Zero-point positioning clamp structure

Abstract

The utility model discloses a zero-point positioning clamp structure, and relates to the technical field of positioning tools, the zero-point positioning clamp structure comprises a clamp body, the clamp body is provided with a plurality of positioning holes, and locking pins are arranged in the positioning holes; mounting grooves are formed in the two sides of the clamp body, fixing blocks are arranged in the mounting grooves, positioning columns are arranged on one sides of the fixing blocks, first mounting holes are formed in the mounting grooves corresponding to the positioning columns, second mounting holes are formed in the positioning holes, and the positioning columns can penetrate through the first mounting holes and the second mounting holes to abut against the locking pins. The fixing block is provided with a first threaded hole, the mounting groove is provided with a second threaded hole corresponding to the first threaded hole, adjusting screws are arranged in the first threaded hole and the second threaded hole, and after the fixture body is positioned, the fixing block drives the positioning column to be pressed on the locking pin by rotating the adjusting screws, so that the locking pin is fixed in the positioning hole. And then the workpiece is fixed on the locking pin for positioning.

Description

Technical Field

[0001] The present application relates to the technical field of positioning tooling, and in particular to a zero-point positioning fixture structure. Background Art

[0002] During the machining process, determining the zero point for machining and measurement is an essential step. When switching between different processes and machine tools, it is usually necessary to re-calibrate the zero point to ensure machining accuracy.

[0003] With regard to the above-mentioned related technologies, it takes a lot of time to align the zero point each time, which reduces the processing efficiency; and it is difficult to ensure complete consistency when re-aligning the positioning, which easily leads to errors. At the same time, the problem of error accumulation will also occur, resulting in defective scrapped products. Utility Model Content

[0004] The purpose of this application is to provide a zero-point positioning fixture structure to improve the problem that repeated zero-point alignment affects processing efficiency and accuracy.

[0005] The zero-point positioning fixture structure provided in this application adopts the following technical solution:

[0006] A zero-point positioning fixture structure includes a clamping body, which is provided with a plurality of positioning holes, and locking pins are provided in each of the positioning holes; mounting grooves are provided on both side walls of the clamping body, a fixing block is provided in the mounting groove, a positioning column is provided on one side of the fixing block, the mounting groove is provided with a mounting hole 1 corresponding to the positioning column, and a mounting hole 2 is provided on the side wall of the positioning hole, the positioning column can pass through the mounting hole 1 and the mounting hole 2 and abut against the locking pin; the fixing block is provided with a threaded hole 1, and the mounting slot is provided with a threaded hole 2 corresponding to the threaded hole 1, and adjustment screws are provided in the threaded hole 1 and the threaded hole 2.

[0007] By adopting the above technical solution, the clamp body is fixed to the machine tool through a threaded connection, and a positioning hole is provided on the clamp body, and a locking pin is installed in the positioning hole; at the same time, mounting grooves are provided on both side walls of the clamp body, a fixing block is installed in the mounting groove, and a number of positioning columns are provided on one side of the fixing block, a mounting hole 1 is provided in the mounting groove, and a mounting hole 2 is provided on the side wall of the positioning hole. At this time, when the fixing block is inserted into the mounting groove, the positioning column will pass through the mounting hole 1, the mounting hole 2 and the locking pin in the positioning hole will be counteracted; and a threaded hole 1 is provided on the fixing blocks on both sides of the clamp body, and corresponding threaded holes are provided in the mounting groove. A threaded hole is provided with two, and adjusting screws are installed in the threaded hole one and the threaded hole two, and the adjusting screw passes through the clamp body; by rotating the adjusting screw, the fixing block drives the positioning column to press against the locking pin, thereby fixing the locking pin; at this time, the zero point of the clamp body is aligned and fixed, and then the workpiece is fixed to the clamp body through the locking pin. The locking pin can be replaced to avoid damage to the locking pin during processing and affect the processing accuracy; since the position of the clamp body is fixed, the position of the workpiece will also be fixed, that is, only the zero point needs to be aligned once in multiple processing, which improves the processing efficiency while also improving the processing stability and reducing the processing error.

