Clamp for processing spline at end part of fork shaft

Abstract

The utility model relates to a clamp for fork shaft end spline machining and belongs to the technical field of clamps for fork shaft machining, the clamp comprises a base, a bearing plate, a shaft supporting and clamping mechanism and a hole clamping and positioning mechanism, the bearing plate is fixed to the side of the base, the shaft supporting and clamping mechanism is installed on the bearing plate, the hole clamping and positioning mechanism is installed on the base, and the shaft supporting and clamping mechanism is fixed to the bearing plate. The shaft part supporting and clamping mechanism comprises a supporting block and a pressing rotating air cylinder, the supporting block is fixed to the bearing plate and used for supporting the shaft part of the fork shaft, the pressing rotating air cylinder is fixed to the bearing plate, a pressing rod is fixed to the end of an output shaft of the pressing rotating air cylinder, and a pressing block is fixed to the bottom end of the pressing rod. According to the clamp, the shaft part supporting and clamping mechanism and the hole part clamping and positioning mechanism are arranged, axial clamping is conducted from the end of the fork shaft, longitudinal clamping is achieved from the shaft part of the fork shaft, the fork shaft can be firmly fixed in the clamp through clamping in the two directions, and the clamp is low in manufacturing cost and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of a fork shaft machining clamp, in particular to a fork shaft end spline machining clamp. BACKGROUND

[0002] At present, as shown in the fork shaft 6, the end is a spline, and in the machining process, the fork shaft needs to be fixed before spline machining. Figure 1

[0003] The clamp structure used in the prior art is relatively complex, is mostly used in cooperation with an automatic production line, and has a high cost of separate purchase, therefore, there is an urgent need to research and develop a clamp with a simple structure and good clamping effect for fork shaft end spline machining. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a fork shaft end spline machining clamp to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides a fork shaft end spline machining clamp adopting the following technical scheme:

[0006] A fork shaft end spline machining clamp, comprising a base, a bearing plate, a shaft part supporting and clamping mechanism and a hole part clamping and positioning mechanism, the bearing plate is fixed on the side of the base, the shaft part supporting and clamping mechanism is installed on the bearing plate, the hole part clamping and positioning mechanism is installed on the base, the shaft part supporting and clamping mechanism comprises a supporting block and a downward pressing rotary cylinder, the supporting block is fixed on the bearing plate for supporting the shaft part of the fork shaft, the downward pressing rotary cylinder is fixed on the bearing plate, and the output shaft end of the downward pressing rotary cylinder is fixed with a pressing rod, and the bottom end of the pressing rod is fixed with a pressing block.

[0007] The hole part clamping and positioning mechanism comprises an end positioning block, a rotary shaft, a driving piece and clamping assemblies installed on both sides of the base, the end positioning block is fixed on the side of the base, the rotary shaft is rotatably connected on the base, the driving piece is arranged at one end of the rotary shaft and is used to drive the rotary shaft to rotate, and the clamping assemblies are driven by the rotary shaft and are used to clamp the fork shaft.

[0008] The clamping assemblies comprise a fixed frame, a clamping rod and a driving block, opposite threads are arranged on the surfaces of the rotary shaft at positions close to the ends, the driving block is threadedly connected on the rotary shaft, the fixed frame is fixed on the base, the clamping rod is hingedly connected in the middle of the fixed frame, a positioning pin is vertically fixed at one end of the clamping rod, a waist-shaped adjusting groove is arranged on the surface of the driving block, and the positioning pin is movably arranged in the waist-shaped adjusting groove, and the clamping rod can press the fork shaft on the end positioning block.

[0009] ​Preferably, the end positioning block and the support block are both provided with a V-shaped limiting groove which can perfectly match with the end and the arc surface of the shaft part of the fork shaft.

[0010] The driving member is a servo motor which is fixed beside the base and used to drive the rotating shaft to rotate reversely.

[0011] Preferably, in order to ensure the flexible movement of the driving block, a guide rail is fixed on the base corresponding to the position of the driving block, and the driving block is slidingly connected to the guide rail.

[0012] Preferably, in order to improve the clamping effect of the clamping rod, a rubber pad is fixed on the clamping surface of the clamping rod.

[0013] In summary, the present application has at least one of the following beneficial technical effects: the fork shaft end spline machining clamp can axially clamp the end of the fork shaft and longitudinally clamp the shaft part of the fork shaft through the shaft part support clamping mechanism and the hole part clamping positioning mechanism, and the clamping in two directions can firmly fix the fork shaft in the clamp, the clamp has low manufacturing cost and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure schematic view of the fork shaft in the prior art.

[0015] Figure 2 is a whole structure schematic view of the embodiment of the present application.

[0016] Figure 3 is a structure schematic view of the embodiment of the present application in the state of clamping the fork shaft.

[0017] Reference signs: 1, base; 2, bearing plate; 3, shaft part support clamping mechanism; 31, support block; 32, downward pressing rotary cylinder; 33, pressing rod; 4, hole part clamping positioning mechanism; 41, end positioning block; 42, rotating shaft; 43, driving member; 44, fixed frame; 45, clamping rod; 451, positioning pin; 46, driving block; 461, waist circular adjusting groove; 5, guide rail. DETAILED DESCRIPTION

[0018] The following will be specifically explained with reference to the accompanying drawings. Figures 2-3 The present application will be further explained in detail.

