An internal support fixture for processing watch shell

Abstract

The utility model discloses an internal support clamp for processing a watch shell, which relates to the technical field of mechanical processing, and comprises a support nozzle and a tooling plate for installing the support nozzle. The support nozzle comprises a fixed part and a lower part, a cavity is formed inside the fixed part and the lower part, a support hole penetrating into the cavity is opened at the axis of the fixed part, and a support rod for matching use is arranged in the support hole; a positioning placement structure is arranged on the upper side of the fixed part; a driving structure for driving the support rod is arranged on the lower side of the tooling plate; a material guide structure is arranged inside the cavity, and a loading structure is arranged outside the lower part, waste generated by processing is collected by the material guide structure and the loading structure, and the watch case is clamped and fixed by an internal support clamping method to prevent damage to the surface of the watch case, and waste generated by processing is collected to avoid the waste being accumulated inside the support nozzle and being difficult to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an inner support clamp for processing a watch shell. Background Art

[0002] A watch is a portable timepiece that is carried or worn by people. It is also called a wristwatch. Categories include mechanical watches, electronic watches, and quartz watches. In the production and processing of watches, most watch cases adopt an integrated middle frame structure, and the watch cases are usually processed to provide side holes.

[0003] In the prior art, in order to avoid the damage to the surface of the watch case caused by clamping the lugs of the watch case through a clamp in the traditional processing method, and the problem of unstable clamping causing shaking during processing, the "processing clamp" with announcement number CN110153747B is supported in the inner cavity of the workpiece by a support nozzle using a contoured positioning method, and the pull rod is driven to extend and retract by a driving assembly, so that the support nozzle is opened to fix the watch case. This clamping method can prevent the clamping position of the workpiece from shifting, and can make the workpiece clamping more stable, and is not easy to cause the workpiece to fall off; further, since the inner wall of the inner cavity does not have high requirements for the appearance surface, the damage to the appearance surface caused by clamping on the appearance surface can be reduced.

[0004] However, since the support nozzle needs to be opened to hold the watch case tightly and fix it, the support nozzle will process multiple dividing grooves, which will cause waste generated during the processing of the watch case to fall into the support nozzle through the grooves, making it difficult for workers to clean up, and the accumulation of waste will also affect the normal operation of the drive device. Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the problem that waste enters the support nozzle through the wire groove, which is difficult for workers to clean and affects the normal operation of the driving device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal support fixture for processing watch cases, comprising a support nozzle and a tooling plate for installing the support nozzle, the support nozzle comprising a fixed portion and a lower portion, a cavity is formed inside the fixed portion and the lower portion, a support hole is opened at the axis of the fixed portion and penetrates into the cavity, a support rod for matching use is arranged in the support hole; a positioning and placement structure is provided on the upper side of the fixed portion; a driving structure for driving the support rod is provided on the lower side of the tooling plate; a material guiding structure is provided inside the cavity, and a loading structure is provided on the outer side of the lower portion, and waste generated by processing is collected through the material guiding structure and the loading structure.

[0007] As a further solution of the utility model: the support nozzle also includes at least six wire grooves extending from the fixed portion to the lower portion, and the lower portion is formed with a circular hole at the bottom end of the wire groove.

[0008] As a further solution of the utility model: the positioning and placement structure includes two layers of placement bosses arranged in a stepped manner, a positioning portion and a connecting portion; the fixing portion is formed with two layers of placement bosses arranged in a stepped manner, and the upper layer of the placement bosses is formed with a positioning portion; the lower layer of the placement bosses is provided with at least four connecting portions, and the connecting portions are formed with connecting holes.

[0009] As a further solution of the utility model: the upper end of the support hole is arranged in a conical structure, and the upper end of the support rod is formed with a conical end used in conjunction with the support hole.

[0010] As a further solution of the utility model: the driving structure includes a cylinder, a mounting column, an opening and a mounting hole;

[0011] As a further solution of the utility model: the tooling plate is formed with an opening, and the driving end of the cylinder is fixedly connected to the mounting column through the opening;

[0012] A mounting hole is provided at the axis of the mounting column, the bottom end of the support rod is connected with the inner thread of the mounting hole, and a hexagonal groove is provided on the upper side surface of the tapered end.

[0013] As a further solution of the utility model: the material guide structure includes a material guide plate and a material guide block; a material guide plate with a consistent circular diameter is provided inside the cavity, the material guide plate is hollow, and the hollow shape is consistent with the mounting column, so that the material guide plate is sleeved on the outside of the mounting column, and a material discharge surface inclined downward from the inside to the outside is formed on the upper side of the material guide plate, and the lower end of the material discharge surface is at the same height as the lower end of the circular hole, and at least six material guide blocks are evenly arranged in a ring shape on the material discharge surface, the material guide blocks are located between pairs of circular holes, and both sides of the material guide blocks are inclined toward the circular holes.

