Fixture

Abstract

The utility model provides a fixture which comprises a frame body, a plurality of supporting plates and a plurality of supporting rods, the supporting plates are sequentially arranged at intervals in the vertical direction, the supporting rods surround the supporting plates at intervals, and the supporting rods are arranged in the vertical direction and used for being connected with the supporting plates; the positioning structure comprises a plurality of first lantern rings and a plurality of second lantern rings, the first lantern rings are arranged on one supporting rod of every two adjacent supporting rods in a sleeving mode, the second lantern rings are arranged on the other supporting rod in a sleeving mode, the first lantern rings and the second lantern rings are connected through two positioning lines, and the two positioning lines are arranged in a spaced mode; a plurality of auxiliary positioning points are formed among the positioning points. The utility model solves the technical problem that the traditional fixture is not suitable for a full-length workpiece or an irregular workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of QPQ production auxiliary tools, in particular to a clamp. Background Art

[0002] The QPQ process is roughly as follows: cleaning, preheating, nitriding, oxidation, cleaning and desalting, drying, and oiling. In the above process, in order to improve efficiency, multiple workpieces are usually placed in the same fixture for processing, and the fixture is hoisted as a whole to transfer the workpieces in each process. However, for long or irregular workpieces, it is obviously not enough to fix them in the fixture by their own weight, and there is a risk of the fixture tilting, the workpiece not being completely processed, and the workpiece falling. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a clamp to solve the technical problem that the traditional clamp in the related art is not suitable for long workpieces or irregular workpieces.

[0004] The utility model provides a clamp, comprising:

[0005] The frame body comprises a plurality of support plates arranged in sequence at intervals in the vertical direction, and a plurality of support rods arranged at intervals around the support plates, wherein each of the support rods is arranged in the vertical direction and is used to connect each of the support plates;

[0006] The positioning structure includes a plurality of first rings and a plurality of second rings, wherein the first rings are sleeved on one of the two adjacent support rods, and the second rings are sleeved on the other support rod, and the first rings and the second rings are connected by two positioning lines, and the two positioning lines are arranged at intervals, and a plurality of auxiliary positioning points are constructed therebetween.

[0007] Furthermore, the first ring and the second ring are respectively fitted with clearances between the corresponding support rods, so that the two positioning lines move between two adjacent support plates.

[0008] Furthermore, at least one of the support rods is provided with two limit blocks at intervals, and the two limit blocks are respectively located on the upper and lower sides of the first ring or the second ring, and are detachably connected thereto to limit or release the movement of the first ring or the second ring.

[0009] Furthermore, the first ring or the second ring is fixed to the limiting block by magnetic attraction.

[0010] Furthermore, the first ring is rotatably provided with a winding wheel for winding at least one positioning line.

[0011] Furthermore, a protrusion is provided at one end of the positioning line protruding from the winding wheel, and the second ring is provided with an opening adapted to the protrusion, and the protrusion can be selectively extended into or extended from the opening.

[0012] Furthermore, the opening has a large end and a small end connected in sequence along the up-down direction, the large end of the opening is used to avoid the protrusion, and the small end is used to fix the protrusion.

[0013] Furthermore, a constriction is provided on the circumferential surface of the first sleeve ring for blocking the protrusion.

[0014] Furthermore, the support rod and / or the connection between the support rod and the support plate is provided with a reinforcing rib.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the frame includes a plurality of support plates arranged at intervals along the upper and lower directions, and a plurality of support rods arranged at intervals around the support plates. The arrangement of the plurality of support plates can improve the space utilization rate of the frame and can accommodate more workpieces at one time; at the same time, the support rods can connect the support plates to make the frame as a whole more stable; furthermore, a first ring and a second ring are respectively provided between two adjacent support rods, and the first ring and the second ring are connected by two positioning lines, and an auxiliary positioning point is formed between the two positioning lines for allowing the through-length or irregular-shaped workpiece to pass through so as to position it in the auxiliary positioning point, and combined with its own weight, it is not easy to tilt or fall during QPQ processing and lifting; and the two positioning lines can separate the workpieces after crossing each other to reduce processing dead angles, and the overall force of the fixture can be balanced after the workpieces are reasonably placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a clamp in one embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram of a first ring in an embodiment of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the second ring in one embodiment of the utility model.

[0019] Description of Figure Numbers:

[0020] 1. Support plate; 2. Support rod; 3. First set of rings; 301. Protrusion; 302. Narrowing; 4. Second set of rings; 401. Opening; 5. Positioning line; 6. Limit block; 7. Strengthening rib.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the embodiment of the present utility model, Figure 1 As shown, the clamp includes a frame and a positioning structure; the frame includes a plurality of support plates 1 arranged in sequence at intervals along the upper and lower directions, and a plurality of support rods 2 arranged at intervals around the support plates 1, each of the support rods 2 is arranged along the upper and lower directions for connecting each of the support plates 1; the positioning structure includes a plurality of first rings 3 and a plurality of second rings 4, the first rings 3 are sleeved on one of the two adjacent support rods 2, the second rings 4 are sleeved on the other support rod 2, and the first rings 3 and the second rings 4 are connected by two positioning lines 5, the two positioning lines 5 are arranged at intervals, and a plurality of auxiliary positioning points are constructed therebetween.

