Double-station shell machining clamp

Abstract

The invention discloses a double-station shell machining clamp and a mounting method. The double-station shell machining clamp comprises a base, a pull-down type clamping mechanism, a supporting mechanism and a hydraulic mechanism. Two machining stations are arranged on the base, and each machining station is correspondingly provided with a pull-down clamping mechanism and a supporting mechanism. The hydraulic mechanism carries out coordinated control on the pull-down clamping mechanisms and the supporting mechanisms in the two machining stations. The pull-down clamping mechanism is used for tensioning the pop-rivet inserted into the shell, and the supporting mechanism is used for supporting the shell to achieve fixation. The hydraulic mechanism is arranged on the base for communication and provides power for clamping and maintaining actions of the hydraulic mechanism. The base is arranged on the machine tool tray, the positioning mechanism and the pressing mechanism are arranged according to the appearance size of the clamp for clamping, control is conducted through the hydraulic mechanism, the consistency of clamping force is guaranteed, machining precision can be better guaranteed, the product quality is improved, meanwhile, due to the double-station design, the clamping time is shortened, and the machining efficiency is improved. And the processing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fixtures, and more specifically, to a double-station shell processing fixture. Background Art

[0002] In order to adapt to the diversified market demands, the tobacco industry has followed up with the update of product types, requiring more tobacco cigarette machinery and equipment to adapt to different processing procedures; however, in the processing of tobacco machinery and equipment parts, the production and manufacturing often face special production processes. Special non-standard parts, the use of ordinary fixtures cannot meet the design accuracy requirements.

[0003] At present, such problems exist in the processing and manufacturing of special-shaped shell parts. The part needs to be clamped twice. The first clamping needs to process the two oil sealing holes on the part. The first clamping processing requirements are relatively low, but there is no reference surface for establishing coordinates. Repeated corrections are required to establish the workpiece coordinate system for easy processing. All remaining features are completed in the second clamping. The second clamping processing requirements are relatively high. The existing fixture is clamped and fixed manually, which can easily lead to uneven processing force and the parts do not meet the drawing requirements.

[0004] Therefore, there is an urgent need for a fixture that can clamp the shell, which can not only quickly position it to achieve the purpose of establishing a processing coordinate system, but also maintain uniform force during clamping and fixing, meet the requirements of the processing drawings, and finally realize multi-workpiece processing to improve processing efficiency. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a double-station shell processing fixture, which aims to significantly improve the processing efficiency and precision through the design of double-station hydraulic collaborative clamping and a positioning system that meets the precision of parts.

[0006] The present application provides a double-station shell processing fixture, and the specific technical solution is as follows, including: a base, a pull-down clamping mechanism, a support mechanism, and a hydraulic mechanism; Two processing stations are arranged on the base, and each of the processing stations is provided with the pull-down clamping mechanism and the supporting mechanism along the axial direction of the central circle pin of the shell; The hydraulic mechanism coordinates and controls the pull-down clamping mechanism and the supporting mechanism in the two processing stations; The pull-down clamping mechanism is arranged on the base, and pulls down and clamps the pull nail inserted into the process hole on the outer surface of the shell; The support mechanism can be movably arranged on the base to abut and support the outer surface of the shell; The hydraulic mechanism is arranged on the base, and is connected with the pull-down clamping mechanism and the supporting mechanism to provide power for the clamping and holding actions thereof.

[0007] Preferably, the pull-down clamping mechanisms are in three groups in number, and are distributed in a triangle of a first position, a second position, and a third position, and are arranged on the base via a mounting seat.

[0008] Preferably, the rivet is arranged in a process hole on the outer surface of the shell through a threaded connection.

[0009] Preferably, the supporting mechanism is a hydraulic supporter, which is provided with a movable supporting head to provide abutment support to the outer surface of the shell.

[0010] Preferably, the specific number is four groups, three of which are distributed according to the three-point positions of a triangle of a fourth position, a fifth position and a sixth position and are arranged on the base through a mounting seat, and the other group is arranged parallel to the base plane through a floating support.

[0011] Preferably, the hydraulic mechanism specifically includes: a non-leakage pressure-maintaining valve, a sequence valve, a non-leakage automatic coupler, an accumulator, and an oil gauge; The non-leakage pressure-maintaining valve is provided with a clamping oil supply port of the hydraulic mechanism, and the base is provided with an oil cylinder cleaning port, so as to form a complete hydraulic circuit; The accumulator, the sequence valve, the leak-free automatic connector, and the oil display gauge are arranged on the base, and are connected with the pull-down clamping mechanism and the supporting mechanism through hydraulic pipelines. The sequence valve is used to control the clamping and fixing of the shell, and the accumulator is used to keep the clamping stable.

