Clamping tool for vortex machining of gray iron piece

Abstract

The utility model discloses a gray iron piece vortex machining clamping tool, which comprises a first clamping tool and a second clamping tool, the first clamping tool comprises a first vertical chuck, a first clamping jaw, a first mounting plate and a first backer, and the second clamping tool comprises a second vertical chuck, a second clamping jaw, a second mounting plate and a second backer. A working procedure workpiece is placed on the first backer, the clamping rod is pressed into the clamping groove downwards, the first clamping jaw applies pressure towards the inclined lower portion to the working procedure workpiece to fix the working procedure workpiece, after front face machining of the working procedure workpiece is finished, the working procedure workpiece is transferred and placed on the second backer, the position of the second clamping jaw is adjusted, and the working procedure workpiece is clamped by the second clamping jaw. The overall structure and operation are simple, the tool remodeling cost is low, the remodeling time is short, the machining procedures can be simplified conveniently, the size precision of the procedure workpieces is stable, and the equipment input cost and the labor cost are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner scroll compressor processing technology, specifically a clamping fixture for scroll machining of gray iron parts. Background Technology

[0002] In current scroll compressor parts machining, especially for gray iron scroll machining, traditional processes typically employ multiple steps for clamping and machining. For example, turning is performed first, followed by hole machining and profile machining. This traditional clamping method not only increases the number of changes during machining, requiring repeated adjustments and calibrations of the workpiece position between each step, thus prolonging the overall machining time, but also increases the possibility of accumulated errors due to multiple clamping operations, affecting the dimensional accuracy of the final product. Therefore, existing clamping methods can no longer meet the requirements of modern manufacturing for high efficiency, low cost, and high quality, and a more reasonable clamping fixture is urgently needed to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a clamping fixture for vortex machining of gray iron parts. By optimizing the clamping and machining methods, the machining process is simplified and the product dimensional accuracy is stable, thus solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A clamping fixture for vortex machining of gray iron parts includes a first clamping fixture and a second clamping fixture. The first clamping fixture includes a first vertical chuck, a first jaw, a first mounting plate and a first backing plate. The first mounting plate is bolted to the upper surface of the first vertical chuck, the first jaw is engaged with the first vertical chuck by a clamping rod, and the first backing plate is bolted to the first mounting plate.

[0006] The second clamping fixture includes a second vertical chuck, a second jaw, a second mounting plate, and a second backing. The second mounting plate is bolted to the upper surface of the second vertical chuck, the second jaw is bolted to the second vertical chuck, and the second backing is bolted to the second mounting plate.

[0007] Preferably, the first vertical clamping plate has three slots arranged in a rotationally symmetrical manner. The lower part of the slot is inclined towards the axis of the first vertical clamping plate, and the slot is adapted to the clamping rod.

[0008] Preferably, the side of the first mounting plate is provided with a first groove for the first gripper to pass through, and the side of the second mounting plate is provided with a second groove for the second gripper to pass through.

[0009] Preferably, a third gripper is also installed on the top surface of the first mounting plate. There are two third grippers, which are located on both sides of one of the first grippers respectively. A movable locking block is pivotally connected to the top of the third gripper.

[0010] Preferably, the surface of the second vertical clamping plate is provided with a slider, there are three sliders in total and they are distributed in a rotationally symmetrical manner. The sliders are provided with a sliding groove. The bottom of the second jaw is provided with a locking block. The second jaw is locked with the sliding groove through the locking block and is slidably connected to the slider. The middle part of the second jaw is provided with a screw hole in the longitudinal direction.

[0011] Preferably, one of the second mounting plates has a locating pin on one side, and the locating pin is fixed to the second mounting plate by bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention places the workpiece on the first support, presses the clamping rod downward into the clamping groove, and applies downward pressure to the workpiece with the first clamping jaw. After fixing, the rotation angle of the movable clamping block is adjusted so that it abuts against the side surface of the workpiece for further fixation. After the front side of the workpiece is processed, the workpiece is transferred and placed on the second support. At the same time, the positioning pin is inserted into the corresponding positioning hole of the workpiece, and the position of the second clamping jaw is adjusted to clamp the workpiece. Finally, the back side of the workpiece is processed. The overall structure and operation are simple, the tooling changeover cost is low, the changeover time is short, and it is easy to simplify the processing steps. Moreover, the dimensional accuracy of the workpiece is stable, effectively reducing equipment investment costs and labor costs. Attached Figure Description

