Hydraulic self-centering vise

Abstract

This utility model discloses a hydraulic self-centering vise, including a vise clamping block base. A cross slide rail extending along the length direction is provided on the vise clamping block base. A hydraulic cylinder is fixed to the bottom of the vise clamping block base. A left clamping block assembly is slidably connected to the left side of the cross slide rail, and a right clamping block assembly is slidably connected to the right side of the cross slide rail. The left and right clamping block assemblies are mirror images of each other and are used to clamp products. A push block capable of vertical movement is connected to the piston rod of the hydraulic cylinder. The push block includes a push seat and a T-shaped inclined slide block. The upper end of the push seat is an arrowhead section. An inclined block is mirrored on both sides of the arrowhead section. An inclined rod connects the inclined block and the arrowhead section. The inclined rod and the inclined block cooperate to form the T-shaped inclined slide block. Inclined grooves that cooperate with the T-shaped inclined slide block are provided on the sides of the left and right clamping block assemblies. This structure shortens the operation time, has fewer parts, and provides a more uniform clamping force.

Description

Technical Field

[0001] This utility model relates to the technical field of clamps, specifically a hydraulic self-centering vise. Background Technology

[0002] A bench vise, also known as a flat-jaw vise, is a general-purpose clamping tool used to hold workpieces. Mounted on a workbench, it securely holds workpieces and is an essential tool in a fitter's workshop. This is because most of a fitter's work is done in a bench vise, such as sawing, filing, chiseling, and assembling and disassembling parts. Mounted on a fitter's bench, the vise also serves as a machine tool accessory for clamping workpieces during machining.

[0003] The existing method of operating a vise involves turning a screw with a wrench, which in turn moves the vise body via the screw nut, thus tightening and loosening the workpiece. This method undoubtedly increases the operation time and cannot achieve self-centering, resulting in uneven clamping force on both sides of the product. Therefore, an improvement is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic self-centering vise to solve the problem mentioned in the background art that the existing vise operation method is to use a wrench to turn the screw, and the screw nut drives the movable vise body to move, thereby tightening and loosening the workpiece. This operation method undoubtedly increases the operation time and cannot achieve self-centering, resulting in uneven clamping force on both sides of the product.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic self-centering vise, comprising a vise clamping block seat, wherein a cross slide rail extending along the length direction is provided on the vise clamping block seat, a hydraulic cylinder is fixed to the bottom of the vise clamping block seat, a left clamping block assembly is slidably connected to the left side of the cross slide rail, and a right clamping block assembly is slidably connected to the right side of the cross slide rail, the left clamping block assembly and the right clamping block assembly are mirror images of each other and are used to clamp products, and a push block capable of moving up and down is connected to the piston rod of the hydraulic cylinder, the push block comprising a push base and a T-shaped inclined slider. The upper end of the push base is an arrowhead section. A wedge block is mirrored on both sides of the arrowhead section. A wedge rod is connected between the wedge block and the arrowhead section. The wedge rod and the wedge block cooperate to form a T-shaped wedge block. The sides of the left and right clamping block groups are provided with wedge grooves that cooperate with the T-shaped wedge block. When the push block moves upward with the hydraulic cylinder, it pushes the left and right clamping block groups to move to both sides to open and release the clamped product. When the push block is pulled down with the hydraulic cylinder, it pushes the left and right clamping block groups to move towards the middle of the vise clamping block seat to clamp the product.

[0006] Preferably, for ease of assembly, the left clamping block assembly includes a left inclined block, an L-shaped left clamping seat, and a left clamping block. The left inclined block is provided with a left slider that is slidably connected to the front and rear slide rails of the cross slide rail. The L-shaped left clamping seat is located above the left inclined block. The left side of the left clamping block is on the L-shaped left clamping seat. The inclined groove is located on the right side of the left inclined block.

[0007] Preferably, for ease of assembly, the right clamping block assembly includes a right inclined block, an L-shaped right clamping seat, and a right clamping block. The right inclined block is provided with a right slider that is slidably connected to the front and rear slide rails of the cross slide rail. The L-shaped right clamping seat is located above the right inclined block. The right side of the right clamping block is on the L-shaped right clamping seat. The inclined groove is located on the left side of the right inclined block.

[0008] Preferably, to avoid damaging the product during clamping, the opposite sides of the right and left clamping blocks are provided with a silicone anti-slip layer.

[0009] Preferably, to facilitate the installation of the entire vise, the vise clamping block seat is also provided with one or more mounting through holes.

[0010] Preferably, the hydraulic cylinder is fixed to the bottom of the vise clamping block seat by two positioning brackets.

[0011] Preferably, to prevent the left and right clamping blocks from hitting other components on both sides when they move outward, a buffer is provided on the right side of the right inclined block and a buffer is provided on the left side of the left inclined block, and the outer heads of the buffers are made of silicone material.