[0024] Specifically, in the embodiment of the utility model, two support plates 1 are arranged at intervals in the vertical direction to carry each workpiece, and four support rods 2 are respectively fixed at the four top corners of the support plates 1 to form the main frame of the frame; the arrangement of multiple support plates 1 can improve the space utilization of the frame, so as to process more workpieces at one time; at the same time, the arrangement of multiple support rods 2 can improve the overall stability of the frame; of course, in order to further improve the stability of the frame, the bottom of the support rod 2 can be fixed to the support plate 1 located at the lower layer, and the top of the support rod 2 is connected by a connecting rod to form an overall frame structure. In other embodiments, the number of support plates 1 and support rods 2, as well as the shape of the support plate 1 can be other; or the support plate 1 is a hollow structure in multiple places to reduce the contact area with the workpiece and prevent the occurrence of processing dead corners, which will not be described in detail here.

[0025] In the embodiment of the utility model, since the full-length or irregular-shaped workpiece (hereinafter collectively referred to as "workpiece") is placed vertically on each support plate 1, a positioning structure is provided to fix the workpiece; the positioning structure includes a first ring 3 and a second ring 4 respectively provided on two adjacent support rods 2, and the two rings are connected by two positioning lines 5 arranged at intervals, the two positioning lines 5 have a certain elasticity or are made of memory alloy, and the gap therebetween can allow the workpiece to pass through, so as to fix the workpiece in the initial position with the cooperation of the workpiece's own weight to prevent it from moving; on the other hand, since there is still a possibility of relative movement between the two adjacent workpieces (when the weight is relatively small), the two positioning lines 5 can be crossed with each other to form two crossing gaps to facilitate the passage of the workpiece (or, the two positioning lines 5 can be crossed multiple times to form multiple crossing gaps); in this way, the two workpieces can also be isolated to reduce processing dead angles. Of course, the above-mentioned first ring 3 and second ring 4 can be set in multiple numbers, and the two positioning lines 5 are not limited to connecting only two adjacent first rings 3 and second rings 4, but can also connect the first ring 3 and second ring 4 set diagonally, so as to fix the workpiece located in the middle of the support plate 1; the height setting, number of the rings and the degree of intersection of the positioning lines 5 can be configured according to the actual workpiece requirements.

[0026] The utility model fixes the two positioning lines 5 to the corresponding support rods 2 through the first ring 3 and the second ring 4, so that the workpiece can be fixed to each support plate 1 after passing through the two positioning lines 5. The line positioning method can avoid the risk of the workpiece tilting or falling on the fixture. After the workpiece is properly placed, the overall force of the fixture can be balanced, and more workpieces can be accommodated at one time.

[0027] In one embodiment, if Figure 1 As shown, the first collar 3 and the second collar 4 are respectively fitted with the corresponding support rods 2 in a clearance, so that the two positioning lines 5 can move between the two adjacent support plates 1. Specifically, due to the different shapes of workpieces, in order to improve the versatility of the clamp, the first collar 3 and the second collar 4 are both slidably arranged on the corresponding support rods 2 in this embodiment, so that the first collar 3 and the second collar 4 can slide up and down on the support rod 2, thereby linking the positioning line 5 to move up and down, and then changing the height of the positioning line 5, so as to fix the corresponding part of the workpiece in a targeted manner.

[0028] Further, in one embodiment, if Figure 1As shown, at least one of the support rods 2 is provided with two limit blocks 6 at intervals, and the two limit blocks 6 are respectively located on the upper and lower sides of the first ring 3 or the second ring 4, and are detachably connected thereto to limit or release the movement of the first ring 3 or the second ring 4. Specifically, in order to facilitate the taking and placing of the workpieces within the two positioning lines 5, the present embodiment provides two limit blocks 6 on the upper and lower sides of the two collars, that is, the limit blocks 6 are arranged at intervals with the collars, and when any collar moves to any limit block 6, it abuts against it to achieve the limit fit of the two, so as to fix the collar to the corresponding limit block 6; in this way, when the collar is lifted to make it fit with the limit block 6 located above, it is used to take out the workpiece, and conversely, when the collar is pressed down to make it fit with the limit block 6 located below, it is used to fix the workpiece; of course, as mentioned above, the height of the first collar 3 and the second collar 4 is determined by the shape of the workpiece, then the limit blocks 6 can also be threadedly connected with the support rod 2 to adjust the height of each limit block 6 on the support rod 2 to adapt to the corresponding collar; or the limit blocks 6 are directly fixed to the support rod 2, and since two limit blocks 6 are provided, they can fit with the corresponding collar. Preferably, the first collar 3 or the second collar 4 is fixed to the limit block 6 by magnetic attraction.

