A material positioning mechanism for practical training

Abstract

This invention relates to the field of mechanical training technology, specifically a material positioning mechanism for training, including a vise base. A fixed clamp is installed on one side of the upper surface of the vise base, and a movable clamp that cooperates with the fixed clamp is slidably installed on the upper surface of the vise base. Detachable support plates are installed on the two parallel sides of the fixed clamp and the two parallel sides of the movable clamp. Support plates are connected to support plates by limiting members. Multiple movable seats arranged vertically are provided on the upper side of the support plates. The multiple movable seats are connected to the support plates by connecting members. A first screw hole is opened on one side of the movable seat, and a long screw is threaded into the first screw hole. This invention has the following beneficial effects: through a multi-stage lateral auxiliary support structure, it solves the technical defects of traditional vises when clamping tall and long workpieces, such as only the bottom is stressed, the upper part is unrestrained, easy to tilt and shake, and poor stability.

Description

Technical Field

[0001] This invention relates to the field of mechanical training technology, specifically a material positioning mechanism for training. Background Technology

[0002] Bench vises are a common basic tool used in practical training and manual machining to stably clamp workpieces, and are widely used in various practical training scenarios. A conventional bench vise mainly consists of a fixed clamping base and a movable clamping base. The clamping height and external dimensions of both are fixed, and the overall clamping height is relatively low, which can only clamp and fix a small section of the bottom of the workpiece.

[0003] When clamping workpieces with large height dimensions, the fixed and movable clamps can only restrain the lower part of the workpiece, while the overall center of gravity of the workpiece is significantly higher than the clamping plane, leaving the upper part in a free, unrestrained state. In this situation, the workpiece relies solely on the bottom clamping force, lacking auxiliary restraint and lateral support in the middle or upper parts, resulting in severely insufficient overall stability. During practical training, the workpiece is continuously subjected to external forces such as cutting, grinding, and impact. Under the influence of lateral forces and vibrations, the relatively tall workpiece is prone to tilting, shifting, shaking, or even falling off. Once the workpiece tilts or falls, it not only affects the processing and training results but may also cause workpiece damage, tool damage, and even safety hazards. This structural limitation makes traditional bench vises unstable when clamping tall and long workpieces, failing to meet the requirements for safe and stable practical training. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a material positioning mechanism for practical training, so as to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a material positioning mechanism for practical training, comprising a vise base, a fixed clamping seat mounted on one side of the upper surface of the vise base, a movable clamping seat slidably mounted on the upper surface of the vise base to cooperate with the fixed clamping seat, an adjusting component for driving the movable clamping seat to move mounted on the side of the upper surface of the vise base away from the fixed clamping seat, detachable support plates mounted on two parallel sides of the fixed clamping seat and two parallel sides of the movable clamping seat, a support plate connected to the support plate by a limiting component, a plurality of vertically arranged movable seats provided on the upper side of the support plate, the plurality of movable seats being connected to the support plate by a connecting component, a first screw hole being provided on one side of the movable seat, a long screw being threaded into the first screw hole, one end of the long screw contacting the surface of the workpiece clamped between the fixed clamping seat and the movable clamping seat. By adding detachable support plates, support plates, and multi-layer movable seats to both sides of the fixed clamp and the movable clamp, and using long screws, the upper part of the workpiece can be laterally clamped at multiple heights. This makes up for the shortcomings of traditional bench vises that only clamp the bottom, improves the stability of tall and long workpieces in training and processing, and prevents tilting and shaking.

[0006] Specifically, both the movable clamp facing the fixed clamp and the fixed clamp facing the movable clamp are provided with protective plates. Each of the two protective plates has two countersunk holes on its opposite surfaces, into which screws are inserted. The two protective plates are connected to the movable clamp and the fixed clamp respectively by these screws. The removable protective plates on the clamping surfaces prevent direct hard contact between the workpiece and the fixed or movable clamp, thus avoiding clamping damage and scratches. Furthermore, the protective plates can be replaced individually, reducing vise wear and maintenance costs.

