Gear grinding machine fixing clamp for gear machining

Abstract

A gear grinding machine fixing clamp for gear machining is characterized in that a base is included, a mounting groove is formed in the base, a center column is arranged on the base, a sliding groove is formed in the base, a guide rod is arranged in the sliding groove, a transmission block is arranged on the guide rod, a rotating block is arranged on the transmission block, and a clamping block is arranged in the sliding groove; a limiting block is arranged on the clamping block, an adjusting groove is formed in the clamping block, and a screwing bolt is arranged on the adjusting groove; the rotating block is twisted to drive the transmission block and the guide rod to rotate, so that the clamping blocks move outwards in the sliding groove along the guide rod until the arc-shaped edges of the three clamping blocks abut against the gear, the height of the limiting block is adjusted, the limiting block abuts against the upper edge of the gear, the limiting block is fastened by screwing a bolt to penetrate through the adjusting groove, and fixing of the gear is achieved; the clamp can be adjusted according to the sizes of different gears without using an additional piston rod, so that the cost is saved, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a fixing fixture for a gear grinding machine used in gear processing. Background Technique

[0002] A gear grinding machine is a gear processing machine tool that uses a grinding wheel as a grinding tool to process the tooth surfaces of cylindrical gears or certain gears (helical gears, bevel gears, etc.). It is mainly used to eliminate deformation after heat treatment and improve gear accuracy. In the grinding process of gears, due to the high precision requirements of the gears themselves, the requirements for tooling fixtures are relatively high. Most of the existing fixtures fix the gears through a positioning central shaft, but most fixtures cannot be adjusted according to gears of different sizes, and it is very troublesome to replace parts, increasing the workload of workers.

[0003] There is a fixing fixture for a gear grinding machine CN217393954U, including a base. A groove is provided at the top of the base. A hollow positioning shaft is provided in the groove. A tensioning device and a pushing device are provided on the positioning shaft. The pushing device is connected to the tensioning device. A power device is provided below the base, and the power device is in transmission connection with the pushing device; wherein, the pushing device includes a transmission shaft and a thrust bearing. The transmission shaft slides through the base and its top extends into the positioning shaft. A thrust bearing is provided at the bottom of the transmission shaft. The cross-section of the transmission shaft is set as an ellipse or a polygon. The utility model has the advantages of simple structure, reliable use and low price. It can adjust the fixture according to different gear sizes, reducing the workload of workers.

[0004] However, when the existing fixture is in use, an additional piston rod is required to adjust the fixture, which causes waste of cost and complex structure in actual use. To solve the above problems, a fixing fixture for a gear grinding machine used in gear processing is proposed. Content of the Utility Model

[0005] According to the above existing technical problems, the utility model provides a fixing fixture for a gear grinding machine used in gear processing, which is characterized by including a base, an installation groove, a central column, a sliding groove, a guide rod, a clamping block, a transmission block, a rotating block, a limiting block, an adjustment groove, and a tightening bolt. An installation groove is provided on the base, a central column is provided on the base, a sliding groove is provided on the base, a guide rod is provided in the sliding groove, a transmission block is provided on the guide rod, a rotating block is provided on the transmission block, a clamping block is provided in the sliding groove, a limiting block is provided on the clamping block, an adjustment groove is provided on the clamping block, and a tightening bolt is provided on the adjustment groove.

[0006] Further, the central column is an equilateral triangle, and there is a sliding groove on the outer side of each of the three side edges of the central column. A guide rod is arranged in each sliding groove. One end of the guide rod is connected to the central axis through a bearing, and the other end is connected to the base through a bearing and passes through the base. The surface of the guide rod has threads. A transmission block is fixedly arranged at the end of the guide rod passing through the base, and a rotating block is sleeved on the transmission block;

[0007] Further, there are three clamping blocks, which correspond to the three guide rods one by one. The bottom of the clamping block has a threaded opening. The outer side of the clamping block is an arc surface. There is a through adjustment groove in the middle of the clamping block. The tightening bolt passes through the adjustment groove. The limiting block has a threaded opening. The clamping block and the limiting block are connected by the tightening bolt.