[0014] As a further solution of the utility model: the loading structure includes two matching semicircular frames, a discharge port, a slot and a connecting spring; the lower part is covered with two matching semicircular frames, the semicircular frames are provided with loading slots inside, and the inner sides of the semicircular frames are provided with a discharge port corresponding to the position of the circular hole; the two opposite ends of the two semicircular frames are provided with slots, and the slots are provided with connecting springs, and the two ends of the connecting springs are connected to the inner walls of the slots, so that the two semicircular frames are spliced.

[0015] As a further solution of the utility model: the four corners of the lower side of the guide plate are connected to support rods, and the support rods are against the tooling plate.

[0016] As a further solution of the utility model: a fixing ring is provided on the lower side of the lower part, and the fixing ring is fixed to the tooling plate by bolts, and a supporting part is provided on the lower side of the two semicircular frames, and the supporting part abuts against the fixing ring.

[0017] As a further solution of the utility model: support feet are fixedly arranged at the four corners of the lower side of the tooling plate.

[0018] Compared with the prior art, the beneficial effects of this technical solution are:

[0019] The utility model clamps and fixes the watch case by means of an inner support clamping method, and when the watch case is positioned and fixed, damage to the surface of the watch case is prevented; at the same time, waste generated when processing the watch case falls into the support nozzle, and the waste can be collected, so that the waste is not accumulated inside the support nozzle and is difficult to clean, and the waste accumulation is prevented from affecting the normal operation of the driving structure.

[0020] The utility model realizes the positioning and placement of the watch case by arranging the positioning and placement structure, thereby preventing the watch case from rotating and moving up and down during the construction process.

[0021] The utility model guides the waste materials dropped in the support nozzle to be discharged to the outside by arranging the material guide structure, and loads the discharged waste materials through the loading structure, thereby completing the collection of the waste materials.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0025] Figure 2 It is a three-dimensional diagram of the structure explosion diagram of the utility model;

[0026] Figure 3 It is a three-dimensional diagram of the fixing part structure of the utility model;

[0027] Figure 4 It is a three-dimensional diagram of the propping rod structure of the utility model;

[0028] Figure 5It is a partial half-section structural schematic diagram of the utility model;

[0029] Figure 6 It is a three-dimensional diagram of the guide plate and semicircular frame structure of the utility model;

[0030] Figure 7 It is a three-dimensional diagram of the tooling plate structure of the utility model;

[0031] The corresponding reference numerals in the accompanying drawings are described as follows:

[0032] 1. Support nozzle; 101. Fixed part; 102. Lower part; 103. Support hole; 104. Wire groove; 105. Round hole; 106. Placement boss; 1061. Positioning part; 1062. Connecting part; 2. Tooling plate; 201. Opening; 202. Support foot; 3. Support rod; 301. Conical end; 4. Cylinder; 5. Mounting column; 501. Mounting hole; 6. Guide plate; 601. Guide block; 602. Support rod; 7. Semicircular frame; 701. Discharge port; 702. Slot; 703. Connecting spring; 704. Support part; 8. Fixing ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-7 , an internal support fixture for processing a watch case, comprising a support nozzle 1 and a tooling plate 2 for installing the support nozzle 1, the support nozzle 1 comprising a fixed portion 101 and a lower portion 102, a cavity is formed inside the fixed portion 101 and the lower portion 102, a support hole 103 penetrating into the cavity is opened at the axis of the fixed portion 101, a support rod 3 for matching use is built into the support hole 103, a positioning and placement structure is provided on the upper side of the fixed portion 101; a driving structure for driving the support rod 3 is provided on the lower side of the tooling plate 2; a material guiding structure is provided inside the cavity, and a loading structure is provided outside the lower portion 102, and waste generated by processing is collected through the material guiding structure and the loading structure.

[0035] When using the utility model, the watch case is placed on the support nozzle 1 by utilizing the positioning and placement structure, and then the support rod 3 is telescopically moved inside the support hole 103 by the driving structure, and the support rod 3 opens the support nozzle 1, thereby clamping and fixing the watch case. When the watch case is processed, the waste material that falls into the support nozzle 1 is collected by the material guiding structure and the loading structure, without the need for manual cleaning, thereby preventing the waste material from accumulating and affecting the normal operation of the driving structure.

