Double-sided polishing machine for chip passive components

Abstract

The utility model relates to double -sided grinding technical field, proposes a kind of double-sided grinder for chip passive element, including body, the bottom of the body is fixedly connected with support foot pad, the side bolt connection of the body has maintenance window, the side bolt connection of the maintenance window has screw, the top of the body is fixedly connected with support seat, the top of the support seat is provided with upper grinding mechanism. By the cooperation of the components such as telescopic electric pole, displacement plate and upper grinding plate inside upper grinding mechanism, air tank of circumferential array, telescopic electric pole can be evenly pressed, ensure grinding accuracy and equipment stability, air tank and air pipe cooperate to realize air pressure linkage adjustment, adapt to different grinding stage pressure demand, and provide buffer protection. Sliding slot and displacement plate constraint radial motion, facilitate modular maintenance. In addition, closed-loop feedback ensures accurate position, and grinding plate can also be quickly replaced, significantly improve production efficiency and equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of double-sided grinding technology, specifically to a double-sided grinding machine for chip passive components. Background Technology

[0002] A double-sided grinding machine is a precision machining device that simultaneously grinds and polishes both sides of a workpiece through the relative movement of two grinding discs. Its structure typically includes grinding discs, a pressure mechanism, and a planetary gear transmission system. It can process various materials such as glass, ceramics, and metals, and is widely used in optical components, semiconductors, and precision machinery. This equipment boasts advantages such as high processing efficiency, good surface finish, and high parallelism. By adjusting the grinding pressure, speed, and abrasive type, it can meet the high-precision machining requirements of different workpieces, making it a key piece of equipment for achieving uniform grinding on both sides of a workpiece.

[0003] According to a public disclosure of a double-sided grinding machine (publication number: CN217225051U), it includes: a machine body, a dust collection device for adsorbing particles and powder on one side of the machine body, the dust collection device including a support plate horizontally fixed to the side of the machine body and close to the bottom of the machine body, a support column on the side of the support plate facing the bottom, a dust collection box with air inlet and outlet on the support plate, an exhaust unit for extracting air from the dust collection box outlet, and a dust collection pipe for adsorbing particles and powder on the air inlet of the dust collection box. The arc-shaped cover absorbs a large amount of powder generated during the processing of the machine body, so that very little powder floats in the air. The operator can remove the dust collection pipe from the mounting hole and use the dust collection pipe to absorb the powder inside and outside the machine body, which is highly efficient.

[0004] However, the above-mentioned applications lack structural flexibility and overall automation. Some steps still require manual operation by staff, which prevents further improvement in work efficiency. In addition, manual operation has certain errors, affecting the processing accuracy of the products. Utility Model Content

[0005] This invention proposes a double-sided grinding machine for chip passive components, which solves the problems of insufficient structural flexibility and insufficient overall automation in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides a double-sided grinding machine for chip passive components, comprising: a machine body, a support foot pad fixedly connected to the bottom of the machine body, a maintenance window bolted to the side of the machine body, screws bolted to the side of the maintenance window, a support base fixedly connected to the top of the machine body, and an upper grinding mechanism provided on the top of the support base;

[0007] The upper grinding mechanism includes a small motor and a large motor. The small motor is fixedly connected to the top of the support base. An air box is fixedly connected to the top of the support base. The top of the air box is fixedly connected to the bottom of the small motor. The output shaft of the small motor is fixedly connected to a telescopic rod. A pressing plate is fixedly connected to the end of the telescopic rod away from the small motor. An air pipe is fixedly connected to the side of the air box. A housing is fixedly connected to the side of the air pipe. A sliding groove is provided inside the housing. A displacement plate is fixedly connected to the bottom of the large motor. The side of the displacement plate is slidably connected to the inside of the sliding groove. A rotating shaft is fixedly connected to the output shaft of the large motor. A buckle is fixedly connected to the bottom of the rotating shaft. The circumferential surface of the rotating shaft penetrates the interior of the displacement plate. An upper grinding plate is fixedly connected to the circumferential surface of the rotating shaft away from the large motor.

