Clamp

Abstract

The utility model belongs to the field of clamps, and particularly relates to a clamp which comprises an operation table, moving assemblies are fixedly connected to the top face of the operation table in an axial symmetry mode, positioning assemblies are fixedly connected to the top faces of the moving assemblies in an axial symmetry mode, and the moving assemblies comprise sliding grooves fixedly connected to the two sides of the top face of the operation table in an axial symmetry mode. The two ends of the interior of the sliding groove are both slidably connected with moving blocks. Symmetrical adjustment of the distance between the positioning assemblies on the two sides is achieved through cooperation of a sliding groove of the moving assembly and a moving block, a four-connecting-rod transmission mechanism driven by a driving motor in the positioning assembly is combined to drive a sliding block to synchronously move on the surface of a rail, and therefore extrusion plates on the two sides and an anti-skid rubber pad clamp a toy only through point-shaped contact. Compared with large-size check block and clamping plate covering type clamping in a comparison file, the structure of the scheme effectively reduces shielding of a toy machining area, releases sufficient operation space for operations such as polishing and carving, and avoids interference between tools and clamps.

Description

Technical Field

[0001] This utility model relates to the field of clamps, specifically a type of clamp. Background Technology

[0002] In the toy manufacturing process, clamps are used to hold and fix the toys in place, making it easier for workers to process and grind toys of different shapes.

[0003] In the prior art, such as in publication number CN209140684U, a fixture for toy production is disclosed. It includes a production table, with support seats fixedly connected to the four corners of the bottom of the production table. Support blocks are provided on both the left and right sides of the top of the production table. The bottom of the left support block is fixedly connected to the top of the production table, and four evenly distributed connecting rods are fixedly connected to the right side of the left support block. A left stop block is fixedly connected to the right side of each connecting rod. A telescopic clamping device is fixedly connected to the left side of the left support block on the top of the production table. The placement plate provides support for the toy, preventing it from accidentally falling during clamping. The protective pad effectively protects the toy, preventing damage during clamping. The protective cover effectively protects the drive motor, extending its service life.

[0004] While the aforementioned patent achieves a positioning and clamping effect through multi-point compression positioning, using three large-volume plates—left and right blocks and an upper clamping plate—to compress and fix the toy results in occupying the worker's space for grinding the toy's edges. Furthermore, the blocks and clamping plate cover the toy's surface, making the grinding operation more difficult. In addition, the lack of a structure to monitor the clamping force makes it easy for the toy to break due to excessive pressure. Therefore, a clamping device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technology, the use of three large plates—left and right blocks and an upper clamping plate—to compress and fix the toy results in the occupation of the worker's grinding space for the toy. The blocks and clamping plates cover the surface of the toy, making the grinding operation more difficult. In addition, the lack of a structure to monitor the clamping force makes it easy for the toy to break due to excessive pressure. This utility model proposes a clamp.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The clamp of this utility model includes an operating table, a moving component is fixedly connected to the top surface of the operating table in an axisymmetric manner, a positioning component is fixedly connected to the top surface of the moving component in an axisymmetric manner, an equipment box is provided on the surface of the operating table, and a control board is sleeved inside the equipment box.

[0007] The moving component includes a slide groove that is fixedly connected to both sides of the top surface of the operating table in an axisymmetric manner, and a moving block is slidably connected to both ends inside the slide groove.

[0008] The positioning component includes a track fixedly connected to the top surface of the movable block. A drive motor is fixedly connected to the back of the track. A swing rod is fixedly connected to one end of the drive motor through the track. A pull rod is rotatably connected to both ends of the swing rod. A connecting rod is rotatably connected to one end of each pull rod. A slider is fixedly connected to the top of each connecting rod. The two sliders are axially symmetrically slidably connected to the track surface. A sleeve hole is opened on the side of the slider. A pressure sensor is sleeved inside the sleeve hole. An extrusion plate is fixedly connected to the side of the pressure sensor. An anti-slip rubber pad is fixedly connected to the side of the extrusion plate.

