Clamp quick-changing device

Abstract

A clamp quick-changing device is used for quick changing of a positioner clamp and comprises a clamp supporting and driving pin penetrating device, a clamp supporting and driven pin penetrating device, a trolley positioning device and a clamp quick-changing trolley, and the clamp supporting and driving pin penetrating device is arranged at the driven end of a positioner; the clamp supporting and passive pin penetrating device is arranged at the driving end of the position changing machine. The trolley positioning device is arranged between the clamp support and the active pin penetrating device and between the clamp support and the passive pin penetrating device, and is used for positioning and locking the clamp quick-change trolley; the clamp quick-change trolley is used for carrying a quick-change clamp and is matched with the clamp supporting and active pin penetrating device and the clamp supporting and passive pin penetrating device to complete replacement of the quick-change clamp. According to the fixture quick-changing device, the time occupied by fixture switching is shortened, the requirements for operators and special auxiliary equipment are lowered, and meanwhile the fixture quick-changing device is suitable for switching of a fixed fixture and switching of a rotary positioner fixture.

Description

Technical Field

[0001] The present application relates to the technical field of fixture switching, and in particular to a fixture quick-changing device. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In the automatic welding production line, in order to meet the needs of different products, and also to reduce production costs, increase the utilization rate of robots, and increase production flexibility, the fixture is usually switched. The traditional fixture fixing method determines that the switching process is time-consuming, requires multiple operators to assist in the operation, consumes a lot of human resources, and requires special equipment such as forklifts.

[0003] The traditional fixture fixing method is to use the fixture positioning bushing to position the pin sleeve and the live screw to lock the fixture. When using this fixing method, the following steps are usually required when switching fixtures: 1) The forklift is in place: The forklift driver needs to move slowly during the forklift's arrival to avoid collision between the forklift teeth and the fixture or other equipment. After the forklift is in place, the forklift teeth should be placed directly under the fixture or in the forklift shoe; 2) The operator loosens the live screw and other fixture fixing screws to separate the fixture from the positioner; 3) The forklift picks up the fixture and withdraws it, and transports the fixture. At this time, the forklift driver needs to operate slowly to avoid collision; 4) The fixture to be switched is transported to the location and the fixture is placed slowly to avoid collision; 5) The operator tightens the live screw and other fixing screws to lock the fixture and the positioner, and the forklift exits. The fixture switching process is over. The fixture switching process requires the operator and the forklift to cooperate with each other, and the switching operation requires the forklift driver to have certain technical experience. At the same time, other people are needed to assist and pay attention to the interference between the fixture and surrounding equipment. This makes the fixture switching process time-consuming and labor-intensive, and it is difficult to meet the company's requirements for fast, flexible and simple fixture switching. Summary of the invention

[0004] In order to solve the defects of the prior art, the purpose of this application is to provide a fixture quick-change device to reduce the time occupied by fixture switching, reduce the demand for operators and special auxiliary equipment, and is applicable to both fixed fixture switching and rotary positioner fixture switching.

[0005] In order to achieve the above-mentioned purpose, the fixture quick-change device provided in the present application includes: a fixture support and active pin-penetrating device, a fixture support and passive pin-penetrating device, a trolley positioning device, and a fixture quick-change trolley, wherein:

[0006] The fixture support and active pin-threading device are arranged at the driven end of the positioner;

[0007] The fixture support and passive pin-piercing device are arranged at the active end of the positioner;

[0008] The trolley positioning device is arranged between the fixture support and the active pin-penetrating device and between the fixture support and the passive pin-penetrating device, and is used to position and lock the fixture quick-change trolley;

[0009] The fixture quick-change trolley is used to carry the quick-change fixture, and cooperates with the fixture support and active pin-penetrating device and the fixture support and passive pin-penetrating device to complete the replacement of the quick-change fixture.

[0010] Furthermore, the fixture support and active pinning device comprises: a slide plate in place locking pinning assembly, an anti-rotation pinning assembly, a first positioning pin, a support and guide wheel, a fixture automatic limit and release assembly, and a slide plate assembly, wherein:

[0011] The slide plate assembly is movably mounted on the fixed seat at the driven end of the positioner;

[0012] The first positioning pin and the support and guide wheels are respectively mounted on the side plate of the driven end of the positioner;

[0013] The slide assembly is used to move axially along the driven end of the positioner to allow the first positioning pin to penetrate into the positioning sleeve on the quick-change fixture, thereby completing the pin penetration and positioning of the quick-change fixture;

[0014] The slide plate is locked in place with a pin assembly, which is used to lock the slide plate of the slide plate assembly to prevent the driven end of the positioner from moving radially;

[0015] The anti-rotation pin assembly is used to prevent the driven end of the positioner from axially rotating.

[0016] Furthermore, the slide assembly comprises: a cylinder, a linear guide rail, a slide, and a concave and convex limit block installed on the fixed seat, wherein:

[0017] The slide plate is connected to the cylinder and is arranged on the linear guide rail.

