Clamp for machining inner end face of starter driving end cover

Abstract

The utility model relates to a clamp for machining the inner end face of a starter driving end cover. The positioning piece is arranged on the base, and the positioning piece is used for being matched with the inner wall of the driving end cover; the clamping assemblies are annularly and evenly distributed on the base, the clamping assemblies are located on the outer side of the driving end cover, each clamping assembly comprises a first threaded rod, a pressing block and a first threaded block, the first threaded rods are arranged on the base, and the pressing blocks are arranged on the first threaded rods in a sleeving mode; the contact area with the driving end cover can be increased, so that the clamping force of the device is more uniformly distributed, the local stress of the driving end cover is reduced, and the risk of extrusion deformation is reduced, so that the quality and the processing effect of the driving end cover cannot be influenced under the condition that the driving end cover is stably clamped by the device; and meanwhile, driving end covers of different specifications can be clamped and fixed through the device, the applicability of the device can be enhanced, and practicability is high.

Description

TECHNICAL FIELD

[0001] The application relates to the starting motor driving end cover processing technical field, in particular to a clamp for starting motor driving end cover inner end face processing. BACKGROUND

[0002] The starting motor is also called a motor, which converts the electric energy of a storage battery into mechanical energy to drive the flywheel of an engine to rotate and realize the starting of the engine. The starting motor driving end cover is a key component of the starting motor, which is used for fixing the driving gear and the yoke of the starting motor to ensure that they are correctly meshed with the crankshaft flywheel ring of the engine.

[0003] In the related art, the inner end face processing of the starting motor driving end cover is a key step for ensuring the functionality and precision. Tradically, a three-jaw chuck is used to clamp and fix the driving end cover so as to facilitate the accurate inner end face processing by a milling cutter.

[0004] However, in actual operation, since the shell of the starting motor driving end cover is relatively thin, if the three-jaw chuck is directly used to clamp the side wall of the driving end cover, the force is too large, which may cause the deformation or damage of the driving end cover, affecting the subsequent assembly and function. If the force is too small, the stability and precision in the processing process cannot be guaranteed, thereby affecting the processing quality of the inner end face, which is very inconvenient.

[0005] In view of the above problems, the clamp for starting motor driving end cover inner end face processing is designed. CONTENT OF THE INVENTION

[0006] The embodiment of the application provides a clamp for starting motor driving end cover inner end face processing, so as to solve the problem of poor clamping effect of the three-jaw chuck on the starting motor driving end cover in the related art.

[0007] In a first aspect, a clamp for starting motor driving end cover inner end face processing is provided, which comprises:

[0008] a base;

[0009] a positioning member arranged on the base, the positioning member being used for cooperating with the inner wall of the driving end cover;

[0010] a clamping assembly, a plurality of clamping assemblies being arranged, the plurality of clamping assemblies being evenly distributed in a ring shape on the base, the clamping assembly being located on the outer side of the driving end cover, the clamping assembly comprising a first threaded rod, a pressing block and a first screw block, the first threaded rod being arranged on the base, the pressing block being sleeved on the first threaded rod, the pressing block being in sliding connection with the first threaded rod, the first screw block being sleeved on the first threaded rod and in threaded connection with the first threaded rod, the first screw block being located on the side of the pressing block away from the base.

[0011] In some embodiments, the first threaded rod is arranged in sliding connection on the base.

[0012] The clamping assembly further comprises a pushing assembly arranged on the base and connected with the first threaded rod to drive the first threaded rod to move towards or away from the driving end cover.

[0013] The positioning member comprises a centering assembly and a plurality of limiting members, the plurality of limiting members are annularly and uniformly distributed on the base, and the centering assembly is arranged on the base and connected with the plurality of limiting members to drive the plurality of limiting members to move towards or away from each other.

[0014] In some embodiments, the pushing assembly comprises a first sliding groove, a first sliding block, a screwing block and a second threaded rod, the first sliding groove is arranged on the base, the first sliding block is slidingly arranged in the first sliding groove, the first threaded rod is arranged on the first sliding block, the second threaded rod is rotationally arranged in the first sliding groove, the second threaded rod penetrates through the first sliding block and is threadedly connected with the first sliding block, and the screwing block is arranged on the second threaded rod.

[0015] In some embodiments, a plurality of second sliding grooves are arranged on the base.

[0016] The limiting member comprises an arc-shaped block, a second sliding block and a connecting rod, the second sliding block is slidingly arranged in the second sliding groove, the arc-shaped block is arranged on the second sliding block, and one end of the connecting rod is hingedly connected to the arc-shaped block.

