Positioning device for spiral bevel gear machining

Abstract

The utility model provides a positioning device for spiral bevel gear processing, including installation subassembly on processing equipment and work piece in installation subassembly, installation subassembly includes positioning cover, spring chuck and connecting head, connecting head's left side is detachably connected with spring chuck, is provided with the installation groove of spring chuck and connecting head plug -in of opening on processing equipment, connecting head's right side is installed in processing equipment, through spring chuck clamping work piece, can realize very high centering accuracy and repeat positioning accuracy, fundamentally guarantee work piece inner hole reference and processing equipment rotation center's coaxial degree, ensure work piece tooth shape processing accuracy and product interchangeability. Its even 360 degree clamping force can effectively prevent work piece deformation, also has the characteristics of clamping fast, rigidity is excellent, greatly promotes production efficiency and surface processing quality, perfect fit modernization automatic production line to precision, efficiency and stability strict requirement, need not artificial alignment.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a positioning device for machining spiral bevel gears. Background Technology

[0002] Spiral bevel gears are divided into two types: one is the spiral bevel gear, where the axes of the large and small gears intersect; the other is the quasi-hyperboloid spiral bevel gear, where the axes of the large and small gears have a certain offset. The world-class companies producing spiral bevel gears are Gleason Systems of the United States and Oerlikon of Switzerland. Spiral bevel gears are widely used in automotive, aerospace, mining, and other mechanical transmission fields due to their advantages such as high overlap coefficient, strong load-bearing capacity, high transmission ratio, smooth transmission, and low noise.

[0003] In the traditional spiral bevel gear manufacturing process, the workpiece is placed in the processing equipment, and the installation distance needs to be measured each time. The operation is cumbersome and inefficient. In addition, the gear blanks are manually aligned, and there are random errors in the positioning of each part, making it impossible to mass-produce interchangeable gears. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device for processing spiral bevel gears, which aims to solve the problems of low accuracy and slow work efficiency caused by manual alignment and installation distance measurement in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the positioning device for machining spiral bevel gears includes a mounting assembly installed on the machining equipment and a workpiece installed within the mounting assembly; The mounting assembly includes a positioning sleeve, a spring clip, and a connector; The left side of the connector is detachably connected to the spring clip; The outer side of the spring collet is slidably connected to the processing equipment via a first bolt. The right side of the positioning sleeve is fitted onto the left side of the spring collet, and the positioning sleeve is fixedly connected to the processing equipment by the second bolt. The workpiece is inserted into the positioning sleeve and spring collet, and the workpiece is also inserted into the connector.

[0006] Preferably, the positioning sleeve includes a frustum block and a disc fixedly connected to the frustum block; The left side of the frustum block has a first circular hole that is open to both sides and allows the workpiece to pass through. The right side of the disk has a second circular groove that opens to the right. The second circular groove is connected to the first circular hole, and the diameter of the second circular groove is larger than the diameter of the first circular hole.

[0007] Preferably, the disk has a plurality of bolt holes arranged in a circumferential array at intervals, and the second bolt passes through the bolt holes and is threadedly connected to the processing equipment.

[0008] Preferably, the spring collet includes a retaining ring, an elastic ring, and a positioning groove extending in the left-right direction; The left side of the fixed ring is fixedly connected to the elastic ring; The positioning groove is formed on the outer wall of the fixing ring, and the opening of the positioning groove faces upward; The first bolt guide is inserted into the positioning groove.

[0009] Preferably, the left side of the elastic ring has a plurality of elastic grooves arranged in a circumferential array with their openings facing left, and the elastic grooves are open to the inside and outside.

[0010] Preferably, the connector includes a mounting block and a connector fixedly connected to the right side of the mounting block; The mounting block has an insertion groove with an opening facing left on its left side. The workpiece is inserted into the insertion groove, and the right end of the workpiece abuts against the inner wall of the insertion groove. The left end of the mounting block is detachably connected to the right end of the fixing ring via a connecting component.

[0011] Preferably, the connecting assembly includes a bolt groove, a bolt hole, and a third bolt; A ring plate is fixed to the right side of the fixing ring, and the bolt grooves are formed on the ring plate. There are several bolt grooves, which are distributed in a circumferential array at intervals. An outer ring plate is fixed to the left side of the mounting block, and the screw holes are formed on the outer ring plate. There are several screw holes, which are distributed in a circumferential array at intervals. The third bolt thread passes through the bolt hole and is threaded into the bolt groove.

[0012] Preferably, the processing equipment includes a top block, a telescopic device, and a main body; The device body has a slot with an opening facing left on the side near the connector. The top block is fixed in the slot. The telescopic device is installed in the device body. The movable section of the telescopic device is detachably connected to the connector. The device body includes a vertical plate and a horizontal plate. The positioning sleeve is threadedly connected to the vertical plate via a second bolt, and the first bolt is threadedly connected to the horizontal plate.