[0008] Preferably, one end of the positioning column that is in contact with the locking pin is provided with a positioning fillet, and the positioning fillet can be in contact with the outer side wall of the locking pin.

[0009] By adopting the above technical solution, setting the positioning fillet can increase the contact area between the positioning column and the locking pin, thereby making the locking pin more stably fixed and reducing the processing error of the workpiece.

[0010] Preferably, the inner side wall of the positioning fillet is provided with a limiting groove, and a magnetic member 1 that is magnetically attracted to the locking pin is provided in the limiting groove.

[0011] By adopting the above technical solution, a limiting groove is provided on the inner side wall of the positioning radius, and a magnetic part 1 is installed in the limiting groove. The magnetic force of the magnetic part 1 is utilized to adsorb the locking pin, so that the locking pin is fixed more stably while also increasing the installation speed of the positioning column and improving the installation efficiency.

[0012] Preferably, a positioning groove is provided at the bottom of the positioning hole, and a second magnetic member that is magnetically attracted to the locking pin is provided in the positioning groove.

[0013] By adopting the above technical solution, a positioning groove is provided at the bottom of the positioning hole, and a magnetic part 2 is installed in the positioning groove. The magnetic force of the magnetic part 2 is used to adsorb the locking pin, so that the locking pin is fixed more firmly and the installation efficiency can be improved when installing the locking pin.

[0014] Preferably, a positioning platform is provided in the clamp body, a fixing buckle is provided on the positioning platform, and the adjusting screw can pass through the fixing buckle.

[0015] By adopting the above technical solution, a positioning platform is provided in the clamp body, and a fixing buckle for the adjusting screw is installed on the positioning platform, so that the fixing of the adjusting screw is more stable, thereby making the movement and fixation of the fixing block more stable.

[0016] Preferably, a plurality of guide posts in groups of two are provided on both sides of the fixing buckle.

[0017] By adopting the above technical solution, a group of two guide columns are provided on both sides of the fixing buckle. The guide columns can make it easier to insert the adjusting screw into the fixing buckle, thereby improving the installation efficiency.

[0018] Preferably, a sliding guide rail is provided in the installation groove, and the fixed block is provided with a sliding groove corresponding to the sliding guide rail, and the sliding guide rail can be inserted into the sliding groove.

[0019] By adopting the above technical solution, a sliding guide rail is provided in the installation groove, and a sliding groove is provided on the fixed block. The fixed block can be installed in the installation groove through the sliding guide rail, so that the movement of the fixed block is more stable and the fixed block can be more accurately positioned in the installation groove, thereby improving the installation efficiency of the fixed block.

[0020] Preferably, the sliding guide rail is inserted into the sliding groove and is provided with a guide chamfer on one side.

[0021] By adopting the above technical solution, a guide chamfer is provided on one side of the sliding guide rail, which facilitates the installation of the sliding groove on the sliding guide rail and improves the installation speed of the fixed block.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Set up several positioning holes on the clamp body, and install locking pins in the positioning holes. Use the adjusting screw to press the fixing block and the positioning column against the locking pin to fix the locking pin. At this time, align the clamp body as a whole to the zero point and fix it. Then use the locking pin to fix the workpiece to avoid repeated positioning.

[0024] 2. A positioning platform is provided inside the clamp body, and a fixing buckle is provided on the positioning platform for the adjusting screw to pass through. The fixing buckle makes the fixing of the adjusting screw more stable. At the same time, two guide columns are provided on both sides of the fixing buckle to facilitate the insertion of the adjusting screw into the fixing hole.

[0025] 3. A sliding guide rail is provided in the installation slot for the movement of the fixed block, which facilitates the positioning of the fixed block in the installation slot, improves the installation efficiency, and also makes the installation of the fixed block more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a zero-point positioning fixture structure of the present application.

[0027] Figure 2 It is a partial cross-sectional schematic diagram for illustrating the internal structure of the adjusting screw in the embodiment.

[0028] Figure 3 It is a cross-sectional schematic diagram for illustrating the internal structure of the clamp body in the embodiment.

