Chip grinding equipment

Abstract

The invention relates to chip grinding equipment which comprises a grinding base, a position adjusting mechanism is arranged in the grinding base, the upper end of the position adjusting mechanism is fixedly connected with two pressing column mechanisms, and the two pressing column mechanisms are symmetrically arranged at the upper end of the grinding base; and the pressing column mechanism comprises an extrusion shaft, a first rotating shaft, a connecting ring and a first motor, the extrusion shaft is fixedly connected to the outer side of the first rotating shaft in a sleeving mode, the front side and the rear side of the outer side of the first rotating shaft are connected with the connecting ring in a sleeving mode through bearings, and the first motor is fixedly connected to the end of the first rotating shaft. According to the overall structure provided by the embodiment of the invention, the two third motors are started to drive the first transmission screw rod to rotate so as to adjust the distance between the two adjusting rollers, so that the distance between the two adjusting rollers is adjusted according to the area, needing to be ground, of the chip so as to grind the designated position of the chip, and therefore the requirement for grinding of different positions of the chip can be met.

Description

Technical Field

[0001] The present application relates to the field of grinding technology, and in particular to a chip grinding device. Background Art

[0002] The manufacture of semiconductor wafer chips includes: cutting the semiconductor wafer from the crystal, followed by many consecutive processing steps to remove material. These processing steps are to obtain the smoothest possible surface, parallel sides of the semiconductor wafer, and to provide a semiconductor wafer with rounded edges. The processing steps commonly considered for removing material include: rounding the edges of the semiconductor wafer, grinding or double-sided grinding, etching and polishing. In the processing of semiconductor wafer chips, the chips need to be ground, but ordinary grinding equipment can only grind multiple chips as a whole. If other positions need to be ground, the position of the chip needs to be displaced. Therefore, we propose a chip grinding device. Summary of the invention

[0003] The present application provides a chip grinding device to solve the above-mentioned problems.

[0004] The present application provides a chip grinding device, comprising:

[0005] A grinding base, wherein a position adjustment mechanism is provided inside the grinding base, and a pressure column mechanism is fixedly connected to the upper end of the position adjustment mechanism, and two pressure column mechanisms are provided and symmetrically arranged at the upper end of the grinding base;

[0006] The pressure column mechanism includes an extrusion shaft, a first rotating shaft, a connecting ring and a first motor, wherein the extrusion shaft is fixedly sleeved on the outside of the first rotating shaft, the front and rear sides of the outside of the first rotating shaft are sleeved on the connecting ring through bearings, and the first motor is fixedly connected to the end of the first rotating shaft, and the lower end of the first motor is fixedly connected to the outside of the connecting ring through a support plate;

[0007] The upper four corners of the upper grinding table of the grinding base are fixedly connected with connecting plates through support rods, and the lower end of the connecting plate is connected with a grinding mechanism with adjustable position;

[0008] The grinding mechanism includes a connecting shell and a grinding mechanism connected inside the connecting shell, the inner sides of the connecting shell are rotatably connected to transmission rollers through a rotating shaft, one end of the rotating shaft of the transmission roller is fixedly connected to a second motor, the second motor is fixedly connected inside the connecting shell, and a transmission belt is sleeved on the outer side of the transmission roller, and a grinding connecting belt is sleeved on the outer side of the transmission belt, and a grinding column mechanism is fixedly connected to the outer side of the grinding connecting belt at equal intervals, and an adjustable roller with an adjustable position is provided at the lower part between the transmission belts, and a tensioning roller is provided at the upper inner side of the transmission belt.

[0009] Preferably, the polishing column mechanism includes a positioning shell, a positioning head, a polishing column, a baffle, a positioning block and a positioning groove. The end of the positioning shell close to the polishing connecting belt is fixedly connected to the outside of the polishing connecting belt, one end of the positioning shell is fixedly connected to the positioning head, and the inner side of the positioning head is fixedly connected to the positioning block. The internal limiting plug-in of the positioning shell, the polishing column is exposed from the positioning shell away from the polishing connecting belt side, and the other end of the positioning shell is fixedly connected to the baffle by bolts.

[0010] Preferably, a positioning groove is formed at the end of the polishing column close to the positioning block, and the positioning block is movably inserted in the positioning groove, and the positioning block is a rectangular block.

