A jig structure for detecting the center distance of a die cut edge

Abstract

This utility model discloses a fixture structure for detecting the center distance of a mold core's cross-section, comprising a base, a V-block, and an elastic holding assembly. The V-block has a downward-opening V-groove. The upper surface of the base serves as a detection reference surface. A left-side support block is screwed onto the left end of the base, and a right-side support block is screwed onto the right end. The elastic holding assembly includes a top block screwed between the upper ends of the left and right support blocks. The V-block is located between the top block and the base, and a compression spring is installed between the V-block and the top block. The fixture structure also includes a positioning and leveling block. In use, the positioning and leveling block is vertically placed between the left and right support blocks, with its left and right sides respectively engaging and positioning with the corresponding left and right support blocks. Through the above structural design, this utility model has the advantages of novel structural design, stable and reliable positioning, and can effectively ensure measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of measuring fixture devices, and in particular to a fixture structure for detecting the center distance of the cut edges of a mold core. Background Technology

[0002] In the mold manufacturing process, the accuracy of the center distance of the cross-section edge of a circular mold core (i.e., the plane at the outer diameter of the circular mold core) directly affects the molding accuracy and product quality. Traditionally, the center distance of the cross-section edge is measured manually using calipers and micrometers. However, since aligning the cross-section edge with the curved surface of the outer diameter of the circular mold core is inconvenient, manual caliper and micrometer measurements suffer from low efficiency and poor accuracy. Furthermore, with the increasing precision requirements of molds, for high-precision circular mold core products, the cross-section edge often needs to be measured using a coordinate measuring machine (CMM). While CMM measurements can achieve the required accuracy, they are slow and costly.

[0003] Among them, the Chinese utility model patent with patent number ZL202223581054.0 and patent name: a positioning and measuring device for the distance from a plane to the center of rotation, substantially discloses a positioning and measuring device for the distance from the center of a section. Specifically, this positioning and measuring device for the distance from a plane to the center of rotation discloses the following technical solution: a positioning and measuring device for the distance from a plane to the center of rotation, comprising a V-shaped positioning block and a dial indicator. The workpiece to be measured is installed in a V-shaped groove on the side of the V-shaped positioning block. The right end face of the workpiece to be measured is blocked and positioned by a positioning baffle on the end face of the workpiece to be measured. The workpiece to be measured is pressed and fixed by an elastic pressure plate and adjusted so that the measuring surface of the workpiece is facing upwards. A circumferential positioning plate of the workpiece to be measured is fixedly connected to the top of the V-shaped positioning block. The dial indicator can move horizontally and / or vertically to effectively contact the measured plane of the workpiece to be measured. The value output by the dial indicator is the distance from the plane of the workpiece to the center of rotation.

[0004] It should be noted that the above-mentioned positioning and measuring device for the distance from the plane to the rotation center still has the following defects: Specifically, when adjusting the position of the dial indicator and making the dial indicator probe vertically downward to contact the measured plane of the workpiece, in order to ensure reliable contact between the side rod of the dial indicator and the measured plane of the workpiece, the side rod of the dial indicator needs to press down on the workpiece; since the workpiece is pressed into the V-groove of the V-shaped positioning block by the elastic pressure plate, when the side rod of the dial indicator presses down on the workpiece, the workpiece is prone to vertical displacement, which leads to inaccurate measurement. Utility Model Content

[0005] The purpose of this utility model is to provide a fixture structure for detecting the center distance of the cut edge of a mold core, which addresses the shortcomings of the existing technology. This fixture structure for detecting the center distance of the cut edge of a mold core has a novel design, stable and reliable positioning, and can effectively ensure measurement accuracy.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] A fixture structure for detecting the center distance of the cut edge of a mold core includes a base, a V-block, and an elastic holding assembly, wherein the V-block has a V-groove.

[0008] The upper surface of the base is the detection reference surface. The left end of the base is screwed with a left support block, and the right end of the base is screwed with a right support block. The left support block and the right support block are arranged opposite each other at intervals.

[0009] The elastic holding assembly includes a top block located on the upper side of the base, with the left and right ends of the top block screwed to the upper ends of the left and right support blocks on the corresponding sides, respectively; a V-shaped block is located between the top block and the base, with the V-shaped groove of the V-shaped block opening downwards; a compression spring is installed between the V-shaped block and the top block, with the upper end of the compression spring abutting against the top block and the lower end of the compression spring abutting against the V-shaped block;

[0010] The fixture structure used for detecting the center distance of the mold core section edge also includes a positioning and leveling block; in use, the positioning and leveling block is placed vertically between the left support block and the right support block, and the left and right sides of the positioning and leveling block are respectively fitted and positioned with the left and right support blocks on the corresponding sides.

