Fixing clamp for machining external tooth locking washer

Abstract

The utility model relates to the technical field of machining of external tooth locking washers, in particular to a fixing clamp for machining of external tooth locking washers, which comprises a casing, three mounting seats are slidably connected onto the casing and are distributed in a circumferential array manner relative to the circle center of the casing, and clamping jaws are mounted on the mounting seats through fixing structures. Grooves are formed in the clamping jaws, the same gasket body is clamped in the three grooves, the bottom ends of the clamping jaws are fixedly connected with inserting blocks, the inserting blocks are connected with the mounting base in an inserted mode, clamping blocks are slidably connected into the mounting base, clamping grooves are formed in the inserting blocks, and the ends of the clamping blocks are clamped with the clamping grooves. The three clamping jaws are synchronously driven through the plane thread disc, so that the clamping force of the three clamping jaws is uniformly distributed on the inner wall of the gasket, the deformation risk of the gasket is reduced, the clamping jaws of the corresponding sizes can be rapidly replaced according to gaskets of different sizes through cooperation of the clamping blocks and the insertion blocks on the mounting base, and the applicability of the clamp is better.

Description

Technical Field

[0001] This utility model relates to a fixing fixture, specifically a fixing fixture for processing external tooth locking washers, belonging to the field of external tooth locking washer processing technology. Background Technology

[0002] Toothed locking washers are a type of washer used in mechanical connections to lock and prevent loosening. External toothed locking washers are widely used in various mechanical connection applications, such as automobile manufacturing, aerospace, and machining. In mining machinery, construction machinery, and other equipment, larger external toothed locking washers are often required to connect and fasten large components, such as the critical connection between the boom, stick, and slewing platform of an excavator. When machining external toothed locking washers, a fixing fixture is required to secure them.

[0003] However, traditional clamps often use single-point or double-point clamping (such as single-sided screw drive). Large-sized washers are prone to local stress concentration when clamped, which can easily lead to external tooth profile deviation or overall warping of the washer. In addition, the jaws of traditional clamps are usually fixedly connected to the clamp body. When changing large washers with different inner diameters, the entire clamp needs to be disassembled, resulting in poor applicability of the clamp. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing fixture for processing external toothed locking washers in order to solve the above-mentioned problems. The fixture synchronously drives three jaws through a flat threaded disc, so that the clamping force of the three jaws is evenly distributed on the inner wall of the washer, thereby reducing the risk of deformation of the washer. Furthermore, the jaws of the corresponding size can be quickly replaced according to the size of the washer by the cooperation of the locking block and the insertion block on the mounting base, thus improving the applicability of the fixture.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a fixing fixture for processing external tooth locking washers includes a housing, a driving structure mounted on the housing, the driving structure including a mounting base, three mounting bases slidably connected to the housing, the three mounting bases being arranged in a circumferential array about the center of the housing, a pawl mounted on the mounting base by a fixing structure, the pawl having a groove, the same washer body engaging in the three grooves, the fixing structure including an insert block, the bottom end of the pawl being fixedly connected to the insert block, the insert block being inserted into the mounting base, a locking block slidably connected inside the mounting base, the insert block having a locking groove, the end of the locking block engaging with the locking groove.

[0006] Preferably, the claw abuts against the inner wall of the washer body, and the claw is provided with an inclined surface.

[0007] Preferably, the overall cross-section of the card block is L-shaped, and the ends of the card block are inclined.

[0008] Preferably, a stop block is fixedly connected to the card block, and a guide rod is fixedly connected inside the mounting base, with the stop block and the guide rod being slidably connected.

[0009] Preferably, a spring is sleeved on the outside of the guide rod, one end of the spring is fixedly connected to the stop block, and the other end of the spring is fixedly connected to the mounting base.

[0010] Preferably, a motor is mounted on the housing, a rotating rod is fixedly connected to the output shaft of the motor, a drive bevel gear is fixedly connected to the end of the rotating rod, the drive bevel gear is rotatably connected to the housing, a flat threaded disc is rotatably connected to the housing, the drive bevel gear meshes with the bottom of the flat threaded disc, and the top of the flat threaded disc meshes with the mounting base.

