Three-coordinate measuring clamp

Abstract

The utility model relates to the field of clamps, in particular to a three-coordinate measuring clamp which comprises a fixing seat, adjusting grooves are formed in the two ends of the outer wall of the top of the fixing seat, transmission grooves are formed in the outer wall, located at the ends of the adjusting grooves, of the fixing seat, and adjusting structures are rotationally connected in the adjusting grooves and the transmission grooves. The top outer wall of the fixed seat is slidably connected with an adjusting assembly at the adjusting groove, and the center of one end of the fixed seat is in threaded connection with a fixing screw. The adjusting structure comprises an adjusting screw rod rotationally connected to the center of the adjusting groove, a belt wheel installed at one end of the adjusting screw rod and located in the transmission groove, and auxiliary wheels installed at the two ends of the transmission groove and located on the two sides of the belt wheel. According to the utility model, the casting part is placed on the fixing seat and is fixed by the fixing screw, and the adjusting screw rod rotates to drive the measuring screw rod to move to the casting part, so that the casting part is measured, comparison is facilitated, and whether the workpiece is qualified or not is judged conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to a three-coordinate measuring fixture. Background Art

[0002] The method of pouring liquid metal into a casting cavity that is adapted to the shape of the part and waiting for it to cool and solidify to obtain a part or blank is called casting. The casting obtained by casting is called a casting;

[0003] After the casting is produced, the workpiece needs to be measured to ensure that the casting meets the requirements, and the casting needs to be processed after measurement. The traditional measurement method is to use the same mold as the casting to see whether the casting can be placed inside the mold to determine whether the casting is qualified. However, the shape of the casting blank is irregular and the shape varies greatly. The general measuring fixture uses the blank shape to position and press, and the positioning error is large. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems and shortcomings and proposes a three-coordinate measuring fixture: a bidirectional screw drives an extension rod to move to the two end positions of one side of a workpiece, and the measuring screw is rotated into a threaded hole until one end of the measuring screw contacts the workpiece. With the adjustment of the measuring screw, the extended lengths of the measuring screws at both ends of the workpiece are made consistent, which facilitates positioning measurement and improves accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A three-coordinate measuring fixture comprises a fixed seat, both ends of the top outer wall of the fixed seat are provided with adjustment grooves, and the outer wall of the fixed seat at one end of the adjustment groove is provided with a transmission groove, an adjustment structure is rotatably connected with the adjustment groove and the transmission groove, and an adjustment component is slidably connected with the top outer wall of the fixed seat at the adjustment groove, and a fixing screw is threadedly connected at the center of one end of the fixed seat; the adjustment structure comprises an adjustment screw rotatably connected at the center of the adjustment groove, a pulley installed at one end of the adjustment screw at the transmission groove, and auxiliary wheels installed at both ends of the transmission groove at both sides of the pulley;

[0007] The adjustment assembly includes an adjustment plate slidably connected to the outer wall of the top of the fixing seat and an adjustment hole opened at the center of the adjustment plate;

[0008] One side outer wall of the workpiece is completely fitted with the outer wall of the fixing seat and the supporting block, and the fixing screw is rotated, and one end of the fixing screw cooperates with the fixing seat to fix the standard workpiece, which is convenient for fixing.

[0009] Preferably, the cross-section of the fixing seat is a "concave"-shaped structure, and support blocks are installed on the outer walls of the top of the fixing seat close to one end of the outer wall.

[0010] Preferably, the outer wall of the pulley is rotatably connected to a belt, and one side outer wall of the belt is slidably connected to the outer wall of the auxiliary wheel.

[0011] Preferably, a micro motor is installed on the outer wall of one end of the fixing seat at one end of the adjusting screw, and the output shaft of the micro motor is connected to one end of the adjusting screw.

[0012] Preferably, the adjustment plate is rotatably connected to a bidirectional screw at the center of the adjustment hole, and both ends of the bidirectional screw are threadedly connected to an extension rod, and a threaded hole is opened at the center of the outer wall of the other end of the extension rod;

[0013] Place the casting on a fixed seat and fix it with a fixing screw. The adjusting screw is rotated to drive the measuring screw to move to the casting to measure the casting for easy comparison and judgment of whether the workpiece is qualified.

[0014] Preferably, a measuring screw is rotatably connected to the threaded hole at one end of the extension rod, and a knob is welded to the outer wall of the top end of the bidirectional screw, and the outer wall of one end of the extension rod is slidably connected to the outer wall of the adjustment hole of the adjustment plate;

[0015] The bidirectional screw drives the extension rod to move to the two ends of one side of the workpiece, and the measuring screw is rotated into the threaded hole until one end of the measuring screw contacts the workpiece. As the measuring screw is adjusted, the extended lengths of the measuring screws at both ends of the workpiece are consistent, which facilitates positioning measurement and improves accuracy.

[0016] Preferably, an adjusting block is installed on the bottom outer wall of the adjusting plate, the adjusting block is slidably connected to the outer wall of the adjusting groove, and the adjusting block is threadedly connected to the adjusting screw.

