Manual feeding fixture for sawing machines

Abstract

This utility model relates to the field of material feeding fixtures, specifically to a manual material feeding fixture for a saw. The manual material feeding fixture includes: a hydraulic caliper; a hand-cranked slide, including a lower slide plate fixedly connected to the hydraulic caliper, an upper slide plate slidably connected to the lower slide plate, and a hand-cranked screw rotatably connected to the lower slide plate and threadedly connected to the upper slide plate; a clamping structure, including a mounting base mounted on the upper slide plate and a three-jaw chuck mounted on the mounting base; and a support structure provided on the side of the hydraulic caliper near the mounting base. This manual material feeding fixture for a saw can be easily modified on the saw without affecting the main structure of the saw, avoiding various risks that may arise from adding a new structure; simultaneously, the hand-cranked slide drives the material feed, and once fixed, it remains in place until the material is used up, eliminating the need for relocation and resulting in high production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of feeding fixtures, specifically to a manual feeding fixture for a saw. Background Technology

[0002] When loading materials onto a current sawing machine, hydraulic calipers typically clamp the raw material, which is then cut. After cutting, the hydraulic calipers release the material, and the operator manually adjusts its position, moving it outward by a distance equal to the thickness of the finished part. The hydraulic calipers then clamp the material again. However, in actual use, it has been found that manually moving the material outward by manually adjusting the feed is inefficient.

[0003] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0004] To improve or solve the technical problem of low production efficiency of manual feeding in existing technologies, this utility model provides a manual feeding fixture for a saw. The manual feeding fixture includes: a hydraulic caliper; a hand-cranked slide, including a lower slide plate fixedly connected to the hydraulic caliper, an upper slide plate slidably connected to the lower slide plate, and a hand-cranked screw rotatably connected to the lower slide plate and threadedly connected to the upper slide plate; a clamping structure, including a mounting base mounted on the upper slide plate and a three-jaw chuck mounted on the mounting base; and a support structure provided on the side of the hydraulic caliper near the mounting base.

[0005] This utility model relates to a manual loading fixture for a sawing machine, comprising a hydraulic caliper, a hand-cranked slide, and a clamping structure. The hydraulic caliper secures the hand-cranked slide to the sawing machine without altering its main structure, thus avoiding the risks associated with adding a new structure. The hand-cranked slide includes a lower slide plate, an upper slide plate, and a hand-cranked screw. The screw moves the upper slide plate, which in turn moves the clamping structure and feeds the workpiece, resulting in high loading efficiency and accuracy. The clamping structure includes a mounting base and a three-jaw chuck mounted on the base. Manual adjustment of the three-jaw chuck allows for easy observation of the contact between the jaws and the workpiece, preventing damage. A support structure is installed on one side of the hydraulic caliper to support the hand-cranked slide and prevent it from tilting out of the caliper. With the above-mentioned design, the manual feeding fixture for the saw can be easily modified on the saw without affecting the main structure of the saw, thus avoiding various risks that may be brought about by adding a new structure. At the same time, the hand-cranked slide table drives the raw material feeding, and once fixed, it does not need to be moved until the raw material is used up, resulting in high production efficiency.

[0006] Furthermore, an abutment is provided between the hydraulic caliper and the lower slide plate. This abutment, positioned between the hydraulic caliper and the lower slide plate, ensures the connection strength between them while preventing the hydraulic caliper from damaging the lower slide plate.

[0007] Furthermore, the support structure includes a bearing housing and a support cylinder rotatably connected to the bearing housing; the lower sliding plate presses against the support cylinder.

[0008] Furthermore, the mounting base includes a connecting base that is fixedly connected to the upper sliding plate and a mounting plate that is fixedly connected to the chuck; a reinforcing plate is provided between the connecting base and the mounting plate.

[0009] Furthermore, bolt holes are provided on the upper slide plate, and connecting bolts are arranged in the bolt holes; a waist-shaped groove is provided on the connecting seat, and a washer is provided between the nut of the connecting bolt and the connecting seat.

[0010] Furthermore, a weight-reducing groove is provided on the reinforcing plate.

[0011] Furthermore, a foolproof structure is provided on the hand-cranked slide, the foolproof structure including a guide rod fixed on the hand-cranked screw, a track mounted on the lower slide, a slider that forms a sliding engagement with the track, and a retractable limiting post mounted on the track; multiple guide strips are arranged side by side on the slider, and a compression spring is provided between the limiting post and the track; the guide rod is configured to push the guide strips and the slider away from the lower slide when rotating with the hand-cranked screw, so as to expose the limiting post; the limiting post is configured to pop out of the track after being exposed to block the guide rod.

