A bench vise device for easy use by fitters
By designing a cylinder and gear rack transmission mechanism, the problems of cumbersome operation and positioning misalignment in traditional bench vises are solved, achieving efficient and reliable workpiece clamping and automatic centering, thus improving the automation level of the bench vise.
Patent Information
- Application Number
- CN202522457506.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-20
AI Technical Summary
Traditional bench vises are cumbersome to operate and inefficient. Furthermore, the single-sided drive causes the workpiece to shift during clamping, making it difficult to achieve automatic centering.
Using a cylinder as the power source, combined with a gear and rack synchronous transmission mechanism, the two clamping blocks move synchronously in opposite directions. The design of locking with a nut and cooperating with a U-shaped connecting plate ensures reliable locking and convenient disassembly of the clamping blocks.
It improves the automation level and operating efficiency of bench vises, ensures that the workpiece is automatically centered during clamping, reduces labor intensity and positioning offset problems, and enhances reliability.
Smart Images

Figure CN224939799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bench vise technology, specifically to a bench vise device that is convenient for fitters to use. Background Technology
[0002] As a core clamping tool in bench work, the performance of the bench vise directly affects the machining quality and operational efficiency of the workpiece. Currently, most bench vises on the market adopt a screw-nut transmission mechanism, which drives the movable jaw body to move by manually rotating the screw, thereby achieving the clamping and loosening of the workpiece.
[0003] However, this traditional structure has several inherent defects in practical applications: First, the manual screw-tightening method is inefficient and labor-intensive in operations involving frequent clamping and adjustment of work positions, making it difficult to meet the initial requirements of modern production for cycle time and automation. Second, since only one side of the clamping body is driven by a single screw, the workpiece will shift in position during clamping, making automatic centering impossible. This is particularly inconvenient for scenarios where symmetrical processing with the workpiece center as a reference is required, adding extra positioning steps and operational complexity.
[0004] Given the shortcomings of the existing technology, it is indeed necessary to innovate the structure of the driving and transmission methods of the vise. Therefore, the inventors have dedicated themselves to providing a novel vise device, aiming to solve the technical problems of cumbersome operation, low efficiency, and inconvenient centering of traditional vises.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a bench vise device that is convenient for fitters to use, thereby solving the problems mentioned in the background art.
[0007] This utility model provides the following technical solution: a bench vise device that is convenient for fitters to use, comprising: a fixed base, a cylinder, a guide rail, a clamping block one, a clamping block two, a rack one, a rack two, a gear, and a connecting plate;
[0008] The cylinder and the guide rail are fixed on the fixed base at intervals, and the axis of the cylinder's drive rod and the axis of the guide rail are coaxial.
[0009] Clamping block one and clamping block two are slidably fitted on the guide rail at intervals; clamping block one is positioned close to the cylinder.
[0010] The connecting plate has a U-shaped structure and is fixed to the clamping block one on the side near the cylinder; the cylinder's drive rod passes through the connecting plate and its end abuts against the clamping block one.
[0011] A nut is screwed onto the section of the cylinder's drive rod located in the U-shaped groove of the connecting plate. Rotating the nut away from the end of the drive rod will lock the cylinder's drive rod onto the connecting plate.
[0012] The mounting base has a hole on each side of the guide rail; the bottom of the mounting base has a mounting groove; rack one, rack two, and gear are all set in the mounting groove.
[0013] Among them, rack one is fixed to the bottom of clamping block one and slides in the channel on the same side; rack two is fixed to the bottom of clamping block two and slides in the channel on the same side; gears are rotatably connected to the top wall of the mounting groove and mesh with rack one and rack two respectively for transmission.
[0014] Preferably, each of the opposite sides of the mounting base has a mounting edge; the mounting edge is provided with a mounting hole.
[0015] Preferably, a cylinder is vertically fixed on the clamping block 2; a scale is provided on the side of the clamping block 2 near the cylinder and on the cylinder itself.