[0008] The beneficial effects of the present utility model:

[0009] By fixing the base of the present utility model, sleeving the gear to be processed on the central column, twisting the rotating block to drive the transmission block and the guide rod to rotate, so that the clamping block moves outwards along the guide rod in the sliding groove until the arc-shaped edges of the three clamping blocks abut against the gear, adjusting the height of the limiting block so that the limiting block abuts against the upper edge of the gear, and fastening the limiting block through the tightening bolt passing through the adjustment groove, the fixation of the gear is realized. While the fixture can be adjusted according to the size of different gears, there is no need to use an additional piston rod to adjust the fixture, which saves costs and has a simple structure. Description of the drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of a fixing fixture for a gear grinding machine of the present utility model;

[0011] Figure 2 It is a schematic diagram of the partial structure of a fixing fixture for a gear grinding machine of the present utility model;

[0012] Figure 3 It is a schematic diagram of the internal structure of a fixing fixture for a gear grinding machine of the present utility model;

[0013] As shown in the figure: 1 base, 2 installation groove, 3 central column, 4 sliding groove, 5 guide rod, 6 clamping block, 7 transmission block, 8 rotating block, 9 limiting block, 10 adjustment groove, 11 tightening bolt. Specific implementation manners

[0014] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Embodiment 1

[0018] The present utility model provides a fixed fixture for a gear grinding machine used in gear processing, which is characterized by comprising a base 1, an installation groove 2, a central column 3, a sliding groove 4, a guide rod 5, a clamping block 6, a transmission block 7, a rotating block 8, a limiting block 9, an adjustment groove 10, and a tightening bolt 11. An installation groove 2 is provided on the base 1, a central column 3 is provided on the base 1, a sliding groove 4 is provided on the base 1, a guide rod 5 is arranged in the sliding groove 4, a transmission block 7 is arranged on the guide rod 5, a rotating block 8 is arranged on the transmission block 7, a clamping block 6 is arranged in the sliding groove 4, a limiting block 9 is arranged on the clamping block 6, an adjustment groove 10 is arranged on the clamping block 6, and a tightening bolt 11 is arranged on the adjustment groove 10.

[0019] Furthermore, the central column 3 is in an equilateral triangle shape. There is a sliding groove 4 on the outer side of each of the three side edges of the central column 3. A guide rod 5 is provided in each sliding groove 4. One end of the guide rod 5 is connected to the central axis through a bearing, and the other end is connected to the base 1 through a bearing and penetrates through the base 1. The surface of the guide rod 5 has threads. A transmission block 7 is fixedly arranged at the end of the guide rod 5 that penetrates through the base 1. A rotating block 8 is sleeved on the transmission block 7.

[0020] Further, there are three clamping blocks 6, which correspond to the three guide rods 5 one by one. The bottom of the clamping block 6 has a threaded opening, the outer side of the clamping block 6 is an arc surface, and there is a through adjustment groove 10 in the middle of the clamping block 6. The tightening bolt 11 passes through the adjustment groove 10, and the limiting block 9 has a threaded opening. The clamping block 6 and the limiting block 9 are connected by the tightening bolt 11.

[0021] Embodiment 2

[0022] During use, there is a limiting portion on the gear grinding machine that extends into the installation groove 2 to fix the base 1. The gear to be processed is sleeved on the central column 3. The rotating block 8 is twisted to drive the transmission block 7 and the guide rod 5 to rotate, so that the clamping block 6 moves outward along the guide rod 5 in the sliding groove 4 until the arc-shaped edges of the three clamping blocks 6 abut against the gear. The height of the limiting block 9 is adjusted so that the limiting block 9 abuts against the upper edge of the gear. The limiting block 9 is fastened by passing the tightening bolt 11 through the adjustment groove 10 to realize the fixation of the gear.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Each component mentioned in the present invention is a common technology in the existing field. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear grinding machine fixing fixture for gear processing, characterized in that: It includes a base, a mounting groove, a center column, a sliding groove, a guide rod, a clamping block, a transmission block, a rotating block, a limit block, an adjustment groove, and a tightening bolt. The base is provided with a mounting groove, the base is provided with a center column, the base is provided with a sliding groove, the sliding groove is provided with a guide rod, the guide rod is provided with a transmission block, the transmission block is provided with a rotating block, the sliding groove is provided with a clamping block, the clamping block is provided with a limit block, the clamping block is provided with an adjustment groove, and the adjusting groove is provided with a tightening bolt.

2. A gear grinding machine fixing fixture for gear machining according to claim 1, characterized in that: The center column is in the shape of an equilateral triangle, and each of the three side edges of the center column has a sliding groove on the outside, and each sliding groove is provided with a guide rod, one end of the guide rod is connected to the center axis bearing, and the other end is connected to the base bearing and passes through the base, and the surface of the guide rod is threaded, and a transmission block is fixedly provided at one end of the guide rod extending out of the base, and a rotating block is sleeved on the transmission block.

3. A gear grinding machine fixing fixture for gear processing according to claim 2, characterized in that: There are three clamping blocks, which correspond to three guide rods one by one. The bottom of the clamping block is provided with a threaded opening, the outer side of the clamping block is an arc surface, the middle part of the clamping block is provided with a through-type adjustment groove, the tightening bolt passes through the adjustment groove, the limit block is provided with a threaded opening, and the clamping block and the limit block are connected by the tightening bolt.

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