Assembly testing fixture for cylinder

Abstract

The utility model relates to the technical field of column body checking tools, in particular to an assembly checking tool for a column body. The opening assembly comprises a first plate block, a second plate block, a sliding block, a clamp piece and a connecting line, the two opposite ends of the first plate block and the second plate block are close to each other and away from each other respectively, and the two opposite ends of the first plate block and the second plate block are movably and rotationally connected with the workbench and elastically connected with the workbench respectively; a gap is formed between the first plate block and the second plate block, the sliding block moves along the gap, the clamp is fixedly arranged on the workbench, and the clamp end of the clamp piece is connected with the sliding block through the connecting line. The first plate block and the second plate block pull the connecting line along with the clamp piece to control the sliding block to move along the interval, so that the first plate block and the second plate block are folded or unfolded in the opposite direction.

Description

Technical Field

[0001] The utility model relates to the technical field of column inspection tools, in particular to an assembly inspection tool for columns. Background Art

[0002] With the widespread application of columnar components in numerous industries (such as machinery manufacturing, automotive, and aerospace), the requirements for their quality and precision are becoming increasingly stringent. These columns may serve as critical support structures, transmission components, or other functional components. Their dimensional accuracy, shape accuracy, and the assembly accuracy between various parts directly affect the performance and reliability of the entire product.

[0003] Some existing columns still have the following problems: In terms of column clamping, existing mechanical clamps mostly rely on screw rotation to push the clamping plate, which is cumbersome to operate and requires manual rotation of the screw multiple times to adjust the clamping plate spacing. The clamping force is difficult to accurately control, and it is easy to damage the column due to over-tightening or cause the column to shift during measurement due to over-loosening. When measuring the total length and position accuracy of the product, the combination of multiple measuring tools such as calipers and height gauges is also insufficient. This method requires a high level of operator skill, and frequent replacement of measuring tools and adjustment of positions during measurement can easily introduce human errors. For columns with complex shapes, it is difficult to comprehensively and accurately measure all precision information, and the measurement results are inaccurate and cannot meet the needs of high-quality production.

[0004] Existing column clamping systems are mostly mechanical fixtures with manual screw-driven clamps. These are complex to operate, difficult to control, and prone to damage or displacement of the column. Adjustment is also cumbersome and inefficient when changing dimensions. Measurements often use a combination of calipers and height gauges, requiring frequent tool changes and adjustments, which can lead to errors and inaccuracies when measuring complex columns.

[0005] Therefore, there is an urgent need for an assembly inspection tool for a column to solve the above problems. Utility Model Content

[0006] Based on the above, the purpose of the present invention is to provide an assembly inspection fixture for a column to solve the problems of difficulty in clamping a workpiece and inability to directly measure whether the inspected part of the product is qualified.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: an assembly inspection tool for a column, comprising:

[0008] Workbench;

[0009] A positioning assembly is provided on the workbench, the positioning assembly reciprocates in a direction of generating positive pressure for clamping the product, and the positioning assembly is used to clamp the product;

[0010] a measuring tool assembly, comprising a box, a core shaft, a reference block and a go / no-go gauge, all of which are arranged on the workbench, wherein both ends of the box are open;

[0011] The expansion assembly includes a first plate, a second plate, a slider, a clamp and a connecting line. The opposite ends of the first plate and the second plate are respectively close to and away from each other, and the opposite ends of the first plate and the second plate are respectively movably rotatably connected and elastically connected to the workbench. There is a gap between the first plate and the second plate, and the slider moves along the gap. The clamp is fixed on the workbench, and the clamp end of the clamp is connected to the slider through the connecting line. The first plate and the second plate are controlled by the clamp to move along the gap as the connecting line is pulled by the clamp, so that the first plate and the second plate are closed or expanded in relative directions.

[0012] As a preferred solution of the assembly gauge for a column, it further includes a first mounting base, which is arranged on the workbench, and the first mounting base is used to mount the core shaft for telescopic measurement of the product.

[0013] As a preferred solution for an assembly gauge for a column, the first mounting base includes a first base body and a concentric hole. The first base body is detachably connected to the workbench. The concentric hole is fixed to and passes through the first base body. The core shaft is telescopically measured along the concentric hole.

[0014] As a preferred solution for an assembly gauge for a column, the positioning assembly includes a support seat and a clamping member. The support seat is fixed on the workbench, and the working surface of the support seat is set as a mating surface for mating with the product profile. The clamping member reciprocates in the direction of generating positive pressure on the product by mating with the mating surface.

