Hole pitch measuring device

Abstract

The utility model discloses a pitch measuring device, which relates to the technical field of pitch measurement and comprises a movable support, the movable support is composed of an L-shaped supporting rod, a first anti-falling plate, a second anti-falling plate, a supporting base ring and a reset spring, and the pitch measuring device composed of the movable support, a measuring graduated scale and a movable marking piece is arranged on a workpiece clamp. According to the device, the hole distance can be efficiently and accurately measured and positioned in the workpiece punching process, the required hole distance can be rapidly adjusted and accurately locked through flexible sliding of the movable marking piece on the measuring graduated scale, and the hole distance can be accurately measured by matching sliding adjustment of the movable support on the workpiece clamp and up-down displacement of the measuring graduated scale. The movable marking piece can be ensured to be accurately attached to the surface of the workpiece and accurately position the position to be punched, a drill bit of punching equipment can directly work through the marking hole, the problems of reading errors, marking deviation and the like existing in a traditional measuring tool are effectively solved, and repeatability and consistency of hole distance measurement are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of hole spacing measurement technology, and in particular to a hole spacing measuring device. Background Technology

[0002] Accurate measurement of hole spacing is crucial for ensuring product quality during workpiece machining. Traditional hole spacing measurement methods typically rely on tools such as vernier calipers, measuring tapes, or coordinate measuring machines (CMMs). While these methods meet basic measurement needs, they have several limitations in practical applications. For example, vernier calipers are inconvenient to operate when measuring large hole spacings and are prone to inaccurate results due to human error. Measuring tapes, due to their flexibility, struggle to guarantee linearity and repeatability, especially when measuring irregular workpieces. While CMMs offer high precision, they are expensive, complex to operate, and require strict environmental conditions, making them unsuitable for rapid measurement on the production floor. Furthermore, existing measuring tools often require manual marking of hole positions after measurement, which is inefficient and prone to errors in subsequent drilling positions due to unclear or misaligned markings. These problems not only increase the time and cost of workpiece machining but can also lead to workpiece scrap due to unacceptable hole spacing, severely impacting production efficiency and product quality. Therefore, this application proposes a hole spacing measuring device to address the problems of low measurement efficiency, insufficient accuracy, and cumbersome marking in existing technologies. Utility Model Content

[0003] The main objective of this invention is to provide a hole spacing measuring device that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A hole spacing measuring device includes a movable support, which comprises an L-shaped support rod, a first anti-detachment plate, a second anti-detachment plate, a support base ring, and a return spring. The L-shaped support rod is slidably mounted on a workpiece fixture. The first anti-detachment plate is fixedly mounted on the rear end of the L-shaped support rod, and the second anti-detachment plate is fixedly mounted on the upper end of the L-shaped support rod. The support base ring is fixedly sleeved on the L-shaped support rod, and the return spring is also sleeved on the L-shaped support rod and is located at the upper end of the support base ring. A measuring scale is slidably mounted on the L-shaped support rod, and the measuring scale is located between the return spring and the second anti-detachment plate. Two movable marking elements are movably mounted on the measuring scale. Each movable marking element comprises a marking base plate, a connecting plate, and a limiting baffle. The marking base plate and the limiting baffle are respectively fixedly mounted at both ends of the connecting plate.

[0006] Preferably, the workpiece fixture has an installation through slot.

[0007] Preferably, the L-shaped support rod and the first anti-detachment plate on the movable bracket are slidably installed in the mounting slot opened on the workpiece fixture, and the second anti-detachment plate, the support base ring and the return spring are all located on the front side of the workpiece fixture.

[0008] Preferably, the measuring scale has a mounting square hole through which the measuring scale passes vertically. The measuring scale is slidably mounted on the L-shaped support rod through the mounting square hole. Two mounting guide grooves are symmetrically provided on the measuring scale on the left and right sides of the mounting square hole, and the mounting guide grooves pass through the measuring scale front and back.