[0017] The centering assembly comprises a third threaded rod, a second screw block and a sleeve, the third threaded rod is arranged on the base, the third threaded rod is located between the plurality of arc-shaped blocks, the second screw block is sleeved on the third threaded rod and is threadedly connected with the third threaded rod, the sleeve is sleeved on the second screw block and is rotationally connected with the second screw block, and the other end of the connecting rod away from the arc-shaped block is hingedly connected to the sleeve.

[0018] In some embodiments, the arc-shaped block is chamfered at the end away from the base.

[0019] In some embodiments, the clamping assembly further comprises a third screw block, the third screw block is sleeved on the first threaded rod and is threadedly connected with the first threaded rod, and the third screw block is located between the base and the pressing block.

[0020] In some embodiments, the clamping assembly further comprises a gasket, and the gasket is located between the first screw block and the pressing block.

[0021] The embodiment of the application provides a clamp for machining the inner end face of a starter driving end cover, the clamp can clamp and fix the two sides of the driving end cover through the base and the plurality of pressing blocks, so that the contact area of the device and the driving end cover can be increased, so that the force clamped by the device is more evenly distributed, the local stress of the driving end cover is reduced, and the risk of extrusion deformation is reduced, so that the device can ensure stable clamping of the driving end cover under the condition that the quality and machining effect of the driving end cover are not affected, the device can clamp and fix driving end covers of different specifications, and therefore the applicability, flexibility and practicality of the device are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0023] Figure 1 The structure schematic diagram of the use state provided by the embodiment of the application is shown in the figure.

[0024] Figure 2 The three-dimensional structure schematic diagram provided by the embodiment of the application is shown in the figure.

[0025] Figure 3 The structure schematic diagram of the clamping assembly provided by the embodiment of the application is shown in the figure.

[0026] Figure 4 The structure schematic diagram of the positioning piece provided by the embodiment of the application is shown in the figure.

[0027] In the figure: 1, base; 11, second sliding groove; 2, positioning piece; 21, centering assembly; 211, third threaded rod; 212, second screw block; 213, sleeve; 22, limiting piece; 221, arc-shaped block; 222, second sliding block; 223, connecting rod; 3, clamping assembly; 31, first threaded rod; 32, pressing block; 33, first screw block; 34, pushing assembly; 341, first sliding groove; 342, first sliding block; 343, screwing block; 344, second threaded rod; 35, third screw block; 36, gasket. DETAILED DESCRIPTION

[0028] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0029] The embodiment of the present application provides a clamp for machining an inner end face of a starter drive end cover, which can solve the problem of poor clamping effect of the starter drive end cover by a three-jaw chuck in the related art.

[0030] Please refer to Figures 1-4 A clamp for machining an inner end face of a starter drive end cover, comprising a base 1, a positioning piece 2, and a plurality of clamping assemblies 3, wherein the positioning piece 2 is arranged on the base 1, and the positioning piece 2 is used to cooperate with the inner wall of the drive end cover.

[0031] The plurality of clamping assemblies 3 are evenly distributed in a ring shape on the base 1, the clamping assemblies 3 are located on the outer side of the drive end cover, and the clamping assembly 3 comprises a first threaded rod 31, a pressing block 32, and a first screw block 33, wherein the first threaded rod 31 is arranged on the base 1, the pressing block 32 is sleeved on the first threaded rod 31, the pressing block 32 is in sliding connection with the first threaded rod 31, the first screw block 33 is sleeved on the first threaded rod 31 and is in threaded connection with the first threaded rod 31, and the first screw block 33 is located on the side of the pressing block 32 away from the base 1.

[0032] In this way, when the drive end cover needs to be machined, the worker can install the base 1 on the machine tool, then sleeve the drive end cover on the positioning piece 2 close to the base 1, and make the drive end cover located between the plurality of first threaded rods 31, so that the drive end cover can be preliminarily limited and fixed by cooperation of the positioning piece 2 and the drive end cover.

[0033] Then the worker can move the pressing block 32 to make the pressing block 32 abut against the annular protrusion on the outer side of the drive end cover, and then the worker can rotate the first screw block 33 to make the first screw block 33 move close to the base 1 through the threaded connection with the first threaded rod 31, so that the first screw block 33 pushes the pressing block 32 to move in the process of moving, so as to make the pressing block 32 extrude the annular protrusion of the drive end cover, and make the drive end cover move close to the base 1, so that the two sides of the drive end cover can be clamped and fixed by the base 1 and the plurality of pressing blocks 32 respectively.

[0034] Because the outer side of the driving end cover is a curved surface, in the traditional technology, the claws of the three-jaw chuck directly extrude the side surface of the driving end cover, the contact area is small, the support condition is relatively poor, and local stress concentration is easily caused, thereby causing the deformation of the driving end cover

[0035] In this way, the device can increase the contact area between the device and the driving end cover by the base 1 and the plurality of pressing blocks 32 for face-to-face contact extrusion, so that the clamping force of the device is more evenly distributed, the local stress of the driving end cover is reduced, and the risk of extrusion deformation is reduced. Thus, the device can ensure stable clamping of the driving end cover without affecting the quality and processing effect of the driving end cover, and has strong practicality.