[0008] For example, in at least one embodiment of this utility model, a double-sided grinding machine for chip passive components is provided, which further includes: a plurality of supporting feet symmetrically arranged along the vertical central axis of the machine body. This symmetrical distribution of the supporting feet along the vertical central axis of the machine body allows for even distribution of the machine's weight to the ground, preventing tilting or shaking of the equipment due to uneven force at a single point and ensuring the stability of the grinding process. A plurality of screws symmetrically arranged along the vertical central axis of the maintenance window facilitates the disassembly and installation of the maintenance window.

[0009] The number of air boxes, telescopic poles, extrusion plates, air pipes, and small motors is arranged in a circular array on the top of the support base. The cooperation of multiple components enables the air boxes to be evenly stressed during air extraction, achieving high-efficiency air extraction. The number of sliding grooves is arranged in a circular array inside the box body. The circular array of sliding grooves inside the box body cooperates with the displacement plate to ensure that the large motor can only move up and down along the axial direction, limiting radial sway and improving the rotational stability of the upper grinding plate.

[0010] The side of the air tube is located on the displacement trajectory of the extrusion plate, and the top of the upper grinding plate is located on the displacement trajectory of the displacement plate, so as to ensure that the displacement plate moves synchronously after the extrusion plate compresses the air.

[0011] The side of the air pipe is located above the extrusion plate, and the side of the air pipe is located above the displacement plate. The placement of the air pipe determines the gas pressure extraction of the air box and the inside of the box.

[0012] According to another aspect, at least one embodiment of this utility model also provides a double-sided polishing machine for chip passive components, comprising: a lower polishing liquid supply mechanism, the lower polishing liquid supply mechanism including a snap-fit ​​sleeve and a rack, a connecting rod fixedly connected to the bottom of the snap-fit ​​sleeve, a half gear fixedly connected to the end of the connecting rod away from the snap-fit ​​sleeve, a lower polishing plate fixedly connected to the circumferential surface of the snap-fit ​​sleeve, a slide rail provided inside the machine body, the circumferential surface of the lower polishing plate slidably connected to the inside of the slide rail, and a rack slidably connected to the inner wall of the machine body. The half gear meshes with the rack. A slider is fixedly connected to the side of the rack. A second slide groove is provided inside the machine body. The side of the slider is slidably connected inside the second slide groove. A spring is fixedly connected to the side of the rack. The side of the spring is fixedly connected to the inside of the machine body. A connecting plate is fixedly connected to the side of the rack. A water pressure plate is fixedly connected to the side of the connecting plate. A water tank is slidably connected to the side of the water pressure plate. A water pipe is fixedly connected to the side of the water tank. A water spraying device is fixedly connected to the end of the water pipe away from the water tank.

[0013] For example, in a double-sided grinding mechanism for a chip passive component provided in at least one embodiment of this utility model, the top of the snap-fit ​​sleeve is located on the displacement trajectory of the snap-fit, the size of the snap-fit ​​sleeve hole is larger than the size of the snap-fit, and when the snap-fit ​​moves up and down with the rotating shaft of the upper grinding mechanism, its displacement trajectory covers the top of the snap-fit ​​sleeve, ensuring that the two can be accurately connected in the vertical direction.

[0014] The maximum rotation radius of the lower grinding plate is greater than that of the upper grinding plate, and the top of the lower grinding plate is located on the displacement trajectory of the upper grinding plate. This allows the edge area to participate in grinding when the upper grinding plate drives the lower grinding plate to rotate, thereby increasing the number of components or the upper size limit that can be processed in a single operation.

[0015] The size of the pressure plate is equal to the size of the water tank, and the side of the pressure plate is located on the displacement trajectory of the rack, which can fully compress and supply the liquid inside the water tank.