[0009] Preferably, the sliding groove of the moving component is fixedly connected to both sides of the top surface of the operating table in an axisymmetric manner, and the two ends inside the sliding groove are respectively slidably connected to a moving block that can move along the axial direction of the sliding groove.

[0010] Preferably, the drive motor of the positioning component is fixedly connected to the back of the track, the output end of the drive motor passes through the back of the track and is fixedly connected to the swing rod coaxially, and the slider forms a four-bar linkage with the pull rod through the connecting rod.

[0011] Preferably, the pressure sensor is detachably connected to the slider through a sleeve hole, the output end of the pressure sensor is electrically connected to the control board, and the contact surface of the anti-slip rubber pad is provided with uniformly distributed raised textures.

[0012] Preferably, the device box is located in the middle of the top surface of the operating table, the control board is electrically connected to the drive motor and the pressure sensor respectively, and the control board has a built-in pressure threshold control module.

[0013] Preferably, the drive motor has a built-in brake structure, and the thickness of the anti-slip rubber pad is gradually distributed along the extrusion direction.

[0014] The advantages of this utility model are:

[0015] 1. This utility model achieves symmetrical adjustment of the distance between the positioning components on both sides by using the sliding groove of the moving component in cooperation with the moving block. Combined with the four-bar transmission mechanism driven by the drive motor in the positioning component, the slider moves synchronously on the track surface, so that the extrusion plates and anti-slip rubber pads on both sides clamp the toy only through point contact. Compared with the large-volume block and clamping plate covering clamping in the prior art, the structure of this solution effectively reduces the obstruction of the toy processing area, freeing up sufficient operating space for grinding, carving and other operations, and avoiding interference between tools and fixtures.

[0016] 2. This utility model uses a detachable connection design between the pressure sensor and the slider sleeve hole to monitor the clamping force applied by the extrusion plate in real time and transmit the pressure signal to the control board. When the pressure value exceeds the preset threshold, the control board controls the drive motor to stop running and triggers the brake structure to lock the swing rod. At the same time, the gradient anti-slip rubber pad optimizes the pressure transmission through thickness distribution. Compared with the spring buffer device in the comparison document that does not have clamping force feedback, the structure of this solution realizes dynamic monitoring and adaptive adjustment of clamping force, avoiding damage to toys due to overpressure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the mobile component of this utility model;

[0021] Figure 4 This is a schematic diagram of the device box and control board structure of this utility model.

[0022] In the diagram: 1. Control panel; 2. Moving component; 21. Slide rail; 22. Moving block; 3. Positioning component; 31. Track; 32. Drive motor; 33. Swing rod; 34. Pull rod; 35. Connecting rod; 36. Slider; 37. Pressure sensor; 38. Extrusion plate; 39. Anti-slip rubber pad; 4. Equipment box; 5. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1-4As shown, a fixture includes an operating table 1, a movable component 2 is fixedly connected to the top surface of the operating table 1 in an axisymmetric manner, a positioning component 3 is fixedly connected to the top surface of the movable component 2 in an axisymmetric manner, an equipment box 4 is provided on the surface of the operating table 1, and a control board 5 is sleeved inside the equipment box 4.

[0025] The movable component 2 includes a slide groove 21 that is fixedly connected to both sides of the top surface of the operating table 1 in an axisymmetric manner, and a movable block 22 is slidably connected to both ends inside the slide groove 21.

[0026] The positioning component 3 includes a track 31 fixedly connected to the top surface of the movable block 22. A drive motor 32 is fixedly connected to the back of the track 31. The output end of the drive motor 32 passes through one end of the track 31 and is fixedly connected to a swing rod 33. Both ends of the swing rod 33 are rotatably connected to a pull rod 34. One end of each pull rod 34 is rotatably connected to a connecting rod 35. The top of each connecting rod 35 is fixedly connected to a slider 36. The two sliders 36 are axially symmetrically slidably connected to the surface of the track 31.

