Cushion block type clamping fixture and shaft part machining equipment

Abstract

The utility model discloses a cushion block type clamping fixture and shaft part machining equipment, and belongs to the technical field of part machining, the cushion block type clamping fixture comprises a fixture main body, a first tip and a second tip, the first tip and the second tip are respectively arranged at the first end and the second end of the fixture main body; the connecting flange is sleeved and fastened on one or two of the first tip and the second tip, a limiting cylinder is arranged at the first end of the connecting flange, the inner diameter of the limiting cylinder is larger than the outer diameter of the shaft part, locking pieces are arranged on the limiting cylinder in a penetrating mode, and the multiple locking pieces are arranged on the limiting cylinder in an annular array mode; the ends, close to the shaft parts, of the locking pieces make contact with the cushion blocks, the cushion blocks are attached to the surfaces of the shaft parts, and the locking pieces are used for being screwed in and pressing the cushion blocks so as to press and limit the shaft parts. According to the device, the two ends of the shaft part are tightly jacked and limited, the surface of the outer ring of the shaft can be exposed, and the outer surface of the shaft part can be conveniently machined.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular, to a pad-type clamping fixture. In addition, the utility model also relates to a shaft parts processing equipment comprising the pad-type clamping fixture. Background Art

[0002] In the field of parts processing technology, especially in the processing of shaft parts, such as when grinding the splines of a double-headed spline shaft, the spline shaft needs to be firmly clamped. For example, a Chinese patent with patent publication number CN208034204U discloses a device for processing the inner hole of a spline shaft, which discloses a solution for fixing the spline limit. However, the clamping of this solution is not convenient and fast enough, and it is mainly aimed at the processing of the inner hole of the shaft. Therefore, the two ends of the shaft parts are not tightened and limited, and the outer ring surface of the shaft cannot be exposed, which is not convenient for processing the outer surface of the shaft parts. Utility Model Content

[0003] One purpose of the utility model is to provide a pad-type clamping fixture and shaft parts processing equipment to solve the technical problems that the shaft parts are inconvenient to clamp, the outer ring surface of the shaft cannot be exposed, and the outer surface of the shaft parts is inconvenient to process.

[0004] Another object of the utility model is to provide a shaft parts processing equipment including the above-mentioned pad type clamping fixture.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A pad-type clamping fixture comprises a fixture body, and:

[0007] A first top and a second top, the first top and the second top are respectively arranged at the first end and the second end of the fixture body, and the first top and the second top are respectively used to tighten the axial ends of the limiting shaft parts;

[0008] Connecting flange and gasket, the connecting flange is sleeved and fastened on the first top and / or the second top, a limiting cylinder is arranged at the first end of the connecting flange, the inner diameter of the limiting cylinder is larger than the outer diameter of the shaft part, a locking piece is passed through the limiting cylinder, and a plurality of locking pieces are arranged in a circular array on the limiting cylinder, the gasket is used to be arranged between the locking piece and the shaft part, and the locking piece is used to screw in and press the gasket to thereby press the shaft part to limit the position.

[0009] In one or more embodiments of the pad-type clamping fixture, mounting plates are provided at the first and second ends of the fixture body, and limiting holes are provided on opposite sides of the mounting plates on both sides, and the first and second tips are correspondingly inserted into the limiting holes of the mounting plates on both sides.

[0010] In one or more embodiments of the pad-type clamping fixture, a spring is arranged in the limiting hole along its axial direction, the first end of the spring is connected to the inner wall of the limiting hole, and the second end of the spring is connected to the first top or the second top.

[0011] In one or more embodiments of the pad-type clamping fixture, the first ends of the first tip and the second tip are both conical structures, and the second ends of the first tip and the second tip are both columnar structures. The first ends of the first tip and the second tip are respectively used to cooperate with the preset openings or grooves at both ends of the shaft parts to tighten and limit the two ends of the shaft parts.

[0012] In one or more embodiments of the pad-type clamping fixture, a limiting protrusion is provided on the second end of the connecting flange, and a mounting hole is opened at the center of the limiting protrusion, and the mounting hole is used to cooperate with the first center or the second center. A fastening screw hole is opened in an annular array on the inner wall of the mounting hole, and a first screw is arranged in the fastening screw hole. The first screw is used to screw into and tighten the first center or the second center in the mounting hole to thereby limit and fasten the connecting flange to the first center or the second center.

[0013] In one or more embodiments of the pad-type clamping fixture, the first ends of the first and second apexes are both conical structures, the second ends of the first and second apexes are both columnar structures, and the mounting hole is used to cooperate with the second end of the first apex or the second apex.