[0015] As a preferred solution for an assembly gauge for a column, the clamping piece is provided with a guide hole, and the core shaft is extended and retracted along the guide hole to measure the product.

[0016] As a preferred solution for an assembly inspection fixture for a column, the box includes a box body and a box cover. The box body is fixed on the workbench, the top and both ends of the box body are open, and the box cover is detachably arranged on the box body.

[0017] As a preferred solution of an assembly inspection fixture for a column, a top surface of the box body is provided with a slot, and the workbench and the inner cavity of the box body are connected through the slot and two ends of the box body.

[0018] As a preferred solution of the assembly inspection fixture for a column, it further includes a second mounting base, which is arranged on the workbench, and the second mounting base is used to mount the reference block.

[0019] As a preferred solution for an assembly inspection fixture for a column, the second mounting base includes a positioning seat body, a connecting deep hole, a positioning rod and a connecting plate. The positioning seat body is fixed on the workbench, the positioning rod is elastically connected to the positioning seat body, the connecting deep hole is fixed on the positioning seat body, one end of the connecting plate passes through the connecting deep hole, the positioning rod passes through the connecting deep hole and the connecting plate in sequence from the positioning seat body, and the other end of the connecting plate is used to install and fix the reference block.

[0020] As a preferred solution of the assembly inspection tool for a column, it further includes a trolley arranged under the workbench, and the trolley is used to push the workbench.

[0021] The beneficial effects of the present invention are as follows: the first plate and the second plate are controlled to move along the interval as the clamp pulls the connecting line, so that the first plate and the second plate are closed or opened in relative directions, and can be opened in a controllable manner to clamp the product, thereby facilitating subsequent measurement work; through the box body, core shaft, reference block and go / no-go gauge arranged on the workbench, it is possible to intuitively measure whether the total length of the product is qualified, and it is also possible to intuitively measure whether the position accuracy of the product is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a first direction of an assembly inspection fixture for a column provided by the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the second direction of an assembly inspection fixture for a column provided by the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the product installed in an assembly inspection fixture for a column provided by the utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of a disassembled product in an assembly inspection fixture for a column provided by the utility model;

[0026] Figure 5 A schematic cross-sectional view of a core shaft in an assembly inspection fixture for a column provided by the present invention for inspecting the product hole position;

[0027] Figure 6 This is an exploded schematic diagram of a support component in an assembly inspection fixture for a column provided by the utility model;

[0028] Figure 7 This is a schematic cross-sectional view in the first direction of a support assembly in an assembly inspection fixture for a column provided by the present invention;

[0029] Figure 8A schematic cross-sectional view in the second direction of a support assembly in an assembly inspection fixture for a column provided by the present invention;

[0030] Figure 9 This is an exploded schematic diagram of a fixing seat in an assembly inspection fixture for a column provided by the utility model;

[0031] Figure 10 This is a schematic exploded view in the first direction of a second mounting base in an assembly inspection fixture for a column provided by the present invention;

[0032] Figure 11 This is a schematic exploded view in a second direction of a second mounting base in an assembly inspection fixture for a column provided by the utility model.

[0033] Among them, the reference numerals in the figures are:

[0034] 1. Workbench; 2. Positioning assembly; 3. Support base; 4. Clamping piece; 5. Guide hole; 6. Measuring tool assembly; 7. Box body; 8. Box body; 9. Box cover; 10. Slot; 11. Mandrel; 12. Reference block; 13. Go / no-go gauge; 14. Spreading assembly; 15. First plate; 16. Second plate; 17. Slider; 18. Clamping piece; 19. Connecting wire; 20. First mounting base; 21. First base; 22. Concentric hole; 23. Second mounting base; 24. Positioning base Body; 25. Connecting deep hole; 26. Positioning rod; 27. Connecting plate; 28. Trolley; 29. ​​Fixed seat; 30. Rotating shaft; 31. First spring; 32. Mounting hole; 33. Guide rod; 34. Second spring; 35. Movable carrier; 36. Limit block; 37. Groove; 38. Fixed plate; 39. Limit rod; 40. Limit plate; 41. Stand; 42. Flip seat; 43. Base body; 44. Flip rod; 45. Press rod, 46. Mounting position, 47. Matching parts. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0036] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, 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. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] In one embodiment of the present invention, Figure 1-11As shown, a column-mounted gauge assembly is provided, comprising a workbench 1, a positioning assembly 2, a spreading assembly 14, and a measuring tool assembly 6. Positioning assembly 2 is mounted on workbench 1 and reciprocates in the direction of positive pressure generated by clamping the product, thereby clamping the product. Measuring tool assembly 6 comprises a housing 7, a mandrel 11, a reference block 12, and a go / no-go gauge 13, all mounted on workbench 1. Housing 7 has open ends. The spreading assembly 14 includes a first plate 15, a second plate 16, a slider 17, a clamp 18 and a connecting line 19. The opposite ends of the first plate 15 and the second plate 16 are respectively close to and away from each other, and the opposite ends of the first plate 15 and the second plate 16 are respectively movably rotatably connected and elastically connected to the workbench 1. There is a gap between the first plate 15 and the second plate 16, and the slider 17 moves along the gap. The clamp is fixed on the workbench 1, and the clamping end of the clamp 18 is connected to the slider 17 through the connecting line 19. The first plate 15 and the second plate 16 are pulled along the gap as the clamp 18 pulls the connecting line 19 to control the slider 17, so that the first plate 15 and the second plate 16 are closed or spread in relative directions.

