Machining clamp for forge piece

Abstract

The utility model discloses a forge piece machining clamp which comprises a clamping assembly, a clamping assembly and a clamping assembly. The rotary driving part is used for being connected with the clamping assembly and can drive the clamping assembly to rotate; the clamping assembly comprises a rotating driving part and a rack, the rotating driving part is connected with the rack, the rack is further provided with a rotating limiting structure, the rotating limiting structure comprises a mounting frame fixedly connected with the rack, and the mounting frame is arranged in the circumferential direction of the clamping assembly in a surrounding mode; an elastic piece is further arranged on the side, close to the clamping assembly, of the mounting frame, and the section of the elastic piece is in a wave shape in the rotating direction of the clamping assembly. The clamping assembly is provided with a limiting piece used for being matched with the elastic piece. When the rotary driving piece drives the clamping assembly to rotate, the limiting piece can be separated from the elastic piece and elastically matched with the wavy face of the elastic piece. According to the technical scheme, the maintenance cost is reduced, and rotary positioning of the clamp is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forging auxiliary equipment, in particular to a processing fixture for forgings. Background Art

[0002] In the forging manufacturing industry, forgings in shapes such as shafts, rings, and gears are widely used in automotive manufacturing, heavy machinery, and other fields. These forgings require the use of fixtures for transfer, steering, or clamping during heat treatment, machining, and surface treatment processes.

[0003] Traditional fixture design often relies on manual positioning or sensor fixation. However, both methods have drawbacks when applied to forgings. First, manual positioning places excessive strain on the craftsman. Second, sensor positioning is susceptible to damage and failure due to the high temperatures of the forgings, leading to high maintenance costs for the forging fixtures. Therefore, designing a suitable positioning method for forging fixtures during operation is a pressing technical challenge for those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a processing fixture for forgings, aiming to achieve the rotation positioning of the fixture on the basis of reducing maintenance costs.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A machining fixture for forgings, comprising:

[0007] Clamping assembly for securing forgings;

[0008] a rotary drive member, configured to be connected to the clamping assembly and capable of driving the clamping assembly to rotate; and

[0009] The frame, the rotary drive member is connected to the frame, the frame is further provided with a rotation limiting structure, the rotation limiting structure includes a mounting frame fixedly connected to the frame, the mounting frame is arranged to surround the circumference of the clamping assembly; the mounting frame is further provided with a spring piece on a side close to the clamping assembly, and the cross-section of the spring piece is wavy along the rotation direction of the clamping assembly;

[0010] Wherein, the clamping assembly is provided with a limiting member for cooperating with the spring sheet; when the rotary drive member drives the clamping assembly to rotate, the limiting member can be separated from the spring sheet and elastically cooperate with the wavy surface of the spring sheet.

[0011] In one embodiment, the spring piece with a wavy cross-section includes at least a crest portion and a trough portion, the trough portion of the spring piece is fixedly connected to the mounting frame, and the crest portion is arranged toward the limiting direction of the limiting member.

[0012] In one embodiment, the elastic piece having a wavy cross-section includes at least two crest portions, and the crest portions are symmetrically arranged relative to the trough portion.

[0013] In one embodiment, the installation frame is annular, and there are a plurality of elastic sheets, which are arranged at equal intervals close to the clamping assembly.

[0014] In one embodiment, the mounting frame is a rectangular ring, and the axial angle between at least two of the elastic pieces and the clamping assembly is 90 degrees.

[0015] In one embodiment, the clamping assembly includes two sets of clamping jaws, a drive cylinder, and a first hinged member and a second hinged member rotatably connected to a push rod end of the drive cylinder;

[0016] The limiting member is fixedly connected to the driving cylinder, and the limiting member is hinged to the root of the clamping arm of the clamping jaw; the first hinged member is hinged to the clamping arm on one side of the two groups of clamping jaws, and the second hinged member is hinged to the clamping arm on the other side of the two groups of clamping jaws.

