Reversible machining clamp

Abstract

The utility model discloses a machining clamp capable of reversing. The machining clamp comprises a connecting base, a first clamping assembly and a second clamping assembly. A material groove is formed in one end face of the connecting base, two opposite containing grooves are further formed in the material groove, the first clamping assembly is rotatably arranged in one containing groove, and the second clamping assembly is rotatably and slidably arranged in the other containing groove. The first clamping assembly and the second clamping assembly are matched to clamp the middle position of a workpiece, so that one end of the workpiece is exposed to the outer side of the connecting base, and the other end of the workpiece is arranged in the material groove. After the exposed end of the workpiece is machined, the workpiece is driven to rotate, so that the other end of the workpiece is exposed out of the outer side of the connecting base, and subsequent machining is conducted. Therefore, a workpiece with two end faces needing to be machined can be clamped at a time, so that the working procedure time for replacing the end faces of the workpiece is saved, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tooling fixtures, specifically a reversible machining fixture. Background Technology

[0002] For the design of fixtures in the CNC machining industry, the existing clamping methods are basically: outer diameter clamping, inner diameter support, and other special fixtures designed by the machining center for the outer contour of the product. These fixtures can only process one end face and inner hole at a time. When processing another face, it is necessary to change other fixtures or perform a second clamping.

[0003] When processing products with two ends, using traditional fixtures adds an extra step and the management of semi-finished products, thus increasing time, manpower, and management costs. Moreover, it also carries significant risks to quality. For example, if the two ends are processed by clamping twice, and if the clamping is not in place or if there are cutting chips on the clamping and positioning surfaces, the coaxiality and flatness of the two ends will exceed the tolerance, which will lead to the risk of the coaxiality of the two ends being compromised. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a reversible machining fixture. For workpieces that need to be machined on two end faces, a single clamping is sufficient, saving the time of changing the end face of the workpiece and improving machining efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reversible machining fixture includes a connecting seat, a first clamping assembly, and a second clamping assembly; one end face of the connecting seat is provided with a material groove, and two oppositely arranged receiving grooves are also provided in the material groove; the first clamping assembly is rotatably disposed in one of the receiving grooves, and the second clamping assembly is rotatably and slidably disposed in the other receiving groove.

[0007] Furthermore, the first clamping assembly includes a first clamping block and a steering cylinder, the steering cylinder being disposed within a corresponding receiving groove, and the first clamping block being disposed at the output end of the steering cylinder.

[0008] Furthermore, the second clamping assembly includes a second clamping block and a telescopic cylinder, the telescopic cylinder being disposed within the corresponding receiving groove, and the second clamping block being disposed at the output end of the telescopic cylinder.

[0009] Furthermore, the second clamping assembly also includes a bearing, which is sleeved on the outside of the second clamping block and slidably disposed within the corresponding receiving groove.

[0010] Furthermore, the second clamping assembly also includes a sealing ring, and the second clamping block has a fixing groove, on which the sealing ring is disposed.

[0011] Furthermore, it also includes two cover plates, and the connecting seat has two mounting grooves. The shape of the mounting grooves is adapted to the cover plates, and the two mounting grooves are respectively connected to the bottom of the two receiving grooves. The cover plates have a first mounting hole and a second mounting hole, and the connecting seat has a threaded hole adapted to the second mounting hole.

[0012] Furthermore, the connecting seat is also provided with two through slots, one side of which is connected to the corresponding receiving slot, and the other side is connected to the outside of the connecting seat.

[0013] Furthermore, the connecting seat also has a through hole that extends radially and connects to the material trough.

[0014] Compared with the prior art, this utility model has the following advantages: Through the cooperation of the first clamping component and the second clamping component, the middle position of the workpiece is clamped, so that one end of the workpiece is exposed outside the connecting seat, and the other end is placed in the material groove; after the exposed end of the workpiece is processed, the other end of the workpiece is exposed outside the connecting seat by driving the workpiece to perform subsequent processing. Thus, for workpieces that require processing of both end faces, only one clamping is needed, saving the time of changing workpiece end faces and improving processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the machining fixture in this utility model;

[0017] Figure 2 This is a cross-sectional view of the machining fixture in this utility model;

[0018] Figure 3 This is a perspective view of the connector in this utility model;

[0019] Explanation of icon numbers:

[0020] 1-Connecting seat; 101-Material trough; 102-Receiving trough; 103-Mounting trough; 105-Through groove; 106-Through hole;

[0021] 2-First clamping assembly; 21-First clamping block; 22-Steering cylinder;

[0022] 3-Second clamping assembly; 31-Second clamping block; 32-Telescopic cylinder; 33-Bearing; 34-Sealing ring;

[0023] 4-Cover plate. Detailed Implementation

[0024] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, it will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that the features shown in the figures are not necessarily drawn to scale. Furthermore, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," "right," "front," and "back" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] like Figure 1-2 As shown, this embodiment provides a reversible machining fixture, which is installed on a machining equipment for clamping and positioning a workpiece. The machining fixture includes a connecting seat 1, a first clamping component 2, and a second clamping component 3. One end face of the connecting seat 1 has a material groove 101 centered on its axis. The material groove 101 is used to accommodate the workpiece and provide space for the workpiece to move. Two oppositely arranged receiving grooves 102 are also provided in the material groove 101. The first clamping component 2 is rotatably disposed in one of the receiving grooves 102. The first clamping component 2 is used to provide reference positioning and to provide rotational driving force. The second clamping component 3 is rotatably and slidably disposed in the other receiving groove 102. The second clamping component is used to provide clamping driving force and can rotate with the first clamping component 2.

