Workpiece clamping jig capable of being opened and closed

By designing open and closed workpiece clamping fixtures, the locking components and fast positioning structures are used to solve the shaking and consistency of the paint spreader during loading, improving the stability and service life of the product, and reducing paint accumulation.

CN223159457UActive Publication Date: 2025-07-29JIAXING MINHUA AUTOMOTIVE PARTS CO LTD
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Patent Information

Application Number
CN202422057926.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-29
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

Existing paint spreaders have problems such as large shaking, rolling, poor load consistency and insufficient rigidity when loading products, resulting in paint stacking and short service life.

Method used

A workpiece clamping fixture that can be opened and closed is designed, including a frame, fixed clamping block, movable clamping block, adjusting guide rail and locking assembly. The locking assembly controls the movement of the movable clamping block to achieve stable clamping of the product, and uses isosceles trapezoid slots and ball-head plunger for rapid positioning.

Benefits of technology

It achieves no shaking or rolling after loading, improves load consistency and rigidity, extends service life, reduces paint accumulation, and improves product qualification rate.

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Abstract

The utility model discloses a workpiece clamping jig capable of being opened and closed, which comprises a rack, the rack is provided with at least one row of fixed clamping blocks which are horizontally arranged at equal intervals in the left-right direction, the left side or the right side of each fixed clamping block is provided with a movable clamping block matched with the fixed clamping block, and the distance between every two adjacent movable clamping blocks is equal. An adjusting guide rail moving left and right is connected to the rack in a sliding mode, all the movable clamping blocks are connected to the adjusting guide rail, and the rack is further provided with a locking assembly for limiting the adjusting guide rail to move left and right. The locking assembly comprises a locking seat arranged on the adjusting guide rail, a first connecting rod and a second connecting rod with one ends hinged to each other are arranged between the locking seat and the rack, the end, not connected with the first connecting rod, of the second connecting rod is hinged to the locking seat, and the end, not connected with the second connecting rod, of the first connecting rod is hinged to the rack. A pulling arm extends from one end of the first connecting rod connected with the second connecting rod. The jig has the advantages of being firm in clamping, stable in use, complete in overall function and high in practicability.
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Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and more particularly to an openable and closable workpiece clamping fixture. Background Art

[0002] Existing paint spray hangers have the following practical problems: 1. They experience significant wobbling when loading products, prone to sideways tilting and resulting in paint accumulation on the product's lower edge; 2. Product loading consistency on the jig is poor, impacting product qualification rates; 3. The tooling is weak in rigidity and prone to deformation, resulting in a short tool life and poor overall performance. Therefore, this utility model proposes an openable and closable workpiece clamping fixture. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an openable and closable workpiece clamping fixture, which has the characteristics of firm clamping and stable use.

[0004] In order to solve the above technical problems, the purpose of the present invention is achieved as follows: the present invention involves an openable and closable workpiece clamping fixture, including a frame, the frame is provided with at least one row of fixed clamping blocks arranged horizontally with equal spacing on the left and right sides, each of the fixed clamping blocks is provided with a matching movable clamping block on the left or right side, the spacing between two adjacent movable clamping blocks is equal, the frame is slidably connected to an adjustment guide rail for left and right movement, all movable clamping blocks are connected to the adjustment guide rail, and the frame is also provided with a locking component for limiting the left and right movement of the adjustment guide rail.

[0005] The utility model is further configured as follows: the locking assembly includes a locking seat provided on the adjustment guide rail, a first connecting rod and a second connecting rod are provided between the locking seat and the frame, one end of the second connecting rod not connected to the first connecting rod is hinged to the locking seat, the end of the first connecting rod not connected to the second connecting rod is hinged to the frame, and a pulling arm is extended from the end of the first connecting rod connected to the second connecting rod.

[0006] The utility model is further configured as follows: a slot is provided on the fixed clamping block, and an end of the slot facing the movable clamping block has an opening connected to the outside world.

[0007] The utility model is further configured as follows: the longitudinal section of the slot is in the shape of an isosceles trapezoid.

[0008] The utility model is further configured as follows: a ball head plunger with a ball head that can extend into the interior of a slot is provided on the end surface of the movable clamping block facing the fixed clamping block.

[0009] In summary, the present invention has the following beneficial effects:

[0010] 1. After the product is loaded, it does not shake left and right or tilt, and there is no irregular paint accumulation at the lower edge of the product.

[0011] 2. The consistent form of the loaded product is stable, and the qualified rate of the product is high.

[0012] 3. The tooling has strong rigidity, strong anti-deformation ability, and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the structure from another perspective of the present utility model;

[0015] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0016] Figure 4 is a schematic diagram of the partial structure of the present utility model;

[0017] Figure 5 is a schematic cross-sectional view of the slot for embodying the present utility model. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation solutions of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0019] The present utility model will be further described below in conjunction with the drawings and preferred embodiments.