[0012] Compared with existing technologies, this structure has the following technical advantages: This structure uses relatively few components to achieve rapid clamping and loosening of products, and it can achieve self-centering to ensure that the clamping force on both sides of the product is consistent, further improving the clamping effect. Moreover, it is more convenient to operate and further shortens the operation time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a hydraulic self-centering vise in Example 1; Figure 2 This is a schematic diagram of the structure of a hydraulic self-centering vise in Example 1 when the vise clamping block seat, positioning bracket and other components are separated; Figure 3 This is an exploded view of the overall structure of a hydraulic self-centering vise in Example 1; Figure 4 This is a schematic diagram of the pusher in Example 1; Figure 5 This is a schematic diagram of the vise clamping block seat in Example 1; Figure 6 This is a schematic diagram of the overall structure of the hydraulic self-centering vise in Example 2; Figure 7 This is a schematic diagram of the right clamping block in Example 2.

[0014] In the diagram: Vise clamping block seat 1, cross slide rail 101, mounting through hole 102, hydraulic cylinder 2, left clamping block assembly 3, left inclined block 301, L-shaped left clamping seat 302, left clamping block 303, left slider 3011, right clamping block assembly 4, right inclined block 401, L-shaped right clamping seat 402, right clamping block 403, right slider 4011, push seat 5, arrow part 6, inclined block 7, inclined rod 8, T-shaped inclined slider 14, inclined groove 9, silicone anti-slip layer 10, positioning bracket 11, buffer one 12, buffer two 13. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example 1

[0017] Please see Figures 1-5As shown in this embodiment, a hydraulic self-centering vise includes a vise clamping block seat 1. A cross slide rail 101 extending along the length direction is provided on the vise clamping block seat 1. A hydraulic cylinder 2 is fixed to the bottom of the vise clamping block seat 1. The hydraulic cylinder 2 is fixed to the bottom of the vise clamping block seat 1 by two positioning brackets 11. A left clamping block assembly 3 is slidably connected to the left side of the cross slide rail 101, and a right clamping block assembly 4 is slidably connected to the right side of the cross slide rail 101. The left clamping block assembly 3 and the right clamping block assembly 4 are mirror images of each other and are used to clamp products. A push block capable of moving up and down is connected to the piston rod of the hydraulic cylinder 2. The push block includes a push base 5. The push base 5 has an arrowhead section 6 at its upper end and a slanted block 7 mirrored on both sides of the arrowhead section 6. A slanted rod 8 connects the slanted block 7 and the arrowhead section 6. The slanted rod 8 and the slanted block 7 cooperate to form the T-shaped slanted slide block 14. Slanted grooves 9 that cooperate with the T-shaped slanted slide block 14 are provided on the sides of the left clamping block group 3 and the right clamping block group 4. When the push block is driven upward by the oil cylinder 2, it pushes the left clamping block group 3 and the right clamping block group 4 to move to both sides to open and release the clamped product. When the push block is driven downward by the oil cylinder 2, it pushes the left clamping block group 3 and the right clamping block group 4 to move towards the middle of the vise clamping block seat 1 to clamp the product.

[0018] Preferably, for ease of assembly, the left clamping block assembly 3 includes a left inclined block 301, an L-shaped left clamping seat 302, and a left clamping block 303. The left inclined block 301 has a left slider 3011 slidably connected to the front and rear slide rails of the cross slide rail 101. The L-shaped left clamping seat 302 is positioned above the left inclined block 301, and the left side of the left clamping block 303 is attached to the L-shaped left clamping seat 302. The inclined groove 9 is located on the right side of the left inclined block 301. The right clamping block assembly 4 includes a right inclined block 401, an L-shaped left clamping seat 302, and a left clamping block 303. The L-shaped right clamping seat 402 and right clamping block 403 are provided. The right inclined block 401 is provided with a right slider 4011 that is slidably connected to the front and rear slide rails of the cross slide rail 101. The L-shaped right clamping seat 402 is located above the right inclined block 401. The right side of the right clamping block 403 is on the L-shaped right clamping seat 402. The inclined groove 9 is located on the left side of the right inclined block 401. It should be noted that all components of the left clamping block group 3 and the right clamping block group 4 are fixed with screws, which can be easily disassembled and reassembled later.

[0019] Preferably, in order to facilitate the installation of the entire vise, the vise clamping block base 1 is also provided with one or more mounting through holes 102. By providing mounting through holes 102 on the vise clamping block base 1 and then using screws, the device can be installed on any workbench, and it is also convenient to remove it later to adapt it to any equipment.

[0020] Preferably, to prevent the left clamping block group 3 and the right clamping block group 4 from hitting other components on both sides when they move outward, a buffer 12 is provided on the right side of the right inclined block 401 and a buffer 23 is provided on the left side of the left inclined block 301. The outer heads of the buffer 23 and the buffer 12 are made of silicone material. Therefore, by adding the buffer 12 and the buffer 23, this structure can achieve the following: as the right inclined block 401 and the left inclined block 301 move to both sides, the corresponding buffer 12 and the buffer 23 also move outward, and finally, when they hit other components on both sides, they play a buffering role.