[0017] Preferably, the micromotor is connected to the switch via a wire, and the switch is connected to the power supply via a wire.

[0018] The beneficial effects of the utility model are:

[0019] 1. The outer wall of one side of the workpiece is completely in contact with the outer wall of the fixing seat and the support block. Rotate the fixing screw, and one end of the fixing screw cooperates with the fixing seat to fix the standard workpiece for easy fixation;

[0020] 2. Place the casting on the fixed seat and fix it with the fixing screw. The adjusting screw rotates to drive the measuring screw to move to the casting. The casting is measured to facilitate comparison and judgment of whether the workpiece is qualified.

[0021] 3. The bidirectional screw drives the extension rod to move to the two ends of one side of the workpiece, and rotates the measuring screw into the threaded hole until one end of the measuring screw contacts the workpiece. As the measuring screw is adjusted, the extended lengths of the measuring screws at both ends of the workpiece are consistent, which facilitates positioning measurement and improves accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a three-coordinate measuring fixture proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the top structure of a three-coordinate measuring fixture proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of a three-coordinate measuring fixture proposed by the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the structure of an adjustment plate of a three-coordinate measuring fixture.

[0026] In the figure: 1 fixed seat, 2 adjustment slot, 3 transmission slot, 4 adjustment structure, 5 fixing screw, 6 adjustment assembly, 7 adjustment screw, 8 pulley, 9 auxiliary wheel, 10 belt, 11 adjustment block, 12 adjustment plate, 13 adjustment hole, 14 bidirectional screw, 15 extension rod, 16 measuring screw, 17 micro motor, 18 support block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1:

[0029] Reference Figure 1-4 A three-coordinate measuring fixture comprises a fixed seat 1, both ends of the top outer wall of the fixed seat 1 are provided with adjustment slots 2, and the outer wall of the fixed seat 1 located at one end of the adjustment slot 2 is provided with a transmission slot 3, an adjustment structure 4 is rotatably connected between the adjustment slot 2 and the transmission slot 3, and an adjustment component 6 is slidably connected to the top outer wall of the fixed seat 1 located at the adjustment slot 2, a fixing screw 5 is threadedly connected at the center of one end of the fixed seat 1, a support block 18 at one end of the fixed seat 1 is fitted with an outer wall of one side of the casting, and the rotation of the fixing screw 5 makes one end of it contact with one end of the workpiece, and the workpiece is supported, thereby completing the fixation of the workpiece;

[0030] The cross section of the fixing seat 1 is a "concave"-shaped structure, and the outer walls of the top of the fixing seat 1 close to one end are both installed with support blocks 18;

[0031] The adjustment assembly 6 includes an adjustment plate 12 slidably connected to the outer wall of the top of the fixing seat 1 and an adjustment hole 13 opened at the center of the adjustment plate 12. The adjustment plate 12 is threadedly connected to the adjustment screw 7 through the adjustment block 11 and moves on the fixing seat 1 to maintain stability during the movement process;

[0032] A micro motor 17 is installed on the outer wall of one end of the fixing seat 1 at one end of the adjusting screw 7, and the output shaft of the micro motor 17 is connected to one end of the adjusting screw 7;

[0033] The adjusting plate 12 is located at the center of the adjusting hole 13 and is rotatably connected with a bidirectional screw 14, and the outer walls of both ends of the bidirectional screw 14 are threadedly connected with an extension rod 15, and a threaded hole is opened at the center of the outer wall of the other end of the extension rod 15. The rotation of the bidirectional screw 14 drives the extension rod 15 to move. One end of the measuring screw 16 on the extension rod 15 avoids burrs on the casting during measurement, facilitates adjustment, and improves measurement accuracy;

[0034] A measuring screw 16 is rotatably connected in the threaded hole at one end of the extension rod 15, and a knob is welded on the top outer wall of the bidirectional screw 14. The outer wall of one end of the extension rod 15 is slidably connected to the outer wall of the adjustment hole 13 of the adjustment plate 12. After the workpiece is fixed, the micro motor 17 is started to drive the adjustment screw 7 to move. The adjustment screw 7 drives the adjustment plate 12 and the adjusted measuring screw 16 to move to the workpiece, and the workpiece is compared to see if it meets the standard, which is convenient for measurement.

[0035] An adjusting block 11 is installed on the bottom outer wall of the adjusting plate 12, and the adjusting block 11 is slidably connected to the outer wall of the adjusting groove 2. The adjusting block 11 is threadedly connected to the adjusting screw 7. The bidirectional screw 14 on the adjusting plate 12 rotates so that one end of the extension rod 15 is located at the upper and lower ends of the workpiece, and the rotating measuring screw 16 moves on the extension rod 15, and the extended length of the measuring screw 16 is adjusted to be the same, so as to complete the positioning adjustment of the workpiece, which is convenient for adjusting the workpiece and facilitating positioning;

[0036] The micromotor 17 is connected to the switch through a wire, and the switch is connected to the power supply through a wire. The micromotor 17 drives one adjusting screw 7 to rotate, and the other adjusting screw 7 is driven by the transmission of the pulley 8 and the belt 10, so as to facilitate the synchronous rotation of the adjusting screw 7.