[0016] Preferably, a wing nut is connected to the cylinder.
[0017] Preferably, both clamping block one and clamping block two have multiple vertical clamping teeth on their clamping surfaces.
[0018] This utility model provides a bench vise device that is convenient for fitters to use, and has the following beneficial effects: This utility model uses a cylinder as a power source and combines it with a synchronous transmission mechanism of gears and racks to achieve synchronous movement of two clamping blocks in opposite directions with a single drive, fundamentally solving the problems of cumbersome operation and low efficiency of traditional manual bench vises; its transmission structure ensures that the workpiece is automatically centered during clamping, effectively overcoming the positioning offset problem caused by traditional single-sided drive; at the same time, the design of the nut locking and the U-shaped connecting plate not only provides a reliable mechanical self-locking guarantee for the clamping state, but also makes the disassembly and maintenance of the cylinder more convenient. The overall structure significantly improves the automation level, operating efficiency and reliability of the bench vise. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of the present invention from angle one;
[0020] Figure 2 This is a schematic diagram of the structure of this utility model from angle two;
[0021] Figure 3 This is a schematic diagram of the structure of angle three of this utility model. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] See Figures 1-3 To address the problems mentioned in the background section, this utility model provides a bench vise device that is convenient for fitters to use, thereby solving the aforementioned technical problems. The technical solution is as follows:
[0024] A bench vise device for easy use by fitters includes: a fixed base 110, a cylinder 120, a guide rail 140, a clamping block 130, a clamping block 2 170, a rack 162, a rack 2 163, a gear 161, and a connecting plate 122.
[0025] The cylinder 120 and the guide rail 140 are fixedly mounted on the fixed base 110 at intervals, and the axis of the drive rod 121 of the cylinder 120 is coaxial with the axis of the guide rail 140; wherein, the cylinder 120 is fixed to the fixed base 110 by bolts.
[0026] Clamping block 130 and clamping block 2170 are slidably fitted on guide rail 140 at intervals; clamping block 130 is positioned close to cylinder 120.
[0027] The connecting plate 122 has a U-shaped structure and is fixed on the clamping block 130 on the side near the cylinder 120; the drive rod 121 of the cylinder 120 passes through the connecting plate 122 and its end abuts against the clamping block 130.
[0028] A nut 123 is screwed onto the U-shaped groove section of the drive rod 121 of the cylinder 120 located on the connecting plate 122. Rotating the nut 123 in a direction away from the end of the drive rod 121 can lock the drive rod 121 of the cylinder 120 onto the connecting plate 122.
[0029] The fixed base 110 has a hole 114 on each side of the guide rail 140; the bottom of the fixed base 110 has a mounting groove 113; rack one 162, rack two 163, and gear 161 are all set in the mounting groove 113.
[0030] Among them, rack 162 is fixed to the bottom of clamping block 130 and slidably engaged with the channel 114 on the same side; rack 2 163 is fixed to the bottom of clamping block 2 170 and slidably engaged with the channel 114 on the same side; gear 161 is rotatably connected to the top wall of the mounting groove 113 and meshes with rack 162 and rack 2 163 respectively for transmission.
[0031] It should be noted that the locking nut 123 on the drive rod 121, when tightened, presses and secures it to the U-shaped connecting plate 122, providing mechanical locking. More importantly, this design allows the cylinder 120 to be separated from the clamping block simply by unscrewing the nut 123 when it needs to be disassembled, replaced, or repaired, without disassembling other major structures, greatly facilitating maintenance.
[0032] In this embodiment, a mounting edge 111 is fixed on each of the opposite sides of the fixing base 110; a mounting hole 112 is provided on the mounting edge 111.
[0033] In this embodiment, a cylinder 150 is vertically fixed on the clamping block 2 170; a scale is provided on the side of the clamping block 2 170 near the cylinder 150 and on the cylinder 150.