[0041] The assembly inspection fixture for the column provided in this embodiment controls the movement of the slider 17 along the interval by the first plate 15 and the second plate 16 as the clamp 18 pulls the connecting line 19, so that the first plate 15 and the second plate 16 are closed or opened in relative directions, and can be opened in a controllable manner to clamp the product, thereby facilitating subsequent measurement work; through the box body 7, core shaft 11, reference block 12 and go / no-go gauge 13 arranged on the workbench 1, it is possible to intuitively measure whether the total length of the product is qualified, and it is also possible to intuitively measure whether the position accuracy of the product is qualified.

[0042] Preferably, the workbench 1 is provided with a fixed seat 29, which is provided with a mounting position 46 for placing the first and second plates. The adjacent ends of the first and second plates extend into the mounting position 46, and the adjacent ends are rotatably connected to the mounting position 46 via a rotating shaft 30. The rotating shaft 30 is arranged on the mounting position 46 in a direction perpendicular to the axial direction of the first and second plates. Each plate is equipped with a single rotating shaft 30, enabling independent rotation of each plate. Sufficient clearance can be left in the mounting position 46 based on the rotational diameter of the plate to enable the two plates to close and open.

[0043] Specifically, a first spring 31 or other elastic member is provided on the mounting position 46. The first spring 31 is pressed against the ends of the two plates that are away from and opposite to each other. When the slider 17 moves in the gap, the two plates can be automatically reset, thereby realizing the periodic opening and closing movement of the two plates.

[0044] Furthermore, a mounting hole 32 is provided on the mounting position 46, through which a guide rod 33 passes and is fixed. The axial directions of the mounting hole 32 and the guide rod 33 are parallel to the symmetrical direction of the opening and closing of the two plates. A second spring 34, a movable carrier 35, and a limit block 36 for assisting the movement of the slider 17 are sequentially installed on the guide rod 33 along the direction of the mounting hole 32. The diameter of the limit block 36 is larger than the diameter of the guide rod 33, so that the movable carrier 35 and the slider 17 will not slide out of the guide rod 33. A groove 37 is provided on the movable carrier 35, and the slider 17 is placed in the groove 37. The connecting wire 19 passes through the workbench 1, the fixed seat 29, the mounting position 46, and the movable carrier 35 from the clamp end of the clamp, and is finally tightly connected to the slider 17. Specifically, a through hole is provided on the workbench 1 for the connecting wire 19 to pass through. This allows the slider 17 to move stably on the guide rod 33, effectively transmitting the tension of the connecting wire 19 to the slider 17, and making the entire transmission structure stable and reliable, thereby accurately controlling and driving and effectively ensuring the opening and closing movement of the two plates. Preferably, the limit block 36 can be composed of a nut. Of course, in other embodiments, the limit block 36 can also be composed of similar limit components.

[0045] Specifically, the workbench 1 is provided with a fixed plate 38 for securing the clamp. The clamp can be a side-push toggle clamp. The clamp end extends and retracts along the fixed plate 38 as the handle is pulled. The fixed plate 38 is provided with a limit rod 39, which can be formed of a screw. The clamp end is provided with a limit plate 40, and the limit rod 39 is set within the extension and retraction range of the limit plate 40. When the clamp end extends and retracts, the limit rod 39 interacts with the limit plate 40 to control the extension and retraction range of the clamp end, ensuring the normal opening and closing movement of the two plates.