[0011] Preferably, the mounting base has an "I" shaped cross-section and a serrated bottom end.

[0012] Preferably, two driven bevel gears are rotatably connected inside the housing. Both driven bevel gears mesh with a planar threaded disc, and the two driven bevel gears and the driving bevel gear are arranged in a circumferential array.

[0013] Preferably, the cross-section of the rotating rod is rectangular, and the two driven bevel gears and the driving bevel gear are arranged in a circular array about the center of the planar threaded disk.

[0014] The beneficial effects of this utility model are as follows: Three mounting seats are slidably connected to the housing, and the three mounting seats are arranged in a circular array about the center of the housing. Each mounting seat has a clamping claw installed via a fixed structure. The clamping claw has a groove, and the same washer body is engaged within each of the three grooves. A plug is fixedly connected to the bottom end of each clamping claw, and the plug is inserted into the mounting seat. A locking block is slidably connected within the mounting seat, and the plug has a locking groove. The end of the locking block engages with the locking groove. The three clamping claws are synchronously driven by a planar threaded disc, ensuring that the clamping force of the three clamping claws is evenly distributed on the inner wall of the washer, thereby reducing the risk of washer deformation. Simultaneously, the grooves on the clamping claws can position the washer, further increasing the stability of the fixture in fixing the washer. Furthermore, the cooperation between the locking block and the plug on the mounting seat allows for quick replacement of clamping claws of different sizes according to the size of the washer, thus improving the applicability of the fixture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the bevel gear and the planar threaded disk of this utility model;

[0017] Figure 3 for Figure 2The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 4 This is a schematic diagram of the connection structure between the planar threaded disc and the mounting base of this utility model.

[0019] In the diagram: 1. Housing; 2. Drive structure; 201. Motor; 202. Rotating rod; 203. Drive bevel gear; 204. Flat threaded disc; 205. Mounting base; 206. Driven bevel gear; 3. Fixing structure; 301. Insert block; 302. Locking block; 303. Locking groove; 304. Stop block; 305. Guide rod; 306. Spring; 4. Claw; 5. Groove; 6. Washer body; 7. Inclined surface. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this utility model. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Please see Figures 1-4As shown, a fixing fixture for processing external toothed locking washers includes a housing 1. A driving structure 2 is mounted on the housing 1. The driving structure 2 includes a mounting base 205. Three mounting bases 205 are slidably connected to the housing 1. The three mounting bases 205 are arranged in a circular array about the center of the housing 1. A pawl 4 is mounted on the mounting base 205 through a fixing structure 3. The pawl 4 has a groove 5. The same washer body 6 is engaged in the three grooves 5. The fixing structure 3 includes an insert block 301. The bottom end of the pawl 4 is fixedly connected to the insert block 301. The insert block 301 is inserted into the mounting base 205. A locking block 302 is slidably connected in the mounting base 205. The insert block 301 has a locking groove 303. The end of the locking block 302 engages with the locking groove 303.

[0023] As a technical optimization of this utility model, the claw 4 abuts against the inner wall of the washer body 6, and the claw 4 is provided with an inclined surface 7; the washer body 6 is simultaneously fitted onto the outside of the three claws 4, and the inclined surface 7 on the claw 4 has a guiding effect on the washer body 6, making it more convenient to fit the washer body 6.