[0029] In one embodiment, the first ring 3 is rotatably provided with a winding wheel for winding at least one positioning line 5. Specifically, in order to enable the positioning line 5 to form multiple cross points and avoid the risk of the positioning line 5 breaking during the processing, this embodiment is provided with a winding wheel (not shown) rotatably in the first ring 3, and the winding wheel can wind the positioning line 5 so that the positioning line 5 can be extended or shortened to adapt to the actual positioning requirements; on the other hand, the winding wheel can be manually driven or mechanically driven by a ratchet pawl and a torsion spring, which is not limited here.

[0030] Further, in one embodiment, if Figure 2 , Figure 3 As shown, a protrusion 301 is provided at one end of the positioning line 5 protruding from the winding wheel, and an opening 401 adapted to the protrusion 301 is provided at the second ring 4, and the protrusion 301 can be selectively extended into or extended from the opening 401. Specifically, in order to facilitate the crossing of the positioning line 5 or the release of the workpiece, the present embodiment provides a protrusion 301 at one end of the positioning line 5 protruding from the winding wheel, and an opening 401 is provided on the surface of the second ring 4, and the protrusion 301 is pulled outward to extend into the opening 401, so that the positioning line 5 can be connected to the first ring 3 and the second ring 4; conversely, the protrusion 301 is released from the opening 401, so that the connection between the first ring 3 and the second ring 4 can be released. Furthermore, the release or connection of the positioning line 5 can be conveniently arranged on the corresponding workpiece, thereby improving the stability of the workpiece on the support plate 1.

[0031] Further, in one embodiment, if Figure 3 As shown, the opening 401 has a large end and a small end connected in sequence along the up-down direction, the large end of the opening 401 is used to avoid the protrusion 301, and the small end is used to fix the protrusion 301. Specifically, in order to fix the protrusion 301 in the opening 401, the present embodiment sets the opening 401 as a large end and a small end connected in sequence along the up-down direction, so that the protrusion 301 can slide into the small end through the large end of the opening 401, so as to limit the protrusion 301 to the small end of the opening 401, so as to facilitate the straightening of the positioning line 5; on the contrary, after the protrusion 301 is separated from the opening 401 through the large end of the opening 401, it is convenient to retract the positioning line 5 so as to take and place the corresponding workpiece.

[0032] Further, in one embodiment, if Figure 2 As shown, the circumference of the first collar 3 is provided with a constriction 302 for blocking the protrusion 301. Specifically, in order to prevent the positioning wire 5 from completely extending into the first collar 3, this embodiment provides a constriction 302 on the circumference of the first collar 3, and the constriction 302 can only allow the positioning wire 5 to pass through and block the protrusion 301 outside.

[0033] like Figure 1 As shown, the support rod 2 is provided with a reinforcing rib 7 for improving the overall strength of the frame.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamp, characterized in that: include: The frame body comprises a plurality of support plates arranged in sequence at intervals in the vertical direction, and a plurality of support rods arranged at intervals around the support plates, wherein each of the support rods is arranged in the vertical direction and is used to connect each of the support plates; The positioning structure includes a plurality of first rings and a plurality of second rings, wherein the first rings are sleeved on one of the two adjacent support rods, and the second rings are sleeved on the other support rod, and the first rings and the second rings are connected by two positioning lines, and the two positioning lines are arranged at intervals, and a plurality of auxiliary positioning points are constructed therebetween.

2. A clamp as claimed in claim 1, characterized in that: The first ring and the second ring are respectively matched with the corresponding support rods in a clearance, so that the two positioning lines move between two adjacent support plates.

3. A clamp as claimed in claim 2, characterized in that: At least one of the support rods is provided with two limit blocks at intervals, and the two limit blocks are respectively located at the upper and lower sides of the first ring or the second ring, and are detachably connected thereto to limit or release the movement of the first ring or the second ring.

4. A clamp as claimed in claim 3, characterized in that: The first ring or the second ring is magnetically fixed to the limiting block.

5. A clamp according to any one of claims 1 to 4, characterized in that: The first ring is rotatably provided with a winding wheel for winding at least one positioning line.

6. A clamp as claimed in claim 5, characterized in that: One end of the positioning line protruding from the winding wheel is provided with a protrusion, and the second ring is provided with an opening adapted to the protrusion, and the protrusion can be selectively extended into or out of the opening.

7. A clamp as claimed in claim 6, characterized in that: The opening has a large end and a small end connected in sequence along an up-down direction, the large end of the opening is used to avoid the protrusion, and the small end of the opening is used to fix the protrusion.

8. A clamp as claimed in claim 6, characterized in that: The circumferential surface of the first sleeve ring is provided with a constriction for blocking the protrusion.

9. A clamp as claimed in claim 1, characterized in that: The support rod and / or the connection between the support rod and the support plate are provided with reinforcing ribs.

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