[0018] Furthermore, the slide plate is locked in place through pin assembly, comprising: a cylinder, a connecting seat, a guide sleeve, a second positioning pin, and a limit block, wherein:

[0019] The connecting seat is connected to the slide plate of the slide plate assembly;

[0020] The limit block is installed on the fixing seat;

[0021] The cylinder is used to drive the second positioning pin with the guide sleeve to cooperate with the limit block to lock the slide plate.

[0022] Furthermore, the anti-rotation pin assembly comprises: a limit block, a third positioning pin, a guide sleeve, a connecting seat, and a cylinder, wherein:

[0023] The limit block is fixed on the side plate of the driven end of the positioner.

[0024] The connecting seat is connected to the slide of the slide assembly.

[0025] The cylinder is used to drive the third positioning pin with the guide sleeve.

[0026] Furthermore, the clamp automatic limit and release assembly includes: a limit block, a return spring, a detection switch, and a bump block, wherein:

[0027] The limit block, the return spring and the detection switch are installed at the end of the support and guide wheel;

[0028] The collision block is arranged at the front end of the fixture quick-change trolley and cooperates with the limit block, the return spring and the detection switch to achieve the limit or release of the quick-change fixture.

[0029] Furthermore, the fixture support and passive pinning device comprises: a positioning pin, a support and guide assembly, a fixture automatic limit and release assembly, and a fixing seat, wherein:

[0030] The positioning pin is arranged on the side plate of the active end of the positioner;

[0031] The support and guide assembly is fixed to the active end side plate of the positioner and is used to provide guidance and support for the quick-change fixture;

[0032] The clamp automatic limiting and releasing component is used to limit or release the quick-change clamp.

[0033] Furthermore, the support and guide assembly includes: a support plate and a guide wheel, the support plate is fixed on the active end side plate of the positioner, and the guide wheel is arranged on the upper surface of the support plate.

[0034] Furthermore, the fixture quick-change trolley comprises: a trolley body, a guide limit assembly, a non-return mechanism, and a support guide assembly, wherein:

[0035] The guide and limit stop assembly is installed at the front of the trolley body and is used to provide guide and limit stop functions;

[0036] The non-return mechanism and the support guide assembly are respectively installed at the rear of the trolley body;

[0037] The non-return mechanism is used to prevent the quick-change fixture located on the top of the trolley body from moving, while facilitating the release of the quick-change fixture;

[0038] The support and guide assembly is used to promote the switching of the quick-change fixture.

[0039] Furthermore, the guide and limit assembly includes: two groups of guide components and bumpers, which are respectively arranged on both sides of the front end of the trolley body; the guide components are located above the bumpers.

[0040] Furthermore, the non-return mechanism comprises: an operating rod, a limit block and a reset spring, wherein the operating rod is connected to the limit block, and the spring is located at the lower side of the limit block; the spring acts on the limit block to make the limit block rotate clockwise around the axis to reach a locked state; when the operating rod is pressed, the limit block rotates counterclockwise and the limit is disengaged, which is a released state.

[0041] Furthermore, the support and guide assembly comprises: a guide wheel, a limit assembly and a support ball, wherein the guide wheel and the support ball are connected to the trolley body; the limit assembly is divided into two parts, which are respectively connected to the trolley body and the quick-change clamp; the limit assembly connected to the quick-change clamp is located between the support ball and the limit assembly connected to the trolley body; the quick-change clamp is supported by the support ball when limiting, and is limited between the support ball and the limit assembly.

[0042] Furthermore, the fixture quick-change trolley further comprises: a pin-in-place plate fixed to the bottom of the front end of the trolley body, and casters and forklift shoes arranged around the bottom of the trolley body;

[0043] The in-place pin plate is used to cooperate with the trolley positioning device and is locked by the trolley positioning device when the fixture quick-change trolley is in place.

[0044] Furthermore, the trolley positioning device comprises: a connecting plate, a positioning pin, a guide sleeve, a connecting seat, a pin-threading cylinder, and a movable joint, wherein:

[0045] The upper end of the movable joint is connected to the positioning pin, and the lower end of the movable joint is connected to the pin-piercing cylinder;

[0046] The positioning pin is movably arranged in the guide sleeve and is located inside the connecting seat;

[0047] The pin-penetrating cylinder is installed at the lower end of the connecting seat, and the connecting plate is fixed at the upper end of the connecting seat.

[0048] Furthermore, the quick-change fixture comprises a quick-change fixture frame, and guide plates, support plates and positioning sleeves arranged on both sides of the quick-change fixture frame, wherein:

[0049] The support plate is fixed to the bottom of the quick-change fixture frame, the positioning sleeve is arranged above the support plate, and the guide plate is arranged below the support plate;

[0050] The positioning sleeve is used to cooperate with the fixture support and active pin-penetrating device and the fixture support and passive pin-penetrating device to complete fixture positioning.