[0014] In one or more embodiments of the pad-type clamping fixture, the inner surface of the pad for fitting the shaft part is set as an arc surface structure that is compatible with the outer surface of the shaft part, and the arc surface structure is provided with a tooth shape for abutting the shaft part.

[0015] In one or more embodiments of the pad-type clamping fixture, the locking member is a second screw, the second screw cooperates with a preset screw hole on the limiting cylinder, and the length of the second screw is greater than the length of the screw hole of the limiting cylinder.

[0016] In one or more embodiments of the pad-type clamping fixture, the locking member is a screw rod, which cooperates with a preset screw hole on the limiting cylinder. The length of the screw rod is greater than the length of the screw hole of the limiting cylinder, and a handle is provided at the top of the screw rod.

[0017] According to another aspect of the utility model, a shaft parts processing device is also provided, which includes the above-mentioned pad type clamping fixture.

[0018] The utility model has the following beneficial effects:

[0019] The utility model discloses a pad-type clamping fixture which respectively tightens and limits the two ends of the shaft part by the first center and the second center, and at the same time, the pad is fitted and pressed against the outer surface of the shaft part by the connecting flange and the locking member, so as to achieve stable limitation of the shaft part and avoid rotation and movement, and at the same time, the outer surface of the shaft part can be fully exposed so as to process the outer surface of the shaft part; and the clamping is very convenient and quick, and the locking member only needs to be loosened to take out the pad, and then the first center or the second center can be loosened to take out the shaft part. The disassembly and assembly of the parts is convenient and efficient, which is beneficial to improving the overall processing efficiency of the shaft parts.

[0020] The shaft parts processing equipment of the utility model also has the above-mentioned beneficial effects.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present invention also has other purposes, features and advantages. The present invention will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a cushion block according to a preferred embodiment of the utility model.

[0025] Legend: 1. First center; 2. First screw; 3. Limiting protrusion; 4. Connecting flange; 5. Second screw; 6. Spacer; 7. Workpiece shaft; 8. Second center. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0027] Please refer to the attached drawing, which is a structural schematic diagram of a preferred embodiment of a pad-type clamping fixture and shaft parts processing equipment provided by the utility model.

[0028] A pad-type clamping fixture comprises a fixture body, and:

[0029] A first top 1 and a second top 8, the first top 1 and the second top 8 are respectively arranged at the first end and the second end of the fixture body, and the first top 1 and the second top 8 are respectively used to tighten and limit the axial ends of the shaft-like parts;

[0030] The connecting flange 4 and the spacer 6 are provided. The connecting flange 4 is sleeved and fastened on the first top 1 and / or the second top 8. A limiting cylinder is provided at the first end of the connecting flange 4. The inner diameter of the limiting cylinder is larger than the outer diameter of the shaft part. A locking piece is passed through the limiting cylinder. A plurality of locking pieces are arranged in a circular array on the limiting cylinder. The spacer 6 is used to be provided between the locking piece and the shaft part. The locking piece is used to screw in and press the spacer 6 to thereby press the shaft part to limit the position.

[0031] Here, the meaning of "the first pinnacle 1 and the second pinnacle 8" refers to the structure for tightening and limiting the two ends of the shaft parts. In some embodiments, the first pinnacle 1 and the second pinnacle 8 are both cylindrical structures with pointed heads.

[0032] The present invention does not exclude that the first top 1 and the second top 8 are both fixedly installed, or one of them is slidably installed, or both can slide relative to each other to adjust the relative position. When both are fixedly installed, the openings or grooves preset at both ends of the shaft part can be clamped with the pointed part of the first top 1 or the second top 8, and then the shaft part is firmly clamped by connecting the flange 4 and the pad 6.

[0033] The utility model respectively tightens and limits the two ends of the shaft parts by the first center 1 and the second center 8, and at the same time, the cushion block is fitted and pressed against the outer surface of the shaft parts by the connecting flange 4 in cooperation with the locking member, so as to achieve stable limitation of the shaft parts and avoid rotation and movement. At the same time, the outer surface of the shaft parts can be fully exposed so as to process the outer surface of the shaft parts. Moreover, the clamping is very convenient and quick, and the locking member only needs to be loosened to take out the cushion block 6, and then the first center 1 or the second center 8 can be loosened to take out the shaft parts. The disassembly and assembly of the parts is convenient and efficient, which is beneficial to improving the overall processing efficiency of the shaft parts.

[0034] It should be noted that the present invention does not exclude any solution of setting one or two connecting flanges 4. One connecting flange 4, in conjunction with the gasket 6 and the locking piece, can firmly clamp one end of the shaft part, and two connecting flanges 4 can clamp and fix both ends of the shaft part.

