Contact type high-precision miniature part measuring instrument

Abstract

The utility model relates to the technical field of measuring instruments, in particular to a contact type high-precision miniature part measuring instrument, which comprises a detection seat, a clamp assembly and a detection assembly, the clamp assembly and the detection assembly are mounted on the detection seat, the clamp assembly comprises a bottom cover rotationally connected onto the detection seat, and the outer wall of the top of the bottom cover is fixedly connected with a clamp seat. Three rectangular openings distributed at equal intervals are formed in the outer wall of the top of the clamp base, and clamp blocks are slidably connected to the inner walls of the three rectangular openings. According to the utility model, the defects in the prior art are overcome, a to-be-detected workpiece is conveniently clamped and fixed through the clamp assembly on the detection seat, and three clamping blocks are conveniently driven to synchronously act through the cooperation between the rotating disc and the rotating wheel in the clamp assembly, so that the workpiece is conveniently clamped; the rubber pad is arranged on the clamping seat to protect the workpiece conveniently, and the screw drives the rack to move to indirectly drive the rotating disc to rotate, so that the adjusting precision of the clamp block is improved, and the situation that the workpiece to be detected is clamped and damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a contact type high-precision micro-part measuring instrument. Background Art

[0002] With the development and progress of industry, industrial production has higher and higher requirements for the precision of hardware parts. When producing mechanical parts, in order to ensure good fit between parts, the requirements for part size are relatively precise. Within the range that can achieve normal operation of the parts, slight errors are allowed, but the errors cannot be too large to prevent fit problems between parts. Therefore, parts generally need to be measured after production to ensure that the size of the parts is within the available range. There are many types of contact measuring instruments used to measure dimensions, including vernier calipers, outside diameter calipers, inside diameter calipers, micrometers, thickness gauges, height gauges and other tools.

[0003] The existing contact-type high-precision micro-part measuring instrument needs to clamp and fix the workpiece during operation. However, the existing measuring instrument fixture may cause the workpiece to be measured to deform during actual operation, thereby causing the part to be damaged. Utility Model Content

[0004] The purpose of the utility model is to solve or at least alleviate the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a contact type high-precision micro-part measuring instrument, comprising a detection seat and a fixture assembly and a detection assembly installed on the detection seat, the fixture assembly comprising a bottom cover rotatably connected to the detection seat, and the top outer wall of the bottom cover is fixedly connected to the fixture seat, the top outer wall of the fixture seat is provided with three equally spaced rectangular openings, and the inner walls of the three rectangular openings are all slidably connected with fixture blocks, one side outer wall of the three fixture blocks is fixedly connected with a rubber pad, the inner wall of the fixture seat is fixedly connected with a fixing plate, and the top outer wall of the fixing plate is rotatably connected with a rotating disk, the top outer wall of the rotating disk is provided with three equally spaced arc openings, the bottom outer walls of the three fixture blocks are rotatably connected with rotating wheels, and the rotating wheels are in contact with the inner walls of the arc openings.

[0006] By adopting the above structure, the workpiece to be tested can be conveniently clamped by the clamp assembly on the detection seat, the setting of the detection assembly is convenient for contact detection with the workpiece, the three clamp blocks on the clamp seat are convenient for contact clamping of the workpiece, and the rotation of the rotating disk directly drives the clamp block to move through the cooperation between the arc-shaped mouth and the rotating wheel.

[0007] The outer wall at the bottom of the fixed plate is rotatably connected with a driving gear, and one end of the driving gear transmission shaft is fixedly connected to the rotating disk.

[0008] With the above structure, the rotating disk can be driven to rotate conveniently through the setting of the driving gear.

[0009] The outer wall of the bottom of the fixing plate is rotatably connected with a screw rod, and the outer wall of the screw rod is threadedly connected with a rack, and the rack rod and the driving gear are meshed with each other.

[0010] With the above structure, the screw drives the rack to move, and the rack directly drives the driving gear to rotate when it moves.

[0011] The outer wall at the bottom of the fixed plate is fixedly connected with a sliding rod, and the rack is slidably connected to the outer wall of the sliding rod.

[0012] With the above structure, the sliding of the auxiliary rack is facilitated by the arrangement of the sliding rod.

[0013] One end of the screw is fixedly connected to a second gear, the outer wall of the bottom of the fixed plate is fixedly connected to a servo motor, and the output shaft of the servo motor is fixedly connected to a first gear meshing with the second gear.

[0014] With the above structure, the servo motor cooperates with the gear to directly drive the screw to rotate, thereby driving the rack to move.

[0015] The detection component comprises a mounting seat fixedly connected to the detection seat, and a sliding opening is opened on an outer wall of one side of the mounting seat, an electric slide rail is fixedly connected to the inner wall of the sliding opening, and a sliding seat is slidably connected to the electric slide rail.