[0012] Furthermore, an mounting cylinder is installed on the track, and the compression spring is arranged inside the mounting cylinder and away from the track; the limiting post is connected to a pull rod with one end extending out of the mounting cylinder.

[0013] In summary, compared with the prior art, this utility model has the following beneficial effects: (1) The hydraulic caliper can fix the hand-cranked slide table on the saw, and the modification does not involve the main structure of the saw, thus avoiding various risks that may be brought about by the addition of new structures; the support structure is installed on one side of the hydraulic caliper, which can support the hand-cranked slide table and prevent the hand-cranked slide table from lifting out of the hydraulic caliper. (2) The hand-cranked slide includes a lower slide, an upper slide and a hand-cranked screw. The upper slide moves by the hand-cranked screw, which in turn drives the clamping structure and the workpiece to feed. The feeding efficiency is high and the feeding accuracy is accurate. Attached Figure Description

[0014] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of an embodiment of the manual feeding fixture for a sawing machine according to the present invention; Figure 2 This is a schematic diagram of an embodiment of the mounting base in the manual feeding fixture for a sawing machine according to this utility model; Figure 3 This is a schematic diagram of another embodiment of the manual feeding fixture for a sawing machine according to this utility model; Figure 4 This is a schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model; Figure 5 This is a cross-sectional schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model; Figure 6 This is another cross-sectional schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model.

[0015] List of reference numerals in the attached diagram: 1. Hydraulic caliper; 11. Guide rail; 12. Fixed jaw; 13. Moving jaw; 14. Support plate; 2. Hand-cranked slide; 21. Lower slide plate; 22. Upper slide plate; 23. Hand-cranked lead screw; 24. Abutment; 3. Support structure; 31. Bearing seat; 32. Support cylinder; 4. Mounting base; 41. Connecting base; 42. Mounting plate; 43. Reinforcing plate; 44. Weight reduction groove; 5. Foolproof structure; 51. Guide rod; 52. Rail; 53. Slider; 54. Limiting post; 55. Mounting cylinder; 56. Compression spring; 57. Guide bar; 58. Pull rod. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] To improve or solve the technical problem of low production efficiency of manual feeding in the prior art, this utility model provides a manual feeding fixture for a saw. The manual feeding fixture includes: a hydraulic caliper 1; a hand-cranked slide 2, including a lower slide plate 21 fixedly connected to the hydraulic caliper 1, an upper slide plate 22 slidably connected to the lower slide plate 21, and a hand-cranked screw 23 rotatably connected to the lower slide plate 21 and threadedly connected to the upper slide plate 22; a clamping structure including a mounting base 4 mounted on the upper slide plate 22 and a three-jaw chuck mounted on the mounting base 4; and a support structure 3 provided on the side of the hydraulic caliper 1 near the mounting base 4.

[0020] Figure 1 This is a schematic diagram of an embodiment of the manual feeding fixture for a sawing machine according to this utility model. Figure 1 As shown, in one or more embodiments, the manual loading fixture for a saw of this invention includes a hydraulic caliper 1, a hand-cranked slide 2, and a clamping structure. The hydraulic caliper 1 is adapted to be mounted on the saw.

[0021] See also Figure 1 In one or more embodiments, the hydraulic caliper 1 includes a guide rail 11, a fixed jaw 12 fixed on the guide rail 11, and a movable jaw 13 slidably mounted on the guide rail 11. The movable jaw 13 is connected to a hydraulic cylinder, which drives the movable jaw 13 to move, thereby clamping the hand-cranked slide 2. Further, a support plate 14 is provided on one side of the guide rail 11. The support plate 14 increases the contact area between the guide rail 11 and the hand-cranked slide 2, enhancing the connection stability between the hydraulic caliper 1 and the hand-cranked slide 2. A support structure 3 is provided on the other side of the guide rail 11, supporting the hand-cranked slide 2. Specifically, the support structure 3 includes a bearing seat 31 and a support cylinder 32 rotatably connected to the bearing seat 31. The bearing seat 31 is mounted on the worktable of the saw, and the distance between the two bearing seats 31 is greater than the width of the hand-cranked slide 2, meaning the length of the support cylinder 32 is also greater than the width of the hand-cranked slide 2. The bottom surface of the hand-cranked slide 2 abuts against the support cylinder 32. When the position of the hand-cranked slide 2 needs to be adjusted, the hydraulic clamp 1 can be loosened, allowing the support cylinder 32 to roll, facilitating the adjustment of the hand-cranked slide 2. After adjustment, it can be clamped back in place using the hydraulic clamp 1.