[0007] Specifically, two slots are provided on each of the two parallel sides of the fixed clamp and the two parallel sides of the movable clamp. Two small holes, which mate with countersunk holes, are provided on the side of the movable clamp facing the protective plate and the side of the fixed clamp facing the protective plate, respectively. These small holes communicate with the slots. One end of the support arm plate is inserted into the slot, and a second screw hole is provided at the end of the support arm plate within the slot. The screw passes through the channel formed by the countersunk hole and the small holes and is threaded into the second screw hole. This locking structure, which uses a single screw to simultaneously fix the protective plate and the support arm plate, eliminates the need for additional fasteners, reducing the number of fasteners required. If the thread is damaged, only the support arm plate needs to be replaced, without affecting the installation of the protective plate, making maintenance simpler.

[0008] Specifically, the limiting component includes a T-block. A T-block is installed on the lower part of one side of the support plate. A cross groove penetrating the support arm plate is formed on one side of the support arm plate. The end of the cross groove away from the second screw hole is open. The T-block is inserted into the cross groove. A threaded head is installed on the side of the T-block facing away from the support plate. The threaded head extends through the cross groove to the outside of the cross groove. A clamping nut is threaded onto the threaded head, and the clamping nut fits against the side of the support arm plate facing away from the support plate. Through the cooperation of the T-block and the cross groove, the front and rear positions of the support plate are infinitely adjustable, adapting to workpieces of different widths. The adjustment is flexible and the positioning is secure, meeting diverse training clamping needs.

[0009] Specifically, the connector includes a screw, and both ends of the movable seat are equipped with upper connecting ears. Two vertical holes are formed on the upper surface of each upper connecting ear, and a screw is inserted into each vertical hole. The lower end of the screw is connected to the upper end of the support plate. A first nut is provided on both the upper and lower sides of each vertical hole, and the first nut is threadedly connected to the screw. The movable seat adopts a connection and support structure formed by the screw and the first nut, allowing for free height adjustment. This ensures that the long screw is pressed against the side of the workpiece, resulting in uniform clamping force and a wider range of applications.

[0010] Specifically, one end of the screw is threaded to a straight-threaded cylinder, and two adjacent screws are connected through the straight-threaded cylinder. A lower connecting lug is installed at the upper end of the support plate. Two through holes aligned with the vertical hole are formed on the upper surface of the lower connecting lug. The lower end of the lowest screw passes through the through hole, and a second nut threaded to the screw is provided on both the upper and lower sides of the through hole. The use of the straight-threaded cylinder allows for rapid splicing and expansion of multiple screw sections, freely increasing the number of movable seats and support height, easily adapting to tall workpieces, offering strong expansion capabilities and quick assembly.

[0011] Specifically, one end of the long screw is threaded with a lock nut, which engages with the movable seat. The lock nut prevents the screw from loosening or stripping due to processing vibrations, ensuring stable tightening force and improving the safety and reliability of the training operation.

[0012] Specifically, the adjusting component includes an internally threaded portion. An internally threaded portion is installed on the side of the upper surface of the vise seat away from the fixed clamping seat. A stud is internally threaded onto the internally threaded portion. One end of the stud is rotatably connected to the movable clamping seat. A shaft hole is formed at the end of the stud away from the movable clamping seat, and a handle is inserted into the shaft hole. By using the stud and internally threaded portion to drive the movable clamping seat, the clamping force is stable, and the adjustment operation is effortless. It allows for fine adjustment of the workpiece from slightly loose to firmly tightened, making it suitable for teaching and training purposes.

[0013] Specifically, the lower surface of the vise base has a stepped groove that penetrates the vise base. The end of the stepped groove near the fixed clamp is closed, and the cross-section of the stepped groove is convex. A slider is installed on the lower surface of the movable clamp, and the slider is slidably installed in the stepped groove. Each of the two parallel sides of the slider has a strip-shaped groove, and a sliding strip is connected to the strip-shaped groove by screws. The sliding strip slides in contact with the downward-facing surface of the stepped groove. The movable clamp slides smoothly in the stepped groove via the slider and sliding strip, ensuring smooth movement without jamming or wobbling, guaranteeing clamping alignment, and extending the service life of the vise.

