Shell clamping and positioning tool

Abstract

The invention relates to a shell clamping and positioning tool, and belongs to the technical field of shell clamping and positioning. A base is included; the mounting seats are distributed on the bottom; the positioning spring pin is connected to the mounting seat, and when the positioning spring pin is in a natural state, a pin head of the positioning spring pin protrudes out of the top surface of the mounting seat and is used for being in positioning connection with a pin hole in a shell; the limiting piece is connected with the positioning spring pin and used for limiting the moving range of the positioning spring pin; an air hole is formed in the supporting table, an attaching face used for being attached to the shell in a positioning mode is arranged on the installation base around the air hole by a circle, and the air detection assembly is used for being connected with the air hole and detecting the pressure between the shell and the attaching face. When the device is used, the situation of inaccurate inspection caused by small errors can be effectively avoided, and the clamping and positioning precision of the shell is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of shell clamping and positioning, and in particular to a shell clamping and positioning tool. Background Art

[0002] Housing clamping and positioning is a key link in the manufacturing process, especially in the production of high-precision and high-complexity mechanical parts, such as aircraft engine housings, turbocharger housings, and gearbox housings. The manufacturing accuracy of these housings directly affects the performance and reliability of the final product.

[0003] Because the positioning holes of the shell parts are rough or have defects such as protrusions and depressions, it will affect the insertion and positioning accuracy of the positioning pin. Therefore, the shell clamping and positioning tooling generally uses a gas detection positioning device to check whether the shell is accurately positioned and whether the zero is clamped off.

[0004] The gas inspection device mainly detects whether the fitting surface on the shell and the positioning point on the shell clamping and positioning tooling are in a completely fitting state. If they are in a completely fitting state, the pressure change between the fitting surface of the shell and the positioning point on the shell clamping and positioning tooling detected by the gas inspection device is within the qualified range. However, if the pressure change detected by the gas inspection device exceeds the qualified range, it means that the shell positioning is inaccurate, and the gas inspection device then issues an alarm warning.

[0005] When there are occasional protrusions on the shell or aluminum chips are caught during the clamping process, there may be a tiny gap between the fitting surface on the shell and the positioning point on the shell clamping and positioning tooling, causing the detected pressure to be close to the qualified range. However, since gas inspection is relatively unreliable, the gas inspection device cannot easily detect such tiny errors, making it difficult to accurately issue an early warning, resulting in a large number of defective products in the shell processing. Summary of the invention

[0006] The embodiment of the present application provides a shell clamping and positioning tool to solve the problem in the related art that when the fitting surface on the shell clamping and positioning tool is in a fitting state with the positioning point on the shell, if the pressure is close to the qualified range, the gas inspection device cannot easily detect such a tiny error, resulting in a relatively unreliable defect in the inspection.

[0007] The embodiment of the present application provides a shell clamping and positioning tool, including: a base; a mounting seat, which is distributed on the bottom; a positioning spring pin, which is connected to the mounting seat, and the positioning spring pin is in a natural state, and its pin head protrudes from the top surface of the mounting seat, and is used to be positioned and connected with the pin hole on the shell; a limiter, which is connected to the positioning spring pin and is used to limit the movement range of the positioning spring pin; a gas detection component, the support platform is provided with an air hole, and the mounting seat is provided with a fitting surface around the air hole for positioning and fitting with the shell, and the gas detection component is used to be connected with the air hole and detect the pressure between the shell and the fitting surface.

[0008] In some embodiments, the mounting seat is provided with a connecting hole for connecting the positioning spring pin, the pin head of the positioning spring pin passes through the connecting hole, and the limiting member is used to limit the movement range of the positioning spring pin in the connecting hole.

[0009] In some embodiments, the limiting member includes an adjusting screw, one end of which is threadedly engaged with the end of the positioning spring pin, and the other end of which is fixed to the bottom wall of the connecting hole.

[0010] In some embodiments, the limiting member includes a limiting bolt, a threaded hole is provided on the mounting seat, a limiting groove is provided on the positioning spring pin, the limiting bolt passes through the threaded hole and is connected to the mounting seat, and one end of the limiting bolt passes through the threaded hole and is inserted into the limiting groove.