[0046] Preferably, the positioning assembly 2 includes a support base 3 and a clamping member 4. The support base 3 is fixed to the workbench 1. The working surface of the support base 3 is configured to cooperate with the product surface. In this embodiment, the working surface is V-shaped, and its main function is to hold and automatically center the product. When testing or processing cylindrical shaft parts, the shaft is placed on the V-shaped working surface. The shaft will automatically roll to the bottom center of the V due to gravity, allowing the shaft's center axis to be quickly located, thereby improving the inspection speed of the inspection fixture. The clamping member 4 reciprocates in the direction of the positive pressure generated by the mating surface on the product.

[0047] Preferably, a stand 41 for raising the height of the clamping member 4 can be provided on the workbench 1. The clamping member 4 can be composed of a downward-pressing handle and a side-push elbow clamp. In addition, the clamping member 4 can also be used alone without the support seat 3. At the same time, the support seat 3 can also be used to install the measuring tool assembly 6. In this embodiment, the clamping member 4 on the workbench 1 can be extended into the box body 7 to clamp with the product. The specific clamping member 4 is composed of a flip seat 42 and a pressure rod 45. The flip end of the flip seat 42 is connected to the pressure rod 45, and the pressure rod 45 is provided with a bayonet for cooperating with the product. The flip seat 42 includes a base body 43 and a flip rod 44. The flip rod 44 is movably and rotatably arranged on the base body 43. The base body 43 and the flip rod 44 can be connected by screws, and the pressure rod 45 is installed on the flip rod 44.

[0048] Preferably, the flip seat 42 can also be used to mount the measuring tool assembly 6. Specifically, the clamping member 4 is provided with a guide hole 5, along which the mandrel 11 is extended and retracted to measure the product. Specifically, the pressure rod 45 on the flip seat 42 is provided with a guide hole 5. After the mandrel 11 is inserted into the guide hole 5, a mating member 47 can be mounted. This mating member 47 also serves as a measuring tool. The working surface of the mating member 47 is designed to mate with the product surface. By visually observing whether the working surface mates with the product surface, the accuracy of the product surface can be directly determined.

[0049] The column assembly inspection fixture also includes a first mounting base 20, mounted on the workbench 1. The first mounting base 20 is used to mount the mandrel 11 for product telescopic measurement. The first mounting base 20 includes a first base 21 and a concentric hole 22. The base is removably connected to the workbench 1. The concentric hole 22 is fixedly mounted and extends through the base. The mandrel 11 is used to perform product telescopic measurement along the concentric hole 22. In this embodiment, the portion of the product that needs to be expanded has a hole that requires testing. Therefore, after expanding this portion, the mandrel 11 can be inserted through the hole in the first base 21, allowing for quick testing of the concentricity of this portion.

[0050] like Figure 10-11As shown, the assembly gauge for the column also includes a second mounting base 23, which is disposed on the workbench 1. The second mounting base 23 is used to mount the reference block 12. Specifically, the second mounting base 23 includes a positioning base body 24, a connecting deep hole 25, a positioning rod 26, and a connecting plate 27. The positioning base body 24 is fixed to the workbench 1, the positioning rod 26 is elastically connected to the positioning base body 24, and the connecting deep hole 25 is fixed to the positioning base body 24. One end of the connecting plate 27 passes through the connecting deep hole 25 and is tightly connected to the positioning base body 24. The positioning rod 26 passes through the connecting deep hole 25 and the connecting plate 27 in sequence from the positioning base body 24. The other end of the connecting plate 27 is used to mount and fix the reference block 12. The positioning rod 26 is elastically connected to the positioning seat 24. On the one hand, it is convenient to quickly find the position of the positioning rod 26 and improve the installation efficiency. On the other hand, it can be better inserted into the corresponding connection part during installation to ensure the installation accuracy of the positioning seat 24 and the connecting plate 27. It can be adaptively adjusted to fix the positioning of the reference block 12 and preliminarily correct the deviation.