[0014] Specifically, positioning ears are installed at each of the four corners of the vise base, and fixing holes are provided on the upper surface of the positioning ears. The positioning ears and fixing holes at the four corners of the vise base allow for quick and secure installation, ensuring stable installation on the training table and preventing overall displacement, thereby further improving the safety of training operations.

[0015] The beneficial effects of this invention are: With the workpiece held in a vise at the bottom, a detachable and height-adjustable multi-layer movable seat and long screws provide lateral clamping and limiting from multiple height positions, such as the middle and top of the workpiece. This ensures that the workpiece is constrained in multiple directions during processing, resisting lateral forces and vibrations from cutting, grinding, and hammering. It prevents the workpiece from tilting, shifting, shaking, or even falling off, improving the clamping stability of tall and long workpieces. It can adapt to workpieces of different heights and widths, and is flexible in assembly and disassembly and convenient in adjustment. It not only prevents damage to the workpiece and tools but also eliminates safety hazards, meeting the needs of safe, stable, and reliable clamping of tall and long workpieces in mechanical training.

[0016] Insert one end of the support plate into the slot, aligning the countersunk hole, the small hole, and the second screw hole concentrically. Then, screw the screw through the countersunk hole and the small hole into the second screw hole. This allows the screw to simultaneously restrict the position of the guard plate and the support plate, eliminating the need for additional screws to restrict the relative position of the support plate. Furthermore, it eliminates the need to machine threaded holes for the screws on the fixed or movable clamps. If the second screw hole is damaged due to misalignment or other reasons, the support plate can be replaced separately, preventing situations where damaged threads prevent the guard plate from being installed smoothly. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a material positioning mechanism for practical training according to the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a perspective view of a material positioning mechanism for practical training according to the present invention. Figure 4 This is an assembly diagram of the stud, movable clamp, fixed clamp and vise base in a material positioning mechanism for practical training according to the present invention; Figure 5 This is an exploded structural diagram of the long screw, movable seat, screw rod, support plate, and support arm plate in a material positioning mechanism for practical training according to the present invention. Figure 6 This is an assembly diagram of the movable clamp, fixed clamp, slider, and vise seat in a material positioning mechanism for practical training according to the present invention. Figure 7 This is an assembly diagram of the slider, slide block, and movable clamp in a material positioning mechanism for practical training according to the present invention; In the diagram: 100, vise base; 101, positioning ear; 1011, fixing hole; 102, fixed clamp; 103, movable clamp; 1031, slider; 1032, slide bar; 104, stud; 1041, handle; 105, internal thread; 106, stepped groove; 107, slot; 108, small hole; 200, support plate; 201, cross groove; 202, second screw hole; 300, support plate; 301, T Block; 302, threaded head; 3021, clamping nut; 303, lower connecting lug; 3031, through hole; 400, guard plate; 401, screw; 402, countersunk hole; 500, movable seat; 501, long screw; 5011, lock nut; 502, upper connecting lug; 5021, vertical hole; 503, first threaded hole; 600, screw rod; 601, first nut; 602, straight threaded cylinder; 603, second nut. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1 to 7, the present invention provides a technical solution: a training material positioning mechanism, including a vise seat 100. Positioning ears 101 are installed at the four corners of the vise seat 100. A fixing hole 1011 is provided on the upper surface of the positioning ear 101, and the fixing hole 1011 is used to facilitate restricting the vise seat 100 on the training tabletop. A fixing clamp seat 102 is installed on one side of the upper surface of the vise seat 100. A movable clamp seat 103 that cooperates with the fixing clamp seat 102 is slidably installed on the upper surface of the vise seat 100. An internal thread portion 105 is installed on one side of the upper surface of the vise seat 100 away from the fixing clamp seat 102. A stud 104 is threadedly connected to the internal thread portion 105. One end of the stud 104 is rotatably connected to the movable clamp seat 103. A shaft hole is provided at the end of the stud 104 away from the movable clamp seat 103, and a handle 1041 is inserted into the shaft hole. By rotating the stud 104 with the handle 1041, the stud 104 drives the movable clamp seat 103 to move along the vise seat 100, so that the distance between the movable clamp seat 103 and the fixing clamp seat 102 changes.

