Detection jig suitable for door lock frame

Abstract

The utility model discloses a detection tool suitable for a door lock frame, comprising a supporting seat, the supporting seat is provided with a flat supporting surface, the supporting seat is provided with a plurality of positioning holes distributed at intervals, and the positioning holes are respectively vertical to the supporting surface and penetrate through the supporting seat; and the multiple plug pins are arranged in the positioning holes in a sliding mode and correspond to the positioning holes in a one-to-one mode, and the diameter of each plug pin is consistent with the caliber of the corresponding positioning hole. According to the detection jig suitable for the door lock frame, the door lock frame is supported through the supporting seat, that is, the door lock frame is horizontally placed on the supporting seat, then the bolts are inserted into the positioning holes respectively, one end of each bolt extends into the corresponding mounting hole position, and after the mounting hole positions of the door lock frame are detected through the detection jig suitable for the door lock frame, the door lock frame can be accurately detected. The door lock frame with an unqualified mounting hole site can be prevented from entering the next link, so that the production efficiency and quality of the door lock are improved.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a testing fixture suitable for door lock frames. Background Technology

[0002] In modern industrial production, as people's demand for security continues to increase, the application of door locks is becoming increasingly widespread.

[0003] The door lock frame is an important component of a door lock. Many parts inside the door lock are usually installed on the door lock frame, and each component occupies a different area within the door lock frame. These areas are usually fixed to avoid insufficient internal space when installing parts inside the door lock frame. The various parts inside the door lock are usually installed and fixed by screws or locating pins in conjunction with the mounting holes on the door lock frame. Therefore, whether the location of the mounting holes on the door lock frame meets the production standards is particularly critical.

[0004] However, during the production process of door lock frames, the positioning of door lock frames on the production line is sometimes inaccurate due to abnormalities in the positioning fixture itself (such as loose screws at the positioning components) or human factors (failure to align the door lock frame on the positioning fixture). This further leads to inaccurate positioning of the mounting holes generated after drilling and tapping. At the same time, it is impossible for workers to identify these defective products by visual inspection alone, causing defective door lock frames to flow into the next stage, affecting the efficiency and quality of door lock production. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a testing fixture suitable for door lock frames, which aims to solve the problem that sometimes the positioning of door lock frames on the existing production line is inaccurate due to abnormalities in the positioning fixture itself or human factors. This leads to inaccurate positioning of the mounting holes generated after drilling and tapping, and the fact that it is impossible to identify such defective products by visual inspection alone. As a result, defective door lock frames flow into the next stage, affecting the efficiency and quality of door lock production.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] In a first aspect, embodiments of this utility model provide a testing fixture suitable for door lock frames, comprising:

[0008] The support base has a flat support surface and a plurality of spaced positioning holes, each of which is perpendicular to the support surface and penetrates the support base.

[0009] The device includes multiple pins, each of which is slidably disposed in a positioning hole and corresponds one-to-one with the positioning hole. The diameter of each pin is the same as the diameter of the corresponding positioning hole.

[0010] As a further improved technical solution, each of the pins can extend both ends of the positioning hole simultaneously from the positioning hole in which it is located.

[0011] As a further improved technical solution, the support base includes a base and a positioning plate. The support surface is located on the top side of the base, the positioning plate is fixedly disposed on the support surface, and the positioning hole passes through the positioning plate and the base in sequence along the vertical direction.

[0012] As a further improved technical solution, the positioning plate is detachably connected to the base.

[0013] As a further improvement, the aforementioned testing fixture for door lock frames also includes:

[0014] Positioning pin; the support base is also provided with a positioning lock hole that is perpendicular to the support surface and passes through the support base, the positioning pin is slidably disposed in the positioning lock hole, and the diameter of the positioning pin is the same as the diameter of the positioning lock hole.

[0015] As a further improved technical solution, both ends of the positioning pin can extend out of the positioning lock hole respectively.

[0016] As a further improvement, a flexible pad layer is laid on the surface of the support surface.

[0017] As a further improvement, the surface of the support base is formed with an oxide film through an oxidation treatment.

[0018] As a further improvement, the surface roughness Ra of the support surface is ≤0.4μm.

[0019] As a further improved technical solution, both ends of the pin and both ends of the positioning pin are chamfered so that the end faces of both ends of the pin and the positioning pin are respectively frustum-shaped.

