Multi-rotation part measuring and fixing device and use method thereof

Abstract

The invention relates to a multi-rotation part measuring and fixing device and a using method thereof, the fixing device comprises a base, a clamping assembly and limiting rebounding assemblies, the limiting rebounding assemblies are symmetrically installed at the left end and the right end of the clamping assembly, and the clamping assembly and the limiting rebounding assemblies are used for clamping parts. According to the multi-rotation part measuring and fixing device and the using method thereof, operation is simple and easy, multi-rotation parts can be measured, part fixing is stable and accurate, and the part measuring efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of precision measurement technology, and in particular to a multi-rotation part measuring fixture and a use method thereof. Background Art

[0002] Rotary parts are common parts in daily processing, and they require many precision measurement items, especially dimensional measurement. The fixing method of the precision measurement process of rotary parts directly affects the measurement quality and efficiency. The existing fixing method is to lean against or clamp with pliers, which is only suitable for single part measurement. The fixing is unstable and inaccurate, resulting in low part measurement efficiency and difficulty in achieving fast measurement. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a multi-rotation part measuring and fixing device and a use method thereof, which is simple and easy to operate, can measure multi-rotation parts, fix the parts stably and accurately, and improve the part measurement efficiency.

[0004] The present invention solves the technical problem by the following technical solutions:

[0005] A multi-rotation part measuring and fixing device comprises a base, a clamping assembly and a limit rebound assembly, wherein the limit rebound assembly is symmetrically mounted at the left and right ends of the clamping assembly, and the clamping assembly and the limit rebound assembly are used for clamping parts;

[0006] The upper working surface of the base is parallel to a limit block slide groove, a screw through hole slide groove is formed between the limit block slide grooves, a threaded hole is formed in the middle of the upper working surface of the base, and a nut slide groove is parallel to the lower working surface of the base, and the screw through hole slide groove and the nut slide groove are coaxially arranged;

[0007] The clamping assembly includes a push bar and a limit column, the left and right end surfaces of the push bar are formed with grooves, the middle part of the push bar is formed with a limit column through hole slide groove, the limit column is installed on the limit column through hole slide groove, and is fixed on the threaded hole formed in the middle part of the upper working surface of the base, and the push bar slides along the limit column direction;

[0008] The limit rebound assembly includes a limit block, a top column, a positioning block and a spring, the top of the limit block is formed with two grooves, the bottom of the two grooves is formed with a top column blind hole, the spring is placed in the top column blind hole, the middle of the limit block is formed with a hollow groove for placing the positioning block, the bottom of the limit block is formed with a top column through hole, the left and right sides of the lower end of the limit block are formed with limit strips adapted to the limit block slide groove, the middle of the upper end of the positioning block is formed with a sink groove, the center of the sink groove is formed with a screw hole, the front end of the positioning block is formed with a threaded sink hole, the positioning block is installed in the hollow groove of the limit block through the top column, and supports the top column through hole, the threaded sink hole and the top column blind hole in sequence and supports the spring, and the positioning block is slidably positioned in the screw through hole slide groove formed on the upper working surface of the base through a screw and a nut placed on the nut slide groove.

[0009] Furthermore, the groove one is a trapezoidal groove one.

[0010] Furthermore, the second groove is a second V-shaped groove.

[0011] Furthermore, the hollow groove is a rectangular hollow groove.

[0012] Furthermore, the sink is a square sink.

[0013] A method for using a multi-rotation part measuring fixture comprises the following steps:

[0014] Step 1. Place the fixture at an appropriate position on the workbench, and adjust the position of the clamping assembly and the limit rebound assembly: make the groove 1 of the push strip correspond to the groove 2 of the limit block, loosen the screws and nuts to drive the limit block and the positioning block to slide on the screw through hole slide and the nut slide, and adjust the placement position of the parts;

[0015] Step 2: Place the parts between the groove 1 of the push bar and the groove 2 of the limit block, and tighten the screws and nuts to position the limit block and the positioning block on the base;

[0016] Step 3: Push the push bar to slide along the direction of the limit column. The protruding ends on the left and right ends of the push bar contact the part, and the limit block elastically retracts to complete the part clamping and fixing, and then measure the part.