[0016] The half gear and the rack have equal widths, which ensures complete contact between the tooth surfaces of the half gear and the rack, avoiding stress concentration or localized wear caused by width differences. The side of the spring is located on the displacement trajectory of the rack. There are two springs, which are symmetrical about each other along the vertical central axis of the slider. The two springs are symmetrically distributed along the central axis of the slider, which can counteract the lateral force generated during the movement of the rack and prevent unilateral wear between the slider and the second groove.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the coordinated operation of components such as the telescopic electric rod, displacement plate, and upper grinding plate within the upper grinding mechanism allows for uniform pressure application from the circumferentially arrayed air box and telescopic electric rod, ensuring grinding accuracy and equipment stability. The air box and air pipe work together to achieve air pressure linkage adjustment, adapting to the pressure requirements of different grinding stages and providing buffer protection. The slide groove and displacement plate constrain radial movement, facilitating modular maintenance. Furthermore, closed-loop feedback ensures precise positioning and allows for quick replacement of the grinding plate, significantly improving production efficiency and equipment reliability.

[0019] 2. In this utility model, the interoperability of components such as the half-gear, rack, and lower grinding plate within the lower grinding fluid supply mechanism ensures stable transmission through the equal-width meshing of the half-gear and rack, while the symmetrical arrangement of springs provides buffering and reset, improving surface flatness. Simultaneously, the rack's movement drives the pressure plate to squeeze the water tank, achieving automatic spraying of the grinding fluid. The fluid supply and grinding actions are precisely coordinated, reducing equipment wear and extending its service life. Attached Figure Description

[0020] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0021] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;

[0022] Figure 2 This is a practical three-dimensional appearance diagram of the grinding and water supply mechanism of this utility model;

[0023] Figure 3 This is a three-dimensional appearance structural diagram of the first cross section of the present invention;

[0024] Figure 4 This is a three-dimensional cross-sectional view of the grinding mechanism of this utility model.

[0025] Figure 5 This is a cross-sectional three-dimensional appearance structural diagram of the grinding liquid supply mechanism of this utility model.

[0026] In the diagram: 1. Body; 2. Support feet; 3. Maintenance window; 4. Screw; 5. Support base; 6. Upper grinding mechanism; 61. Small motor; 62. Large motor; 63. Air box; 64. Telescopic pole; 65. Extrusion plate; 66. Air pipe; 67. Box body; 68. Slide 1; 69. Displacement plate; 610. Buckle; 611. Rotating shaft; 612. Upper grinding plate; 7. Lower grinding liquid supply mechanism; 71. Buckle sleeve; 72. Connecting rod; 73. Half gear; 74. Lower grinding plate; 75. Slide rail; 76. Rack; 77. Slider; 78. Slide 2; 79. Connecting plate; 710. Water pressure plate; 711. Water tank; 712. Water pipe; 713. Water spray device; 714. Spring. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-5 As shown, it illustrates a double-sided grinding machine for a flat passive component according to an embodiment of the present invention, comprising: a machine body 1, a support foot pad 2 fixedly connected to the bottom of the machine body 1, a maintenance window 3 bolted to the side of the machine body 1, screws 4 bolted to the side of the maintenance window 3, a support base 5 fixedly connected to the top of the machine body 1, and an upper grinding mechanism 6 provided on the top of the support base 5.

[0032] The upper grinding mechanism 6 includes a small motor 61 and a large motor 62. The small motor 61 is fixedly connected to the top of the support base 5. An air box 63 is fixedly connected to the top of the support base 5. The top of the air box 63 is fixedly connected to the bottom of the small motor 61. The output shaft of the small motor 61 is fixedly connected to a telescopic rod 64. A pressing plate 65 is fixedly connected to the end of the telescopic rod 64 away from the small motor 61. An air pipe 66 is fixedly connected to the side of the air box 63. A housing 67 is fixedly connected to the side of the air pipe 66. A sliding groove 68 is provided inside the housing 67. A displacement plate 69 is fixedly connected to the bottom of the large motor 62. The side of the displacement plate 69 is slidably connected to the inside of the sliding groove 68. A rotating shaft 611 is fixedly connected to the output shaft of the large motor 62. A buckle 610 is fixedly connected to the bottom of the rotating shaft 611. The circumferential surface of the rotating shaft 611 penetrates the interior of the displacement plate 69. An upper grinding plate 612 is fixedly connected to the circumferential surface of the rotating shaft 611 away from the large motor 62.

