312 are correspondingly arranged around each bushing hole 311. The diameter of the through holes 312 is larger than that of the drill spindle. The diameter of 23 allows the drill spindle 23 to pass through the through hole 312 to drill the bearing seat below the upper pressure plate 31. In the bearing seat drilling step, after the bearing seat is positioned on the lower fixed assembly 1, the upper pressure plate assembly 3 descends and approaches the lower fixed assembly 1. At the same time, the second bushing of each bearing seat extends into the corresponding bushing hole 311. The upper pressure plate assembly 3 finally presses the bearing seat onto the bearing seat bracket 12. After the bearing seat is in the pressed state, the drill spindle 23 passes through the corresponding through hole 312 and drills with the drill bit 24. The design of the upper pressure plate 31 is to avoid irregular movement of the bearing seat during the drilling process, so as to maintain the stability of the bearing seat and ensure the machining accuracy of the mounting hole.

[0060] The cutting fluid baffle 32 is located at the edge of the upper pressure plate 31 to prevent the cutting fluid from overflowing from the edge of the upper pressure plate 31. During the processing, the cutting fluid in the cutting fluid spraying equipment is sprayed directly onto the upper surface of the upper pressure plate 31 through the spray nozzle, and flows to the lower bearing seat through the bushing hole 311 and the through hole 312, thereby reducing the temperature of the drill bit 24 and the bearing seat, preventing the material from overheating and deforming, and providing drilling lubrication and cleaning.

[0061] In the above technical solution, in order to realize the lifting function of the upper pressure plate 31, a lifting cylinder 14 is connected between the upper pressure plate 31 and the lower base plate 11, and the lifting cylinder 14 is connected to the pneumatic equipment; when it is necessary to load the bearing seat, the pneumatic equipment controls the lifting cylinder 14 to retract, so that the upper pressure plate 31 presses the bearing seat tightly; after the mounting hole is precision machined, the pneumatic equipment controls the lifting cylinder 14 to lift the upper pressure plate 31, and the bearing seat can be removed.

[0062] In the above technical solution, at least two guide posts 111 are provided on the upper surface of the lower base plate 11, and the guide posts 111 are perpendicular to the upper surface of the lower base plate 11; the upper pressure plate 31 and the corresponding position on the spindle box 21 are provided with guide sleeves 112 that are adapted to the guide posts 111; the guide posts 111 are connected in the guide sleeves 112, so that the upper pressure plate 31 and the spindle box 21 can move relative to the lower base plate 11 along the axial direction of the guide posts 111; the purpose of the design of the guide posts 111 and the guide sleeves 112 is to ensure that the upper pressure plate 31 and the spindle box 21 do not need to re-confirm the hole position through calibration after each batch of bearing seat drilling is completed, and can also maintain the consistency of the drilling position of each batch of bearing seats.

[0063] In a preferred embodiment of this application, a plurality of through holes 312 are provided with drill sleeves 313 respectively; a fitting clearance is provided between the inner hole of the drill sleeve 313 and the outer diameter of the drill bit 24. The fitting clearance can guide the drill bit 24 to drill along a predetermined path, which can effectively prevent the drill bit 24 from deviating or shaking during the drilling process, ensure the straightness and positional accuracy of the drilling, and improve the durability and service life of the drill bit 24.

[0064] The bearing housing drilling tooling provided in this application, through the cooperation of the lower fixed assembly 1 and the upper pressure plate assembly 3, can simultaneously limit the movement of multiple bearing housings, and the loading process is simple, the clamping effect is stable, and the positioning is automatic and accurate. It optimizes the steps of determining the hole position when machining bearing housings using traditional bench drills in related technologies, and ensures the machining quality of bearing housings. Through the design of the multi-axis drill bit assembly 2, it solves the technical problem that bearing housings need to be machined one by one in related technologies, and improves the machining efficiency of bearing housings.

[0065] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bearing housing drilling machine fixture, characterized in that, include: A lower fixing assembly for providing support for the bearing housing; A multi-axis drill bit assembly is located directly above the lower fixed assembly and is used to drill holes in the end face of the bearing housing. The upper pressure plate assembly is located between the lower fixing assembly and the multi-axis drill bit assembly, and is used to cooperate with the lower fixing assembly to limit and fix the bearing seat; The lower fixing assembly includes: a lower base plate; A bearing housing bracket, wherein several bearing housing brackets are fixed to the upper surface of the lower base plate, and several bearing housings are respectively placed on the bearing housing brackets; A limiting clamping mechanism is provided, wherein a plurality of the limiting clamping mechanisms are fixed on the upper surface of the lower base plate, and the position and number of the limiting clamping mechanisms correspond to the bearing seat bracket, and the limiting clamping mechanisms respectively clamp the bearing seats on the corresponding bearing seat bracket.

2. The bearing housing drilling machine fixture according to claim 1, characterized in that, The limiting clamping mechanism includes: A height block, wherein a screw hole is provided on one side of the height block, and a limiting bolt is provided in the screw hole; An elastic stop bar assembly is connected to the height block, and the elastic stop bar assembly cooperates with the limiting bolt to clamp the bearing seat.

3. The bearing housing drilling machine fixture according to claim 2, characterized in that, The resilient stop assembly includes: Piston sleeve, the piston sleeve being connected to the height block; A piston rod, one end of which is movably connected inside the piston sleeve; A stop lever, one end of which is connected to the end of the piston rod away from the piston sleeve, and moves synchronously with the piston rod; A connecting rod, the two ends of which are connected to the piston sleeve and the stop rod respectively, is used to limit the movement trajectory of the free end of the stop rod.

4. The bearing housing drilling machine fixture according to claim 1, characterized in that, The multi-axis drill bit assembly includes: The spindle box has a plate-like structure, and its lower surface is parallel to the lower base plate; An electric motor, which is connected to the spindle box; A drill bit spindle, several drill bit spindles are vertically fixed to the lower surface of the spindle box, and the drill bit spindles are respectively aligned with the positions to be machined on the bearing seats; A drill bit, which is fixed to the end of the drill bit spindle away from the spindle box.

5. The bearing housing drilling machine fixture according to claim 4, characterized in that, The upper pressure plate assembly includes an upper pressure plate and a cutting fluid baffle disposed on the edge of the upper pressure plate; the upper pressure plate has a plurality of bushing holes and a plurality of through holes on its surface; The bushing holes correspond to the positions and numbers of the bearing housing brackets, and the shape and size of the bushing holes are adapted to the bearing housing. Several through holes are arranged around the bushing hole and are respectively located directly above the position to be machined on the bearing seat. The diameter of the through holes is larger than the diameter of the drill spindle.

6. The bearing housing drilling machine fixture according to claim 5, characterized in that, A lifting cylinder is connected between the upper pressure plate and the lower base plate.

7. The bearing housing drilling machine fixture according to claim 5, characterized in that, The lower base plate is provided with multiple guide posts, which are perpendicular to the upper surface of the lower base plate; The upper pressure plate and the spindle box are provided with guide sleeves that are adapted to the guide post at corresponding positions; the guide post is connected inside the guide sleeve, so that the upper pressure plate and the spindle box can move relative to the lower base plate along the axial direction of the guide post.

8. A bearing housing drilling machine fixture according to claim 5, characterized in that, A drill sleeve, which is adapted to the size of the drill bit, is provided inside the through hole.

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