[0012] Preferably, the base is further provided with an air path mechanism, which includes: a cleaning air supply port, an air tightness detection air supply port, and a nozzle; The airtight detection air supply port is used for the air path mechanism to confirm the clamping state of the processing station; The nozzles are arranged on the base around the periphery of the processing station for blowing and cleaning the shell after processing.

[0013] Preferably, the two processing stations are symmetrically arranged on the base.

[0014] Preferably, the base is further provided with a positioning pin hole and a bolt hole, the positioning pin hole facilitates the rough positioning of the fixture on the machine tool pallet, and the fixture is then fastened to the machine tool pallet by inserting bolts into the bolt holes.

[0015] Preferably, a lifting ring is installed on the base to facilitate the transportation and installation of the clamp.

[0016] The double-station shell processing fixture provided by the present invention is provided with a base for installing the fixture on the machine tool pallet, and a positioning mechanism and a clamping mechanism are set according to the outer dimensions of the fixture for fixed clamping. The clamping mechanism is controlled by a hydraulic mechanism to ensure the consistency of the clamping force, which can better ensure the realization of processing accuracy and improve product quality. At the same time, the double-station design reduces the clamping time and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the specific structure of a double-station shell processing clamp provided in an embodiment of the present invention; Figure 2 This is the main view of the double-station shell processing clamp structure; Figure 3 This is a top view of the concrete structure of the double-station shell processing clamp; Figure 4 This is a schematic diagram of the hydraulic mechanism oil circuit.

[0019] Reference numerals Double-station shell processing fixture: 1. Shell; 2. Base; 3. Pull-down clamping mechanism; 4. Pull rivet; 5. Support mechanism; 6. First position; 7. Second position; 8. Third position; 9. Mounting seat; 10. Support head; 11. Fourth position; 12. Fifth position; 13. Sixth position; 14. Floating support; 15. Leak-free pressure-maintaining valve; 16. Sequence valve; 17. Leak-free automatic coupler; 18. Accumulator; 19. Display oil gauge; 20. Clamping oil supply port; 21. Cylinder cleaning port; 22. Cleaning air supply port; 23. Airtightness detection air supply port; 24. Nozzle; 25. Positioning pin hole; 26. Bolt hole; 27. Lifting ring. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0024] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0025] This specific embodiment of the present invention is written in a progressive manner.

[0026] like Figures 1 to 3 As shown, a double-station housing 1 processing fixture provided in this embodiment has a specific structure including: a base 2, a pull-down clamping mechanism 3, a supporting mechanism 5, and a hydraulic mechanism; In this embodiment, the base 2 is used as a bearing platform for the fixture installation. Figures 1 to 3 As shown, two processing stations are provided on the base 2 for clamping the housing 1, and each of the processing stations is provided with the pull-down clamping mechanism 3 and the supporting mechanism 5 along the axial direction of the central circle pin of the housing 1. Specifically, in this embodiment, Figure 1 As shown, the housing 1 is horizontally placed on the base 2. Since the outer surface is an irregular arc shape, it is positioned and clamped by providing the pull-down clamping mechanism 3 and the supporting mechanism 5; The hydraulic mechanism coordinates and controls the pull-down clamping mechanism 3 and the support mechanism 5 in the two processing stations to ensure that the clamping force is evenly applied and can maintain the clamping force so that there will be no loosening during the processing; In order to accurately position and clamp the housing 1, the pull-down clamping mechanism 3 in this embodiment is described. A pull nail 4 is inserted into the process hole on the outer surface of the housing 1, and then the pull nail 4 is pulled down and clamped by the pull-down clamping mechanism 3 to provide a downward pulling force for fixing. Furthermore, in order to ensure the stability of the clamping, in this embodiment, a supporting structure is also provided on the base 2 to abut and support the outer surface of the shell 1 to keep it fixed; The hydraulic mechanism is disposed on the base 2 and is connected to the pull-down clamping mechanism 3 and the supporting mechanism 5 to provide power for the clamping and holding actions thereof.