[0017] Step 4: After the part measurement is completed, push the push bar to slide in the opposite direction of the limit column. The grooves on the left and right ends of the push bar contact the part, and the limit block elastically returns to the placement state before the part is fixed.

[0018] The advantages and positive effects of the present invention are:

[0019] 1. The multi-rotation part measuring and fixing device of the present invention has a limit block slide slot parallel to the upper working surface of the base, the limit block slide slots are configured in even numbers, screw through hole slide slots are formed between the limit block slide slots, a threaded hole is formed in the middle of the upper working surface of the base, a nut slide slot is parallel to the lower working surface of the base, the nut slide slots are configured in odd numbers, and the screw through hole slide slots and the nut slide slots are coaxially arranged. The base supports and connects the clamping assembly and the limit rebound assembly, and the screw through hole slide slots and the nut slide slots are used for positioning and fixing the positioning block.

[0020] 2. The multi-rotation part measuring and fixing device of the present invention comprises a push bar and a limit column. The push bar is a rectangular symmetrical structure. The left and right end surfaces of the push bar are provided with a trapezoidal groove. The length of the concave working surface of the trapezoidal groove is the same as the length of the protruding working surface. The length of the concave working surface of the trapezoidal groove is twice the length of the short protruding working surface at both ends of the push bar. The middle part of the push bar is provided with a limit column through-hole slide. The width of the limit column through-hole slide is greater than the diameter of the middle column of the limit column, so as to ensure that the push bar and the limit column can slide relative to each other.

[0021] 3. The measuring and fixing device for multi-rotation parts of the present invention, the screw part of the limit column is installed on the slide groove of the limit column through hole, and is fixed on the threaded hole formed in the middle of the upper working surface of the base, and the push bar slides along the direction of the limit column. The limit column is used to limit the moving direction and position of the push bar.

[0022] 4. The multi-rotation part measuring and fixing device and the use method thereof of the present invention are simple and easy to operate, can measure multi-rotation parts, and the parts are fixed stably and accurately, thereby improving the efficiency of part measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the assembly parts of the multi-rotation parts measuring and fixing device of the present invention;

[0024] Figure 2 It is a plan view of the assembly parts of the multi-rotation parts measuring fixture of the present invention;

[0025] Figure 3 A three-dimensional diagram of the clamped parts of the multi-rotation parts measuring and fixing device of the present invention;

[0026] Figure 4 It is a plan view of the clamped parts of the multi-rotation parts measuring and fixing device of the present invention;

[0027] Figure 5 A three-dimensional diagram of the multi-rotation parts measuring fixture of the present invention;

[0028] Figure 6 It is a plan view of the multi-rotation parts measuring fixture of the present invention;

[0029] Figure 7It is a cross-sectional view of the multi-rotation parts measuring fixture of the present invention;

[0030] Figure 8 A three-dimensional view of the working surface at the upper end of the base of the multi-rotation parts measuring and fixing device of the present invention;

[0031] Fig. 9 A three-dimensional view of the working surface at the lower end of the base of the multi-rotation parts measuring and fixing device of the present invention;

[0032] Fig.10 It is a plan view of the working surface at the lower end of the base of the multi-rotation parts measuring and fixing device of the present invention;

[0033] Fig.11 A three-dimensional diagram of a limit block of a multi-rotational parts measuring and fixing device of the present invention;

[0034] Fig.12 A cross-sectional view of a limit block of a multi-rotation part measuring and fixing device of the present invention;

[0035] Fig.13 A three-dimensional diagram of a positioning block of a multi-rotational parts measuring and fixing device of the present invention;

[0036] Fig.14 A three-dimensional diagram of the top column of the multi-rotation parts measuring and fixing device of the present invention;

[0037] Fig.15 A three-dimensional diagram of a push bar of a multi-rotational parts measuring and fixing device of the present invention;

[0038] Fig.16 It is a plan view of the push bar of the multi-rotation parts measuring and fixing device of the present invention;

[0039] Fig.17 A three-dimensional diagram of the limit column of the multi-rotation part measuring and fixing device of the present invention;

[0040] In the figure:

[0041] 1- card assembly, 11- push bar, 12- limit column, 13- groove 1, 14- limit column through hole slide, 2- parts, 3- limit rebound assembly, 31- limit block, 32- limit bar, 33- groove 2, 34- top column blind hole, 35- top column through hole, 36- hollow groove, 37- positioning block, 37.1- countersunk groove, 37.2- screw hole, 37.3- threaded countersunk hole, 38- top column, 39- spring, 4- base, 41- limit block slide, 42- screw through hole slide, 43- threaded hole, 44- nut slide. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0043] like Figures 1 to 17 As shown, a multi-rotation part measuring and fixing device comprises a base 4, a clamping assembly 1 and a limit rebound assembly 3, wherein the limit rebound assembly 3 is symmetrically mounted at the left and right ends of the clamping assembly 1, and the clamping assembly 1 and the limit rebound assembly 3 are used to clamp the part 2. The multi-rotation part measuring and fixing device of the present invention can measure multi-rotation parts 2, and the parts 2 are fixed stably and accurately, thereby improving the measurement efficiency of the parts 2.

[0044] The upper working surface of the base 4 is parallel to a limit block slide 41, the limit block slide 41 is configured in an even number, a screw through hole slide 42 is formed between the limit block slide 41, a threaded hole 43 is formed in the middle of the upper working surface of the base 4, and a nut slide 44 is parallel to the lower working surface of the base 4, the nut slide 44 is configured in an odd number, and the screw through hole slide 42 is coaxially arranged with the nut slide 44. The base 4 supports and connects the clamping assembly 1 and the limit rebound assembly 3. The screw through hole slide 42 and the nut slide 44 are used for positioning and fixing the positioning block 37.

[0045] The clamping assembly 1 includes a push bar 11 and a limiting column 12. The push bar 11 is a rectangular symmetrical structure. The left and right end surfaces of the push bar 11 are formed with a trapezoidal groove 13. The length of the concave working surface of the trapezoidal groove 13 is the same as the length of the protruding working surface. The length of the concave working surface of the trapezoidal groove 13 is twice the length of the short protruding working surface at both ends of the push bar 11. A limiting column through-hole slide 14 is formed in the middle of the push bar 11. The width of the limiting column through-hole slide 14 is greater than the diameter of the middle column of the limiting column 12, so as to ensure that the push bar 11 and the limiting column 12 can slide relative to each other.

[0046] The screw part of the limit column 12 is installed on the limit column through hole slide 14, and is fixed on the threaded hole 43 formed in the middle of the upper working surface of the base 4, and the push bar 11 slides along the limit column 12. The limit column 12 is used to limit the moving direction and position of the push bar 11. The screw part of the limit column 12 is threadedly connected with the threaded hole 43 formed in the middle of the upper working surface of the base 4, and the middle column of the limit column 12 is used to limit the movement of the push bar 11 in the XY direction. The length of the middle column of the limit column 12 is greater than the thickness of the push bar 11, and the diameter of the top cap of the limit column 12 is greater than the width of the limit column through hole slide 14, which is used to limit the movement of the push bar 11 in the Z direction.

[0047] The limit rebound assembly 3 includes a limit block 31, a top column 38, a positioning block 37 and a spring 39. The top of the limit block 31 is formed with a V-shaped groove 33 for positioning the part 2. The bottom of the groove 33 is formed with a top column blind hole 34. The spring 39 is placed in the top column blind hole 34. The middle of the limit block 31 is formed with a rectangular hollow groove 36 for placing the positioning block 37. The bottom of the limit block 31 is formed with a top column through hole 35. The diameter of the top column through hole 35 is larger than the diameter of the top column blind hole 34. The left and right sides of the lower end of the limit block 31 are formed with limit strips 32 adapted to the limit block slide groove 41.

[0048] The front end cylinder of the top column 38 cooperates with the blind hole 34 of the top column of the limiting block 31, and the gap between the front end cylinder of the top column 38 and the blind hole 34 of the top column of the limiting block 31 is 0.02mm; the middle threaded part of the top column 38 is used to be screwed on the threaded countersunk hole 37.3 of the positioning block 37, and the rear end cylinder of the top column 38 cooperates with the through hole 35 of the top column of the limiting block 31, and the gap between the rear end cylinder of the top column 38 and the through hole 35 of the top column of the limiting block 31 is 0.02mm.