[0033] In some examples, the following are also included: A number of support feet 2 are provided, symmetrically arranged along the vertical central axis of the machine body 1. This symmetrical distribution of support feet 2 along the vertical central axis of the machine body 1 ensures that the weight of the machine body 1 is evenly distributed to the ground, preventing tilting or shaking of the equipment due to uneven force at a single point, and ensuring the stability of the grinding process. A number of screws 4 are also provided, symmetrically arranged along the vertical central axis of the maintenance window 3. This symmetrical arrangement of multiple screws 4 makes the disassembly and installation of the maintenance window 3 more convenient.

[0034] Several air boxes 63, telescopic poles 64, extrusion plates 65, air pipes 66, and small motors 61 are arranged in a circumferential array on top of the support base 5. The cooperation of these components ensures that the air boxes 63 are evenly stressed during air extraction, achieving high-efficiency extraction. Several sliding grooves 68 are arranged in a circumferential array inside the housing 67. The circumferential array of sliding grooves 68 inside the housing 67 cooperates with the displacement plate 69 to ensure that the large motor 62 can only move up and down axially, limiting radial sway and improving the rotational stability of the upper grinding plate 612. The side of the air pipe 66 is located on the displacement trajectory of the extrusion plate 65.

[0035] The side of the air tube 66 is located on the displacement trajectory of the displacement plate 69, and the top of the upper grinding plate 612 is located on the displacement trajectory of the displacement plate 69, so as to ensure that the displacement plate 69 moves synchronously after the extrusion plate 65 extrudes the air.

[0036] The side of the air pipe 66 is located above the extrusion plate 65, and the side of the air pipe 66 is located above the displacement plate 69. The placement of the positions determines the gas pressure pumping inside the air box 63 and the box body 67.

[0037] For example, as shown in Figures 1-5, the worker places the sheet-like passive component to be ground on the lower grinding plate 74. The worker starts the small motor 61, which drives the telescopic rod 64 to extend and retract. The extension and retraction of the telescopic rod 64 drives the extrusion plate 65 to move linearly vertically, thereby squeezing the gas in the gas box 63 into the box body 67 through the air pipe 66. The change in atmospheric pressure in the box body 67 causes the displacement plate 69 to move linearly vertically. The movement of the displacement plate 69 causes the buckle 610 to engage with the buckle sleeve 71.

[0038] like Figures 1-5 As shown, this invention illustrates a double-sided polishing machine for chip passive components in another embodiment of the present invention. The technical solution is largely the same as that of Embodiment 1, so only the differences are described. The machine includes: a lower polishing liquid supply mechanism 7, which comprises a snap-fit ​​sleeve 71 and a rack 76. A connecting rod 72 is fixedly connected to the bottom of the snap-fit ​​sleeve 71, and a half-gear 73 is fixedly connected to the end of the connecting rod 72 away from the snap-fit ​​sleeve 71. A lower polishing plate 74 is fixedly connected to the circumferential surface of the snap-fit ​​sleeve 71. A slide rail 75 is provided inside the machine body 1, and the circumferential surface of the lower polishing plate 74 is slidably connected to the inside of the slide rail 75. A rack is slidably connected to the inner wall of the machine body 1. 76. Half gear 73 meshes with rack 76. Slider 77 is fixedly connected to the side of rack 76. Slide groove 78 is opened inside the body 1. Slider 77 is slidably connected to the inside of slide groove 78. Spring 714 is fixedly connected to the side of rack 76. Spring 714 is fixedly connected to the inside of body 1. Connecting plate 79 is fixedly connected to the side of rack 76. Water pressure plate 710 is fixedly connected to the side of connecting plate 79. Water tank 711 is slidably connected to the side of water pressure plate 710. Water pipe 712 is fixedly connected to the side of water tank 711. Water spray device 713 is fixedly connected to the end of water pipe 712 away from water tank 711.