[0051] Preferably, the box body 7 includes a box body 8 and a box cover 9. The box body 8 is fixed on the workbench 1. The box body 8 and the workbench 1 can be connected by fasteners, and the box body 8 and the box cover 9 of different specifications can be easily replaced according to different product sizes and testing requirements. The box body 8 is used to place products. The top and both ends of the box body 8 are open, which is convenient for placing products in the box body 8 from both ends and the top, and it can be visually observed from both ends and the top whether the length to be measured is qualified. The box cover 9 is detachably arranged on the box body 8. When the box cover 9 and the box body 8 need to be installed, the screws therein can be unscrewed or the fasteners can be directly pulled out. Not only can they be quickly disassembled and assembled, the measured product can be quickly installed therein, which increases the speed of observing whether the length is qualified, but it is also convenient to take out the product and increase the speed of measuring other products. The top surface of the box body 8 is provided with a slot 10, and the inner cavity of the workbench 1 and the box body 8 are connected through the slot 10 and the two ends of the box body 8. The installation of the box cover 9 is also the opening and closing of the slot 10, which makes it easy to extend the clamping part 4 on the workbench 1 into the box body 8 through the slot 10, and completes the positioning of the clamping part 4 extending into the box body 8, and the top surface of the box body 8 is provided with a slot 10, and the inner cavity of the workbench 1 and the box body 8 are connected through the slot 10 and the two ends of the box body 8, and the installation of the box cover 9 is also the opening and closing of the slot 10, which makes it easy to extend the clamping part 4 on the workbench 1 into the box body 8 through the slot 10, and completes the positioning of the clamping part 4 extending into the box body 8, avoiding the displacement of the clamping part 4 during use, ensuring the stability and accuracy of the clamping, and preventing the measurement results of the product from being affected by the position change of the clamping part 4.

[0052] The assembly inspection fixture for the column also includes a trolley 28, which is arranged under the workbench 1 and is used to push the workbench 1. The trolley 28 is arranged under the workbench 1 and can push the workbench 1. This not only improves the mobility of the workbench 1 to meet the needs of different inspection scenarios, but also provides a stable support and transportation platform for it, ensuring inspection safety.

[0053] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. An assembly inspection tool for a column, characterized in that: include: Workbench; A positioning assembly is provided on the workbench, the positioning assembly reciprocates in a direction of generating positive pressure for clamping the product, and the positioning assembly is used to clamp the product; a measuring tool assembly, comprising a box, a core shaft, a reference block and a go / no-go gauge, all of which are arranged on the workbench, wherein both ends of the box are open; The expansion assembly includes a first plate, a second plate, a slider, a clamp and a connecting line. The opposite ends of the first plate and the second plate are respectively close to and away from each other, and the opposite ends of the first plate and the second plate are respectively movably rotatably connected and elastically connected to the workbench. There is a gap between the first plate and the second plate, and the slider moves along the gap. The clamp is fixed on the workbench, and the clamp end of the clamp is connected to the slider through the connecting line. The first plate and the second plate are controlled by the clamp to move along the gap as the connecting line is pulled by the clamp, so that the first plate and the second plate are closed or expanded in relative directions.

2. The assembly inspection tool for a column according to claim 1, characterized in that: It also includes a first mounting base, which is arranged on the workbench, and the first mounting base is used to mount the core shaft to perform telescopic measurement of the product.

3. The assembly inspection tool for a column according to claim 2, characterized in that: The first mounting base includes a first base and a concentric hole. The first base is detachably connected to the workbench. The concentric hole is fixed on and passes through the first base. The core shaft is telescopically measured along the concentric hole.

4. An assembly inspection tool for a column according to any one of claims 1 to 3, characterized in that: The positioning assembly includes a support seat and a clamping member. The support seat is fixed on the workbench. The working surface of the support seat is set as a mating surface for mating with the product surface. The clamping member reciprocates in the direction of generating positive pressure on the product by mating with the mating surface.

5. The assembly inspection tool for a column according to claim 4, characterized in that: The clamping piece is provided with a guide hole, and the core shaft is extended and retracted along the guide hole to measure the product.

6. An assembly inspection tool for a column according to any one of claims 1 to 3, characterized in that: The box body comprises a box body and a box cover. The box body is fixed on the workbench. The top and both ends of the box body are in an open state. The box cover is detachably arranged on the box body.

7. The assembly inspection tool for a column according to claim 6, characterized in that: The top surface of the box body is provided with a slot, and the workbench and the inner cavity of the box body are communicated with each other through the slot and the two ends of the box body.

8. An assembly inspection tool for a column according to any one of claims 1 to 3, characterized in that: It also includes a second mounting base, which is arranged on the workbench, and the second mounting base is used to mount the reference block.

9. The assembly inspection tool for a column according to claim 8, characterized in that: The second mounting base includes a positioning seat body, a connecting deep hole, a positioning rod and a connecting plate. The positioning seat body is fixed on the workbench, the positioning rod is elastically connected to the positioning seat body, the connecting deep hole is fixed on the positioning seat body, one end of the connecting plate passes through the connecting deep hole, the positioning rod passes through the connecting deep hole and the connecting plate in sequence from the positioning seat body, and the other end of the connecting plate is used to install and fix the reference block.

10. An assembly inspection tool for a column according to any one of claims 1 to 3, characterized in that: It also includes a trolley, which is arranged under the workbench and is used to push the workbench.

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