[0035] In one embodiment, mounting plates are provided at the first and second ends of the clamp body, and limiting holes are provided on opposite sides of the mounting plates on both sides, and the first tip 1 and the second tip 8 are correspondingly inserted into the limiting holes of the mounting plates on both sides.

[0036] It can be understood that in this embodiment, the first center point 1 and the second center point 8 are both movably installed and can slide relative to each other to adjust the position, so as to facilitate the first center point 1 and the second center point 8 to tighten and limit the axial ends of the shaft parts after they are placed.

[0037] Optionally, a spring is arranged in the limiting hole along its axial direction, a first end of the spring is connected to the inner wall of the limiting hole, and a second end of the spring is connected to the first top 1 or the second top 8.

[0038] It is understandable that the first top 1 and the second top 8 are connected by a spring, so as to facilitate the adjustment of the positions of the first top 1 and the second top 8. Of course, the present invention does not exclude the solution that when only one connecting flange 4 is used, the first top 1 or the second top 8 connected to the connecting flange 4 is fixedly installed on the mounting plate, and in this case, the quick clamping of the shaft parts can be realized by simply pushing the other top that is not connected to the connecting flange 4.

[0039] Preferably, please refer to Figure 1 As shown, the first ends of the first tip 1 and the second tip 8 are both conical structures, and the second ends of the first tip 1 and the second tip 8 are both columnar structures. The first ends of the first tip 1 and the second tip 8 are respectively used to cooperate with the preset openings or grooves at both ends of the shaft parts to tighten and limit the two ends of the shaft parts.

[0040] It can be understood that the first ends of the first tip 1 and the second tip 8 are configured as a cone mechanism, so that the first tip 1 and the second tip 8 have pointed tips, which can cooperate with the preset openings or grooves at both ends of shaft parts. The openings or grooves and the pointed tips can easily slip, so that the pointed tips can be quickly aligned with the openings or grooves, which can improve the convenience of clamping and positioning of shaft parts.

[0041] Preferably, please refer to Figure 1 As shown, a limiting protrusion 3 is provided at the second end of the connecting flange 4, and a mounting hole is opened at the center of the limiting protrusion 3, and the mounting hole is used to cooperate with the first top point 1 or the second top point 8. A fastening screw hole is opened in a circular array on the inner wall of the mounting hole, and a first screw 2 is arranged in the fastening screw hole. The first screw 2 is used to screw into and tighten the first top point 1 or the second top point 8 in the mounting hole, so as to limit and fasten the connecting flange 4 to the first top point 1 or the second top point 8.

[0042] Specifically, the first ends of the first apex 1 and the second apex 8 are both cone structures, the second ends of the first apex 1 and the second apex 8 are both column structures, and the mounting hole is used to cooperate with the second end of the first apex 1 or the second apex 8.

[0043] It can be understood that the connecting flange 4 cooperates with the first top 1 or the second top 8 through the limiting protrusion 3, specifically cooperates with the column part of the second end of the first top 1 or the second top 8, avoids the cone at the first end of the first top 1 or the second top 8, and presses and locks the connecting flange 4 and the first top 1 or the second top 8 through the first screw 2, which not only makes the connection very stable, but also is very convenient for disassembly and assembly.

[0044] Preferably, please refer to Figure 2 As shown, the inner surface of the cushion block 6 for fitting the shaft-like part is set as an arc surface structure matched with the outer surface of the shaft-like part, and the arc surface structure is provided with a tooth shape for abutting the shaft-like part.

[0045] It can be understood that the pad 6 plays the role of circumferential locking and limiting the shaft parts. Therefore, by providing a tooth surface structure that matches the outer surface of the shaft parts on the inner surface of the pad 6, the contact friction between the pad 6 and the shaft parts can be increased, thereby improving the stability of the limit.

[0046] In one embodiment, the locking member is a second screw 5, and the second screw 5 cooperates with a preset screw hole on the limiting cylinder, and the length of the second screw 5 is greater than the length of the screw hole of the limiting cylinder.

[0047] It is understandable that the use of the second screw 5 as a locking member is low in cost, and the spacer 6 can be tightened or loosened simply by screwing the second screw 5 in or out with a tool.

[0048] In another embodiment, the locking member is a screw rod, the screw rod cooperates with a preset screw hole on the limiting cylinder, the length of the screw rod is greater than the length of the screw hole of the limiting cylinder, and a handle is provided at the top end of the screw rod.