[0011] Preferably, the middle part of the adjusting roller is connected to the second rotating shaft through a bearing, the middle parts of both ends of the second rotating shaft are penetrated and connected with the first transmission screw, both ends of the first transmission screw are connected to circular rings through rotating shaft sleeves, the outer sides of the circular rings are fixedly connected to the inner wall of the connecting shell through connecting rods, and one end of the first transmission screw is fixedly connected to the third motor, the thread directions of the first transmission screw are opposite, and the third motor is fixedly connected to the inner wall of the connecting shell.

[0012] Preferably, the middle part of the tensioning roller is rotatably connected to the third rotating shaft through a bearing, and the front and rear end limit ends of the third rotating shaft are movably connected to the inside of a rectangular opening opened on the side wall of the connecting shell, and a tensioning spring is fixedly provided on the lower inner part of the rectangular opening of the third rotating shaft.

[0013] Preferably, the upper end of the connecting shell is transmission-connected with a cross screw, the upper end of the cross screw is fixedly connected with a first electric telescopic rod, and the first electric telescopic rod is fixedly connected to the upper end of the connecting plate.

[0014] Preferably, a plurality of material plates are provided on the outer side of the extrusion shaft.

[0015] Preferably, the position adjustment mechanism includes a connecting rod body, a reinforcing rod, a second electric telescopic rod, a second transmission screw and a fourth motor, four connecting rod bodies are provided, and the second electric telescopic rod is fixedly connected to the upper inner parts of the four connecting rod bodies, and the upper ends of the transmission rods of the second electric telescopic rods are correspondingly fixedly connected to the lower end of the connecting ring, a reinforcing rod is fixedly connected to the lower parts between the front and rear connecting rod bodies, and the second transmission screw is threadedly inserted in the middle of the reinforcing rod, and the two sides of the second transmission screw are inserted into the side walls of the grinding base through bearings, and the threads on both sides of the second transmission screw are in opposite directions.

[0016] Preferably, the end of the second transmission screw is fixedly connected to a fourth motor, the fourth motor is fixedly connected to the outer wall of the grinding base, the lower end of the connecting rod body is fixedly connected to a slider, and the slider is slidably inserted into a slide groove opened on the lower side plate of the inner cavity of the grinding base.

[0017] Preferably, rectangular openings are opened on the front and rear sides of the grinding table, and a transmission rod of the second electric telescopic rod is movably inserted into the rectangular opening.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The overall structure provided by the embodiment of the present application is that after the chip is fixed, the cross screw is started to adjust the position of the grinding mechanism, and the two third motors are started to drive the first transmission screw to rotate, and the distance between the two adjustment rollers is adjusted, so that the distance between the two adjustment rollers is adjusted according to the area of ​​the chip that needs to be polished, and the lower end surface of the adjustment roller will be lower than the lower end surface of the transmission roller, so that the lower grinding column mechanism between the adjustment rollers will protrude from the lower end of the outer shell of the grinding mechanism, and due to the action of the tensioning roller, the lower grinding column mechanism between the adjustment rollers will be in a horizontal state, and then the second motor is started to drive one of the transmission rollers to rotate, so that the outer transmission belt, the grinding connection belt and the grinding column mechanism can be cyclically displaced, and the first electric telescopic rod is started to drive the cross screw and the grinding mechanism to slowly move downward, so as to grind the specified position of the chip, so as to meet the grinding of different positions of the chip;

[0020] The first motor drives the first rotating shaft to rotate, thereby driving the extrusion shaft to rotate. Because different extrusion material strips are provided on the extrusion shaft, suitable extrusion positioning materials can be replaced according to the type of material of the chip to be ground. The hardness of each extrusion positioning material is different, so that the extruded chip can be protected to avoid damage to the chip due to the high hardness of the extrusion material.

[0021] And there are multiple grinding columns, so when the grinding columns are damaged, only the damaged grinding columns need to be replaced, and all of them do not need to be replaced, which saves costs and materials. When disassembling, the baffle is disassembled, and then the grinding columns can be pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is the overall structure diagram of the column pressing mechanism of the present invention;

[0026] Figure 3 This is a diagram showing the internal structure of the grinding base of the present invention;

[0027] Figure 4 The figure is the overall structure diagram of the grinding mechanism of the present invention;

[0028] Figure 5 The internal structure diagram of the grinding mechanism of the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 It is a cross-sectional view of the grinding column mechanism of the present invention.