[0024] As a technical optimization of this utility model, the overall cross-section of the locking block 302 is L-shaped, and the end of the locking block 302 is inclined. A stop block 304 is fixedly connected to the locking block 302, and a guide rod 305 is fixedly connected inside the mounting base 205. The stop block 304 and the guide rod 305 are slidably connected. A spring 306 is sleeved on the outside of the guide rod 305. One end of the spring 306 is fixedly connected to the stop block 304, and the other end of the spring 306 is fixedly connected to the mounting base 205. When it is necessary to fix gasket bodies 6 of different thicknesses, gaskets with different heights can be replaced. During installation, the insert block 301 at the bottom of the claw 4 is inserted into the mounting base 205. During the insertion process, the insert block 301 slides against the claw block 302 into the mounting base 205. The sliding of the claw block 302 simultaneously drives the stop block 304 to slide, thereby causing the stop block 304 to drive the spring 306 to retract. When the slot 303 on the insert block 301 is aligned with the claw block 302, the spring 306 resets and drives the end of the claw block 302 to engage in the slot 303, thereby quickly installing the claw 4 on the mounting base 205, making the installation and removal of the claw 4 more convenient, and thus facilitating the fixing of gasket bodies 6 of different thicknesses.

[0025] As a technical optimization of this utility model, a motor 201 is installed on the housing 1. The output shaft of the motor 201 is fixedly connected to a rotating rod 202. A driving bevel gear 203 is fixedly connected to the end of the rotating rod 202. The driving bevel gear 203 is rotatably connected to the housing 1. A flat threaded disk 204 is rotatably connected to the housing 1. The driving bevel gear 203 meshes with the bottom of the flat threaded disk 204. The top of the flat threaded disk 204 meshes with a mounting base 205. The mounting base 205 has an "I"-shaped cross-section and a serrated bottom. The rotating rod 202 has a rectangular cross-section. The two driven bevel gears 206 and the driving bevel gear 203 are arranged in a circular array about the center of the flat threaded disk 204. When the motor 201 is turned on, the output shaft of the motor 201 drives the rotating rod 202. 2. Rotation of the rotating rod 202 simultaneously drives the bevel gear 203 to rotate. The rotating bevel gear 203 meshes with the flat threaded disc 204, and the two driven bevel gears 206 cooperate with the driving bevel gear 203 to make the flat threaded disc 204 rotate on the housing 1. When the flat threaded disc 204 rotates, its top end meshes with the mounting seat 205, causing the mounting seat 205 to slide on the housing 1. The three mounting seats 205 are arranged in a circumferential array about the center of the housing 1. The rotation of the flat threaded disc 204 will cause the three mounting seats 205 to slide synchronously away from the center of the housing 1, thereby driving the chuck 4 to open outwards. This allows the chuck 4 to press against the inner wall of the washer body 6. The groove 5 prevents the washer body 6 from sliding vertically, further increasing the stability of the three chuck 4 in clamping and fixing the washer body 6, thus facilitating the processing of the washer body 6.

[0026] As a technical optimization of this utility model, two driven bevel gears 206 are rotatably connected inside the housing 1. Both driven bevel gears 206 mesh with the planar threaded disk 204. The two driven bevel gears 206 and the driving bevel gear 203 are arranged in a circumferential array. The two driven bevel gears 206 cooperate with the driving bevel gear 203 to drive the planar threaded disk 204 to rotate, so that the planar threaded disk 204 is subjected to more uniform force, thereby making the movement of the planar threaded disk 204 more stable.

