Positioning machining tool for brake cam shaft

Abstract

The utility model provides a positioning machining tool for a brake camshaft, which relates to the technical field of camshaft machining and comprises a protective shell, two mounting shells are slidably arranged in the protective shell, a transmission frame is rotatably arranged in the mounting shells, and a group of clamping components for fixing the camshaft are arranged between the mounting shells and the transmission frame. According to the positioning machining tool for the brake camshaft, a transmission wheel is rotated, a first threaded rod drives a movable lantern ring to move, a transmission frame can be driven to rotate in a mounting shell through a push rod and a transmission rod, and meanwhile a transmission shaft is used for driving a connecting sleeve to slide on the surface of a connecting rod, so that a plurality of clamping plates are tightly attached to the surface of the camshaft; the cam shaft is clamped, sliding of the cam shaft during machining can be avoided through the multiple clamping points, the cam shaft clamping stability is improved, the mounting shell is driven by the mounting base to move in the protection shell, the clamped cam shaft can move, and the cam shaft machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning machining tool of brake camshaft, specifically a kind of positioning machining tool of brake camshaft, belong to camshaft machining technical field. BACKGROUND

[0002] Camshaft is a kind of widely used mechanical components, traditional camshaft manufacturing method has many varieties, there is steel pipe internal expansion method, internal hydraulic method, hot mounting method, powder metallurgy method, knurling connection method and press-in method etc., no matter which method is manufactured camshaft, each camshaft needs to be finished to realize the machining requirement.

[0003] In Chinese patent application publication No.CN212599177U, a kind of high-precision brake camshaft's processing device is disclosed;The utility model camshaft will fall to receiving plate, receiving plate is extruded by camshaft and compresses the support spring of limit plate bottom, plays the buffering effect to camshaft, prevents the deformation of camshaft one end pestle on the ground, improves production quality.

[0004] Although the above-mentioned patent scheme can buffer the force of camshaft falling, the processing device of brake camshaft in the above-mentioned patent only uses two pressing plates to clamp camshaft, the clamping effect of camshaft is poor, and it is not convenient to move the position of camshaft after fixing camshaft, when one side of camshaft is finished, it needs to be clamped by restarting pressing plate, and the operation is more complicated.

[0005] Therefore, a kind of positioning machining tool of brake camshaft is proposed. UTILITY MODEL CONTENTS

[0006] The utility model proposes a kind of positioning machining tool of brake camshaft, utilize multiple clamping points to avoid the sliding of camshaft during processing, improve the stability of camshaft clamping, and camshaft after clamping can be moved, improve camshaft processing efficiency.

[0007] The utility model is realized by the following technical scheme: a kind of positioning machining tool of brake camshaft, including protective shell, the top surface of the protective shell is equipped with a group of moving windows, the inside of the protective shell slides two installation shells, the inside of the installation shell rotates transmission frame, a group of clamping assemblies for fixing camshaft are arranged between the installation shell and transmission frame, the clamping assembly includes two transmission shafts that rotate and are connected in the inside of transmission frame, connecting sleeve is fixed between the two transmission shafts, the inside of the connecting sleeve is slidably connected with connecting rod, the end of the connecting rod away from the installation shell is hinged with clamping plate.

[0008] Further, the clamping assembly further comprises a positioning shaft rotatably sleeved at the end of the connecting rod away from the clamping plate, and the positioning shaft is fixed to the inner side wall of the mounting shell.

[0009] Further, the transmission frame is peripherally sleeved with a plurality of limiting blocks, and the limiting blocks are fixed to the inner side wall of the mounting shell.

[0010] The mounting shell is externally provided with a transmission assembly for driving the transmission frame to rotate, the transmission assembly comprises two support rods fixed to the outer surface of the mounting shell, a first threaded rod rotatably sleeved between the two support rods, a moving collar threadedly sleeved at the periphery of the first threaded rod, a push rod rotatably connected to one side of the moving collar, and a transmission rod rotatably connected to the end of the push rod away from the moving collar and fixed to the periphery of the transmission frame.

[0011] Further, the end of the first threaded rod away from the moving collar is rotatably penetrated through one of the support rods and fixedly sleeved with a transmission wheel, and the transmission wheel is arranged outside the protective shell.

[0012] Further, the mounting shell is peripherally provided with a transmission groove, and the transmission rod slides on the inner side wall of the transmission groove.

[0013] The bottom surface of the mounting shell is fixed with a mounting base sliding on the inner bottom wall of the protective shell, and the bottom surface of the protective shell is provided with a power assembly for driving the mounting base to move, the power assembly comprises two support blocks fixed to the bottom surface of the protective shell and a motor fixed to one side surface of the protective shell, and the output end of the motor is fixed to one end of a second threaded rod, the second threaded rod is rotatably sleeved between the two support blocks, and the periphery of the second threaded rod is threadedly sleeved with a transmission sleeve fixed to the bottom surface of the mounting base.

[0014] Further, the bottom surface of the protective shell is provided with a moving groove, and the transmission sleeve is slidingly connected to the inner side wall of the moving groove.

