A positioning fixture for processing the end face of a quartz boat

Abstract

The present application provides a positioning fixture for processing the end face of a quartz boat, wherein the quartz boat body has a first groove, and the first groove is fixedly provided with a plurality of groove rods in sequence from one end to the other end along a first direction, and the end faces of the plurality of groove rods are flush, and the groove rods located at both ends of the first groove are positioning groove rods, and the groove rods are provided with a plurality of groove teeth arranged along a second direction, and a third groove is provided between adjacent groove teeth; the positioning fixture comprises a positioning block, and the positioning block is respectively provided with a second groove at both ends along the first direction, and positioning pieces are fixed in the two second grooves; the positioning groove rods are respectively placed in the second grooves, and the positioning pieces are respectively engaged with the third grooves near one end of the positioning groove rod; through the above structure, the present application uses a CNC machine tool in conjunction with a positioning sheet to accurately determine the position of the processing point, ensures the accuracy of the groove rod size during the grinding process, does not need to measure the accuracy multiple times during measurement, reduces the processing cycle, and reduces the product failure rate at the same time, and does not require high skill levels of operators.

Description

Technical Field

[0001] The present application generally relates to the technical field of quartz boat processing, and specifically relates to a positioning fixture for processing the end surface of a quartz boat. Background Art

[0002] Quartz boat is a commonly used tool in laboratories, made of high-purity quartz (silicon dioxide) material; its main features include high temperature resistance, chemical corrosion resistance, good thermal stability and transparency.

[0003] The quartz boat body is a bowl-shaped structure, and slot rods are arranged and welded inside the bowl-shaped structure of the quartz boat body. The length of the slot rods and the position of the slot teeth on the slot rods are very strict. In the prior art, the slot rods and the quartz boat body are first welded and fixed by heat processing, and then the operator grinds the slot rods with quartz sand. In the grinding process, in order to ensure the accuracy of the size, the accuracy needs to be measured multiple times. The processing cycle is long and unqualified products are prone to occur, which requires a high level of skill for the operator. Utility Model Content

[0004] In view of the above defects or deficiencies in the prior art, it is desired to provide a positioning fixture for processing the end surface of a quartz boat that can solve the above technical problems.

[0005] The present application provides a positioning fixture for processing the end face of a quartz boat, the quartz boat comprising: a quartz boat body and a groove rod, the quartz boat body having a first groove, the first groove having a plurality of groove rods sequentially fixedly distributed from one end to the other end along a first direction, the end faces of the plurality of groove rods being flush, the groove rods at both ends of the first groove being positioning groove rods, the groove rods having a plurality of groove teeth arranged along a second direction, a third groove between adjacent groove teeth, comprising:

[0006] A positioning block, wherein the two ends of the positioning block along the first direction are respectively provided with second grooves, and positioning pieces are fixed in the two second grooves; the positioning groove rods are respectively placed in the second grooves, and the positioning pieces are respectively engaged with the third grooves close to one end of the positioning groove rods, and the positioning pieces are used to locate the processing point of the groove rods; the second direction is parallel to the groove rods, and the second direction is perpendicular to the first direction.

[0007] According to the technical solution provided in the present application, a fixing component is provided on the quartz boat body, and the fixing component is used to fix the quartz boat body.

[0008] According to the technical solution provided in this application, the fixing component includes:

[0009] A pressing block, the pressing block is arranged on a side of the quartz boat body away from the positioning block, and the pressing block abuts against the quartz boat body;

[0010] A first bolt is passed through the pressing block and the quartz boat body in sequence and is threadedly connected with the positioning block to fix the pressing block, the quartz boat body and the positioning block.

[0011] According to the technical solution provided in the present application, the side of the quartz boat body away from the first groove further has a support leg, the support leg abuts against the pressing block, and the support leg is used to protect the quartz boat body.

[0012] According to the technical solution provided in the present application, the positioning block includes a first division and a second division arranged along a third direction, the first division presents a trapezoidal structure, and the second division presents a rectangular structure; the two oblique sides of the first division are respectively provided with the second grooves; the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0013] According to the technical solution provided in the present application, a metal plate is provided on a side of the positioning block away from the quartz boat body, and the metal plate is used to allow the positioning block to be adsorbed on the machine tool platform.

[0014] According to the technical solution provided in the present application, the positioning member is a positioning plate, the positioning plate is fixedly connected to the positioning block via a second bolt, and the positioning plate has a fourth groove matching the third groove.