[0020] Embodiment 1

[0021] See Figures 1 to 3As shown in the figure, a kind of openable and closable workpiece clamping fixture involved in this embodiment includes a frame 1. A row of fixed clamping blocks 2 are arranged horizontally and equidistantly on the left and right of the frame 1. A movable clamping block 3 is provided on the left or right side of each fixed clamping block 2, and the distance between adjacent movable clamping blocks 3 is equal. An adjustment guide rail 4 that moves left and right is slidably connected to the frame 1, and all movable clamping blocks 3 are connected to the adjustment guide rail 4. The frame 1 is also provided with a locking component for restricting the left and right movement of the adjustment guide rail; the locking component includes a locking seat 5 provided on the adjustment guide rail 4. A first connecting rod 6 and a second connecting rod 7 with one end hinged to each other are provided between the locking seat 5 and the frame 1. The end of the second connecting rod 7 not connected to the first connecting rod is hinged to the locking seat 5, and the end of the first connecting rod 6 not connected to the second connecting rod is hinged to the frame 1. A lever arm 8 extends from the end where the first connecting rod 6 and the second connecting rod 7 are connected.

[0022] In this embodiment, by prefabricating a hanging angle 100 for connection on the product, inserting the hanging angle 100 between a matching group of fixed clamping blocks 2 and movable clamping blocks 3, and after the movable clamping blocks 3 are clamped, the hanging angle 100 can be connected to the fixture, thereby realizing the stable suspension of the product.

[0023] Among them, the principle of controlling the clamping of the movable clamping block 3 is as follows: Pull up the lever arm 8 to make the first connecting rod 6 rise, drive the connected second connecting rod 7 to transmit power, pull the locking seat 5, and the locking seat 5 drives the adjustment guide rail 4 to move, causing all movable clamping blocks 3 to move followingly, moving towards the direction of the fixed clamping block 2 until the hanging angle 100 on the product is clamped.

[0024] Among them, the locking component can achieve a locking effect after the lever arm 8 rotates to a certain amplitude. If unlocking is required, it needs to be manually pulled back in the reverse direction to complete.

[0025] Embodiment 2

[0026] See Figures 1 to 4 As shown in the figure, a kind of openable and closable workpiece clamping fixture involved in this embodiment is further set on the basis of Embodiment 1. A slot 9 is opened on the fixed clamping block 2, and one end of the slot 9 facing the movable clamping block has an opening 91 connected to the outside.

[0027] Furthermore, a ball plunger 10 with a ball head that can extend into the slot is provided on the end face of the movable clamping block 3 facing the fixed clamping block.

[0028] A positioning hole 101 matching the ball head of the ball plunger 10 is also provided on the hanging angle 100. The hanging angle 100 is adapted to the slot 9. Through the setting of the slot 9, the hanging angle 100 to be inserted can be guided during insertion. Cooperating with the ball plunger 10, quick positioning in the insertion direction can be realized, making the clamping faster.

[0029] Example 3

[0030] Refer to Figures 1 to 5 As shown, a closable workpiece clamping fixture involved in this embodiment is further set, on the basis of Embodiment 2, such that the longitudinal section of the slot 9 is in the shape of an isosceles trapezoid.

[0031] In this implementation scheme, by setting the longitudinal section of the slot 9 to be in the shape of an isosceles trapezoid structure, it is also to more conveniently achieve the quick clamping of the hanging angle 100.

[0032] The closable workpiece clamping fixture involved in the present utility model does not shake or tilt laterally after the product is loaded, and there is no irregular paint accumulation at the lower edge of the product; the consistent form of the product loading is stable, and the product qualification rate is high; moreover, the tooling has strong rigidity, strong anti-deformation ability, long service life, perfect overall functions and strong practicability.

[0033] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating the orientation or positional relationship, it is based on the actual shown orientation or positional relationship, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present utility model are only used for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.

[0034] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "set", "connected" and "connected", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0035] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present application based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An openable and closable workpiece clamping fixture, comprising a frame, characterized in that: The frame is provided with at least one row of fixed clamps arranged horizontally with equal spacing left and right, and a movable clamp matching it is provided on the left or right side of each fixed clamp, and the spacing between two adjacent movable clamps is equal. The frame is slidably connected to an adjustment rail for left and right movement, and all movable clamps are connected to the adjustment rail. The frame is also provided with a locking component for limiting the left and right movement of the adjustment rail.

2. The openable and closable workpiece clamping fixture according to claim 1, wherein: The locking assembly includes a locking seat arranged on the adjustment guide rail, a first connecting rod and a second connecting rod are provided between the locking seat and the frame, an end of the second connecting rod not connected to the first connecting rod is hinged to the locking seat, an end of the first connecting rod not connected to the second connecting rod is hinged to the frame, and a pulling arm is extended from the end of the first connecting rod connected to the second connecting rod.

3. The openable and closable workpiece clamping fixture according to claim 1 or 2, characterized in that: The fixed clamping block is provided with a slot, and one end of the slot facing the movable clamping block is provided with an opening connected to the outside world.

4. The openable and closable workpiece clamping fixture according to claim 3, characterized in that: The longitudinal section of the slot is in the shape of an isosceles trapezoid.

5. The openable and closable workpiece clamping jig according to claim 4, characterized in that: A ball head plunger with a ball head that can extend into the interior of the slot is provided on the end surface of the movable clamping block facing the fixed clamping block.