[0020] A stepped groove 106 penetrating the vise seat 100 is provided on the lower surface of the vise seat 100. One end of the stepped groove 106 close to the fixing clamp seat 102 is closed. The cross-section of the stepped groove 106 is "convex" shaped. A slider 1031 is installed on the lower surface of the movable clamp seat 103, and the slider 1031 is slidably installed in the stepped groove 106. Strip-shaped grooves are provided on two parallel side surfaces of the slider 1031, and slide bars 1032 are connected to the strip-shaped grooves by screws. The slide bars 1032 are in sliding contact with the downward surface in the stepped groove 106. The movable clamp seat 103 relies on the combined structure of the slider 1031 and the slide bars 1032 to achieve guided sliding in the stepped groove 106 of the vise seat 100, with smooth operation without jamming, no lateral shaking, and no skew during clamping, and can always maintain the centering accuracy between the fixing clamp seat 102 and the movable clamp seat 103, extending the overall service life of the vise.

[0021] On the side of the movable clamp seat 103 facing the fixing clamp seat 102 and on the side of the fixing clamp seat 102 facing the movable clamp seat 103, guard plates 400 are provided. Two countersunk holes 402 are provided on the opposite surfaces of the two guard plates 400, and screws 401 are inserted into the countersunk holes 402. The two guard plates 400 are respectively connected to the movable clamp seat 103 and the fixing clamp seat 102 by the screws 401. By providing detachable guard plates 400 on the clamping surface, it is avoided that the workpiece directly contacts the fixing clamp seat 102 and the movable clamp seat 103 hard, and the guard plates 400 can be replaced separately, reducing the wear and maintenance costs of the vise.

[0022] Two slots 107 are provided on the two parallel sides of the fixed clamp 102 and the two parallel sides of the movable clamp 103. Two small holes 108 are provided on the side of the movable clamp 103 facing the guard plate 400 and the side of the fixed clamp 102 facing the guard plate 400, respectively. These small holes 108 mate with the countersunk holes 402 and communicate with the slots 107. One end of the support arm plate 200 is inserted into the slot 107. A second screw hole 202 is provided at the end of the support arm plate 200 within the slot 107. A screw 401 passes through the channel formed by the countersunk hole 402 and the small holes 108 and is threaded into the second screw hole 202. After inserting one end of the support arm plate 200 into the slot 107, ... The countersunk hole 402, the small hole 108 and the second screw hole 202 are concentrically aligned. Then, a single screw 401 is passed through the countersunk hole 402 and the small hole 108 in sequence and screwed into the second screw hole 202. This achieves the dual fixation of the guard plate 400 and the support arm plate 200 at the same time. This structure does not require additional fasteners, nor does it require machining special threaded holes on the fixed clamp 102 and the movable clamp 103. It simplifies the processing steps and reduces the number of parts. When the second screw hole 202 is damaged due to stripped or misaligned threads, it can be quickly repaired by simply replacing the support arm plate 200. It will not affect the normal installation and use of the guard plate 400, reducing maintenance difficulty and replacement costs, and improving the overall durability of the mechanism.

[0023] A T-shaped block 301 is installed on the lower part of one side of the support plate 300. A cross groove 201 penetrating the support plate 200 is opened on one side of the support arm plate 200. The end of the cross groove 201 away from the second screw hole 202 is open. The T-shaped block 301 is inserted into the cross groove 201. A threaded head 302 is installed on the side of the T-shaped block 301 facing away from the support plate 300. The threaded head 302 extends through the cross groove 201 to the outside of the cross groove 201. A clamping nut 3 is threaded onto the threaded head 302. 021, the clamping nut 3021 is in contact with the side of the support plate 200 facing away from the support plate 300. According to the width of the workpiece, adjust the relative position of the T-block 301 and the support plate 200 along the cross groove 201 until the support plate 300 moves to the required position. Then, tighten the clamping nut 3021 on the threaded head 302 to make the clamping nut 3021 fit tightly with the support plate 200, thereby restricting the position of the support plate 300 and finally achieving the goal of adjusting the position of the support plate 300 as needed.