[0051] The fixture quick-change device provided in this application has the following beneficial effects compared with the prior art:

[0052] The fixture support and active pin-threading device are moved along the axial direction of the positioner, so that the left side of the quick-change fixture is passively pinned, and the quick-change fixture is pushed to the right. The fixture support and passive pin-threading device located on the opposite side of the fixture support and the active pin-threading device passively pin the right side of the quick-change fixture to complete the centering and pin fixation of the quick-change fixture. The fixture quick-change device of the present application utilizes this left and right pin positioning method, which is suitable for both fixed fixture switching and rotary positioner fixture switching.

[0053] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0055] Figure 1 is a three-dimensional schematic diagram of a fixture quick-change device according to an embodiment of the present application;

[0056] Figure 2 is another three-dimensional schematic diagram of the fixture quick-change device according to an embodiment of the present application;

[0057] Figure 3 is a first top view of the fixture quick-change device according to an embodiment of the present application;

[0058] Figure 4 It is a three-dimensional schematic diagram of a fixture quick-change trolley according to an embodiment of the present application;

[0059] Figure 5 It is another three-dimensional schematic diagram of the fixture quick-change trolley according to an embodiment of the present application;

[0060] Figure 6 It is another three-dimensional schematic diagram of the fixture quick-change trolley according to an embodiment of the present application;

[0061] Figure 7 is a three-dimensional schematic diagram of a non-return mechanism according to an embodiment of the present application;

[0062] Figure 8 is a cross-sectional schematic diagram of a non-return mechanism according to an embodiment of the present application;

[0063] Fig. 9 This is a schematic diagram of the structure of a support and guide assembly according to an embodiment of the present application;

[0064] Fig.10 Schematic diagram of the quick-change fixture structure according to an embodiment of the present application;

[0065] Fig.11 This is a schematic structural diagram of a trolley positioning device according to an embodiment of the present application;

[0066] Fig.12 It is a three-dimensional schematic diagram of a clamp support and active pin-threading device according to an embodiment of the present application;

[0067] Fig.13 is another three-dimensional schematic diagram of the clamp support and active pin-threading device according to an embodiment of the present application;

[0068] Fig.14 It is a right view of the clamp support and active pin penetration device according to an embodiment of the present application;

[0069] Fig.15 is a schematic diagram of the structure of a skateboard assembly according to an embodiment of the present application;

[0070] Fig.16 This is a schematic diagram of the structure of a sliding plate locking pin assembly according to an embodiment of the present application;

[0071] Fig.17 This is a schematic diagram of the structure of an anti-rotation pin assembly according to an embodiment of the present application;

[0072] Fig.18 It is a structural schematic diagram of a clamp automatic limiting and releasing assembly according to an embodiment of the present application;

[0073] Fig.19 It is another structural schematic diagram of the automatic limit and release assembly of the clamp according to the embodiment of the present application;

[0074] Fig. 20 It is a three-dimensional schematic diagram of a clamp support and a passive pin-piercing device according to an embodiment of the present application;

[0075] Fig.21 is another three-dimensional schematic diagram of the clamp support and passive pin insertion device according to an embodiment of the present application;

[0076] Fig. 22 A top view of a fixture support and passive pinning device according to an embodiment of the present application;

[0077] Fig.23 is a second top view of the fixture quick-changing device according to an embodiment of the present application;

[0078] Fig.24It is a third top view of the clamp quick-change device according to the embodiment of the present application. DETAILED DESCRIPTION

[0079] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0080] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0081] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0082] It should be noted that the concepts of “first”, “second”, etc. may be mentioned in this application and are only used to distinguish different devices, components or parts, and are not used to limit the order or interdependence of the functions performed by these devices, components or parts.

[0083] It should be noted that the modifications of "one" and "plurality" mentioned in this application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more". "Plurality" should be understood as two or more.

[0084] In the description of the present application, it should be understood that the terms "upper", "lower", "one side", "top", "inside", "front", "two ends", etc. that may be mentioned to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0085] In the present application, unless otherwise clearly stipulated and limited, the terms such as "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0086] The positioner mentioned in this application is a special welding auxiliary equipment, which is suitable for welding position shifting of rotary work, and is a device that moves the workpiece to be welded to an ideal position for welding operation. The workpiece to be welded can obtain an ideal processing position and welding speed through the positioner. Usually, the positioner includes: a frame, two mounting seats arranged on the frame, one of which is provided with an active end, the other is provided with a driven end, and a rotatable turning table is arranged between the two mounting seats.

[0087] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0088] Figure 1 is a three-dimensional schematic diagram of a fixture quick-change device according to an embodiment of the present application, Figure 2 is another three-dimensional schematic diagram of the fixture quick-change device according to an embodiment of the present application, Figure 3 FIG. 1 is a first top view of the fixture quick-change device according to an embodiment of the present application, as shown in FIG. Figures 1 to 3 As shown, the fixture quick-change device of the present application includes: a fixture support and active pin-penetrating device 10, a fixture support and passive pin-penetrating device 20, a trolley positioning device 30, and a fixture quick-change trolley 40.

[0089] The fixture support and active pin-penetrating device 10 and the fixture support and passive pin-penetrating device 20 are respectively arranged on the positioner driven end 101 and the positioner active end 201 .