[0036] Specifically, in the embodiment, the first threaded rod 31 is slidingly arranged on the base 1, and the clamping assembly 3 further comprises a pushing assembly 34, which is arranged on the base 1 and connected with the first threaded rod 31 to drive the first threaded rod 31 to move towards or away from the driving end cover.

[0037] The positioning member 2 comprises a centering assembly 21 and a plurality of limiting members 22, and the plurality of limiting members 22 are uniformly distributed in a ring shape on the base 1. The centering assembly 21 is arranged on the base 1 and connected with the plurality of limiting members 22 to drive the plurality of limiting members 22 to move towards or away from each other.

[0038] In this way, when different specifications of driving end covers need to be processed, the staff can drive the plurality of limiting members 22 to move towards or away from each other by the centering assembly 21 according to the specifications, so that the plurality of limiting members 22 can cooperate with the inner wall of the driving end cover to limit different specifications of driving end covers by the plurality of limiting members 22. Then, the first threaded rod 31 is driven by the pushing assembly 34 to move towards or away from the driving end cover, so that the pressing blocks 32 can correspond to the annular protrusions of the driving end cover to clamp and fix the driving end cover.

[0039] In this way, the positions of the limiting members 22 and the pressing blocks 32 can be adjusted as needed, so that the device can clamp and fix driving end covers of different specifications, thereby enhancing the applicability of the device, and the device has strong flexibility and is convenient to use.

[0040] More specifically, the pushing assembly 34 comprises a first sliding groove 341, a first sliding block 342, a screw block 343, and a second threaded rod 344. The first sliding groove 341 is formed in the base 1, the first sliding block 342 is slidingly arranged in the first sliding groove 341, the first threaded rod 31 is arranged on the first sliding block 342, the second threaded rod 344 is rotatably arranged in the first sliding groove 341, the second threaded rod 344 penetrates the first sliding block 342 and is threadedly connected therewith, and the screw block 343 is arranged on the second threaded rod 344.

[0041] Thus, when the position of the first threaded rod 31 needs to be adjusted, the worker can rotate the screw block 343 by means of a tool, drive the second threaded rod 344 to rotate through the screw block 343, drive the first sliding block 342 to move in the first sliding groove 341 through the threaded connection between the second threaded rod 344 and the first sliding block 342, and drive the first threaded rod 31 to move through the first sliding block 342, so that the first threaded rod 31 approaches or moves away from the drive end cover. Thus, the worker can conveniently adjust the position of the first threaded rod 31 by rotating the screw block 343 in the forward or reverse direction.

[0042] Further, in the embodiment, a plurality of second sliding grooves 11 are formed in the base 1, the limiting piece 22 comprises an arc-shaped block 221, a second sliding block 222, and a connecting rod 223, the second sliding block 222 is slidingly arranged in the second sliding groove 11, the arc-shaped block 221 is arranged on the second sliding block 222, and one end of the connecting rod 223 is hingedly connected to the arc-shaped block 221.

[0043] The centering assembly 21 comprises a third threaded rod 211, a second screw block 212, and a sleeve 213, the third threaded rod 211 is arranged on the base 1, the third threaded rod 211 is located between the arc-shaped blocks 221, the second screw block 212 is sleeved on the third threaded rod 211 and is in threaded connection with the third threaded rod 211, the sleeve 213 is sleeved on the second screw block 212 and is in rotational connection with the second screw block 212, and the other end of the connecting rod 223 away from the arc-shaped block 221 is hingedly connected to the sleeve 213.

[0044] Thus, in use, the worker can rotate the second screw block 212, drive the sleeve 213 to move through the threaded connection between the second screw block 212 and the third threaded rod 211, drive the arc-shaped blocks 221 to move through the connecting rod 223, and drive the arc-shaped blocks 221 to move linearly through the limiting action of the second sliding block 222 and the second sliding groove 11. Thus, the arc-shaped blocks 221 can simultaneously approach or move away from each other, the positions of the arc-shaped blocks 221 can be adjusted according to the specifications of the drive end cover, different specifications of drive end covers can be limited through the arc-shaped blocks 221, and use is facilitated.

[0045] Further, the ends of the arc-shaped blocks 221 away from the base 1 are chamfered.

[0046] Thus, the worker can more conveniently sleeve the drive end cover on the arc-shaped blocks 221, and the worker does not need to completely align the drive end cover with the arc-shaped blocks 221, so that the operation of the worker is facilitated, and the utility is strong.