[0011] The elastic holding assembly further includes a vertically arranged movable pull rod, the lower end of which is connected to the V-shaped block, the upper end of which passes through the top block and extends to the upper side of the top block, and the compression spring is fitted around the movable pull rod.

[0012] The movable lever is equipped with a lever-type wrench, and the upper end of the movable lever is hinged to one end of the lever-type wrench via a pivot.

[0013] The V-shaped block has a vertical through hole that communicates with the V-shaped groove, and the inner wall of the through hole is provided with a V-shaped block shoulder.

[0014] The lower end of the movable pull rod is inserted into the through hole of the V-shaped block, and the lower end of the movable pull rod is provided with a pull rod shoulder located on the lower side of the shoulder of the V-shaped block; the shoulder of the V-shaped block and the shoulder of the pull rod are in contact.

[0015] The top block has an upper spring positioning hole corresponding to the compression spring, and the V-shaped block has a lower spring positioning hole corresponding to the compression spring. The upper end of the compression spring extends into the upper spring positioning hole, and the lower end of the compression spring extends into the lower spring positioning hole.

[0016] The positioning and leveling block is equipped with a lifting handle on its front side.

[0017] The left support block is screwed with a left positioning block, the right support block is screwed with a right positioning block, and the V-shaped block is vertically slidably installed between the left and right positioning blocks.

[0018] Compared with the prior art, the present invention has the following advantages: Specifically, in the process of detecting the center distance of the mold core profile, the circular mold core is elastically positioned and pressed between the V-shaped block and the detection reference surface of the base, and the center distance of the mold core profile is indirectly measured by measuring the height of the mold core profile; compared with the prior art, the fixture structure of the present invention for detecting the center distance of the mold core profile has a novel structural design, stable and reliable positioning, and can effectively ensure the accuracy of measurement. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram of its breakdown.

[0022] Figure 3 This is a structural schematic diagram from another perspective of the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0024] exist Figures 1 to 4 This includes:

[0025] 1-Base; 11-Detection reference surface; 2-V-block; 21-V-groove; 22-V-block through hole; 23-V-block shoulder; 24-Lower spring positioning hole; 3-Elastic holding assembly; 31-Top block; 311-Upper spring positioning hole; 32-Compression spring; 33-Modible pull rod; 331-Pull rod shoulder; 34-Lever wrench; 35-Pivot; 41-Left side support block; 42-Right side support block; 5-Positioning and leveling block; 6-Lifting handle; 71-Left side positioning block; 72-Right side positioning block; 8-Circular mold core; 81-Mold core side profile. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figures 1 to 4As shown, a fixture structure for detecting the center distance of the cut edge of a mold core includes a base 1, a V-block 2, and an elastic holding assembly 3. The V-block 2 has a V-groove 21.

[0028] Among them, such as Figures 1 to 4 As shown, the upper surface of the base 1 is the detection reference surface 11. The left end of the base 1 is screwed with a left support block 41, and the right end of the base 1 is screwed with a right support block 42. The left support block 41 and the right support block 42 are arranged opposite each other at intervals.

[0029] Furthermore, such as Figures 1 to 4 As shown, the elastic holding assembly 3 includes a top block 31 located on the upper side of the base 1. The left and right ends of the top block 31 are screwed to the upper ends of the left support block 41 and the right support block 42 on the corresponding sides, respectively. A V-shaped block 2 is located between the top block 31 and the base 1, and the V-shaped groove 21 of the V-shaped block 2 opens downward. A compression spring 32 arranged vertically is installed between the V-shaped block 2 and the top block 31. The upper end of the compression spring 32 abuts against the top block 31, and the lower end of the compression spring 32 abuts against the V-shaped block 2.

[0030] Furthermore, the fixture structure used for detecting the center distance of the mold core section edge also includes a positioning and leveling block 5; in use, the positioning and leveling block 5 is placed vertically between the left support block 41 and the right support block 42, and the left and right sides of the positioning and leveling block 5 are respectively fitted and positioned with the left support block 41 and the right support block 42 on the corresponding sides.

[0031] In the process of using the fixture structure of this embodiment to detect the center distance of the mold core section edge 81, the steps include:

[0032] Step a: Lift the V-block 2 and compress the compression spring 32 so that there is enough space under the V-block 2 to place the circular mold core 8.