[0039] In some examples, the top of the snap-fit ​​sleeve 71 is located on the displacement trajectory of the snap-fit ​​610, the size of the snap-fit ​​sleeve 71 is larger than the size of the snap-fit ​​610, and when the snap-fit ​​610 moves up and down with the rotating shaft 611 of the upper grinding mechanism 6, its displacement trajectory covers the top of the snap-fit ​​sleeve 71, ensuring that the two can be precisely aligned in the vertical direction.

[0040] The maximum rotation radius of the lower grinding plate 74 is greater than that of the upper grinding plate 612. The top of the lower grinding plate 74 is located on the displacement trajectory of the upper grinding plate 612. This allows the edge area to participate in grinding when the upper grinding plate 612 drives the lower grinding plate 74 to rotate, thereby increasing the number of components or the upper size limit of a single processing operation.

[0041] The size of the pressure plate 710 is equal to that of the water tank 711. The side of the pressure plate 710 is located on the displacement trajectory of the rack 76, which enables the liquid inside the water tank 711 to be fully squeezed and supplied.

[0042] The half gear 73 and the rack 76 have equal widths, which ensures that the tooth surfaces of the half gear 73 and the rack 76 are in complete contact, avoiding stress concentration or localized wear caused by width differences. The side of the spring 714 is located on the displacement trajectory of the rack 76. There are two springs 714, which are symmetrical about each other along the vertical central axis of the slider 77. The two springs 714 are symmetrically distributed along the central axis of the slider 77, which can counteract the lateral force generated during the movement of the rack 76 and prevent unilateral wear between the slider 77 and the second groove 78.

[0043] For example, as shown in Figures 1-5, the operator remotely controls the switch of the large motor 62. The start of the large motor 62 drives the rotating shaft 611 to rotate, which in turn drives the upper grinding plate 612 to rotate. The buckle 610 is engaged inside the buckle sleeve 71, causing the buckle sleeve 71 to rotate, which in turn causes the connecting rod 72 to rotate, which in turn drives the lower grinding plate 74 to rotate. The rotation of the connecting rod 72 drives the half gear 73 to rotate. Under the restrictive action of the slider 77 and the second slide groove 78, the rack 76 performs linear motion. Under the action of the spring 714 and the half gear 73, the rack 76 performs linear reciprocating motion. The linear motion of the rack 76 drives the connecting plate 79 and the water pressure plate 710 to perform linear motion, thereby squeezing the grinding fluid in the water tank 711 into the water spray device 713 through the water pipe 712.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-sided grinding machine for surface-mount passive components, characterized in that, Includes a body (1), the bottom of the body (1) is fixedly connected to a support foot pad (2), the side of the body (1) is bolted to a maintenance window (3), the side of the maintenance window (3) is bolted to a screw (4), the top of the body (1) is fixedly connected to a support base (5), and the top of the support base (5) is provided with an upper grinding mechanism (6). The upper grinding mechanism (6) includes a small motor (61) and a large motor (62). The small motor (61) is fixedly connected to the top of the support base (5). An air box (63) is fixedly connected to the top of the support base (5). The top of the air box (63) is fixedly connected to the bottom of the small motor (61). A telescopic rod (64) is fixedly connected to the output shaft of the small motor (61). An extrusion plate (65) is fixedly connected to the end of the telescopic rod (64) away from the small motor (61). An air pipe (66) is fixedly connected to the side of the air box (63). The side of the air pipe (66) is fixedly connected to... A housing (67) is connected, and a sliding groove (68) is provided inside the housing (67). A displacement plate (69) is fixedly connected to the bottom of the large motor (62). The side of the displacement plate (69) is slidably connected to the inside of the sliding groove (68). A rotating shaft (611) is fixedly connected to the output shaft of the large motor (62). A buckle (610) is fixedly connected to the bottom of the rotating shaft (611). The circumferential surface of the rotating shaft (611) penetrates the inside of the displacement plate (69). An upper grinding plate (612) is fixedly connected to the circumferential surface of the rotating shaft (611) away from the large motor (62).