[0036] The support nozzle 1 also includes at least six wire grooves 104 extending from the fixed portion 101 to the lower portion 102. The lower portion 102 is formed with a circular hole 105 at the bottom end of the wire groove 104. The upper end of the support hole 103 is arranged in a conical structure. The upper end of the support rod 3 is formed with a conical end 301 used in conjunction with the support hole 103.

[0037] The fixing part 101 is divided into six equal parts by six line grooves 104. When the driving structure drives the expansion rod 3 to move downward, the tapered end 301 at the upper end presses down the upper end of the expansion hole 103 until the tapered end 301 fits with the upper end of the expansion hole 103. During this process, the downward pressure of the tapered end 301 will cause the six-divided fixing part 101 to expand outward, thereby clamping and fixing the watch case. When the expansion rod 3 rises, the tapered end 301 separates from the upper end of the expansion hole 103, so that the six-divided fixing part 101 is reunited to release the fixation of the watch case, and the circular hole 105 opened on the lower part 102 is used for discharging materials of the material guide structure.

[0038] Specifically, the positioning and placement structure includes two layers of placement bosses 106 arranged in a stepped manner, a positioning portion 1061 and a connecting portion 1062; two layers of placement bosses 106 arranged in a stepped manner are formed on the fixing portion 101, and the upper layer of the placement bosses 106 is formed with a positioning portion 1061; at least four connecting portions 1062 are arranged on the lower layer of the placement bosses 106, and the connecting portions 1062 are formed with connecting holes.

[0039] When placing the watch case, put the watch case on the upper layer of the placing boss 106, and during the placement, the corresponding notch on the watch case is put on the positioning portion 1061, and the positioning portion 1061 is protruding, which can limit the position of the watch case and prevent the watch case from rotating. At this time, start the driving structure to make the expansion rod 3 expand the fixing portion 101, so that the watch case can be clamped and fixed on the placing boss 106. After the fixing portion 101 tightens the watch case, the lugs of the watch case will be aligned with the four connecting portions 1062 on the lower layer of the placing boss 106. At this time, the positioning pin can be used to pass through the through hole of the lug and connect it with the connecting hole on the connecting portion 1062 to position the lug, thereby fixing the position of the watch case to avoid up and down displacement during the processing of the watch case.

[0040] Specifically, the driving structure includes a cylinder 4, a mounting column 5, an opening 201 and a mounting hole 501; the cylinder 4 is installed on the lower side of the tooling plate 2, the mounting column 5 is provided inside the cavity, the tooling plate 2 is formed with an opening 201, and the driving end of the cylinder 4 is fixedly connected to the mounting column 5 through the opening 201; a mounting hole 501 is opened at the axis of the mounting column 5, the bottom end of the support rod 3 is connected to the internal thread of the mounting hole 501, and a hexagonal groove is provided on the upper side of the tapered end 301.

[0041] When using the present invention, first connect the external AC power supply to the present invention to provide energy for the electrical appliances in the present invention, and connect the gas source to the cylinder 4. First, install the cylinder 4 on the lower side of the tooling plate 2, and pass it through the opening 201 to be fixedly connected to the mounting column 5. Then start the cylinder 4, and the cylinder 4 drives the mounting column 5 to perform telescopic movement. The expansion rod 3 is fixedly connected by a threaded connection between the bottom end and the mounting hole 501, so that the mounting column 5 drives the expansion rod 3 to expand the fixed part 101. The expansion rod 3 can be separated from the mounting column 5 by using a matching tool to dock the hexagonal groove on the upper side of the tapered end 301.

[0042] Specifically, the material guide structure includes a material guide plate 6 and a material guide block 601; a material guide plate 6 with the same circular diameter is provided inside the cavity, the material guide plate 6 is hollow, and the hollow shape is consistent with the mounting column 5, so that the material guide plate 6 is sleeved on the outside of the mounting column 5, and a material discharge surface inclined downward from the inside to the outside is formed on the upper side of the material guide plate 6, and the lower end of the material discharge surface is at the same height as the lower end of the circular hole 105, and at least six material guide blocks 601 are evenly arranged in a ring shape on the material discharge surface, the material guide blocks 601 are located between the circular holes 105 in pairs, and both sides of the material guide blocks 601 are inclined toward the circular holes 105, and the loading structure includes two matching semicircular frames 7, a discharge port 701, a slot 702 and a connecting spring 703; the lower portion 102 is covered with two matching semicircular frames 7, a loading slot is provided inside the semicircular frame 7, and a discharge port 701 corresponding to the position of the circular hole 105 is provided on the inner side of the semicircular frame 7.