[0009] Preferably, the connecting plate on the movable marker is slidably installed in the mounting guide groove opened on the measuring scale, the marker base plate is located behind the measuring scale, the limiting baffle is located in front of the measuring scale, and the marker base plate is provided with a marker hole.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By installing a hole spacing measuring device consisting of a movable support, a measuring scale, and a movable marker on the workpiece fixture, efficient and accurate measurement and positioning of hole spacing during workpiece drilling is achieved. This device allows for quick adjustment and precise locking of the required hole spacing through the flexible sliding of the movable marker on the measuring scale. Combined with the sliding adjustment of the movable support on the workpiece fixture and the vertical displacement of the measuring scale, it ensures that the movable marker accurately conforms to the workpiece surface and precisely positions the hole to be drilled. The drill bit of the drilling equipment can operate directly through the marked hole, effectively eliminating reading errors and marking deviations inherent in traditional measuring tools. This device significantly improves the repeatability and consistency of hole spacing measurement. Furthermore, it integrates measurement, positioning, and drilling processes into a single operation, greatly simplifying the workflow and reducing manual intervention. This not only increases drilling efficiency but also improves hole spacing accuracy, making it particularly suitable for batch workpiece processing scenarios. In addition, its modular design accommodates the measurement needs of workpieces of different sizes, and the reset spring configuration ensures automatic reset after measurement. The device is characterized by its ease of operation, low cost, and strong adaptability, significantly reducing scrap rates while improving production efficiency and providing strong assurance for workpiece processing quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the movable support of this utility model;

[0014] Figure 3 This is a schematic diagram of the measuring scale of this utility model;

[0015] Figure 4 This is a structural schematic diagram of the mobile identification component of this utility model.

[0016] In the diagram: 1. Movable bracket; 2. Workpiece clamp; 3. Measuring scale; 4. Movable marker; 5. Mounting through slot; 6. L-shaped support rod; 7. First anti-detachment plate; 8. Second anti-detachment plate; 9. Support base ring; 10. Return spring; 11. Mounting square hole; 12. Mounting guide rail groove; 13. Marking base plate; 14. Connecting plate; 15. Limiting baffle; 16. Marking hole. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a hole spacing measuring device includes a movable support 1. The movable support 1 consists of an L-shaped support rod 6, a first anti-detachment plate 7, a second anti-detachment plate 8, a support base ring 9, and a return spring 10. The L-shaped support rod 6 is slidably mounted on the workpiece clamp 2. The first anti-detachment plate 7 is fixedly mounted on the rear end of the L-shaped support rod 6, the second anti-detachment plate 8 is fixedly mounted on the upper end of the L-shaped support rod 6, the support base ring 9 is fixedly sleeved on the L-shaped support rod 6, and the return spring 10 is also sleeved on the L-shaped support rod 6, and the return spring 10 is simultaneously located at the upper end of the support base ring 9. A measuring scale 3 is slidably mounted between the return spring 10 and the second anti-disengagement plate 8. Two movable markers 4 are movably mounted on the measuring scale 3. Each movable marker 4 consists of a marker base plate 13, a connecting plate 14, and a limiting baffle 15. The marker base plate 13 and the limiting baffle 15 are respectively fixedly mounted at both ends of the connecting plate 14. The workpiece clamp 2 has a mounting slot 5, and the marker base plate 13 has a marker hole 16. In use, the workpiece clamp 2 must be bolted to the drilling equipment, ensuring that the workpiece clamp 2 is positioned within the drilling area of ​​the drilling equipment. When drilling holes in the workpiece below the head, first fix the workpiece on the workpiece fixture 2, ensuring the workpiece surface is flat; then, according to the hole spacing design requirements, move the L-shaped support rod 6 of the moving bracket 1 within the mounting slot 5 of the workpiece fixture 2, thereby driving the measuring scale 3 to be adjusted horizontally to its approximate position; then manually press the measuring scale 3 to move it down along the L-shaped support rod 6. At this time, pressing the measuring scale 3 will compress the return spring 10, until the marking base plate 13 of the moving marking component 4 is in close contact with the workpiece surface; then, according to the scale reading on the measuring scale 3, ... Then, slide the movable marker 4 on the measuring scale 3 so that the marker hole 16 on the marker base plate 13 is aligned with the preset hole position. After positioning, insert the drill bit of the drilling equipment vertically into the marker hole 16 to accurately drill the workpiece. After drilling, control the drilling equipment to remove the drill bit from the workpiece and the marker hole 16, and then release the measuring scale 3. At this time, under the elastic force of the return spring 10, the measuring scale 3 will return to its original position and rise. Finally, remove the drilled workpiece from the workpiece fixture 2. Then repeat the above steps to drill the next workpiece.