[0037] Embodiment 2:

[0038] Reference Figure 1-3 The adjusting structure 4 includes an adjusting screw 7 rotatably connected to the center of the adjusting groove 2, a pulley 8 installed at one end of the adjusting screw 7 at the transmission groove 3, and auxiliary wheels 9 installed at both ends of the transmission groove 3 at both sides of the pulley 8. The auxiliary wheels 9 are located at both sides of one end of the pulley 8 to support the belt 10 to prevent the belt 10 from contacting with the fixed seat 1 to avoid wear;

[0039] The outer wall of the pulley 8 is rotatably connected to a belt 10 , and one side outer wall of the belt 10 is slidably connected to the outer wall of the auxiliary wheel 9 .

[0040] Working principle: When in use, place a standard workpiece at one end of the fixing seat 1, and the outer wall of one side of the workpiece is completely in contact with the outer wall of the fixing seat 1 and the support block 18. Rotate the fixing screw 5, and one end of the fixing screw 5 cooperates with the fixing seat 1 to fix the standard workpiece. Start the micro motor 17 to rotate through the adjusting screw 7. The adjusting screw 7 drives another adjusting screw 7 through the pulley 8 and the belt 10, so that the adjusting screw 7 rotates synchronously and moves the adjusting plate 12 to one end of the adjusting slot 2. Rotate the bidirectional screw 14 in the adjusting plate 12, and the bidirectional screw 14 drives the extension The rod 15 moves to the two ends of one side of the workpiece, and the measuring screw 16 is rotated into the threaded hole until one end of the measuring screw 16 is aligned with the workpiece base. As the measuring screw 16 is adjusted, the extended lengths of the measuring screws 16 at both ends of the workpiece are consistent. At this time, the workpiece is also positioned in a fixed position. After loosening the fixing screw 5, the standard workpiece is removed, the casting is placed on the fixing seat 1 and fixed with the fixing screw 5. The adjusting screw 7 rotates to drive the measuring screw 16 to move to the casting, and the casting is measured. If the casting meets the standard range, subsequent processing can be carried out.

[0041] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A three-coordinate measuring fixture, comprising a fixed seat (1), characterized in that: Both ends of the top outer wall of the fixing seat (1) are provided with adjustment grooves (2), and a transmission groove (3) is provided on the outer wall of the fixing seat (1) at one end of the adjustment groove (2), an adjustment structure (4) is rotatably connected between the adjustment groove (2) and the transmission groove (3), and an adjustment component (6) is slidably connected to the top outer wall of the fixing seat (1) at the adjustment groove (2), and a fixing screw (5) is threadedly connected at the center of one end of the fixing seat (1); The adjusting structure (4) comprises an adjusting screw (7) rotatably connected to the center of the adjusting groove (2), a belt pulley (8) installed at one end of the adjusting screw (7) and located at the transmission groove (3), and auxiliary wheels (9) installed at both ends of the transmission groove (3) and located on both sides of the belt pulley (8); The adjustment component (6) comprises an adjustment plate (12) slidably connected to the top outer wall of the fixing seat (1) and an adjustment hole (13) opened at the center of the adjustment plate (12).

2. A three-coordinate measuring fixture according to claim 1, characterized in that: The cross section of the fixing seat (1) is a "concave"-shaped structure, and support blocks (18) are installed on the outer walls of the top of the fixing seat (1) close to one end of the outer wall.

3. A three-coordinate measuring fixture according to claim 1, characterized in that: The outer wall of the pulley (8) is rotatably connected to a belt (10), and one side outer wall of the belt (10) is slidably connected to the outer wall of the auxiliary wheel (9).

4. The three-coordinate measuring fixture according to claim 1, characterized in that: A micro motor (17) is installed on the outer wall of one end of the fixing seat (1) at one end of the adjusting screw (7), and the output shaft of the micro motor (17) is connected to one end of the adjusting screw (7).

5. The three-coordinate measuring fixture according to claim 1, characterized in that: The adjusting plate (12) is rotatably connected to a bidirectional screw (14) at the center of the adjusting hole (13), and the outer walls at both ends of the bidirectional screw (14) are threadedly connected to an extension rod (15), and a threaded hole is opened at the center of the outer wall of the other end of the extension rod (15).

6. A three-coordinate measuring fixture according to claim 5, characterized in that: A measuring screw rod (16) is rotatably connected to the threaded hole at one end of the extension rod (15), and a knob is welded to the outer wall of the top end of the bidirectional screw rod (14). The outer wall of one end of the extension rod (15) is slidably connected to the outer wall of the adjustment hole (13) of the adjustment plate (12).

7. The three-coordinate measuring fixture according to claim 1, characterized in that: An adjusting block (11) is installed on the bottom outer wall of the adjusting plate (12). The adjusting block (11) is slidably connected to the outer wall of the adjusting groove (2). The adjusting block (11) is threadedly connected to the adjusting screw (7).

8. The three-coordinate measuring fixture according to claim 4, characterized in that: The micromotor (17) is connected to the switch via a wire, and the switch is connected to the power supply via a wire.

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