[0027] The first clamping assembly 2 and the second clamping assembly 3 work together to clamp the middle position of the workpiece, so that one end of the workpiece is exposed outside the connecting seat 1 and the other end is placed in the material groove 101. After the exposed end of the workpiece is processed, the workpiece is driven to rotate so that the other end of the workpiece is exposed outside the connecting seat 1 for subsequent processing. In this way, for workpieces that need to be processed on both end faces, only one clamping is required, saving the processing time of changing the end face of the workpiece and improving processing efficiency.

[0028] like Figure 2 As shown, in a preferred embodiment, the first clamping assembly 2 includes a first clamping block 21 and a steering cylinder 22. The steering cylinder 22 is located at the bottom of the corresponding receiving groove 102, and the first clamping block 21 is located at the output end of the steering cylinder 22.

[0029] like Figure 2 As shown, in a preferred embodiment, the second clamping assembly 3 includes a second clamping block 31 and a telescopic cylinder 32. The telescopic cylinder 32 is located at the bottom of the corresponding receiving groove 102, and the second clamping block 31 is located at the output end of the telescopic cylinder 32. It should be noted that the telescopic rod of this type of telescopic cylinder 32 can rotate axially relative to the cylinder body, thus enabling the second clamping block 31 to rotate with the first clamping block 21.

[0030] like Figure 2 As shown, the second clamping assembly 3 further includes a bearing 33, which is sleeved on the outside of the second clamping block 31 and slidably disposed within the corresponding receiving groove 102 to ensure the coaxiality of the first clamping block 21 and the second clamping block 31, thus ensuring the stability of the second clamping block 31 during movement. Of course, the first clamping assembly 2 can also be provided with a bearing 33 in the same way.

[0031] like Figure 2 As shown, in this embodiment, the two receiving grooves 102 are arranged vertically, with the second clamping component 3 located below. Therefore, the second clamping component 3 also includes a sealing ring 34. The second clamping block 31 has a fixing groove, and the sealing ring 34 is disposed on the fixing groove to prevent scrap or processing fluid from seeping into the receiving groove 102. Of course, the first clamping component 2 may also be provided with a sealing ring 34.

[0032] like Figure 1-3As shown, in a preferred embodiment, the machining fixture further includes two cover plates 4. The connecting seat 1 has two mounting grooves 103, the shape of which is adapted to the cover plate 4. The two mounting grooves 103 are respectively connected to the bottom of the two corresponding receiving grooves 102, providing space for the loading and unloading of the hydraulic cylinders. The cover plate 4 has a first mounting hole adapted to the corresponding hydraulic cylinder, and the corresponding hydraulic cylinder can be locked onto the cover plate 4 with bolts, thus providing locking and positioning for the corresponding hydraulic cylinder. The cover plate 4 also has a second mounting hole, and the connecting seat 1 has a threaded hole adapted to the second mounting hole, and the cover plate 4 can be locked and fixed onto the connecting seat 1 with bolts.

[0033] like Figure 1-3 As shown, the connecting seat 1 is further provided with two through grooves 105. One side of the two through grooves 105 is connected to the corresponding receiving groove 102, and the other side is connected to the outside of the connecting seat 1. The through grooves 105 are used for the pipeline arrangement corresponding to the oil cylinder.

[0034] like Figure 1-3 As shown, the connecting seat 1 further includes a through hole 106, which extends radially and connects to the material trough 101. The through hole 106 can reduce the weight of the connecting seat 1 and can also be used for chip removal.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reversible machining fixture, characterized in that, It includes a connecting seat (1), a first clamping assembly (2) and a second clamping assembly (3); one end face of the connecting seat (1) is provided with a material groove (101), and two oppositely arranged receiving grooves (102) are also provided in the material groove (101); the first clamping assembly (2) is rotatably disposed in one of the receiving grooves (102), and the second clamping assembly (3) is rotatably and slidably disposed in the other receiving groove (102).

2. The reversible machining fixture according to claim 1, characterized in that, The first clamping assembly (2) includes a first clamping block (21) and a steering cylinder (22), the steering cylinder (22) being disposed in the corresponding receiving groove (102), and the first clamping block (21) being disposed at the output end of the steering cylinder (22).

3. The reversible machining fixture according to claim 1, characterized in that, The second clamping assembly (3) includes a second clamping block (31) and a telescopic cylinder (32), wherein the telescopic cylinder (32) is disposed in the corresponding receiving groove (102), and the second clamping block (31) is disposed at the output end of the telescopic cylinder (32).

4. A reversible machining fixture according to claim 3, characterized in that, The second clamping assembly (3) further includes a bearing (33), which is sleeved on the outside of the second clamping block (31) and slidably disposed in the corresponding receiving groove (102).

5. A reversible machining fixture according to claim 3, characterized in that, The second clamping assembly (3) further includes a sealing ring (34), and the second clamping block (31) has a fixing groove, on which the sealing ring (34) is disposed.

6. A reversible machining fixture according to claim 1, characterized in that, It also includes two cover plates (4), and the connecting seat (1) has two mounting grooves (103). The shape of the mounting grooves (103) is adapted to the cover plate (4), and the two mounting grooves (103) are respectively connected to the bottom of the two corresponding receiving grooves (102); the cover plate (4) has a first mounting hole and a second mounting hole, and the connecting seat (1) has a threaded hole adapted to the second mounting hole.

7. A reversible machining fixture according to claim 1, characterized in that, The connecting seat (1) is also provided with two through slots (105), one side of which is connected to the corresponding receiving slot (102), and the other side is connected to the outside of the connecting seat (1).

8. A reversible machining fixture according to claim 1, characterized in that, The connecting seat (1) is also provided with a through hole (106), which extends radially and connects to the material tank (101).

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