[0014] Figure 1 This is a diagram showing the relationship between the first clamping fixture and the workpiece in the process of this utility model;

[0015] Figure 2 This is an isometric drawing of the first clamping fixture of this utility model;

[0016] Figure 3 This is an exploded view of the first clamping fixture of this utility model;

[0017] Figure 4 This is a diagram showing the relationship between the second clamping fixture and the workpiece in the process according to this utility model;

[0018] Figure 5 This is an exploded view of the second clamping fixture of this utility model;

[0019] Figure 6 This is a top view of the second clamping fixture of this utility model.

[0020] In the diagram: 1. First clamping fixture; 11. First vertical chuck; 111. Slot; 12. First jaw; 121. Clamping rod; 13. First mounting plate; 131. First groove; 14. First support; 15. Third jaw; 151. Movable clamping block; 2. Second clamping fixture; 21. Second vertical chuck; 211. Slider; 212. Slide groove; 22. Second jaw; 23. Second mounting plate; 231. Second groove; 24. Second support; 25. Locating pin; 3. Workpiece in operation. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the issues in existing technologies where repeated adjustments and calibrations of the workpiece position are required between each process, thus extending the overall processing time and increasing the likelihood of accumulated errors due to multiple clamping operations, thereby affecting the dimensional accuracy of the final product, the following technical solution is proposed:

[0023] A clamping fixture for vortex machining of gray iron parts includes a first clamping fixture 1 and a second clamping fixture 2. The first clamping fixture 1 is used to clamp the front side of the workpiece 3 in the process, and the second clamping fixture 2 is used to clamp the back side of the workpiece 3 in the process.

[0024] Please see Figure 1-3 The first clamping fixture 1 includes a first vertical chuck 11, a first jaw 12, a first mounting plate 13, and a first backrest 14. The first mounting plate 13 is bolted to the upper surface of the first vertical chuck 11. The side of the first mounting plate 13 has a first groove 131 for the first jaw 12 to pass through. The first mounting plate 13 serves as the base for mounting other components. The first backrest 14 is bolted to the first mounting plate 13. The first backrest 14 is used to support the outer edge of the workpiece 3 in the process.

[0025] The first vertical clamping plate 11 has three slots 111 arranged in a rotationally symmetrical manner. The lower part of the slots 111 is inclined towards the axis of the first vertical clamping plate 11. The slots 111 are adapted to the clamping rod 121. The first jaw 12 is engaged with the first vertical clamping plate 11 through the clamping rod 121. The deeper the clamping rod 121 penetrates into the slots 111, the closer the first jaw 12 is to the axis of the workpiece 3. The position and clamping force of the first jaw 12 can be adjusted according to the diameter of the workpiece 3.

[0026] Two third grippers 15 are mounted on the top surface of the first mounting plate 13, one on each side of one of the first grippers 12. A movable locking block 151 is pivotally connected to the top of each third gripper 15. After the workpiece 3 is gripped by the first gripper 12, the rotation angle of the movable locking block 151 is adjusted to make it abut against the side surface of the workpiece 3 for further fixation. The angle between the movable locking block 151 and the third gripper 15 can be fixed by tightening bolts. After the workpiece 3 is fixed, the machining center performs milling of the plane, keyway, involute curve, and drilling.

[0027] Please see Figure 4-6 The second clamping fixture 2 includes a second vertical clamping plate 21, a second jaw 22, a second mounting plate 23, and a second backrest 24. The second mounting plate 23 is bolted to the upper surface of the second vertical clamping plate 21. A second groove 231 is provided on the side of the second mounting plate 23 for the second jaw 22 to pass through.

[0028] A second support 24 is bolted onto the second mounting plate 23, and the second support 24 supports the back of the workpiece 3 in the process.

