Elbow part clamp

Abstract

The utility model discloses an elbow part clamp. Comprising a base; one end of the seat body is provided with a first limiting part, and the other end is provided with a second limiting part; the first limiting part and the second limiting part are respectively mounted on the same side of the seat body; the number of the second limiting parts is two, the two second limiting parts are located on the two opposite sides of the base body, and fixing pieces are arranged at the tops of the second limiting parts. The fixing piece is detachably connected to the top of the second limiting part, and the fixing piece, the second limiting part and the base form a clamping cavity of the elbow part. The side, facing the base body, of the clamping cavity and the side, back on to the base body, of the clamping cavity are contact faces correspondingly matched with the elbow part respectively. The first limiting part and the second limiting part are arranged on the seat body to position the elbow part in the length direction, and the second limiting part is arranged to position the elbow part in the width direction, so that the positioning accuracy of the elbow part is ensured, the traditional correction mode depending on a process hole is abandoned, and the problem of center distance deviation caused by correction errors is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of elbow processing technology, specifically to a clamp for elbow parts. Background Technology

[0002] In the field of machining, the machining accuracy and efficiency of elbow parts have always been key issues of great concern. Especially for non-right-angle elbow parts, traditional processes have significant drawbacks. Typically, machining such parts requires first machining the process hole of the inner bore using boring methods, then clamping the part with a four-jaw chuck, and correcting it using the process hole as a reference before performing turning operations. However, in actual operation, errors easily occur in the correction process due to the machining accuracy of the process hole, the clamping stability of the four-jaw chuck, and human factors during correction. These errors inevitably lead to deviations in the center distance of the machined parts, seriously affecting the dimensional accuracy of the parts, and consequently causing problems such as poor fit during subsequent assembly, reducing the overall quality and performance of the product. Furthermore, the traditional machining process is lengthy and complex. From machining the process hole to the four-jaw chuck clamping and correction, a series of operations consume a lot of time and labor costs, greatly extending the machining cycle and severely restricting the improvement of production efficiency, making it difficult to meet the urgent needs of modern manufacturing for efficient and high-precision production. Therefore, developing a new type of elbow part fixture that can effectively solve the above problems is of great practical significance. Utility Model Content

[0003] In view of this, this application provides a fixture for elbow parts to solve the problem in the prior art that the machining of non-right-angle elbow parts requires prior calibration using a process hole as a reference before turning operations. However, errors inevitably occur during the calibration process, affecting the accuracy of the parts. The specific solution is as follows:

[0004] A fixture for elbow parts includes a base;

[0005] One end of the base is provided with a first limiting part, and the other end of the base is provided with a second limiting part;

[0006] The first limiting part and the second limiting part are respectively installed on the same side of the base;

[0007] There are two second limiting parts, which are located on opposite sides of the base body, and a fixing member is provided on the top of the second limiting part;

[0008] The fixing member is detachably connected to the top of the second limiting part, and forms a clamping cavity for the elbow part with the second limiting part and the seat body;

[0009] The side of the clamping cavity facing the base and the side facing away from the base are the contact surfaces that respectively match the elbow parts.

[0010] Preferably, the side of the seat facing the elbow part matches the contact surface of the elbow part.

[0011] Preferably, the distance between the two second limiting portions matches the width of the elbow component.

[0012] Preferably, the distance between the second limiting part and the first limiting part matches the length of the elbow part.

[0013] Preferably, the fastener has an overall U-shaped structure with the opening facing downwards, and both ends of the fastener are detachably connected to the tops of the two second limiting parts, and the inner width of the fastener matches the distance between the two second limiting parts.

[0014] Preferably, the upper surface of the second limiting part matches the contact surface of the elbow part;

[0015] The fastener has connecting flanges extending outward from both ends in opposite directions.

[0016] The connecting flange matches the upper surface of the second limiting part, and the connecting flange is detachably connected to the top of the second limiting part.