[0027] As a preference, the pull-down clamping mechanism 3 described in this embodiment is further limited, as shown in FIG. Figure 3 As shown, the specific number of the pull-down clamping mechanism 3 is three groups, and they are distributed according to the triangular three-point positions of the first position 6, the second position 7, and the third position 8. Specifically, in this embodiment, the first position 6 is parallel to the second position 7 and is arranged on the base 2 through the mounting seat 9. The third position 8 is arranged on the other side of the mounting seat 9, forming a triangular layout to tighten and fix the parts of the housing 1. Figure 1 and Figure 2 As shown, the shell 1 is arranged on the mounting seat 9, so that the shell 1 can be raised relative to the base 2 to avoid interference in processing, and the mounting seat 9 is also designed with a V-groove structure according to the arc shape of the outer surface of the shell 1, so that the shell 1 can be placed more stably and fixedly.

[0028] Furthermore, the connection method of the rivet 4 described in the present embodiment is further limited. In the present embodiment, since the process hole on the outer surface of the shell 1 is provided with an internal thread, the rivet 4 is installed into the original process threaded hole, and then the shell 1 equipped with the rivet 4 is aligned with the three positioning holes of the pull-down clamping mechanism 3. Special attention is paid to whether there are iron filings on the positioning surface of the positioning hole. During the installation of the rivet 4, brute force should not be used to prevent the rivet 4 from being twisted off. After observing whether it fits, the hydraulic mechanism is used to provide pressure to tighten the shell 1 to the clamp.

[0029] Furthermore, the support mechanism 5 described in this embodiment is further limited, such as Figure 1 As shown, in the present embodiment, the support mechanism 5 is specifically a hydraulic support device. Specifically, a movable support head 10 is provided at the end thereof. Under the action of the pressure provided by the hydraulic mechanism, the outer surface of the shell 1 is abutted and supported to avoid unstable clamping of the shell 1 during the processing of the shell 1, which causes shaking and causes the size to fail to meet the requirements of the drawing.

[0030] Furthermore, the support mechanism 5 described in this embodiment is further limited, such as Figures 1 to 3 As shown, in this embodiment, the specific number is four groups, such as Figure 3 As shown, three groups correspond to the pull-down clamping mechanism 3, and are distributed according to the three-point positions of the triangle of the fourth position 11, the fifth position 12, and the sixth position 13; more specifically, the fourth position 11 is set in the middle of the first position 6 and the second position 7, the fifth position 12 and the sixth position 13 are set on one side of the third position 8, and are tilted on the base 2 through the mounting seat 9, and the last group of the support mechanism 5 is set parallel to the plane of the base 2 through the floating support 14, to abut and support the arc-shaped outer surface of the shell 1.

[0031] As a preference, the specific structure of the hydraulic mechanism described in this embodiment is further limited, such as Figures 1 to 3 As shown, in this embodiment, the hydraulic mechanism specifically includes: a non-leakage pressure-maintaining valve 15, a sequence valve 16, a non-leakage automatic coupler 17, an accumulator 18, and a pressure-reducing display oil gauge 19; The non-leakage pressure-maintaining valve 15 is provided with a clamping oil supply port 20 of the hydraulic mechanism, and the base 2 is provided with an oil cylinder cleaning port 21, forming a complete hydraulic circuit; In this embodiment, the specific hydraulic circuit is as follows: Figure 4As shown, the accumulator 18, the sequence valve 16, the leak-free automatic connector 17, and the pressure reduction display oil gauge 19 are arranged on the base 2, and are connected to the clamping mechanism through a hydraulic pipeline. Under the pressure of the hydraulic oil, the sequence valve 16 is used to control the clamping and fixing of the shell 1, and the accumulator 18 is used to keep the clamping stable.

[0032] Furthermore, in order to inspect the housing 1 during clamping and clean it during processing, in this embodiment, Figures 1 to 3 As shown, an air path mechanism is also provided on the base 2, and the air path mechanism specifically includes: a cleaning air supply port 22, an airtightness detection air supply port 23, and a nozzle 24; The airtight detection air supply port 23 and the clamping mechanism form an airtight circuit, which is used for the air circuit mechanism to confirm the clamping state of the processing station to ensure stable clamping; The nozzles 24 are arranged on the base 2 around the periphery of the processing station for blowing and cleaning the shell 1 after processing, so as to facilitate cleaning of the waste residues and stains remaining on the surface of the shell 1 .