[0015] The beneficial effects of this application are:

[0016] The present application provides a positioning fixture for processing the end face of a quartz boat, the quartz boat comprising: a quartz boat body and a groove rod, the quartz boat body having a first groove, a plurality of the groove rods being fixedly distributed in sequence from one end to the other end of the first groove along a first direction, the end faces of the plurality of groove rods being flush, the groove rods at both ends of the first groove being positioning groove rods, a plurality of groove teeth being arranged along a second direction on the groove rod, and a third groove being provided between adjacent groove teeth; the positioning fixture comprising a positioning block, a second groove being provided at both ends of the positioning block along the first direction, and positioning pieces being fixed in both second grooves; during processing, firstly, one end of the groove rod is ground, the positioning groove rods are respectively placed in the second grooves, and the positioning pieces are fixed in the second grooves. The third groove near one end of the positioning slot rod is clamped, and the positioning piece is used to locate the processing point of the slot rod, which is then aligned using a CNC machine tool. At the same time, the position of the processing point is determined by identifying the positioning piece, and the end faces of all the slot rods are synchronously ground using a bowl-shaped grinding wheel until the grinding stops at the processing point; the other end of the slot rod is then ground according to the above steps. After grinding, the length of the slot rod and the position of the slot teeth on the slot rod meet the requirements; through the above structure, the present application uses a CNC machine tool in conjunction with a positioning piece to accurately determine the position of the processing point, thereby ensuring the accuracy of the slot rod size during the grinding process, eliminating the need to measure the accuracy multiple times during measurement, reducing the processing cycle, and at the same time reducing the product failure rate, without high requirements on the skill level of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 It is a front view of a positioning fixture for processing the end face of a quartz boat provided by the present application;

[0019] Figure 2 It is a front cross-sectional view of a positioning fixture for processing the end face of a quartz boat provided by the present application.

[0020] In the figure: 1, quartz boat body; 2, groove rod; 21, groove teeth; 22, positioning groove rod; 3, positioning block; 31, first section; 32, second section; 4, second groove; 5, positioning piece; 6, pressure block; 7, first bolt; 8, second bolt; 9, metal plate; 10, support leg; 11, first groove. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Example 1

[0024] Please refer to Figure 1-Figure 2 A schematic diagram of a positioning fixture for processing the end face of a quartz boat provided in the present application, wherein the quartz boat comprises: a quartz boat body 1 and a slot rod 2, wherein the quartz boat body 1 has a first slot 11, wherein the first slot 11 has a plurality of slot rods 2 fixedly distributed sequentially from one end to the other end along a first direction, wherein the end faces of the plurality of slot rods 2 are flush, and the slot rods 2 located at both ends of the first slot 11 are positioning slot rods 22, wherein the slot rod 2 has a plurality of slot teeth 21 arranged along a second direction, and a third slot is provided between adjacent slot teeth 21, comprising:

[0025] A positioning block 3, wherein the two ends of the positioning block 3 along the first direction are respectively provided with second grooves 4, and positioning pieces 5 are fixed in the two second grooves 4; the positioning groove rods 22 are respectively placed in the second grooves 4, and the positioning pieces 5 are respectively engaged with the third grooves close to one end of the positioning groove rods 22, and the positioning pieces 5 are used to locate the processing point of the groove rods 2; the second direction is parallel to the groove rods 2, and the second direction is perpendicular to the first direction.

[0026] Specifically, in this embodiment, if Figure 1 and Figure 2 As shown, in the figure, a is the first direction, b is the second direction, and c is the third direction;

[0027] Specifically, in this embodiment, it is necessary to ensure that the distance between the center of the first third groove at both ends of the slot bar 2 along the second direction and the end of the slot bar 2 is 2.36 mm; since the gap between the slot teeth 21 is fixed when the slot bar 2 is manufactured, after grinding, the length of the slot bar 2 is 121.34 mm;

[0028] Specifically, in this embodiment, the distance between the center of the first third groove at both ends of the groove rod 2 and the end of the groove rod 2 is required to be 2.36 mm. Therefore, after the positioning member 5 is clamped with the third groove near one end of the positioning groove rod 22, the processing point is 2.36 mm away from the positioning member 5. During processing, after the CNC machine tool is aligned, the first spacing is input into the CNC machine tool. After the CNC machine tool recognizes the position of the positioning member 5, it automatically locates the processing point 2.36 mm away from the positioning member 5, and finally uses a bowl-shaped grinding wheel to synchronously grind the end faces of all the groove rods 2 until grinding to the processing point stops.

