Spanner machining positioning device
By designing the transmission mechanism and clamping components, the problem of unstable clamping of irregularly shaped wrenches in existing technologies has been solved, achieving adaptive clamping and improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHISHI HUAYI HARDWARE CRAFT CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-26
Smart Images

Figure CN224407331U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wrench processing technology, specifically a wrench processing positioning device. Background Technology
[0002] A wrench is a hand tool that typically has a long handle for gripping and a specially designed head (such as an open-end, box, or socket) specifically designed for tightening or loosening angular fasteners such as bolts and nuts. It utilizes the length of the handle to provide leverage (lever arm), converting the force applied by the hand into torque that rotates the fastener.
[0003] In existing wrench processing positioning devices, the wrench workpiece is usually clamped and held by left and right clamping. However, when dealing with wrenches of irregular shape or special size, ordinary clamping components are difficult to stably fix the workpiece, requiring the replacement of different clamping mechanisms each time, which greatly affects production efficiency. If forced to use this method, it will lead to inconsistent clamping force at the left and right ends, causing workpiece deformation or processing errors. Utility Model Content
[0004] The purpose of this utility model is to provide a wrench processing positioning device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wrench processing positioning device, comprising a housing, a support base, a transmission mechanism, and clamping components. A detachable support base is installed at the bottom of the housing. The transmission mechanism is disposed on the housing, and two sets of clamping components are installed on the transmission mechanism. The two sets of clamping components are respectively disposed at the left and right ends of the top of the housing. The transmission mechanism includes a sliding column, a first sliding block, a cylinder, a first transmission component, and a second transmission component. The sliding column is installed on the housing, and the first sliding block is slidably connected to the sliding column. The first transmission component and the second transmission component are respectively installed at both ends of the first sliding block. The lower ends of the first transmission component and the second transmission component are respectively connected to the two ends of the cylinder installed at the bottom of the housing.
[0006] Preferably, the sliding post is T-shaped and is embedded in a groove at the top of the housing.
[0007] Preferably, the first transmission component and the second transmission component are arranged symmetrically from left to right and have the same structure.
[0008] Preferably, the first transmission assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a connecting frame, a sixth connecting rod, and a connecting block. The right end of the first sliding block is connected to the first connecting rod. The first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to one end of the third connecting rod. The other end of the third connecting rod is integrally connected to the fourth connecting rod and the fifth connecting rod, and the other end of the fourth connecting rod is connected to the pushing end of the cylinder. The middle part of the fifth connecting rod is rotatably connected to the connecting frame installed in the middle of the side of the housing. The other end of the fifth connecting rod is rotatably connected to one end of the sixth connecting rod. The other end of the sixth connecting rod is rotatably connected to one end of the connecting block. The connecting block is connected to the clamping assembly at the right end of the housing.
[0009] Preferably, the clamping assembly includes a slide rail, a sliding plate, a second sliding block, a fixed plate, a third sliding block, a fourth sliding block, a slide groove, a connecting column, a support plate, a clamping block, and a protective shell. The upper end of the housing is provided with slide rails on both sides. A sliding plate is slidably connected within the slide rails, and the outer side of the sliding plate is connected to the connecting block. A second sliding block is provided on the inner side of the sliding plate. A fixed plate is provided on the left side of the second sliding block. The front and rear sides of the fixed plate are respectively connected to the third and fourth sliding blocks. A slide groove is provided in the middle of each of the second, third, and fourth sliding blocks. A connecting column is slidably connected within each set of slide grooves, and all three sets of connecting columns are mounted on the sliding plate. A support plate is provided on the outer side of each of the third and fourth sliding blocks, and the bottom of the support plate is connected to the sliding plate. A clamping block is provided on the left side of each of the third and fourth sliding blocks. A protective shell is provided on the sliding plate, and the fixed plate and the protective shell are fixedly connected by bolts.
[0010] Preferably, the clamping block is provided with a rubber pad.
[0011] Preferably, the second sliding block has ramp angles at both ends, and the right ends of the third and fourth sliding blocks also have ramp angles, and the right ends of the third and fourth sliding blocks match the ramp angles at both ends of the second sliding block.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model is equipped with a transmission mechanism, which drives the symmetrical first transmission component and the second transmission component simultaneously through a cylinder, amplifying the stroke of the cylinder and synchronously converting it into a large-stroke horizontal motion. The cooperation between the sliding column and the first slider can ensure the stability and synchronization of the power output.
