Three-coordinate high-efficiency fixed plate measuring device

Abstract

The utility model relates to the technical field of measuring devices, in particular to a three-coordinate efficient measuring device for a fixed plate. According to the technical scheme, the device comprises a negative pressure pump, a motor, a fixing plate and clamping plates, a mounting groove is formed in the fixing plate, the motor is arranged on one side of an opening of the mounting groove, a screw located in the mounting groove is arranged at the output end of the motor, the clamping plates are arranged in the upper end of the mounting groove, and threaded sleeves are arranged at the lower ends of the clamping plates; and the threaded sleeve is rotationally connected to the outer wall of the threaded rod in a sleeving mode, a negative pressure chamber is formed in the fixing plate, a through hole is formed in the upper end of the fixing plate, and symmetrically-distributed negative pressure pumps are arranged on one side of the fixing plate. According to the utility model, through the cooperation between the fixed clamping structure and the adsorption clamping structure in the fixed plate, the problems that when the three-coordinate measuring instrument is used, the clamp is placed on a working table, the clamp deviates, the clamping stability effect is lost, and the three-coordinate measuring accuracy is influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, in particular to a three-coordinate high-efficiency fixed plate measuring device. Background Art

[0002] A three-coordinate measuring machine is used in the process of measuring injection molded parts. The three-coordinate measuring technology is a precise measurement method used to measure and inspect the size, shape and position of objects. The three-coordinate measuring instrument usually consists of a fixed base, a movable measuring arm or guide rail and a measuring sensor. The measuring arm can move accurately in three coordinate directions and can record the coordinate values ​​of the measuring points.

[0003] Publication number CN208567789U was retrieved, which disclosed a composite three-coordinate measuring instrument, including a marble base and a work platform, a Y-axis transmission mechanism is provided on the rear side of the marble base, a workbench glass is arranged in parallel on the work platform, and an automatic switching probe mechanism is provided on one side of the surface of the work platform, columns are provided on both sides of the surface of the marble base, and an X-axis crossbeam is connected to the upper end of the column, and a mobile mounting plate is provided on the Z-axis transmission mechanism, and an optical imaging mechanism is provided on the mobile mounting plate. The key to the composite three-coordinate measurement is to realize conventional three-dimensional measurement on the basis of two-dimensional measurement, and 3D digital model can be imported for non-contact measurement of plane two-dimensional, and contact measurement can also be performed using the probe module, and interactive use, that is, it has all the functions of a two-dimensional image measuring instrument, and also has three-coordinate basic functions, which fully meets the measurement needs of most products and greatly facilitates customers.

[0004] This patented technology has significant advantages when used, but it still has some shortcomings. During use, the workpiece is placed on the work platform. When the injection molding is tested, it is clamped by a fixture, and the fixture is placed on the work table. During the test, the fixture itself has the problem of offset, and the clamping effect is lost, which affects the accuracy of the three-coordinate measurement. For this reason, we propose a three-coordinate efficient fixed plate measurement device to solve the existing problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose a three-coordinate high-efficiency fixed plate measuring device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-coordinate high-efficiency fixed plate measuring device, comprising a negative pressure pump, a motor, a fixed plate and a clamping plate, characterized in that: an installation groove is opened inside the fixed plate, a motor is arranged on one side of the opening of the installation groove, a screw located inside the installation groove is arranged at the output end of the motor, a threaded sleeve is arranged at the lower end of the clamping plate, the threaded sleeve is rotatably sleeved on the outer wall of the screw, the threads of the outer wall of the screw are relatively distributed, a symmetrically distributed negative pressure chamber is opened inside the fixed plate, two groups of through holes distributed in a rectangular array are arranged on the upper end of the fixed plate, and a symmetrically distributed negative pressure pump is arranged on one side of the fixed plate.

[0007] Preferably, a bearing bracket is provided on the inner wall of one side of the installation groove, and one end of the screw rod is rotatably plugged into the inner wall of the bearing bracket. The screw rod is rotatably supported inside the installation groove by the bearing bracket.