[0021] The working principle of this structure is as follows: When the hydraulic cylinder 2 drives the push base 5 and the T-shaped inclined slide block 14 to move upward, the T-shaped inclined slide blocks 14 on both sides will push the left clamping block group 3 and the right clamping block group 4 to move to both sides. At this time, the distance between the left clamping block 303 and the right clamping block 403 increases, thereby opening and releasing the clamped product. When the hydraulic cylinder 2 drives the push base 5 and the T-shaped inclined slide block 14 to move downward, the T-shaped inclined slide blocks 14 on both sides will push the left clamping block group 3 and the right clamping block group 4 downward. At this time, the left clamping block on both sides... Group 3 and right clamping block group 4 can move towards the center under the action of cross slide rail 101. At this time, the distance between left clamping block 303 and right clamping block 403 becomes smaller, thus clamping the product. The clamping force of both is consistent. Therefore, this structure uses relatively few parts to achieve quick clamping and loosening of the product. It can also achieve self-centering to ensure that the clamping force on both sides of the product is consistent, further improving the clamping effect. Moreover, it is more convenient to operate and further shortens the operation time. Example 2

[0022] Please see Figures 6-7 As shown, the general structure of the hydraulic self-centering vise disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, to avoid damage to the product during clamping, a silicone anti-slip layer 10 is provided on the opposite side of the right clamping block 403 and the left clamping block 303. Since the silicone anti-slip layer 10 is made of existing silicone material, it can prevent damage to the side surface of the product between the right clamping block 403 and the left clamping block 303 when they approach each other, thus avoiding product scrapping. Furthermore, since the structure of the left clamping block 303 is identical to that of the right clamping block 403, only mirrored, the silicone anti-slip layer 10 on the left clamping block 303 can be set with reference to... Figure 7 As shown.

[0023] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic self-centering vise, comprising a vise clamping block seat (1), characterized in that: The vise clamping block seat (1) is provided with a cross slide rail (101) extending along the length direction. A hydraulic cylinder (2) is fixed at the bottom of the vise clamping block seat (1). A left clamping block assembly (3) is slidably connected to the left side of the cross slide rail (101), and a right clamping block assembly (4) is slidably connected to the right side of the cross slide rail (101). The left clamping block assembly (3) and the right clamping block assembly (4) are mirror images of each other and are used to clamp the product. A push block that can move up and down is connected to the piston rod of the hydraulic cylinder (2). The push block includes a push seat (5) and a T-shaped inclined slide block (14). The upper end of the push seat (5) is an arrowhead part (6). On both sides of the arrowhead part (6) A slanted block (7) is provided on the inclined plane. A slanted rod (8) is connected between the slanted block (7) and the arrow part (6). The slanted rod (8) and the slanted block (7) cooperate to form a T-shaped slanted slider (14). Slanted grooves (9) that cooperate with the T-shaped slanted slider (14) are provided on the sides of the left clamping block group (3) and the right clamping block group (4). When the push block is driven to move upward with the oil cylinder (2), it pushes the left clamping block group (3) and the right clamping block group (4) to move to both sides to open and release the clamped product. When the push block is driven to pull down with the oil cylinder (2), it pushes the left clamping block group (3) and the right clamping block group (4) to move towards the middle of the vise clamping block seat (1) to clamp the product.

2. The hydraulic self-centering vise according to claim 1, characterized in that: The left clamping block assembly (3) includes a left inclined block (301), an L-shaped left clamping seat (302), and a left clamping block (303). The left inclined block (301) is provided with a left slider (3011) that is slidably connected to the front and rear slide rails of the cross slide rail (101). The L-shaped left clamping seat (302) is located above the left inclined block (301). The left side of the left clamping block (303) is on the L-shaped left clamping seat (302). The inclined groove (9) is located on the right side of the left inclined block (301).

3. The hydraulic self-centering vise according to claim 2, characterized in that: The right clamping block assembly (4) includes a right inclined block (401), an L-shaped right clamping seat (402), and a right clamping block (403). The right inclined block (401) is provided with a right slider (4011) that is slidably connected to the front and rear slide rails of the cross slide rail (101). The L-shaped right clamping seat (402) is located above the right inclined block (401). The right side of the right clamping block (403) is on the L-shaped right clamping seat (402). The inclined groove (9) is located on the left side of the right inclined block (401).

4. The hydraulic self-centering vise according to claim 3, characterized in that: The right clamp (403) and the left clamp (303) are both provided with a silicone anti-slip layer (10) on their opposite sides.

5. The hydraulic self-centering vise according to claim 3, characterized in that: The vise clamp block seat (1) is also provided with one or more mounting through holes (102).

6. The hydraulic self-centering vise according to claim 3, characterized in that: The hydraulic cylinder (2) is fixed to the bottom of the vise clamping block seat (1) by two positioning brackets (11).

7. The hydraulic self-centering vise according to claim 3, characterized in that: A buffer one (12) is provided on the right side of the right inclined block (401), and a buffer two (13) is provided on the left side of the left inclined block (301). The outer heads of the buffer two (13) and the buffer one (12) are made of silicone material.

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