[0016] With the above structure, the electric slide rail is provided to conveniently and directly drive the sliding seat to move. An electric telescopic rod is fixedly connected to the outer wall of the sliding seat, and a detector mounting seat is fixedly connected to the output shaft of the electric telescopic rod.

[0017] With the above structure, the detector mounting base can be conveniently driven to rise and fall by the electric telescopic rod.

[0018] A control panel is fixedly connected to an outer wall of one side of the mounting seat, and the control panel is electrically connected to the electric telescopic rod and the servo motor.

[0019] With the above structure, the electrical components can be conveniently controlled through the setting of the control panel.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The utility model facilitates clamping and fixing the workpiece to be tested by means of the clamp assembly on the detection seat. The cooperation between the rotating disk and the rotating wheel in the clamp assembly facilitates driving the three clamping blocks to move synchronously, thereby facilitating clamping the workpiece. A rubber pad is arranged on the clamping seat to facilitate protection of the workpiece. The rotating disk is indirectly driven to rotate by driving the rack to move through the screw, thereby improving the adjustment accuracy of the clamp block, thereby avoiding the situation where the clamping of the workpiece to be tested is damaged;

[0022] (2) The utility model sets a servo motor on the fixed plate. The servo motor directly drives the screw to rotate through the gear, and then drives the gear to rotate through the movement of the rack. The gear and the rotating disk rotate synchronously, and cooperate with the rotating wheel to drive the clamp block to move to clamp the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the detection component structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the clamp assembly of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the rotating disk of the utility model;

[0027] Figure 5 It is a schematic diagram of the fixed disk structure of the utility model.

[0028] In the figure: 1. detection seat; 2. fixture assembly; 3. detection assembly; 4. mounting seat; 5. sliding seat; 6. electric telescopic rod; 7. detector mounting seat; 8. control panel; 9. fixture seat; 10. rectangular opening; 11. fixture block; 12. rotating disk; 13. arc opening; 14. bottom cover; 15. fixing plate; 16. rotating wheel; 17. driving gear; 18. rack; 19. screw; 20. sliding rod; 21. servo motor; 22. gear one; 23. gear two. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-5A contact type high-precision micro-part measuring instrument comprises a detection seat 1 and a fixture assembly 2 and a detection assembly 3 mounted on the detection seat 1. The fixture assembly 2 comprises a bottom cover 14 rotatably connected to the detection seat 1, and the top outer wall of the bottom cover 14 is fixedly connected to a fixture seat 9, the top outer wall of the fixture seat 9 is provided with three rectangular openings 10 distributed at equal distances, and the inner walls of the three rectangular openings 10 are all slidably connected to fixture blocks 11, the outer walls of one side of the three fixture blocks 11 are all fixedly connected to rubber pads, the inner wall of the fixture seat 9 is fixedly connected to a fixing plate 15, and the top outer wall of the fixing plate 15 is rotatably connected to the detection seat 1. It is rotatably connected with a rotating disk 12, and three equally spaced arc-shaped openings 13 are provided on the top outer wall of the rotating disk 12. The bottom outer walls of the three clamp blocks 11 are rotatably connected with rotating wheels 16, and the rotating wheels 16 are in contact with the inner walls of the arc-shaped openings 13. The clamp assembly 2 on the detection seat 1 is convenient for clamping the workpiece to be tested, and the setting of the detection assembly 3 is convenient for contact detection with the workpiece. The three clamp blocks 11 on the clamp seat 9 are convenient for contact clamping of the workpiece. The rotating disk 12 rotates through the cooperation between the arc-shaped openings 13 and the rotating wheels 16, directly driving the clamp blocks 11 to move.

[0031] For details, please refer to Figure 5 The outer wall of the bottom of the fixed plate 15 is rotatably connected with a driving gear 17, and one end of the transmission shaft of the driving gear 17 is fixedly connected to the rotating disk 12. The driving gear 17 is arranged to conveniently drive the rotating disk 12 to rotate.

[0032] For details, please refer to Figure 5 The outer wall of the bottom of the fixed plate 15 is rotatably connected with a screw rod 19, and the outer wall of the screw rod 19 is screwed with a rack 18, the rack 18 and the driving gear 17 are meshed with each other, and the rack 18 is driven to move by the screw rod 19, and the driving gear 17 is directly driven to rotate when the rack 18 moves.

[0033] For details, please refer to Figure 5 The outer wall at the bottom of the fixed plate 15 is fixedly connected with a slide bar 20 , and the rack 18 is slidably connected to the outer wall of the slide bar 20 . The setting of the slide bar 20 facilitates the sliding of the auxiliary rack 18 .

[0034] For details, please refer to Figure 5 One end of the screw rod 19 is fixedly connected to a gear 23, a servo motor 21 is fixedly connected to the outer wall of the bottom of the fixed plate 15, and a gear 1 22 meshing with the gear 23 is fixedly connected to the output shaft of the servo motor 21. The servo motor 21 cooperates with the gear to directly drive the screw rod 19 to rotate, thereby driving the rack 18 to move.