[0029] The surface of the second vertical clamping plate 21 is provided with sliders 211. There are three sliders 211 in total, which are distributed in a rotationally symmetrical manner. Slide grooves 212 are provided on the sliders 211. The bottom of the second gripper 22 is provided with a snap-fit ​​block. The second gripper 22 is snapped into the slide groove 212 through the snap-fit ​​block and slidably connected to the slider 211. The relative position of the second gripper 22 is adjusted according to the diameter of the workpiece 3 in the process. A screw hole is provided in the middle of the second gripper 22 longitudinally. After the position is adjusted, the second gripper 22 is abutted against the slider 211 by tightening the bolt downwards, thereby fixing the second gripper 22.

[0030] One of the second backing plates 24 has a positioning pin 25 on one side. The positioning pin 25 is fixed to the second mounting plate 23 by bolts. The positioning pin 25 is inserted into the positioning hole corresponding to the workpiece 3 as an angular positioning reference. After the workpiece 3 is fixed, the machining center performs milling, internal hole and drilling on it.

[0031] Working principle: Place the workpiece 3 on the first support 14, press the clamping rod 121 downward into the clamping groove 111, so that the first clamping jaw 12 applies pressure to the workpiece 3 in a downward direction. After fixing, adjust the rotation angle of the movable clamping block 151 so that it abuts against the side surface of the workpiece 3 to further fix it. After the front side of the workpiece 3 is processed, transfer the workpiece 3 and place it on the second support 24. At the same time, let the positioning pin 25 pass into the corresponding positioning hole of the workpiece 3. Adjust the position of the second clamping jaw 22 to clamp the workpiece 3. Finally, process the back side of the workpiece 3.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A clamping tool for swirlling of gray iron parts, comprising a first clamping tool (1) and a second clamping tool (2), characterized in that, The first clamping tool (1) comprises a first vertical chuck (11), a first clamping jaw (12), a first mounting plate (13) and a first backer (14), the first mounting plate (13) is bolted to the upper surface of the first vertical chuck (11), the first clamping jaw (12) is clamped with the first vertical chuck (11) through a clamping rod (121), and the first mounting plate (13) is bolted with the first backer (14). The second clamping tool (2) comprises a second vertical chuck (21), a second clamping jaw (22), a second mounting plate (23) and a second backer (24), the second mounting plate (23) is bolted to the upper surface of the second vertical chuck (21), the second clamping jaw (22) is connected with the second vertical chuck (21) through a bolt, and the second mounting plate (23) is bolted with the second backer (24).

2. The clamping tool for swirUng of gray iron parts according to claim 1, characterized in that, The first vertical chuck (11) is provided with a clamping groove (111), and the clamping groove (111) is provided with three clamping grooves (111) and is distributed in a rotational symmetry, the lower part of the clamping groove (111) is inclined to the axis direction of the first vertical chuck (11), and the clamping groove (111) is matched with the clamping rod (121).

3. The clamping tool for swirUng of gray iron parts according to claim 2, characterized in that, The side of the first mounting plate (13) is provided with a first recess (131) for the first clamping jaw (12), and the side of the second mounting plate (23) is provided with a second recess (231) for the second clamping jaw (22).

4. The clamping tool for swirUng of gray iron parts according to claim 3, characterized in that, The top surface of the first mounting plate (13) is further provided with a third clamping jaw (15), and the third clamping jaw (15) is provided with two third clamping jaws (15) and is located on the two sides of one of the first clamping jaws (12), and the top of the third clamping jaw (15) is pivoted with a movable clamping block (151).

5. The clamping tool for swirUng of gray iron parts according to claim 4, characterized in that, The surface of the second vertical chuck (21) is provided with a sliding block (211), and the sliding block (211) is provided with three sliding blocks (211) and is distributed in a rotational symmetry, the sliding block (211) is provided with a sliding groove (212), the bottom of the second clamping jaw (22) is provided with a clamping block, the second clamping jaw (22) is clamped with the sliding groove (212) through the clamping block and is slidably connected with the sliding block (211), and the middle part of the second clamping jaw (22) is longitudinally provided with a threaded hole.

6. The clamping tool for swirUng of gray iron parts according to claim 5, characterized in that, One side of the second backer (24) is provided with a positioning pin (25), and the positioning pin (25) is fixed on the second mounting plate (23) through a bolt.

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