[0031] In the figure: 1, grinding base; 2, fourth motor; 3, grinding table; 4, connecting plate; 5, first electric telescopic rod; 6, extrusion shaft; 7, first motor; 8, grinding mechanism; 9, first rotating shaft; 10, connecting ring; 11, supporting plate; 12, connecting rod body; 13, reinforcing rod; 14, second electric telescopic rod; 15, second transmission screw; 16, second motor; 17, slide groove; 18, cross screw; 19, rectangular opening; 20 , the third motor; 21, the third rotating shaft; 22, the tension spring; 23, the tension roller; 24, the transmission roller; 25, the transmission belt; 26, the grinding connecting belt; 27, the grinding column mechanism; 271, the positioning shell; 272, the positioning head; 273, the grinding column; 274, the baffle; 275, the positioning block; 276, the positioning groove; 28, the adjusting roller; 29, the second rotating shaft; 30, the first transmission screw; 31, the ring; 32, the connecting rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] Various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present application, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application, etc., can be purchased from the market or can be prepared by existing equipment.

[0034] In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present application, the terms "include", "comprise", etc. refer to "including but not limited to". In the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In the present application, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0035] like Figure 1-Figure 7 As shown: The embodiment of the present application provides a chip grinding device, comprising:

[0036] A grinding base 1, wherein a position adjustment mechanism is provided inside the grinding base 1, and a pressure column mechanism is fixedly connected to the upper end of the position adjustment mechanism, and two pressure column mechanisms are provided and symmetrically arranged at the upper end of the grinding base 1;

[0037] The pressure column mechanism includes an extrusion shaft 6, a first rotating shaft 9, a connecting ring 10 and a first motor 7. The extrusion shaft 6 is fixedly sleeved on the outside of the first rotating shaft 9. The front and rear sides of the outside of the first rotating shaft 9 are sleeved with the connecting ring 10 through bearings, and the first motor 7 is fixedly connected to the end of the first rotating shaft 9. The lower end of the first motor 7 is fixedly connected to the outside of the connecting ring 10 through a support plate 11.

[0038] The upper four corners of the grinding table 3 at the upper end of the grinding base 1 are fixedly connected to a connecting plate 4 through a supporting rod, and the lower end of the connecting plate 4 is connected to a grinding mechanism 8 whose position can be adjusted;

[0039] The grinding mechanism 8 includes a connecting shell and a grinding mechanism connected inside the connecting shell. The two sides inside the connecting shell are rotatably connected to transmission rollers 24 through rotating shafts. A second motor 16 is fixedly connected to the end of the rotating shaft of one of the transmission rollers 24. The second motor is fixedly connected inside the connecting shell. A transmission belt 25 is sleeved on the outside of the transmission roller 24. A grinding connecting belt 26 is sleeved on the outside of the transmission belt 25. A grinding column mechanism 27 is fixedly connected to the outside of the grinding connecting belt 26 at equal intervals. An adjustable roller 28 is provided at the lower part between the transmission belts 25. A tensioning roller 23 is provided at the upper inner part of the transmission belt 25.

[0040] Specifically: the length of the grinding chip is greater than the length of the outer shell of the grinding mechanism 8

[0041] like Figure 6 and Figure 7 As shown: the polishing column mechanism 27 includes a positioning shell 271, a positioning head 272, a polishing column 273, a baffle 274, a positioning block 275 and a positioning groove 276. The end of the positioning shell 271 close to the polishing connecting belt 26 is fixedly connected to the outside of the polishing connecting belt 26, one end of the positioning shell 271 is fixedly connected to the positioning head 272, and the inner side of the positioning head 272 is fixedly connected to the positioning block 275. The internal limiting plug-in polishing column 273 of the positioning shell 271, the polishing column 273 is exposed from the positioning shell 271 away from the polishing connecting belt 26, and the other end of the positioning shell 271 is fixedly connected to the baffle 274 by bolts.

[0042] Specifically, there are multiple grinding columns 273, so when a grinding column 273 is damaged, only the damaged grinding column 273 can be replaced without replacing all of them, which saves costs and materials. When disassembling, the baffle 274 is removed, and then the grinding column 273 can be pulled out.

[0043] like Figure 7 As shown, a positioning groove 276 is formed at the end of the polishing column 273 close to the positioning block 275 , and the positioning block 275 is movably inserted in the positioning groove 276 . The positioning block 275 is a rectangular block.

[0044] Specifically, the coordinated use of the positioning groove 276 and the positioning block 275 can make the insertion of the polishing column 273 more stable.