[0090] The trolley positioning device 30 is arranged between the fixture support and active pinning device 10 and the fixture support and passive pinning device 20. The trolley positioning device 30 is used to position the fixture quick-change trolley 40, and when the fixture quick-change trolley 40 reaches the trolley positioning device 30, it is locked.

[0091] The fixture quick-change trolley 40 is used to transport the quick-change fixture 43 to the middle of the fixture support and active pin-penetrating device 10 and the fixture support and passive pin-penetrating device 20.

[0092] The fixture support and passive pin-penetrating device 20 is axially unpowered, and the fixture support and active pin-penetrating device 10 serves as a power source to push the quick-change fixture 43 along the axial direction of the positioner.

[0093] The fixture on the positioner is automatically removed or the fixture on the fixture quick-change trolley 40 is installed on the positioner by using the cooperation of the fixture quick-change trolley 40, the fixture support and active pin-penetrating device 10, and the fixture support and passive pin-penetrating device 20.

[0094] Figure 4 is a three-dimensional schematic diagram of a fixture quick-change trolley according to an embodiment of the present application, Figure 5 is another three-dimensional schematic diagram of the fixture quick-change trolley according to an embodiment of the present application. Figure 6 FIG. 2 is another three-dimensional schematic diagram of a fixture quick-change trolley according to an embodiment of the present application. Figure 4-6 As shown, the fixture quick-change trolley 40 of this embodiment includes a trolley body 41, a guide limit assembly 42, a quick-change fixture 43, a non-return mechanism 44, a support guide assembly 45, and an in-place pin plate 46.

[0095] The guide limit assembly 42 is fixed on both sides of the front end of the trolley body 41. The quick-change fixture 43 is movably arranged on the top of the trolley body 41.

[0096] The non-return mechanism 44 and the support guide assembly 45 are respectively installed at the rear of the trolley body 41. The non-return mechanism 44 prevents the quick-change fixture 43 from moving, while making it easy to release the quick-change fixture 43. The support guide assembly 45 can make the quick-change fixture 43 easy to push and switch, saving effort.

[0097] The guide and limit assembly 22 is arranged at both sides of the front end of the trolley body 41, and includes a guide component (guide wheel) 421 and a bumper 422, wherein the guide component 421 is located above the bumper 422. The guide and limit assembly 22 plays a guiding and limit stop role when the fixture quick-change trolley 40 is pushed in (i.e., pushed between the fixture support and the active pin-penetrating device 10 and the fixture support and the passive pin-penetrating device 20).

[0098] The in-position pin plate 46 is arranged at the bottom end of the front part of the trolley body 41, and is used to cooperate with the trolley positioning device 30 when the clamp quick-change trolley 40 is pushed in, so as to lock the clamp quick-change trolley 40 to prevent it from moving.

[0099] like Figure 6 As shown, the fixture quick-change trolley of the embodiment of the present application also includes casters 48 and forklift shoes 49 located around the bottom of the trolley body 41. The casters 48 and forklift shoes 49 can facilitate operators to transport quick-change fixtures or use automatic forklifts.

[0100] Figure 7 is a three-dimensional schematic diagram of a non-return mechanism according to an embodiment of the present application, Figure 8is a cross-sectional schematic diagram of a non-return mechanism according to an embodiment of the present application, such as Figure 7 and Figure 8 As shown, the non-return mechanism 44 of this embodiment includes an operating rod 441, a limit stopper 442 and a return spring 443. The quick-change clamp 43 is locked automatically, and the return spring 443 provides power. The operator presses down the operating rod 441 to release the quick-change clamp 43.

[0101] The operating rod 441 is connected to the limit stopper 442, and the spring 443 is located at the lower side of the limit stopper 442. The spring 443 acts on the limit stopper 442 to rotate clockwise around the axis to reach a locked state. Figure 7 When the operator presses the operating lever 441, the limit stopper 442 rotates counterclockwise, and the limit is disengaged, and the state is released.

[0102] Fig. 9 is a schematic diagram of the structure of the support guide assembly according to an embodiment of the present application, such as Fig. 9 As shown, the support guide assembly 45 of this embodiment includes: a guide wheel 451, a limit assembly 452 and a support ball 453. Among them, the guide wheel 451 and the support ball 453 are connected to the trolley body 41, and the limit assembly 452 is divided into two parts, which are respectively connected to the trolley body 41 and the quick-change fixture 43. The limit assembly 452 connected to the quick-change fixture 43 is located between the support ball 453 and the limit assembly 452 connected to the trolley body 41, so as to achieve the purpose of limiting. At this time, the quick-change fixture 43 is supported by the support ball 453 and is limited between the support ball 453 and the limit assembly 452.

[0103] In the embodiment of the present application, the support ball 453 is used to provide support for the quick-change fixture 43, and a universal ball is used. The guide wheel 451 uses a bearing 6004-2Z. The support ball and the guide wheel can make the quick-change fixture 43 easy to push. The quick-change fixture 43 uses the limit component 452 and the guide wheel 451 to prevent deviation during the pushing process.