[0011] In some embodiments, the limiting member includes a limiting block connected to the side wall of the positioning spring pin, and a sliding groove for the limiting block to move is provided on the side wall of the connecting hole.

[0012] In some embodiments, a clamping assembly is also included, which includes a clamping block and a driving member. A bracket is provided on the mounting seat, and the clamping block is rotatably connected to the bracket. One end of the clamping block is used to press against the shell, and the other end is connected to the driving member. The driving member is used to drive the clamping block to rotate.

[0013] In some embodiments, the driving member includes a cylinder connected to the pressing block.

[0014] In some embodiments, the clamping assembly further includes a clamping pin, which is passed through the clamping block, and a pin head of the clamping pin is used to press against the shell.

[0015] In some embodiments, the mounting seat is provided with a gas detection boss, on which is provided an air outlet aligned with the air hole, the gas detection boss is used to be inserted into a hole on the shell, and the fitting surface is arranged around the gas detection boss.

[0016] In some embodiments, the gas detection boss is configured in a conical shape.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] The embodiment of the present application provides a shell clamping and positioning tool, including a base; a mounting seat, which is distributed on the bottom; a positioning spring pin, which is connected to the mounting seat, and the positioning spring pin is in a natural state, and its pin head protrudes from the top surface of the mounting seat, and is used to be positioned and connected with the pin hole on the shell; a limiter, which is connected to the positioning spring pin and is used to limit the movement range of the limiter spring pin; a gas detection component, the support platform is provided with an air hole, and the mounting seat is provided with a fitting surface around the air hole for positioning and fitting with the shell, and the gas detection component is used to be connected with the air hole and detect the pressure between the shell and the fitting surface. Therefore, when the shell is clamped and positioned, the shell is placed on the mounting seat. At this time, the positioning spring pin plays a positioning role on the shell. At this time, if the shell is completely fitted with the fitting surface, the positioning spring pin will be inserted into the pin hole on the shell, and then the gas detection component will perform pressure detection between the shell and the fitting surface. If the pressure is within the qualified range, no alarm will be issued; but if there is an error in the positioning between the shell and the positioning spring pin, the positioning spring is still pressed by the shell, and there will be a tendency to be pressed into the mounting seat, but at this time, due to the action of the limiter, the positioning spring pin cannot be completely pressed into the mounting seat, and the positioning spring pin will be misaligned with the axis of the pin hole on the shell, and then abut against the side wall of the pin hole. At this time, there is an obvious gap between the shell and the fitting surface, which effectively amplifies the positioning error, and the gas detection component will issue an alarm and timely warning. Therefore, under the action of the positioning spring pin and the limiter, this application ensures that the shell is clamped and positioned. When there is a slight error, it can be quickly detected to ensure processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 creative work.

[0020] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present application;

[0021] Figure 2 A schematic diagram for showing a mounting base provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram for illustrating the connection state between the spring positioning pin and the adjusting bolt provided in the embodiment of the present application;

[0023] Figure 4 A schematic diagram for illustrating the connection state between the spring locating pin and the limiting bolt provided in the embodiment of the present application;

[0024] Figure 5 A schematic diagram for illustrating the connection state between the spring positioning pin and the limit block provided in the embodiment of the present application;

[0025] Reference numerals:

[0026] 1. Base; 2. Mounting seat; 3. Positioning spring pin; 4. Shell; 5. Air hole; 6. Connecting hole; 70. Adjusting screw; 700. Stop block; 71. Limiting bolt; 710. Limiting groove; 72. Limiting block; 720. Slide groove; 80. Pressing block; 800. Bracket; 81. Oil cylinder; 82. Pressing pin; 9. Air inspection boss. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The embodiment of the present application provides a shell clamping and positioning tool, which can solve the problem that during the process of using a gas inspection device to inspect the fitting surface and the positioning point on the shell clamping and positioning tool for fitting, if the pressure is close to the qualified range, the gas inspection device will not easily detect such tiny errors, resulting in a relatively unreliable defect in the inspection.

