A kind of flat seaming machine shell processing clamp

Abstract

The utility model provides a kind of fixture for flat sewing machine shell processing, including bottom plate, positioning pad is provided on bottom plate, positioning pin is provided on positioning pad, positioning pin is inserted with the process hole of being opened in the rear window surface of flat sewing machine shell, a plurality of clamping heads are slidably arranged on the bottom plate and clamped to the left and right side surfaces of flat sewing machine shell, feeding device is provided on the bottom plate to drive the reciprocating linear motion of clamping head away from or close to the clamping position. The fixture for flat sewing machine shell processing is fixed by setting positioning pin, clamping head and feeding device, compared with manual clamping and fixing in the prior art, it has the advantages of high safety and high clamping precision.

Description

Technical Field

[0001] This utility model relates to the technical field of processing the housing of a flat sewing machine, and in particular to a fixture for processing the housing of a flat sewing machine. Background Technology

[0002] A flatbed sewing machine, also known as a single-needle flatbed sewing machine, is an industrial sewing machine that uses two threads—a needle and a shuttle—to form a lockstitch. It can sew two or more layers of fabric together or add decorative stitches to fabric. Flatbed sewing machines can sew garments, bedding, bags, tablecloths, curtains, etc., made of silk, linen, cotton, wool, synthetic fibers, and soft leather or artificial leather. They can perform sewing work from two layers of silk to multiple layers of soft leather.

[0003] like Figure 1 and 2 As shown, a flat sewing machine housing 1 has a thread clamping hole 2 and an adjusting stud hole 3 on the front side, a left groove 4 on the left side, and a right groove 5 on the right side.

[0004] Currently, when using a drilling machine to process the thread clamp holes and adjusting stud holes on the machine housing of a flat sewing machine, the worker draws a baseline on the front of the machine housing to determine the drilling position, ensuring that the drill bit is aligned with the center of the hole. Then, the worker uses a center punch to drill a hole at the center point of the baseline as a positioning mark for subsequent drilling. The worker then manually fixes the machine housing of the flat sewing machine on the worktable of the drilling machine and aligns the positioning mark formed by the center punch with the drill bit of the drilling machine. Finally, the drill bit of the drilling machine moves down to complete the drilling work.

[0005] The existing technical solutions mentioned above have the following drawbacks: When drilling holes in the casing of existing flat sewing machines, manual marking and positioning and manual clamping are used to assist in the drilling process, which has problems of low safety and poor clamping accuracy. Utility Model Content

[0006] The present invention aims to address the aforementioned shortcomings in the prior art by providing a jig for machining the housing of a flat sewing machine, which solves the problems of low safety and poor clamping accuracy in the prior art.

[0007] The above-mentioned utility model objective is achieved through the following technical solution: a jig for processing the housing of a flat sewing machine, including a base plate, a positioning pad on the base plate, a positioning pin on the positioning pad, the positioning pin being inserted into a process hole opened on the rear window of the flat sewing machine housing, a plurality of clamping heads slidably arranged on the base plate and clamping them to the left and right sides of the flat sewing machine housing, and a feeding device on the base plate for driving the clamping heads to perform reciprocating linear motion away from or towards the clamping position.

[0008] The present invention is further configured such that: the clamping head includes a clamping plate and an insert block, the insert block is inserted into the left groove or the right groove, and the clamping plate abuts against the left side and the right side of the sewing machine housing.

[0009] The present invention is further configured such that: the feeding device includes a gear rail and a feeding seat; the gear rail is disposed on the top surface of the base plate; the feeding seat is slidably disposed on the base plate; a seat cavity is opened on the bottom surface of the feeding seat; a feeding gear that meshes with the gear rail is rotatably disposed in the seat cavity; a drive wheel assembly for driving the feeding gear to rotate is disposed on the feeding seat; and the clamping head is disposed on the side wall of the feeding seat facing the clamping position through a clamping plate.

[0010] The present invention is further configured such that: the drive wheel assembly includes a self-locking motor, the self-locking motor is disposed on the top surface of the feed seat, the output shaft of the self-locking motor extends into the seat cavity and is coaxially connected to an input bevel gear, a gear shaft coaxially connected to the feed gear is rotatably disposed in the seat cavity, and a transmission bevel gear meshing with the input bevel gear is coaxially disposed on the gear shaft.

[0011] The present invention is further configured such that: a top mounting ring is provided on the top cavity wall of the seat cavity, the middle part of the top mounting ring is a top mounting groove, and a top bearing fitted on the output shaft of the self-locking motor is embedded in the top mounting groove.