[0047] The clamping assembly 3 further comprises a third screw block 35, which is sleeved on the first threaded rod 31 and threadedly connected with the first threaded rod 31, and is located between the base 1 and the pressing block 32;

[0048] Thus, during use, the worker can adjust the position of the third screw block 35 on the first threaded rod 31 according to the position of the pressing block 32, and when the pressing block 32 does not press and clamp the driving end cover, the third screw block 35 can block and limit the pressing block 32, so that the pressing block 32 cannot move to the end of the first threaded rod 31 close to the base 1, and thus the worker does not need to move the pressing block 32 greatly every time the driving end cover is clamped, which is convenient for use.

[0049] Preferably, the clamping assembly 3 further comprises a gasket 36, which is located between the first screw block 33 and the pressing block 32.

[0050] Thus, when the first screw block 33 rotates, the gasket 36 can protect the pressing block 32, so that the first screw block 33 does not directly rub against the pressing block 32 and is not worn, which can ensure the service life of the device.

[0051] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0053] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A fixture for machining the inner end surface of a starter drive cover, characterized in that: It includes: Base (1); Positioning piece (2) provided on the base (1), the positioning piece (2) is used for cooperating with the inner wall of the driving end cover; Clamping assembly (3) is provided with a plurality of groups, a plurality of clamping assemblies (3) are uniformly distributed in the form of ring on the base (1), the clamping assembly (3) is located on the outside of the driving end cover, the clamping assembly (3) includes first threaded rod (31), pressing block (32) and first screw block (33), the first threaded rod (31) is provided on the base (1), the pressing block (32) is sleeved on the first threaded rod (31), the pressing block (32) is connected with the first threaded rod (31) slidingly, the first screw block (33) is sleeved on the first threaded rod (31) and is connected with it in screw thread, the first screw block (33) is located on the side, away from the base (1), of the pressing block (32).

2. The clamp for machining the inner end face of the driving end cover of the starter according to claim 1, wherein: The first threaded rod (31) is slidingly arranged on the base (1); The clamping assembly (3) further includes a pushing assembly (34), the pushing assembly (34) is arranged on the base (1) and connected with the first threaded rod (31) to drive the first threaded rod (31) to move towards or away from the driving end cover; The positioning piece (2) includes a centering assembly (21) and a plurality of limiting pieces (22), the plurality of limiting pieces (22) are uniformly distributed in the form of ring on the base (1), the centering assembly (21) is arranged on the base (1) and connected with the plurality of limiting pieces (22) to drive the plurality of limiting pieces (22) to move towards or away from each other.

3. The clamp for machining the inner end face of the driving end cover of the starter according to claim 2, wherein: The pushing assembly (34) includes a first sliding groove (341), a first sliding block (342), a screwing block (343) and a second threaded rod (344), the first sliding groove (341) is formed in the base (1), the first sliding block (342) is slidingly arranged in the first sliding groove (341), the first threaded rod (31) is arranged on the first sliding block (342), the second threaded rod (344) is rotatably arranged in the first sliding groove (341), the second threaded rod (344) penetrates through the first sliding block (342) and is connected with it in screw thread, and the screwing block (343) is arranged on the second threaded rod (344).

4. The clamp for machining the inner end face of the driving end cover of the starter according to claim 2, wherein: A plurality of second sliding grooves (11) are formed in the base (1); The limiting piece (22) includes an arc-shaped block (221), a second sliding block (222) and a connecting rod (223), the second sliding block (222) is slidingly arranged in the second sliding groove (11), the arc-shaped block (221) is arranged on the second sliding block (222), and one end of the connecting rod (223) is hingedly connected to the arc-shaped block (221). The centering assembly (21) comprises a third threaded rod (211), a second screw block (212) and a sleeve (213), the third threaded rod (211) is arranged on the base (1), the third threaded rod (211) is located between a plurality of arc blocks (221), the second screw block (212) is sleeved on the third threaded rod (211) and is threadedly connected with the third threaded rod (211), the sleeve (213) is sleeved on the second screw block (212) and is rotationally connected with the second screw block (212), and one end of the connecting rod (223) away from the arc block (221) is hinged to the sleeve (213).

5. The fixture for machining the inner end face of the drive end cover of a starter according to claim 4, characterized in that: The arc blocks (221) are chamfered at the ends away from the base (1).

6. The fixture for machining the inner end face of the drive end cover of a starter according to claim 1, characterized in that: The clamping assembly (3) further comprises a third screw block (35), the third screw block (35) is sleeved on the first threaded rod (31) and is threadedly connected with the first threaded rod (31), and the third screw block (35) is located between the base (1) and the pressing block (32).

7. The fixture for machining the inner end face of the drive end cover of a starter according to claim 1, characterized in that: The clamping assembly (3) further comprises a gasket (36), and the gasket (36) is located between the first screw block (33) and the pressing block (32).

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