[0049] It is understandable that by using a screw with a handle as the locking member, the locking member can be conveniently tightened manually, making the installation and removal of the cushion block 6 more convenient.

[0050] According to another aspect of the utility model, a shaft parts processing device is also provided, which includes the above-mentioned pad type clamping fixture.

[0051] The shaft parts processing equipment of the utility model also has the above-mentioned beneficial effects.

[0052] It should be noted that the utility model is not only applicable to shaft parts such as double-headed splines and shaft grinding splines (in this case, the inner surface of the pad 6 is provided with a tooth surface structure that matches the spline groove), but also applicable to the clamping and limiting of parts with structural forms such as double-headed gear shafts; one-head spline and one-head gear shaft; one-head spline and one-head spiral bevel shaft. It only needs to provide a tooth surface structure that matches the outer surface of the gear shaft or spiral bevel shaft on the inner surface of the pad 6, or use a gear pad or a spiral bevel pad. Therefore, the utility model has a wide adaptability and good practicality.

[0053] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0054] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection of the utility model.

Claims

1. A pad-type clamping fixture, characterized in that: Includes the fixture body, and: A first top point (1) and a second top point (8), the first top point (1) and the second top point (8) are respectively arranged at the first end and the second end of the fixture body, and the first top point (1) and the second top point (8) are respectively used to tighten and limit the axial ends of the shaft-like parts; A connecting flange (4) and a cushion block (6), wherein the connecting flange (4) is sleeved and fastened on the first center (1) and / or the second center (8), a limiting cylinder is arranged at the first end of the connecting flange (4), the inner diameter of the limiting cylinder is larger than the outer diameter of the shaft part, a locking piece is passed through the limiting cylinder, and a plurality of locking pieces are arranged in an annular array on the limiting cylinder, the cushion block (6) is used to be cushioned between the locking piece and the shaft part, and the locking piece is used to screw in and press the cushion block (6) to thereby press the shaft part to limit the position.

2. A pad-type clamping fixture according to claim 1, characterized in that: The first end and the second end of the clamp body are both provided with mounting plates, and limiting holes are provided on opposite sides of the mounting plates on both sides, and the first center (1) and the second center (8) are plugged into the limiting holes of the mounting plates on both sides in a one-to-one correspondence.

3. A pad-type clamping fixture according to claim 2, characterized in that: A spring is arranged in the limiting hole along its axial direction, the first end of the spring is connected to the inner wall of the limiting hole, and the second end of the spring is connected to the first top (1) or the second top (8).

4. A pad-type clamping fixture according to any one of claims 1 to 3, characterized in that: The first ends of the first tip (1) and the second tip (8) are both cone structures, and the second ends of the first tip (1) and the second tip (8) are both column structures. The first ends of the first tip (1) and the second tip (8) are respectively used to cooperate with the openings or grooves preset at the two ends of the shaft part to tighten and limit the two ends of the shaft part.

5. The pad-type clamping fixture according to claim 1, characterized in that: A limiting protrusion (3) is provided at the second end of the connecting flange (4), a mounting hole is provided at the center of the limiting protrusion (3), the mounting hole is used to cooperate with the first center (1) or the second center (8), a fastening screw hole is provided in a circular array on the inner wall of the mounting hole, a first screw (2) is provided in the fastening screw hole, the first screw (2) is used to screw into and tighten the first center (1) or the second center (8) in the mounting hole, and then the connecting flange (4) and the first center (1) or the second center (8) are limitedly fastened.

6. A pad-type clamping fixture according to claim 5, characterized in that: The first ends of the first tip (1) and the second tip (8) are both cone structures, the second ends of the first tip (1) and the second tip (8) are both column structures, and the mounting hole is used to cooperate with the second end of the first tip (1) or the second tip (8).

7. The pad-type clamping fixture according to claim 1, characterized in that: The inner surface of the cushion block (6) for fitting the shaft-like part is set as a curved surface structure matched with the outer surface of the shaft-like part, and the curved surface structure is provided with a tooth shape for abutting the shaft-like part.

8. The pad-type clamping fixture according to claim 1, characterized in that: The locking member is a second screw (5), which cooperates with a screw hole preset on the limiting cylinder, and the length of the second screw (5) is greater than the length of the screw hole of the limiting cylinder.

9. The pad-type clamping fixture according to claim 1, characterized in that: The locking piece is a screw rod, which cooperates with a screw hole preset on the limiting cylinder. The length of the screw rod is greater than the length of the screw hole of the limiting cylinder, and a handle is arranged at the top of the screw rod.

10. A shaft parts processing equipment, characterized in that: It comprises a pad-type clamping fixture as described in any one of claims 1-9.

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