[0034] In this embodiment, a wing nut 151 is connected to the cylinder 150. When clamping block 130 and clamping block 2 170 clamp the plate workpiece from the left and right sides, the wing nut 151 can be rotated to apply an auxiliary clamping force from the front or rear side of the workpiece. This design constitutes multi-directional clamping and enhances the stability of the clamping.
[0035] In this embodiment, both clamping block 130 and clamping block 2170 have multiple vertical clamping teeth 131 on their clamping surfaces.
[0036] The following is a method of using a bench vise device that is convenient for fitters, provided by this embodiment of the invention.
[0037] (1) This utility model is securely mounted on the fitter's workbench via the mounting edges 111 and mounting holes 112 on both sides of the fixed base 110. The air source is activated, causing the drive rod 121 of the cylinder 120 to retract. At this time, the first clamping block 130 and the second clamping block 170 are separated from each other on the guide rail 140, forming sufficient operating space.
[0038] (2) Place the workpiece to be processed in the working area between the two clamping blocks. Control the cylinder 120 so that its drive rod 121 extends outward. The end of the drive rod 121 directly pushes the first clamping block 130, causing it to move towards the workpiece along the guide rail 140.
[0039] The movement of the first clamping block 130 causes the first rack 162 at its bottom to move. The first rack 162 drives the gear 161 to rotate, and the gear 161 then drives the second rack 163 to move in the opposite direction, thereby driving the second clamping block 170 to move synchronously toward the workpiece. This process causes the two clamping blocks to approach each other at equal speed from both sides and automatically center, ultimately clamping the workpiece.
[0040] (3) Before clamping, the scale set on the side of the second clamping block 170 and the cylinder 150 can be used to measure and position the cutting size of the workpiece to be processed, quickly determine the clamping position or scribing, and improve the accuracy and efficiency of the operation.
[0041] (4) After the processing is completed, the control cylinder 120 causes the drive rod 121 to retract. The drive rod pulls the first clamping block 130 back through the connecting plate 122. The transmission system then drives the second clamping block 170 to move in the opposite direction in sync. The two separate, the workpiece is released, and one work cycle is completed.
[0042] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.
Claims
1. A bench vise device convenient for fitters to use, characterized in that, include: Fixed base, cylinder, guide rail, clamping block one, clamping block two, rack one, rack two, gear and connecting plate; The cylinder and the guide rail are fixed on the fixed base at intervals, and the axis of the cylinder's drive rod and the axis of the guide rail are coaxial. Clamping block one and clamping block two are slidably fitted on the guide rail at intervals; clamping block one is positioned close to the cylinder. The connecting plate has a U-shaped structure and is fixed to the clamping block one on the side near the cylinder; the cylinder's drive rod passes through the connecting plate and its end abuts against the clamping block one. A nut is screwed onto the section of the cylinder's drive rod located in the U-shaped groove of the connecting plate. Rotating the nut away from the end of the drive rod will lock the cylinder's drive rod onto the connecting plate. The mounting base has a hole on each side of the guide rail; the bottom of the mounting base has a mounting groove; rack one, rack two, and gear are all installed in the mounting groove. Among them, rack one is fixed to the bottom of clamping block one and slides in the channel on the same side; rack two is fixed to the bottom of clamping block two and slides in the channel on the same side; gears are rotatably connected to the top wall of the mounting groove and mesh with rack one and rack two respectively for transmission.
2. The bench vise device for convenient use by fitters according to claim 1, characterized in that, Each of the two opposite sides of the mounting base has a mounting edge; the mounting edge is provided with mounting holes.
3. The bench vise device for convenient use by fitters according to claim 1, characterized in that, A cylinder is vertically fixed on the second clamping block; a scale is provided on the side of the second clamping block near the cylinder and on the cylinder itself.
4. The bench vise device for convenient use by fitters according to claim 3, characterized in that, A wing nut is attached to the cylinder.
5. A bench vise device for convenient use by fitters according to claim 1, characterized in that, Both clamping block one and clamping block two have multiple vertical clamping teeth on their clamping surfaces.