[0022] See also Figure 1 In one or more embodiments, the hand-cranked slide 2 is a dovetail slide. The hand-cranked slide 2 includes a lower slide plate 21 fixedly connected to the hydraulic caliper 1, an upper slide plate 22 slidably connected to the lower slide plate 21, and a hand-cranked screw 23 that drives the upper slide plate 22 to slide. Specifically, the lower slide plate 21 is clamped between the fixed jaw 12 and the movable jaw 13, thereby fixing the hand-cranked slide 2 to the hydraulic caliper 1. Further, a handwheel is provided at the end of the hand-cranked screw 23 for manual rotation of the screw. The hand-cranked screw 23 is a hand-cranked screw with a scale for precise control of the feed rate. Further, an abutment member 24 is provided between the lower slide plate 21 and the hydraulic caliper 1. The abutment member 24 is a metal part, which fixes the lower slide plate 21 to the hydraulic caliper 1 by pressing. Exemplarily, the abutment member 24 is a hollow round rod and a thick metal tube that is not easily deformed. It is understandable that the hand-cranked slide 2 has a large weight and will not easily tilt due to the weight of the workpiece when clamping it. The function of the hydraulic clamp 1 is to limit the hand-cranked slide 2 in the left and right directions to prevent the hand-cranked slide 2 from swaying or tilting, and to provide a certain clamping force to further prevent the hand-cranked slide 2 from tilting.

[0023] Figure 2 This is a schematic diagram of an embodiment of the mounting base in the manual feeding fixture for a sawing machine according to this utility model. Figure 1 and Figure 2 As shown, in one or more embodiments, the clamping structure includes a mounting base 4 mounted on the upper slide plate 22 and a three-jaw chuck mounted on the mounting base 4. The mounting base 4 and the upper slide plate 22 are fixedly connected by bolts. The mounting base 4 includes a connecting seat 41 connected to the upper slide plate 22 and a mounting plate 42 connected to the three-jaw chuck. Specifically, the connecting seat 41 is generally angle iron-shaped, with bolt holes on the upper slide plate 22, and connecting bolts arranged in the bolt holes. A slotted groove is formed on the connecting seat 41, through which the connecting bolt passes, and the nut of the connecting bolt abuts against the upper side of the connecting seat 41, thereby fixing the connecting seat 41 to the upper slide plate 22. Furthermore, a washer is provided between the nut of the connecting bolt and the connecting seat 41. Furthermore, the three-jaw chuck is a manual chuck, and the three-jaw chuck is mounted on the mounting plate 42 by bolts. A reinforcing plate 43 is provided on the connecting seat 41; the reinforcing plate 43 is a triangular plate, and two plates are arranged side by side. A weight-reducing groove 44 is provided on the reinforcing plate 43.

[0024] Figure 3 This is a schematic diagram of another embodiment of the manual feeding fixture for a sawing machine according to this utility model. Figure 4 This is a schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model; Figure 5 This is a cross-sectional schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model. Figure 3 , Figure 4 and Figure 5 As shown, in another embodiment, a foolproof structure 5 is provided on the lower slide plate 21. The foolproof structure 5 includes a guide rod 51 fixed to the hand crank screw 23, a track 52 mounted on the lower slide plate 21, a slider 53 forming a sliding engagement with the track 52, and a telescopically mounted limiting post 54 on the track 52. Specifically, the guide rod 51 is mounted on the hand crank screw 23 by a welding structure. Alternatively, a through hole is provided in the hand crank screw 23 near the lower slide plate 21, a nut is provided at one end of the guide rod 51, and the guide rod 51 is threaded. The guide rod 51 passes through the through hole and is fixed to the hand crank screw 23 by a nut. Further, the track 52 can be mounted on the lower slide plate 21 by a welding structure or by bolts. A mounting cylinder 55 is provided on the track 52, and the limiting post 54 is slidably arranged inside the mounting cylinder 55. A compression spring 56 is provided at the bottom of the mounting cylinder 55, with its two ends abutting against the limiting post 54 and the end plate of the mounting cylinder 55, respectively. Furthermore, a pull rod 58 is connected to the limiting post 54, with one end of the pull rod 58 connected to the limiting post 54 and the other end extending out of the mounting cylinder 55, thus facilitating the pulling of the limiting post 54 back into the mounting cylinder 55. Further, multiple guide bars 57 are provided on the slider 53 along the length of the hand crank screw 23, with the guide bars 57 extending downwards and inclined towards the downward sliding plate 21. Adjacent guide bars 57 form a sliding track that matches the guide rod 51.