[0027] During operation, movable components 2 are symmetrically installed on both sides of the top surface of the operating table 1 of the fixture. The slide grooves 21 of the movable components 2 are fixed to the two sides of the top surface of the operating table 1 by bolts. The two ends of the slide grooves 21 are slidably connected to the movable blocks 22. The operator manually adjusts the two movable blocks 22 on both sides to move axially along the slide grooves 21 according to the size of the toy, which drives the positioning component 3 fixed on the top surface of the movable blocks 22 to move as a whole, so that the distance between the two side tracks 31 is adapted to the width of the toy. The drive motor 32 of the positioning component 3 is fixed to the back end of the track 31. After the drive motor 32 is powered on, it drives the swing rod 33 at the output end to rotate. The two ends of the swing rod 33 pull the connecting rod 35 through the hinged pull rod 34. The top of the connecting rod 35 is fixedly connected to the slider 36 to form a four-bar linkage mechanism, which forces the two sliders 36 to slide synchronously towards each other along the surface of the track 31, causing the extrusion plate 38 and the anti-slip rubber pad 39 on the side of the slider 36 to make point contact with the side wall of the toy, realizing local precise clamping, avoiding large-volume baffles from blocking the processing area, and freeing up operating space.

[0028] Furthermore, a sleeve hole is provided on the side of the slider 36, and a pressure sensor 37 is sleeved inside the sleeve hole. An extrusion plate 38 is fixedly connected to the side of the pressure sensor 37, and an anti-slip rubber pad 39 is fixedly connected to the side of the extrusion plate 38.

[0029] During operation, a pressure sensor 37, model Honeywell FSS1500NST, is embedded in the sleeve hole on the side of the slider 36. The pressure sensor 37 is connected to the control board 5, model Arduino Due, via wires. When the extrusion plate 38 contacts the toy, the gradient thickness design of the anti-slip rubber pad 39 evenly transmits the contact pressure to the pressure sensor 37. The pressure signal is transmitted to the control board 5 inside the device box 4 in real time. The control board 5 presets a pressure threshold. When the detected pressure value exceeds the threshold, it immediately sends a stop command to the drive motor 32 and triggers its built-in brake structure to lock the swing rod 33, preventing the clamping force from continuously increasing and causing the toy to break. At the same time, the raised texture on the surface of the anti-slip rubber pad 39 increases the coefficient of friction. Combined with the dynamic adjustment function of the pressure sensor 37, a balance is achieved between clamping stability and overpressure prevention.

[0030] Furthermore, the equipment box 4 is located in the middle of the top surface of the operating table 1, and the control board 5 is electrically connected to the drive motor 32 and the pressure sensor 37 respectively. The control board 5 has a built-in pressure threshold control module.

[0031] During operation, the pressure threshold control module built into the control board 5 is preset with a safe pressure range corresponding to the toy material. When the pressure sensor 37 detects that the clamping force of the extrusion plate 38 exceeds the threshold, the control board 5 immediately sends a stop signal to the drive motor 32 and triggers an alarm. At the same time, the drive motor 32 automatically releases some pressure to the safe range through a reverse command. Through the closed-loop control of the control board 5, pressure sensor 37, and drive motor 32, the clamping force is dynamically adjusted in real time, avoiding overpressure damage caused by human error. The centralized wiring design of the equipment box 4 reduces the interference of exposed cables with the processing area, and the intelligent response of the pressure threshold module significantly improves clamping safety and automation level.

[0032] Furthermore, the drive motor 32 has a built-in brake structure, and the thickness of the anti-slip rubber pad 39 is gradually distributed along the extrusion direction.

[0033] During operation, the brake structure built into the drive motor 32 employs electromagnetic braking technology. When the drive motor 32 is powered off or receives a stop command from the control board 5, the friction pads of the brake structure instantly lock the motor shaft, fixing the rotation angle of the swing arm 33. The thickness of the anti-slip rubber pad 39 decreases linearly from the center to the edge along the compression direction, with the thickest area in the center to enhance the cushioning of the initial contact, and the gradually thinning design at the edges to reduce stress concentration during pressure transmission. The brake structure ensures that the slider 36 remains locked in position even after the drive motor 32 is powered off during clamping, preventing the toy from loosening due to external vibration or gravity shift. The gradual thickness of the anti-slip rubber pad 39 optimizes pressure distribution; the thicker central area absorbs impact energy, while the thinner edge area increases local pressure. Combined with the raised texture, this further increases anti-slip properties, protecting the toy's surface while enhancing clamping stability.

