Clamp assembly for gear machining

Abstract

The utility model provides a clamp assembly for gear machining, and belongs to the technical field of machinery. The problem that an existing clamp is poor in stability is solved. The clamp assembly for gear machining comprises a rack and a horizontally-arranged supporting plate, a clamp used for horizontally clamping a gear is arranged on the upper side of the supporting plate, two rotating shafts are horizontally and rotationally arranged on the rack, the supporting plate is located between the two rotating shafts, annular and elastic connecting bases are fixed to the two ends of the supporting plate correspondingly, and the two rotating shafts are sleeved with the two connecting bases correspondingly. One side of each connecting seat is provided with an opening, a bolt is arranged at the opening so that the inner wall of each connecting seat can contract inwards to tightly hold the corresponding connecting shaft, inserting holes are axially formed in the adjacent ends of the two rotating shafts, connecting shafts matched with the inserting holes are arranged at the two ends of the supporting plate, the two connecting shafts are inserted into the two inserting holes respectively, and the side walls of the connecting shafts are attached to the inner walls of the corresponding inserting holes. The clamp assembly for gear machining is stable in operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a clamp assembly, in particular to a gear processing clamp assembly. BACKGROUND

[0002] The gear processing clamp assembly is a key part for ensuring the precision and efficiency of gear processing.

[0003] The existing gear clamp structure is similar to a steel structure welding clamping device (application number: 202322163115.X) disclosed by Chinese patent library, which comprises a clamping table, a rotary adjusting table and a swing adjusting table; the lower end outer curved surface of the clamping table is fixedly connected with a circular gear ring, the front end side wall of the rotary adjusting table is fixedly installed with a rotary adjusting motor, and the upper end transmission shaft part of the rotary adjusting motor is fixedly installed with a first gear; the two sides of the rotary adjusting table are fixedly connected with connecting columns, the outer curved surface of the middle part of the connecting column is fixedly connected with a fan-shaped swing tooth, the upper end outer side wall of the swing adjusting table is fixedly installed with a swing adjusting motor, and the inner side transmission shaft part of the swing adjusting motor is fixedly installed with a second gear.

[0004] In order to facilitate the disassembly and assembly of the rotary adjusting table, the existing structure directly utilizes the pipe clamp to tightly connect the connecting column to realize the positioning of the rotary adjusting table, but when this structure is used, the force is completely applied on the pipe clamp, and the pipe clamp is prone to loosening, which affects the use of the clamping device. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in the prior art and provides a gear processing clamp assembly with stable work.

[0006] The utility model discloses a gear processing clamp assembly, which comprises a rack and a horizontally arranged support plate, a clamp for horizontally clamping a gear is arranged on the upper side of the support plate, two rotating shafts are horizontally arranged on the rack, the two rotating shafts are coaxially arranged, and the support plate is between the two rotating shafts, elastic connecting seats in the shape of a ring are fixedly arranged at the two ends of the support plate, the two connecting seats are respectively sleeved on the two rotating shafts, one side of the connecting seat is provided with an opening, and a bolt is arranged at the opening to make the inner wall of the connecting seat shrink inward to tightly hold the corresponding connecting shaft, characterized in that the end parts adjacent to each other of the two rotating shafts are axially provided with insertion holes, the two ends of the support plate are provided with connecting shafts matched with the insertion holes, the two connecting shafts are respectively inserted into the two insertion holes, and the side wall of the connecting shaft is attached to the inner wall of the corresponding insertion hole.

[0007] The connecting shaft is inserted into the insertion hole, and the side walls of the two are attached, so that the support plate is upwardly supported, thereby effectively reducing the stress of the connecting seat, ensuring that the connecting seat stably holds the rotating shaft, improving the stability and precision of the swing of the support plate, and enhancing the work stability of the clamp assembly.

[0008] In the gear machining clamp assembly, the connecting shaft and the corresponding rotating shaft are circumferentially matched through the limiting structure, so that the coaxiality of the rotating shaft and the connecting shaft is enhanced, and the support plate closely follows the rotating shaft to rotate, so that the swing precision of the support plate is effectively enhanced.

[0009] In the gear machining clamp assembly, the limiting structure includes a first plane formed on the side wall of the connecting shaft, the first plane is strip-shaped and extends along the axial direction of the rotating shaft, and a second plane matched with the first plane is formed on the inner wall of the insertion hole, and the first plane and the second plane are in abutment. The above design has the advantages of simple structure and convenient assembly.

[0010] As another solution, in the gear machining clamp assembly, the limiting structure includes a key block fixed on the outer wall of the connecting shaft and a key groove opened on the inner wall of the insertion hole, and the key block is inserted into the key groove. The key groove and the key block cooperate to form a stable and reliable circumferential match between the connecting shaft and the rotating shaft.

