A helical gear clamping fixture

Abstract

This utility model discloses a helical gear clamping fixture, including a mounting base. The mounting base has a clamping structure for pressing and fixing, and a positioning structure for precise positioning. The clamping structure includes two sets of left and right support seats fixedly mounted on the mounting base. Two sets of motors are fixedly mounted on the left and right sides of the mounting base, with the motor shafts rotating through the support seats. A rotating seat is fixedly mounted at the front end of the motor shaft, and a hydraulic cylinder is fixedly mounted at the front end of the rotating seat. A pressing seat is fixedly mounted at the front end of the hydraulic cylinder, and a limiting seat is wrapped around the front outer wall of the hydraulic cylinder. Four sets of limiting sliding pins are vertically fixed on the rear side of the pressing seat and slide through the limiting seats. This utility model belongs to the technical field of clamping equipment, specifically a helical gear clamping fixture, which effectively solves the problems of difficult precise positioning and uncontrollable clamping force in helical gear clamping fixtures.

Description

Technical Field

[0001] This utility model belongs to the field of clamping equipment technology, specifically referring to a helical gear clamping fixture. Background Technology

[0002] Helical gears are not entirely the same as spiral gears. Rather, a spiral gear is a meshing method of two helical gears, distinguished by the different directions in which they transmit force in space. Ordinary spur gears engage simultaneously along their tooth width, resulting in impact vibration, noise, and uneven transmission. Helical gear transmissions are superior to spur gears and can be made more compact, allowing for high-speed, heavy-load applications.

[0003] In the machining and inspection of helical gears, clamping fixtures are required to fix them in place. Current helical gear clamping fixtures on the market have several shortcomings: due to the helix angle of helical gears, precise positioning is often difficult to achieve, leading to significant errors during machining or inspection; the clamping force is difficult to control—either too weak a force causes displacement of the helical gear during machining or inspection, affecting accuracy, or too strong a force causes damage to the surface of the helical gear. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model proposes a helical gear clamping fixture, which effectively solves the problems of helical gear clamping fixtures being difficult to achieve precise positioning and clamping force being difficult to control.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a helical gear clamping fixture, including a mounting base. The mounting base is provided with a clamping structure for pressing and fixing. The clamping structure is provided with a positioning structure for precise positioning. The clamping structure includes two sets of left and right support seats fixed on the mounting base. Two sets of motors are fixed on the left and right sides of the mounting base, and the motor shafts are rotatably arranged through the support seats. A rotating seat is fixed at the front end of the motor shaft. A hydraulic cylinder is fixed at the front end of the rotating seat. A pressing seat is fixed at the front end of the hydraulic cylinder. A limiting seat is wrapped on the outer wall of the front part of the hydraulic cylinder. Four sets of limiting sliding pins are vertically fixed on the rear side of the pressing seat and are slidably arranged through the limiting seat.

[0006] Preferably, the positioning structure includes a clamping seat 1 fixedly disposed on the left limiting seat and a clamping seat 2 fixedly disposed on the right limiting seat. A limiting pin is fixedly disposed at the front end of the clamping seat 1 and an anti-slip pad 1 is attached to the front side of the clamping seat 1. A positioning shaft is fixedly disposed at the front end of the clamping seat 2 and an anti-slip pad 2 is attached to the front side of the clamping seat 2.

[0007] To achieve a better anti-slip effect, the first and second anti-slip pads are made of rubber material and have anti-slip patterns engraved on their surfaces.

[0008] To achieve the purpose of matching the helix angle, the motor is equipped with two sets, left and right, that rotate synchronously.

[0009] Furthermore, the positioning shaft is provided with a groove with the same width as the limiting pin, and the thickness of the limiting pin is higher than the outer edge of the positioning shaft, for connecting the helical gear and fixing it to the positioning shaft.

[0010] To achieve stable positioning, the positioning shaft is provided with two sets of grooves and two sets of matching limit pins.

[0011] The beneficial effects of this utility model using the above structure are as follows: This solution proposes a helical gear clamping fixture. By inserting clamping seat one and positioning shaft into the helical gear shaft hole for limiting and precise positioning, the helical gear is clamped on both sides by clamping seat two and clamping seat one. The use of anti-slip pad one and anti-slip pad two improves clamping stability and avoids damage to the helical gear surface. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a helical gear clamping fixture proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of another perspective of the helical gear clamping fixture proposed in this utility model;

[0014] Figure 3 This is a cross-sectional structural diagram of a helical gear clamping fixture proposed in this utility model;

[0015] Figure 4 This is another cross-sectional structural diagram of a helical gear clamping fixture proposed in this utility model.

[0016] Among them, 1. mounting base, 2. clamping structure, 3. positioning structure, 4. support base, 5. motor, 6. rotating base, 7. hydraulic cylinder, 8. pressing base, 9. limiting base, 10. limiting slide column, 11. clamping base one, 12. limiting pin, 13. anti-slip pad one, 14. clamping base two, 15. positioning shaft, 16. anti-slip pad two.