[0017] In one embodiment, a linear drive member is further included; the linear drive member is fixedly connected to the frame, and the linear drive member is used to drive the rotary drive member to move.

[0018] In one embodiment, the frame includes a Y-axis bracket and a Z-axis bracket, the linear drive motor is fixedly connected to the Y-axis bracket, the Y-axis bracket is connected to the Z-axis bracket, and the height of the Y-axis bracket relative to the Z-axis bracket can be adjusted.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The technical solution of the present utility model realizes the positioning of the clamping assembly during the rotation process by setting a rotational limiting structure. Specifically, in the process of the rotating driving member driving the clamping assembly to rotate, the limiting member on the clamping assembly and the rotational limiting structure can elastically limit and cooperate. More specifically, the rotational limiting structure includes a mounting frame and a spring plate, the mounting frame is arranged to be enclosed in the circumference of the clamping assembly, the spring plate is arranged on the inner side of the mounting frame, and the cross-section of the spring plate is wavy along the rotation direction of the clamping assembly, so that the specific arrangement of the spring plate can make the limiting member contact the spring plate during the rotation process of the clamping assembly, and can generate resistance relative to the rotation direction of the clamping assembly relative to the rotation direction of the clamping assembly, thereby realizing reliable positioning of the clamping assembly during the rotation process.

[0021] It should also be noted that the rotating drive member can be a drive motor. In the process of the rotating drive member driving the clamping assembly to rotate, the drive motor can control the clamping assembly to rotate to a preset angle. However, the usual drive motor is prone to cumulative errors during the rotation control process. Therefore, a spring clip is set at the preset angle position of the clamping assembly. The spring clip can generate elastic resistance, thereby limiting the clamping assembly to stay at the preset angle position, thereby realizing the rotational positioning of the clamping assembly, and the rotational limiting structure is mainly realized by the spring clip with a wavy cross-section. Therefore, compared with the use of sensor limitation, the rotational limiting structure reduces the maintenance cost of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0024] Figure 1 This is a structural diagram of an embodiment of a machining fixture for forgings of the present invention;

[0025] Figure 2 for Figure 1 AA section view in;

[0026] Figure 3 This is a structural diagram of another embodiment of the present utility model;

[0027] Illustration: 100, machining fixture for forgings;

[0028] 110. Clamping assembly; 111. Limiting member; 112. Clamping claw; 1121. Clamping arm; 113. First hinge; 114. Second hinge; 115. Driving cylinder;

[0029] 120, rotary drive member; 130, frame; 131, Y-axis bracket; 132, Z-axis bracket;

[0030] 140. Rotational limiting structure; 141. Mounting frame; 142. Spring piece; 1421. Wave crest portion; 1422. Wave trough portion; 150. Linear drive member. DETAILED DESCRIPTION

[0031] In order to make the technical objectives, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] An embodiment of the present invention provides a machining fixture 100 for forgings.

[0035] See also Figure 1 、 Figure 2 and Figure 3 In one embodiment of the present invention, the forging processing fixture 100 includes:

[0036] a clamping assembly 110 for securing the forging;

[0037] a rotary drive member 120, configured to be connected to the clamping assembly 110 and capable of driving the clamping assembly 110 to rotate; and

[0038] The frame 130, the rotary drive member 120 is connected to the frame 130, and the frame 130 is further provided with a rotation limiting structure 140. The rotation limiting structure 140 includes a mounting frame 141 fixedly connected to the frame 130, and the mounting frame 141 is arranged to surround the circumference of the clamping assembly 110; the mounting frame 141 is further provided with a spring 142 on a side close to the clamping assembly 110, and the cross-section of the spring 142 is wavy along the rotation direction of the clamping assembly 110;

[0039] In which, the clamping assembly 110 is provided with a limit member 111 for cooperating with the spring piece 142; when the rotating drive member 120 drives the clamping assembly 110 to rotate, the limit member 111 can be separated from the spring piece 142 and elastically cooperate with the wavy surface of the spring piece 142.