[0012] The present invention is further configured such that: a side mounting ring is provided on the side cavity wall of the seat cavity, the middle part of the side mounting ring is a side mounting groove, and a side bearing fitted on the gear shaft is embedded in the side mounting groove.

[0013] The present invention is further configured such that: a plurality of linear guide rails located on the side of the feed seat are provided on the top surface of the base plate; a fixing plate is provided on the side wall of the feed seat facing the linear guide rails; and a linear slider that slides in cooperation with the linear guide rails is provided on the bottom surface of the fixing plate.

[0014] The present invention is further configured such that a reinforcing plate is fixedly connected between the top surface of the fixing plate and the side wall of the feed seat.

[0015] The present invention is further configured such that a pin hole is provided on the top surface of the positioning pad, and the positioning pin is inserted into the pin hole.

[0016] In summary, the beneficial technical effects of this utility model are as follows: This clamp for processing the machine casing of a flat sewing machine uses positioning pins, clamping heads, and a feeding device to clamp and fix the machine casing of the flat sewing machine. Compared with the manual clamping and fixing in the prior art, it has the advantages of high safety and high clamping accuracy. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the front view of the casing of a flatbed sewing machine in the prior art;

[0018] Figure 2 This is a structural schematic diagram of the back of the casing of a flat sewing machine in the prior art;

[0019] Figure 3 This is a schematic diagram of the structure of the fixture for processing the housing of the flat sewing machine in this utility model;

[0020] Figure 4 This is a structural schematic diagram of the base plate, positioning pad, and positioning pin of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the clamping head and feeding device in this utility model;

[0022] Figure 6 This is a cross-sectional view of the feeding device in this utility model.

[0023] In the above attached diagram: 1. Flatbed sewing machine housing; 2. Thread clamp hole; 3. Adjusting stud hole; 4. Left groove; 5. Right groove; 6. Process hole; 7. Base plate; 8. Positioning pad; 9. Pin hole; 10. Positioning pin; 11. Clamping head; 111. Clamping plate; 112. Insert block; 12. Feeding device; 13. Feed seat; 14. Gear rail; 15. Seat cavity; 16. Feed gear; 17. Self-locking motor; 18. Input bevel gear; 19. Gear shaft; 20. Transmission bevel gear; 21. Top mounting ring; 22. Top mounting groove; 23. Top bearing; 24. Side mounting ring; 25. Side mounting groove; 26. Side bearing; 27. Rack through hole; 28. Linear slide rail; 29. ​​Fixing plate; 30. Reinforcing plate; 31. Linear slider. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 3 As shown, this utility model proposes a fixture for processing the housing of a flat sewing machine, including a base plate 7, a positioning pad 8, a positioning pin 10, a clamping head 11, and a feeding device 12.

[0026] like Figure 3 As shown, in this embodiment, the base plate 7 is a rectangular plate, and the base plate 7 is screwed to the worktable of the drilling machine, that is, the position of the base plate 7 relative to the drill bit of the drilling machine is fixed.

[0027] like Figure 3 and 4As shown, in this embodiment, there are two positioning pads 8. The two positioning pads 8 are screwed to the base plate 7. The two positioning pads 8 are respectively set to the two process holes 6 of the sewing machine housing 1. A pin hole 9 is opened on the top surface of the positioning pad 8, and a positioning pin 10 is inserted into the pin hole 9. The top of the positioning pin 10 protrudes from the top surface of the positioning pad 8.

[0028] like Figure 2 As shown, in this embodiment, a plurality of process holes 6 are provided on the rear window surface of the flat sewing machine housing 1. The process holes 6 are inserted into the positioning pins 10. The process holes 6 are used to assist the positioning pins 10 in positioning the flat sewing machine housing 1.

[0029] like Figure 3 As shown, in this embodiment, the clamping head 11 is laterally slidably disposed on the base plate 7. There are two clamping heads 11. The two clamping heads 11 clamp the left and right sides of the sewing machine housing 1 to achieve the purpose of clamping and fixing the sewing machine housing 1. The clamping head 11 includes a clamping plate 111 and an insert block 112. The clamping plate 111 abuts against the left and right sides of the sewing machine housing 1. The insert block 112 is fixedly connected to the side wall of the clamping plate 111 facing the sewing machine housing 1. The insert block 112 is inserted into the left groove 4 or the right groove 5.