[0020] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0021] This utility model embodiment provides a testing fixture suitable for door lock frames, including: a support base, the support base having a flat support surface, the support base having a plurality of spaced positioning holes, each positioning hole being perpendicular to the support surface and penetrating the support base; and a plurality of pins, each pin being slidably disposed in each of the positioning holes and corresponding one-to-one with each positioning hole, and the diameter of each pin being consistent with the diameter of the corresponding positioning hole. This invention uses a support base to support the door lock frame. The door lock frame is placed flat on the support base, with the side of the door lock frame having the mounting holes facing the support surface. Then, each pin is inserted into the positioning hole, with one end of the pin extending into the mounting hole. If the end of the pin can extend into the mounting hole, the door lock frame is qualified; if the end of the pin cannot extend into the mounting hole, the door lock frame is unqualified. By using the inspection fixture suitable for door lock frames to inspect the mounting holes of the door lock frame, door lock frames with unqualified mounting holes can be prevented from entering the next stage, thereby improving the production efficiency and quality of door locks. Attached Figure Description

[0022] Figure 1 An exploded view of a testing fixture for door lock frames provided by this utility model;

[0023] Figure 2 A three-dimensional structural diagram of a testing fixture for a door lock frame and a door lock frame before assembly, provided by this utility model;

[0024] Figure 3 A schematic diagram of the assembly structure of a testing fixture for a door lock frame and a door lock frame provided by this utility model;

[0025] Figure 4 This is a schematic diagram of the inner structure of the door lock frame in this utility model.

[0026] In the diagram: 1. Support base; 101. Base; 1011. Support surface; 102. Positioning plate; 2. Positioning hole; 3. Pin; 4. Positioning lock hole; 5. Positioning pin; 6. Door lock frame; 601. First mounting hole; 602. Second mounting hole. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Example:

[0029] like Figures 1-4 As shown. The testing fixture for the door lock frame includes: a support base 1, the support base 1 having a flat support surface 1011, and a plurality of spaced positioning holes 2, each positioning hole 2 being perpendicular to the support surface 1011 and penetrating the support base 1; and multiple pins 3, each pin 3 being slidably disposed in each positioning hole 2 and corresponding one-to-one with each positioning hole 2, and the diameter of each pin 3 being consistent with the diameter of its corresponding positioning hole 2.

[0030] like Figure 1 and Figure 4 As shown. In this embodiment, the testing fixture for the door lock frame includes a support base 1 and multiple pins 3; wherein, the top side of the support base 1 is provided with a flat support surface 1011, which is used to support the door lock frame 6, so that the door lock frame 6 is kept horizontal when placed on the support base 1; at the same time, the door lock frame 6 in this utility model is an existing device, which is provided with mounting holes adapted to the pins 3. By keeping the door lock frame 6 horizontal on the support surface 1011, the mounting holes in qualified products can be prevented from being misaligned with the pins 3, thereby avoiding errors in the test results.

[0031] The support base 1 is provided with a plurality of spaced positioning holes 2. Each positioning hole 2 is perpendicular to the support surface 1011 and passes through the support base 1. Each pin 3 is slidably disposed in each positioning hole 2 and corresponds one-to-one with each positioning hole 2. The diameter of each pin 3 is the same as the diameter of the corresponding positioning hole 2. That is, in this embodiment, the number of positioning holes 2 is the same as the number of pins 3. The size of each positioning hole 2 can be different, completely the same, partially the same, or partially different. For example, in this embodiment, there are eight positioning holes 2, so there are eight pins 3. The diameters of the eight positioning holes 2 can be eight different diameters, or the eight positioning holes 2 can be the same diameter, or the eight positioning holes 2 can be divided into two types according to their diameters. When the diameters of the eight positioning holes 2 are divided into two types, four positioning holes 2 can be 5mm in diameter and the other four positioning holes 2 can be 8mm in diameter. Each pin 3 is circular, and the diameter of each pin 3 is the same as or slightly smaller than the diameter of the corresponding positioning hole 2, so that the pin 3 can be smoothly inserted into the positioning hole 2 without wobbling.