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, the present invention proposes a helical gear clamping fixture, including a mounting base 1, a clamping structure 2 for pressing and fixing, and a positioning structure 3 for precise positioning. The clamping structure 2 includes two sets of left and right support seats 4 fixedly mounted on the mounting base 1. Two sets of motors 5 are fixedly mounted on the left and right sides of the mounting base 1, and the rotating shafts of the motors 5 pass through the support seats 4 for rotation. The motors 5 have two sets and rotate synchronously. A rotating seat 6 is fixedly mounted at the front end of the rotating shaft of the motors 5. A hydraulic cylinder 7 is fixedly mounted at the front end of the rotating seat 6. A pressing seat 8 is fixedly mounted at the front end of the hydraulic cylinder 7. A limiting seat 9 is wrapped on the outer wall of the front part of the hydraulic cylinder 7. Four sets of limiting sliding pins 10 are vertically fixed on the rear side of the pressing seat 8 and slide through the limiting seat 9 for limiting.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the positioning structure 3 includes a clamping seat 11 fixedly mounted on the left limiting seat 9 and a clamping seat 2 14 fixedly mounted on the right limiting seat 9. A limiting pin 12 is fixedly mounted at the front end of the clamping seat 11, and an anti-slip pad 13 is attached to the front side of the clamping seat 11. A positioning shaft 15 is fixedly mounted at the front end of the clamping seat 2 14. The positioning shaft 15 has a groove with the same width as the limiting pin 12, and the thickness of the limiting pin 12 is higher than the outer edge of the positioning shaft 15. It is used to connect the helical gear and fix it to the positioning shaft 15. The positioning shaft 15 has two sets of grooves and two sets of matching limiting pins 12. An anti-slip pad 2 16 is attached to the front side of the clamping seat 2 14. The anti-slip pad 13 and the anti-slip pad 2 16 are made of rubber material and have anti-slip textures engraved on their surfaces.

[0021] In practical use, first place the helical gear between the limiting pin 12 and the positioning shaft 15, align the helical gear limiting groove with the positioning shaft 15, and then control the two sets of hydraulic cylinders 7 to synchronously push the limiting seat 9 to move inward to clamp. At this time, the positioning shaft 15 at the front end of the limiting seat 9 is inserted into the helical gear, and at the same time, the limiting pin 12 at the front end of the other set of limiting seats 9 is inserted between the helical gear limiting groove and the groove on the positioning shaft 15. Thus, the limiting pin 12 stably fixes the positioning shaft 15 and the helical gear, preventing displacement due to rotation. At the same time, the anti-slip pad 13 on the clamping seat 11 and the positioning shaft 15 on the clamping seat 2 are stably clamped to both sides of the helical gear, thereby achieving precise clamping and avoiding damage to the helical gear.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A helical gear clamping fixture comprising a mounting base (1), characterized in that: It also includes a clamping structure (2) on the mounting base (1) for pressing and fixing, and a positioning structure (3) on the clamping structure (2) for precise positioning. The clamping structure (2) includes two sets of left and right support seats (4) fixed on the mounting base (1). Two sets of motors (5) are fixed on the left and right sides of the mounting base (1) and the rotating shaft of the motor (5) passes through the support seat (4) and rotates. A rotating seat (6) is fixed at the front end of the rotating shaft of the motor (5). A hydraulic cylinder (7) is fixed at the front end of the rotating seat (6). An extrusion seat (8) is fixed at the front end of the hydraulic cylinder (7). A limiting seat (9) is wrapped on the front outer wall of the hydraulic cylinder (7). Four sets of limiting sliding columns (10) are vertically fixed on the rear side of the extrusion seat (8) and slide through the limiting seat (9). The positioning structure (3) includes a clamping seat one (11) fixed on the left limiting seat (9) and a clamping seat two (14) fixed on the right limiting seat (9). The clamping seat one (11) has a limiting pin (12) fixed at its front end. The clamping seat one (11) has an anti-slip pad one (13) attached to its front side. The clamping seat two (14) has a positioning shaft (15) fixed at its front end. The clamping seat two (14) has an anti-slip pad two (16) attached to its front side.

2. A helical gear clamping fixture according to claim 1, wherein: The anti-slip pad one (13) and anti-slip pad two (16) are made of rubber material and have anti-slip patterns engraved on their surfaces.

3. A helical gear clamping fixture according to claim 2, wherein: The motor (5) has two sets, left and right, that rotate synchronously.

4. A helical gear clamping fixture according to claim 3, wherein: The positioning shaft (15) is provided with a groove with the same width as the limiting pin (12) and the thickness of the limiting pin (12) is higher than the outer edge of the positioning shaft (15), which is used to connect the helical gear and fix the positioning shaft (15).

5. A helical gear clamping fixture according to claim 4, wherein: The positioning shaft (15) is provided with two sets of upper and lower grooves and two sets of matching limit pins (12).

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