[0015] The utility model provides a positioning machining frock of brake camshaft, and the beneficial effect thereof is as follows:

[0016] The positioning machining frock of brake camshaft, the rotation transmission wheel and first threaded rod drive moving collar to move, utilize push rod and transmission rod can drive transmission frame rotates in the inside of mounting shell, simultaneously utilize transmission axle drives the connecting sleeve to slide on the surface of connecting rod, make a plurality of clamping plates close to the surface of camshaft, and the camshaft is clamped, utilize a plurality of clamping points can avoid the camshaft to appear the sliding when processing, improve the stability of camshaft clamping.

[0017] The positioning machining tool of the brake camshaft can drive the second threaded rod to rotate by starting the motor, can make the transmission sleeve slide in the inside of the moving groove, and can drive the installation shell to move in the inside of the protective shell through the installation base, so that the clamped camshaft can move, and the machining efficiency of the camshaft is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a three-dimensional structure sectional view of the inside of the protective shell in the utility model;

[0020] Figure 3 It is a three-dimensional structure sectional view of the inside of the installation shell in the utility model;

[0021] Figure 4 It is a three-dimensional structure schematic view of the power assembly in the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, protective shell; 11, moving window; 12, moving groove;

[0024] 2, installation shell; 21, transmission groove;

[0025] 3, transmission frame; 31, limiting block;

[0026] 4, clamping assembly; 41, transmission shaft; 42, connecting sleeve; 43, connecting rod; 44, clamping plate; 45, positioning shaft;

[0027] 5, transmission assembly; 51, support rod; 52, first threaded rod; 53, moving collar; 54, push rod; 55, transmission rod; 56, transmission wheel;

[0028] 6, installation base;

[0029] 7, power assembly; 71, support block; 72, second threaded rod; 73, transmission sleeve; 74, motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0031] Please refer to Figures 1-4The utility model provides an implementation scheme as follows: A kind of positioning machining frock of brake camshaft, including protective shell 1, a group of moving window 11 is set in the top surface of protective shell 1, two installation shells 2 are slid in the inside of protective shell 1, transmission frame 3 is rotated in the inside of installation shell 2, a group of clamping assembly 4 for fixing camshaft is set between installation shell 2 and transmission frame 3, clamping assembly 4 includes two transmission shafts 41 that are rotatably sleeved in the inside of transmission frame 3, connecting sleeve 42 is fixed between the two transmission shafts 41, connecting rod 43 is slidably sleeved in the inside of connecting sleeve 42, the end away from installation shell 2 of connecting rod 43 is hinged with clamping plate 44.

[0032] Please refer to Figure 3 , clamping assembly 4 further includes positioning shaft 45 that is rotatably sleeved in the end away from clamping plate 44 of connecting rod 43, and positioning shaft 45 is fixed to the inner side wall of installation shell 2.

[0033] In the above scheme, transmission frame 3 drives transmission shaft 41 to move, and makes connecting sleeve 42 slide on the surface of connecting rod 43, so that clamping plate 44 is away from transmission frame 3 and tightly adheres to the surface of camshaft.

[0034] A group of limiting blocks 31 are slidably sleeved on the periphery of transmission frame 3, and the limiting blocks 31 are fixed to the inner side wall of installation shell 2.

[0035] Please refer to Figure 2 and Figure 3 Transmission assembly 5 for driving transmission frame 3 to rotate is arranged on the outside of installation shell 2, and transmission assembly 5 includes two support rods 51 fixed to the outer surface of installation shell 2, a first threaded rod 52 rotatably sleeved between the two support rods 51, a moving collar 53 threadedly sleeved on the periphery of the first threaded rod 52, a push rod 54 rotatably connected to one side of the moving collar 53, and a transmission rod 55 fixed to the periphery of the transmission frame 3 rotatably connected to the end away from the moving collar 53 of the push rod 54.

[0036] Please refer to Figure 3 The end away from the moving collar 53 of the first threaded rod 52 is rotatably penetrated through one of the support rods 51 and fixedly sleeved with a transmission wheel 56, and the transmission wheel 56 is arranged on the outside of the protective shell 1.

[0037] In the above scheme, rotating the transmission wheel 56 makes the first threaded rod 52 rotate, so that the moving collar 53 moves on the outside of the installation shell 2, and the push rod 54 and the transmission rod 55 can drive the transmission frame 3 to rotate in the inside of the installation shell 2.

[0038] A transmission groove 21 is formed on the periphery of the installation shell 2, and the transmission rod 55 slides on the inner side wall of the transmission groove 21.

[0039] Please refer to Figure 2 and Figure 4The bottom surface of the installation shell 2 is fixed with an installation base 6 sliding on the bottom wall of the protective shell 1, the lower portion of the protective shell 1 is provided with a power assembly 7 driving the installation base 6 to move, the power assembly 7 comprises two supporting blocks 71 fixed on the bottom surface of the protective shell 1 and a motor 74 fixed on the side surface of the protective shell 1, and the output end of the motor 74 is fixed on one end of a second threaded rod 72, the second threaded rod 72 is rotatably sleeved between the two supporting blocks 71, and a transmission sleeve 73 fixed on the bottom surface of the installation base 6 is sleeved on the periphery of the second threaded rod 72.