[0043] The watch case is clamped and fixed, and the waste generated when the watch case is processed falls into the cavity through the wire groove 104. At this time, the waste falls onto the guide plate 6, and the waste is guided to the lower end through the discharge surface formed by sloping downward from the inside to the outside, and the waste falling to the rest of the discharge surface is guided to the circular hole 105 by the guide blocks 601 arranged on both sides inclined toward the circular hole 105, and the lower end of the discharge surface is at the same height as the lower end of the circular hole 105, so that the waste is discharged outward through the circular hole 105, avoiding the waste from falling into the cavity, making it difficult to clean, and preventing the waste from affecting the normal operation of the driving structure. After the waste is discharged through the circular hole 105, it is discharged into the loading slot through the discharge port 701 opened on the inner side of the semicircular frame 7, thereby completing the collection of the waste.

[0044] Preferably, two opposite ends of the two semicircular frames 7 are provided with slots 702 , and connecting springs 703 are provided in the slots 702 . Both ends of the connecting springs 703 are connected to the inner wall of the slots 702 , so that the two semicircular frames 7 are spliced.

[0045] When the expansion rod 3 expands the fixing part 101 to clamp and fix the watch case, since the wire groove 104 is opened to the lower part 102, the lower part 102 will also produce a slight deformation. When the lower part 102 expands outward, it will drive the two semicircular frames 7 to move outward. During the outward movement of the two semicircular frames 7, the connecting springs 703 used for connection in the slots 702 will be stretched. The connecting springs 703 are used to keep the two semicircular frames 7 in contact with the outer wall of the lower part 102 while maintaining connection. At the same time, when the lower part 102 recovers, the connecting springs 703 drive the two semicircular frames 7 to merge again through the traction force during retraction, and are sleeved on the outside of the lower part 102 to keep them in contact.

[0046] Preferably, support rods 602 are connected to the four corners of the lower side of the guide plate 6, and the support rods 602 are against the tooling plate 2, wherein the guide plate 6 is sleeved on the mounting column 5 through the hollow area, but is not fixed to the mounting column 5. The support rods 602 support the guide plate 6 by against the tooling plate 2, and the bottom end of the support rods 602 can be connected to the tooling plate 2 by gluing, so that the height of the guide plate 6 remains unchanged, avoiding the influence of the driving structure driving the mounting column 5, so that the unloading surface is always aligned with the circular hole 105.

[0047] Among them, in order to avoid a gap between the guide plate 6 and the inner wall of the cavity when the lower part 102 expands outward, causing the waste to fall to the bottom of the cavity, a gasket made of silicone rubber can be provided on the outer layer of the guide plate 6. When the lower part 102 does not expand outward, the gasket is in a state of being squeezed by the inner wall of the cavity. When the lower part 102 expands outward, the gasket uses its elastic recovery to restore to its original shape, and then maintains a close fit with the inner wall of the cavity to prevent waste from falling.

[0048] Preferably, a fixing ring 8 is provided on the lower side of the lower portion 102, and the fixing ring 8 is fixed to the tooling plate 2 by bolts, and a supporting portion 704 is provided on the lower sides of the two semicircular frames 7, and the supporting portion 704 resists the fixing ring 8. Through the fixing connection between the fixing ring 8 and the tooling plate 2, the support nozzle 1 is fixedly installed on the tooling plate 2, and at the same time, the two semicircular frames 7 resist the fixing ring 8 through the supporting portion 704 on the lower side to support the semicircular frames 7.

[0049] Furthermore, support feet 202 are fixedly provided at the four corners of the lower side of the tooling plate 2, and the support feet 202 are used to support the utility model. At the same time, the support feet 202 on both sides are also provided with multiple holes, and some placement plates can be placed using these holes to place tools pressed down for processing the watch case.