[0013] The beneficial effects are: 1. By using spring collets to hold the workpiece, extremely high centering and repeatability accuracy can be achieved, fundamentally ensuring the coaxiality of the workpiece's inner hole datum and the machining equipment's rotation center, ensuring accurate workpiece tooth profile machining and product interchangeability. Its uniform 360° clamping force effectively prevents workpiece deformation, while also featuring rapid clamping and excellent rigidity, significantly improving production efficiency and surface finish quality. It perfectly meets the stringent requirements of modern automated production lines for precision, efficiency, and stability, eliminating the need for manual alignment.

[0014] 2. By using a positioning sleeve, the workpiece can accurately abut against the side wall reference surface of the positioning sleeve during installation, thereby automatically determining and unifying the installation distance dimension. This structure not only achieves rapid and stable repeatable positioning, but also completely avoids the tedious step of measuring the installation distance one by one in traditional processes. While effectively ensuring assembly accuracy, it significantly improves production efficiency and cycle time consistency. Attached Figure Description

[0015] Figure 1 This is a partial cross-sectional view of the workpiece of this utility model installed in the mounting assembly; Figure 2 This utility model Figure 1 A magnified structural diagram at point A; Figure 3 This is the utility model Figure 1 An enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the positioning sleeve of this utility model; Figure 5 This is a schematic diagram of the structure of the spring clip of this utility model; Figure 6 This is a structural schematic diagram of the connector of this utility model.

[0016] In the diagram: 101, positioning sleeve; 1011, frustum block; 1012, disc; 102, spring collet; 1021, fixing ring; 1022, elastic ring; 1023, positioning groove; 103, connector; 1031, mounting block; 1032, joint; 2, first bolt; 3, second bolt; 401, top block; 402, equipment body; 5, workpiece; 6, first circular hole; 7, second circular groove; 8, bolt hole; 9, elastic groove; 10, embedding groove; 11, connecting assembly; 1101, bolt groove; 1102, screw hole; 1103, third bolt; 12, ring plate; 13, outer ring plate. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0018] A positioning device for machining spiral bevel gears is mainly used to install the mounting component inside the machining equipment, and then install the workpiece 5 inside the mounting component to ensure the coaxiality of the inner hole datum of the workpiece 5 with the rotation center of the machining equipment, thereby improving machining accuracy. The mounting component can position and clamp the workpiece 5 to prevent the workpiece 5 from shifting or shaking during the machining process.

[0019] In this embodiment, Figure 1 Centered on the , it is divided into top, bottom, left, and right.

[0020] In this embodiment, the positioning device for machining spiral bevel gears includes a mounting assembly installed on the machining equipment and a workpiece 5 installed in the mounting assembly. The mounting assembly is first installed in the machining equipment, and then the workpiece 5 is installed in the mounting assembly to achieve positioning of the workpiece 5.

[0021] The processing equipment includes a top block 401, a telescopic device, and a main body 402. The main body 402 has a slot with an opening facing left on the side near the connector 103. The top block 401 is fixed inside the slot, and the telescopic device is installed inside the main body 402. In this embodiment, the processing equipment is a CNC spiral bevel gear milling machine or a gear grinding machine. The structure and principle of the CNC spiral bevel gear milling machine or gear grinding machine are existing technologies and will not be described in detail here. like Figures 1-6 As shown, the mounting assembly includes a positioning sleeve 101, a spring collet 102, and a connector 103. The positioning sleeve 101, the spring collet 102, and the connector 103 are first spliced ​​together to form the mounting assembly, so that the mounting assembly can be installed in the processing equipment.

[0022] Specifically, the left side of the connector 103 is detachably connected to the spring collet 102. The processing equipment has an installation slot for the connector 103 and the spring collet 102 to be inserted into. The right side of the connector 103 is installed in the slot, and the connector 103 is threadedly connected to the telescopic device to achieve the installation of the connector 103. The outer side of the spring collet 102 is slidably connected to the processing equipment via a first bolt 2. In this embodiment, the first bolt 2 allows the installation assembly to be inserted into the outer side of the spring collet 102 during installation, enabling the spring collet 102 to move. Furthermore, the first bolt 2 can also be used to secure the spring collet. The head 102 serves a positioning function. The right side of the positioning sleeve 101 is fitted onto the left side of the spring collet 102, and the positioning sleeve 101 is relatively fixedly connected to the processing equipment by the second bolt 3 to achieve a relatively fixed connection between the mounting component and the processing equipment. The workpiece 5 passes through the positioning sleeve 101 and the spring collet 102, and is inserted into the connector 103 so that the spring collet 102 can position and clamp the workpiece 5. After the workpiece 5 is inserted into the positioning sleeve 101, the side of the workpiece 5 closest to the positioning sleeve 101 abuts against the positioning sleeve 101, so that the length of the positioning sleeve 101 is the installation distance, eliminating the need for workers to measure each time and improving work efficiency.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the positioning sleeve 101 can be fixedly connected to the processing equipment, so that the spring collet 102 and the connector 103 can be installed inside the processing equipment.