[0040] Please pay attention to Figure 4 The bottom surface of the protective shell 1 is provided with a moving groove 12, and the transmission sleeve 73 is slidingly connected to the inner side wall of the moving groove 12.

[0041] In the above scheme, the motor 74 drives the second threaded rod 72 to rotate, so that the transmission sleeve 73 slides in the moving groove 12, and the installation base 6 drives the installation shell 2 to move in the protective shell 1.

[0042] In use, the camshaft to be machined is placed in the two installation shells 2, then the transmission wheel 56 is rotated to drive the first threaded rod 52 to rotate, the moving sleeve ring 53 moves outside the installation shell 2, the push rod 54 and the transmission rod 55 drive the transmission frame 3 to rotate in the installation shell 2, the transmission shaft 41 drives the connecting sleeve 42 to slide on the surface of the connecting rod 43, the clamping plates 44 move away from the transmission frame 3, and when the plurality of clamping plates 44 move close to each other, the camshaft can be clamped, a plurality of clamping points can avoid the camshaft from sliding during machining, and the stability of clamping the camshaft is improved; the motor 74 drives the second threaded rod 72 to rotate, so that the transmission sleeve 73 slides in the moving groove 12, and the installation base 6 drives the installation shell 2 to move in the protective shell 1, the clamped camshaft can be moved, and the machining efficiency of the camshaft is improved.

[0043] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning and machining tool for camshafts, comprising a protective shell (1), characterised in that: The top surface of the protective shell (1) is provided with a group of moving windows (11), the inside of the protective shell (1) is slidably provided with two installation shells (2), the inside of the installation shell (2) is rotatably provided with a transmission frame (3), a group of clamping assemblies (4) for fixing the cam shaft are arranged between the installation shell (2) and the transmission frame (3), the clamping assembly (4) comprises two transmission shafts (41) rotatably sleeved in the inside of the transmission frame (3), a connecting sleeve (42) is fixed between the two transmission shafts (41), a connecting rod (43) is slidably sleeved in the inside of the connecting sleeve (42), and a clamping plate (44) is hinged to the end of the connecting rod (43) away from the installation shell (2). The outside of the installation shell (2) is provided with a transmission assembly (5) for driving the transmission frame (3) to rotate, the transmission assembly (5) comprises two support rods (51) fixed to the outer surface of the installation shell (2), a first threaded rod (52) is rotatably sleeved between the two support rods (51), a moving sleeve ring (53) is threadedly sleeved on the periphery of the first threaded rod (52), a push rod (54) is rotatably connected to one side of the moving sleeve ring (53), and a transmission rod (55) fixed to the periphery of the transmission frame (3) is rotatably connected to the end of the push rod (54) away from the moving sleeve ring (53). The bottom surface of the installation shell (2) is fixedly provided with an installation base (6) slidably arranged on the inner bottom wall of the protective shell (1), the lower part of the protective shell (1) is provided with a power assembly (7) for driving the installation base (6) to move, the power assembly (7) comprises two support blocks (71) fixed to the bottom surface of the protective shell (1) and a motor (74) fixed to one side surface of the protective shell (1), the output end of the motor (74) is fixed to one end of a second threaded rod (72), the second threaded rod (72) is rotatably sleeved between the two support blocks (71), and a transmission sleeve (73) is fixed to the bottom surface of the installation base (6) and is threadedly sleeved on the periphery of the second threaded rod (72).

2. A positioning machining tool for braking a camshaft according to claim 1, characterized in that: The clamping assembly (4) further comprises a positioning shaft (45) rotatably sleeved at the end of the connecting rod (43) away from the clamping plate (44), and the positioning shaft (45) is fixed to the inner side wall of the installation shell (2).

3. A positioning tool for machining of a brake camshaft according to claim 1, characterized in that: A group of limiting blocks (31) are slidably sleeved on the periphery of the transmission frame (3), and the limiting blocks (31) are fixed to the inner side wall of the installation shell (2).

4. A positioning tool for machining of a brake camshaft according to claim 1, characterized in that: The end of the first threaded rod (52) away from the moving sleeve ring (53) is rotatably penetrated through one of the support rods (51) and is fixedly sleeved with a transmission wheel (56), and the transmission wheel (56) is arranged outside the protective shell (1).

5. A positioning tool for machining of a brake camshaft according to claim 1, characterized in that: The periphery of the installation shell (2) is provided with a transmission groove (21), and the transmission rod (55) is slidably connected to the inner side wall of the transmission groove (21).

6. A positioning tool for machining of a brake camshaft according to claim 1, characterized in that: The bottom surface of the protective shell (1) is provided with a moving groove (12), and the transmission sleeve (73) is slidably connected to the inner side wall of the moving groove (12).

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