Automobile rear axle flange machining clamp
By designing a machining fixture for automotive rear axle flanges and utilizing the alignment hole and punch, the problem of drill bit deviation from the design position was solved, improving drilling accuracy and the applicability of the fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGKOU CITY BITE VACUUM TECH
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, when drilling holes in the rear axle flange of automobiles, the drill bit is prone to deviating from the design position, affecting the drilling positioning accuracy of the workpiece.
A machining fixture for automotive rear axle flanges was designed, including a fixed base, a support platform, a fixed block, a drilling disc, and a punch. By cooperating with the positioning hole and the punch, the wobble of the drill bit is limited, thereby improving drilling accuracy.
By using the alignment hole and punch together, the drill bit is prevented from deviating from the design position, thus improving the positioning accuracy of workpiece drilling and the applicability of the fixture.
Smart Images
Figure CN224101885U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automobile part processing technical field especially relates to a flange of automobile rear axle processing clamp. BACKGROUND
[0002] With the continuous progress of automobile industry, the performance and reliability of automobile transmission system are required more and more. As the key component connecting main reducer and transmission shaft, the performance of rear axle flange directly influences the power transmission efficiency, driving stability and safety of automobile, so it occupies an important position in automobile design and manufacture.
[0003] In prior art, when drilling the rear axle flange, the method of drilling is usually directly adopted, so that the drill bit is easy to deviate from the design position when drilling, influencing the workpiece drilling positioning accuracy.
[0004] Therefore, the flange of automobile rear axle processing clamp is provided to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the above problems that when drilling the rear axle flange, the method of drilling is usually directly adopted, so that the drill bit is easy to deviate from the design position when drilling, influencing the workpiece drilling positioning accuracy, the utility model is provided.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a flange of automobile rear axle processing clamp, it includes fixed base, is provided with support platform and fixed block on the fixed base, one fixed block is provided with on both sides of the support platform, the support platform top is provided with drilling disc, is provided with multiple alignment holes and punch on the drilling disc, still be provided with fixed plate on the drilling disc, is provided with rotatable power rod on the fixed plate, the power rod one end bottom is provided with pressure block.
[0007] Preferably, multiple alignment holes and punch are distributed on the same circumference, multiple alignment holes are different in diameter, and increase or decrease in turn along clockwise or counterclockwise.
[0008] Preferably, the support platform is a stepped cylindrical table, and the steps decrease in turn from bottom to top.
[0009] Preferably, the fixed block is provided with a threaded hole away from the support table, a displacement bolt is arranged in the threaded hole, and the part of the displacement bolt outside the fixed block is provided with a resistance disc, and the resistance disc is provided with a crank away from the fixed block.
[0010] Preferably, the fixed block is provided with a dovetail block at the bottom, and the dovetail block is provided with a connecting column away from the support table.
[0011] Preferably, the fixed block is provided with an antiskid pad close to the support table.
[0012] Preferably, the fixed seat is provided with a dovetail groove rail, which cooperates with the dovetail block on the fixed block.
[0013] Preferably, the dovetail groove rail is provided with a connecting column away from one side of the support table, the connecting column on the dovetail groove is provided with a spring on the connecting column on the fixed block, and the centers of the two connecting columns are on the same horizontal line.
[0014] Preferably, the four corners of the fixed seat are provided with connecting holes for fixing on the drilling machine.
[0015] The beneficial effects of the utility model are:
[0016] The automobile rear axle flange is sleeved on the support table, the displacement bolt is rotated, the fixed block moves to the support table and clamps the automobile rear axle flange, then the drilling disc is rotated, the punch is moved above the required punching position, the power rod is rotated upward, the punch is pressed by the pressing block below the power rod to punch a mark point on the automobile rear axle flange, the drilling disc is rotated again, the corresponding size of the alignment hole is moved above the mark point, and drilling is started; the design that the punch is used to punch first and then the alignment hole is used to limit the shaking of the drill bit avoids the drill bit from deviating from the required drilling point during drilling, and the workpiece drilling precision is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art. Among them:
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] Figure 2 It is a structural schematic diagram of the fixed seat of the utility model.
[0020] Figure 3 It is a structural schematic diagram of the fixed block of the utility model.
[0021] Figure 4 It is a structural schematic diagram of the drilling disc of the utility model.