[0033] Step b: Place the circular mold core 8 on the detection reference surface 11 of the base 1, and position the circular mold core 8 directly below the V-groove 21 of the V-block 2; then release the V-block 2, and the V-block 2 moves downward under the restoring force of the compression spring 32, and the V-block 2 presses the circular mold core 8 through its V-groove 21. The V-groove 21 of the V-block 2 can center and press the circular mold core 8 in place.

[0034] Step c: Place the positioning and leveling block 5 between the left support block 41 and the right support block 42. The left support block 41 positions the left side of the positioning and leveling block 5, and the right support block 42 positions the right side of the positioning and leveling block 5. That is, the positioning and leveling block 5 is positioned by fitting the left side and right side of the positioning and leveling block 5 with the corresponding left support block 41 and right support block 42, respectively, so as to keep the positioning and leveling block 5 in a horizontal state.

[0035] Step d: Apply downward force to the positioning and leveling block 5 so that the positioning and leveling block 5 appropriately presses the circular mold core 8 on the base 1 downward. During this process, rotate and adjust the circular mold core 8 so that the mold core section edge 81 of the circular mold core 8 abuts against the lower surface of the positioning and leveling block 5. When the mold core section edge 81 is aligned and abuts against the lower surface of the positioning and leveling block 5, the position of the circular mold core 8 is adjusted and the mold core section edge 81 is adjusted to a horizontal position.

[0036] Step e: Move the positioning and leveling block 5 out from between the left support block 41 and the right support block 42. Use a height gauge to detect the height of the mold core profile 81 relative to the detection reference surface 11 after positioning and leveling by the positioning and leveling block 5. The height value of the mold core profile 81 relative to the detection reference surface 11 is H, and the radius value of the circular mold core 8 is R. HR is the center distance of the mold core profile 81.

[0037] It should be emphasized that, in the process of detecting the center distance of the mold core 81 using the fixture structure for detecting the center distance of the mold core 81 in this embodiment, the circular mold core 8 is elastically positioned and pressed between the V-block 2 and the detection reference surface 11 of the base 1, and the mold core 81 of the circular mold core 8 is positioned and leveled by the detection positioning and leveling block 5, and the center distance of the mold core 81 is indirectly measured by indirectly measuring the height of the mold core 81. Compared with the prior art, the fixture structure for detecting the center distance of the mold core 8 in this embodiment has better positioning stability and reliability for the circular mold core 8, that is, it can effectively ensure the measurement accuracy.

[0038] In summary, the fixture structure for detecting the center distance of the mold core section edge in this embodiment has a novel structural design, stable and reliable positioning, and can effectively ensure measurement accuracy.

[0039] Example 2, as Figures 1 to 4 As shown, the difference between this embodiment 2 and embodiment 1 is that the elastic holding assembly 3 further includes a vertically arranged movable pull rod 33. The lower end of the movable pull rod 33 is connected to the V-shaped block 2, and the upper end of the movable pull rod 33 passes through the top block 31 and extends to the upper end side of the top block 31. The compression spring 32 is fitted around the movable pull rod 33.

[0040] The movable lever 33 is equipped with a lever wrench 34, and the upper end of the movable lever 33 is hinged to one end of the lever wrench 34 via a pivot 35.

[0041] Before placing the circular mold core 8 on the detection reference surface 11 of the base 1, the operator operates the lever wrench 34 and pulls the movable lever 33 upward. During this process, the movable lever 33 pulls the V-block 2 upward and compresses the compression spring 32. After the circular mold core 8 is placed on the detection reference surface 11 of the base 1, the lever wrench 34 is released. Under the elastic force of the compression spring 32, the V-block 2 moves downward and pulls the movable lever 33 downward simultaneously.

[0042] Example 3, as Figure 4 As shown, the difference between this embodiment 3 and embodiment 2 is that: the V-shaped block 2 has a vertical through hole 22 that is connected to the V-shaped groove 21, and the inner wall of the V-shaped block through hole 22 is provided with a V-shaped block shoulder 23.

[0043] The lower end of the movable pull rod 33 is inserted into the V-shaped block through hole 22 of the V-shaped block 2, and the lower end of the movable pull rod 33 is provided with a pull rod shoulder 331 located on the lower side of the V-shaped block shoulder 23; the V-shaped block shoulder 23 and the pull rod shoulder 331 abut against each other.

[0044] Example 4, as Figure 4 As shown, the difference between this embodiment four and embodiment two is that: the top block 31 has an upper spring positioning hole 311 corresponding to the compression spring 32, and the V-shaped block 2 has a lower spring positioning hole 24 corresponding to the compression spring 32. The upper end of the compression spring 32 extends into the upper spring positioning hole 311, and the lower end of the compression spring 32 extends into the lower spring positioning hole 24.