[0049] The positioning block 37 is a rectangular structure, the length of the positioning block 37 is less than the length of the rectangular hollow groove 36 of the limit block 31, the gap is 0.02mm, the height of the positioning block 37 is the same as the height of the limit block 31, the difference between the width of the positioning block 37 and the width of the rectangular hollow groove 36 of the limit block 31 is greater than the depth of the trapezoidal groove 13 of the push bar 11, and a square positioning block 37.1 is formed in the middle of the upper end of the positioning block 37, and a screw hole 37.2 is formed in the center of the positioning block 37.1. The front end of the positioning block 37 is formed with a threaded countersunk hole 37.3, and the inner wall of the large diameter of the threaded countersunk hole 37.3 is threaded, and the small diameter of the threaded countersunk hole 37.3 is the same as the diameter of the blind hole 34 of the top column of the limit block 31. The positioning block 37 is installed in the hollow groove 36 of the limit block 31 through the top column 38, and supports the top column through hole 35, the threaded countersunk hole 37.3 and the top column blind hole 34 in sequence and supports the spring 39. The positioning block 37 is slidably positioned in the screw through hole groove 42 formed on the upper working surface of the base 4 through the screw and the nut placed on the nut groove 44.

[0050] The base 4 and the push bar 11 are fixed by the limit column 12, and the push bar 11 can slide along the direction of the limit column 12. The limit bars 32 formed on the left and right sides of the lower end of the limit block 31 are installed in cooperation with the limit block slide groove 41 formed on the upper working surface of the base 4. The limit block 31 slides in the direction of the limit block slide groove 41, and the positioning block 37 is placed in the rectangular hollow groove 36 of the limit block 31. The positioning block 37 is slidably fixed in the screw through-hole slide groove 42 of the upper working surface of the base 4 through the screw and the nut in the nut slide groove 44 of the lower working surface of the base 4. The position of the positioning block 37 can be adjusted according to the size of the part 2. The spring 39 is placed in the top column blind hole 34 of the limit block 31, the front end of the top column 38 extends into the top column blind hole 34 of the limit block 31, the middle part of the top column 38 is threadedly connected with the positioning block 37, and the tail end of the top column 38 penetrates into the top column through hole 35. At this time, the spring 39 is stressed, and the positioning block 37 and the end surface of the through hole generate a force.

[0051] The base 4 , the clamping assembly 1 and the limit rebound assembly 3 can be adjusted according to the number of the measured parts 2 .

[0052] Working principle of the present invention:

[0053] The push strip 11 is installed on the upper working surface of the base 4 through the limit column 12, the limit block 31 is slidably installed on the limit block slide groove 41 through the limit strip 32, and the positioning block 37 is installed in the hollow groove 36 of the limit block 31 through the top column 38, which supports the spring 39 that penetrates into the top column through hole 35, the threaded countersunk hole 37.3 and the top column blind hole 34 in sequence and supports the top column blind hole 34. The positioning block 37 is slidably positioned in the screw through hole slide groove 42 formed on the upper working surface of the base 4 through the screw and the nut placed on the nut slide groove 44, and the part 2 is placed between the groove 13 of the push strip 11 and the groove 2 33 of the limit block 31. The screws and nuts are tightened to position the limit block 31 and the positioning block 37 on the base 4, and the push strip 11 is pushed to slide along the direction of the limit column 12. The protruding ends at the left and right ends of the push strip 11 contact the part 2, and the limit block 31 elastically retreats, completing the clamping and fixing of the part 2, and measuring the part 2.

[0054] A method for using a multi-rotation part measuring fixture comprises the following steps:

[0055] Step 1, place the fixture at an appropriate position on the workbench, adjust the positions of the clamping assembly 1 and the limit rebound assembly 3: make the groove 13 of the push strip 11 correspond to the groove 2 33 of the limit block 31, loosen the screws and nuts to drive the limit block 31 and the positioning block 37 to slide on the screw through hole slot 42 and the nut slot 44, and adjust the placement position of the part 2;

[0056] Step 2, place the part 2 between the groove 13 of the push bar 11 and the groove 2 33 of the limit block 31, and tighten the screws and nuts to position the limit block 31 and the positioning block 37 on the base 4;

[0057] Step 3, push the push bar 11 to slide along the direction of the limit column 12, the protruding ends of the push bar 11 on both ends contact the part 2, the limit block 31 elastically retreats, the part 2 is fixed and fixed, and the part 2 is measured;

[0058] Step 4, after the measurement of part 2 is completed, push the push bar 11 to slide in the opposite direction of the limit column 12, the grooves 33 at the left and right ends of the push bar 11 contact the part 2, and the limit block 31 elastically retracts to restore the placement state before the part 2 is fixed.