[0014] This utility model is equipped with a clamping assembly. The first and second transmission assemblies push two sets of sliding plates, which simultaneously cause the third and fourth sliding blocks on the sliding plates to move horizontally. When one of the sliding blocks first hits the wrench workpiece, it will push the second sliding block to slide horizontally through the ramp under the reaction force of the workpiece, forcibly driving the other sliding block that is not in contact with the workpiece to move towards the workpiece, until the four sets of sliding blocks are completely in contact with the complex surface of the irregular wrench. It can effectively clamp irregular, curved, or inconsistent-sized wrenches and prevent them from deviating and affecting processing efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the positioning device of this utility model;
[0016] Figure 2 This is a schematic diagram of the transmission mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure between the transmission mechanism and the clamping assembly of this utility model;
[0018] Figure 4 This is a schematic diagram of the clamping assembly of this utility model;
[0019] Figure 5 This is a top view of the clamping assembly of this utility model;
[0020] Figure 6 This is a schematic diagram of the left-side clamping assembly of this utility model.
[0021] In the diagram: Box body-1, support base-2, transmission mechanism-3, sliding column-31, first sliding block-32, cylinder-33, first transmission assembly-34, first connecting rod-341, second connecting rod-342, third connecting rod-343, fourth connecting rod-344, fifth connecting rod-345, connecting frame-346, sixth connecting rod-347, connecting block-348, second transmission assembly-35, clamping assembly-4, slide rail-41, sliding plate-42, second sliding block-43, fixing plate-44, third sliding block-45, fourth sliding block-46, slide groove-47, connecting column-48, support plate-49, clamping block-410, rubber pad-4101, protective shell-411. Detailed Implementation
[0022] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0023] Please see Figure 1 , Figure 2This utility model provides a wrench processing positioning device, including a housing 1, a support base 2, a transmission mechanism 3, and clamping components 4. A detachable support base 2 is installed at the bottom of the housing 1. The transmission mechanism 3 is mounted on the housing 1, and two sets of clamping components 4 are installed on the transmission mechanism 3. The two sets of clamping components 4 are respectively located at the left and right ends of the top of the housing 1. The transmission mechanism 3 includes a sliding column 31, a first sliding block 32, a cylinder 33, a first transmission component 34, and a second transmission component 35. The sliding column 31 is mounted on the housing 1, and the sliding column 31... The sliding column 31 is T-shaped and embedded in the groove at the top of the housing 1 to prevent it from shaking or shifting when subjected to force. A first sliding block 32 is slidably connected to the sliding column 31. A first transmission component 34 and a second transmission component 35 are respectively installed at both ends of the first sliding block 32 to ensure that the two transmission components can move vertically along the sliding column 31 synchronously. The lower ends of the first transmission component 34 and the second transmission component 35 are respectively connected to the two ends of the cylinder 33 installed at the bottom of the housing 1 to drive the two transmission components to move.
[0024] The first transmission component 34 and the second transmission component 35 are arranged symmetrically on the left and right sides and have the same structure. They can move synchronously in opposite directions, achieve force balance, and achieve the effect of space optimization.
[0025] Please see Figure 2 In this utility model, the first transmission assembly 34 includes a first connecting rod 341, a second connecting rod 342, a third connecting rod 343, a fourth connecting rod 344, a fifth connecting rod 345, a connecting frame 346, a sixth connecting rod 347, and a connecting block 348. The first connecting rod 341 is welded to the right end of the first sliding block 32 to directly drive the first slider 32 to move vertically, so that the first transmission assembly 34 and the second transmission assembly 35 move synchronously. The first connecting rod 341 is rotatably connected to one end of the second connecting rod 342, and the other end of the second connecting rod 342 is rotatably connected to one end of the third connecting rod 343. The other end of the third connecting rod 343 is integrally connected to the first connecting rod 346. The fourth link 344 and the fifth link 345 are connected, and the other end of the fourth link 344 is bolted to the pushing end of the cylinder 33, so that the cylinder 33 can drive multiple links to move synchronously at the same time. The middle part of the fifth link 345 is rotatably connected to the connecting frame 346 bolted to the middle of the side of the housing 1 to prevent the fifth link 345 from deviating during movement. The other end of the fifth link 345 is rotatably connected to one end of the sixth link 347. The other end of the sixth link 347 is rotatably connected to one end of the connecting block 348. The connecting block 348 is connected to the clamping assembly 4 at the right end of the housing 1, so as to drive the clamping assembly 4 to clamp the wrench workpiece through the cylinder 33.