[0029] See also Figures 1 to 5 As shown, an embodiment of the present application provides a shell clamping and positioning tooling, including: a base 1, a mounting seat 2, a positioning spring pin 3, a limiter and a gas detection component; in the present application, the base 1 serves as the supporting foundation of the entire tooling, and the base 1 provides a stable and solid platform to ensure that other components can be firmly installed and function, and the mounting seats 2 are distributed on the bottom and are connected by connecting members including but not limited to bolts, and at least three mounting seats 2 are provided; the arranged positioning spring pin 3 is connected to the mounting seat 2, and the positioning spring pin 3 is in a natural state, and the pin head of the positioning spring pin 3 protrudes from the top surface of the mounting seat 2 and is used for positioning and connecting with the pin hole on the shell 4; the limiter is connected to the positioning spring pin 3 and is used to limit the moving range of the positioning spring pin 3; an air hole 5 is provided on the support platform, and a fitting surface is arranged around the air hole 5 on the mounting seat 2 for positioning and fitting with the shell 4, and the gas detection component is used to connect with the air hole 5 and detect the pressure between the shell 4 and the fitting surface.

[0030] Therefore, when the housing 4 is clamped and positioned, the housing 4 is positioned on the mounting seat 2 , and the positioning spring pin 3 can be easily inserted into the pin hole on the housing 4 . At this time, if the positioning spring pin 3 is accurately aligned with the shell 4, the positioning spring pin 3 will be completely inserted into the pin hole on the shell 4. At this time, the shell 4 is completely fitted with the fitting surface, and then the gas detection component will perform pressure detection on the shell 4 and the fitting surface. If the pressure is within the qualified range, no alarm will be issued; but if there are occasional protrusions on the shell 4 or aluminum filings are clamped during the clamping process, there will be an error between the shell 4 and the positioning spring pin 3, and the positioning spring pin 3 cannot be completely inserted into the pin hole on the shell 4. The positioning spring pin 3 will be staggered from the axis of the pin hole and abut against the side wall of the pin hole. Even under the pressure of the shell 4, the positioning spring pin 3 is affected by the limiter, so that the positioning spring pin 3 cannot be pressed downward into the mounting seat 2, so that there is an obvious gap between the shell 4 and the fitting surface. The gas detection component will then issue an alarm and issue a timely warning. During use, the clamping and positioning accuracy of the shell 4 is effectively ensured, and the processing quality of the shell 4 is ensured.

[0031] In the present application, the gas detection component (not shown in the figure) includes but is not limited to an air pipe, a pressure sensor and an alarm. An air needle is provided at one end of the air pipe, which is connected to the air hole 5. The other end of the air pipe is connected to the air supply source. The pressure sensor is used to detect the pressure between the positioning point of the shell 4 and the fitting surface on the mounting seat 2. The alarm is connected to the pressure sensor, and a warning is issued in time when the detected pressure exceeds the qualified range, so it is reliable to use.

[0032] In the present application, a gas detection boss 9 is provided on the mounting seat 2. The gas detection boss 9 is set in a conical shape. The gas detection boss 9 is provided with an outlet aligned with the air hole 5 to ensure that the gas can flow out of the air hole 5 smoothly. The fitting surface is set around the gas detection boss 9. When in use, the shell 4 is supported and placed on the mounting seat 2. The conical structure of the gas detection boss 9 has the functions of guiding and positioning, and can be easily inserted into the hole on the shell 4. The conical gas detection boss 9 can also ensure a close fit with the hole of the shell 4 to reduce the possibility of gas leakage. The gas detection boss 9 not only improves the air tightness and detection accuracy, but also has the advantages of guiding and positioning functions, strong adaptability, and easy cleaning and maintenance.

[0033] In the present application, a connecting hole 6 for connecting the positioning spring pin 3 is specifically provided on the mounting base 2 to ensure that the positioning spring pin 3 can be accurately inserted and fixed in a predetermined position. The pin head of the positioning spring pin 3 passes through the connecting hole 6 for positioning with the shell 4, and the limit member is used to limit the movement range of the positioning spring pin 3 in the connecting hole 6.