[0059] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A multi-rotation part measuring fixture, characterized in that: It comprises a base (4), a clamping assembly (1) and a position-limiting rebound assembly (3), wherein the position-limiting rebound assembly (3) is symmetrically mounted at the left and right ends of the clamping assembly (1), and the clamping assembly (1) and the position-limiting rebound assembly (3) are used for clamping a part (2); A limit block slide groove (41) is formed parallel to the upper working surface of the base (4), a screw through hole slide groove (42) is formed between the limit block slide grooves (41), a threaded hole (43) is formed in the middle of the upper working surface of the base (4), a nut slide groove (44) is formed parallel to the lower working surface of the base (4), and the screw through hole slide groove (42) and the nut slide groove (44) are coaxially arranged; The clamping assembly (1) comprises a push bar (11) and a limiting column (12), the left and right end surfaces of the push bar (11) are provided with grooves (13), the middle part of the push bar (11) is provided with a limiting column through hole slide groove (14), the limiting column (12) is installed on the limiting column through hole slide groove (14), and is fixed on a threaded hole (43) provided in the middle part of the upper working surface of the base (4), and the push bar (11) slides along the direction of the limiting column (12); The limit rebound assembly (3) comprises a limit block (31), a top column (38), a positioning block (37) and a spring (39); the top of the limit block (31) is provided with a second groove (33); the bottom of the second groove (33) is provided with a top column blind hole (34); the spring (39) is placed in the top column blind hole (34); the middle of the limit block (31) is provided with a hollow groove (36) for placing the positioning block (37); the bottom of the limit block (31) is provided with a top column through hole (35); the left and right sides of the lower end of the limit block (31) are provided with limit strips (32) adapted to the limit block sliding groove (41); the positioning block A countersunk groove (37.1) is formed in the middle of the upper end of the positioning block (37), and a screw hole (37.2) is formed in the center of the countersunk groove (37.1). A threaded countersunk hole (37.3) is formed at the front end of the positioning block (37). The positioning block (37) is installed in the hollow groove (36) of the limit block (31) through a top column (38), and supports the top column through hole (35), the threaded countersunk hole (37.3) and the top column blind hole (34) in sequence and supports the spring (39). The positioning block (37) is slidably positioned in the screw through hole slide groove (42) formed on the upper working surface of the base (4) through a screw and a nut placed on a nut slide groove (44).

2. The multi-rotation parts measuring fixture according to claim 1, characterized in that: The groove one (13) is a trapezoidal groove one (13).

3. The multi-rotation parts measuring fixture according to claim 1, characterized in that: The second groove (33) is a V-shaped groove (33).

4. The multi-rotation parts measuring fixture according to claim 1, characterized in that: The hollow groove (36) is a rectangular hollow groove (36).

5. The multi-rotation parts measuring fixture according to claim 1, characterized in that: The sink (37.1) is a square sink (37.1).

6. A method for using the multi-rotation parts measuring fixture according to claim 1, characterized in that: The following steps are involved: Step 1. Place the fixture at an appropriate position on the workbench, and adjust the position of the clamping assembly and the limit rebound assembly: make the groove 1 of the push strip correspond to the groove 2 of the limit block, loosen the screws and nuts to drive the limit block and the positioning block to slide on the screw through hole slide and the nut slide, and adjust the placement position of the parts; Step 2: Place the parts between the groove 1 of the push bar and the groove 2 of the limit block, and tighten the screws and nuts to position the limit block and the positioning block on the base; Step 3: Push the push bar to slide along the direction of the limit column. The protruding ends on the left and right ends of the push bar contact the part, and the limit block elastically retracts to complete the part clamping and fixing, and then measure the part. Step 4: After the part measurement is completed, push the push bar to slide in the opposite direction of the limit column. The grooves on the left and right ends of the push bar contact the part, and the limit block elastically returns to the placement state before the part is fixed.

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