2. The double-sided grinding machine for chip passive components according to claim 1, characterized in that, The number of the support feet (2) is set to several, and they are symmetrical to each other along the vertical central axis of the body (1). The number of the screws (4) is set to several, and they are symmetrical to each other along the vertical central axis of the maintenance window (3).

3. A double-sided grinding machine for chip passive components according to claim 2, characterized in that, The number of air boxes (63), telescopic poles (64), extrusion plates (65), air pipes (66) and small motors (61) are arranged in a number and are arranged in a circumferential array on the top of the support base (5). The number of sliding grooves (68) are arranged in a number and are arranged in a circumferential array inside the box body (67).

4. A double-sided grinding machine for chip passive components according to claim 3, characterized in that, The side of the trachea (66) is located on the displacement trajectory of the extrusion plate (65), the side of the trachea (66) is located on the displacement trajectory of the displacement plate (69), and the top of the upper grinding plate (612) is located on the displacement trajectory of the displacement plate (69).

5. A double-sided grinding machine for chip passive components according to claim 4, characterized in that, The side of the trachea (66) is located above the extrusion plate (65), and the side of the trachea (66) is located above the displacement plate (69).

6. A double-sided grinding machine for chip passive components according to claim 5, characterized in that, The machine body (1) is equipped with a lower grinding liquid supply mechanism (7). The lower grinding liquid supply mechanism (7) includes a snap-fit ​​sleeve (71). A connecting rod (72) is fixedly connected to the bottom of the snap-fit ​​sleeve (71). A half gear (73) is fixedly connected to the end of the connecting rod (72) away from the snap-fit ​​sleeve (71). A lower grinding plate (74) is fixedly connected to the circumferential surface of the snap-fit ​​sleeve (71). A slide rail (75) is provided inside the machine body (1). The circumferential surface of the lower grinding plate (74) is slidably connected to the inside of the slide rail (75). A rack (76) is slidably connected to the inner wall of the machine body (1). The half gear (73) meshes with the rack (76). A side of the rack (76) is fixedly connected to... The slider (77) has a sliding groove (78) inside the body (1). The side of the slider (77) is slidably connected to the inside of the sliding groove (78). The side of the rack (76) is fixedly connected to a spring (714). The side of the spring (714) is fixedly connected to the inside of the body (1). The side of the rack (76) is fixedly connected to a connecting plate (79). The side of the connecting plate (79) is fixedly connected to a water pressure plate (710). The side of the water pressure plate (710) is slidably connected to a water tank (711). The side of the water tank (711) is fixedly connected to a water pipe (712). The end of the water pipe (712) away from the water tank (711) is fixedly connected to a water spraying device (713).

7. A double-sided grinding machine for chip passive components according to claim 6, characterized in that, The top of the buckle sleeve (71) is located on the displacement trajectory of the buckle (610), and the size of the buckle hole of the buckle sleeve (71) is larger than the size of the buckle (610).

8. A double-sided grinding machine for surface-mount passive components according to claim 7, characterized in that, The maximum rotation radius of the lower grinding plate (74) is greater than that of the upper grinding plate (612), and the top of the lower grinding plate (74) is located on the displacement trajectory of the upper grinding plate (612).

9. A double-sided grinding machine for chip passive components according to claim 8, characterized in that, The size of the pressure plate (710) is equal to the size of the water tank (711), and the side of the pressure plate (710) is located on the displacement trajectory of the rack (76).

10. A double-sided grinding machine for chip passive components according to claim 9, characterized in that, The widths of the half gear (73) and the rack (76) are equal. The side of the spring (714) is located on the displacement trajectory of the rack (76). There are two springs (714), which are symmetrical to each other along the vertical central axis of the slider (77).

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