[0034] In the present application, the limiter provided includes an adjusting screw 70, one end of which is threadedly matched with the end of the positioning spring pin 3, and the other end is fixed to the bottom wall of the connecting hole 6, and the fixing method includes but is not limited to providing a stopper 700 on the bottom wall of the connecting hole 6, and the adjusting screw 70 is connected to the stopper 700. When the adjusting screw 70 is screwed into the end of the positioning spring pin 3, the two are tightly matched through the thread to form a stable connection, and the length of the adjusting screw 70 extending into the positioning spring pin 3 can be adjusted by rotating the adjusting screw 70, and the extension length and positioning accuracy of the positioning spring pin 3 can be adjusted to meet different connection requirements. When there are occasional protrusions on the shell 4 or aluminum chips are clamped during the clamping process, there will be errors between the shell 4 and the positioning spring pin 3, and the positioning spring pin 3 cannot be inserted into the pin hole on the shell 4. The positioning spring pin 3 will be offset from the axis of the pin hole and abut against the side wall of the pin hole. Even under the pressure of the shell 4, the positioning spring pin 3 is affected by the adjusting screw 70, so that the positioning spring pin 3 cannot be pressed downward into the mounting seat 2, so that there is an obvious gap between the shell 4 and the fitting surface. The air inspection component will then issue an alarm and provide a timely warning. During use, the clamping and positioning accuracy of the shell 4 is effectively ensured, and the processing quality of the shell 4 is ensured.

[0035] In other embodiments of the present application, the limiting member includes a limiting bolt 71, a threaded hole is provided on the mounting seat 2, a limiting groove 710 is provided on the positioning spring pin 3, the axial direction of the limiting groove 710 is consistent with the axial direction of the positioning spring, and the limiting groove 710 is arranged in a long strip shape. The limiting bolt 71 is passed through the threaded hole to connect with the mounting base 2, and one end of the limiting bolt 71 passed through the threaded hole is inserted into the limiting groove 710, which can control the extension length and movement range of the positioning spring pin 3. That is, if there is occasionally a protrusion on the shell 4 or aluminum chips are clamped during the clamping process, there will be an error between the shell 4 and the positioning spring pin 3, and the positioning spring pin 3 cannot be completely inserted into the pin hole on the shell 4. The positioning spring pin 3 will be offset from the axis of the pin hole and abut against the side wall of the pin hole. Even under the pressure of the shell 4, the positioning spring pin 3 is affected by the limiting bolt 71, so that the positioning spring pin 3 cannot be pressed downward into the mounting base 2, so that there is an obvious gap between the shell 4 and the fitting surface. The gas inspection component will then issue an alarm and issue a timely warning. During use, the clamping and positioning accuracy of the shell 4 is effectively ensured, and the processing quality of the shell 4 is ensured.

[0036] In other embodiments of the present application, the limiter includes a limit block 72, which is connected to the side wall of the positioning spring pin 3, and a slide groove 720 for the limit block 72 to move is provided on the side wall of the connecting hole 6, and the axis of the slide groove 720 is consistent with the axis of the connecting hole 6. When in use, when the positioning spring pin 3 is pressed by an external force and has a displacement tendency, the limit block 72 will move along the slide groove 720 until the limit block 72 moves to the end of the slide groove 720, and the positioning spring pin 3 cannot continue to move downward, thereby effectively limiting the movement range of the positioning spring pin 3, ensuring the clamping positioning accuracy of the housing 4, and ensuring the processing quality.

[0037] In the present application, the clamping and positioning tooling for the shell 4 also includes a clamping assembly, which includes a clamping block 80 and a driving member. By providing a bracket 800 on the mounting seat 2, the clamping block 80 is rotatably connected to the bracket 800, and one end of the clamping block 80 is used to press against the shell 4, and the other end is connected to the driving member. When in use, the clamping block 80 is driven to rotate by the driving member, and the clamping block 80 can rotate smoothly and apply pressure to the shell 4, thereby achieving the fixing and positioning of the shell 4, ensuring that the position and posture of the shell 4 meet the design requirements. Through the fixing effect of the clamping assembly, the tooling can support the shell 4 more stably, prevent shaking or displacement during the processing, and help improve the processing accuracy and product quality in the subsequent processing.