[0011] In the gear machining clamp assembly, the insertion hole is a blind hole, and a rubber pad is arranged in the insertion hole, and the two end faces of the rubber pad abut against the corresponding bottom wall of the insertion hole and the corresponding end face of the connecting shaft. The rubber pad uses its elasticity to buffer the gear machining vibration at the support plate, so as to delay the loosening of the bolts and ensure the stable operation of the clamp assembly.

[0012] In the gear machining clamp assembly, the rubber pad is fixed on the corresponding connecting shaft to facilitate assembly.

[0013] In the gear machining clamp assembly, the connecting seat includes a tube body and a positioning block formed on the outer wall of the tube body, the positioning block is pressed on the support plate and the two are fixed by screws; a protrusion is formed on the top wall of the tube body, the opening is arranged on the tube body, the upper side of the opening extends to the protrusion to divide the protrusion into two blocks, threaded holes are formed in the two blocks, and the bolts are screwed into the threaded holes.

[0014] Compared with the prior art, the gear machining clamp assembly has the following advantages:

[0015] 1. The connecting shaft is inserted into the insertion hole and the side walls abut against each other, so that the support plate is upwardly supported, thereby effectively reducing the stress on the connecting seat, ensuring that the connecting seat stably holds the rotating shaft, improving the stability and precision of the support plate swing, and enhancing the working stability of the clamp assembly.

[0016] 2. The connecting shaft and the corresponding rotating shaft are circumferentially matched through the limiting structure, so that the coaxiality of the rotating shaft and the connecting shaft is enhanced, and the support plate closely follows the rotating shaft to rotate, so that the swing precision of the support plate is effectively enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the fixture assembly for gear machining.

[0018] Figure 2 This is a cross-sectional schematic diagram of the fixture assembly for gear machining.

[0019] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 4 This is a structural schematic diagram of the support plate.

[0021] Figure 5 This is a schematic diagram of the connection between the connector and the bolt.

[0022] In the figure, 1 is the frame; 2 is the support plate; 2a is the connecting shaft; 2a1 is the first plane; 3 is the clamp; 4 is the rotating shaft; 4a is the insertion hole; 5 is the connecting seat; 5a is the opening; 5b is the tube; 5c is the positioning block; 5d is the block; 6 is the bolt; and 7 is the rubber pad. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] Example 1: As Figure 1 As shown, this gear machining fixture assembly includes a frame 1 and a horizontally arranged support plate 2. A clamp 3 for horizontally clamping the gear is provided on the upper side of the support plate 2. In the actual product, the support plate 2 is approximately U-shaped, and the clamp 3 is located in the middle of the support plate 2.

[0025] Specifically

[0026] Two rotating shafts 4 are horizontally rotatable on the frame 1, coaxially arranged, with a support plate 2 positioned between them. Both ends of the support plate 2 are fixed with annular, elastic connecting seats 5. The connecting seats 5 are respectively fitted over the two rotating shafts 4. One side of each connecting seat 5 has an opening 5a, and a bolt 6 is installed at the opening 5a to cause the inner wall of the connecting seat 5 to contract inward and tightly grip the corresponding connecting shaft 2a. In this case, the bolt 6 is horizontally positioned, and the axes of the bolt 6 and the rotating shaft 4 are perpendicular. Figure 2 and Figure 3 As shown, each of the two adjacent ends of the rotating shafts 4 has an axially formed insertion hole 4a. Both ends of the support plate 2 have a connecting shaft 2a that matches the insertion hole 4a. The two connecting shafts 2a are respectively inserted into the two insertion holes 4a, and the sidewalls of the connecting shafts 2a are attached to the inner walls of the corresponding insertion holes 4a. Preferably, the connecting shafts 2a and the support plate 2 are an integral structure.

[0027] The connecting shaft 2a is inserted into the insertion hole 4a and the side walls of the two abut, so that the support plate 2 obtains upward support, thereby effectively reducing the stress of the connecting seat 5, ensuring that the connecting seat 5 is tightly held on the rotating shaft 4, improving the stability and precision of the swing of the support plate 2, thereby enhancing the working stability of the clamp 3 assembly.

[0028] Further, the connecting shaft 2a and the corresponding rotating shaft 4 are circumferentially matched through the limiting structure, which can not only enhance the coaxiality of the rotating shaft 4 and the connecting shaft 2a, but also make the support plate 2 more closely follow the rotating shaft 4 to rotate, thereby effectively enhancing the swing precision of the support plate 2.

[0029] In the embodiment,

[0030] As shown in Figure 2 and Figure 4 , the limiting structure includes a first flat surface 2a1 formed on the outer side wall of the connecting shaft 2a, which is strip-shaped and has a length extending along the axial direction of the rotating shaft 4. A second flat surface matching the first flat surface 2a1 is formed on the inner wall of the insertion hole 4a, and the first flat surface 2a1 and the second flat surface abut. The above design has the advantages of simple structure and easy assembly.