[0022] BRIEF DESCRIPTION OF DRAWINGS
[0023] 1, fixed seat; 11, dovetail groove rail; 12, spring; 13, connecting hole; 2, support table; 3, fixed block; 31, threaded hole; 32, displacement bolt; 33, non-slip pad; 4, drilling disc; 41, alignment hole; 42, punch; 43, fixed plate; 44, power rod; 45, pressing block. DETAILED DESCRIPTION
[0024] In order to make the above objectives, characteristics and advantages of the present application more apparent, a detailed description of the specific embodiments of the present application will be given below with reference to the accompanying drawings.
[0025] With reference to Figures 1 to 4 For an embodiment of the present application, an automobile rear axle flange machining clamp is provided, which comprises a fixing seat 1, the fixing seat 1 is provided with a support table 2 and a fixing block 3, one fixing block 3 is arranged on each side of the support table 2, a drilling disc 4 is arranged on the top of the support table 2, a plurality of alignment holes 41 and a punch 42 are arranged on the drilling disc 4, a fixing plate 43 is further arranged on the drilling disc 4, a rotatable power rod 44 is arranged on the fixing plate 43, and a pressing block 45 is arranged at the bottom of one end of the power rod 44.
[0026] With reference to Figure 1 and Figure 2 In the embodiment, the support table 2 is fixedly arranged at the center of the top of the fixing seat 1, when drilling, the shaft hole in the middle of the automobile rear axle flange is sleeved on the support table 2, further, the support table 2 is a stepped cylindrical table, the steps decrease in turn from bottom to top, the stepped cylindrical table can satisfy the fixation of shaft holes with different diameters, and the applicability of the clamp is improved; the fixing seat 1 is provided with a connecting hole 13 at each corner, and the connecting hole 13 is used for fixing the fixing seat 1 on a drilling machine.
[0027] With reference to Figure 1 and Figure 3 In the embodiment, one fixing block 3 is arranged on each side of the support table 2, a threaded hole 31 is arranged on the side of the fixing block 3 away from the support table 2, but does not penetrate the fixing block 3, a displacement bolt 32 is arranged in the threaded hole 31, the part of the displacement bolt 32 located outside the fixing block 3 is provided with a stop disc, a ratchet is arranged on the side of the stop disc away from the fixing block 3, the displacement bolt 32 is rotatably fixed on the fixing seat 1, and a non-slip pad 33 is arranged on the side of the fixing block 3 close to the support table 2, preferably, the non-slip pad 33 covers the entire cross section of the fixing block 3, so that the friction of the fixing block 3 is increased.
[0028] It can be understood that, since the displacement bolt 32 is rotatably fixed on the fixing seat 1, when the ratchet is rotated, the fixing block 3 will move towards the support table 2, and the displacement bolt 32 only rotates without moving.
[0029] With reference to Figure 2 and Figure 3In the embodiment, the fixed block 3 is provided with dovetail blocks at the bottom, the fixed seat 1 is provided with dovetail groove rails 11, the dovetail groove rails 11 cooperate with the dovetail blocks on the fixed block 3, the dovetail-shaped clamping blocks and clamping grooves can play a better connecting role, avoiding additional movement of the fixed block 3 during movement, the dovetail blocks are provided with connecting columns away from the support table 2, the dovetail groove rails 11 are also provided with connecting columns away from the support table 2, the connecting columns on the dovetail groove rails 11 and the connecting columns on the fixed block 3 are fixedly connected with springs 12, and the centers of the two connecting columns are on the same horizontal line, that is, the springs 12 are in a horizontal position and will not sag due to their own gravity.