[0045] By setting the upper spring positioning hole 311 and the lower spring positioning hole 24, this embodiment four can effectively position the compression spring 32 to ensure the stability of the installation position of the compression spring 32.

[0046] Example 5, as Figures 1 to 3 As shown, the difference between this fifth embodiment and the first embodiment is that the front of the positioning and leveling block 5 is equipped with a lifting handle 6; wherein, the lifting handle 6 facilitates the operation of the staff to move the positioning and leveling block 5.

[0047] Example 6, as Figures 1 to 4 As shown, the difference between this sixth embodiment and the first embodiment is that: the left support block 41 is screwed with the left positioning block 71, the right support block 42 is screwed with the right positioning block 72, and the V-shaped block 2 is vertically slidably installed between the left positioning block 71 and the right positioning block 72.

[0048] During the up-and-down movement of the V-block 2, this embodiment 6 uses the left positioning block 71 and the right positioning block 72 to guide the V-block 2, so as to ensure the accuracy of the position of the V-block 2 during the detection operation.

[0049] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A fixture structure for detecting the center distance of the cut edge of a mold core, comprising a base (1), a V-block (2), and an elastic holding assembly (3), wherein the V-block (2) is provided with a V-groove (21); characterized in that The upper surface of the base (1) is the detection reference surface (11). The left end of the base (1) is screwed with a left support block (41), and the right end of the base (1) is screwed with a right support block (42). The left support block (41) and the right support block (42) are arranged opposite each other at intervals. The elastic holding assembly (3) includes a top block (31) located on the upper side of the base (1). The left and right ends of the top block (31) are screwed to the upper ends of the left support block (41) and the right support block (42) on the corresponding sides, respectively. The V-shaped block (2) is located between the top block (31) and the base (1) and the V-shaped groove (21) of the V-shaped block (2) is open downward. A compression spring (32) arranged vertically is installed between the V-shaped block (2) and the top block (31). The upper end of the compression spring (32) abuts against the top block (31) and the lower end of the compression spring (32) abuts against the V-shaped block (2). The fixture structure used for detecting the center distance of the mold core section edge also includes a positioning and leveling block (5); when in use, the positioning and leveling block (5) is placed vertically between the left support block (41) and the right support block (42), and the left and right sides of the positioning and leveling block (5) are respectively attached to the left support block (41) and the right support block (42) on the corresponding sides for positioning.

2. The jig structure for detecting the center distance of the cut edge of a die according to claim 1, wherein: The elastic holding assembly (3) also includes a vertically arranged movable pull rod (33), the lower end of which is connected to the V-shaped block (2), the upper end of which passes through the top block (31) and extends to the upper side of the top block (31), and the compression spring (32) is fitted around the movable pull rod (33). The movable lever (33) is equipped with a lever wrench (34), and the upper end of the movable lever (33) is hinged to one end of the lever wrench (34) via a pivot (35).

3. The jig structure for detecting the center distance of the cut edge of a die according to claim 2, wherein: The V-shaped block (2) has a vertical through hole (22) that communicates with the V-shaped groove (21), and the inner wall of the V-shaped block through hole (22) is provided with a V-shaped block shoulder (23). The lower end of the movable pull rod (33) is inserted into the V-shaped block through hole (22) of the V-shaped block (2), and the lower end of the movable pull rod (33) is provided with a pull rod shoulder (331) located on the lower side of the V-shaped block shoulder (23); the V-shaped block shoulder (23) and the pull rod shoulder (331) abut against each other.

4. The jig structure for detecting the center distance of the cut edge of a die according to claim 2, wherein: The top block (31) has an upper spring positioning hole (311) corresponding to the compression spring (32), and the V-shaped block (2) has a lower spring positioning hole (24) corresponding to the compression spring (32). The upper end of the compression spring (32) extends into the upper spring positioning hole (311), and the lower end of the compression spring (32) extends into the lower spring positioning hole (24).

5. The jig structure for detecting the center distance of a cut edge of a die according to claim 1, wherein: The positioning and leveling block (5) is equipped with a lifting handle (6) on its front.

6. The jig structure for detecting the center distance of the cut edge of a die according to any one of claims 1 to 5, characterized in that: The left support block (41) is screwed with a left positioning block (71), the right support block (42) is screwed with a right positioning block (72), and the V-shaped block (2) is vertically slidably installed between the left positioning block (71) and the right positioning block (72).

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