[0026] Please see Figures 3-6The clamping assembly 4 of this utility model includes a slide rail 41, a sliding plate 42, a second sliding block 43, a fixed plate 44, a third sliding block 45, a fourth sliding block 46, a slide groove 47, a connecting column 48, a support plate 49, a clamping block 410, and a protective shell 411. Slide rails 41 are provided on both sides of the upper end of the housing 1. A sliding plate 42 is slidably connected inside the slide rail 41, and the outer side of the sliding plate 42 is bolted to the connecting block 348 to push the sliding plate 42 to slide, causing the third sliding block 45 and the fourth sliding block 46 to slide. A second sliding block 43 is provided inside the sliding plate 42, and a fixed plate 44 is provided on the left side of the second sliding block 43 to restrict the movement direction of the third sliding block 45 and the fourth sliding block 46. The third sliding block 45 and the fourth sliding block 46 are respectively connected to the front and rear sides of the fixed plate 44 to clamp the wrench workpiece. The middle portions of the second sliding block 43, the third sliding block 45, and the fourth sliding block 46 are all... The slide is provided with a sliding groove 47, and each set of sliding grooves 47 is slidably connected with a connecting column 48. All three sets of connecting columns 48 are installed on the sliding plate 42, which can ensure that the second sliding block 43, the third sliding block 45 and the fourth sliding block 46 slide on the sliding plate 42. The outer side of the third sliding block 45 and the fourth sliding block 46 are provided with a support plate 49, and the bottom of the support plate 49 is connected to the sliding plate 42 to restrict the movement of the third sliding block 45 and the fourth sliding block 46 and prevent the sliding block from deviating and failing to clamp the workpiece. The left side of the third sliding block 45 and the fourth sliding block 46 are provided with a clamping block 410, and the clamping block 410 is provided with a rubber pad 4101, which can effectively prevent the sliding block from directly impacting the workpiece. The sliding plate 42 is provided with a protective shell 411, and the fixing plate 44 is fixedly connected to the protective shell 411 by bolts, which can protect the internal slider from being directly affected by external sand and dust and increase its stability.
[0027] The second sliding block 43 has ramp angles at both ends, and the right ends of the third sliding block 45 and the fourth sliding block 46 also have ramp angles. The right ends of the third sliding block 45 and the fourth sliding block 46 match the ramp angles at both ends of the second sliding block 43. This allows the second sliding block 43 to be pushed to force the other sliding block to slide and contact the surface of the workpiece when one of the third sliding block 45 and the fourth sliding block 46 first contacts the workpiece surface, thus forming an adaptive clamping mechanism.
[0028] Working principle:
[0029] First, the operator places the wrench workpiece to be processed on the platform at the top of the housing 1 and starts the cylinder 33. The cylinder 33 will push the two sets of fourth connecting rods 344 to move horizontally outward. The fourth connecting rods 344 will simultaneously drive the third connecting rod 343 to move, and drive the fifth connecting rod 345 to rotate in the connecting frame 346. The movement of the fifth connecting rod 345 will drive the sixth connecting rod 347 to move horizontally towards the workpiece. The sixth connecting rod 347 will push the connecting block 348 to move. When the cylinder 33 drives the fourth connecting rod 36 to move, it will drive the second connecting rod 342 to move horizontally downward, and at the same time drive the first connecting rod 341 and the first sliding block 32 to move horizontally downward, ensuring the synchronization and stability of the mechanism and generating the same clamping force.
[0030] Secondly, the horizontal movement of the connecting block 348 driven by the cylinder 33 will simultaneously push the sliding plate 42 to slide towards each other. The sliding of the sliding plate 42 will simultaneously drive the second sliding block 43, the third sliding block 45, and the fourth sliding block 46 to move, so that the two sets of third sliding blocks 45 and fourth sliding blocks 46 can clamp the workpiece. When facing a wrench workpiece with a complex curved surface, when one of the third sliding blocks 45 and the fourth sliding block 46 first contacts the wrench, the reaction force of the workpiece will push the sliding block to slide. Through the inclined surface set on the sliding block, the second sliding block 43 will be pushed to slide. The second sliding block 43 will force the other sliding block that has not contacted the workpiece to slide until all the sliding blocks are completely in close contact with the surface of the wrench workpiece, forming an adaptive clamping force field. This can effectively clamp wrenches with irregular shapes, complex curved surfaces, or inconsistent sizes, preventing them from deviating and affecting processing efficiency. After all four sets of sliding blocks have completely clamped the workpiece, the positioning of the wrench processing is completed.