[0045] like Figure 5 As shown: the middle part of the adjusting roller 28 is plugged into the second rotating shaft 29 through a bearing, the middle parts of both ends of the second rotating shaft 29 are penetrated and plugged into the first transmission screw 30, both ends of the first transmission screw 30 are sleeved with circular rings 31 through rotating shafts, the outer sides of the circular rings 31 are fixedly connected to the inner wall of the connecting shell through connecting rods 32, and one end of the first transmission screw 30 is fixedly connected to the third motor 20, the thread directions of the first transmission screw 30 are opposite, and the third motor 20 is fixedly connected to the inner wall of the connecting shell.

[0046] Specifically: the third motor 20 adopts existing equipment on the market, which is existing technology. The third motor 20 is equipped with a controller to control the forward and reverse rotation of the third motor 20. The third motor 20 drives the first transmission screw 30 to rotate forward and reverse, thereby driving the second rotating shaft 29 to move relative or oppositely, and adjusting the distance between the two adjusting rollers 28.

[0047] like Figure 4 and Figure 5 As shown: the middle part of the tensioning roller 23 is rotatably connected to the third rotating shaft 21 through a bearing, and the front and rear end limit positions of the third rotating shaft 21 are movably connected to the inside of the rectangular opening 19 opened on the side wall of the connecting shell, and a tensioning spring 22 is fixedly provided on the lower inner part of the rectangular opening 19 of the third rotating shaft 21.

[0048] Specifically, the tension spring 22 is always in a compressed state, and the existence of the tension roller 23 can keep the transmission belt 25 in a tensioned state all the time, thereby ensuring that the lower portion of the transmission belt 25 between the two adjusting rollers 28 is level.

[0049] like Figure 4 As shown: the upper end of the connecting shell is transmission-connected with a cross screw 18, the upper end of the cross screw 18 is fixedly connected with a first electric telescopic rod 5, and the first electric telescopic rod 5 is fixedly connected to the upper end of the connecting plate 4.

[0050] Specifically, the cross screw 18 adopts the existing equipment on the market, and is formed by two screws staggered to form the adjustment direction of the X-axis and the Y-axis.

[0051] like Figure 2 As shown: a plurality of material plates are arranged on the outer side of the extrusion shaft 6 .

[0052] Specifically: different extrusion material strips are provided on the extrusion shaft 6, so that the appropriate extrusion positioning material can be replaced according to the type of material of the grinding chip. The hardness of each extrusion positioning material is different, so that the extruded chip can be protected to avoid damage to the chip due to the high hardness of the extrusion material.

[0053] like Figure 3 As shown: the position adjustment mechanism includes a connecting rod body 12, a reinforcing rod 13, a second electric telescopic rod 14, a second transmission screw 15 and a fourth motor 2, the connecting rod bodies 12 are provided with four, and the second electric telescopic rods 14 are fixedly connected to the upper inner parts of the four connecting rod bodies 12, and the upper ends of the transmission rods of the second electric telescopic rods 14 are correspondingly fixedly connected to the lower end of the connecting ring 10, and the reinforcing rods 13 are fixedly connected to the lower parts between the front and rear connecting rod bodies 12, and the second transmission screw 15 is threadedly inserted in the middle of the reinforcing rod 13, and the two sides of the second transmission screw 15 are inserted into the side walls of the grinding base 1 through bearings, and the threads on both sides of the second transmission screw 15 are in opposite directions.

[0054] Specifically, the forward and reverse rotation of the fourth motor 2 causes the forward and reverse rotation of the second transmission screw 15, thereby driving the two reinforcing rods 13 to move relative or oppositely, thereby causing the connecting rod bodies 12 at both ends of the reinforcing rods 13 to move, thereby adjusting the distance between the two pairs of connecting rod bodies 12.

[0055] like Figure 1 and Figure 3 As shown: the end of the second transmission screw 15 is fixedly connected to the fourth motor 2, the fourth motor 2 is fixedly connected to the outer wall of the grinding base 1, the lower end of the connecting rod body 12 is fixedly connected to a slider, and the slider is slidably inserted into the slide groove 17 opened on the lower side plate of the inner cavity of the grinding base 1.

[0056] Specifically, the fourth motor 2 adopts an existing motor on the market, and the fourth motor 2 is equipped with a control to control the forward and reverse rotation of the fourth motor 2. The coordinated use of the slider and the slide groove 17 can make the displacement of the connecting rod body 12 more stable.