[0031] The distal ends of the two rotating shafts 4 are connected to the rack 1 by bearing seats, so that the rotating shafts 4 and the rack 1 are stably rotationally matched.

[0032] As shown in Figure 5 , the connecting seat 5 has the following structure: it includes a tube body 5b and a positioning block 5c formed on the outer wall of the tube body 5b, and the positioning block 5c is pressed on the support plate 2 and fixed by screws. Preferably, the positioning block 5c has two blocks and is distributed on both sides of the tube body 5b to enhance the connection strength of the connecting seat 5 and the support plate 2. A protrusion is formed on the top wall of the tube body 5b, the opening 5a is provided on the tube body 5b, the upper side of the opening 5a extends to the protrusion to divide the protrusion into two blocks 5d, and threaded holes are formed in the two blocks 5d, and the threaded holes are screwed with the above-mentioned bolts 6.

[0033] As shown in Figure 3 , the type of the insertion hole 4a is a blind hole, and a rubber pad 7 is arranged in the insertion hole 4a, and the two end faces of the rubber pad 7 abut against the bottom wall of the corresponding insertion hole 4a and the end face of the corresponding connecting shaft 2a, respectively. The rubber pad 7 uses its elasticity to buffer the gear machining vibration at the support plate 2, so as to delay the loosening of the bolts 6 and ensure that the clamp 3 assembly operates more stably. The rubber pad 7 is fixed on the corresponding connecting shaft 2a to facilitate assembly. Preferably, the rubber pad 7 is adhesively fixed on the corresponding connecting shaft 2a.

[0034] In the embodiment two, the structure and principle are basically same as those of the embodiment one, and the difference is that the limiting structure comprises a key block fixed on the outer wall of the connecting shaft 2a and a key groove formed on the inner wall of the insertion hole 4a, and the key block is inserted into the key groove. The key groove and the key block cooperate, and the stable and reliable circumferential cooperation between the connecting shaft 2a and the rotating shaft 4 can be achieved.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A gear processing fixture assembly, comprising a frame (1) and a horizontally arranged support plate (2), wherein a fixture (3) for horizontally clamping gears is provided on the upper side of the support plate (2), two rotating shafts (4) are horizontally rotatably arranged on the frame (1), the two rotating shafts (4) are coaxially arranged, and the support plate (2) is located between the two rotating shafts (4), and both ends of the support plate (2) are fixed with annular and elastic connecting seats (5), the two connecting seats (5) are respectively sleeved on the two rotating shafts (4), one side of the connecting seat (5) is open (5a), and a bolt (6) is provided at the opening (5a) to make the inner wall of the connecting seat (5) contract inward to hug the corresponding connecting shaft (2a), characterized in that, The two rotating shafts (4) have axially opened insertion holes (4a) at their adjacent ends. Both ends of the support plate (2) have connecting shafts (2a) that match the insertion holes (4a). The two connecting shafts (2a) are inserted into the two insertion holes (4a) respectively, and the side wall of the connecting shaft (2a) is attached to the inner wall of the corresponding insertion hole (4a).

2. The gear machining fixture assembly according to claim 1, characterized in that, The aforementioned connecting shaft (2a) and the corresponding rotating shaft (4) form a circumferential fit through a limiting structure.

3. The gear machining fixture assembly according to claim 2, characterized in that, The limiting structure includes a first plane (2a1) formed on the side wall of the connecting shaft (2a). The first plane (2a1) is strip-shaped and its length extends along the axis of the rotating shaft (4). A second plane matching the first plane (2a1) is formed on the inner wall of the insertion hole (4a), and the first plane (2a1) and the second plane are in contact with each other.

4. The gear machining fixture assembly according to claim 2, characterized in that, The limiting structure includes a key block fixed on the outer wall of the connecting shaft (2a) and a keyway opened on the inner wall of the insertion hole (4a), with the key block inserted into the keyway.

5. The gear machining fixture assembly according to claim 1, characterized in that, The type of socket (4a) is a blind hole. A rubber pad (7) is provided inside the socket (4a), and the two ends of the rubber pad (7) press against the bottom wall of the corresponding socket (4a) and the end face of the corresponding connecting shaft (2a) respectively.

6. The gear machining fixture assembly according to claim 5, characterized in that, The rubber pad (7) is fixed on the corresponding connecting shaft (2a).

7. The gear machining fixture assembly according to claim 1, characterized in that, The connecting seat (5) includes a tube body (5b) and a positioning block (5c) formed on the outer wall of the tube body (5b). The positioning block (5c) is pressed on the support plate (2) and the two are fixed together by screws. A protrusion is formed on the top wall of the tube body (5b). The opening (5a) is provided on the tube body (5b). The upper side of the opening (5a) extends to the protrusion to divide the protrusion into two pieces (5d). Threaded holes are provided through both pieces (5d), and the bolts (6) are screwed into both threaded holes.

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