[0024] The upper side of the support plate 300 is provided with multiple vertically arranged movable seats 500. Each movable seat 500 has an upper connecting lug 502 at both ends. Two vertical holes 5021 are formed on the upper surface of each upper connecting lug 502. A screw 600 is inserted into each vertical hole 5021, with its lower end connected to the upper end of the support plate 300. A first nut 601 is provided on both the upper and lower sides of each vertical hole 5021. The first nut 601 is threadedly connected to the screw 600. The first nut 601 and the upper connecting lug 502 cooperate to assemble the screw 600 with the movable seat 500. One end of each screw 600 is threadedly connected to a straight threaded cylinder 602. Adjacent screws 600 are connected through the straight threaded cylinder 602. The support plate 300... The upper end is equipped with a lower connecting lug 303. The upper surface of the lower connecting lug 303 has two through holes 3031 that are aligned with the vertical hole 5021. The lower end of the bottom screw 600 passes through the through holes 3031. The upper and lower sides of the through holes 3031 are provided with second nuts 603 that are threaded to the screw 600. The second nuts 603 and the lower connecting lug 303 cooperate with each other to realize the assembly of the screw 600 and the support plate 300. The use of the straight threaded cylinder 602 can realize the rapid splicing and height expansion of multiple screw sections 600. The number of movable seats 500 and the support stroke can be freely increased or decreased according to the actual height of the workpiece, which can flexibly adapt to the lateral support requirements of various ultra-high workpieces. The overall expandability is strong and the assembly and disassembly are simple and quick.

[0025] The movable seat 500 has a first screw hole 503 on one side, and a long screw 501 is internally threaded into the first screw hole 503. One end of the long screw 501 contacts the surface of the workpiece clamped between the fixed clamp 102 and the movable clamp 103. The other end of the long screw 501 is threaded with a lock nut 5011, which fits against the movable seat 500 to prevent the long screw 501 from moving freely. With the bottom of the workpiece clamped by the vise, the detachable and height-adjustable multi-layer movable seat 500 and the long screw 501 provide lateral clamping and limiting from multiple height positions such as the middle and top of the workpiece, so that the workpiece is subjected to multiple [conditions] during processing. Orientation constraint resists lateral forces and vibrations from cutting, grinding, and hammering, preventing workpiece tilting, shifting, shaking, or even falling off, and improving the stability of clamping tall and long workpieces. The support arm plate 200 and support plate 300 are both detachable, adjustable, and expandable, which can adapt to workpieces of different heights and widths. They are flexible to disassemble and assemble and convenient to adjust, preventing damage to workpieces and tools and eliminating safety hazards. They meet the needs of safe, stable, and reliable clamping of tall and long workpieces in mechanical training. Through a multi-level lateral auxiliary support structure, it solves the technical defects of traditional bench vises when clamping tall and long workpieces, which only bear force at the bottom, have no upper constraint, are prone to tilting and shaking, and have poor stability.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A material positioning mechanism for practical training, comprising a vise base (100), characterized in that: A fixed clamp (102) is mounted on one side of the upper surface of the vise base (100). A movable clamp (103) that cooperates with the fixed clamp (102) is slidably mounted on the upper surface of the vise base (100). An adjusting member for driving the movable clamp (103) to move is mounted on the side of the upper surface of the vise base (100) away from the fixed clamp (102). A detachable support plate (200) is mounted on both the two parallel sides of the fixed clamp (102) and the two parallel sides of the movable clamp (103). A support plate (300) is connected to the support plate (300) by a limiting member. The support plate (300) has multiple movable seats (500) arranged vertically on its upper side. The multiple movable seats (500) are connected to the support plate (300) by a connector. A first screw hole (503) is opened on one side of the movable seat (500). A long screw (501) is threaded into the first screw hole (503). One end of the long screw (501) is in contact with the surface of the workpiece clamped between the fixed clamp (102) and the movable clamp (103).

2. The material positioning mechanism for practical training according to claim 1, characterized in that: The movable clamp (103) facing the fixed clamp (102) and the fixed clamp (102) facing the movable clamp (103) are both provided with guard plates (400). Two countersunk holes (402) are opened on the opposite sides of the two guard plates (400). Screws (401) are inserted into the countersunk holes (402). The two guard plates (400) are connected to the movable clamp (103) and the fixed clamp (102) respectively by screws (401).