[0019] The embodiment of the present application discloses a fork shaft end spline machining clamp, which refers to Figures 2-3, including base 1, bearing plate 2, shaft part support clamping mechanism 3 and hole part clamping positioning mechanism 4, bearing plate 2 is fixed on the side of base 1, shaft part support clamping mechanism 3 is installed on bearing plate 2, hole part clamping positioning mechanism 4 is installed on base 1, shaft part support clamping mechanism 3 includes support block 31 and lower pressing rotary cylinder 32, support block 31 is fixed on bearing plate 2 for supporting the shaft part of the fork shaft, lower pressing rotary cylinder 32 is fixed on bearing plate 2, and the output shaft end of lower pressing rotary cylinder 32 is fixed with pressing rod 33, and the bottom end of pressing rod 33 is fixed with pressing block;

[0020] Hole part clamping positioning mechanism 4 includes end positioning block 41, rotary shaft 42, driving piece 43 and clamping assembly installed on both sides of base 1, end positioning block 41 is fixed on the side of base 1, rotary shaft 42 is rotatably connected on base 1, driving piece 43 is arranged at one end of rotary shaft 42 and is used for driving rotary shaft 42 to rotate, and clamping assembly is driven by rotary shaft 42 and is used for clamping the fork shaft;

[0021] Clamping assembly includes fixed frame 44, clamping rod 45 and driving block 46, the surfaces of the positions close to the ends of the two sides of rotary shaft 42 are provided with thread grooves with opposite rotation directions, driving block 46 is threadedly connected on rotary shaft 42, fixed frame 44 is fixed on base 1, clamping rod 45 is hingedly connected at the middle part of fixed frame 44, positioning pin 451 is vertically fixed at one end of clamping rod 45, waist-shaped adjusting groove 461 is formed in the surface of driving block 46, positioning pin 451 is movably arranged in waist-shaped adjusting groove 461, clamping rod 45 can press the fork shaft on end positioning block 41, in order to improve the clamping effect, rubber pad is fixed on the clamping surface of clamping rod 45, driving piece 43 is a servo motor, the servo motor is fixed beside base 1 and is used for driving rotary shaft 42 to rotate in opposite directions.

[0022] Referring to Figure 2 , V-shaped limiting grooves are formed in the surfaces of end positioning block 41 and support block 31, and the limiting grooves can perfectly cooperate with the arc surfaces of the end and shaft part of the fork shaft.

[0023] Referring to Figure 2 and Figure 3 , in order to ensure that driving block 46 can move flexibly, guide rail 5 is fixed on base 1 at the position corresponding to driving block 46, and driving block 46 is slidingly connected on guide rail 5.

[0024] The implementation principle of the embodiment of the fork shaft end spline machining clamp is:

[0025] The worker places the fork shaft in the clamp, pushes the end against the end positioning block 41, then the servo motor works to rotate the rotating shaft 42, the rotating shaft 42 drives the driving blocks 46 on both sides to move outward, the driving blocks 46 push the positioning pins 451 to move through the waist circular adjusting grooves 461, thereby pushing the clamping rods 45 to overturn, the clamping rods 45 press the end of the fork shaft against the end positioning block 41, then the lower pressing rotating cylinder 32 in the shaft part supporting clamping mechanism 3 works to drive the pressing block to press against the fork shaft, so that the fork shaft can be firmly fixed in the clamp.

[0026] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A fixture for machining splines at the end of a fork shaft, characterized in that: The system includes a base (1), a bearing plate (2), a shaft support clamping mechanism (3), and a hole clamping and positioning mechanism (4). The bearing plate (2) is fixed to the side of the base (1). The shaft support clamping mechanism (3) is mounted on the bearing plate (2). The hole clamping and positioning mechanism (4) is mounted on the base (1). The shaft support clamping mechanism (3) includes a support block (31) and a downward rotating cylinder (32). The support block (31) is fixed on the bearing plate (2) to support the shaft of the fork shaft. The downward rotating cylinder (32) is fixed on the bearing plate (2), and a pressure rod (33) is fixed to the end of the output shaft of the downward rotating cylinder (32). A pressure block is fixed to the bottom end of the pressure rod (33). The hole clamping and positioning mechanism (4) includes an end positioning block (41), a rotating shaft (42), a driving member (43), and clamping assemblies installed on both sides of the base (1). The end positioning block (41) is fixed to the side of the base (1). The rotating shaft (42) is rotatably connected to the base (1). The driving member (43) is located at one end of the rotating shaft (42) and is used to drive the rotating shaft (42) to rotate. The clamping assembly is driven by the rotating shaft (42) and is used to clamp the fork shaft.

2. The fixture for machining the spline at the end of the fork shaft according to claim 1, characterized in that: The clamping assembly includes a fixed frame (44), a clamping rod (45), and a drive block (46). The rotating shaft (42) has threaded grooves with opposite directions on its surfaces near the ends. The drive block (46) is threaded onto the rotating shaft (42). The fixed frame (44) is fixed onto the base (1). The clamping rod (45) is hinged to the fixed frame (44) in the middle. A positioning pin (451) is vertically fixed at one end of the clamping rod (45). An oval adjustment groove (461) is provided on the surface of the drive block (46). The positioning pin (451) is matched and movably disposed in the oval adjustment groove (461). The clamping rod (45) can press the fork shaft onto the end positioning block (41).

3. The fixture for machining the spline at the end of the fork shaft according to claim 1, characterized in that: The end positioning block (41) and the support block (31) are both provided with V-shaped limiting grooves on their surfaces.

4. The fixture for machining the spline at the end of the fork shaft according to claim 1, characterized in that: The driving component (43) is a servo motor, which is fixed next to the base (1) and is used to drive the rotating shaft (42) to rotate in both directions.

5. The fixture for machining the spline at the end of the fork shaft according to claim 2, characterized in that: A guide rail (5) is fixed on the base (1) at the position corresponding to the drive block (46), and the drive block (46) is slidably connected to the guide rail (5).

6. The fixture for machining the spline at the end of the fork shaft according to claim 2, characterized in that: A rubber pad is fixed on the clamping surface of the clamping rod (45).

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