[0034] Working principle: The moving components 2 on both sides of the top surface of the operating table 1 achieve overall spacing adjustment through the sliding cooperation of the sliding groove 21 and the moving block 22. After the operator manually pushes the moving blocks 22 on both sides to the target position according to the size of the toy, the drive motor 32 of the positioning component 3 starts, driving the swing rod 33 at the output end to rotate, driving the pull rod 34 and the connecting rod 35 to form a four-bar linkage mechanism, forcing the two sliders 36 to slide synchronously towards each other along the surface of the track 31. The pressure sensor 37 on the side of the slider 36 is connected to the extrusion plate 38 through the sleeve hole. The extrusion plate 38 drives the anti-slip rubber pad 39 to contact the side wall of the toy. The pressure sensor 37 monitors the clamping force in real time and transmits the signal to the control board 5 in the equipment box 4. When the pressure exceeds the preset threshold, the control board 5 triggers the built-in brake structure of the drive motor 32 to lock the swing rod 33 and stop the drive. At the same time, the gradual thickness and raised texture of the anti-slip rubber pad 39 optimize the pressure distribution, ensuring stable clamping and avoiding damage to the toy.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamp, characterized in that: It includes an operating table (1), a moving component (2) is fixedly connected to the top surface of the operating table (1) in an axisymmetric manner, a positioning component (3) is fixedly connected to the top surface of the moving component (2) in an axisymmetric manner, an equipment box (4) is provided on the surface of the operating table (1), and a control board (5) is sleeved inside the equipment box (4). The moving component (2) includes a slide groove (21) fixedly connected to both sides of the top surface of the operating table (1) in an axisymmetric manner, and a moving block (22) is slidably connected to both ends inside the slide groove (21); The positioning component (3) includes a track (31) fixedly connected to the top surface of the moving block (22). A drive motor (32) is fixedly connected to the back of the track (31). A swing rod (33) is fixedly connected to the output end of the drive motor (32) through one end of the track (31). A pull rod (34) is rotatably connected to both ends of the swing rod (33). A connecting rod (35) is rotatably connected to one end of the pull rod (34). A slider (36) is fixedly connected to the top of the connecting rod (35). The two sliders (36) are axially symmetrically connected to the surface of the track (31). A sleeve hole is opened on the side of the slider (36). A pressure sensor (37) is sleeved inside the sleeve hole. An extrusion plate (38) is fixedly connected to the side of the pressure sensor (37). An anti-slip rubber pad (39) is fixedly connected to the side of the extrusion plate (38).

2. The clamp according to claim 1, characterized in that: The sliding groove (21) of the moving component (2) is fixedly connected to both sides of the top surface of the operating table (1) in an axisymmetric manner. The two ends of the sliding groove (21) are respectively slidably connected to the moving blocks (22) that can move along the axial direction of the sliding groove (21).

3. A clamp according to claim 1, characterized in that: The drive motor (32) of the positioning component (3) is fixedly connected to the back of the track (31). The output end of the drive motor (32) passes through the back of the track (31) and is fixedly connected to the swing rod (33) on the same axis. The slider (36) forms a four-bar linkage with the pull rod (34) through the connecting rod (35).

4. A clamp according to claim 1, characterized in that: The pressure sensor (37) is detachably connected to the slider (36) through a sleeve hole. The output end of the pressure sensor (37) is electrically connected to the control board (5). The contact surface of the anti-slip rubber pad (39) is provided with uniformly distributed raised textures.

5. A clamp according to claim 1, characterized in that: The device box (4) is located in the middle of the top surface of the operating table (1). The control board (5) is electrically connected to the drive motor (32) and the pressure sensor (37) respectively. The control board (5) has a built-in pressure threshold control module.

6. A clamp according to claim 1, characterized in that: The drive motor (32) has a built-in brake structure, and the thickness of the anti-slip rubber pad (39) is gradually distributed along the extrusion direction.

Images