3. The material positioning mechanism for practical training according to claim 2, characterized in that: Two slots (107) are provided on the two parallel sides of the fixed clamp (102) and the two parallel sides of the movable clamp (103). Two small holes (108) that cooperate with the countersunk holes (402) are provided on the side of the movable clamp (103) facing the guard plate (400) and the side of the fixed clamp (102) facing the guard plate (400). The small holes (108) communicate with the slots (107). One end of the support plate (200) is inserted into the slot (107). The end of the support plate (200) in the slot (107) is provided with a second screw hole (202). The screw (401) passes through the channel formed by the countersunk hole (402) and the small hole (108) and is threaded into the second screw hole (202).

4. The material positioning mechanism for practical training according to claim 3, characterized in that: The limiting component includes a T-shaped block (301). The T-shaped block (301) is installed at the lower part of one side of the support plate (300). A cross groove (201) penetrating the support plate (200) is opened on one side of the support arm plate (200). The end of the cross groove (201) away from the second screw hole (202) is open. The T-shaped block (301) is inserted into the cross groove (201). A threaded head (302) is installed on the side of the T-shaped block (301) away from the support plate (300). The threaded head (302) extends through the cross groove (201) to the outside of the cross groove (201). A clamping nut (3021) is threaded onto the threaded head (302). The clamping nut (3021) is in contact with the side of the support arm plate (200) away from the support plate (300).

5. The material positioning mechanism for practical training according to claim 4, characterized in that: The connector includes a screw (600), and upper connecting ears (502) are installed at both ends of the movable seat (500). Two vertical holes (5021) are opened on the upper surface of the upper connecting ears (502). The screw (600) is inserted into the vertical holes (5021). The lower end of the screw (600) is connected to the upper end of the support plate (300). A first nut (601) is provided on the upper side and the lower side of the vertical holes (5021). The first nut (601) is threadedly connected to the screw (600).

6. The material positioning mechanism for practical training according to claim 5, characterized in that: One end of the screw (600) is threaded to a straight threaded cylinder (602), and two adjacent screws (600) are connected through the straight threaded cylinder (602). The upper end of the support plate (300) is equipped with a lower connecting lug (303). The upper surface of the lower connecting lug (303) has two through holes (3031) aligned with the vertical hole (5021). The lower end of the bottom screw (600) passes through the through hole (3031). The upper and lower sides of the through hole (3031) are provided with a second nut (603) that is threaded to the screw (600).

7. The material positioning mechanism for practical training according to claim 6, characterized in that: One end of the long screw (501) is threaded with a lock nut (5011), which is in contact with the movable seat (500).

8. The material positioning mechanism for practical training according to claim 1, characterized in that: The adjusting component includes an internal threaded part (105). The internal threaded part (105) is installed on the side of the upper surface of the vise seat (100) away from the fixed clamp (102). The internal threaded part (105) is internally threaded to a stud (104). One end of the stud (104) is rotatably connected to the movable clamp (103). The end of the stud (104) away from the movable clamp (103) is provided with a shaft hole, and a handle (1041) is inserted into the shaft hole.

9. A material positioning mechanism for practical training according to claim 8, characterized in that: The lower surface of the vise base (100) is provided with a stepped groove (106) that penetrates the vise base (100). The end of the stepped groove (106) near the fixed clamp (102) is closed. The cross-section of the stepped groove (106) is "convex". A slider (1031) is installed on the lower surface of the movable clamp (103). The slider (1031) is slidably installed in the stepped groove (106). A strip groove is provided on both parallel sides of the slider (1031). A slide bar (1032) is connected to the strip groove by a screw. The slide bar (1032) slides in contact with the downward-facing surface inside the stepped groove (106).

10. A material positioning mechanism for practical training according to claim 9, characterized in that: The vise base (100) is equipped with positioning ears (101) at each of the four corners, and the upper surface of the positioning ears (101) is provided with fixing holes (1011).

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