[0031] 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, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wrench processing positioning device, comprising a housing (1) and a support base (2), wherein a detachable support base (2) is installed at the bottom of the housing (1). characterized in that It also includes a transmission mechanism (3) and a clamping assembly (4). The transmission mechanism (3) is set on the housing (1). Two sets of clamping assemblies (4) are installed on the transmission mechanism (3). The two sets of clamping assemblies (4) are respectively set on the top left and right ends of the housing (1). The transmission mechanism (3) includes a sliding column (31), a first sliding block (32), a cylinder (33), a first transmission assembly (34), and a second transmission assembly (35). The sliding column (31) is installed on the housing (1). The first sliding block (32) is slidably connected to the sliding column (31). The first transmission assembly (34) and the second transmission assembly (35) are respectively installed on both ends of the first sliding block (32). The lower ends of the first transmission assembly (34) and the second transmission assembly (35) are respectively connected to both ends of the cylinder (33) installed at the bottom of the housing (1).
2. The wrench processing positioning device according to claim 1, characterized in that: The sliding column (31) is T-shaped and is embedded in the groove at the top of the box (1).
3. The wrench processing positioning device according to claim 1, characterized in that: The first transmission component (34) and the second transmission component (35) are arranged symmetrically on the left and right sides and have the same structure.
4. The wrench processing positioning device according to claim 3, characterized in that: The first transmission assembly (34) includes a first connecting rod (341), a second connecting rod (342), a third connecting rod (343), a fourth connecting rod (344), a fifth connecting rod (345), a connecting frame (346), a sixth connecting rod (347), and a connecting block (348). The right end of the first sliding block (32) is connected to the first connecting rod (341). The first connecting rod (341) is rotatably connected to one end of the second connecting rod (342), and the other end of the second connecting rod (342) is rotatably connected to one end of the third connecting rod (343). The third connecting rod (343) The other end is integrally connected to the fourth link (344) and the fifth link (345), and the other end of the fourth link (344) is connected to the pushing end of the cylinder (33). The middle part of the fifth link (345) is rotatably connected to the connecting frame (346) installed in the middle of the side of the box (1). The other end of the fifth link (345) is rotatably connected to one end of the sixth link (347). The other end of the sixth link (347) is rotatably connected to one end of the connecting block (348). The connecting block (348) is connected to the clamping assembly (4) on the right end of the box (1).
5. The wrench processing positioning device according to claim 1, characterized in that: The clamping assembly (4) includes a slide rail (41), a sliding plate (42), a second sliding block (43), a fixed plate (44), a third sliding block (45), a fourth sliding block (46), a slide groove (47), a connecting column (48), a support plate (49), a clamping block (410), and a protective shell (411). The upper end of the housing (1) is provided with slide rails (41) on both sides. The slide rail (41) is slidably connected to the sliding plate (42), and the outer side of the sliding plate (42) is connected to the connecting block (348). The inner side of the sliding plate (42) is provided with a second sliding block (43). The left side of the second sliding block (43) is provided with a fixed plate (44). The front and rear sides of the fixed plate (44) are respectively connected with the third sliding block (45). The second sliding block (43), the third sliding block (45) and the fourth sliding block (46) are provided with a sliding groove (47) in the middle. Each set of the sliding groove (47) is slidably connected with a connecting column (48). The three sets of connecting columns (48) are installed on the sliding plate (42). The third sliding block (45) and the fourth sliding block (46) are provided with a support plate (49) on the outside. The bottom of the support plate (49) is connected to the sliding plate (42). The third sliding block (45) and the fourth sliding block (46) are provided with a clamping block (410) on the left side. The sliding plate (42) is provided with a protective shell (411). The fixing plate (44) and the protective shell (411) are fixedly connected by bolts.
6. The wrench processing positioning device according to claim 5, characterized in that: A rubber pad (4101) is provided on the clamping block (410).
7. The wrench processing positioning device according to claim 5, characterized in that: The second sliding block (43) has a ramp angle at both ends, and the right ends of the third sliding block (45) and the fourth sliding block (46) also have a ramp angle, and the right ends of the third sliding block (45) and the fourth sliding block (46) match the ramp angles at both ends of the second sliding block (43).