[0029] Figure 4 yes Figure 3 Enlarged view of part A in .

[0030] In the figure, 1. Clamping body; 11. Positioning hole; 111. Mounting hole 2; 112. Positioning slot; 1121. Magnetic part 2; 12. Mounting slot; 121. Mounting hole 1; 122. Threaded hole 2; 123. Sliding guide rail; 1231. Guide chamfer; 2. Locking pin; 3. Fixing block; 31. Positioning column; 311. Positioning fillet; 3111. Limiting slot; 3112. Magnetic part 1; 32. Threaded hole 1; 33. Sliding slot; 4. Adjusting screw; 5. Positioning platform; 51. Fixing buckle; 52. Guide column. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0032] A zero point positioning fixture structure, referring to Figure 1 and Figure 2 , including a clamp body 1, four positioning holes 11 are provided on the clamp body 1, and locking pins 2 are installed in the positioning holes 11, the locking pins 2 can be used to connect with the workpiece (not shown in the figure), and the locking pins 2 can be easily replaced if damaged, without replacing the clamp body 1; mounting grooves 12 are provided on both sides of the clamp body 1, and a fixing block 3 is provided in the mounting groove 12, and two positioning columns 31 are provided on one side of the fixing block 3, and a mounting hole 121 is provided in the mounting groove 12 at a position corresponding to the positioning column 31, and a mounting hole 2 111 is provided on the side wall of the positioning hole 11, and the positioning column 31 can pass through the mounting hole 121 and the mounting hole 2 111 and insert into the positioning hole 1 1, and against the locking pin 2; a threaded hole 1 32 is provided in the fixing block 3, and a threaded hole 2 122 is provided at the position of the mounting groove 12 corresponding to the threaded hole 1 32, and the adjusting screw 4 is installed through the threaded holes 1 32 and the threaded hole 2 122 on both sides at the same time. At this time, the movement of the fixing block 3 can be controlled by rotating the adjusting screw 4, and the fixing block 3 can be fixed in the mounting groove 12, so that the positioning column 31 is pressed against the side wall of the locking pin 2, thereby fixing the locking pin 2, and then fixing the workpiece. At this time, it is only necessary to align the zero point of the clamp body 1 once, and there is no need to repeatedly position the workpiece fixed on the clamp body 1, which effectively improves the processing efficiency and makes the processing of the workpiece uniform and accurate.

[0033] Reference Figure 3 When the cap 31 is in the unlock position, the locking pin 31 is locked and the locking pin 31 is locked, so the locking pin 31 is locked.

[0034] Reference Figure 2 A positioning platform 5 is provided in the clamp body 1, and a fixing buckle 51 for the adjusting screw 4 to pass through is installed on the positioning platform 5, so that the fixation and rotation of the adjusting screw 4 are more stable; at the same time, two guide columns 52 are provided on both sides of the fixing buckle 51, and the adjusting screw 4 can be inserted into the fixing buckle 51 through the guide columns 52, which facilitates the installation of the adjusting screw 4 and also plays a certain auxiliary fixing role.

[0035] Reference Figure 2 and Figure 4 A sliding guide rail 123 is provided in the installation groove 12, and a sliding groove 33 is provided on the fixed block 3 corresponding to the sliding guide rail 123. The fixed block 3 can be inserted into the sliding groove 33 through the sliding guide rail 123 and moved in the installation groove 12, so that the movement of the fixed block 3 is more stable, and it is also convenient to position the fixed block 3, thereby improving the installation efficiency of the fixed block 3; and a guide chamfer 1231 is provided on one side of the sliding guide rail 123. The guide chamfer 1231 can make it easier to install the fixed block 3 on the sliding guide rail 123, thereby further improving the installation efficiency of the fixed block 3.