[0030] Referring to Figure 1 and Figure 4 In the embodiment, the drilling disc 4 is rotatably arranged on the top of the support table 2, and the connection mode can be selected as that an internal gear is arranged at the bottom of the drilling disc 4, an external gear is arranged on the support table 2, and the drilling disc 4 is rotatably connected to the support table 2 through mutual meshing, the drilling disc 4 is provided with a plurality of alignment holes 41 and punches 42, and the drilling disc 4 is further provided with a fixed plate 43 arranged at the center of the drilling disc 4, the fixed plate 43 is provided with two ear plates, a connecting rod is fixedly arranged between the two ear plates, the fixed plate 43 is provided with a rotatable power rod 44 rotatably connected to the connecting rod, a pressing block 45 is arranged at the bottom of one end of the power rod 44, the pressing block 45 can completely cover the punch 42 when pressed, the end of the power rod 44 without the pressing block 45 is an upwardly inclined rod, that is, the included angle between the power rods 44 on both sides of the fixed plate 43 is obtuse; a top plate is arranged at the top of the punch 42, the top plate prevents the punch 42 from being separated from the drilling disc 4 during the punching process, a spring is arranged between the top plate and the drilling disc 4, the spring drives the punch 42 to reset after the pressing block 45 is separated from the punch 42, to avoid the punch 42 from being separated from the drilling disc 4 during the resetting process, a bottom plate identical to the top plate can be arranged below the drilling disc 4, the plurality of alignment holes 41 and the punch 42 are distributed on the same circumference, that is, the centers of any alignment hole 41 are on the same straight line when the drilling disc 4 rotates, further improving the positioning accuracy of the clamp, further, the diameters of the plurality of alignment holes 41 are different, and increase or decrease in sequence along the clockwise or counterclockwise direction, increasing the versatility of the clamp.
[0031] Working principle: first, the automobile rear axle flange sleeve is connected on the support table 2, then the shift bolt 32 is rotated by rotating the handle, the fixed block 3 moves to the support table 2 direction, the spring 12 in the dovetail groove rail 11 releases the compressed force, further improves the clamping force of the clamp; then the drilling disc 4 is connected on the top of the support table 2, the punch 42 is located above the required drilling position of the automobile rear axle flange by rotating the drilling disc 4, the power rod 44 is rotated upward, the pressure block 45 on the power rod 44 presses the punch 42, the pre-drilling hole is punched on the automobile rear axle flange, after the punching work is completed, the power rod 44 is loosened, the spring on the punch 42 resets the punch 42; then the drilling disc 4 is rotated to the position of the just punched hole, the drilling machine is started, the drill bit drills the automobile rear axle flange through the position hole 41.
[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.
Claims
1. An automobile rear axle flange machining clamp comprising a fixing base (1), characterized in that: The fixed base (1) is provided with a support table (2) and a fixed block (3), the support table (2) is provided with a fixed block (3) on both sides, the support table (2) is provided with a drilling disc (4) on the top, the drilling disc (4) is provided with a plurality of alignment holes (41) and punches (42), the drilling disc (4) is further provided with a fixed plate (43), the fixed plate (43) is provided with a rotatable power rod (44), one end of the power rod (44) is provided with a pressing block (45) on the bottom.
2. The flange machining fixture for a rear axle of an automobile according to claim 1, characterized in that: A plurality of the alignment holes (41) and the punches (42) are distributed on the same circumference, a plurality of the alignment holes (41) are different in diameter, and increase or decrease in turn along the clockwise or counterclockwise.
3. The automotive rear axle flange machining fixture of claim 2, wherein: The support table (2) is a stepped cylindrical table, and the steps decrease in turn from bottom to top.
4. The automotive rear axle flange machining fixture of claim 1, wherein: The fixed block (3) is provided with a threaded hole (31) away from the support table (2), the threaded hole (31) is provided with a displacement bolt (32), the part of the displacement bolt (32) located outside the fixed block (3) is provided with a resistance disc, and the resistance disc is provided with a rocking handle away from the fixed block (3).
5. The automotive rear axle flange machining fixture of claim 4, wherein: The fixed block (3) is provided with a dovetail block on the bottom, and the dovetail block is provided with a connecting column away from the support table (2).
6. The automotive rear axle flange machining fixture of claim 5, wherein: The fixed block (3) is provided with an antiskid pad (33) close to the support table (2).
7. The automotive rear axle flange machining fixture of claim 6, wherein: The fixed base (1) is provided with a dovetail groove rail (11), which cooperates with the dovetail block on the fixed block (3).
8. The automotive rear axle flange machining fixture of claim 7, wherein: The dovetail groove rail (11) is provided with a connecting column away from the support table (2), the connecting column on the dovetail groove is provided with a spring (12) on the connecting column on the fixed block (3), and the centers of the two connecting columns are on the same horizontal line.
9. The automotive rear axle flange machining fixture of claim 1, wherein: The fixed base (1) is provided with connecting holes (13) on four corners for fixing on a drilling machine.