[0040] It is understandable that the technical solution of the present invention realizes the positioning of the clamping assembly 110 during the rotation process by setting a rotation limiting structure 140. Specifically, when the rotation drive member 120 drives the clamping assembly 110 to rotate, the limiting member 111 on the clamping assembly 110 and the rotation limiting structure 140 can be elastically limited and matched. More specifically, the rotation limiting structure 140 includes a mounting frame 141 and a spring 142, wherein the mounting frame 141 is enclosed and arranged in the circumference of the clamping assembly 110, and the spring 142 is arranged on the inner side of the mounting frame 141, and the cross-section of the spring 142 is wavy along the rotation direction of the clamping assembly 110, so that the specific arrangement of the spring 142 can enable the limiting member 111 to generate resistance relative to the rotation direction of the clamping assembly 110 when it contacts the spring 142 during the rotation process of the clamping assembly 110, thereby realizing the reliable positioning of the clamping assembly 110 during the rotation process.

[0041] It should also be noted that the rotating drive member 120 can be a driving motor. In the process of the rotating drive member 120 driving the clamping assembly 110 to rotate, the driving motor can control the clamping assembly 110 to rotate to a preset angle. However, a conventional driving motor is prone to cumulative errors during the rotation control process. Therefore, a spring piece 142 is provided at the preset angle position of the clamping assembly 110. The spring piece 142 can generate elastic resistance, thereby limiting the clamping assembly 110 to stay at the preset angle position, thereby realizing the rotational positioning of the clamping assembly 110, and the rotation limiting structure 140 is mainly realized by the spring piece 142 with a wavy cross-section. Therefore, compared with the use of sensor limitation, the rotation limiting structure 140 reduces the maintenance cost of the clamp.

[0042] It can also be understood that the provision of the elastic piece 142 can reduce the error accumulation of the rotary drive member 120 .

[0043] Please continue reading Figure 1 and Figure 2 In a specific embodiment of the present invention, the spring piece 142 with a wavy cross-section includes at least a crest portion 1421 and a trough portion 1422. The trough portion 1422 of the spring piece 142 is fixedly connected to the mounting frame 141, and the crest portion 1421 is arranged toward the limiting direction of the limiting member 111.

[0044] It is understood that when the stopper 111 on the clamping assembly 110 contacts the trough 1422 of the spring 142, the clamping assembly 110 generates elastic resistance in the opposite direction of its own rotation, thereby preventing the clamping assembly 110 from rotating due to rotational inertia. Furthermore, the crest 1421 is positioned in the direction of the stopper 111, which ensures more stable deployment of the spring 142, thereby improving the stability of the clamp operation.

[0045] In a specific embodiment, Figure 2 As shown, the elastic piece 142 with a wavy cross section includes at least two crest portions 1421 , and the crest portions 1421 are symmetrically arranged relative to the trough portions 1422 .

[0046] It is understandable that the crest portion 1421 is symmetrically arranged relative to the trough portion 1422 and can be elastically limited in two directions (counterclockwise rotation direction and clockwise rotation direction), thereby improving the rotation flexibility of the clamping assembly 110.

[0047] Optionally, when the limiting member 111 is stably matched with the elastic member, the limiting member 111 is located above the trough portion 1422 and abuts against two adjacent peak portions 1421 .

[0048] It should also be noted that the cross-section of the spring piece 142 is wavy, and the trough portion 1422 of the spring piece 142 is half of the thickness dimension of the spring piece 142 on the side close to the mounting frame 141, and the peak portion 1421 is half of the thickness dimension of the spring piece 142 on the side away from the mounting frame 141.