[0038] In the present application, the driving member includes an oil cylinder 81, which is connected to a clamping block 80. When the piston of the oil cylinder 81 moves upward, the clamping block 80 rotates downward relatively to fix the housing 4, which is convenient to use.

[0039] In the present application, the clamping assembly also includes a clamping pin 82, which is inserted into the clamping block 80. When the clamping block 80 is driven by the driving member to rotate, the pin head of the clamping pin 82 moves accordingly and contacts the housing 4. The pin head of the clamping pin 82 is effectively used to press against the housing 4, and the design of the pin head of the clamping pin 82 usually has a certain elasticity and hardness to ensure that it can fit closely to the surface of the housing 4 and apply sufficient pressure, so as to support the housing 4 more stably and prevent shaking or displacement during processing, which helps to improve processing accuracy and product quality, while reducing safety risks during processing.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0041] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0042] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A shell clamping and positioning tool, characterized in that: include: Base (1); A mounting seat (2) distributed on the bottom; A positioning spring pin (3) connected to the mounting seat (2), wherein the positioning spring pin (3) is in a natural state, the pin head of the positioning spring pin (3) protrudes from the top surface of the mounting seat (2), and is used for positioning connection with the pin hole on the housing (4); a limiting member connected to the positioning spring pin (3) and used to limit the movement range of the positioning spring pin (3); An air detection component, wherein an air hole (5) is provided on the support platform, and a fitting surface is arranged around the air hole (5) on the mounting seat (2) for positioning and fitting with the shell (4). The air detection component is used to connect with the air hole (5) and detect the pressure between the shell (4) and the fitting surface.

2. A housing clamping and positioning tool as claimed in claim 1, characterized in that: The mounting seat (2) is provided with a connecting hole (6) for connecting the positioning spring pin (3), the pin head of the positioning spring pin (3) passes through the connecting hole (6), and the limiting member is used to limit the movement range of the positioning spring pin (3) in the connecting hole (6).

3. A housing clamping and positioning tool as claimed in claim 2, characterized in that: The limiting member comprises an adjusting screw (70), one end of which is threadably matched with the end of the positioning spring pin (3), and the other end of which is fixed to the bottom wall of the connecting hole (6).

4. A shell clamping and positioning tool as claimed in claim 2, characterized in that: The limiting member comprises a limiting bolt (71), the mounting seat (2) is provided with a threaded hole, the positioning spring pin (3) is provided with a limiting groove (710), the limiting bolt (71) passes through the threaded hole and is connected to the mounting seat (2), and one end of the limiting bolt (71) passes through the threaded hole and is inserted into the limiting groove (710).

5. The housing clamping and positioning tool as claimed in claim 2, characterized in that: The limiting member comprises a limiting block (72) connected to the side wall of the positioning spring pin (3); and a sliding groove (720) for the limiting block (72) to move is provided on the side wall of the connecting hole (6).

6. The housing clamping and positioning tool as claimed in claim 1, characterized in that: It also includes a clamping assembly, which includes a clamping block (80) and a driving member. A bracket (800) is provided on the mounting seat (2). The clamping block (80) is rotatably connected to the bracket (800). One end of the clamping block (80) is used to press against the shell (4), and the other end is connected to the driving member. The driving member is used to drive the clamping block (80) to rotate.

7. A shell clamping and positioning tool as claimed in claim 6, characterized in that: The pressing block (80) comprises an oil cylinder (81) which is connected to the pressing block (80).

8. The housing clamping and positioning tool as claimed in claim 6, characterized in that: The clamping assembly further comprises a clamping pin (82), which is inserted into the clamping block (80), and the pin head of the clamping pin (82) is used for pressing against the housing (4).

9. The housing clamping and positioning tool as claimed in claim 1, characterized in that: The mounting seat (2) is provided with a gas detection boss (9), on which is provided a gas outlet aligned with the gas hole (5); the gas detection boss (9) is used for inserting into a hole on the shell (4); and the fitting surface is arranged around the gas detection boss.

10. A housing clamping and positioning tool as claimed in claim 9, characterized in that: The gas detection boss (9) is arranged in a conical shape.

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