[0008] Preferably, the threaded sleeve is provided with sliders at both ends, the front and rear inner walls of the installation groove are provided with guide rails, and the sliders are slidably installed on the outer wall of the guide rails. The threaded sleeve slides on the outer wall of the guide rails through the sliders, and the threaded sleeve is guided to slide horizontally when in use.

[0009] Preferably, the through hole and the negative pressure chamber are interconnected, and the negative pressure suction force inside the negative pressure chamber acts on the upper part of the fixing plate through the through hole.

[0010] Preferably, the suction end of the negative pressure pump is provided with a suction pipe, one end of which passes through the fixing plate and is located inside the negative pressure chamber. The suction force of the negative pressure pump acts on the inside of the negative pressure chamber through the suction pipe.

[0011] Preferably, the negative pressure pump and the lower end of the motor are both provided with a mounting plate, one end of the mounting plate is connected to the outer wall of one side of the fixing plate, and the lower end of the mounting plate is at a higher level than the lower end of the fixing plate. The mounting plate supports and fixes the lower ends of the negative pressure pump and the motor to one side of the fixing plate, and when the fixing plate is placed on a flat workbench, the mounting plate is prevented from obstructing the placement of the fixing plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model places a fixed plate on the working platform of a three-coordinate measuring instrument, and the relatively movable clamping plate clamps the measured injection molded part, and the clamp is fixed inside the fixed plate, so as to avoid the problem that the clamp itself moves when clamping the injection molded part and affects the accuracy of three-coordinate detection. At the same time, the through holes distributed inside the fixed plate can adsorb and fix the workpiece to be measured placed on the upper end of the fixed plate when negative pressure is generated inside the fixed plate. During the three-coordinate detection, a variety of fixing methods are provided, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a top view of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the splint of the utility model from top view;

[0017] Figure 4 It is a schematic diagram of a partial side sectional three-dimensional structure of a fixing plate of the utility model.

[0018] Figure numerals: 1. negative pressure pump; 2. motor; 3. suction pipe; 4. through hole; 5. fixing plate; 6. mounting groove; 7. clamping plate; 8. screw; 9. guide rail; 10. threaded sleeve; 11. bearing bracket; 12. slider; 13. support block; 14. negative pressure chamber. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-Figure 4 As shown, the utility model proposes a three-coordinate high-efficiency fixed plate measuring device, including a negative pressure pump 1, a motor 2, a fixed plate 5 and a clamping plate 7, a mounting groove 6 is opened inside the fixed plate 5, a motor 2 is arranged on one side of the opening of the mounting groove 6, a screw 8 located inside the mounting groove 6 is arranged at the output end of the motor 2, a bearing bracket 11 is arranged on the inner wall of one side of the mounting groove 6, one end of the screw 8 is rotatably inserted into the inner wall of the bearing bracket 11, a symmetrically distributed clamping plate 7 is arranged inside the upper end of the mounting groove 6, a support block 13 is arranged at the opposite end of the clamping plate 7, a threaded sleeve 10 is arranged at the lower end of the clamping plate 7, the threaded sleeve 10 is rotatably sleeved on the outer wall of the screw 8, the threads of the outer wall of the screw 8 are relatively distributed, sliders 12 are arranged at the front and rear ends of the threaded sleeve 10, guide rails 9 are arranged on the inner walls of the front and rear sides of the mounting groove 6, and the slider 12 is slidably installed on the outer wall of the guide rail 9.

[0021] Based on the implementation steps of Example 1: the fixed plate 5 is placed on the working table of the three-dimensional coordinate measuring instrument, the special-shaped injection molded part or the processed part is suspended at the center of the processing table, the motor 2 is operated to drive the screw 8 to rotate, because the threaded sleeve 10 is guided, the internal thread of the threaded sleeve 10 is pushed, and the clamping plate 7 moves relatively through the opposite threads, and the lower end of the injection molded part is supported by the support block 13. The clamping plate 7 clamps and fixes the injection molded part. The clamping device is inside the fixed plate 5, which avoids the problem of instability of the fixture placed on the working table. The clamped injection molded part is stable during detection, which is too high for the precise detection of the three coordinates.