[0024] Specifically, the positioning sleeve 101 includes a frustum block 1011 and a disc 1012 fixedly connected to the frustum block 1011; the left side of the frustum block 1011 has a first circular hole 6 that is open to the left and right and allows the workpiece 5 to pass through; the right side of the disc 1012 has a second circular groove 7 with its opening facing right. The second circular groove 7 is connected to the first circular hole 6, and the size of the second circular groove 7 is larger than the size of the first circular hole 6, so that when the workpiece 5 passes through the first circular hole 6, the right side wall of the workpiece 5 abuts against the frustum block 1011.

[0025] The disc 1012 has several bolt holes 8 arranged in a circumferential array. The second bolt 3 passes through the bolt holes 8 and is threaded to the processing equipment so that the disc 1012 is fixedly connected to the processing equipment.

[0026] like Figure 1 , Figure 3 and Figure 5 As shown, the spring collet 102 can position and clamp the workpiece 5, so that the workpiece 5 will not tilt or shift during the processing.

[0027] Specifically, the spring collet 102 includes a fixed ring 1021, an elastic ring 1022, and a positioning groove 1023 extending in the left-right direction; the left side of the fixed ring 1021 is fixedly connected to the elastic ring 1022; the positioning groove 1023 is formed on the outer side wall of the fixed ring 1021, and the opening of the positioning groove 1023 extends upward to the right end of the fixed ring 1021; the first bolt 2 is inserted into the positioning groove 1023 to position the spring collet 102, so that the spring collet 102 can move normally.

[0028] The left side of the elastic ring 1022 has several elastic grooves 9 arranged in a circumferential array with their openings facing left. The elastic grooves 9 are open inside and out, so that when the workpiece 5 passes through the fixed ring 1021 and the elastic ring 1022, the uniform radial contraction force of the elastic ring 1022 will be used to firmly hold the workpiece 5 through the precision reference (usually the inner hole) and ensure that it is concentric with the spindle of the processing equipment.

[0029] like Figure 1 , Figure 3 and Figure 6 As shown, the left side of the connector 103 is detachably connected to the spring collet 102, so that the connector 103 can be connected to different spring collets 102, and the mounting assembly can be adjusted according to the workpiece 5, thereby improving the applicability of the mounting assembly.

[0030] Specifically, the connector 103 includes a mounting block 1031 and a connector 1032 fixedly connected to the right side of the mounting block 1031; the mounting block 1031 has an insert groove 10 with its opening facing left on its left side. In this embodiment, the insert groove 10 is cylindrical and its sidewall is conical. In other embodiments, the insert groove 10 can be a cylindrical groove. The workpiece 5 is inserted into the insert groove 10, and the right end of the workpiece 5 abuts against the inner wall of the insert groove 10; the left end of the mounting block 1031 and the right end of the fixing ring 1021 are detachably connected by a connecting assembly 11 so that the mounting assembly can adapt to workpieces 5 of different lengths.

[0031] The connecting assembly 11 includes bolt grooves 1101, screw holes 1102, and a third bolt 1103; a ring plate 12 is fixed to the right side of the fixing ring 1021, and bolt grooves 1101 are formed on the ring plate 12, with several bolt grooves 1101 arranged in a circumferential array at intervals; an outer ring plate 13 is fixed to the left side of the mounting block 1031, and screw holes 1102 are formed on the outer ring plate 13, with several screw holes 1102 arranged in a circumferential array at intervals, when the outer ring plate 13 is fastened to the ring plate. After step 12, the screw hole 1102 and the bolt groove 1101 correspond to each other. Then, the third bolt 1103 is threaded through the screw hole 1102 and threaded into the bolt groove 1101 to fix the mounting block 1031 and the retaining ring 1021 relatively. If replacement is required, the third bolt 1103 can be removed, and then the spring collet 102 can be replaced. Then, the above operation is repeated to fix the mounting block 1031 and the retaining ring 1021 relatively.