[0049] Optionally, the spring piece 142 has only one trough portion 1422 and two crest portions 1421, and the two crest portions 1421 are located on both sides of the trough portion 1422. It is understandable that when the spring piece 142 has only one trough portion 1422 and two crest portions 1421, the portion in contact with the mounting frame 141 is only the trough portion 1422, and the bottom end of the trough portion 1422 also mainly serves as a support point for the deformation of the spring piece 142. Therefore, providing the spring piece 142 with a smaller number of trough portions 1422 can reduce the frictional resistance formed between the trough portion 1422 and the mounting frame 141, and the provision of only one trough portion 1422 makes it easier for the two crest portions 1421 to deform, thereby improving the stability of the clamp during the rotation limiting process.

[0050] Please refer to Figure 1 and Figure 2 In a specific embodiment, the mounting frame 141 is annular, and there are multiple spring pieces 142 , which are arranged at equal intervals close to the clamping assembly 110 .

[0051] It can be understood that multiple spring pieces 142 are arranged at equal intervals near the clamping assembly 110, that is, the distance between any spring piece 142 and the rotation axis of the clamping assembly 110 is equal, and the limiting member 111 can elastically cooperate with any spring piece 142 when passing through it.

[0052] In a specific embodiment, the installation frame 141 is a rectangular ring, and the axial angle of at least two of the elastic pieces 142 relative to the clamping assembly 110 is 90 degrees.

[0053] It is understandable that when clamping or transporting forgings, it is usually only necessary to rotate 90 degrees or flip 180 degrees. Therefore, the mounting frame 141 is set to a rectangular ring, and the axial angle of at least two of the springs 142 relative to the clamping assembly 110 is 90 degrees, which can meet the functional requirements of rotating to a vertical angle or flipping.

[0054] Furthermore, if Figure 2 As shown, when the mounting frame 141 is a rectangular ring, there are three spring pieces 142, and at least two of the three spring pieces 142 are symmetrically and horizontally arranged. It is understood that when the clamping assembly 110 is fixed in a horizontal position, it is easily affected by the center of gravity of the forging on the clamping assembly 110, causing the clamping assembly 110 to twist. Therefore, two limiters 111 are provided on both sides of the clamping assembly 110, which elastically limit the position of the spring pieces 142 at the same time, thereby improving the reliability of the horizontal limit of the clamping assembly 110.

[0055] See also Figure 1 、 Figure 2 and Figure 3 In another embodiment of the present invention, the clamping assembly 110 includes two sets of clamping jaws 112, a driving cylinder 115, and a first hinge 113 and a second hinge 114 rotatably connected to the push rod end of the driving cylinder 115;

[0056] The limiting member 111 is fixedly connected to the driving cylinder 115, and the limiting member 111 is hinged to the root of the clamping arm 1121 of the clamping jaw 112; the first hinged member 113 is hinged to the clamping arm 1121 on one side of the two groups of clamping jaws 112, and the second hinged member 114 is hinged to the clamping arm 1121 on the other side of the two groups of clamping jaws 112.

[0057] It should be noted that each set of jaws 112 includes two symmetrically arranged clamping arms 1121 capable of cooperating to grasp an object. The stopper 111 is hinged to the base of each clamping arm 1121. The first hinge 113 is hinged to the two clamping arms 1121 on the same side, and the second hinge 114 is hinged to the two clamping arms 1121 on the other side. When grasping forgings, the arrangement of the two sets of jaws 112 achieves multi-point gripping of the forging, improving the stability of the clamp.

[0058] It can also be understood that using a single driving cylinder 115 to drive the clamping arms 1121 on both sides for clamping through the first hinge and the second junction respectively reduces the weight of the clamping assembly 110 and saves the production cost of the clamp compared to using a dual-cylinder drive.

[0059] See also Figure 1 or Figure 3 , further comprising a linear drive member 150; the linear drive member 150 is fixedly connected to the frame 130, and the linear drive member 150 is used to drive the rotary drive member 120 to move.