[0104] Fig.10 Schematic diagram of the quick-change fixture structure according to an embodiment of the present application, as shown in Fig.10 As shown, the quick-change fixture 43 of this embodiment includes: a quick-change fixture frame 431 and guide plates 432, support plates 433, and positioning sleeves 434 respectively arranged on both sides of the quick-change fixture frame 431. The guide plate 431 and the support plate 432 are arranged in an L shape, and are horizontally fixed to the bottom of the quick-change fixture frame 431 through the support plate 432, the positioning sleeve 434 is placed above the support plate 432, and the guide plate 431 is placed below the support plate 432. The positioning sleeves 434 on both sides and the fixture support cooperate with the active / passive pinning device to position the fixture.

[0105] Fig.11Schematic diagram of the structure of the trolley positioning device according to an embodiment of the present application, as shown in Fig.11 As shown, the trolley positioning device 30 of this embodiment includes: a connecting plate 31, a positioning pin 32, a guide sleeve 33, a connecting seat 34, a pin-penetrating cylinder 35, and a movable joint 36. The upper end of the movable joint 36 is connected to the positioning pin 32, and the lower end of the movable joint 36 is connected to the pin-penetrating cylinder 35; the positioning pin 32 is movably arranged in the guide sleeve 33, and is arranged inside the connecting seat 34 together; the pin-penetrating cylinder 35 is fixed to the lower end of the connecting seat 34, and the connecting plate 31 is fixed to the upper end of the connecting seat 34.

[0106] The trolley positioning device 30 of the present embodiment utilizes a pin-threading cylinder 35 to provide power, and connects the positioning pin 32 and the pin-threading cylinder 35 via a movable joint 36. After the fixture quick-change trolley 40 is in place, the pin-threading cylinder 35 is actuated to cause the positioning pin 32 to be inserted upward into the in-place pin-threading plate 46 at the bottom of the fixture quick-change trolley 40, thereby locking the fixture quick-change trolley 40.

[0107] Fig.12 is a three-dimensional schematic diagram of a fixture support and active pin-threading device according to an embodiment of the present application, Fig.13 is another three-dimensional schematic diagram of the fixture support and active pin-threading device according to an embodiment of the present application, Fig.14 FIG. 1 is a right side view of a fixture support and active pin-penetrating device according to an embodiment of the present application, as shown in FIG. Figure 12-14 As shown, the clamp support and active pinning device 10 of this embodiment includes: a slide plate locking pin assembly 11, an anti-rotation pin assembly 12, a positioning pin 13, a support and guide wheel 14, a clamp automatic limiting and releasing assembly 15, and a slide plate assembly 16.

[0108] The fixture support and active pinning device 10 is placed on a plane through the fixed seat 161 of the driven end of the positioner; the slide plate assembly 16 is movably installed on the fixed seat 161 of the driven end of the positioner, and the slide plate of the slide plate assembly 16 is connected to the driven end 101 of the positioner; the positioning pin 13 and the support and guide wheel 14 are installed on the side plate 1011 of the driven end of the positioner. The slide plate of the slide plate assembly 16 moves axially along the driven end 101 of the positioner, so that the positioning pin 13 installed on the side plate 1011 of the driven end of the positioner penetrates into the positioning sleeve 434 on the quick-change fixture 43, thereby completing automatic pinning and positioning the quick-change fixture. The slide plate locking pin assembly 11 is used to lock the slide plate of the slide plate assembly 16 to prevent the driven end 101 of the positioner from radial movement. The anti-rotation pin assembly 12 is used to prevent the driven end 101 of the positioner from axial rotation.

[0109] Fig.15 FIG. 1 is a schematic diagram of the structure of a skateboard assembly according to an embodiment of the present application. Fig.15As shown, the slide assembly 16 of this embodiment includes: a cylinder 162 mounted on a fixed seat 161 of the positioner driven end, a linear guide 163, a slide 164 and a concave and convex stopper 165. The slide 164 is connected to the cylinder 162 and movably mounted on the linear guide 163.

[0110] Fig.16 Schematic diagram of the structure of the sliding plate locking pin assembly according to the embodiment of the present application. Fig.16 As shown, the slide plate in place locking pin assembly 11 of this embodiment includes: a cylinder 111, a connecting seat 112, a guide sleeve 113, a positioning pin 114 and a limit block 115. The connecting seat 112 is connected to the slide plate 164 of the slide plate assembly 16, and the limit block 115 is installed on the fixed seat 161 of the positioner driven end. The positioning pin 114 with the guide sleeve 113 is driven by the cylinder 111 to cooperate with the limit block 115 to lock the slide plate 164 to prevent the positioner driven end 101 on the slide plate 164 from radial movement.

[0111] Fig.17 Schematic diagram of the structure of the anti-rotation pin assembly according to an embodiment of the present application, as shown in Fig.17 As shown, the anti-rotation through-pin assembly 12 of the embodiment of the present application includes: a limit block 121, a positioning pin 122, a guide sleeve 123, a connecting seat 124 and a cylinder 125. The limit block 121 is fixed on the side plate 1011 of the driven end of the positioner, the connecting seat 124 is connected to the slide plate 164, and the positioning pin 122 with the guide sleeve 123 is driven by the cylinder 125.