[0029] Specifically, in this embodiment, there are four slot rods 2, and the four slot rods 2 are fixedly distributed in sequence from one end to the other end of the first groove 11 along the first direction. Since the four slot rods 2 need to be processed simultaneously, it is necessary to ensure the verticality of the tool and the lathe, and then ensure the verticality of the end faces of the four slot rods 2. At the same time, the rotation speed and the tool feed speed of the tool are determined by experience to prevent the uneven end faces of the slot rods 2 caused by deformation of the tool; in this embodiment, the rotation speed of the tool is 2500-3500r / min, and the tool feed speed is 120mm / min;

[0030] Specifically, the positioning block 3 is made of graphite, has high temperature resistance and strain resistance, and is not easily deformed during processing;

[0031] Working principle: During processing, one end of the slot rod 2 is first ground, and the positioning slot rod 22 is placed in the second groove 4 respectively, and the positioning piece 5 is clamped with the third groove close to one end of the slot rod 2, and the positioning piece 5 is used to locate the processing point of the slot rod 2, and then a CNC machine tool is used for alignment. At the same time, the position of the processing point is determined by identifying the positioning piece 5, and a bowl-shaped grinding wheel is used to synchronously grind the end faces of all the slot rods 2 until the grinding stops at the processing point; then the other end of the slot rod 2 is ground according to the above steps. After grinding, the length of the slot rod 2 and the position of the slot teeth 21 on the slot rod 2 meet the requirements; through the above structure, the present application uses a CNC machine tool in conjunction with a positioning piece to accurately determine the position of the processing point, and ensures the accuracy of the size of the slot rod 2 during the grinding process. There is no need to measure the accuracy multiple times during measurement, which reduces the processing cycle and reduces the product failure rate. The skill level of the operator is not required to be high.

[0032] In some embodiments, a fixing component is disposed on the quartz boat body 1 , and the fixing component is used to fix the quartz boat body 1 .

[0033] Specifically, Figure 1As shown, a fixing assembly is provided on the quartz boat body 1 , and the fixing assembly is used to fix the quartz boat body 1 . However, during the processing, the quartz boat body 1 is offset, thereby causing the end surface of the groove rod 2 to be uneven.

[0034] In certain embodiments, the fixing assembly comprises:

[0035] A pressing block 6, wherein the pressing block 6 is arranged on a side of the quartz boat body 1 away from the positioning block 3, and the pressing block 6 abuts against the quartz boat body 1;

[0036] The first bolt 7 passes through the pressing block 6 and the quartz boat body 1 in sequence and is threadedly connected with the positioning block 3 to fix the pressing block 6, the quartz boat body 1 and the positioning block 3.

[0037] Specifically, the fixing assembly includes: a pressing block 6 and a first bolt 7, wherein the pressing block 6 is arranged on a side of the quartz boat body 1 away from the positioning block 3, the pressing block 6 abuts against the quartz boat body 1, and the first bolt 7 sequentially penetrates the pressing block 6 and the quartz boat body 1 and is threadedly connected with the positioning block 3 to fix the pressing block 6, the quartz boat body 1 and the positioning block 3 to prevent the quartz boat body 1 from deviating during the processing; Figure 2 As shown, two of the pressing block 6 and the first bolt 7 are provided correspondingly, so as to further ensure the stability of the connection between the pressing block 6, the quartz boat body 1 and the positioning block 3;

[0038] Specifically, the pressing block 6 is made of graphite, has high temperature resistance and strain resistance, and is not easily deformed during processing.

[0039] In some embodiments, the side of the quartz boat body 1 away from the first groove 11 further has a leg 10 , the leg 10 abuts against the pressing block 6 , and the leg 10 is used to protect the quartz boat body 1 .

[0040] Specifically, the side of the quartz boat body 1 away from the first groove 11 also has a support leg 10, and the support leg 10 abuts against the pressing block 6. The support leg 10 protects the quartz boat body 1 and prevents the pressing block 6 from directly contacting the quartz boat body 1 to cause damage to the surface of the quartz boat body 1; at the same time, the support leg 10 improves the stability of the placement of the quartz boat body 1.