[0032] Furthermore, the number of positioning holes 2 in this embodiment can be more than [number missing]. Figure 3The number of mounting holes on the middle door lock frame 6 includes a first mounting hole 601 and a second mounting hole 602. The first mounting hole 601 is a through hole that penetrates the door lock frame 6. For the first mounting hole 601, the test result can be determined by whether the bolt 3 can penetrate the first mounting hole 601. The second mounting hole 602 is a hole formed inside the door lock frame 6. It is formed by forming a hollow column with one end open inside the door lock frame 6, and then tapping the hollow column to form the second mounting hole 602. For the second mounting hole 602, the test result can be determined by the length of the exposed part of the bolt 3 after it can no longer move upward. If the length of the exposed part is longer than normal, it means that the top of the bolt 3 is not inserted into the second mounting hole 602. When the frame structure of the standard door lock frame 6 remains unchanged, but the internal lock cylinder structure is improved by changing the position of some mounting holes, the additional positioning holes 2 on the support 1 can continue to cooperate with the bolts 3 to continue testing the modified door lock frame 6, testing whether the added mounting holes on the modified door lock frame 6 are qualified. By increasing the number of positioning holes 2 and the corresponding number of bolts 3, the testing fixture can simultaneously test both the original and modified door lock frame 6, thus broadening the applicability of the testing fixture. The number of positioning holes 2 can also be added later by processing the support 1.

[0033] This invention uses a support base 1 to support the door lock frame 6. The door lock frame 6 is placed flat on the support base 1, with the side of the door lock frame 6 having the mounting holes facing the support surface 1011. Then, each pin 3 is inserted into the positioning hole 2, with one end of the pin 3 extending into the mounting hole. If the end of the pin 3 can extend into the mounting hole, the door lock frame 6 is qualified. If the end of the pin 3 cannot extend into the mounting hole, the door lock frame 6 is unqualified. By using the testing fixture suitable for the door lock frame 6 to test the mounting holes, door lock frames 6 with unqualified mounting holes can be prevented from entering the next stage, thereby improving the production efficiency and quality of the door lock.

[0034] like Figure 2 and Figure 3 As shown, as a further embodiment, each of the pins 3 can extend both ends of the positioning hole 2 simultaneously from its corresponding position hole 2. Specifically, the length of each pin 3 is longer than the length of its corresponding positioning hole 2, making it easier for workers to handle the pins 3 during testing.

[0035] As a further embodiment, the support base 1 includes a base 101 and a positioning plate 102. The support surface 1011 is located on the top side of the base 101, and the positioning plate 102 is fixedly mounted on the support surface 1011. The positioning plate 102 can be connected to the base 101 by welding, and the positioning hole 2 passes through the positioning plate 102 and the base 101 vertically in sequence. Specifically, the positioning plate 102 is used to limit the door lock frame 6. One side of the door lock frame 6 has an opening. The opening side of the door lock frame 6 is fastened to the support surface 1011 of the support base 1, and the inner side of the opening side abuts against the four sides of the positioning plate 102. This ensures that the positioning plate 102 and the opening side of the door lock frame 6 are fully engaged, thereby preventing the door lock frame 6 from moving and maintaining the accuracy of the test results.

[0036] In this embodiment, the positioning plate 102 is detachably connected to the base 101. Specifically, the positioning plate 102 can be connected to the base 101 by existing bolt connections or snap-fit ​​connections; for example, an upward-opening groove can be provided on the support surface 1011, the bottom of the positioning plate 102 can be embedded in the groove, and the bottom periphery of the positioning plate 102 can be abutted against the inner wall of the groove, so that the positioning plate 102 can be limited and fixed by the groove.

[0037] As a further embodiment, the testing fixture applicable to the door lock frame 6 also includes: a positioning pin 5; the support base 1 is also provided with a positioning lock hole 4 perpendicular to the support surface 1011 and penetrating the support base 1, the positioning pin 5 is slidably disposed in the positioning lock hole 4, and the diameter of the positioning pin 5 is consistent with the diameter of the positioning lock hole 4. Specifically, the positioning pin 5 is used to detect whether the hole position for installing the lock cylinder on the door lock frame 6 is qualified, and the diameter of the positioning pin 5 is larger than the diameter of each latch 3.

[0038] As a further improvement, the two ends of the positioning pin 5 can extend out of the positioning lock hole 4. Specifically, the length of the positioning pin 5 is longer than the length of the positioning lock hole 4, making it easier for the staff to grasp the pin 3 during inspection.

[0039] In this embodiment, a flexible pad (not shown) is laid on the surface of the support surface 1011. Specifically, the support base 1 and the door lock frame 6 in this embodiment are both metal parts. By laying a flat flexible pad on the surface of the support surface 1011, wear between the support base 1 and the door lock frame 6 can be avoided. The flexible pad can be a rubber layer or a resin layer.