[0030] like Figure 3 As shown, the feed device 12 is used to drive the clamping head 11 to make reciprocating linear motion away from or near the clamping position, where the clamping position refers to the fixed position of the sewing machine housing 1 when drilling.

[0031] like Figure 5 and 6 As shown, the feeding device 12 includes a feed seat 13, a gear rail 14, a feed gear 16, and a drive wheel assembly.

[0032] like Figure 5 and 6 As shown, in this embodiment, the feed seat 13 is slidably disposed on the base plate 7, and the clamping head 11 is connected to the side wall of the feed seat 13 facing the clamping position by screws through the clamping plate 111, so the clamping head 11 can follow the feed seat 13 to perform reciprocating linear motion.

[0033] like Figure 5 and 6 As shown, the gear rail 14 is fixedly connected to the top surface of the base plate 7. The top surface of the gear rail 14 is a straight tooth surface. The length direction of the gear rail 14 is the same as the length direction of the base plate 7, and the length direction of the gear rail 14 is the same as the moving direction of the feed device 12. A seat cavity 15 is provided on the bottom surface of the feed seat 13. The feed gear 16 is rotatably disposed in the seat cavity 15 and meshes with the gear rail 14.

[0034] like Figure 5 and 6As shown, the drive wheel assembly is used to drive the feed gear 16 to rotate, thereby causing the feed seat 13 to reciprocate linearly along the length of the gear track 14. The drive assembly includes a self-locking motor 17, which is fixedly mounted on the top surface of the feed seat 13. The output shaft of the self-locking motor 17 passes through the seat wall of the feed seat 13 and extends into the seat cavity 15. After the output shaft of the self-locking motor 17 extends into the seat cavity 15, an input bevel gear 18 is coaxially arranged. A gear shaft 19 is rotatably arranged in the seat cavity 15. A transmission bevel gear 20 is coaxially mounted on the gear shaft 19 via a key connection. The transmission bevel gear 20 meshes with the input bevel gear 18. The gear shaft 19 is coaxially connected to the feed gear 16 via a key connection.

[0035] like Figure 5 and 6 As shown, a top mounting ring 21 is fixedly connected to the top cavity wall of the seat cavity 15. The top mounting ring 21 is circular, and the middle part of the top mounting ring 21 is a top mounting groove 22. A top bearing 23 is embedded in the top mounting groove 22. The top bearing 23 is mounted on the output shaft of the self-locking motor 17, so that the output shaft of the self-locking motor 17 can rotate relatively stably.

[0036] like Figure 5 and 6 As shown, two side mounting rings 24 are fixedly connected to the opposite side walls of the seat cavity 15. The side mounting rings 24 are circular rings, and the middle part of the side mounting rings 24 is a side mounting groove 25. A side bearing 26 is embedded in the side mounting groove 25. The side bearing 26 is fitted onto the end of the gear shaft 19, so that the gear shaft 19 can rotate stably.

[0037] like Figure 5 and 6 As shown, a rack through hole 27 is provided on the feed seat 13 along the feed direction of the feed device 12. The rack through hole 27 is a rectangular hole and communicates with the seat cavity 15, allowing the rack rail 14 to pass through. This design allows the feed gear 16 and the transmission bevel gear 20 to be housed within the seat cavity 15 of the feed seat 13, preventing damage from impacts.

[0038] like Figure 5 and 6 As shown, in this embodiment, two linear slide rails 28 are screwed onto the top surface of the base plate 7. The two linear slide rails 28 are located on both sides of the feed seat 13, and the length direction of the linear slide rails 28 is the same as the feed direction of the feed device 12. A fixing plate 29 is fixedly connected to the side wall of the feed seat 13 facing the linear slide rails 28. A reinforcing plate 30 is fixedly connected between the top surface of the fixing plate 29 and the side wall of the feed seat 13. A linear slider 31 that slides with the linear slide rails 28 is screwed onto the bottom surface of the fixing plate 29, thus restricting the feed seat 13 to move along the width direction of the base plate 7.

[0039] The detailed clamping process of the sewing machine housing 1 in this embodiment is as follows:

[0040] S1: The worker places the flat sewing machine housing 1 on two positioning pads 8 and makes the two positioning pins 10 engage with the two process holes 6 of the flat sewing machine housing 1. At this time, the flat sewing machine housing 1 is restricted from horizontal movement to a certain extent.

