A kind of fast positioning geometric quantity block gauge calibration auxiliary fixture

Abstract

The utility model discloses a kind of geometric quantity gauge block rule calibration auxiliary fixtures of quick positioning, related to geometric quantity measurement technical field, including receiving plate, further including clamping assembly, clamping assembly includes the connecting seat being connected in the top of receiving plate, connecting seat is rotatably connected with rotating rod, limiting plate is connected on rotating rod, the bottom of limiting plate is connected with pressure block, adjusting assembly, adjusting assembly includes the gear being set on rotating rod, the side of receiving plate top near gear is provided with rack, rack is engaged with gear, sliding block is connected on rack, by setting clamping assembly, can rely on even pressure of flat top surface, adapt to such special-shaped block rule, by setting adjusting assembly, adjust the pressure of pressure block exerting, both avoid the indentation, scratch caused by overpressure, also prevent displacement caused by underpressure.

Description

Technical Field

[0001] This utility model relates to the field of geometric measurement technology, specifically to a rapid positioning auxiliary fixture for calibrating geometric measurement gauge blocks. Background Technology

[0002] The rapid positioning geometric measurement block gauge calibration auxiliary fixture is a professional auxiliary device used for block gauge calibration in the field of geometric measurement. Its core function is to solve the problems of difficult positioning, low efficiency and poor accuracy in traditional calibration.

[0003] For irregularly shaped gauge blocks with flat top surfaces but grooves, protrusions, or hollows on the sides, such as special gauge blocks with positioning holes, existing lateral clamping is prone to instability due to the lack of effective force points on the sides. If forced clamping is performed, it may squeeze the weak structure on the side of the gauge block, causing deformation or damage. Existing top clamping can only apply pressure with a fixed pressure. When the pressure exceeds the gauge block's tolerance limit, it is easy to leave permanent indentations or scratches on the top surface, which will damage the accuracy of the measurement reference. Therefore, we propose a geometric measurement gauge block calibration auxiliary fixture for rapid positioning. Utility Model Content

[0004] The purpose of this invention is to provide a fast-positioning geometric measurement block gauge calibration auxiliary fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid positioning geometric measurement block gauge calibration auxiliary fixture, including a receiving plate, and further comprising:

[0006] A clamping assembly, the clamping assembly including a connecting seat connected to the top of a receiving plate, a rotating rod rotatably connected to the connecting seat, a limiting plate connected to the rotating rod, and a pressure block connected to the bottom of the limiting plate;

[0007] An adjusting assembly includes a gear sleeved on a rotating rod, a rack is provided on the top of the receiving plate near the gear, the rack is meshed with the gear, and a sliding block is connected to the rack.

[0008] Furthermore, a locking assembly is provided on the top of the receiving plate near the sliding block. The locking assembly includes a screw rotatably connected to the top of the receiving plate, a connecting rod rotatably connected to the top of the sliding block, a pressure plate connected to the top of the connecting rod, and a nut threaded onto the screw.

[0009] The above technical solution involves setting a locking component to position the adjusted pressure block and prevent it from shaking.

[0010] Furthermore, a limiting groove is provided on the top of the receiving plate near the sliding block, and the sliding block is slidably connected to the limiting groove.

[0011] The above technical solution is adopted: the trajectory of the sliding block during the movement is limited by setting a limiting groove.

[0012] Furthermore, there are two sliding blocks, which slide in opposite directions on the limiting groove. The top of the pressure plate has a connecting opening, and the screw is located inside the connecting opening.

[0013] The above technical solution is adopted: by setting a connecting port, the screw will not block the pressure plate from moving up and down.

[0014] Furthermore, a rotating assembly is provided at the bottom of the receiving plate. The rotating assembly includes a chassis, and a connecting shaft is rotatably connected to the top of the chassis. The connecting shaft is connected to the bottom of the receiving plate.

[0015] Using the above technical solution: by setting up a rotating component, the angle of the gauge block can be gradually adjusted through step-by-step rotation and fixed-point measurement, so that the asymmetrical structure is aligned with the measuring probe in sequence.

[0016] Furthermore, a calibration component is provided on the top of the chassis. The calibration component includes an extension rod connected to the bottom of the support plate. An indicator head is connected to the bottom of the extension rod. A scale bar is provided on the top of the chassis.