[0040] As a further solution, the surface of the support base 1 is formed with an oxide film through an oxidation treatment. The formation of the oxide film can prevent the surface of the support base 1 from rusting and reduce maintenance costs.

[0041] As a further improvement, the surface roughness Ra of the support surface 1011 is ≤ 0.4 μm. Specifically, this surface roughness refers to the roughness of the support surface 1011 of the metal base 101. By reducing the roughness, the door lock frame 6 is placed more stably, resulting in more accurate test results.

[0042] In this embodiment, both ends of the pin 3 and both ends of the positioning pin 5 are chamfered, so that the end faces of both ends of the pin 3 and the positioning pin 5 are respectively frustum-shaped. By chamfering the ends of the positioning pin 5 and the pin 3, the pin 3 can be more easily inserted into the positioning hole 2, and the positioning pin 5 can be more easily inserted into the positioning lock hole 4, making it easier for operators to perform the operation.

[0043] This utility model embodiment provides a testing fixture suitable for door lock frames, including: a support base 1, the support base 1 having a flat support surface 1011, the support base 1 having a plurality of spaced positioning holes 2, each positioning hole 2 being perpendicular to the support surface 1011 and penetrating the support base 1; and a plurality of pins 3, each pin 3 being slidably disposed in each positioning hole 2 and corresponding one-to-one with each positioning hole 2, and the diameter of each pin 3 being consistent with the diameter of the corresponding positioning hole 2. This invention uses a support base 1 to support the door lock frame 6. The door lock frame 6 is placed flat on the support base 1, with the side of the door lock frame 6 having the mounting holes facing the support surface 1011. Then, each pin 3 is inserted into the positioning hole 2, with one end of the pin 3 extending into the mounting hole. If the end of the pin 3 can extend into the mounting hole, the door lock frame 6 is qualified. If the end of the pin 3 cannot extend into the mounting hole, the door lock frame 6 is unqualified. By using the testing fixture suitable for the door lock frame 6 to test the mounting holes, door lock frames 6 with unqualified mounting holes can be prevented from entering the next stage, thereby improving the production efficiency and quality of the door lock.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication 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.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0049] Of course, the above description of the embodiments of this utility model is quite detailed, but it should not be construed as a limitation on the scope of protection of this utility model. This utility model may have other various implementations. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model. The scope of protection of this utility model is subject to the appended claims.

Claims

1. A detection jig suitable for a door lock frame, characterized by, The utility model relates to a support seat, which comprises: a support seat provided with a flat support surface, a plurality of positioning holes being arranged on the support seat in a spaced manner, each positioning hole being perpendicular to the support surface and penetrating through the support seat; a plurality of plugs, each plug being slidably arranged in a corresponding positioning hole, and the diameter of each plug being consistent with the caliber of the corresponding positioning hole.

2. The detection jig suitable for a door lock frame according to claim 1, wherein Each plug can simultaneously extend both ends out of the corresponding positioning hole.

3. The detection jig suitable for a door lock frame according to claim 1, wherein The support seat comprises a base and a positioning plate, the support surface is located on the top side of the base, the positioning plate is fixedly arranged on the support surface, and the positioning holes penetrate through the positioning plate and the base in sequence in the vertical direction.

4. The detection jig suitable for a door lock frame according to claim 3, wherein The positioning plate and the base are detachably connected.

5. The detection tool for door lock frame according to claim 1, wherein Further comprising: a positioning pin, a positioning lock hole being arranged on the support seat and penetrating through the support seat in a perpendicular manner to the support surface, the positioning pin being slidably arranged in the positioning lock hole, and the diameter of the positioning pin being consistent with the caliber of the positioning lock hole.

6. The detection jig suitable for a door lock frame according to claim 5, wherein Both ends of the positioning pin can extend out of the positioning lock hole.

7. The detection tool for a door lock frame according to claim 1, wherein The surface of the support surface is paved with a flexible cushion layer.

8. The detection tool for door lock frame according to claim 1, wherein, The surface of the support seat is formed with an oxide film through oxidation treatment.

9. The detection tool for a door lock frame according to claim 1, wherein The surface roughness Ra of the support surface is less than or equal to 0.4 microns.

10. The detection tool for door lock frame according to claim 5, wherein, Both ends of the plug and both ends of the positioning pin are respectively provided with chamfers, so that both end faces of the plug and both end faces of the positioning pin are respectively in the shape of a truncated cone.

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