[0112] In this embodiment, before the quick-change fixture is changed, the first operating button is pressed to activate the anti-rotation pin assembly 12, so that the positioning pin 122 extends out and locks with the limit block 121 on the side plate 1011 of the driven end of the positioner to prevent the driven end 101 of the positioner from axially rotating. The first operating button can be installed on the safety protection fence and connected to the valve (using an air-controlled valve or an electromagnetic valve) that controls the driving cylinder 125. When the first operating button is pressed, the air-controlled valve or the electromagnetic valve acts to change the flow direction of the air circuit, and the air circuit driving cylinder 125 moves and extends, so that the positioning pin 122 extends and locks with the limit block 121. The positioning pin 122 is fixed to the slide plate 164 together with the guide sleeve 123, the mounting seat 124, and the cylinder 125, and the limit block 121 is fixed to the side plate 1011 of the driven end of the positioner, so that the anti-rotation effect is achieved through the locking of the positioning pin 122 and the limit block 121.

[0113] Fig.18 This is a schematic diagram of the structure of the automatic limit and release assembly of the clamp according to an embodiment of the present application. Fig.19 FIG. 2 is another structural diagram of the automatic limit and release assembly of the clamp according to an embodiment of the present application, as shown in FIG. Fig.18 and Fig.19As shown, the clamp automatic limit and release assembly 15 of this embodiment includes: a limit block 151, a return spring 152, a detection switch 153 and a collision block 154, wherein the limit block 151, the return spring 152 and the detection switch 153 are all installed at the right end of the support and guide wheel 14, and the collision block 154 is arranged at the front end of the clamp quick change trolley 40.

[0114] like Fig.18 As shown, the fixture automatic limit and release assembly 15 is in the release state when the fixture quick change trolley 40 is in place. At this time, the collision block 154 on the fixture quick change trolley 40 is inserted into the lower side of the limit block 151 and lifts the limit block 151, and the quick change fixture 43 can pass freely and reach the support and guide wheel 14. Fig.19 As shown, the clamp automatic limit and release assembly 15 is in a limited state when the clamp quick-change trolley 40 withdraws. At this time, the impact block 154 on the clamp quick-change trolley 40 withdraws, the limit block 151 is lifted by the return spring 152, the quick-change clamp 43 cannot pass freely, and the detection switch 153 has a signal.

[0115] Fig. 20 is a three-dimensional schematic diagram of a fixture support and a passive pinning device according to an embodiment of the present application, Fig.21 is another three-dimensional schematic diagram of the fixture support and passive pinning device according to an embodiment of the present application, Fig. 22 FIG. 1 is a top view of a fixture support and a passive pinning device according to an embodiment of the present application, as shown in FIG. Figure 20-22 As shown, the clamp support and passive pinning device 20 of this embodiment includes: a positioning pin 21, a support and guide component 22, and a clamp automatic limiting and releasing component 23.

[0116] The active end 201 of the positioner is mounted on the fixed seat 24, and the positioning pin 21 is arranged on the side plate 2011 of the active end of the positioner. The support and guide assembly 22 includes: a guide wheel 221 and a support plate 222, wherein the support plate 222 is fixed on the side plate 2011 of the active end of the positioner, and the guide wheel 221 is arranged on the upper surface of the support plate 222 to provide guidance and support for the quick-change fixture. The fixture automatic limit and release assembly 23 is used to limit or release the quick-change fixture 43, and its structure and working principle are the same as those of the above-mentioned fixture automatic limit and release assembly 15.

[0117] In this embodiment, the active end 201 of the positioner is mounted on the fixed seat 24, and the motor brake can prevent rotation. The fixture support and passive pinning device 20 are axially unpowered, and the fixture support and active pinning device 10 are located on the opposite side thereof and serve as a power source to push the quick-change fixture 43 along the axial direction of the positioner. When the quick-change fixture 43 moves, the positioning sleeve 434 on the quick-change fixture 43 is inserted into the positioning pin 21, that is, the fixture support and passive pinning device 20 passively completes the pinning positioning with the quick-change fixture 43.

[0118] Fig.23 is a second top view of the fixture quick-change device according to an embodiment of the present application, Fig.24 FIG. 1 is a third top view of the fixture quick-change device according to an embodiment of the present application. Fig.23 and Fig.24 , the workflow of the fixture quick change device switching fixture of this application is described:

[0119] like Fig.23 As shown, in the process of replacing the quick-change fixture 43 on the positioner, the operator pushes the fixture quick-change trolley 40 to the left (i.e., reaches the trolley positioning device 30), presses the second operating button that controls the action of the trolley positioning device 30, and makes the corresponding air control valve or solenoid valve work, changes the air flow direction, and provides power for the pin-through cylinder 35 on the trolley positioning device 30, thereby locking the fixture quick-change trolley 40; pulls the quick-change fixture 43 out onto the fixture quick-change trolley 40, presses the second operating button, and the trolley positioning device 30 releases the fixture quick-change trolley 40. At this time, the quick-change fixture 43 has been automatically locked on the fixture quick-change trolley 40, and the operator withdraws the fixture quick-change trolley 40.