[0032] Working principle: In use, first connect the mounting block 1031 and the fixing ring 1021 with the third bolt 1103. Then, place the right side of the positioning sleeve 101 onto the left side of the elastic ring 1022. After the mounting assembly is installed, it can be installed in the processing equipment. Using tools such as a dial indicator, carefully calibrate the rotation center of the mounting assembly and the spindle of the equipment body 402 to ensure that their coaxiality reaches extremely high precision. Then, the worker or robot places the workpiece 5 into the mounting assembly already installed on the processing equipment, using its precision-machined inner hole and one end face as a reference. The end face of the workpiece 5 will be close to the positioning sleeve 101. This positioning sleeve 101 determines the "installation distance" of the workpiece 5. The end of the connector 1032 away from the spring collet 102 has an internal thread or a pull hole. The telescopic device passes through the equipment body 402, and the movable end of the telescopic device is screwed into the thread of the connector 1032. When the telescopic device operates, it pulls the connector 103 backward, forcefully drawing the spring collet 102 into the slot of the device body 402. Due to the action of the top block 401, this axial tension is converted into a large radial contraction force, causing the spring collet 102 to grip the workpiece 5. When the telescopic device moves in the opposite direction, it pushes forward, ejecting the spring collet 102 from the slot. The spring collet 102 then recovers its elasticity and opens, releasing the workpiece 5.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning device for machining spiral bevel gears, characterized in that, This includes the mounting assembly installed on the processing equipment and the workpiece installed within the mounting assembly (5); The mounting assembly includes a positioning sleeve (101), a spring clip (102), and a connector (103). The left side of the connector (103) is detachably connected to the spring clip (102); The outer side of the spring collet (102) is slidably connected to the processing equipment via the first bolt (2); The right side of the positioning sleeve (101) is fitted onto the left side of the spring collet (102), and the positioning sleeve (101) is fixedly connected to the processing equipment by the second bolt (3); The workpiece (5) is inserted into the positioning sleeve (101) and the spring collet (102), and the workpiece (5) is inserted into the connector (103).

2. The positioning device for machining spiral bevel gears according to claim 1, characterized in that, The positioning sleeve (101) includes a frustum block (1011) and a disc (1012) fixedly connected to the frustum block (1011). The left side of the frustum block (1011) has a first circular hole (6) that is open to both sides and allows the workpiece (5) to pass through. The right side of the disc (1012) has a second circular groove (7) with its opening facing right. The second circular groove (7) is connected to the first circular hole (6), and the diameter of the second circular groove (7) is larger than the diameter of the first circular hole (6).

3. The positioning device for machining spiral bevel gears according to claim 2, characterized in that, The disc (1012) has a plurality of bolt holes (8) arranged in a circumferential array, and the second bolt (3) passes through the bolt holes (8) and is threadedly connected to the processing equipment.

4. The positioning device for machining spiral bevel gears according to claim 1, characterized in that, The spring collet (102) includes a retaining ring (1021), an elastic ring (1022), and a positioning groove (1023) extending in the left-right direction. The left side of the fixed ring (1021) is fixedly connected to the elastic ring (1022); The positioning groove (1023) is formed on the outer wall of the fixing ring (1021), and the opening of the positioning groove (1023) faces upward; The first bolt (2) is guided and inserted into the positioning groove (1023).

5. A positioning device for machining spiral bevel gears according to claim 4, characterized in that, The elastic ring (1022) has several elastic grooves (9) arranged in a circular array with their openings facing left on the left side. The elastic grooves (9) are open to the inside and outside.

6. A positioning device for machining spiral bevel gears according to claim 4, characterized in that, The connector (103) includes a mounting block (1031) and a connector (1032) fixedly connected to the right side of the mounting block (1031). The mounting block (1031) has an embedding groove (10) with its opening facing left on the left side. The workpiece (5) is inserted into the embedding groove (10), and the right end of the workpiece (5) abuts against the inner wall of the embedding groove (10). The left end of the mounting block (1031) is detachably connected to the right end of the fixing ring (1021) via a connecting component (11).

7. A positioning device for machining spiral bevel gears according to claim 6, characterized in that, The connecting assembly (11) includes a bolt groove (1101), a bolt hole (1102), and a third bolt (1103). A ring plate (12) is fixed to the right side of the fixing ring (1021), and the bolt groove (1101) is opened on the ring plate (12). There are several bolt grooves (1101) and they are distributed in a circumferential array at intervals. An outer ring plate (13) is fixed on the left side of the mounting block (1031), and the screw holes (1102) are opened on the outer ring plate (13). There are several screw holes (1102) and they are distributed in a circular array at intervals. The third bolt (1103) is threaded through the bolt hole (1102) and threadedly connected to the bolt groove (1101).

8. A positioning device for machining spiral bevel gears according to claim 6, characterized in that, The processing equipment includes a top block (401), a telescopic device, and a main body (402). The device body (402) has a slot with an opening facing left on the side near the connector (103). The top block (401) is fixed in the slot and is cone-shaped. The telescopic device is installed in the device body (402) and the movable section of the telescopic device is detachably connected to the connector (103). The device body (402) includes a body vertical plate and a body horizontal plate. The positioning sleeve (101) is threadedly connected to the body vertical plate by a second bolt (3), and the first bolt (2) is threadedly connected to the body horizontal plate.

Images