[0033] Preferably, the double-station design of the processing station brings convenience to the processing of the shell 1 and can improve the processing efficiency. Therefore, in order to improve the efficiency of the double-station switching processing, the layout structure of the processing station is further limited. In this embodiment, the two processing stations are symmetrically arranged on the base 2, and are more specifically designed to be centrally symmetrical. Through such a design, the machine tool pallet can process another part only after rotating, thereby reducing the debugging time.

[0034] Preferably, the structural arrangement of the base 2 is further limited, such as Figure 1 and Figure 3 As shown, a positioning pin hole 25 and a bolt hole 26 are also provided on the base 2. The positioning pin can be conveniently inserted into the machine tool pallet to roughly position the fixture, and then the bolt is inserted into the bolt hole 26 to fasten the fixture to the machine tool pallet, so that the fixture is firmly installed.

[0035] Furthermore, the structural arrangement of the base 2 is further defined, such as Figure 1 and Figure 2 As shown, a lifting ring 27 is also installed on the base 2. When the fixture needs to be removed from the machine tool workbench or installed on the workbench, a transport tool such as an overhead crane can be used to lift the fixture by passing a rope through the lifting ring 27.

[0036] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-station shell processing fixture, characterized in that: include: Base, pull-down clamping mechanism, support mechanism, hydraulic mechanism; Two processing stations are arranged on the base, and each of the processing stations is provided with the pull-down clamping mechanism and the supporting mechanism along the axial direction of the central circle pin of the shell; The hydraulic mechanism coordinates and controls the pull-down clamping mechanism and the supporting mechanism in the two processing stations; The pull-down clamping mechanism is arranged on the base, and pulls down and clamps the pull nail inserted into the process hole on the outer surface of the shell; The support mechanism can be movably arranged on the base to abut and support the outer surface of the shell; The hydraulic mechanism is arranged on the base, and is connected with the pull-down clamping mechanism and the supporting mechanism to provide power for the clamping and holding actions thereof.

2. The double-station shell processing fixture according to claim 1 is characterized in that: The specific number of the pull-down clamping mechanisms is three groups, and they are distributed in a triangle of three points, namely, a first position, a second position, and a third position, and are arranged on the base through a mounting seat.

3. The double-station shell processing fixture according to claim 2 is characterized in that: The pull nail is arranged in the process hole on the outer surface of the shell through thread connection.

4. The double-station shell processing fixture according to claim 3 is characterized in that: The support mechanism is specifically a hydraulic supporter, which is provided with a movable support head to abut and support the outer surface of the shell.

5. The double-station shell processing fixture according to claim 4 is characterized in that: The specific number is four groups, three of which are distributed according to the three-point positions of a triangle of the fourth position, the fifth position and the sixth position, and are set on the base through a mounting seat, and the other group is set parallel to the base plane through a floating support.

6. The double-station shell processing fixture according to claim 1, characterized in that: The hydraulic mechanism specifically includes: a non-leakage pressure-maintaining valve, a sequence valve, a non-leakage automatic coupler, an accumulator, and an oil display gauge; The non-leakage pressure-maintaining valve is provided with a clamping oil supply port of the hydraulic mechanism, and the base is provided with an oil cylinder cleaning port, so as to form a complete hydraulic circuit; The accumulator, the sequence valve, the leak-free automatic connector, and the oil display gauge are arranged on the base, and are connected with the pull-down clamping mechanism and the supporting mechanism through hydraulic pipelines. The sequence valve is used to control the clamping and fixing of the shell, and the accumulator is used to keep the clamping stable.

7. The double-station shell processing fixture according to claim 6, characterized in that: The base is also provided with an air path mechanism, which includes: a cleaning air supply port, an air tightness detection air supply port, and a nozzle; The airtight detection air supply port is used for the air path mechanism to confirm the clamping state of the processing station; The nozzles are arranged on the base around the periphery of the processing station for blowing and cleaning the shell after processing.

8. The double-station shell processing fixture according to claim 1, characterized in that: The two processing stations are symmetrically arranged on the base.

9. The double-station shell processing fixture according to any one of claims 1 to 8, characterized in that: The base is also provided with a positioning pin hole and a bolt hole. The positioning pin hole facilitates the rough positioning of the fixture on the machine tool pallet, and then the fixture is fastened to the machine tool pallet by inserting bolts into the bolt holes.

10. The double-station shell processing fixture according to claim 9, characterized in that: A lifting ring is also installed on the base to facilitate the transportation and installation of the clamp.

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