[0035] For details, please refer to Figure 2The detection component 3 includes a mounting base 4 fixedly connected to the detection base 1, and a sliding opening is opened on the outer wall of one side of the mounting base 4, an electric slide rail is fixedly connected to the inner wall of the sliding opening, and a sliding base 5 is slidably connected to the electric slide rail. The setting of the electric slide rail facilitates the direct driving of the sliding base 5 to move.

[0036] For details, please refer to Figure 2 An electric telescopic rod 6 is fixedly connected to the outer wall of the sliding seat 5, and a detector mounting seat 7 is fixedly connected to the output shaft of the electric telescopic rod 6, so that the detector mounting seat 7 can be conveniently driven to rise and fall by the electric telescopic rod 6.

[0037] For details, please refer to Figure 2 A control panel 8 is fixedly connected to an outer wall of one side of the mounting base 4, and the control panel 8 is electrically connected to the electric telescopic rod 6 and the servo motor 21. The setting of the control panel 8 facilitates the control of the electrical components.

[0038] Working principle: When in use, first install the measuring instrument on the detector mounting seat 7, then place the workpiece to be measured on the fixture seat 9, and start the servo motor 21 at the same time. The servo motor 21 starts to directly drive the gear to drive the screw 19 to rotate. When the screw 19 rotates, it directly drives the rack 18 to move. The movement of the rack 18 drives the rack 18 to rotate, driving the rotating disk 12 to rotate, so as to facilitate the direct driving of the fixture block 11 to move through the rotating wheel 16 to clamp the workpiece, and then the measuring instrument is driven downward by the electric telescopic rod 6 to perform contact measurement on the workpiece.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A contact type high precision micro parts measuring instrument, comprising a detection seat (1) and a fixture assembly (2) and a detection assembly (3) mounted on the detection seat (1), characterized in that: The clamp assembly (2) comprises a bottom cover (14) rotatably connected to the detection seat (1), and the top outer wall of the bottom cover (14) is fixedly connected to a clamp seat (9), the top outer wall of the clamp seat (9) is provided with three equally spaced rectangular openings (10), and the inner walls of the three rectangular openings (10) are slidably connected to clamp blocks (11), one side outer walls of the three clamp blocks (11) are fixedly connected to rubber pads, the inner wall of the clamp seat (9) is fixedly connected to a fixing plate (15), and the top outer wall of the fixing plate (15) is rotatably connected to a rotating disk (12), the top outer wall of the rotating disk (12) is provided with three equally spaced arc openings (13), the bottom outer walls of the three clamp blocks (11) are rotatably connected to rotating wheels (16), and the rotating wheels (16) are in contact with the inner walls of the arc openings (13).

2. A contact type high precision micro parts measuring instrument according to claim 1, characterized in that: The outer wall at the bottom of the fixed plate (15) is rotatably connected to a driving gear (17), and one end of a transmission shaft of the driving gear (17) is fixedly connected to the rotating disk (12).

3. A contact type high precision micro parts measuring instrument according to claim 2, characterized in that: The outer wall of the bottom of the fixing plate (15) is rotatably connected with a screw rod (19), and the outer wall of the screw rod (19) is threadedly connected with a rack (18), and the rack (18) and the driving gear (17) are meshed with each other.

4. A contact type high precision micro parts measuring instrument according to claim 3, characterized in that: The outer wall at the bottom of the fixed plate (15) is fixedly connected to a sliding rod (20), and the rack (18) is slidably connected to the outer wall of the sliding rod (20).

5. A contact type high precision micro parts measuring instrument according to claim 4, characterized in that: One end of the screw rod (19) is fixedly connected to a second gear (23), the bottom outer wall of the fixed plate (15) is fixedly connected to a servo motor (21), and the output shaft of the servo motor (21) is fixedly connected to a first gear (22) meshing with the second gear (23).

6. A contact type high precision micro parts measuring instrument according to claim 5, characterized in that: The detection assembly (3) comprises a mounting seat (4) fixedly connected to the detection seat (1), and a sliding opening is provided on an outer wall of one side of the mounting seat (4), an electric slide rail is fixedly connected to the inner wall of the sliding opening, and a sliding seat (5) is slidably connected to the electric slide rail.

7. A contact type high precision micro parts measuring instrument according to claim 6, characterized in that: An electric telescopic rod (6) is fixedly connected to the outer wall of the sliding seat (5), and a detector mounting seat (7) is fixedly connected to the output shaft of the electric telescopic rod (6).

8. A contact type high precision micro parts measuring instrument according to claim 7, characterized in that: A control panel (8) is fixedly connected to an outer wall of one side of the mounting seat (4), and the control panel (8) is electrically connected to the electric telescopic rod (6) and the servo motor (21).

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