[0120] like Fig.24 As shown, the operator pushes the fixture quick-change trolley 40 and the quick-change fixture 43 on its top into place (i.e., the fixture quick-change trolley 40 reaches the trolley positioning device 30), presses the second operating button, and the fixture quick-change trolley 40 is locked; pulls the operating rod 441 of the check mechanism 44 to release the quick-change fixture 43, pushes the quick-change fixture 43 into place, presses the second operating button and releases the fixture quick-change trolley 40, and automatically completes the alignment, pinning, and locking of the quick-change fixture 43. At this time, the quick-change fixture 43 has been accurately fixed on the positioner. Finally, the operator withdraws the fixture quick-change trolley 40 to complete the entire fixture quick-change process.

[0121] In the embodiment of the present application, the fixture support and active pin-threading device 20 moves along the axial direction of the positioner, so that the left side of the quick-change fixture 43 is passively pinned, and the quick-change fixture 43 is pushed to the right, and the fixture support and passive pin-threading device makes the right side of the quick-change fixture 43 passively pinned, and the quick-change fixture 43 completes the centering and pin-threading fixation. Similarly, due to the guiding effect, after the pin-removing action is completed, the quick-change fixture will also complete the centering and pin-removing. Through the fixture quick-change device of the present application, the quick-change fixture can be applied to the situation where the fixture is fixed, and can also be applied to the situation where the fixture rotates (fixture rotation refers to the fixture rotating along the rotation axis +-180°), and the positioning effect is still effective when the fixture rotates.

[0122] In the embodiments of the present application, the limit block of the automatic limit and release assembly and the impact block on the fixture quick-change trolley are utilized to achieve the following: when the fixture quick-change trolley is in place, the quick-change fixture is released from the limit, and the quick-change fixture can move freely forward and backward at this time; when the trolley withdraws, the quick-change fixture is automatically limited, and the quick-change fixture is limited at this time to prevent the quick-change fixture from falling off before the pin is inserted.

[0123] The fixture quick change device of the present application has the following advantages:

[0124] It is suitable for the situation where the fixture is fixed and the positioning method is used with the left and right pins. It is also suitable for the rotary positioner fixture (that is, the rotary positioner is required to complete the +-180° rotation when the fixture is used);

[0125] The mechanical structure is streamlined, and a set of action mechanisms completes the centering and pinning functions on both sides of the quick-change fixture without the need for an additional power mechanism, thus achieving automatic limit release and automatic anti-dropping of the quick-change fixture.

[0126] Simplifies the fixture quick-change process, eliminates the need for complex operations, and greatly shortens the time taken for quick-change.

[0127] No special equipment such as forklifts is required, which reduces equipment investment; and only one operator is needed to complete the quick change of fixtures, which greatly reduces human resource investment and greatly reduces the cost of fixture switching.

[0128] Those skilled in the art can understand that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fixture quick-change device, used for quick replacement of positioner fixtures, characterized in that: include: Fixture support and active pinning device, fixture support and passive pinning device, trolley positioning device, and fixture quick-change trolley, among which, The fixture support and active pin-threading device are arranged at the driven end of the positioner; The fixture support and passive pin-piercing device are arranged at the active end of the positioner; The trolley positioning device is arranged between the fixture support and the active pin-penetrating device and between the fixture support and the passive pin-penetrating device, and is used to position and lock the fixture quick-change trolley; The fixture quick-change trolley is used to carry the quick-change fixture, and cooperates with the fixture support and active pin-penetrating device and the fixture support and passive pin-penetrating device to complete the replacement of the quick-change fixture.

2. The fixture quick-change device according to claim 1, characterized in that: The fixture support and active pinning device comprises: a slide plate in place locking pinning assembly, an anti-rotation pinning assembly, a first positioning pin, a support and guide wheel, a fixture automatic limit and release assembly, and a slide plate assembly, wherein: The slide plate assembly is movably mounted on the fixed seat at the driven end of the positioner; The first positioning pin and the support and guide wheels are respectively mounted on the side plate of the driven end of the positioner; The slide assembly is used to move axially along the driven end of the positioner to allow the first positioning pin to penetrate into the positioning sleeve on the quick-change fixture, thereby completing the pin penetration and positioning of the quick-change fixture; The slide plate is locked in place with a pin assembly, which is used to lock the slide plate of the slide plate assembly to prevent the driven end of the positioner from moving radially; The anti-rotation pin assembly is used to prevent the driven end of the positioner from axially rotating.

3. The fixture quick-change device according to claim 2, characterized in that: The slide assembly comprises: a cylinder, a linear guide rail, a slide, and a concave and convex limit block installed on the fixed seat, wherein: The slide plate is connected to the cylinder and is arranged on the linear guide rail.