[0022] like Figure 1-Figure 4 As shown, compared with the first embodiment, the three-coordinate high-efficiency fixed plate measuring device proposed by the utility model further includes: a symmetrically distributed negative pressure chamber 14 is opened inside the fixed plate 5, and two groups of through holes 4 distributed in a rectangular array are arranged on the upper end of the fixed plate 5, and the through holes 4 and the negative pressure chamber 14 are interconnected; a symmetrically distributed negative pressure pump 1 is arranged on one side of the fixed plate 5, and a suction pipe 3 is arranged at the extraction end of the negative pressure pump 1, one end of the suction pipe 3 passes through the fixed plate 5 and is located inside the negative pressure chamber 14, and a mounting plate is arranged at the lower end of the negative pressure pump 1 and the motor 2, and one end of the mounting plate is connected to the outer wall of one side of the fixed plate 5, and the horizontal height of the lower end of the mounting plate is higher than the lower end of the fixed plate 5.

[0023] In this embodiment, the workpiece with a relatively flat bottom is directly placed on the fixed plate 5, and the suction force of the suction pump acts on the inside of the negative pressure chamber 14 through the suction pipe 3, and acts on the workpiece through the through hole 4. When performing three-coordinate detection, the workpiece with a relatively flat bottom is efficiently and conveniently adsorbed and fixed. With multiple fixing methods, the three-coordinate measuring instrument is more flexible and convenient to use.

[0024] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A three-coordinate high-efficiency fixed plate measuring device, comprising a negative pressure pump (1), a motor (2), a fixed plate (5) and a clamping plate (7), characterized in that: The fixing plate (5) is provided with a mounting groove (6) inside, a motor (2) is arranged on one side of the opening of the mounting groove (6), a screw (8) located inside the mounting groove (6) is arranged at the output end of the motor (2), symmetrically distributed clamping plates (7) are arranged inside the upper end of the mounting groove (6), a support block (13) is arranged at the opposite end of the clamping plates (7), a threaded sleeve (10) is arranged at the lower end of the clamping plates (7), the threaded sleeve (10) is rotatably sleeved on the outer wall of the screw (8), the threads of the outer wall of the screw (8) are relatively distributed, the fixing plate (5) is provided with symmetrically distributed negative pressure chambers (14), the upper end of the fixing plate (5) is provided with two groups of through holes (4) distributed in a rectangular array, and a symmetrically distributed negative pressure pump (1) is arranged on one side of the fixing plate (5).

2. A three-coordinate high-efficiency fixed plate measuring device according to claim 1, characterized in that: A bearing bracket (11) is provided on the inner wall of one side of the installation groove (6), and one end of the screw rod (8) is rotatably inserted into the inner wall of the bearing bracket (11).

3. A three-coordinate high-efficiency fixed plate measuring device according to claim 1, characterized in that: Slide blocks (12) are provided at both the front and rear ends of the threaded sleeve (10), guide rails (9) are provided at both the front and rear inner walls of the mounting groove (6), and the slide blocks (12) are slidably mounted on the outer walls of the guide rails (9).

4. A three-coordinate high-efficiency fixed plate measuring device according to claim 1, characterized in that: The through hole (4) and the negative pressure chamber (14) are interconnected.

5. The three-coordinate high-efficiency fixed plate measuring device according to claim 1, characterized in that: The extraction end of the negative pressure pump (1) is provided with a suction pipe (3), one end of which passes through the fixing plate (5) and is located inside the negative pressure chamber (14).

6. A three-coordinate high-efficiency fixed plate measuring device according to claim 1, characterized in that: The negative pressure pump (1) and the motor (2) are both provided with a mounting plate at their lower ends, one end of the mounting plate being connected to an outer wall of one side of the fixing plate (5), and the lower end of the mounting plate is at a higher level than the lower end of the fixing plate (5).

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