[0041] In some embodiments, the positioning block 3 includes a first division 31 and a second division 32 arranged along a third direction, the first division 31 presents a trapezoidal structure, and the second division 32 presents a rectangular structure; the two oblique sides of the first division 31 are respectively provided with the second groove 4; the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0042] Specifically, Figure 1 As shown, since the first groove 11 of the quartz boat body 1 is a bowl-shaped structure, the groove rods 2 are welded and fixed in sequence and distributed from one end to the other end of the first groove 11 along the first direction. Therefore, in order to ensure the stability of the positioning block 3 supporting the quartz boat body 1, the positioning block 3 includes a first section 31 and a second section arranged along the third direction, the first section 31 is a trapezoidal structure, and the second section 32 is a rectangular structure; the two oblique sides of the first section 31 are respectively provided with the second grooves 4; the four groove rods 2 are all in contact with the positioning block 3, thereby enhancing the stability of the positioning block 3 supporting the quartz boat body 1.

[0043] In some embodiments, a metal plate 9 is disposed on a side of the positioning block 3 away from the quartz boat body 1 , and the metal plate 9 is used to allow the positioning block 3 to be adsorbed on a machine tool platform.

[0044] Specifically, a metal plate 9 is provided on a side of the positioning block 3 away from the quartz boat body 1, and the positioning block 3 and the metal plate 9 are bonded with glue. The metal plate 9 facilitates the entire fixture to be adsorbed on the machine tool platform, further avoiding the quartz boat body 1 from shifting during the processing.

[0045] In some embodiments, the positioning member 5 is a positioning plate, the positioning plate is fixedly connected to the positioning block 3 via a second bolt 8, and the positioning plate has a fourth groove matching the third groove.

[0046] Specifically, the positioning member 5 is a positioning plate, which is fixed to the positioning block 3 by a second bolt 8. The positioning plate is made of graphite and has a fourth groove matching the third groove to ensure a stable clamping connection between the positioning plate and the slot rod 2.

[0047] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A positioning fixture for processing the end surface of a quartz boat, the quartz boat comprising: A quartz boat body (1) and a groove rod (2), wherein the quartz boat body (1) has a first groove (11), a plurality of the groove rods (2) are fixedly distributed in sequence from one end to the other end of the first groove (11) along a first direction, the end surfaces of the plurality of groove rods (2) are flush, the groove rods (2) located at both ends of the first groove (11) are positioning groove rods (22), a plurality of groove teeth (21) are arranged on the groove rod (2) along a second direction, and a third groove is provided between adjacent groove teeth (21), and the invention is characterized in that it comprises: A positioning block (3), wherein the positioning block (3) is provided with second grooves (4) at both ends along the first direction, and positioning members (5) are fixed in the two second grooves (4); the positioning groove rods (22) are respectively placed in the second grooves (4), and the positioning members (5) are respectively engaged with the third grooves close to one end of the positioning groove rod (22), and the positioning members (5) are used to locate the processing point of the groove rod (2); the second direction is parallel to the groove rod (2), and the second direction is perpendicular to the first direction.

2. A positioning jig for machining the end surface of a quartz boat according to claim 1, characterized in that: The quartz boat body (1) is provided with a fixing component, and the fixing component is used to fix the quartz boat body (1).

3. A positioning jig for processing the end surface of a quartz boat according to claim 2, characterized in that: The fixing assembly comprises: A pressing block (6), the pressing block (6) being arranged on a side of the quartz boat body (1) away from the positioning block (3), the pressing block (6) being in abutment with the quartz boat body (1); A first bolt (7), wherein the first bolt (7) passes through the pressing block (6) and the quartz boat body (1) in sequence and is threadedly connected to the positioning block (3) to fix the pressing block (6), the quartz boat body (1) and the positioning block (3).

4. A positioning jig for machining the end surface of a quartz boat according to claim 3, characterized in that: The side of the quartz boat body (1) away from the first groove (11) also has a support leg (10), the support leg (10) abuts against the pressing block (6), and the support leg (10) is used to protect the quartz boat body (1).

5. The positioning fixture for processing the end surface of a quartz boat according to claim 1, characterized in that: The positioning block (3) comprises a first section (31) and a second section (32) arranged along a third direction, the first section (31) presenting a trapezoidal structure, and the second section (32) presenting a rectangular structure; the two oblique sides of the first section (31) are respectively provided with the second grooves (4); the third direction is perpendicular to the first direction and perpendicular to the second direction.

6. A positioning jig for machining the end surface of a quartz boat according to claim 1, characterized in that: A metal plate (9) is provided on the side of the positioning block (3) away from the quartz boat body (1), and the metal plate (9) is used to allow the positioning block (3) to be adsorbed on the machine tool platform.

7. A positioning jig for machining the end surface of a quartz boat according to claim 1, characterized in that: The positioning member (5) is a positioning plate, which is fixedly connected to the positioning block (3) via a second bolt (8), and has a fourth groove matching the third groove.

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