4. The fixture quick-change device according to claim 2, characterized in that: The slide plate is locked in place and the pin assembly comprises: a cylinder, a connecting seat, a guide sleeve, a second positioning pin, and a limit block, wherein: The connecting seat is connected to the slide plate of the slide plate assembly; The limit block is installed on the fixing seat; The cylinder is used to drive the second positioning pin with the guide sleeve to cooperate with the limit block to lock the slide plate.

5. The fixture quick-change device according to claim 2, characterized in that: The anti-rotation pin assembly includes: a limit block, a third positioning pin, a guide sleeve, a connecting seat, and a cylinder, wherein: The limit block is fixed on the side plate of the driven end of the positioner. The connecting seat is connected to the slide of the slide assembly. The cylinder is used to drive the third positioning pin with the guide sleeve.

6. The fixture quick-change device according to claim 2, characterized in that: The clamp automatic limit and release assembly includes: a limit block, a return spring, a detection switch, and a bump block, wherein: The limit block, the return spring and the detection switch are installed at the end of the support and guide wheel; The collision block is arranged at the front end of the fixture quick-change trolley and cooperates with the limit block, the return spring and the detection switch to achieve the limit or release of the quick-change fixture.

7. The fixture quick-change device according to claim 1, characterized in that: The fixture support and passive pinning device comprises: a positioning pin, a support and guide assembly, a fixture automatic limit and release assembly, and a fixing seat, wherein: The positioning pin is arranged on the side plate of the active end of the positioner; The support and guide assembly is fixed to the active end side plate of the positioner and is used to provide guidance and support for the quick-change fixture; The clamp automatic limiting and releasing component is used to limit or release the quick-change clamp.

8. The fixture quick-change device according to claim 7, characterized in that: The support and guide assembly comprises: a support plate and a guide wheel. The support plate is fixed on the active end side plate of the positioner, and the guide wheel is arranged on the upper surface of the support plate.

9. The fixture quick-change device according to claim 1, characterized in that: The fixture quick-change trolley comprises: a trolley body, a guide limit assembly, a non-return mechanism, and a support guide assembly, wherein: The guide and limit stop assembly is installed at the front of the trolley body and is used to provide guide and limit stop functions; The non-return mechanism and the support guide assembly are respectively installed at the rear of the trolley body; The non-return mechanism is used to prevent the quick-change fixture located on the top of the trolley body from moving, while facilitating the release of the quick-change fixture; The support and guide assembly is used to promote the switching of the quick-change fixture.

10. The fixture quick-change device according to claim 9, characterized in that: The guide and limit assembly comprises: two groups of guide components and bumpers, which are respectively arranged on both sides of the front end of the trolley body; the guide components are located above the bumpers.

11. The fixture quick-change device according to claim 9, characterized in that: The non-return mechanism comprises: an operating rod, a limit stop and a reset spring, wherein the operating rod is connected to the limit stop, and the spring is located at the lower side of the limit stop; the spring acts on the limit stop to make the limit stop rotate clockwise around the axis to reach a locked state; when the operating rod is pressed, the limit stop rotates counterclockwise and the limit is disengaged, which is a released state.

12. The fixture quick-change device according to claim 9, characterized in that: The support and guide assembly includes: a guide wheel, a limit assembly and a support ball, wherein the guide wheel and the support ball are connected to the trolley body; the limit assembly is divided into two parts, which are respectively connected to the trolley body and the quick-change clamp; the limit assembly connected to the quick-change clamp is located between the support ball and the limit assembly connected to the trolley body; the quick-change clamp is supported by the support ball when limiting, and is limited between the support ball and the limit assembly.

13. The fixture quick-change device according to claim 9, characterized in that: The fixture quick-change trolley also includes: a pin-in-place plate fixed to the bottom of the front end of the trolley body, and casters and forklift shoes arranged around the bottom of the trolley body; The in-place pin plate is used to cooperate with the trolley positioning device and is locked by the trolley positioning device when the fixture quick-change trolley is in place.

14. The fixture quick-change device according to claim 1, characterized in that: The trolley positioning device comprises: a connecting plate, a positioning pin, a guide sleeve, a connecting seat, a pin-threading cylinder, and a movable joint, wherein: The upper end of the movable joint is connected to the positioning pin, and the lower end of the movable joint is connected to the pin-piercing cylinder; The positioning pin is movably arranged in the guide sleeve and is located inside the connecting seat; The pin-penetrating cylinder is installed at the lower end of the connecting seat, and the connecting plate is fixed at the upper end of the connecting seat.

15. The fixture quick-change device according to claim 1, characterized in that: The quick-change fixture comprises a quick-change fixture frame, and guide plates, support plates and positioning sleeves arranged on both sides of the quick-change fixture frame, wherein: The support plate is fixed to the bottom of the quick-change fixture frame, the positioning sleeve is arranged above the support plate, and the guide plate is arranged below the support plate; The positioning sleeve is used to cooperate with the fixture support and active pin-penetrating device and the fixture support and passive pin-penetrating device to complete fixture positioning.

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