[0027] In use, when it is necessary to fix gasket bodies 6 of different thicknesses, the claws 4 with grooves 5 of different heights can be replaced. During installation, the insert 301 at the bottom of the claw 4 is inserted into the mounting base 205. During insertion, the insert 301 slides against the locking block 302 into the mounting base 205. The sliding of the locking block 302 simultaneously drives the stop block 304 to slide, thereby causing the stop block 304 to drive the spring 306 to retract. When the slot 303 on the insert 301 aligns with the locking block 302, the spring 306 resets and drives the end of the locking block 302 to engage in the slot 303, thus quickly installing the claw 4 on the mounting base 205, making the installation and removal of the claw 4 more convenient, and thus facilitating the fixing of gasket bodies 6 of different thicknesses. Next, the gasket body 6 is simultaneously fitted onto the outside of the three claws 4. The inclined surface 7 on the claw 4 guides the gasket body 6, making it easier to fit the gasket body 6. Then, open... Motor 201, the output shaft of motor 201 drives rotating rod 202 to rotate. Rotating rod 202 simultaneously drives bevel gear 203 to rotate. Driving bevel gear 203 rotates and simultaneously meshes with and transmits power to flat threaded disc 204. Two driven bevel gears 206 cooperate with driving bevel gear 203 to make flat threaded disc 204 rotate on housing 1. When flat threaded disc 204 rotates, its top end meshes with mounting base 205, causing mounting base 205 to slide on housing 1. The three mounting bases 205 are arranged in a circumferential array about the center of housing 1. The rotation of flat threaded disc 204 will cause the three mounting bases 205 to slide synchronously away from the center of housing 1, thereby driving the chuck 4 to open outwards. This causes the chuck 4 to press against the inner wall of washer body 6. The groove 5 can prevent the washer body 6 from sliding vertically, further increasing the stability of the three chuck 4 in clamping and fixing the washer body 6, thus facilitating the processing of washer body 6.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fixing jig for machining of an external toothed locking washer, comprising a housing (1), characterized in that: The shell (1) is provided with a driving structure (2), the driving structure (2) comprises a mounting seat (205), three mounting seats (205) are slidably connected to the shell (1), the three mounting seats (205) are arranged in a circular array about the center of the shell (1), a clamping jaw (4) is mounted on the mounting seat (205) by a fixing structure (3), a groove (5) is formed in the clamping jaw (4), a same gasket body (6) is clamped in the three grooves (5), the fixing structure (3) comprises an insertion block (301), the bottom end of the clamping jaw (4) is fixedly connected with the insertion block (301), the insertion block (301) is inserted into the mounting seat (205), a clamping block (302) is slidably connected in the mounting seat (205), a clamping groove (303) is formed in the insertion block (301), and the end of the clamping block (302) is clamped in the clamping groove (303).

2. The fixing clamp for machining outer toothing locking washer according to claim 1, characterized in that: The clamping jaw (4) is in contact with the inner wall of the gasket body (6), and the clamping jaw (4) is provided with an inclined surface (7).

3. The fixing clamp for machining outer toothing locking washer according to claim 1, characterized in that: The clamping block (302) has an overall "L" shaped cross section, and the end of the clamping block (302) is arranged in an inclined manner.

4. The fixing clamp for machining outer toothing locking washer according to claim 3, characterized in that: The clamping block (302) is fixedly connected with a stop block (304), the mounting seat (205) is fixedly connected with a guide rod (305), and the stop block (304) is slidably connected with the guide rod (305).

5. The fixing clamp for machining outer toothing locking washer according to claim 4, characterized in that: The guide rod (305) is externally sleeved with a spring (306), one end of the spring (306) is fixedly connected with the stop block (304), and the other end of the spring (306) is fixedly connected with the mounting seat (205).

6. The external tooth locking washer machining fixture according to claim 1, characterized in that: A motor (201) is mounted on the shell (1), an output shaft of the motor (201) is fixedly connected with a rotating rod (202), an end of the rotating rod (202) is fixedly connected with a driving bevel gear (203), the driving bevel gear (203) is rotatably connected with the shell (1), a flat threaded disc (204) is rotatably connected with the shell (1), the driving bevel gear (203) is engaged with the bottom of the flat threaded disc (204), and the top end of the flat threaded disc (204) is engaged with the mounting seat (205).

7. The external tooth locking washer machining fixture according to claim 6, characterized in that: The mounting seat (205) has a "H" shaped cross section, and the bottom end of the mounting seat (205) has a sawtooth structure.

8. The fixing clamp for machining external tooth locking washer according to claim 6, characterized in that: Two driven bevel gears (206) are rotatably connected in the shell (1), the driven bevel gears (206) are engaged with the flat threaded disc (204), and the two driven bevel gears (206) are arranged in a circular array about the driving bevel gear (203).

9. The fixing clamp for machining the outer toothing locking washer according to claim 8, characterized in that: The rotating rod (202) has a rectangular cross section, and the two driven bevel gears (206) and the driving bevel gear (203) are arranged in a circular array about the center of the flat threaded disc (204).

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