[0041] S2: The self-locking motor 17 drives the input bevel gear 18 to rotate, and the transmission bevel gear 20 meshing with the input bevel gear 18 rotates accordingly, which in turn drives the gear shaft 19 to rotate. The rotation of the gear shaft 19 will drive the drive gear to rotate. Since the drive gear meshes with the gear rail 14, the feed seat 13 drives the clamping head 11 to move closer to the flat sewing machine housing 1 until the insert block 112 is inserted and engaged with the left groove 4 or the right groove 5, and the clamping plate 111 abuts against the left and right sides of the flat sewing machine housing 1. Then the output shaft of the self-locking motor 17 self-locks, and the two clamping heads 11 remain clamped and fixed to the flat sewing machine housing 1. At this time, the flat sewing machine housing 1 is restricted from jumping.

[0042] The fixture for processing the machine casing of this flat sewing machine uses a positioning pin 10, a clamping head 11, and a feeding device 12 to clamp and fix the machine casing 1. Compared with the manual clamping and fixing in the prior art, it has the advantages of high safety and high clamping accuracy.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions 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 solutions of this utility model without departing from the spirit and scope of the technical solutions 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 fixture for machining the housing of a flat sewing machine, characterized in that: Includes a base plate (7), on which a positioning pad (8) is provided, and on which a positioning pin (10) is provided, the positioning pin (10) is inserted into a process hole (6) opened on the rear window of the sewing machine housing (1). Multiple clamping heads (11) that clamp the left and right sides of the sewing machine housing (1) are slidably provided on the base plate (7). A feeding device (12) that drives the clamping heads (11) to make reciprocating linear motion away from or near the clamping position is provided on the base plate (7).

2. The fixture for machining the housing of a flat sewing machine according to claim 1, characterized in that: The clamping head (11) includes a clamping plate (111) and an insert (112). The insert (112) is inserted into the left groove (4) or the right groove (5). The clamping plate (111) abuts against the left and right sides of the sewing machine housing (1).

3. The fixture for machining the housing of a flat sewing machine according to claim 2, characterized in that: The feeding device (12) includes a gear rail (14) and a feed seat (13). The gear rail (14) is disposed on the top surface of the base plate (7). The feed seat (13) is slidably disposed on the base plate (7). A seat cavity (15) is opened on the bottom surface of the feed seat (13). A feed gear (16) that meshes with the gear rail (14) is rotatably disposed in the seat cavity (15). A drive wheel assembly for driving the feed gear (16) to rotate is disposed on the feed seat (13). The clamping head (11) is disposed on the side wall of the feed seat (13) facing the clamping position through a clamping plate (111).

4. A jig for machining the housing of a flat sewing machine according to claim 3, characterized in that: The drive wheel assembly includes a self-locking motor (17), which is located on the top surface of the feed seat (13). The output shaft of the self-locking motor (17) extends into the seat cavity (15) and is coaxially connected to an input bevel gear (18). A gear shaft (19) coaxially connected to the feed gear (16) is rotatably arranged in the seat cavity (15). A transmission bevel gear (20) meshing with the input bevel gear (18) is coaxially arranged on the gear shaft (19).

5. A jig for machining the housing of a flat sewing machine according to claim 4, characterized in that: A top mounting ring (21) is provided on the top cavity wall of the seat cavity (15). The top mounting ring (21) has a top mounting groove (22) in the middle. A top bearing (23) is embedded in the top mounting groove (22) and is fitted on the output shaft of the self-locking motor (17).

6. A jig for machining the housing of a flat sewing machine according to claim 4, characterized in that: A side mounting ring (24) is provided on the side cavity wall of the seat cavity (15). The middle part of the side mounting ring (24) is a side mounting groove (25). A side bearing (26) fitted on the gear shaft (19) is embedded in the side mounting groove (25).

7. A jig for machining the housing of a flat sewing machine according to claim 3 or 4, characterized in that: The top surface of the base plate (7) is provided with a plurality of linear guide rails located on the side of the feed seat (13). A fixing plate (29) is provided on the side wall of the feed seat (13) facing the linear guide rails. A linear slider (31) that slides with the linear guide rails is provided on the bottom surface of the fixing plate (29).

8. A jig for machining the housing of a flat sewing machine according to claim 7, characterized in that: A reinforcing plate (30) is fixedly connected between the top surface of the fixed plate (29) and the side wall of the feed seat (13).

9. A fixture for machining the housing of a flat sewing machine according to claim 1, characterized in that: The top surface of the positioning pad (8) is provided with a pin hole (9), and the positioning pin (10) is inserted into the pin hole (9).

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