[0017] Using the above technical solution: by setting up a calibration component, the gauge block can be quickly adjusted to the calibrated angle by observing the scale bar.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] In this invention, a clamping assembly is provided. The moving rack drives the gear to rotate, which in turn drives the rotating rod to rotate. The rotating rod drives the limiting plate and the pressure block at its bottom to clamp and position the top of the gauge block. This solves the problem that existing lateral clamping is prone to instability due to the lack of effective force points on the side. If forced clamping is performed, it may squeeze the weak structure on the side of the gauge block, causing deformation or damage. By providing an adjustment assembly, the pressure plate can be moved up and down to adjust the rack, thereby adjusting the pressure of the pressure block. This solves the problem that existing top clamping can only apply a fixed pressure, and when the pressure exceeds the gauge block's tolerance limit, it is easy to leave permanent indentations or scratches on the top surface, damaging the accuracy of the measurement reference. Attached Figure Description

[0020] Figure 1 This is a front view of a geometric measurement block gauge calibration auxiliary fixture for rapid positioning.

[0021] Figure 2 This is a bottom structure diagram of an auxiliary fixture for calibrating geometric gauge blocks for rapid positioning.

[0022] Figure 3 This is a breakdown diagram of a geometric measurement block gauge calibration auxiliary fixture for rapid positioning.

[0023] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0024] Numbering on the map:

[0025] 1. Receiving plate;

[0026] 2. Clamping assembly; 21. Connecting seat; 22. Rotating rod; 23. Limiting plate; 24. Pressure block;

[0027] 3. Adjustment component; 31. Gear; 32. Rack; 33. Sliding block;

[0028] 4. Locking assembly; 41. Screw; 42. Connecting rod; 43. Pressure plate; 44. Nut; 45. Connecting port;

[0029] 5. Rotating assembly; 51. Chassis; 52. Connecting shaft;

[0030] 6. Calibration components; 61. Extension rod; 62. Indicator head; 63. Scale bar;

[0031] 7. Limiting groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figures 1-4 As shown, this utility model provides a technical solution: a rapid positioning geometric measurement block gauge calibration auxiliary fixture, including a receiving plate 1, and further including:

[0034] Clamping assembly 2 includes a connecting seat 21 connected to the top of the receiving plate 1, a rotating rod 22 rotatably connected to the connecting seat 21, a limiting plate 23 connected to the rotating rod 22, and a pressure block 24 connected to the bottom of the limiting plate 23.

[0035] Adjustment component 3 includes a gear 31 sleeved on the rotating rod 22, and a rack 32 is provided on the top of the receiving plate 1 near the gear 31. The rack 32 meshes with the gear 31, and a sliding block 33 is connected to the rack 32.

[0036] A locking component 4 is provided on the top side of the receiving plate 1 near the sliding block 33. The locking component 4 includes a screw 41 rotatably connected to the top of the receiving plate 1, a connecting rod 42 rotatably connected to the top of the sliding block 33, a pressure plate 43 connected to the top of the connecting rod 42, and a nut 44 threadedly connected to the screw 41.

[0037] Specifically, the gauge block is first placed on top of the receiving plate 1, and then the pressure plate 43 is pressed down. During the pressing process, the connecting rod 42 at the bottom will move. The connecting rod 42 will move the sliding block 33, and the sliding block 33 will move the rack 32. During the movement, the rack 32 will drive the gear 31 to rotate. The gear 31 will drive the rotating rod 22 to rotate on the connecting seat 21, thereby driving the top limiting plate 23 and the bottom pressure block 24 to clamp and position the gauge block at the top. After positioning, the nut 44 is screwed onto the screw 41 to position the pressure block 24.

[0038] Furthermore, such as Figure 3 As shown: A calibration component 6 is provided on the top of the chassis 51. The calibration component 6 includes an extension rod 61 connected to the bottom of the receiving plate 1. An indicator head 62 is connected to the bottom of the extension rod 61. A scale bar 63 is provided on the top of the chassis 51. By observing the indicator head 62 and the scale bar 63, the gauge block can be quickly adjusted to the calibration angle.