[0050] Among them, the assembly of the utility model is to first install the cylinder 4 on the lower side of the tooling plate 2, fix the mounting column 5 and the driving end of the cylinder 4, then put the guide plate 6 on the mounting column 5, and then the support nozzle 1 will cover the mounting column 5 in the internal cavity, and then the support nozzle 1 is fixed to the tooling plate 2 by using the fixing ring 8, and at the same time, the two semicircular frames 7 are assembled on the support nozzle 1, and finally the bottom end of the expansion rod 3 is inserted into the expansion hole 103 and docked with the mounting hole 501 on the mounting column 5, and the bottom end of the expansion rod 3 is connected to the internal thread of the mounting hole 501 by rotation, thereby completing the assembly, wherein, multiple holes required for installation are opened on the tooling plate 2, and multiple groups can be installed on the tooling plate 2 as needed.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An internal support fixture for processing a watch case, comprising a support nozzle (1) and a tooling plate (2) for mounting the support nozzle (1), characterized in that: The support nozzle (1) comprises a fixed portion (101) and a lower portion (102); a cavity is formed inside the fixed portion (101) and the lower portion (102); a support hole (103) is formed at the axis of the fixed portion (101) and penetrates into the cavity; a support rod (3) is built into the support hole (103); A positioning structure is provided on the upper side of the fixing portion (101); A driving structure for driving the expansion rod (3) is provided on the lower side of the tooling plate (2); A material guiding structure is provided inside the cavity, and a material loading structure is provided outside the lower portion (102), and waste materials generated during processing are collected through the material guiding structure and the material loading structure.

2. The inner support fixture for processing a watch case according to claim 1, characterized in that: The support nozzle (1) further comprises at least six wire grooves (104) extending from the fixed portion (101) to the lower portion (102), and the lower portion (102) is formed with a circular hole (105) at the bottom end of the wire groove (104).

3. The inner support fixture for processing a watch case according to claim 2, characterized in that: The positioning and placement structure comprises two layers of placement bosses (106) arranged in a stepped manner, a positioning portion (1061) and a connecting portion (1062); The fixing portion (101) is formed with two layers of placement bosses (106) arranged in a stepped manner, and the upper layer of the placement bosses (106) is formed with a positioning portion (1061); The lower layer of the placement boss (106) is provided with at least four connecting parts (1062), and the connecting parts (1062) are formed with connecting holes.

4. The inner support fixture for processing a watch case according to claim 3, characterized in that: The upper end of the expansion hole (103) is provided with a conical structure, and the upper end of the expansion rod (3) is formed with a conical end (301) for use with the expansion hole (103).

5. The inner support fixture for processing a watch case according to claim 4, characterized in that: The driving structure comprises a cylinder (4), a mounting column (5), an opening (201) and a mounting hole (501); A cylinder (4) is installed on the lower side of the tooling plate (2), a mounting column (5) is provided inside the cavity, an opening (201) is formed on the tooling plate (2), and a driving end of the cylinder (4) is fixedly connected to the mounting column (5) through the opening (201); A mounting hole (501) is provided at the axis of the mounting column (5), the bottom end of the support rod (3) is internally threadedly connected to the mounting hole (501), and a hexagonal groove is provided on the upper side of the tapered end (301).

6. The inner support fixture for processing a watch case according to claim 5, characterized in that: The material guiding structure comprises a material guiding plate (6) and a material guiding block (601); A material guide plate (6) having a consistent circular diameter is provided inside the cavity. The material guide plate (6) is hollow and its hollow shape is consistent with that of the mounting column (5), so that the material guide plate (6) is sleeved on the outside of the mounting column (5). A material discharge surface which is inclined downward from the inside to the outside is formed on the upper side surface of the material guide plate (6), and the lower end of the material discharge surface is at the same height as the lower end of the circular hole (105). At least six material guide blocks (601) are evenly arranged in an annular shape on the material discharge surface. The material guide blocks (601) are located between two circular holes (105), and both sides of the material guide blocks (601) are arranged inclined toward the circular holes (105).

7. The inner support fixture for processing a watch case according to claim 6, characterized in that: The loading structure comprises two matching semicircular frames (7), a discharge port (701), a slot (702) and a connecting spring (703); The lower portion (102) is covered with two matching semicircular frames (7), a loading slot is provided inside the semicircular frame (7), and a discharge port (701) corresponding to the position of the circular hole (105) is provided inside the semicircular frame (7); Two opposite ends of the two semicircular frames (7) are provided with slots (702), a connecting spring (703) is provided in the slot (702), and both ends of the connecting spring (703) are connected to the inner wall of the slot (702), so that the two semicircular frames (7) are spliced.

8. The inner support fixture for processing a watch case according to claim 6, characterized in that: The four corners of the lower side of the guide plate (6) are connected to support rods (602), and the support rods (602) are against the tooling plate (2).

9. The inner support fixture for processing a watch case according to claim 7, characterized in that: A fixing ring (8) is provided on the lower side of the lower portion (102), and the fixing ring (8) is fixed to the tooling plate (2) via bolts. Support portions (704) are provided on the lower sides of the two semicircular frames (7), and the support portions (704) abut against the fixing ring (8).

10. The inner support fixture for processing a watch case according to claim 1, characterized in that: Support feet (202) are fixedly provided at the four corners of the lower side of the tooling plate (2).

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