[0019] Specifically, the L-shaped support rod 6 and the first anti-detachment plate 7 on the movable bracket 1 are slidably installed in the mounting slot 5 opened on the workpiece fixture 2. The second anti-detachment plate 8, the support base ring 9, and the return spring 10 are all located on the front side of the workpiece fixture 2. The measuring scale 3 has a mounting square hole 11, through which the measuring scale 3 passes vertically. The measuring scale 3 is slidably installed on the L-shaped support rod 6 through the mounting square hole 11. Two mounting guide grooves 12 are symmetrically opened on the measuring scale 3 on the left and right sides of the mounting square hole 11, through which the measuring scale 3 passes back and forth. The connecting plate 14 on the movable marker 4 is slidably mounted in the mounting guide groove 12 opened on the measuring scale 3. The marker base plate 13 is located behind the measuring scale 3, and the limiting baffle 15 is located in front of the measuring scale 3. When the movable marker 4 moves on the measuring scale 3, the connecting plate 14 will slide in the mounting guide groove 12. The connecting plate 14 and the mounting guide groove 12 on the measuring scale 3 adopt a precision matching sliding pair design. The contact surfaces of the two are controlled by machining tolerance to form a moderate interference fit, or elastic friction pads such as polyurethane or rubber are added to generate stable static friction. Once the movable marker 4 is adjusted to the target position, the frictional resistance between the connecting plate 14 and the mounting guide groove 12 is sufficient to offset interference from external vibrations or slight touches, ensuring that the movable marker 4 will not accidentally shift due to its own weight or external force. Furthermore, the limiting baffle 15 further constrains the axial freedom of the connecting plate 14 through mechanical limiting. With this double protection, the movable marker 4 can be firmly locked in the set position of the measuring scale 3 when not manually operated, maintaining the reliability of the hole spacing positioning. The diameter of the marker hole 16 must match the diameter of the drill bit of the drilling equipment to ensure that the drill bit can be accurately centered and pass through the hole. When adjusting the distance between the two movable markers 4 during hole drilling, it is necessary to ensure that the central axis of the marker hole 16 is perpendicularly aligned with the scale line of the measuring ruler 3 to guarantee the linear accuracy of the hole distance measurement. The edges of the marker hole 16 need to be chamfered or hardened to prevent wear or displacement when the drill bit contacts it. In addition, the diameter of the marker hole 16 can be designed as a series of standard sizes to meet the needs of different drill bit specifications, or a replaceable bushing structure can be adopted to further expand its versatility. Through the direct guidance of the marker hole 16, the drilling position strictly corresponds to the reading of the measuring ruler 3, completely avoiding the error of manual marking.

[0020] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pitch measuring device, characterized by: The utility model relates to a movable support (1) is by L shape support rod (6), first anti -drop board (7), second anti -drop board (8), support base ring (9) and reset spring (10) are composed, L shape support rod (6) is slidably installed on workpiece clamp (2), first anti -drop board (7) is fixedly installed at the rear end of L shape support rod (6), second anti -drop board (8) is fixedly installed at the upper end of L shape support rod (6), support base ring (9) is fixedly sleeved on L shape support rod (6), reset spring (10) is also sleeved on L shape support rod (6), and reset spring (10) is located the upper end of support base ring (9) simultaneously, the sliding installation of L shape support rod (6) has measurement scale (3), measurement scale (3) is located between reset spring (10) and second anti -drop board (8), two mobile identification parts (4) are movably installed on measurement scale (3), mobile identification parts (4) are composed of identification base plate (13), connecting plate (14) and limit baffle (15), identification base plate (13) and limit baffle (15) are fixedly installed at both ends of connecting plate (14) respectively.

2. A pitch measuring device according to claim 1, characterised in that: The workpiece clamp (2) is provided with an installation through slot (5).

3. A pitch measuring device according to claim 2, characterised in that: The L-shaped support rod (6) and the first anti-drop plate (7) of the movable support (1) are slidably installed in the installation through slot (5) of the workpiece clamp (2).

4. A pitch measuring device according to claim 3, characterised in that: The measurement scale (3) is provided with an installation square hole (11) which penetrates the measurement scale (3) from top to bottom.

5. A pitch measuring device according to claim 4, characterised in that: The connecting plate (14) of the mobile identification part (4) is slidably installed in the installation guide rail groove (12) of the measurement scale (3). The identification base plate (13) is located behind the measurement scale (3), and the limit baffle (15) is located in front of the measurement scale (3).

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