[0039] The above solution also requires that the trajectory of the sliding block 33 during its movement be limited to prevent the rack 32 from deviating from its original trajectory. Figure 1 As shown: A limiting groove 7 is provided on the top side of the receiving plate 1 near the sliding block 33. The sliding block 33 is slidably connected to the limiting groove 7. There are two sliding blocks 33. The two sliding blocks 33 slide in opposite directions on the limiting groove 7. A connecting port 45 is provided on the top of the pressure plate 43. The screw 41 is located in the connecting port 45. The sliding block 33 slides on the limiting groove 7, thereby limiting the movement trajectory of the rack 32.

[0040] The above solutions also include the requirement that the gauge block should be able to be rotated after positioning for calibration. Figure 3 As shown: A rotating component 5 is provided at the bottom of the receiving plate 1. The rotating component 5 includes a chassis 51. A connecting shaft 52 is rotatably connected to the top of the chassis 51. The connecting shaft 52 is connected to the bottom of the receiving plate 1. Since the connecting shaft 52 is rotatably connected to the chassis 51, the top block can be rotated when the receiving plate 1 is rotated.

[0041] The working principle provided by this utility model is as follows: Figures 1-4As shown: First, place the gauge block on top of the receiving plate 1, then press down the pressure plate 43. During the pressing process, the connecting rod 42 at the bottom will move. The connecting rod 42 will move the sliding block 33, which will move the rack 32. During the movement of the rack 32, the gear 31 will rotate. The gear 31 will rotate the rotating rod 22 on the connecting seat 21, thereby causing the top limiting plate 23 and the bottom pressure block 24 to clamp and position the gauge block at the top. After positioning, screw the nut 44 onto the screw 41 to position the pressure block 24. Since the connecting shaft 52 is rotatably connected to the chassis 51, rotating the receiving plate 1 will drive the top gauge block to rotate. During the rotation, observe the indicator head 62 and the scale bar 63 to quickly adjust the gauge block to the calibrated angle.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rapid positioning geometric gauge block calibration auxiliary fixture, comprising a receiving plate (1), characterized in that, Also includes: The clamping assembly (2) includes a connecting seat (21) connected to the top of the receiving plate (1), a rotating rod (22) rotatably connected to the connecting seat (21), a limiting plate (23) connected to the rotating rod (22), and a pressure block (24) connected to the bottom of the limiting plate (23). Adjustment component (3), the adjustment component (3) includes a gear (31) sleeved on the rotating rod (22), a rack (32) is provided on the top of the receiving plate (1) near the gear (31), the rack (32) meshes with the gear (31), and a sliding block (33) is connected to the rack (32).

2. The auxiliary fixture for rapid positioning of geometric measurement gauge blocks according to claim 1, characterized in that: A locking assembly (4) is provided on the top side of the receiving plate (1) near the sliding block (33). The locking assembly (4) includes a screw (41) rotatably connected to the top of the receiving plate (1), a connecting rod (42) rotatably connected to the top of the sliding block (33), a pressure plate (43) connected to the top of the connecting rod (42), and a nut (44) threaded onto the screw (41).

3. The rapid positioning geometric measurement block gauge calibration auxiliary fixture according to claim 1, characterized in that: A limiting groove (7) is provided on the top side of the receiving plate (1) near the sliding block (33), and the sliding block (33) is slidably connected to the limiting groove (7).

4. The rapid positioning geometric measurement block gauge calibration auxiliary fixture according to claim 2, characterized in that: There are two sliding blocks (33), and the two sliding blocks (33) slide in opposite directions on the limiting groove (7). The pressure plate (43) has a connecting port (45) at the top, and the screw (41) is located in the connecting port (45).

5. The rapid positioning geometric measurement block gauge calibration auxiliary fixture according to claim 1, characterized in that: The bottom of the receiving plate (1) is provided with a rotating component (5), the rotating component (5) includes a chassis (51), the top of the chassis (51) is rotatably connected to a connecting shaft (52), and the connecting shaft (52) is connected to the bottom of the receiving plate (1).

6. The rapid positioning geometric measurement block gauge calibration auxiliary fixture according to claim 5, characterized in that: The chassis (51) is provided with a calibration component (6) on top. The calibration component (6) includes an extension rod (61) connected to the bottom of the support plate (1). An indicator head (62) is connected to the bottom of the extension rod (61). A scale bar (63) is provided on the top of the chassis (51).

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