[0017] Preferably, a connecting portion is provided on the side of the seat body facing away from the first limiting portion and the second limiting portion;

[0018] The connecting part is vertically connected to the center of the base.

[0019] Compared with the prior art, the beneficial effects of this application are as follows:

[0020] This application achieves positioning of the elbow part in the length direction by providing a first limiting part and a second limiting part on one side of the base body, and positioning of the elbow part in the width direction by providing a second limiting part on opposite sides at one end of the base body, and a fixing part on the side of the elbow part facing away from the base body. The cooperation of these four parts forms a clamping cavity that matches the elbow part, ensuring the positioning accuracy of the elbow part during processing. Whether it is a right-angle elbow or a non-right-angle elbow part, it can ensure that the accuracy of the outer circle, inner hole and angle after processing meets high standard requirements. Thus, it abandons the traditional method of relying on process hole correction and effectively avoids the center distance deviation problem caused by correction error.

[0021] From a production efficiency perspective, it simplifies the traditionally complex machining process. There's no longer a need to pre-machine process holes and tedious calibration steps; clamping and machining are performed directly using fixtures, significantly shortening the machining cycle. Operators can complete part machining operations more quickly, improving production efficiency.

[0022] In terms of versatility, the fixture is designed so that the inner surface of the base and the side of the fixing member facing the base are parallel to each other and respectively match the contact surface of the elbow part. This allows it to adapt to elbow parts with different angles, including common right-angle elbow parts and various non-right-angle elbow parts. By simply adjusting the relevant parameters of the fixture according to the specific size and shape of the elbow part, such as the spacing of the second limiting part, the distance from the first limiting part, and the shape of the contact surface of the base and the fixing member, it is possible to effectively clamp and process various types of elbow parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a fixture for elbow parts.

[0024] Figure 2 This is a side view of a fixture for elbow parts;

[0025] Figure 3 This is a front view of a fixture for elbow parts;

[0026] Figure 4 This is a schematic diagram of the structure of the seat in a fixture for elbow parts.

[0027] Figure 5 This is a schematic diagram illustrating the use of a clamp for elbow parts in an embodiment of this application;

[0028] Figure 6 This is a side view of a clamp for elbow parts in use according to an embodiment of this application;

[0029] Figure 7 for Figure 6 Side view;

[0030] In the figure: 1. First limiting part; 2. Seat body; 3. Inner surface of the seat body; 4. Connecting bolt assembly; 5. Connecting flange; 6. Second limiting part; 7. Fastener; 8. Connecting part; 9. Elbow part. Detailed Implementation

[0031] As attached Figure 1-4 The provided fixture for elbow parts includes a base.

[0032] One end of the seat 2 is provided with a first limiting part 1, and the other end of the seat 2 is provided with a second limiting part 6;

[0033] The first limiting part 1 and the second limiting part 6 are respectively installed on the same side of the base body 2;

[0034] There are two second limiting parts 6, which are spaced apart and installed on opposite sides of the seat body 2 respectively (since the radial dimension and the extension direction dimension of the elbow part are fixed, in one embodiment of this application, the second limiting part 6 and the first limiting part 1 are integrally formed with the seat body 2 respectively). A fixing member is provided on the top of the second limiting part 6.

[0035] The fixing member 7 is detachably connected to the top of the second limiting part 6, and together with the second limiting part 6 and the seat 2, forms the clamping cavity of the elbow part 9;

[0036] The side of the clamping cavity facing the seat 2 and the side facing away from the seat 2 are respectively the contact surfaces that match the elbow part 9.

[0037] It should be noted that:

[0038] In this application, the first limiting part 1 and the second limiting part 6 form a clamping space for the extension direction (length direction) of the elbow part;

[0039] The second limiting parts 6 located on opposite sides of the seat 2 form a clamping space in the radial direction (width direction) of the elbow part 9;

[0040] The fixing member 7 is detachably connected to the top of the second limiting part 6. The fixing member 7, the inner surface 3 of the seat (that is, the surface of the seat 2 where the first limiting part 1 and the second limiting part 6 are provided), and the opposite side of the two second limiting parts 6 form the clamping cavity of the elbow part 9.