[0036] The implementation principle of the embodiment of this application is:

[0037] First, insert the locking pin 2 into the positioning hole 11 and fix it by the second magnetic part 1121 at the bottom of the positioning hole 11, then put the fixing block 3 into the mounting grooves 12 on both sides of the clamp body 1 along the sliding guide rails 123, and at the same time make the two positioning posts 31 on the fixing block 3 pass through the first mounting hole 121 and the second mounting hole 111 and insert into the positioning hole 11, and abut against the locking pin 2; and a positioning fillet 311 is provided at one end of the positioning post 31 that fits the locking pin 2, and the positioning fillet 311 can increase the contact area between the positioning post 31 and the locking pin 2, so that the locking pin 2 is fixed more stably. At the same time, a magnetic part 1 3112 is installed in the inner wall of the positioning fillet 311 through the limit groove 3111. The magnetic part 1 3112 can be used to install the positioning column 31 faster and can also assist in fixing the locking pin 2; at this time, the adjusting screw 4 is started from the fixing block 3 on one side, passes through the threaded hole 1 32, the threaded hole 2 122, and passes through the fixing buckle 51 through the guide column 52 to the fixing block 3 on the other side, and the fixing blocks 3 on both sides are fixed by adjusting the screw 4, so that the positioning column 31 can be pressed against the side wall of the locking pin 2, so that the locking pin 2 is fixed in the positioning hole 11.

[0038] After the locking pin 2 is fixed, the zero point of the clamp body 1 is aligned, and there is no need to repeatedly position the workpieces subsequently installed on the clamp body 1, which greatly improves the processing efficiency. At the same time, since the positions of the clamp body 1 and the locking pin 2 are fixed, the workpieces to be processed can be uniformly positioned and processed, thereby improving the accuracy of the same batch of workpieces.

[0039] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A zero-point positioning fixture structure, comprising a fixture body (1), characterized in that: The clamp body (1) is provided with a plurality of positioning holes (11), and locking pins (2) are provided in each of the positioning holes (11); the two side walls of the clamp body (1) are provided with mounting grooves (12), and a fixing block (3) is provided in the mounting groove (12); a plurality of positioning columns (31) are provided on one side of the fixing block (3); the mounting groove (12) is provided with a mounting hole 1 (121) corresponding to the positioning column (31), and the side wall of the positioning hole (11) is provided with a mounting hole 2 (111); the positioning column (31) can pass through the mounting hole 1 (121) and the mounting hole 2 (111) to abut against the locking pin (2); the fixing block (3) is provided with a threaded hole 1 (32), and the mounting groove (12) is provided with a threaded hole 2 (122) corresponding to the threaded hole 1 (32), and an adjusting screw (4) is provided in the threaded hole 1 (32) and the threaded hole 2 (122).

2. A zero-point positioning fixture structure according to claim 1, characterized in that: One end of the positioning column (31) that is in contact with the locking pin (2) is provided with a positioning fillet (311), and the positioning fillet (311) can be in contact with the outer side wall of the locking pin (2).

3. A zero-point positioning fixture structure according to claim 2, characterized in that: A limiting groove (3111) is provided on the inner side wall of the positioning fillet (311), and a magnetic member (3112) is provided in the limiting groove (3111) for magnetically attracting the locking pin (2).

4. The zero-point positioning fixture structure according to claim 1, characterized in that: A positioning groove (112) is provided at the bottom of the positioning hole (11), and a second magnetic member (1121) magnetically attracted to the locking pin (2) is provided in the positioning groove (112).

5. The zero-point positioning fixture structure according to claim 1, characterized in that: A positioning platform (5) is provided in the clamp body (1), a fixing buckle (51) is provided on the positioning platform (5), and the adjusting screw (4) can pass through the fixing buckle (51).

6. The zero-point positioning fixture structure according to claim 5, characterized in that: A plurality of guide posts (52) in groups of two are provided on both sides of the fixing buckle (51).

7. The zero-point positioning fixture structure according to claim 1, characterized in that: A sliding guide rail (123) is provided in the installation groove (12), and a sliding groove (33) is provided in the fixed block (3) corresponding to the sliding guide rail (123), and the sliding guide rail (123) can be inserted into the sliding groove (33).

8. The zero-point positioning fixture structure according to claim 7, characterized in that: The sliding guide rail (123) is inserted into one side of the sliding groove (33) and is provided with a guide chamfer (1231).

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