[0057] like Figure 1 and Figure 2 As shown, the front and rear sides of the grinding table 3 are both provided with rectangular openings, and the transmission rod of the second electric telescopic rod 14 is movably inserted into the rectangular opening.

[0058] Specifically, the rectangular opening is the position path of the transmission rod of the second electric telescopic rod 14, and the second electric telescopic rod 14 adopts existing equipment on the market.

[0059] Principle of use: When positioning the chip to be ground, first place the chip on the upper end of the grinding table 3, then start the second electric telescopic rod 14, thereby driving the two pressure column mechanisms to move upward, and then start the fourth motor 2, which drives the second transmission screw 15 to rotate, thereby driving the two reinforcing rods 13 to move relative or oppositely, thereby adjusting the distance between the two pressure column mechanisms, that is, adjusting the distance between the two pressure column mechanisms according to the size of the chip. After the position of the pressure column mechanism is adjusted, start the second electric telescopic rod 14, which drives the two pressure column mechanisms to move downward, thereby squeezing the upper end surface of the ground chip, and positioning the ground chip;

[0060] Furthermore, the first motor 7 drives the first rotating shaft 9 to rotate, thereby driving the extrusion shaft 6 to rotate. Because different extrusion material strips are provided on the extrusion shaft 6, the appropriate extrusion positioning material can be replaced according to the type of material of the chip to be ground. The hardness of each extrusion positioning material is different, so that the extruded chip can be protected to avoid damage to the chip due to the high hardness of the extrusion material.

[0061] After the chip is fixed, the cross screw 18 is started to adjust the position of the grinding mechanism 8, and the two third motors 20 are started to drive the first transmission screw 30 to rotate, and the distance between the two adjusting rollers 28 is adjusted, so that the distance between the two adjusting rollers 28 is adjusted according to the area of ​​the chip to be polished, and the lower end surface of the adjusting roller 28 will be lower than the lower end surface of the transmission roller 24, so that the lower grinding column mechanism 27 between the adjusting rollers 28 will protrude from the lower end of the outer shell of the grinding mechanism 8, and due to the action of the tensioning roller 23, the lower grinding column mechanism 27 between the adjusting rollers 28 will be in a horizontal state, and then the second motor 16 is started to drive one of the transmission rollers 24 to rotate, so that the outer transmission belt 25, the grinding connecting belt 26 and the grinding column mechanism 27 can be cyclically displaced, and the first electric telescopic rod 5 is started to drive the cross screw 18 and the grinding mechanism 8 to slowly move downward, so as to grind the specified position of the chip;

[0062] Furthermore, there are multiple grinding columns 273, so when a grinding column 273 is damaged, only the damaged grinding column 273 can be replaced without replacing all of them, which saves costs and materials. When disassembling, the baffle 274 is removed, and then the grinding column 273 can be pulled out.

[0063] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. It will be apparent to those skilled in the art that various modifications to these embodiments are possible, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features applied for by the present application.

Claims

1. A chip grinding device, characterized in that: include: A grinding base (1), wherein a position adjustment mechanism is provided inside the grinding base (1), and a pressure column mechanism is fixedly connected to the upper end of the position adjustment mechanism, wherein two pressure column mechanisms are provided and are symmetrically arranged at the upper end of the grinding base (1); The pressure column mechanism comprises an extrusion shaft (6), a first rotating shaft (9), a connecting ring (10) and a first motor (7); the extrusion shaft (6) is fixedly sleeved on the outside of the first rotating shaft (9); the front and rear sides of the outside of the first rotating shaft (9) are sleeved with the connecting ring (10) via bearings; the first motor (7) is fixedly connected to the end of the first rotating shaft (9); the lower end of the first motor (7) is fixedly connected to the outside of the connecting ring (10) via a support plate (11); The upper four corners of the grinding table (3) at the upper end of the grinding base (1) are fixedly connected to a connecting plate (4) via support rods, and the lower end of the connecting plate (4) is connected to a grinding mechanism (8) whose position can be adjusted; The grinding mechanism (8) comprises a connecting shell and a grinding mechanism connected therein, the connecting shell having two sides rotatably connected to transmission rollers (24) via a rotating shaft, one of the rotating shaft ends of the transmission rollers (24) being fixedly connected to a second motor (16), the second motor being fixedly connected inside the connecting shell, a transmission belt (25) being sleeved on the outer side of the transmission roller (24), a grinding connecting belt (26) being sleeved on the outer side of the transmission belt (25), a grinding column mechanism (27) being equidistantly fixedly connected to the outer side of the grinding connecting belt (26), an adjusting roller (28) with an adjustable position being provided at the lower part between the transmission belts (25), and a tensioning roller (23) being provided at the inner upper part of the transmission belt (25).