[0041] The inner surface 3 of the seat and the side of the fixing member 7 facing the seat 2 are matched with the contact surface of the elbow part. That is, when the elbow part 9 being clamped is a right-angle elbow part, the inner surface 3 of the seat and the side of the fixing member 7 facing the seat 2 are both right-angle surfaces; when the elbow part 9 being clamped is a non-right-angle elbow part, the inner surface 3 of the seat and the side of the fixing member 7 facing the seat 2 are parallel inclined surfaces, and their inclination matches the inclination of the contact surface of the non-right-angle elbow part (i.e., the outer surface of the non-right-angle elbow part); thus, the clamping of right-angle elbows and non-right-angle elbow parts is realized.

[0042] Furthermore, the side of the seat 2 facing the elbow part 9 matches the contact surface of the elbow part 9.

[0043] It should be noted that:

[0044] In this application, when the elbow part 9 is a right-angle elbow, the inner surface 3 of the seat is a right-angled surface; when the elbow part 9 is a non-right-angle elbow, the inner surface 3 of the seat is an inclined surface that matches the contact surface of the elbow part 9.

[0045] Furthermore, the spacing between the two second limiting parts 6 matches the width (radial dimension) of the elbow part 9.

[0046] Furthermore, the distance between the second limiting part 6 and the first limiting part 1 (i.e., the straight-line distance between them) matches the length of the elbow part 9.

[0047] Furthermore, the fixing member 7 is in the form of a U-shaped structure with the opening facing downwards. The two ends of the fixing member 7 are detachably connected to the top of the two second limiting parts 6 respectively. The inner width of the fixing member 7 matches the distance between the two second limiting parts (specifically, the distance between the two vertical ends of the U-shaped structure on opposite sides).

[0048] Furthermore, the upper surface of the second limiting part 6 matches the contact surface of the elbow part 9;

[0049] The fastener has connecting flanges extending outward from both ends in opposite directions.

[0050] The connecting flange 5 matches the upper surface of the second limiting part 6, and the connecting flange 5 is detachably connected to the top of the second limiting part 6 by the connecting bolt assembly 4.

[0051] It should be noted that:

[0052] In this application, when the elbow part 9 is a right-angle elbow, the upper surface of the second limiting part 6 and the connecting flange 5 are right-angle surfaces. When the elbow part 9 is a non-right-angle elbow, the upper surface of the second limiting part 6 and the connecting flange 5 are inclined surfaces that match the contact surface of the elbow part 9, thereby achieving the matching of the side of the fixing member 7 facing the seat 2 with the contact surface of the elbow part 9.

[0053] Furthermore, a connecting part 8 is provided on the side of the seat body 2 facing away from the first limiting part 1 and the second limiting part 6;

[0054] The connecting part 8 is vertically connected to the center of the base 2.

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example

[0057] As attached Figure 5 The non-right-angle bend shown is an example, and the included angle of the non-right-angle bend part is 87°.

[0058] First, prepare the elbow part fixture as described above. The elbow part fixture includes a base 2, a first limiting part 1 located at one end of the base 2 and a second limiting part 6 located on opposite sides of the other end of the base 2, a connecting part 8 vertically connected to the side of the base 2 facing away from the first limiting part 1 and the second limiting part 6, and a fixing member 7 detachably connected to the top of the second limiting part 6.

[0059] The first limiting part 1 and the second limiting part 6 are located on the side of the seat body 2 facing the non-right angle elbow part, and the first limiting part 1 and the second limiting part 6 are integrally formed with the seat body 2, and the connecting flange 5 is integrally formed with the fastener 7.