[0025] Figure 6 This is another cross-sectional schematic diagram of the error-proof structure in the manual feeding fixture for a sawing machine according to this utility model. (See diagram below.) Figure 4 , Figure 5 and Figure 6 As shown, the number of rotations of the hand crank screw 23 is determined according to the feed length, and then a suitable slider 53 is selected; for example, if the hand crank screw 23 rotates three times, a slider 53 with two guide bars 57 is selected. When the hand crank screw 23 rotates, the guide rod 51 passes through the slider 53 and presses against the guide strip 57, causing the slider 53 to move a certain distance away from the lower slide plate 21. The next guide strip 57 then moves to the position of the previous guide strip 57. The hand crank screw 23 rotates twice, and the guide rod 51 passes through the slider 53 twice. The slider 53 is displaced until the limiting post 54 is exposed. The limiting post 54 is pushed out of the mounting cylinder 55 by the reaction force of the compression spring 56, and the pull rod 58 retracts into the mounting cylinder 55, indicating to the operator that the rotation is about to be completed. When the hand crank screw 23 passes through the slider 53 for the third time, the guide rod 51 abuts against the limiting post 54, and the hand crank screw 23 can no longer rotate, indicating to the operator that the rotation is complete and the sawing work can begin. Then, the pull rod 58 is pulled to pull the limiting post 54 back into the mounting cylinder 55, and the slider 53 is pushed towards the lower slider 53. The guide rod 51 is aligned with the outermost guide strip 57 to complete the reset.

[0026] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A manual feeding fixture for a saw, characterized in that, include: Hydraulic calipers (1); The hand-cranked slide (2) includes a lower slide plate (21) fixedly connected to the hydraulic caliper (1), an upper slide plate (22) slidably connected to the lower slide plate (21), and a hand-cranked screw (23) rotatably connected to the lower slide plate (21) and threadedly connected to the upper slide plate (22); The clamping structure includes a mounting base (4) mounted on the upper slide plate (22) and a three-jaw chuck mounted on the mounting base (4); a support structure (3) is provided on the side of the hydraulic caliper (1) near the mounting base (4).

2. The manual feeding fixture for a sawing machine according to claim 1, characterized in that, An abutment (24) is provided between the hydraulic caliper (1) and the lower slide plate (21).

3. The manual feeding fixture for a sawing machine according to claim 1, characterized in that, The support structure (3) includes a bearing seat (31) and a support cylinder (32) rotatably connected to the bearing seat (31); the lower slide plate (21) presses against the support cylinder (32).

4. The manual feeding fixture for a sawing machine according to claim 1, characterized in that, The mounting base (4) includes a connecting base (41) that is fixedly connected to the upper sliding plate (22) and a mounting plate (42) that is fixedly connected to the three-jaw chuck; a reinforcing plate (43) is provided on the connecting base (41).

5. The manual feeding fixture for a sawing machine according to claim 4, characterized in that, Bolt holes are provided on the upper slide plate (22), and connecting bolts are arranged in the bolt holes; a waist-shaped groove is provided on the connecting seat (41), and a washer is provided between the nut of the connecting bolt and the connecting seat (41).

6. The manual feeding fixture for a sawing machine according to claim 4, characterized in that, A weight-reducing groove (44) is provided on the reinforcing plate (43).

7. The manual feeding fixture for a sawing machine according to claim 1, characterized in that, A foolproof structure (5) is provided on the hand-cranked slide (2). The foolproof structure (5) includes a guide rod (51) fixed on the hand-cranked screw (23), a track (52) mounted on the lower slide plate (21), a slider (53) that forms a sliding engagement with the track (52), and a retractable limiting post (54) mounted on the track (52). Multiple guide strips (57) are arranged side by side on the slider (53). A compression spring (56) is provided between the limiting post (54) and the track (52). The guide rod (51) is configured to push the guide strips (57) and the slider (53) away from the lower slide plate (21) when rotating with the hand-cranked screw (23) to expose the limiting post (54). The limiting post (54) is configured to pop out of the track (52) after being exposed to block the guide rod (51).

8. The manual feeding fixture for a sawing machine according to claim 7, characterized in that, An mounting cylinder (55) is installed on the track (52), and a compression spring (56) is arranged inside the mounting cylinder (55) and away from the track (52); the limiting post (54) is connected to a pull rod (58) with one end extending out of the mounting cylinder (55).

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