2. A chip grinding device according to claim 1, characterized in that: The polishing column mechanism (27) comprises a positioning shell (271), a positioning head (272), a polishing column (273), a baffle (274), a positioning block (275) and a positioning groove (276); the end of the positioning shell (271) close to the polishing connecting belt (26) is fixedly connected to the outer side of the polishing connecting belt (26); one end of the positioning shell (271) is fixedly connected to the positioning head (272), and the inner side of the positioning head (272) is fixedly connected to the positioning block (275); the inner limit of the positioning shell (271) is inserted into the polishing column (273); the side of the polishing column (273) away from the polishing connecting belt (26) is exposed from the positioning shell (271); the other end of the positioning shell (271) is fixedly connected to the baffle (274) by bolts.

3. A chip grinding device according to claim 2, characterized in that: A positioning groove (276) is formed at the end of the polishing column (273) close to the positioning block (275). The positioning block (275) is movably inserted into the positioning groove (276). The positioning block (275) is a rectangular block.

4. A chip grinding device according to claim 1, characterized in that: The middle part of the adjusting roller (28) is plugged into the second rotating shaft (29) through a bearing, and the middle parts of both ends of the second rotating shaft (29) are penetrated and plugged into the first transmission screw (30), and both ends of the first transmission screw (30) are sleeved with a circular ring (31) through a rotating shaft, and the outer side of the circular ring (31) is fixedly connected to the inner side wall of the connecting shell through a connecting rod (32), and one end of the first transmission screw (30) is fixedly connected to the third motor (20), the thread directions of the first transmission screw (30) are opposite, and the third motor (20) is fixedly connected to the inner side wall of the connecting shell.

5. A chip grinding device according to claim 1, characterized in that: The middle part of the tensioning roller (23) is rotatably plugged into the third rotating shaft (21) through a bearing, and the front and rear ends of the third rotating shaft (21) are limitedly and movably plugged into the inside of a rectangular opening (19) opened on the side wall of the connecting shell, and a tensioning spring (22) is fixedly provided at the lower inner part of the third rotating shaft (21) plugged into the rectangular opening (19).

6. A chip grinding device according to claim 1, characterized in that: The upper end of the connecting shell is transmission-connected to a cross screw (18), the upper end of the cross screw (18) is fixedly connected to a first electric telescopic rod (5), and the first electric telescopic rod (5) is fixedly connected to the upper end of the connecting plate (4).

7. A chip grinding device according to claim 1, characterized in that: A plurality of material plates are arranged on the outer side of the extrusion shaft (6).

8. A chip grinding device according to claim 1, characterized in that: The position adjustment mechanism comprises a connecting rod body (12), a reinforcing rod (13), a second electric telescopic rod (14), a second transmission screw (15) and a fourth motor (2); four connecting rod bodies (12) are provided, and the second electric telescopic rod (14) is fixedly connected to the upper inner parts of the four connecting rod bodies (12), and the upper ends of the transmission rods of the second electric telescopic rods (14) are correspondingly fixedly connected to the lower end of the connecting ring (10); a reinforcing rod (13) is fixedly connected to the lower parts between the front and rear connecting rod bodies (12), and the second transmission screw (15) is inserted into the middle part of the reinforcing rod (13) by means of threads, and the two sides of the second transmission screw (15) are inserted into the side walls of the grinding base (1) by means of bearings, and the two sides of the second transmission screw (15) have opposite thread directions.

9. A chip grinding device according to claim 8, characterized in that: The end of the second transmission screw (15) is fixedly connected to a fourth motor (2), and the fourth motor (2) is fixedly connected to the outer wall of the grinding base (1). The lower end of the connecting rod body (12) is fixedly connected to a slider, and the slider is slidably inserted into a slide groove (17) provided on the lower side plate of the inner cavity of the grinding base (1).

10. The chip grinding device according to claim 1, characterized in that: The front and rear sides of the grinding table (3) are both provided with rectangular openings, and the transmission rod of the second electric telescopic rod (14) is movably inserted into the rectangular opening.

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