[0060] The inner surface 3 of the seat (i.e. the side facing the non-right-angle elbow part) and the upper surface of the second limiting part 6 (i.e. the side facing the fixing part 7) are respectively inclined surfaces that match the slope of the bottom outer surface of the 87-degree elbow part.

[0061] The distance between the two second limiting parts 6 is precisely matched to the width of the non-right angle elbow part, and the distance between the second limiting part 6 and the first limiting part 1 is adapted to the length of the non-right angle elbow part (so that the non-right angle elbow part can be fixed, and the end turning distance can be reserved at the same time).

[0062] The fastener 7 has a U-shaped structure with the opening facing downwards. Its inner width is consistent with the distance between the two second limiting parts 6. The connecting flanges 5 at both ends are matched with the side of the second limiting part that contacts it (which is an inclined surface that matches the contact surface of the 87-degree elbow part).

[0063] During processing, as shown in the attached Figure 6-7 As shown, first place the connecting part 8 of this device into the three-jaw chuck of the machine tool and clamp it. Press one end of the non-right angle elbow part onto the inner surface 3 of the seat body. Determine the center distance and achieve front positioning by dimension B. Position the non-right angle elbow part in the X and Y directions according to the outer width (dimensional C) of the non-right angle elbow part. Place one end of the non-right angle elbow part between the two second limiting parts 6 and abut its end against the side of the first limiting part 1 facing the second limiting part 6. After clamping, fasten the opening of the fixing part 7 onto the non-right angle elbow part. Then fix the connecting flanges at both ends of the fixing part 7 to the top of the second limiting part 6 by the connecting bolt assembly 4. Use the fixing part 7 to press the part tight.

[0064] At this point, the outer circle and inner hole of the non-right-angle elbow part at the end parallel to the seat 1 can be machined.

[0065] After this process is completed, loosen the connecting flange 5 at one end of the fixing part 7, rotate the fixing part 7 counterclockwise, and take out the non-right angle elbow part. Turn the part around so that the unprocessed end is reinstalled in the device in the manner described above. Rotate the fixing part 7 clockwise and tighten the connecting bolt assembly 4. Then, follow the turning method described above to complete the turning of the other outer circle and inner hole of the part.

Claims

1. A clamp for elbow parts, characterized in that, Including the base; One end of the base is provided with a first limiting part, and the other end of the base is provided with a second limiting part; The first limiting part and the second limiting part are respectively installed on the same side of the base; There are two second limiting parts, which are located on opposite sides of the base body, and a fixing member is provided on the top of the second limiting part; The fixing member is detachably connected to the top of the second limiting part, and forms a clamping cavity for the elbow part with the second limiting part and the seat body; The side of the clamping cavity facing the base and the side facing away from the base are the contact surfaces that respectively match the elbow parts.

2. The elbow part fixture according to claim 1, characterized in that, The side of the seat facing the elbow part matches the contact surface of the elbow part.

3. The elbow part fixture according to claim 1, characterized in that, The distance between the two second limiting parts matches the width of the elbow part.

4. A clamping fixture for elbow parts according to claim 1, characterized in that, The distance between the second limiting part and the first limiting part matches the length of the elbow part.

5. A clamping fixture for elbow parts according to claim 1, characterized in that, The fastener has an overall U-shaped structure with the opening facing downwards. Both ends of the fastener are detachably connected to the tops of the two second limiting parts, and the inner width of the fastener matches the distance between the two second limiting parts.

6. A clamping fixture for elbow parts according to claim 5, characterized in that, The upper surface of the second limiting part matches the contact surface of the elbow part; The fastener has connecting flanges extending outward from both ends in opposite directions. The connecting flange matches the upper surface of the second limiting part, and the connecting flange is detachably connected to the top of the second limiting part.

7. A clamping fixture for elbow parts according to claim 1, characterized in that, The seat body faces away from the first limiting part and A connecting part is provided on one side of the second limiting part; The connecting part is vertically connected to the center of the base.

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