[0060] It is understandable that the provision of the linear drive member 150 enables the clamping assembly 110 to drive the forging to move horizontally, thereby improving the flexibility of the clamp.

[0061] Optionally, when the forging requires only one displacement, the linear drive member 150 is a pneumatic push rod; when the forging requires multi-point displacement, the linear drive member 150 is an electric push rod.

[0062] In one embodiment, the frame 130 includes a Y-axis bracket 131 and a Z-axis bracket 132, the linear drive motor is fixedly connected to the Y-axis bracket 131, the Y-axis bracket 131 is connected to the Z-axis bracket 132, and the height of the Y-axis bracket 131 relative to the Z-axis bracket 132 can be adjusted.

[0063] It is understandable that the height of the Y-axis bracket 131 relative to the Z-axis bracket 132 can be adjusted, which can make the fixture suitable for forgings of different sizes and improve the applicability of the fixture.

[0064] Optionally, the height adjustment method of the Y-axis bracket 131 relative to the Z-axis bracket 132 can be achieved by providing multiple adjustment holes for bolt fixing adjustment, or by using a screw motor for height adjustment. In the embodiment of the present invention, the specific adjustment method is not limited, and those skilled in the art can flexibly select it according to the specific application scenario.

[0065] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A forging processing fixture, characterized in that: include: Clamping assembly for securing forgings; A rotary drive member, used to be connected to the clamping assembly and capable of driving the clamping assembly to rotate; as well as, The frame, the rotary drive member is connected to the frame, the frame is further provided with a rotation limiting structure, the rotation limiting structure includes a mounting frame fixedly connected to the frame, the mounting frame is arranged to surround the circumference of the clamping assembly; the mounting frame is further provided with a spring piece on a side close to the clamping assembly, and the cross-section of the spring piece is wavy along the rotation direction of the clamping assembly; Wherein, the clamping assembly is provided with a limiting member for cooperating with the spring sheet; when the rotary drive member drives the clamping assembly to rotate, the limiting member can be separated from the spring sheet and elastically cooperate with the wavy surface of the spring sheet.

2. The forging processing fixture according to claim 1, characterized in that: The spring piece with a wavy cross section includes at least a crest portion and a trough portion. The trough portion of the spring piece is fixedly connected to the mounting frame, and the crest portion is arranged toward the limiting direction of the limiting member.

3. The forging processing fixture according to claim 2, characterized in that: The spring piece with a wavy cross section includes at least two wave crests, and the wave crests are symmetrically arranged relative to the wave troughs.

4. The forging machining fixture according to any one of claims 1 to 3, characterized in that: The installation frame is annular, and there are a plurality of spring sheets, which are arranged at equal intervals close to the clamping assembly.

5. The forging machining fixture according to claim 4, characterized in that: The installation frame is a rectangular ring, and the axial angle between at least two of the elastic pieces and the clamping assembly is 90 degrees.

6. The forging machining fixture according to claim 4, characterized in that: The clamping assembly includes two sets of clamping jaws, a driving cylinder, and a first hinged member and a second hinged member rotatably connected to the push rod end of the driving cylinder; The limiting member is fixedly connected to the driving cylinder, and the limiting member is hinged to the root of the clamping arm of the clamping jaw; the first hinged member is hinged to the clamping arm on one side of the two groups of clamping jaws, and the second hinged member is hinged to the clamping arm on the other side of the two groups of clamping jaws.

7. The forging machining fixture according to claim 4, characterized in that: Also included is a linear drive member; The linear drive member is fixedly connected to the frame, and is used to drive the rotary drive member to move.

8. The forging machining fixture according to claim 4, characterized in that: The frame includes a Y-axis bracket and a Z-axis bracket, the linear drive motor is fixedly connected to the Y-axis bracket, the Y-axis bracket is connected to the Z-axis bracket, and the height of the Y-axis bracket relative to the Z-axis bracket can be adjusted.

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